CN114419112A - Building construction height identification method and device and electronic equipment - Google Patents
Building construction height identification method and device and electronic equipment Download PDFInfo
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Abstract
The invention relates to the technical field of building construction, in particular to a method, a device and electronic equipment for identifying the building construction height, wherein the method comprises the steps of acquiring image data of a target construction area to determine a three-dimensional model of the target construction area; performing homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model; acquiring each building monomer area in a target construction area; dividing the target three-dimensional model based on each building monomer area, and determining the target monomer three-dimensional model of each building monomer; and performing height analysis on the three-dimensional model of each target monomer to determine the construction height of each building monomer. The three-dimensional models of all objects in the target construction area can be realized through the acquired image data, the three-dimensional models are corrected by combining a homonymy registration mode, and the target monomer three-dimensional models of all the building monomers are obtained by segmentation on the basis, so that the accuracy of the recognition result and the recognition efficiency are ensured.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a building construction height identification method and device and electronic equipment.
Background
For the progress management of a main building, the current mainstream still depends on the judgment of personnel supervisor for information feedback, and the main defects are the accuracy and the hysteresis of the progress information, no quantitative data support exists, the progress judgment given by each person is possibly greatly different, and the subsequent planning is influenced. Meanwhile, laser ranging equipment is installed on the tower crane, sampling points are collected on the construction working face of the building, and then the height information of the working face is analyzed and calculated, so that the control of the progress of a construction site is completed.
Specifically, there is often a deviation depending on the on-site patrol and supervisor judgment of the manager, for example: a certain constructor takes observation feedback, namely 'the installation of the 7-layer structural steel bars of the 1# floor is completed by 40%', but the actual field progress is probably only 20%). At present, some field management systems can realize rapid recording and feedback information in APP, the real-time performance of the information is improved, but the feedback progress is judged by a manager, quantized data support is not available, the progress judgment given by each person is possibly different greatly, and the subsequent planning is influenced.
The method is characterized in that hardware equipment such as a distance meter is installed on a tower crane, and the power supply and network signals are switched on to measure the floor construction height. The operation is relatively complex, and generally speaking, each building needing to monitor progress needs to install a range finder and a GPS device on the corresponding tower crane. This method results in increased costs and the use of only measuring the floor height results in wasted resources. Secondly, need crane operating personnel to drive corresponding position when finding range at every turn and carry out the range finding, can increase this part of staff's work load, can influence the construction progress even. Furthermore, the ranging device is network and power-consuming and runs the risk of being resource consuming and, in extreme cases, inoperable.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for identifying a building construction height, and an electronic device, so as to solve the problems of accuracy and efficiency of identifying a building construction height.
According to a first aspect, an embodiment of the present invention provides a method for identifying a building construction height, including:
acquiring image data of a target construction area to determine a three-dimensional model of the target construction area;
performing homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model;
acquiring each building monomer area in the target construction area;
dividing the target three-dimensional model based on each building monomer area, and determining the target monomer three-dimensional model of each building monomer;
and performing height analysis on the three-dimensional model of each target monomer to determine the construction height of each building monomer.
According to the building construction height identification method provided by the embodiment of the invention, the three-dimensional models of all objects in the target construction area can be realized through the acquired image data, the three-dimensional models are corrected by combining a homonymy registration mode to obtain accurate target three-dimensional models, the target three-dimensional models are segmented on the basis to obtain the target monomer three-dimensional models of all building monomers, the accuracy of the target monomer three-dimensional models is ensured, more accurate construction heights can be obtained on the basis, and the accuracy and the identification efficiency of building construction height identification are ensured.
With reference to the first aspect, in a first implementation manner of the first aspect, the performing, based on the position information of the ground reference point of the target construction area, homonymous point registration on the three-dimensional model to obtain a target three-dimensional model includes:
converting the position information of the ground reference point into position information in the three-dimensional model;
and performing position registration based on the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
According to the method for identifying the building construction height, provided by the embodiment of the invention, as the position information of the ground reference point is real position information, the real position information is utilized to carry out position registration on the three-dimensional model, and the accuracy of the obtained target three-dimensional model is improved.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the determining the target three-dimensional model based on position registration between the converted position information and position information of a position point in the three-dimensional model corresponding to the ground reference point includes:
and respectively carrying out horizontal and elevation registration by using the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
According to the building construction height identification method provided by the embodiment of the invention, the three-dimensional model is subjected to horizontal and elevation registration so as to reduce the error between the target three-dimensional model subjected to registration processing and the actual building, and the accuracy of the subsequently identified construction height is further improved.
With reference to the first aspect, in a third implementation manner of the first aspect, the performing height analysis on each target monomer three-dimensional model to determine a construction height of each building monomer is a three-dimensional point cloud model, and the determining includes:
carrying out interval division on each target monomer three-dimensional model based on a preset height to obtain a plurality of three-dimensional point cloud intervals;
determining the height of the construction surface of each building monomer based on the number of data points in each three-dimensional point cloud interval;
acquiring a building ground reference height;
and determining the construction height of each building unit based on the construction surface height and the building ground reference height.
According to the building construction height identification method provided by the embodiment of the invention, the target single three-dimensional model is subjected to interval division, the number of point clouds is counted in intervals to determine the height of a construction surface, and the point clouds of the image data on the side elevation surface of the three-dimensional model are sparse, so that the number of the point clouds is counted in the height direction in an interval division mode, and the construction height identification accuracy is improved.
With reference to the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the determining the construction surface height of each building unit based on the number of data points in each three-dimensional point cloud interval includes:
counting the number of data points in each three-dimensional point cloud interval to determine at least two target three-dimensional point cloud intervals with the largest number;
and when the at least two target three-dimensional point cloud intervals are continuous in height, determining the height of the construction surface of the building monomer based on the height average value of all data points in the at least two target three-dimensional point cloud intervals.
According to the method for identifying the building construction height, provided by the embodiment of the invention, for the condition of continuous intervals, the construction surface height is determined through the height average value of all data points in at least two continuous target three-dimensional point cloud intervals, so that the accuracy of the construction surface height is improved.
With reference to the fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, the determining a construction surface height of each building unit based on the number of data points in each three-dimensional point cloud interval further includes:
when the at least two target three-dimensional point cloud intervals are discontinuous in height, determining a target three-dimensional point cloud interval with the largest data points in the at least two target three-dimensional point cloud intervals;
and determining the height of the construction surface of the building monomer based on the height average value of all data points in the target three-dimensional point cloud interval with the most data points.
According to the method for identifying the building construction height, provided by the embodiment of the invention, for the condition that the interval is discontinuous, which may be caused by errors, the errors are removed, the height of the construction surface is determined only by using the height average value of all data points in the target three-dimensional point cloud interval with the largest data points, and the accuracy of the determined height of the construction surface can be ensured.
With reference to the first aspect, in a sixth implementation of the first aspect, the method further includes:
acquiring the floor height of each building unit;
and determining the construction progress of each single building body based on the construction height and the floor height of each single building body.
According to the building construction height identification method provided by the embodiment of the invention, when the construction progress is determined, the reference height of the building ground is combined, and the reference height is removed, so that the error is reduced.
According to a second aspect, an embodiment of the present invention further provides an identification apparatus for building construction height, including:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring image data of a target construction area so as to determine a three-dimensional model of the target construction area;
the registration module is used for carrying out homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model;
the second acquisition module is used for acquiring each building monomer area in the target construction area;
the segmentation module is used for segmenting the target three-dimensional model based on each building monomer area and determining the target monomer three-dimensional model of each building monomer;
and the determining module is used for performing height analysis on the three-dimensional model of each target monomer and determining the construction height of each building monomer.
According to a third aspect, an embodiment of the present invention provides an electronic device, including: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing therein computer instructions, and the processor executing the computer instructions to perform the method for identifying a building construction height as set forth in the first aspect or any one of the embodiments of the first aspect.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method for identifying a building construction height according to the first aspect or any one of the embodiments of the first aspect.
According to a fifth aspect, an embodiment of the present invention provides a building construction height identification system, including:
the acquisition equipment is used for acquiring image data of a target construction area;
the aircraft is used for carrying the acquisition equipment;
the electronic device of the third aspect of the present invention is connected to the collecting device, and is configured to determine the construction height of each building unit.
It should be noted that, for corresponding beneficial effects of the identification device, the electronic device, the computer-readable storage medium, and the identification system for building construction height provided in the embodiments of the present invention, please refer to the description of corresponding beneficial effects of the identification method above, which is not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a building construction height identification system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hardware configuration of an electronic device according to an embodiment of the invention;
fig. 3 is a flowchart of a building construction height identification method according to an embodiment of the present invention;
fig. 4 is a flowchart of a building construction height identification method according to an embodiment of the present invention;
fig. 5 is a flowchart of a building construction height identification method according to an embodiment of the present invention;
fig. 6 is a flowchart of a building construction height identification method according to an embodiment of the present invention;
fig. 7 is a block diagram of a construction height recognition apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a progress display interface according to an embodiment of the invention;
fig. 9 is a schematic diagram of the planned times for the respective floors according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a building construction height identification system, as shown in fig. 1, which comprises a collection device 10, an aircraft (not shown in the figure) and an electronic device 30. The acquisition equipment 10 is used for acquiring image data in a target construction area, the aircraft is used for carrying the acquisition equipment, and the electronic equipment 30 is connected with the acquisition equipment and used for determining the construction height of each building unit in the target construction area based on the image data acquired by the acquisition equipment.
In particular, the acquisition device 10 may be a high-precision positioning device, such as an RTK \ PPK acquisition module, or other acquisition module, etc.; the aircraft may be a drone or the like; the electronic device may be a server, a computer, etc. of a ground terminal. The target construction area is an area corresponding to one construction project, and for example, when the target construction area is a residential area, a single building in the residential area is referred to as a single building.
As an application scenario of this embodiment, the unmanned aerial vehicle is equipped with a collection device to collect image data in a target construction area. The flight route of the unmanned aerial vehicle is obtained by planning in advance, and can also be controlled on the ground in real time according to actual requirements, and the like. The acquisition equipment uploads the image data acquired in real time in the target construction area to the electronic equipment, and the electronic equipment determines the real-time construction height of each building unit in the target construction area by executing the building construction height identification method in the embodiment of the invention.
As another application scenario of the present embodiment, unlike the above application scenario, the capturing device captures and stores the image data. After the collection task is finished, the image data is uploaded to the electronic equipment, so that the electronic equipment performs offline analysis.
The building construction height identification system provided by the embodiment of the invention can avoid the problems of subjective judgment of project personnel and overhigh hardware cost of a laser range finder, can accurately provide the number and height of finished layers of each building according to the acquired information of the unmanned aerial vehicle with high-precision positioning equipment (such as an RTK/PPK acquisition module), is independent of the whole construction site, has low cost and high precision, saves the time and energy of constructors and the related cost of additional equipment, reduces functional paralysis caused by power failure and the like of the construction site, and improves the efficiency of the constructors. Meanwhile, economic losses of an armour party caused by the fact that a project department hides reports and reports, and meanwhile, the mode of unmanned maintenance is convenient for large-scale popularization in the future.
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for identifying a construction height, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein.
In this embodiment, a method for identifying a building construction height is provided, which can be used in the above-mentioned electronic devices, such as a server, a computer, etc., fig. 3 is a flowchart of a method for identifying a building construction height according to an embodiment of the present invention, and as shown in fig. 3, the flowchart includes the following steps:
and S11, acquiring the image data of the target construction area to determine a three-dimensional model of the target construction area.
As described above, the image data of the target construction area is the data collected by the collecting apparatus. The electronic equipment carries out three-dimensional reconstruction based on the image data and determines a three-dimensional model of the target construction area. The three-dimensional model is a three-dimensional real-scene model of the target construction area, for example, if the target construction area is a residential area, the three-dimensional model of the target construction area includes each residential building, landscape greening, and the like.
The specific manner of determining the three-dimensional model of the target construction area based on the image data of the target construction area may be selected according to actual requirements, and is not limited herein.
And S12, performing homonymy point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain the target three-dimensional model.
The ground reference point is a corresponding homonymous point on the actual site of the target construction area and the three-dimensional model, and for the actual site, the position information of the ground reference point can be obtained through mapping or other methods, and the specific obtaining method is not limited at all. For the selection of the ground reference points, 3, or 4, etc. can be selected, and the specific number thereof can be set according to the actual requirement.
For a location point on the three-dimensional model corresponding to the ground reference point, the location information can be directly obtained from the three-dimensional model. Because there may be a deviation between the position information of the ground reference point on the actual site and the position of the ground reference point on the three-dimensional model due to an acquisition error or a three-dimensional reconstruction error of the image data, the position information of the ground reference point in the target construction area needs to be utilized to perform homonymy point registration on the three-dimensional model to obtain the target three-dimensional model.
Details about this step will be described later.
And S13, acquiring each building single area in the target construction area.
Each building monomer area in the target construction area can be obtained through manual interactive drawing or mapping data, and each building monomer area comprises the contour line of each building monomer and the area surrounded by the contour line.
And S14, dividing the target three-dimensional model based on each building single area, and determining the target single three-dimensional model of each building single.
After obtaining each building single area, the electronic device segments the target three-dimensional model by using the building single areas. Specifically, each building unit area includes position information of each building unit and the enclosed area. The electronic equipment can analyze the target three-dimensional model to determine the position information of each target in the target three-dimensional model, and can determine whether each target in the target three-dimensional model is a building unit or not by combining each building unit area. After determining that one target in the target three-dimensional models is a building monomer, the electronic equipment segments the building monomer from the target three-dimensional models, and then the target monomer three-dimensional models of the building monomer can be determined.
Based on the method, the electronic equipment can divide the target single three-dimensional model of each building single from the target three-dimensional model.
And S15, performing height analysis on the three-dimensional model of each target monomer, and determining the construction height of each building monomer.
As described above, since the target three-dimensional model is a three-dimensional real scene model, it is obtained by modeling in proportion to the actual building. Therefore, the electronic equipment can determine the construction height of each building monomer by performing height analysis on the target monomer three-dimensional model and then reducing according to the proportion.
Wherein, the construction height is the height between the ground and the construction surface of the single building body. In some cases, the ground may be higher than the horizontal plane, so that after the height analysis is performed on the three-dimensional model of the target single body, the height of the target single body relative to the horizontal plane can be obtained, and then the construction height of each building single body can be obtained by combining the height of the ground.
Details about this step will be described later.
According to the building construction height identification method provided by the embodiment, the three-dimensional models of all objects in the target construction area can be realized through the acquired image data, the three-dimensional models are corrected by combining a homonymy registration mode to obtain an accurate target three-dimensional model, the target three-dimensional model is divided on the basis to obtain the target monomer three-dimensional model of each building monomer, the accuracy of the target monomer three-dimensional model is ensured, more accurate construction height can be obtained on the basis, and the accuracy and identification efficiency of building construction height identification are ensured.
In this embodiment, a method for identifying a building construction height is provided, which can be used in the above-mentioned electronic devices, such as a server, a computer, etc., fig. 4 is a flowchart of a method for identifying a building construction height according to an embodiment of the present invention, and as shown in fig. 4, the flowchart includes the following steps:
and S21, acquiring the image data of the target construction area to determine a three-dimensional model of the target construction area.
Reference is made in detail to S11 of the embodiment shown in fig. 3, which is not described herein again.
And S22, performing homonymy point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain the target three-dimensional model.
Specifically, S22 includes:
s221, converting the position information of the ground reference point into position information in the three-dimensional model.
As described above, the position information of the ground reference point is the actual geographical position point of the ground reference point, and is converted into the position information in the three-dimensional model by coordinate mapping and the like. For example, if there are 3 ground reference points, the electronic device converts the position information of the 3 ground reference points into position information in the three-dimensional model.
S222, carrying out position registration based on the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
For example, for the ground reference point a, the converted position information is (x1, y1, z1), and the position information of the ground reference point a in the three-dimensional model is (x2, y2, z 2). And the electronic equipment performs position calibration on the three-dimensional model by comparing the two pieces of position information, and finally determines the target three-dimensional model.
In some optional implementations of this embodiment, the step S222 may include: and respectively carrying out horizontal and elevation registration by using the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
Because the position information of the ground reference point is inconsistent with the DSM data coordinate, registration correction is needed, and the target three-dimensional model is accurately obtained. In general, the horizontal and elevation are respectively registered to obtain an accurate three-dimensional model of the target. However, as the hardware precision is improved, the horizontal precision error is very small, namely the horizontal error is far smaller than the elevation error, and the elevation error is taken as the main error, so that the validity of the calculation result is ensured. Specifically, the position of a field ground reference point is obtained, and the algorithm is automatically converted into a DSM corresponding point to finish elevation correction.
Respectively carrying out horizontal and elevation registration by utilizing the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model to determine the target three-dimensional model
And S23, acquiring each building single area in the target construction area.
Please refer to S13 in fig. 3 for details, which are not described herein.
And S24, dividing the target three-dimensional model based on each building single area, and determining the target single three-dimensional model of each building single.
Please refer to S14 in fig. 3 for details, which are not described herein.
And S25, performing height analysis on the three-dimensional model of each target monomer, and determining the construction height of each building monomer.
Please refer to S15 in fig. 3 for details, which are not described herein.
According to the method for identifying the building construction height, the position information of the ground reference point is real position information, and the real position information is used for carrying out position registration on the three-dimensional model, so that the accuracy of the obtained target three-dimensional model is improved.
In this embodiment, a method for identifying a building construction height is provided, which can be used in the above-mentioned electronic devices, such as a server, a computer, etc., fig. 5 is a flowchart of a method for identifying a building construction height according to an embodiment of the present invention, and as shown in fig. 5, the flowchart includes the following steps:
and S31, acquiring the image data of the target construction area to determine a three-dimensional model of the target construction area.
Please refer to S11 in fig. 3 for details, which are not described herein.
And S32, performing homonymy point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain the target three-dimensional model.
Please refer to S22 in fig. 4 for details, which are not described herein.
And S33, acquiring each building single area in the target construction area.
Please refer to S13 in fig. 3 for details, which are not described herein.
And S34, dividing the target three-dimensional model based on each building single area, and determining the target single three-dimensional model of each building single.
Please refer to S14 in fig. 3 for details, which are not described herein.
And S35, performing height analysis on the three-dimensional model of each target monomer, and determining the construction height of each building monomer.
Specifically, the target monomer three-dimensional model is a three-dimensional point cloud model, and S35 includes:
s351, carrying out interval division on each target monomer three-dimensional model based on the preset height to obtain a plurality of three-dimensional point cloud intervals.
The preset height is smaller than the floor height of the building single body, so that the accuracy of the determined construction height is guaranteed. For example, the preset height may be selected to be 0.5m, 1m, etc., and the specific height is not limited in any way. After obtaining each target monomer three-dimensional model, the electronic equipment divides the target monomer three-dimensional model into a plurality of three-dimensional point cloud intervals according to the height direction of the target monomer three-dimensional model.
For example, for the building single body a, the building single body a is divided according to the height direction thereof to obtain a plurality of three-dimensional point cloud sections.
And S352, determining the height of the construction surface of each building monomer based on the number of the data points in each three-dimensional point cloud interval.
As described above, each point cloud interval includes a plurality of data points. The electronic equipment determines the height of the construction surface of each building monomer according to the number of data points in each three-dimensional point cloud interval through statistics. For example, the height average of all data points in the three-dimensional point cloud interval with the largest number of data points is used as the height of the construction surface.
And S353, acquiring the reference height of the building ground.
The building ground reference height can be obtained by surveying and mapping, can be obtained from a building drawing, and the like. The construction ground reference height is used to indicate a height of a starting point of ground construction of each construction unit with respect to a horizontal plane.
And S354, determining the construction height of each building unit based on the construction surface height and the building ground reference height.
The electronic equipment can determine the construction height of each building monomer by calculating the difference between the construction surface height and the building ground reference height.
According to the method for identifying the building construction height, the target single three-dimensional model is divided into sections, the number of point clouds is counted among the sections to determine the construction height, and the point clouds of the image data on the side vertical face of the three-dimensional model are sparse, so that the number of the point clouds is counted in the height direction in the section dividing mode, and the identification accuracy of the construction height is improved. When the construction progress is determined, the reference height of the building ground is combined, and the reference height is removed to reduce errors.
In some optional implementations of this embodiment, the step S352 may include:
(1) and counting the number of data points in each three-dimensional point cloud interval to determine at least two target three-dimensional point cloud intervals with the largest number.
(2) And when the at least two target three-dimensional point cloud intervals are continuous in height, determining the height of the construction surface of the building monomer based on the height average value of all data points in the at least two target three-dimensional point cloud intervals.
(3) And when the at least two target three-dimensional point cloud intervals are discontinuous in height, determining the target three-dimensional point cloud interval with the maximum data points in the at least two target three-dimensional point cloud intervals.
(4) And determining the height of the construction surface of the building monomer based on the height average value of all data points in the target three-dimensional point cloud interval with the most data points.
Specifically, the electronic device divides the target three-dimensional model of each building unit into a plurality of sections at intervals of a certain height (for example, 0.5m), and counts the number of points in each section. And screening three intervals with the highest point number from the three intervals, and taking the point elevation average value of the three intervals as the height of the required construction surface if the three intervals are continuous in space. And if the space is discontinuous, calculating the average value of the point elevation of the section with the largest number of points as the height of the required construction surface.
For the continuous interval condition, the height of the construction surface is determined through the height average value of all data points in the continuous at least two target three-dimensional point cloud intervals, and the accuracy of the height of the construction surface is improved. For the case of discontinuous intervals, errors may be caused, the errors are removed, the construction height is determined by only using the height average value of all data points in the target three-dimensional point cloud interval with the most data points, and the accuracy of the determined construction surface height can be ensured.
As some optional implementations of this embodiment, the method may further include:
(1) and acquiring the floor height of each building unit.
(2) And determining the construction progress of each single building body based on the construction height and the floor height of each single building body.
The floor height of each single building body is already determined in the design stage of the single building body, and the current construction layer number of each single building body can be determined by the ratio of the construction height to the floor height, namely the construction progress is determined.
Specifically, the step (2) may include:
and 2.1) determining the actual construction floor of the building unit at the current acquisition time based on the construction height and the floor height.
After the electronic equipment determines the construction height, the actual construction floor corresponding to the current acquisition time of the building monomer can be determined by utilizing the ratio of the construction height to the floor height. For example, if the construction height corresponding to the current acquisition time is 25m and the floor height is 3m, it may be determined that the actual construction floor is the 9 th floor.
And 2.2) comparing the current acquisition time corresponding to the actual construction floor with the planned time of each floor to determine the construction progress of the single building.
According to the floor schedule setting, the construction schedule of the floor is uninterrupted, namely if the starting time of the bottom plan of the monomer structure is A, the finishing time of the top plan is B, and the detection time X is within the plan interval of a certain floor as long as the A is not less than X and not more than B.
Assuming that the plan starting time of the Fn floor is N (N is more than or equal to A), the plan finishing time is M (M is less than or equal to B), if the detection time is X, and when N is less than or equal to X < M, the plan floor is Fn; when X is larger than or equal to B, completion is displayed; when X < A, it is shown not to start.
For example: as shown in FIG. 8, the floor plan time is set for a single 6-storey building, the plan start time of F01 is 2020-10-18, and the plan finish time of the top F06 is 2021-03-22. If the detection time is 2020-10-15, the monomer is not planned to start construction; if the detection time is 2021-3-8, the planned floor is F03; and if the detection time is any day after 2021-3-22, the monomer is planned to be completed.
And the electronic equipment compares the current acquisition time corresponding to the actual construction floor with the planned time of each floor. If the actual construction floor is F02 and the current acquisition time is 2021-02-26, the construction progress is normal; and if the actual construction floor is F02 and the current acquisition time is 2021-03-06, the construction progress is delayed.
After the electronic equipment determines the construction height, the actual construction floor corresponding to the current acquisition time of the building monomer can be determined by utilizing the ratio of the construction height to the floor height. For example, if the construction height corresponding to the current acquisition time is 25m and the floor height is 3m, it may be determined that the actual construction floor is the 9 th floor.
In some optional implementations of this embodiment, the "comparing the current collecting time corresponding to the actual construction floor with the planned time of each floor, and determining the construction progress of the building unit" may include:
(1) and displaying the target monomer three-dimensional model of each building monomer on a progress display interface.
As described above, the target cell three-dimensional model is a real-world model of each building cell. And displaying the target monomer three-dimensional model of each building monomer on a progress display interface of the electronic equipment. For example, if a plurality of building units, green areas, and the like are included in the target construction area, a three-dimensional real-scene model of each target is correspondingly displayed.
(2) And comparing the current acquisition time corresponding to the actual construction floor with the planned time of each floor to determine the construction progress of the single building.
And the electronic equipment determines the construction progress of the single building based on the relationship between the planned time of each floor and the current acquisition time corresponding to the actual construction floor, wherein the specific performance is normal or delayed.
(3) And determining a corresponding progress mark based on the construction progress.
Progress marks corresponding to the construction progress can be distinguished by adopting colors or filling, and the progress marks corresponding to different construction progresses are different. The progress mark corresponding to the construction progress is not limited at all. For example, as shown in fig. 9, the schedule markings are represented by blocks of different colors, the height of which corresponds to the planned floor height of each building unit. If the progress mark is normal, adopting a green block to represent the progress mark; if the delay is delayed, a red block is used for representing the progress mark.
(4) And superposing and displaying the corresponding progress mark on the target monomer three-dimensional model.
The electronic device displays the progress mark on the corresponding target monomer three-dimensional model in an overlapping manner, as shown in fig. 9, corresponding to the same target monomer three-dimensional model, and the corresponding block is overlapped outside the target monomer three-dimensional model. The color of the block is different, and the corresponding construction progress is different.
In some optional implementations of this embodiment, as shown in fig. 9, the progress display interface includes a model display area and a collection time display area, and the collection time display area is used for displaying the collection time of the image data in the target construction area. Based on this, the method for determining the construction progress may further include:
(1) in response to a selection operation of the acquisition time display area, a target acquisition time is determined.
(2) And displaying the three-dimensional model of each target monomer and the progress mark thereof corresponding to the target acquisition time in the model display area.
The acquisition time display area is used for displaying the acquisition time of the image data in the target construction area, and corresponding acquisition time is provided with a corresponding target monomer three-dimensional model and a progress mark thereof. For example, as shown in fig. 9, a plurality of acquisition times, 2021-10-10, 2021-10-15, 2021-10-20, 2021-10-25, 2021-10-31, are displayed in the acquisition time display area of the progress display interface. And when the user selects one of the acquisition times, displaying each target monomer three-dimensional model corresponding to the acquisition time and the progress mark thereof in the model display area. For example, according to the time of the unmanned aerial vehicle for acquiring the field progress, the generated real-scene model is displayed in the reverse order of the shooting time, and interactive operation is supported to view each angle and area of the model.
As shown in fig. 9, the progress information such as the actual floor and the planned floor of each target individual three-dimensional model is displayed on the generated complete parcel real scene model. The monomer with normal progress is displayed as a blue block, the progress delay is displayed as a red block, and the information of the actual floor, the planned floor, the floor height and the floor height of the current monomer can be viewed by hovering a mouse.
Corresponding to each acquisition time, the corresponding target monomer three-dimensional model and the progress mark are arranged, so that the progress state at each acquisition time point can be intuitively reviewed.
In yet other alternative embodiments of this embodiment, as shown in fig. 9, the progress display interface further includes a floor status tracking area. Based on this, the method for determining the construction progress may further include:
(1) and determining the target building monomer in response to the selection operation of the target monomer three-dimensional model of the model display area.
(2) And displaying the floor states of the target building monomer at each acquisition time in the floor state tracking area, wherein the floor states comprise normal states or postponed states.
And displaying each target monomer three-dimensional model in the model display area, selecting the target monomer three-dimensional model by a user according to the requirement, and correspondingly, responding to the selection operation of the user by the electronic equipment to determine the target building monomer. And displaying the floor state of the target building monomer at each acquisition time in the floor state tracking area, and displaying the actual floor and the planned floor of the target building monomer at each acquisition time and the floor state of the target building monomer.
And the floor states of all acquisition times are visually displayed in the floor state tracking area from the selected dimensionality of the target single three-dimensional model, so that the construction states of floors are displayed through multiple dimensionalities.
In some optional embodiments of this embodiment, when the construction progress is determined, the construction progress of the building units may also be determined according to a size relationship between the construction height of each building unit and the planned height.
As a specific application example of this embodiment, as shown in fig. 6, the method for identifying the building construction height includes:
(1) the unmanned aerial vehicle collects image data of a target construction area;
(2) reconstructing DSM data based on the influence data to obtain a three-dimensional model of a target construction area;
(3) carrying out registration correction on DSM data by using a ground reference point to obtain a target three-dimensional model;
(4) determining a single building area through manual interactive drawing or surveying and mapping data;
(5) segmenting the target three-dimensional model by utilizing the building monomer area to obtain a target monomer three-dimensional model;
(6) performing height analysis on the target monomer three-dimensional model to determine the height of a construction surface;
(7) and determining the construction height by combining the height of the construction surface and the building ground reference, namely determining the construction progress.
The method can be realized without depending on personnel feedback, and the construction progress can be fed back to the decision-making layer according to the reconstruction data. The method is higher in efficiency, and has obvious progress tracking advantages for large scenes or multiple construction building groups. Compared with a method for acquiring hardware equipment, the method 1) has no additional hardware equipment, so that corresponding cost, installation and maintenance are not needed; 2) extra time consumption of a crane operator is not needed, so that the construction operation progress is not influenced; 3) is independent of construction site, so that the method is suitable for various construction sites at any time and any place; 4) the system can still normally operate under the condition of power failure of a construction site. Compared with the scheme of the unmanned aerial vehicle which needs ground phase control points, the method does not need manual field operation to set the ground control points, the precision is guaranteed, and time and labor are saved.
In this embodiment, a building construction height identification device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The present embodiment provides an identification apparatus for building construction height, as shown in fig. 7, including:
a first obtaining module 41, configured to obtain image data of a target construction area to determine a three-dimensional model of the target construction area;
the registration module 42 is configured to perform homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model;
a second obtaining module 43, configured to obtain each building monomer area in the target construction area;
the segmentation module is used for segmenting the target three-dimensional model based on each building monomer area and determining the target monomer three-dimensional model of each building monomer;
and the determining module 44 is configured to perform height analysis on each target single three-dimensional model to determine the construction height of each building single.
The building construction level identification means in this embodiment is in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory executing one or more software or fixed programs, and/or other devices that can provide the above-described functionality.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
The embodiment of the invention also provides electronic equipment which is provided with the building construction height identification device shown in the figure 7.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an electronic device according to an alternative embodiment of the present invention, and as shown in fig. 2, the electronic device may include: at least one processor 301, such as a CPU (Central Processing Unit), at least one communication interface 303, memory 304, and at least one communication bus 302. Wherein a communication bus 302 is used to enable the connection communication between these components. The communication interface 303 may include a Display (Display) and a Keyboard (Keyboard), and the optional communication interface 303 may further include a standard wired interface and a standard wireless interface. The Memory 304 may be a high-speed RAM (Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 304 may optionally be at least one storage device located remotely from the processor 301. Wherein the processor 301 may be combined with the apparatus described in fig. 5, the memory 304 stores an application program, and the processor 301 calls the program code stored in the memory 304 for performing any of the above-mentioned method steps.
The communication bus 302 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 302 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but it is not intended that there be only one bus or one type of bus.
The memory 304 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the memory 304 may also comprise a combination of the above-described types of memory.
The processor 301 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.
The processor 301 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
Optionally, the memory 304 is also used to store program instructions. Processor 301 may invoke program instructions to implement a method of building construction height identification as shown in any of the embodiments of the present application.
The embodiment of the invention also provides a non-transitory computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the building construction height identification method in any method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (11)
1. A building construction height identification method is characterized by comprising the following steps:
acquiring image data of a target construction area to determine a three-dimensional model of the target construction area;
performing homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model;
acquiring each building monomer area in the target construction area;
dividing the target three-dimensional model based on each building monomer area, and determining the target monomer three-dimensional model of each building monomer;
and performing height analysis on the three-dimensional model of each target monomer to determine the construction height of each building monomer.
2. The method of claim 1, wherein the homonymous point registering the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model comprises:
converting the position information of the ground reference point into position information in the three-dimensional model;
and performing position registration based on the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
3. The method of claim 2, wherein determining the target three-dimensional model based on the position registration of the converted position information with position information of position points in the three-dimensional model corresponding to the ground reference point comprises:
and respectively carrying out horizontal and elevation registration by using the converted position information and the position information of the position point corresponding to the ground reference point in the three-dimensional model, and determining the target three-dimensional model.
4. The method of claim 1, wherein the target monomer three-dimensional model is a three-dimensional point cloud model, and the step of performing height analysis on each target monomer three-dimensional model to determine the construction height of each building monomer comprises:
carrying out interval division on each target monomer three-dimensional model based on a preset height to obtain a plurality of three-dimensional point cloud intervals;
determining the height of the construction surface of each building monomer based on the number of data points in each three-dimensional point cloud interval;
acquiring a building ground reference height;
and determining the construction height of each building unit based on the construction surface height and the building ground reference height.
5. The method of claim 4, wherein determining the construction surface height of each of the building monomers based on the number of data points within each of the three-dimensional point cloud intervals comprises:
counting the number of data points in each three-dimensional point cloud interval to determine at least two target three-dimensional point cloud intervals with the largest number;
and when the at least two target three-dimensional point cloud intervals are continuous in height, determining the height of the construction surface of the building monomer based on the height average value of all data points in the at least two target three-dimensional point cloud intervals.
6. The method of claim 5, wherein determining the construction surface height of each of the building monomers based on the number of data points within each of the three-dimensional point cloud intervals further comprises:
when the at least two target three-dimensional point cloud intervals are discontinuous in height, determining a target three-dimensional point cloud interval with the largest data points in the at least two target three-dimensional point cloud intervals;
and determining the height of the construction surface of the building monomer based on the height average value of all data points in the target three-dimensional point cloud interval with the most data points.
7. The method of claim 1, further comprising:
acquiring the floor height of each building unit;
and determining the construction progress of each single building body based on the construction height and the floor height of each single building body.
8. An identification device of building construction height, characterized by comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring image data of a target construction area so as to determine a three-dimensional model of the target construction area;
the registration module is used for carrying out homonymous point registration on the three-dimensional model based on the position information of the ground reference point of the target construction area to obtain a target three-dimensional model;
the second acquisition module is used for acquiring each building monomer area in the target construction area;
the segmentation module is used for segmenting the target three-dimensional model based on each building monomer area and determining the target monomer three-dimensional model of each building monomer;
and the determining module is used for performing height analysis on the three-dimensional model of each target monomer and determining the construction height of each building monomer.
9. An electronic device, comprising:
a memory and a processor, wherein the memory and the processor are connected with each other in a communication manner, the memory stores computer instructions, and the processor executes the computer instructions to execute the building construction height identification method according to any one of claims 1 to 7.
10. A computer-readable storage medium storing computer instructions for causing a computer to perform the method for identifying a building construction height of any one of claims 1-7.
11. A system for identifying a construction height, comprising:
the acquisition equipment is used for acquiring image data of a target construction area;
the aircraft is used for carrying the acquisition equipment;
the electronic device of claim 9, coupled to the collection device, for determining a construction height of each building unit.
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