A method for renovating old heating stations based on point cloud scanning

Abstract

The present invention discloses a method for renovating an old heating station based on point cloud scanning, comprising: step S1: obtaining cloud data of an old heating station; step S2: preprocessing the obtained point cloud data; step S3: importing the point cloud data into SP3D software, modeling the equipment and pipelines in key areas, and adding attribute information; step S4: importing the point cloud data into 3dMax software, modeling non-key equipment, facilities, and buildings to form a real-life model; step S5: importing the real-life model in step S4 into the model with attribute information in step S3 to form a complete three-dimensional model of the entire station; step S6: on the basis of the complete three-dimensional model formed in step S5, designing the renovation of the old heating station to form a design plan. The implementation of the present invention reduces the manual work and time consumption of on-site survey and measurement and restoration of data, improves the accuracy of the design, can reduce the time spent in procurement and construction, and reduces the error rate.

Description

Technical Field

[0001] The present invention relates to the field of heating station reconstruction, and in particular to a method for reconstructing an old heating station based on point cloud scanning. Background Art

[0002] The heating station has the characteristics of complex process flow, many equipment and facilities, and crisscrossing pipelines. The heating station that was built a long time ago has been renovated many times, and the basic data is missing. In order to ensure the accuracy of the renovation design, the designers must conduct multiple field surveys, master the on-site data and conditions, and reconstruct the data, which is time-consuming and laborious. Traditional on-site surveying and mapping technology cannot meet the large-scale and detailed survey needs of the project. When it is necessary to partially dismantle and build new equipment and pipelines, the statistical deviation of the workload is large, and the connection and collision of new and old equipment and facilities cannot be accurately predicted, resulting in errors, rework, and material waste in the design, procurement, and construction processes. Summary of the invention

[0003] The purpose of the present invention is to provide a method suitable for quickly rebuilding basic data when renovating old heating stations, guiding and directly using it for renovation design, improving work efficiency and design accuracy, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A method for renovating an old heating station based on point cloud scanning comprises: step S1: acquiring cloud data of an old heating station; step S2: preprocessing the acquired point cloud data; step S3: importing the point cloud data into SP3D software, modeling equipment and pipelines in key areas, and adding attribute information; step S4: importing the point cloud data into 3dMax software, modeling non-key equipment, facilities, and buildings to form a real-scene model; step S5: importing the real-scene model in step S4 into the model with attribute information in step S3 to form a complete three-dimensional model of the entire station; step S6: based on the complete three-dimensional model formed in step S5, designing the renovation of the old heating station to form a design plan.

[0006] Furthermore, step S2 includes: performing registration, filtering, denoising, splicing, and classification processing on the point cloud data to form station scanning point cloud data and a panoramic image.

[0007] Furthermore, the step S3 includes: capturing, cutting, extracting pipeline information and equipment information in key areas through point cloud scanning, and adding attribute information.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The present invention obtains point cloud data and panoramic images of the complex status of the renovated station through point cloud scanning, replacing on-site investigation and large-scale data measurement and restoration work. Through point cloud model processing and joint modeling of multiple software, a three-dimensional model of the station that meets the renovation requirements and digitization requirements is quickly established. On this basis, accurate design and engineering quantity statistics of the renovated station are achieved, manpower and time investment is reduced, design cycle is shortened, design accuracy and quality are improved, deviations and rework in procurement and construction are reduced, construction progress is accelerated, and digital results can be delivered. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a flow chart of a method for renovating an old heating station based on point cloud scanning according to the present invention; DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0012] A method for renovating an old heating station based on point cloud scanning comprises: step S1: acquiring cloud data of an old heating station; step S2: preprocessing the acquired point cloud data; specifically, performing registration, filtering, denoising, splicing, classification and other processing on the acquired point cloud data to form station scanning point cloud data and panoramic images, and then importing the processed point cloud data into editing and processing software, and combining color point clouds and panoramic images to complete data measurement, field survey, station panoramic display, renovation plan planning and design and other operations; step S3: importing the point cloud data into SP3D software, For the pipelines and equipment involved in the renovation project, the pipeline centerline and equipment size are captured, cut, and extracted through point cloud, and the pipeline and equipment models are established, and attribute information is added; attribute information refers to equipment position number, nozzle specification, pressure level, flange type, etc., and pipeline attribute information refers to pipeline specification, pressure level, medium attribute, material, pipe fitting specification, material level, etc. This information is used to match the corresponding attributes of pipelines and flanges in 3D factory modeling, and perform 3D piping, otherwise an error will be reported; and when the final drawing or display is completed, the attribute information is used to display or automatically count the workload of demolition and modification. Step S4: Import the point cloud data into 3dMax software, model non-critical equipment, facilities, buildings, etc., extract point, line, and surface coordinate information through point cloud data, establish a geometric entity model without attribute information, change the material through mapping, and obtain a real scene model; Step S5: Import the real scene model in step S4 into the model with attribute information in step S3 to form a complete 3D model of the entire station; After the two software modeling is completed, merge them in SP3D. The steps to import 3DMax model into SP3D are as follows: 1. After 3DMax modeling is completed, export the model file in dxf format and convert it into zvf format through the Eagle SPIOP software; 2. Reference the converted zvf model file into SP3D through the ProjectManagement administrator module of SP3D; create a new Referen3D Model, specify the reference model folder and reference model coordinate information. 3. After adding the reference model in Project Management, enter SP3D, select the reference model in the filter, and the referenced 3DMax model can be displayed in the SP3D modeling interface. Based on the reference model, other object modeling can be continued in SP3D. Step S6: Based on the complete three-dimensional model formed in step S5, the renovation design of the old heating station is carried out to form a design plan. Specifically, the renovation design operation is directly carried out on the basis of the three-dimensional model established in step S5, the old equipment facilities and pipelines are dismantled, and the new equipment and pipelines are connected. After the design is completed, the design drawings covering the original model and the new part are issued, and the engineering demolition and construction engineering volume is automatically counted, and finally the digital design and management documents of the renovation station are formed.

[0013] Take the construction of a heating station renovation project in a heating renovation project of an oilfield base as an example. In this project, the construction of the heating station requires the removal of some equipment and pipelines, the construction of a new heating system, the repair and upgrading of the electrical instrumentation and control system, and other renovation design work. The station has been built for many years, and the internal equipment and facilities are outdated. It has undergone many renovations during this period, and it is no longer possible to find drawings and materials that match the current status of the heating station. Professional designers need to conduct on-site surveys, manually measure and restore basic drawings, and estimate the workload of demolition and renovation. At the same time, there are 28 such heating station renovations in the Zhongyuan Oilfield Base Heating Station Renovation Project, so the manpower and time required are extremely high.

[0014] According to a method proposed by the present invention for joint modeling of point cloud data for heating station reconstruction design:

[0015] 1) A three-dimensional laser scan of the entire heating station was carried out, 79 scanning sites were arranged throughout the station, and cloud data and panoramic images of the entire station were collected.

[0016] 2) Use Cyclone software to pre-process the point cloud data, stitch and color the images and point cloud data of each scanning site, form a full-site cloud model, and present grayscale point cloud, color point cloud, reflection point cloud data model and panoramic image.

[0017] 3) Through the point cloud data browsing, viewing and editing functions, data measurement, panoramic image survey, preliminary design of transformation plan and other tasks can be completed, replacing the on-site work process.

[0018] 4) Import the point cloud data into SP3D software through CloudWrox software, and use SP3D to fit and model the point cloud model for pipelines and equipment that need to be modified and provide specific information. And through the established grade library, give attribute information to the model to form an editable 3D design model.

[0019] 5) Import the point cloud data into 3DMax software through CloudWrox software, perform 3DMax modeling and photo mapping on the factory building, equipment foundation, steel structure, facilities that do not require modification, etc., to form a three-dimensional real-life display model.

[0020] 6) Combine the 3D design model and the display model, and perform renovation design operations such as equipment and pipeline dismantling, new heating system equipment and pipelines, etc. in SP3D software. After the design is completed, calculate the engineering quantity.

[0021] The present invention solves the problems in the prior art of lack of basic data on old stations for renovation, large workload and low efficiency in manual measurement and restoration of station data, and high error rate in statistics of demolition and construction engineering quantities in renovation design, and provides a joint modeling method that is particularly suitable for the design of renovation stations, which can not only fully represent the model information of the entire station, but also provide data information of key areas, thereby improving the work efficiency and design quality of the renovation of old stations.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for renovating an old heating station based on point cloud scanning, characterized in that: include: Step S1: Obtain cloud data of old heating sites; Step S2: preprocessing the acquired point cloud data; Step S3: import the point cloud data into SP3D software, model the equipment and pipelines in the key areas, and add attribute information; the equipment attribute information includes: equipment position number, nozzle specification, equipment pressure level, flange type, and pipeline attribute information refers to pipeline specification, pressure level, medium property, material, and pipe fitting specification, material level; Step S4: import the point cloud data into 3dMax software, model the non-critical equipment, facilities, and buildings, and form a real-scene model; Step S5: importing the real scene model in step S4 into the model with attribute information in step S3 to form a complete three-dimensional model of the entire station; Step S6: Based on the complete three-dimensional model formed in step S5, the old heating station is renovated and designed to form a design plan.

2. The method for renovating an old heating station based on point cloud scanning according to claim 1 is characterized in that: The step S2 includes: performing registration, filtering, denoising, splicing, and classification processing on the point cloud data to form station field scanning point cloud data and a panoramic image.

3. The method for renovating an old heating station based on point cloud scanning according to claim 1 is characterized in that: The step S3 includes: capturing, cutting, extracting pipeline information and equipment information of key areas through point cloud scanning, and adding attribute information.

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