CN110362895B - Land acquisition removal application management system based on BIM + GIS technology - Google Patents
Land acquisition removal application management system based on BIM + GIS technology Download PDFInfo
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Abstract
The invention discloses a land acquisition removal application management system based on a BIM + GIS technology, and belongs to the technical field of engineering management. The system comprises a multi-view image collection module, a real-scene model generation module, an underground pipe network model generation module, a basic application module, an APP module and a data application module. The invention combines the live-action model generated by the multi-view image with the underground network management model, accurately inputs data on the generated application model in a single mode, truly restores the removal scene, simplifies the data acquisition process, and greatly reduces the error rate of the data while preventing the data loss. According to the system, the data binding between the data and the model can be realized in the system by inputting the relevant business survey data on the single model, so that the data can be conveniently checked; data input by business personnel on site can be synchronously checked by other personnel in the system, so that real-time checking, sharing and interaction of the data are realized.
Description
Technical Field
The invention relates to the technical field of engineering management, in particular to a land acquisition relocation application management system based on a BIM + GIS technology.
Background
At present, the main processes of land acquisition and removal modes comprise satellite image aerial photography, field data investigation, construction unit on-site review, offline progress management and the like. The specific operation method comprises the steps of obtaining a satellite aerial photo, drawing a sign-off red line graph by combining with a sign-off planning CAD drawing, measuring cadastral elements by field personnel outside the State and local Bureau, then delivering related data to a construction unit, carrying out field red line lofting by the construction unit, wherein in the red line lofting process, visiting sign-off areas are required, investigating house owners, resident population, house number and house types, measuring the areas of houses and affiliated facilities on the spot, simultaneously contacting with the related property right units, obtaining related information of an underground pipe network, marking information such as property rights, types, trends, depths and the like on the map, sorting and summarizing the information obtained by the field and the related property right units to form an integral sign-off investigation report, and realizing progress deduction and progress early warning control by means of sand trays, map labeling and the like in a sign-off period.
In the current land acquisition removal mode management process, when a lofting red line internal graph is drawn, field lofting is required according to drawing information; in the field lofting process, service personnel visit on the spot and record information (mainly comprising information such as house owners, resident population, house number, house types, area of measured houses and auxiliary facilities thereof on the spot) which is recorded as field collected data, the information is recorded by field responsibility, the information is recorded in an operation chart firstly, then the operation chart is converted into a plotting upper chart, and then the plotting upper chart is arranged, gathered and recorded by field personnel, so that the data error rate is high easily caused under the influence of different personnel, different time and different processes.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems that the existing land acquisition and removal mode cannot really restore the removal scene, the field information acquisition error rate is high, and the data loss is serious, the invention provides a land acquisition and removal application management system based on a BIM + GIS technology.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a kind of expropriation and removal application management system based on BIM + GIS technology, including the following module:
(1) The multi-view image collection module is used for acquiring multi-view images of the sign and tear area;
(2) The real scene model generating module is used for generating a real scene model from the multi-view image;
(3) The underground pipe network model generating module is used for attaching the underground pipe network map to the surface of the GIS topographic map to generate an underground pipe network model;
(4) The basic application module is used for adjusting the position relation between the live-action model and the underground network management model to obtain an application model, and marking the application model to obtain a monomer model; for importing a BIM model;
(5) The APP module is used for inputting the survey information into the corresponding monomer model to obtain a monomer model containing data and further obtain an application model containing data;
(6) A data application module: and managing expropriation and place removal by utilizing the application model with the data and the BIM model.
As an optimization scheme, the multi-view image collection module carries more than 2 sensors on a flight platform, collects high-resolution images from vertical and inclined angles at the same time, and acquires POS data and ground image control point data of the images by combining a differential system carried by the flight platform;
the sensor is a digital camera after distortion correction, the inclination angle is 35-65 degrees, the POS data comprises elevation, longitude, latitude and attitude angles automatically recorded during photographing, 3-5 image control points are arranged in each square kilometer, and the image control point data comprises horizontal control coordinates and/or elevation data of the image control points;
in the shooting process, the course overlapping degree of the open area is not less than 80%, and the side overlapping degree is not less than 60%; the course overlapping degree of urban areas and tall buildings is not less than 85%, the side overlapping degree is not less than 75%, and the navigation height is more than 2 times of that of the highest building in the survey area;
the overlapping degree refers to the overlapping condition of 2 continuous photos and acquisition areas.
As an optimization scheme, the live-action model generation module generates the multi-view image into a live-action model by using ContextCapture software.
As an optimization scheme, the underground pipe network model generation module comprises,
importing a CAD drawing of an underground light/cable, and attaching the light/cable model to the surface of a GIS topographic map in different colors in a projection mode to generate a light/cable model;
importing a CAD drawing of the pipeline, assigning the pipe diameter and burial depth information, identifying the direction of the central line, and generating a pipeline model;
and marking related information on the underground pipe network model, wherein the related information comprises burial depth, material, trend, property information and surrounding environment information, and displaying the related information in a label mode.
As an optimization scheme, the basic application module is also provided with a material library.
As an optimization scheme, in the basic application module, after the removal task of the building is completed, in the application model containing data, the flattening operation is performed on the single-body model corresponding to the building, and the flattened application model containing data is saved.
As an optimization scheme, in the APP module, the investigation information comprises information of a structure to be moved, information of an underground pipe network and information of a non-building to be moved.
As an optimization scheme, the data application module manages expropriation and removal by using the application model containing data, and the method comprises the following steps:
(a) Displaying a sign-and-tear scene;
(b) Summarizing and analyzing survey data of expropriate land relocation;
(c) And early warning is carried out on the process delay of expropriation and removal.
As an optimization scheme, the method further comprises the following steps:
(7) The report generation module is used for counting, analyzing and exporting the expropriation removal business statistical report;
(8) And the database module is used for storing, calculating and sending the data of the system.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention combines the live-action model generated by the multi-view image with the underground network management model, accurately inputs data on the generated application model in a single mode, truly restores the removal scene, simplifies the data acquisition process, and greatly reduces the error rate of the data while preventing the data loss. According to the system, the data binding between the data and the model can be realized in the system by inputting the relevant business survey data on the single model, so that the data can be conveniently checked; data input by business personnel on site can be synchronously checked by other personnel in the system, so that real-time checking, sharing and interaction of the data are realized.
(2) When multi-view image collection module shoots multi-view image through unmanned aerial vehicle, in view of aspects such as memory size, photo quality, shoot the parameter to unmanned aerial vehicle and carry out reasonable optimization, when the scope of shooing satisfies the operation requirement, can shoot the scope beyond the banding region as little as possible, not only improve the photo and gather the precision, reduced the work load of shooing, still reduced the later stage and passed through the processing work load of ContextCapture software generation live-action model, reduced the post processing cost.
(3) The ContextCapture software has the advantages that the automation degree of the process from multi-view images to model building is high, the model precision is high, the manual intervention workload is low, and the generated live-action model can be visually displayed in the whole sign dismantling area after being imported into the system.
(4) According to the invention, an underground light/cable is attached to the surface of a GIS topographic map in a CAD (computer-aided design) map projection mode, an underground gas pipeline and pressure pipeline CAD map importing system is supported, information such as pipe diameter, burial depth and the like is assigned, and the trend of a central line is identified to generate a pipe network model. According to the invention, through realizing the labeling of the related information such as the property information, the embedded information and the like of the pipeline and the optical cable in the land acquisition and removal application management system based on the BIM + GIS technology, the spatial hierarchy and the position relation of the underground pipeline are visually displayed, the information such as the embedded depth, the material, the trend, the property information, the surrounding environment and the like of the underground pipeline is displayed in a field simulation mode, and accurate, visual and efficient reference is provided for further construction.
(5) The invention identifies the type, quantity, area and the like of the non-buildings to be removed by setting the material library and comparing the live-action model with the materials in the material library, automatically divides the administrative regions and reduces the field workload of business personnel. In addition, the beautification of the removed scene can be realized and the simulation of the removed scene can be realized by establishing the material library.
(6) According to the invention, the removal progress can be known in real time by checking the models which are flattened or not flattened. In addition, different model states exist in each time stage in the system aiming at the archive of the removal condition of each building/each day in the system, and the BIM model imported in the basic application module is superposed on the flattened live-action model, so that the scene simulation after the sign and removal can be realized in the early stage of the sign and removal, and the instantiated display of the scene after the sign and removal can be realized; dynamically playing the removal situation through a time axis, thereby realizing the progress deduction of the expropriation removal; and judging whether the delay is delayed or not can be realized according to the current state of each building and the time to be removed of the building.
(7) According to the invention, the survey data are input into the corresponding monomer model, so that real-time uploading, archiving and summarizing analysis of the data can be realized; the established application model containing the data can intuitively restore the real-time scene of characteristic removal, and the scene change before and after characteristic removal is seen, so that the characteristic removal scene is restored to the maximum extent, and people can more intuitively understand and know the scene; timely early warning can be found in time when the sign and tear down progress goes wrong, and the sign and tear down process is promoted effectively, and the removal process is managed.
(8) The report generation module is used for combining and counting the service data, generating a related land acquisition removal service statistical report, counting, analyzing and exporting the statistical report in the land acquisition removal application management system based on the BIM + GIS technology, and the database module is used for storing, calculating and sending the data of the underground pipe network map import and generation module, the land acquisition and removal application management module, the land acquisition and display module and the report module.
Drawings
Fig. 1 is a schematic diagram of a land acquisition relocation application management system based on the BIM + GIS technology.
Detailed Description
The invention is further described with reference to specific examples.
Example 1
A system for managing an expropriation and removal application based on BIM + GIS technology, as shown in fig. 1, includes:
(1) The multi-view image collecting module is used for acquiring multi-view images of the sign and tear area;
the unmanned aerial vehicle oblique photogrammetry is a newly developed technology in the field of international surveying and mapping remote sensing at present, and is essentially a photogrammetry technology which is used for carrying a plurality of sensors on the same flight platform, acquiring high-resolution images from vertical and oblique angles, combining POS data acquired by a differential system carried by the unmanned flight platform and a small amount of ground image control point data, and acquiring a digital surface model, a digital positive image and a three-dimensional model through related software processing.
The multi-view image that acquires sign and tear down the region adopts and utilizes the specific process of unmanned aerial vehicle oblique photography technique to include:
more than 2 sensors are carried on a flight platform, high-resolution images are collected from vertical and inclined angles at the same time, and POS data and ground image control point data of the images are obtained by combining a differential system carried by the flight platform;
the sensor is a digital camera with distortion correction, the inclination angle is 35-65 degrees, POS data comprises elevation, longitude, latitude and attitude angle which are automatically recorded during photographing, 3-5 image control points are arranged in each square kilometer, and the image control point data comprises horizontal control coordinates and/or elevation data of the image control points; the setting number of the inclination angle and the image control point is selected according to the actual situation, and the multi-view effect suitable for the invention can be obtained within the range.
The corresponding oblique camera model is selected according to the size of an operation scene and the terrain complexity, the common FC6310 with the Sony A6000 series, the A73 and the Dajiang are increased as appropriate for image control points and places with complex terrain and are uniformly distributed, so that the accuracy of multi-view images is improved, the specific setting during oblique shooting of the unmanned aerial vehicle is set according to the size of the operation scene, the terrain complexity and the like, and some settings need to refer to national standards.
The overlap affects the width of the web, the higher the overlap, the narrower the width of the web. Along with building height and building density's difference, need in time change data acquisition's overlap degree, the tape width of adjustment unmanned aerial vehicle collection. In the shooting process, the course overlapping degree of the open area is not less than 80%, and the side overlapping degree is not less than 60%; the course overlapping degree of urban and tall buildings is not less than 85%, the side overlapping degree is not less than 75%, the overlapping degree of the ship height which is more than 2 times of the highest building in the survey area refers to 2 continuous photos, and the overlapping condition of the area is collected; during actual operation, in a specific implementation process, the overlapping degree is adjusted within the range according to actual conditions, and the acquisition precision of the photos can be guaranteed on the premise of saving memory.
In the railway industry, land acquisition is generally carried out in a long and narrow strip-shaped area, when multi-view images are shot by an unmanned aerial vehicle, shooting parameters of the unmanned aerial vehicle are reasonably optimized in consideration of the aspects of memory size, picture quality and the like, the shooting range meets the use requirement, the range outside the strip-shaped area can be shot as few as possible, the picture acquisition precision is improved, the shooting workload is reduced, the processing workload of generating a live-action model by ContextCapture software in the later period is reduced, and the post-processing cost is reduced.
(2) The real scene model generating module is used for generating a real scene model from the multi-view image;
performing space-three encryption calculation by using ContextCapture software to generate point cloud data, and making a real scene model of a verification and demolition site through the point cloud data; the ContextCapture software has the advantages that the automation degree of the process from multi-view images to model building is high, the model precision is high, the manual intervention workload is low, and the generated live-action model can be visually displayed in the whole sign dismantling area after being imported into the system.
(3) The underground pipe network model generating module is used for attaching the underground pipe network map to the surface of the GIS topographic map to generate an underground pipe network model;
a Geographic Information System (GIS) is a technology for collecting, storing, managing, operating, analyzing, displaying and describing relevant geographic distribution data in the whole or partial earth surface (including the atmosphere) space under the support of computer hardware and software systems, wherein the geographic distribution data is symbolic representation of various geographic features and phenomena, including spatial positions, attribute features, time domain features and spatial distribution features, and maps are used as information carriers and transmission media.
The specific process comprises the following steps of,
importing a CAD drawing of an underground light/cable, and attaching a light/cable model to the surface of a GIS topographic map in different colors in a projection mode to generate the light/cable model;
importing a CAD drawing of the pipeline, assigning pipe diameter and burial depth information, identifying the trend of the central line, and generating a pipeline model;
and marking related information on the underground pipe network model, wherein the related information comprises buried depth, material, trend, property information and surrounding environment information, and displaying the related information in a label mode.
(4) The basic application module is used for importing a BIM (building information modeling) model of a building to be built, adjusting the geographical positions, the angle positions and the relative position relation between the real scene model and the underground network management model to make the real scene model, the underground network management model and the underground network management model coincide with each other (a reference object can be set), obtaining an application model, and marking the application model to obtain a single model; the basic application model is also provided with a material library; if the bridge is built, the BIM model of the bridge is placed.
The model obtained by the inclined model is usually an 'epidermis' model which is approximately divided by a grid, is mostly a surface model formed by continuous triangular surfaces, and can not distinguish the land and feature information such as buildings, small products, roads, vegetation and the like. Therefore, in order to facilitate data entry, classification, development of applications such as attribute hooking and the like, the method performs monomer operation on the inclined model, so that specific ground and object objects such as buildings, small articles, roads, vegetation and the like are identified in the 'skin' model, and corresponding three-dimensional applications are developed.
In the traditional land acquisition and removal mode, business personnel are required to go to the site for data statistics, including the types, the number, the areas, the diameters and the like of the business personnel. The invention sets material libraries of non-buildings to be removed, such as material libraries of trees, crops and the like, in the system, and the system can automatically identify the information of the types, the quantity, the diameters and the like of the trees and the crops according to the live-action model and by comparing with the trees, the crops and the like in the system. By comparing the live-action model with the materials in the material library in the system, the types, the number, the areas and the like of the non-buildings to be removed are identified, the administrative regions are automatically divided, and the field workload of business personnel is reduced. In addition, the beautification of the removed scene can be realized and the removed scene can be simulated by establishing the material library.
The adjustment comprises flattening, after the removal task of the building is completed, flattening operation is carried out on the monomer model corresponding to the building in the application model with data, and the flattened application model containing the data is saved.
When the building is removed, the building is flattened in the system, the removal state can be visually displayed, and managers can know the removal progress in real time by checking the flattened and non-flattened models in the system. In addition, the system archives the removal condition of each building/each day, different model states exist in each time stage in the system, and the removal condition is dynamically played through a time axis, so that the progress deduction of expropriated removal is realized; and judging whether the delay is delayed or not can be realized according to the current state of each building and the time to be removed of the building.
(5) The APP module is used for inputting the survey information into the corresponding monomer model to obtain a monomer model containing data and further obtain an application model containing data;
the survey information includes information of the structure to be moved (owner, number, type, administrative area, unit price, cost, planned/actual removal date, remarks, etc.); underground pipelines (cable, optical cable, pressure pipeline, gas pipeline and other property rights and buried information); information of non-buildings to be moved (area, diameter, height, number and kind information of flowers, plants, trees and crops).
According to the invention, through GPS positioning of the mobile phone terminal, a single live-action model of an object to be removed corresponding to the live-action model is automatically selected, corresponding investigation information is input into the single live-action model, GPS positioning information of the current position and input service information are automatically sent by the mobile phone terminal and are hung in the corresponding single live-action model, the single live-action model can be manually clicked for information input, and the information can be synchronously displayed at a system PC terminal after being input. The survey information obtained by the service personnel in the process of visiting can realize the business data sharing of the APP end and the PC end on the one hand, and can realize the data information sharing between different business roles according to the corresponding authority control on the other hand, thereby improving the timeliness of data information sharing and realizing the interconnection and intercommunication of data. By the method, the corresponding model can be directly selected and relevant information can be input in the process of visiting field service personnel, so that the existing paper record condition is replaced, and the data sharing performance, accuracy and easy storage performance are greatly improved.
(6) A data application module: managing the place relocation using the application model with data, including,
a. displaying sign-off scenes, including pre-sign-off scenes and post-sign-off scenes;
the traditional expropriation and removal mode cannot provide visual display of the removal progress for people, and only can represent the removal completion by marking a word of 'removal' on a paper drawing.
b. Summarizing and analyzing survey data of expropriate land relocation;
in a traditional land acquisition and removal mode, after survey data are collected by service personnel, the survey data are generally stored and archived on paper, and the problems of data loss, difficulty in searching, incapability of realizing data sharing and the like exist. According to the invention, the survey data is recorded into the corresponding monomer model, so that real-time uploading, archiving and summarizing analysis of the data can be realized. The workload of personnel is reduced, and meanwhile, data loss is avoided.
c. Early warning is carried out on the progress delay of expropriation and removal;
the conventional sign-and-tear progress simulation is generally marked in a sand table/aerial photography graph, and the progress cannot be displayed.
In addition, the invention can also realize the function of double-screen comparison, after the relevant area is selected, the system automatically identifies the relevant parameters, and provides one or more sign-off schemes to realize the necessary choice of the sign-off schemes. Firstly, setting a relevant rule (such as minimum area for passing through a resident) in the system, automatically providing one or more sign-off schemes by the system according to the set rule after selecting the relevant area, and selecting a screen splitting mode of multiple schemes when multiple sign-off schemes exist, so that the scheme is better selected, namely double-screen comparison.
(7) And the report generation module is used for combining and counting the service data, generating a related land acquisition and relocation service statistical report, and carrying out statistics, analysis and export in the land acquisition and relocation application management system based on the BIM + GIS technology.
(8) And the database module is used for storing, calculating and sending data of the underground pipe network diagram import and generation module, the sign and tear application management module, the sign and tear query display module and the report module.
The system of the embodiment combines the live-action model generated by the multi-view image with the underground network management model, and data is accurately input in the generated application model in a single mode, so that the removal scene is truly restored, the data acquisition process is simplified, and the error rate of the data is greatly reduced while data loss is prevented. According to the system, the data binding between the data and the model can be realized in the system by inputting the related business survey data on the single model, so that the data can be conveniently checked; the data entered by the service personnel on the site can be synchronously checked by other personnel in the system, so that the real-time checking, sharing and interaction of the data are realized.
Claims (4)
1. A kind of land acquisition and removal application management system based on BIM + GIS technology, characterized by that, including the following module:
(1) The multi-view image collecting module is used for acquiring multi-view images of the sign and tear area;
(2) The real scene model generating module is used for generating a real scene model from the multi-view image;
(3) The underground pipe network model generating module is used for attaching the underground pipe network map to the surface of the GIS topographic map to generate an underground pipe network model;
(4) The basic application module is used for adjusting the position relation between the live-action model and the underground network management model to obtain an application model, and marking the application model to obtain a single-body model; for importing a BIM model;
(5) The APP module is used for inputting the survey information into the corresponding monomer model to obtain a monomer model containing data and further obtain an application model containing data;
(6) A data application module: managing expropriation and removal by utilizing the application model with the data and the BIM model;
the underground pipe network model generating module comprises a CAD drawing for guiding in underground light/cable, and attaching the light/cable model to the surface of a GIS topographic map in different colors in a projection mode to generate a light/cable model; importing a CAD drawing of the pipeline, assigning the pipe diameter and burial depth information, identifying the direction of the central line, and generating a pipeline model; marking related information on the underground pipe network model, wherein the related information comprises buried depth, material, trend, property information and surrounding environment information, and displaying the related information in a label mode;
the basic application module is also provided with a material library; in the basic application module, after the removal task of the building is completed, flattening operation is carried out on a single model corresponding to the building in the application model containing data, and the flattened application model containing data is stored;
in the APP module, the investigation information comprises information of a structure to be moved, information of an underground pipe network and information of a non-building to be moved;
the data application module manages the expropriation and removal by utilizing the application model containing the data, and the management comprises the following steps: (a) displaying a sign-and-tear scene; (b) aggregating and analyzing survey data of the place relocation; and (c) early warning the progress delay of land acquisition and relocation.
2. The BIM + GIS technology-based land acquisition and removal application management system of claim 1, wherein the multi-view image collection module is equipped with more than 2 sensors on a flight platform, collects high-resolution images from vertical and oblique angles, and acquires POS data and ground image control point data of the images by combining a differential system carried by the flight platform; the sensor is a digital camera after distortion correction, the inclination angle is 35-65 degrees, the POS data comprises elevation, longitude, latitude and attitude angles automatically recorded during photographing, 3-5 image control points are arranged in each square kilometer, and the image control point data comprises horizontal control coordinates and/or elevation data of the image control points; in the shooting process, the course overlapping degree of the open area is not less than 80%, and the side overlapping degree is not less than 60%; the course overlapping degree of urban areas and tall buildings is not less than 85%, the side overlapping degree is not less than 75%, and the navigation height is more than 2 times of that of the highest building in the survey area; the overlapping degree refers to the overlapping condition of 2 continuous photos and acquisition areas.
3. The BIM + GIS technology-based expropriation and removal application management system as claimed in claim 1, wherein the live-action model generation module generates the multi-view image into a live-action model by using ContextCapture software.
4. The system for managing an expropriately migrated application based on BIM + GIS technology as claimed in claim 1, further comprising: (7) The report generation module is used for counting, analyzing and exporting the expropriation place removal business statistical report; (8) And the database module is used for storing, calculating and sending the data of the system.
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| CN106780165A (en) * | 2017-01-10 | 2017-05-31 | 苏州大学 | A kind of architecture information is gathered and edited and AMS |
| CN109191574A (en) * | 2018-09-07 | 2019-01-11 | 江苏省工程勘测研究院有限责任公司 | Earth clearance object research information management system based on unmanned plane oblique photograph |
| CN109033722A (en) * | 2018-09-13 | 2018-12-18 | 厦门市建筑科学研究院集团股份有限公司 | A kind of piping lane Virtual Construction construction on site method based on BIM-GIS |
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