Building drainage pipeline arrangement system and method based on BIM

Abstract

The invention discloses a BIM (Building Information Modeling)-based building drainage pipeline arrangement system and method. The method comprises the following steps: acquiring field data through laser scanning or an unmanned aerial vehicle, importing a BIM model to carry out drainage system design, arranging pipeline components and carrying out conflict detection; a design drawing and a material list are automatically generated by simulating and evaluating the operation state and the overload risk of the system, and are linked with the market price; the pipeline state is monitored in real time through a sensor, and the BIM model is updated; according to the BIM-based building drainage pipeline arrangement system and method, laser scanning, unmanned aerial vehicle surveying and mapping and other means are introduced before modeling, the accuracy of initial data is ensured, local design specifications and construction standards are embedded into a BIM tool in advance, and later adjustment is avoided.

Description

Technical Field

[0001] The present invention belongs to the field of BIM-based building drainage pipeline layout, and in particular relates to a BIM-based building drainage pipeline layout system and method. Background Art

[0002] A BIM-based building drainage pipeline layout is a way to design, plan and manage the internal drainage system of a building using BIM technology. Using BIM software to build a three-dimensional model can intuitively display the layout of the internal drainage pipeline of the building, accurately express the direction of the pipeline, the connection point and the relationship with other building components; BIM can help designers detect spatial conflicts with other systems (such as HVAC, water supply, and electrical pipelines) when planning drainage pipelines, discover problems in advance, optimize the layout, and reduce rework; based on the BIM model, the size and material list of the pipeline can be automatically generated to ensure the consistency of materials in the design and construction stages, and provide detailed parameters such as pipeline specifications, flow requirements and slope calculations; BIM software can have built-in relevant drainage design specifications to ensure that the design meets local regulations and standards (such as drainage slope, pipe diameter selection, etc.); BIM models can be used in the construction stage, and the three-dimensional model can be used to guide workers to accurately install pipelines to reduce errors. At the same time, the construction process can be simulated to optimize the construction sequence; after the building is delivered, the BIM model is saved as a digital asset to facilitate the later maintenance, inspection and upgrading of the drainage pipeline, quickly locate the problem location, and reduce maintenance time.

[0003] However, despite the many advantages of BIM-based building drainage pipeline layout, there are still some shortcomings and challenges in practical applications. If the data is inaccurate in the initial information collection stage, it may cause problems with the BIM model. The design specifications and construction standards in different regions may not be fully embedded in the BIM software, and the design output may require additional adjustments. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a BIM-based building drainage pipeline layout system and method, which introduces laser scanning, drone mapping and other means before modeling to ensure the accuracy of the initial data, and pre-embeds local design specifications and construction standards into the BIM tool to avoid later adjustments.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A building drainage pipeline layout system based on BIM, including:

[0007] Data acquisition and modeling module, which is used to obtain on-site environmental data through laser scanning and drone aerial photography technology, use parameterized component libraries to build various types of drainage systems, and embed national and regional drainage design specifications;

[0008] Drainage simulation module, which is used to integrate fluid simulation software, optimize pipeline layout, simulate the operation of drainage system in different scenarios, and evaluate design feasibility;

[0009] Design module, a cloud-based collaborative platform that automatically generates standardized construction drawings from BIM models for real-time data sharing and version management;

[0010] Data management and standardization module, which is used to adopt IFC and COBie standardized data formats, make cross-software compatible, establish model version management mechanism, and have built-in rule checking tools to automatically verify the integrity and accuracy of model data;

[0011] The post-operation and maintenance module is used to update the operating data in the BIM model in real time through IoT sensors, set up a simplified operation interface, generate problem location and maintenance solutions on a visual interface, and predict potential system failures and provide early warnings based on AI and big data analysis.

[0012] A method for arranging building drainage pipelines based on BIM, comprising:

[0013] Use laser scanners or drones to obtain data on the existing site or structure of the building, import the BIM model of the building structure, including floor slabs, walls, columns and equipment layout information, and set the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, based on national or regional drainage design specifications;

[0014] Call standard drainage pipes, inspection wells, and cleaning port components in the BIM component library, use the wiring tools of the BIM software to arrange the paths of horizontal and vertical pipes, set the pipe slope according to the specification requirements, and automatically adjust the elevation of each node and generate layout data. Use the conflict detection function of the BIM software to check the intersection conflict between the drainage pipe and other systems;

[0015] Arrange inspection wells according to the generated layout data, arrange cleaning ports at bends and slope changes, design the top vent pipe of the main riser, and introduce auxiliary vent pipes according to the field data;

[0016] The simulation system simulates the flow state of rainwater and domestic wastewater under different working conditions, simulates the operation during the peak water consumption period, and evaluates the risk of drainage pipeline overload;

[0017] Automatically generate the plan layout and section drawings of the drainage system based on the BIM model, generate detailed drawings of each node, generate a bill of materials based on the model, including pipe specifications, lengths, types and quantities of accessories, obtain real-time market prices through data links, and automatically estimate material costs;

[0018] By comparing the consistency of the BIM model with the actual measured data at the construction site, sensors are installed at key nodes to monitor the pipeline operation status in real time, and the maintenance or replacement information is updated to the BIM model.

[0019] As a preferred method, a laser scanner or drone is used to obtain data on the existing site or structure of the building, and a BIM model of the building structure is imported, including floor slabs, walls, columns and equipment layout information. Based on the national or regional drainage design specifications, the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, are set as follows:

[0020] Use laser scanners to collect 3D point cloud data of existing buildings or sites. For large or complex sites, use drones to capture high-resolution images and data.

[0021] Use software ReCap and CloudCompare to clean up noise and redundant data from point cloud data, use Pix4D or similar software to generate orthophotos and digital surface models for aerial images, import point cloud or terrain data into BIM software Revit and ArchiCAD, and combine with existing building design models;

[0022] Use local or national drainage specifications as the design basis, determine the slope requirements, and select the appropriate pipe diameter according to the design flow and drainage type.

[0023] As a preferred method, standard drainage pipes, inspection wells, and cleaning port components are called in the BIM component library. The horizontal and vertical pipe paths are arranged through the wiring tools of the BIM software. The pipeline slope is set according to the specification requirements, and the elevation of each node is automatically adjusted and the layout data is generated. The conflict detection function of the BIM software is used to check the cross-conflict between the drainage pipe and other systems. The method is as follows:

[0024] Import the building information BIM model, which contains information on the building floor, walls, columns and equipment layout, and select drainage system components that meet the design specifications in the BIM component library;

[0025] Use the pipeline layout tool of BIM software to draw the horizontal pipeline path, set the slope, and avoid the key structure of the building. Use BIM software to establish the vertical drainage path and automatically adjust the connection nodes between the vertical pipe and the horizontal pipe;

[0026] BIM software is used to perform conflict detection, including cross-system conflicts and internal conflicts. Conflict reports are automatically generated, conflict locations are marked, and pipeline layouts or node elevations are adjusted based on the conflict reports.

[0027] As a preferred method, according to the generated layout data, the inspection well is arranged, and the cleaning port is arranged at the turning and slope change. The vent pipe on the top of the main riser is designed. The method of introducing the auxiliary vent pipe according to the field data is as follows:

[0028] According to the designed flow and drainage volume, select the appropriate inspection well specifications, and set up inspection wells at the turns, slope changes, pipe diameter changes and confluence points of the drainage pipe;

[0029] Use BIM software to insert the inspection well components into the corresponding positions and automatically connect them with the pipeline nodes;

[0030] Call the standard cleaning port component in the BIM software and set it at key nodes. Set cleaning ports at the starting point, end point and turning point of the horizontal drainage pipe. For pipe sections with large slope changes, increase the density of cleaning port layout. Use the pipeline slope analysis tool to evaluate the flow of sewage in the pipe and adjust the cleaning port position.

[0031] Using the pipe layout function of BIM software, the vent pipe is arranged inside the wall or in the pipe well, and the main vent pipe is set on the top of the main drainage riser to ensure the pressure balance inside the pipe. According to the number of drainage risers and the design characteristics of the building, auxiliary vent pipes are introduced, and the elevation and path of the vent pipe are set to avoid conflicts with other systems.

[0032] As a preferred method, the flow state of rainwater and domestic wastewater under different working conditions is simulated in the simulation system, the operation during the peak water use period is simulated, and the method for evaluating the risk of overload of the drainage pipeline is as follows:

[0033] Use drainage simulation software, import BIM model data, set rainwater inflow according to the designed rainstorm intensity curve, simulate the process of rainwater entering the pipe through the roof rainwater inlet and surface drainage outlet, set the peak flow of daily life wastewater, and analyze the dynamic changes of wastewater flowing into the drainage pipe;

[0034] Simulate the pipe's capacity to drain at different time periods, including:

[0035] Normal working conditions: normal water use and slight rainfall;

[0036] Peak conditions: peak water usage, heavy rain and extreme conditions;

[0037] Monitor the pressure and water level of each section of the pipe in the drainage system based on dynamic simulation data, evaluate the risks of full flow, half-full flow and negative pressure in the pipe, check the overload points of the pipeline, locate the bottleneck where the flow cannot pass, and analyze the backflow and overflow phenomena that may be caused by overload.

[0038] As a preferred method, the plan layout and section drawings of the drainage system are automatically generated based on the BIM model, detailed drawings of each node are generated, a bill of materials is generated according to the model, including pipe specifications, lengths, types and quantities of accessories, and real-time market prices are obtained through data links. The method of automatically estimating material costs is as follows:

[0039] Automatically generate drainage system plan for each floor of the building based on model data, and automatically generate cross-section diagram based on the elevation and slope of the pipeline to display the longitudinal layout of the pipeline and the node connection relationship;

[0040] Identify pipeline connection points through BIM models and automatically generate node details, including pipe type, connection method, precise location and size;

[0041] Automatically extract drainage system design data from the BIM model, including:

[0042] Pipeline specifications: pipe diameter, material;

[0043] Pipeline length: The total length of each specification of pipeline is counted by region;

[0044] Accessory types and quantities: valves, manholes, tees, elbows;

[0045] Through the API data interface, the real-time market database is linked to obtain the current prices of materials, pipes and accessories. Based on the material list and market prices, the cost of each material is automatically calculated, and standard construction quotas are introduced to calculate labor, equipment and construction costs based on the project volume.

[0046] As a preferred method, the consistency of the data is compared between the BIM model and the measured data at the construction site, sensors are installed at key nodes, the operation status of the pipeline is monitored in real time, and the maintenance or replacement information is updated to the BIM model as follows:

[0047] Build a complete BIM model including pipelines, nodes, and equipment, embed the design information of each key node, including location, size, material, and number, and import the pipeline maintenance cycle, specification parameters, design flow, and drainage capacity as additional attributes into the BIM model;

[0048] Install multiple types of sensors at key inspection wells, pump stations, elbows, and branch pipe interfaces, including:

[0049] Flow sensor: monitors pipeline drainage flow;

[0050] Pressure sensor: monitors pressure changes and identifies blockage risks;

[0051] Water quality sensor: detects the concentration of pollutants in wastewater;

[0052] Temperature and vibration sensors: monitor pipeline operating environment;

[0053] Realize real-time sensor data collection and transmission through the IoT platform, unify the data format into a standard format compatible with the BIM model, bind the sensor data to the corresponding pipeline or node in the BIM model, and achieve data matching through the unique identifier RFID or QR code;

[0054] Combined with the set threshold range, abnormal situations are automatically detected:

[0055] Abnormal reduction in flow: there may be a blockage or leakage;

[0056] Abnormal increase in pressure: partial obstruction may occur;

[0057] Water quality exceeds the standard: indicating that there may be external pollution sources;

[0058] Mark the operating status of each node in the BIM model interface in the form of color or icon;

[0059] Automatically update the operating status in the BIM model based on real-time sensor data, including: updating pipeline flow, pressure, water quality attributes, marking nodes and pipe sections for repair or replacement;

[0060] The saved sensor monitoring historical operation data is compared with the design data in the BIM model to form a complete pipeline operation history archive.

[0061] Another technical problem to be solved by the present invention is to provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a BIM-based building drainage pipeline layout system and method as described above is implemented.

[0062] Another technical problem to be solved by the present invention is to provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, a system and method for arranging building drainage pipelines based on BIM is implemented.

[0063] The beneficial effects of the present invention are:

[0064] Accurate data of building sites or structures can be obtained through laser scanners or drones to avoid manual measurement errors and improve the initial accuracy of BIM models. The model covers information such as floor slabs, walls, columns, and equipment layout, realizing multi-disciplinary collaborative design and improving the integrity and accuracy of drainage system design. Based on national or regional drainage design specifications, parameters such as slope, pipe diameter, and flow rate are automatically set to ensure the standardization and rationality of the design. The conflict detection function of BIM software can automatically detect cross-conflicts between pipelines and other systems, reducing the cost of design changes and rework during construction. Through BIM's wiring tools and simulation, more efficient and reasonable pipeline layout plans can be designed to avoid common problems such as insufficient slope and node omissions. Sensors are used to monitor flow, pressure, water quality and other parameters in real time to quickly identify abnormal problems in pipeline operation (such as blockage, leakage or pollution). The information fed back by the sensors is directly updated to the BIM model so that it always reflects the actual operation status, which is convenient for real-time management. Sensor data is combined with set thresholds to achieve automatic early warning, helping maintenance teams The team can deal with the problem in time before it becomes serious; simulate different working conditions (such as rainy season or peak water usage) in the BIM model, evaluate the performance of the pipeline design, discover overload risks in advance and optimize the design, and provide a scientific basis for system optimization by simulating and analyzing the pressure points and bottlenecks of the pipeline layout; automatically generate a material list based on the BIM model, link market prices in real time, accurately estimate material costs, avoid budget overruns, and reduce the frequency of emergency repairs through real-time monitoring by sensors, and reduce long-term operating costs through predictive maintenance; ensure the consistency of the construction process with the design and improve construction quality by comparing the BIM model with the actual measured data on the construction site; the dynamically updated BIM model records the maintenance history and replacement information, and provides a complete archive for subsequent maintenance; automatically generate plan views, cross-section views and detailed drawings based on the BIM model, simplify the construction drawing production process, and improve the accuracy of the drawings; real-time monitoring combined with automatic maintenance plans reduces the system failure rate and extends the service life of the drainage system; historical monitoring data provides data support for pipeline layout improvements and sensor deployment optimization, and gradually improves system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a flow chart of the building drainage pipeline layout system based on BIM of the present invention. DETAILED DESCRIPTION

[0066] The principles and features of the present invention are described below, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described more specifically by way of example in the following paragraphs. According to the following description and claims, the advantages and features of the present invention will become clearer.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0068] Example

[0069] A building drainage pipeline layout system based on BIM, including:

[0070] Data acquisition and modeling module, which is used to obtain on-site environmental data through laser scanning and drone aerial photography technology, use parameterized component libraries to build various types of drainage systems, and embed national and regional drainage design specifications;

[0071] Drainage simulation module, which is used to integrate fluid simulation software, optimize pipeline layout, simulate the operation of drainage system in different scenarios, and evaluate design feasibility;

[0072] Design module, a cloud-based collaborative platform that automatically generates standardized construction drawings from BIM models for real-time data sharing and version management;

[0073] Data management and standardization module, which is used to adopt IFC and COBie standardized data formats, make cross-software compatible, establish model version management mechanism, and have built-in rule checking tools to automatically verify the integrity and accuracy of model data;

[0074] The post-operation and maintenance module is used to update the operating data in the BIM model in real time through IoT sensors, set up a simplified operation interface, generate problem location and maintenance solutions on a visual interface, and predict potential system failures and provide early warnings based on AI and big data analysis.

[0075] Based on the field data of laser scanning and drone technology, a high-precision BIM model is constructed to avoid manual measurement errors, embed drainage design specifications, automatically check whether the design is compliant, and reduce later modifications; simulation optimizes pipeline layout to avoid problems such as insufficient slope and cross-conflict, improve drainage efficiency, automatically find conflicts between pipelines and other structures, and reduce construction rework rate; multi-scenario evaluation, early discovery of design bottlenecks, optimization of drainage pipeline capacity, and reduction of system overload risks, optimization of system configuration through simulation results, and reduction of hidden dangers in operation; a list of materials is generated according to the model and linked to real-time market prices, accurate control of material budgets, and real-time monitoring and predictive maintenance to reduce sudden failures and emergency repair costs; automatically generated standardized drawings improve construction efficiency, ensure consistency with the design, and update real-time maintenance information to the BIM model for later management; real-time monitoring of operating status through IoT sensors, timely detection of anomalies, and optimization of system operation and maintenance strategies combined with AI analysis and historical data; standardized formats ensure smooth collaboration between different software and departments, throughout the entire life cycle of design, construction, operation and maintenance, and maximize data value.

[0076] A method for arranging building drainage pipelines based on BIM, comprising:

[0077] Use laser scanners or drones to obtain data on the existing site or structure of the building, import the BIM model of the building structure, including floor slabs, walls, columns and equipment layout information, and set the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, based on national or regional drainage design specifications;

[0078] Call standard drainage pipes, inspection wells, and cleaning port components in the BIM component library, use the wiring tools of the BIM software to arrange the paths of horizontal and vertical pipes, set the pipe slope according to the specification requirements, and automatically adjust the elevation of each node and generate layout data. Use the conflict detection function of the BIM software to check the intersection conflict between the drainage pipe and other systems;

[0079] Arrange inspection wells according to the generated layout data, arrange cleaning ports at bends and slope changes, design the top vent pipe of the main riser, and introduce auxiliary vent pipes according to the field data;

[0080] The simulation system simulates the flow state of rainwater and domestic wastewater under different working conditions, simulates the operation during the peak water consumption period, and evaluates the risk of drainage pipeline overload;

[0081] Automatically generate the plan layout and section drawings of the drainage system based on the BIM model, generate detailed drawings of each node, generate a bill of materials based on the model, including pipe specifications, lengths, types and quantities of accessories, obtain real-time market prices through data links, and automatically estimate material costs;

[0082] By comparing the consistency of the BIM model with the actual measured data at the construction site, sensors are installed at key nodes to monitor the pipeline operation status in real time, and the maintenance or replacement information is updated to the BIM model.

[0083] Use laser scanners and drones to obtain 3D data of existing building sites or structures, import building structure data (including floor slabs, walls, columns, equipment layout, etc.) into the BIM model, and set initial design parameters such as slope, pipe diameter, flow rate, etc. based on national or regional drainage design specifications to ensure that the design meets the specifications; call standard drainage pipes, inspection wells, cleaning ports and other components in the BIM component library, use BIM software wiring tools to complete the layout of horizontal pipes and risers, set slopes and elevations that meet the specifications, and use conflict detection functions to discover and resolve conflicts between drainage pipes and other building systems; set cleaning ports at key points such as turns and slope changes , design a top vent pipe for the main riser, and introduce an auxiliary vent pipe to optimize the exhaust function; simulate the flow state of rainwater and domestic wastewater under various working conditions (such as peak water usage), evaluate the overload risk of drainage pipes, and optimize the system design to improve operational reliability; automatically generate a material list based on the BIM model, including pipe specifications, lengths, types and quantities of accessories, and link data to real-time market prices to automatically estimate material costs and optimize the budget; use the BIM model to generate construction drawings (such as plan drawings, cross-section drawings, and node details), install sensors to monitor the operating status of key nodes, and update maintenance or replacement information to the BIM model to achieve real-time maintenance management.

[0084] Use laser scanners or drones to obtain data on the existing site or structure of the building, import the BIM model of the building structure, including floor slabs, walls, columns and equipment layout information, and set the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, based on national or regional drainage design specifications:

[0085] Use laser scanners to collect 3D point cloud data of existing buildings or sites. For large or complex sites, use drones to capture high-resolution images and data.

[0086] Use software ReCap and CloudCompare to clean up noise and redundant data from point cloud data, use Pix4D or similar software to generate orthophotos and digital surface models for aerial images, import point cloud or terrain data into BIM software Revit and ArchiCAD, and combine with existing building design models;

[0087] Use local or national drainage specifications as the design basis, determine the slope requirements, and select the appropriate pipe diameter according to the design flow and drainage type.

[0088] Laser scanning provides high-precision three-dimensional point cloud data with a small error range, which can reflect the actual site and building details. UAVs have a wide coverage range and fast acquisition speed, and are suitable for site modeling of large-scale and complex terrain. Automated software quickly cleans and optimizes point cloud data to reduce human errors. Orthophotos and DSM generated by aerial photography are convenient for terrain modeling and drainage design analysis. The BIM model is highly matched with the actual site data to ensure that the design parameters are true and reliable, and the slope, pipe diameter and flow rate are automatically calculated according to the specifications, which simplifies manual calculations and improves design accuracy. A unified BIM platform is used to integrate multi-source data to reduce cross-tool switching time. Automated tools such as wiring and conflict detection functions improve the efficiency of drainage pipeline design. It accurately reflects the on-site conditions and reduces construction rework caused by design discrepancies with the site. Data runs through the entire process from design to construction, and the data for later operation and maintenance is easily updated, providing real-time monitoring and maintenance suggestions to improve system reliability.

[0089] Call standard drainage pipes, inspection wells, and cleaning port components in the BIM component library, use the wiring tools of the BIM software to arrange the paths of horizontal and vertical pipes, set the pipeline slope according to the specification requirements, and automatically adjust the elevation of each node and generate layout data. Use the conflict detection function of the BIM software to check the cross-conflict between the drainage pipe and other systems. The method is as follows:

[0090] Import the building information BIM model, which contains information on the building floor, walls, columns and equipment layout, and select drainage system components that meet the design specifications in the BIM component library;

[0091] Use the pipeline layout tool of BIM software to draw the horizontal pipeline path, set the slope, and avoid the key structure of the building. Use BIM software to establish the vertical drainage path and automatically adjust the connection nodes between the vertical pipe and the horizontal pipe;

[0092] BIM software is used to perform conflict detection, including cross-system conflicts and internal conflicts. Conflict reports are automatically generated, conflict locations are marked, and pipeline layouts or node elevations are adjusted based on the conflict reports.

[0093] The BIM component library provides standard components that meet the specifications, avoids errors in manual design, automatically adjusts slopes and elevations, and ensures that drainage design meets actual needs; uses BIM software's wiring tools to automatically generate pipe paths, reducing manual drawing workload; conflict detection functions quickly identify problems and generate reports, greatly shortening design optimization time; accurately reflects actual building conditions, reduces rework during construction, discovers and resolves cross-system conflicts in advance, and avoids problems during the construction phase; data output is clear, including detailed information such as paths, slopes, elevations, etc. Construction personnel can directly operate according to the design plan, and drainage layout optimization reduces adjustment time during construction; design data is seamlessly connected with construction and operation and maintenance. In later maintenance, drainage problems can be quickly located based on the BIM model to reduce maintenance costs; BIM simulation optimizes drainage pipe layout, improves system operation efficiency, reduces resource waste, and improves the environmental friendliness of design and construction.

[0094] According to the generated layout data, layout inspection wells, and layout cleaning ports at turns and slope changes. Design the top vent pipe of the main riser. The method of introducing auxiliary vent pipes according to field data is as follows:

[0095] According to the designed flow and drainage volume, select the appropriate inspection well specifications, and set up inspection wells at the turns, slope changes, pipe diameter changes and confluence points of the drainage pipe;

[0096] Use BIM software to insert the inspection well components into the corresponding positions and automatically connect them with the pipeline nodes;

[0097] Call the standard cleaning port component in the BIM software and set it at key nodes. Set cleaning ports at the starting point, end point and turning point of the horizontal drainage pipe. For pipe sections with large slope changes, increase the density of cleaning port layout. Use the pipeline slope analysis tool to evaluate the flow of sewage in the pipe and adjust the cleaning port position.

[0098] Using the pipe layout function of BIM software, the vent pipe is arranged inside the wall or in the pipe well, and the main vent pipe is set on the top of the main drainage riser to ensure the pressure balance inside the pipe. According to the number of drainage risers and the design characteristics of the building, auxiliary vent pipes are introduced, and the elevation and path of the vent pipe are set to avoid conflicts with other systems.

[0099] The drainage system is arranged by calling the BIM component library and automated tools to reduce manual design time. Slope analysis, conflict detection and other functions optimize the design process and reduce the error rate. Reasonable setting of inspection wells and cleaning ports improves the convenience of drainage system maintenance and reduces the risk of blockage. The ventilation pipe design ensures pipeline pressure balance and avoids the impact of negative pressure on drainage performance. The BIM model accurately reflects site conditions and reduces the probability of rework during construction. The layout of inspection wells and cleaning ports is optimized to facilitate later inspection and maintenance. The data output contains detailed layout information, so construction personnel can quickly construct according to the design plan. The ventilation pipe path optimization reduces the adjustment workload during construction. The BIM model is combined with drainage design data to provide reliable data support for later operation and maintenance. The BIM visualization tool can quickly locate the maintenance nodes of the pipeline system. BIM simulation analysis improves the operating efficiency of the drainage system and reduces resource waste. Digital design methods reduce the environmental impact of construction projects.

[0100] The simulation system simulates the flow state of rainwater and domestic wastewater under different working conditions, simulates the operation during the peak water use period, and evaluates the risk of drainage pipeline overload as follows:

[0101] Use drainage simulation software, import BIM model data, set rainwater inflow according to the designed rainstorm intensity curve, simulate the process of rainwater entering the pipe through the roof rainwater inlet and surface drainage outlet, set the peak flow of daily life wastewater, and analyze the dynamic changes of wastewater flowing into the drainage pipe;

[0102] Simulate the pipe's capacity to drain at different time periods, including:

[0103] Normal working conditions: normal water use and slight rainfall;

[0104] Peak conditions: peak water usage, heavy rain and extreme conditions;

[0105] Monitor the pressure and water level of each section of the pipe in the drainage system based on dynamic simulation data, evaluate the risks of full flow, half-full flow and negative pressure in the pipe, check the overload points of the pipeline, locate the bottleneck where the flow cannot pass, and analyze the backflow and overflow phenomena that may be caused by overload.

[0106] Optimize pipe network design based on simulation results to ensure that the drainage system can operate efficiently under different working conditions, locate weak links in the design, and adjust the diameter, slope or layout of the drainage pipes; discover bottlenecks in the drainage system in advance to avoid overflow or backflow caused by unreasonable design, evaluate operating performance under extreme conditions, and enhance the system's risk resistance; dynamic simulation data provides a scientific basis for design optimization and subsequent operation adjustments, and data visualization facilitates collaboration between designers and construction teams to quickly formulate improvement measures; discover problems in the design stage through simulation analysis, reduce rework in the construction stage, optimize system layout and pipeline specifications, and reduce engineering materials and construction costs; output detailed simulation reports, including the flow, pressure and risk points of each section of the pipeline. During later maintenance, simulation data can be used to quickly locate problem areas and reduce maintenance time; simulation analysis reduces resource waste, avoids system failures and environmental impacts caused by design defects, optimizes drainage system operation efficiency, and reduces operating costs.

[0107] Based on the automatic generation of the plan layout and section drawings of the drainage system in the BIM model, detailed drawings of each node are generated, and a bill of materials is generated according to the model, including pipe specifications, lengths, types and quantities of accessories. Real-time market prices are obtained through data links. The method for automatically estimating material costs is as follows:

[0108] Automatically generate drainage system plan for each floor of the building based on model data, and automatically generate cross-section diagram based on the elevation and slope of the pipeline to display the longitudinal layout of the pipeline and the node connection relationship;

[0109] Identify pipeline connection points through BIM models and automatically generate node details, including pipe type, connection method, precise location and size;

[0110] Automatically extract drainage system design data from the BIM model, including:

[0111] Pipeline specifications: pipe diameter, material;

[0112] Pipeline length: The total length of each specification of pipeline is counted by region;

[0113] Accessory types and quantities: valves, manholes, tees, elbows;

[0114] Through the API data interface, the real-time market database is linked to obtain the current prices of materials, pipes and accessories. Based on the material list and market prices, the cost of each material is automatically calculated, and standard construction quotas are introduced to calculate labor, equipment and construction costs based on the project volume.

[0115] Automatically generate the plan, section and node details of the drainage system based on the BIM model, avoiding the tedious process of traditional manual drawing and improving the accuracy and efficiency of the design. When the BIM model changes (such as changes in the direction and specifications of the pipes), the relevant drawings and material lists are automatically updated to ensure that the design is always consistent with the actual situation and reduce human errors. By accurately extracting the pipe length, type and quantity of accessories, it can effectively avoid material waste caused by unreasonable design. It can automatically generate a detailed material list according to the actual needs of the drainage system, including the type and quantity of pipes and accessories, to reduce omissions in the construction process. Through real-time market data connection, the BIM system can instantly obtain the current market price of pipes and accessories and automatically calculate the material cost, which not only saves the time of manual statistics, but also provides more accurate budget estimates, helping Project managers can conduct more reasonable cost control in the early stages of a project, using standard construction quotas to automatically calculate the costs of labor, equipment, and construction, thus avoiding errors caused by traditional manual estimates and further improving the economic efficiency of the project. In multi-disciplinary collaborative design, the BIM model, as a unified information platform, can ensure that architects, structural engineers, mechanical and electrical engineers, and other parties work on the same platform, reducing communication barriers and improving collaborative efficiency. When deviations or changes occur during the construction process, the design drawings and material lists can be updated in real time to ensure construction progress and quality control. Automatically generated node details and construction drawings can provide clear and accurate guidance for construction personnel, reducing construction errors caused by unclear understanding of the drawings. Combined with the material list and construction quotas, the construction progress and budget situation can be tracked in real time to avoid budget overruns or delays.

[0116] The method of comparing the consistency of the BIM model with the measured data at the construction site, installing sensors at key nodes, monitoring the operation status of the pipeline in real time, and updating the maintenance or replacement information to the BIM model is as follows:

[0117] Build a complete BIM model including pipelines, nodes, and equipment, embed the design information of each key node, including location, size, material, and number, and import the pipeline maintenance cycle, specification parameters, design flow, and drainage capacity as additional attributes into the BIM model;

[0118] Install multiple types of sensors at key inspection wells, pump stations, elbows, and branch pipe interfaces, including:

[0119] Flow sensor: monitors pipeline drainage flow;

[0120] Pressure sensor: monitors pressure changes and identifies blockage risks;

[0121] Water quality sensor: detects the concentration of pollutants in wastewater;

[0122] Temperature and vibration sensors: monitor pipeline operating environment;

[0123] Realize real-time sensor data collection and transmission through the IoT platform, unify the data format into a standard format compatible with the BIM model, bind the sensor data to the corresponding pipeline or node in the BIM model, and achieve data matching through the unique identifier RFID or QR code;

[0124] Combined with the set threshold range, abnormal situations are automatically detected:

[0125] Abnormal reduction in flow: there may be a blockage or leakage;

[0126] Abnormal increase in pressure: partial obstruction may occur;

[0127] Water quality exceeds the standard: indicating that there may be external pollution sources;

[0128] Mark the operating status of each node in the BIM model interface in the form of color or icon;

[0129] Automatically update the operating status in the BIM model based on real-time sensor data, including: updating pipeline flow, pressure, water quality attributes, marking nodes and pipe sections for repair or replacement;

[0130] The saved sensor monitoring historical operation data is compared with the design data in the BIM model to form a complete pipeline operation history archive.

[0131] By using sensors to monitor the flow, pressure, water quality and other parameters of the pipeline in real time, it is possible to detect abnormal conditions in the pipeline system, such as blockage, leakage, pollution, etc., and issue warnings in a timely manner. The operating status of the pipeline can be updated in real time through the BIM system, and managers can view the real-time operating status of the pipeline on the BIM interface at any time, so as to facilitate timely response measures. The data collected in real time by sensors can accurately determine which pipelines or nodes have failed, avoiding the uncertainty of traditional manual inspection methods. With the help of data-driven analysis, unnecessary maintenance or replacement work can be avoided, and the utilization rate of maintenance resources can be improved. The system will automatically update the operating status of the pipeline in the BIM model to form a complete historical data archive for later analysis and decision-making. The real-time monitoring system can issue warnings before abnormalities occur in the pipeline, take preventive measures, avoid sudden failures, and extend the service life of the pipeline system. Through the continuous accumulation of data, the system can accurately determine the operating status of the pipeline. BIM can help optimize the design, operation and maintenance strategies of pipelines by analyzing the trend of the status. Accurate fault detection and early warning can reduce unnecessary repair and replacement work, and reduce the operation and maintenance costs of pipeline systems. The combination of BIM and sensor data can help managers formulate reasonable operation and maintenance budgets and plans by understanding the operation status and maintenance needs of pipeline systems in real time. After the BIM model is combined with sensor data, all relevant departments (such as design, construction, operation and maintenance, etc.) can share real-time data, work together, and improve decision-making efficiency. BIM provides an integrated platform, and all pipeline design, construction, and operation data can be centrally managed to avoid data islands. The historical data monitored by sensors is combined with the design data of the BIM model to form a complete operation archive of the pipeline system, which is helpful for long-term tracking of pipeline health. Through the analysis of historical operation data, the design and management plans of the pipeline system can be optimized to improve the operation results of future projects.

[0132] This embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the BIM-based building drainage pipeline layout system and method as described above are implemented.

[0133] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the BIM-based building drainage pipeline layout system and method as described above are implemented.

[0134] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0135] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above.

[0136] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A BIM-based building drainage pipeline layout system, characterized in that: Included are: Data acquisition and modeling module, which is used to obtain on-site environmental data through laser scanning and drone aerial photography technology, use parameterized component libraries to build various types of drainage systems, and embed national and regional drainage design specifications; Drainage simulation module, which is used to integrate fluid simulation software, optimize pipeline layout, simulate the operation of drainage system in different scenarios, and evaluate design feasibility; Design module, a cloud-based collaborative platform that automatically generates standardized construction drawings from BIM models for real-time data sharing and version management; Data management and standardization module, which is used to adopt IFC and COBie standardized data formats, make cross-software compatible, establish model version management mechanism, and have built-in rule checking tools to automatically verify the integrity and accuracy of model data; The post-operation and maintenance module is used to update the operating data in the BIM model in real time through IoT sensors, set up a simplified operation interface, generate problem location and maintenance solutions on a visual interface, and predict potential system failures and provide early warnings based on AI and big data analysis.

2. A method for arranging building drainage pipelines based on BIM, characterized in that: Including; Use laser scanners or drones to obtain data on the existing site or structure of the building, import the BIM model of the building structure, including floor slabs, walls, columns and equipment layout information, and set the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, based on national or regional drainage design specifications; Call standard drainage pipes, inspection wells, and cleaning port components in the BIM component library, use the wiring tools of the BIM software to arrange the paths of horizontal and vertical pipes, set the pipe slope according to the specification requirements, and automatically adjust the elevation of each node and generate layout data. Use the conflict detection function of the BIM software to check the intersection conflict between the drainage pipe and other systems; Arrange inspection wells according to the generated layout data, arrange cleaning ports at bends and slope changes, design the top vent pipe of the main riser, and introduce auxiliary vent pipes according to the field data; The simulation system simulates the flow state of rainwater and domestic wastewater under different working conditions, simulates the operation during the peak water consumption period, and evaluates the risk of drainage pipeline overload; Automatically generate the plan layout and section drawings of the drainage system based on the BIM model, generate detailed drawings of each node, generate a bill of materials based on the model, including pipe specifications, lengths, types and quantities of accessories, obtain real-time market prices through data links, and automatically estimate material costs; By comparing the consistency of the BIM model with the actual measured data at the construction site, sensors are installed at key nodes to monitor the pipeline operation status in real time, and the maintenance or replacement information is updated to the BIM model.

3. The method for arranging building drainage pipelines based on BIM according to claim 2 is characterized in that: Use laser scanners or drones to obtain data on the existing site or structure of the building, import the BIM model of the building structure, including floor slabs, walls, columns and equipment layout information, and set the initial parameters of the pipeline layout, such as slope, pipe diameter, and flow rate, based on national or regional drainage design specifications: Use laser scanners to collect 3D point cloud data of existing buildings or sites. For large or complex sites, use drones to capture high-resolution images and data. Use software ReCap and CloudCompare to clean up noise and redundant data from point cloud data, use Pix4D or similar software to generate orthophotos and digital surface models for aerial images, import point cloud or terrain data into BIM software Revit and ArchiCAD, and combine with existing building design models; Use local or national drainage specifications as the design basis, determine the slope requirements, and select the appropriate pipe diameter according to the design flow and drainage type.

4. The method for arranging building drainage pipelines based on BIM according to claim 3 is characterized in that: Call standard drainage pipes, inspection wells, and cleaning port components in the BIM component library, use the wiring tools of the BIM software to arrange the paths of horizontal and vertical pipes, set the pipeline slope according to the specification requirements, and automatically adjust the elevation of each node and generate layout data. Use the conflict detection function of the BIM software to check the cross-conflict between the drainage pipe and other systems. The method is as follows: Import the building information BIM model, which contains information on the building floor, walls, columns and equipment layout, and select drainage system components that meet the design specifications in the BIM component library; Use the pipeline layout tool of BIM software to draw the horizontal pipeline path, set the slope, and avoid the key structure of the building. Use BIM software to establish the vertical drainage path and automatically adjust the connection nodes between the vertical pipe and the horizontal pipe; BIM software is used to perform conflict detection, including cross-system conflicts and internal conflicts. Conflict reports are automatically generated, conflict locations are marked, and pipeline layouts or node elevations are adjusted based on the conflict reports.

5. The method for arranging building drainage pipelines based on BIM according to claim 4 is characterized in that: According to the generated layout data, layout inspection wells, and layout cleaning ports at turns and slope changes. Design the top vent pipe of the main riser. The method of introducing auxiliary vent pipes according to field data is as follows: According to the designed flow and drainage volume, select the appropriate inspection well specifications, and set up inspection wells at the turns, slope changes, pipe diameter changes and confluence points of the drainage pipe; Use BIM software to insert the inspection well components into the corresponding positions and automatically connect them with the pipeline nodes; Call the standard cleaning port component in the BIM software and set it at key nodes. Set cleaning ports at the starting point, end point and turning point of the horizontal drainage pipe. For pipe sections with large slope changes, increase the density of cleaning port layout. Use the pipeline slope analysis tool to evaluate the flow of sewage in the pipe and adjust the cleaning port position. Using the pipe layout function of BIM software, the vent pipe is arranged inside the wall or in the pipe well, and the main vent pipe is set on the top of the main drainage riser to ensure the pressure balance inside the pipe. According to the number of drainage risers and the design characteristics of the building, auxiliary vent pipes are introduced, and the elevation and path of the vent pipe are set to avoid conflicts with other systems.

6. The method for arranging building drainage pipelines based on BIM according to claim 5, characterized in that: The simulation system simulates the flow state of rainwater and domestic wastewater under different working conditions, simulates the operation during the peak water use period, and evaluates the risk of drainage pipeline overload as follows: Use drainage simulation software, import BIM model data, set rainwater inflow according to the designed rainstorm intensity curve, simulate the process of rainwater entering the pipe through the roof rainwater inlet and surface drainage outlet, set the peak flow of daily life wastewater, and analyze the dynamic changes of wastewater flowing into the drainage pipe; Simulate the pipe's capacity to drain at different time periods, including: Normal working conditions: normal water use and slight rainfall; Peak conditions: peak water usage, heavy rain and extreme conditions; Monitor the pressure and water level of each section of the pipe in the drainage system based on dynamic simulation data, evaluate the risks of full flow, half-full flow and negative pressure in the pipe, check the overload points of the pipeline, locate the bottleneck where the flow cannot pass, and analyze the backflow and overflow phenomena that may be caused by overload.

7. The method for arranging building drainage pipelines based on BIM according to claim 6, characterized in that: Based on the automatic generation of the plan layout and section drawings of the drainage system in the BIM model, detailed drawings of each node are generated, and a bill of materials is generated according to the model, including pipe specifications, lengths, types and quantities of accessories. Real-time market prices are obtained through data links. The method for automatically estimating material costs is as follows: Automatically generate drainage system plan for each floor of the building based on model data, and automatically generate cross-section diagram based on the elevation and slope of the pipeline to display the longitudinal layout of the pipeline and the node connection relationship; Identify pipeline connection points through BIM models and automatically generate node details, including pipe type, connection method, precise location and size; Automatically extract drainage system design data from the BIM model, including: Pipeline specifications: pipe diameter, material; Pipeline length: The total length of each specification of pipeline is counted by region; Accessory types and quantities: valves, manholes, tees, elbows; Through the API data interface, the real-time market database is linked to obtain the current prices of materials, pipes and accessories. Based on the material list and market prices, the cost of each material is automatically calculated, and standard construction quotas are introduced to calculate labor, equipment and construction costs based on the project volume.

8. The method for arranging building drainage pipelines based on BIM according to claim 7, characterized in that: The method of comparing the consistency of the BIM model with the measured data at the construction site, installing sensors at key nodes, monitoring the operation status of the pipeline in real time, and updating the maintenance or replacement information to the BIM model is as follows: Build a complete BIM model including pipelines, nodes, and equipment, embed the design information of each key node, including location, size, material, and number, and import the pipeline maintenance cycle, specification parameters, design flow, and drainage capacity as additional attributes into the BIM model; Install multiple types of sensors at key inspection wells, pump stations, elbows, and branch pipe interfaces, including: Flow sensor: monitors pipeline drainage flow; Pressure sensor: monitors pressure changes and identifies blockage risks; Water quality sensor: detects the concentration of pollutants in wastewater; Temperature and vibration sensors: monitor pipeline operating environment; Realize real-time sensor data collection and transmission through the IoT platform, unify the data format into a standard format compatible with the BIM model, bind the sensor data to the corresponding pipeline or node in the BIM model, and achieve data matching through the unique identifier RFID or QR code; Combined with the set threshold range, abnormal situations are automatically detected: Abnormal reduction in flow: there may be a blockage or leakage; Abnormal increase in pressure: partial obstruction may occur; Water quality exceeds the standard: indicating that there may be external pollution sources; Mark the operating status of each node in the BIM model interface in the form of color or icon; Automatically update the operating status in the BIM model based on real-time sensor data, including: updating pipeline flow, pressure, water quality attributes, marking nodes and pipe sections for repair or replacement; The saved sensor monitoring historical operation data is compared with the design data in the BIM model to form a complete pipeline operation history archive.

9. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for arranging building drainage pipelines based on BIM as described in any one of claims 2 to 8 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the BIM-based building drainage pipeline layout method as described in any one of claims 2 to 8 is implemented.

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