JP6932616B2 - Construction volume data acquisition system - Google Patents

Description

The present invention relates to a system for acquiring construction volume data, and more specifically, a device for acquiring image data is installed at a position overlooking the construction structure to be constructed, and the acquired image data is obtained. It is related to a system for acquiring construction volume data by using it.

At the construction site of the construction structure, the site staff confirms the finished shape of the construction structure by visual inspection, surveying, quantity inspection, photography, etc. It is common to calculate the volume from etc. In this way, the current situation is that the work of acquiring the volume relies on manpower, and measures have been taken to reduce the work of on-site staff. For example, the patent documents shown below disclose techniques for saving labor in construction management of construction structures (see Patent Documents 1 to 3).

The technique described in Patent Document 1 is a photography management for calculating three-dimensional data of an object to be measured by setting a control point device and taking a picture at a construction site, specifying a control point, and the like. It's about the method.

In this photography management method, three-dimensional data of a finished product to be used for construction management is obtained from a series of digital image data taken in stereo. In other words, it is a technology that manages data related to each work process from planning preparation, shooting, measurement, and acquisition of finished products in a database, and shoots shooting conditions and image data based on project information such as the camera used and reference point data. Stereo model information such as point information and control point measurement data, three-dimensional measurement information such as three-dimensional measurement range, and finished form information such as breakline data are generated.

The technique described in Patent Document 2 is for grasping the three-dimensional shape of a construction work site and accurately informing the construction machine operator of the relationship between the tension and the current finished shape, the travelable range, the dangerous range, and the like. It is related to the image generation system in the field.

In this image generation system, a plurality of camera poles including stereo cameras composed of a plurality of cameras are arranged at different locations, and each stereo camera captures a construction work site. Each stereo camera stereo-processes the captured image to obtain a distance image. In addition, the host device that has acquired the distance image from each stereo camera integrates the distance image to generate three-dimensional model data of the construction work site. Then, when the construction machine operator specifies an arbitrary virtual viewpoint from the driver's seat to the host device, the host device draws an image of the construction work site from the designated virtual viewpoint based on the three-dimensional model data. It is sent to the construction machine and displayed in the driver's seat.

The technique described in Patent Document 3 relates to a finished shape visualization system that can intuitively grasp the quality of the finished shape of a three-dimensional structure.

This finished form visualization system includes a computer in which spreadsheet software, three-dimensional CAD model display software, and a visualization data generation program are installed. The program is a data acquisition unit that acquires data of coordinate values, design values, and actual measurement values of finished products at measurement points on a three-dimensional structure based on the data input to the data input table by table calculation software, and 3 It is equipped with a display data generation unit that generates finished product display data for displaying the difference between the design value and the measured value as a contour diagram at the surface position of the dimensional structure. Then, the computer operates the display software and uses the data to display the finished contour diagram in three dimensions.

Japanese Unexamined Patent Publication No. 10-246628 Japanese Unexamined Patent Publication No. 2003-333590 Japanese Unexamined Patent Publication No. 2017-123061

As described above, a series of operations from confirming the finished product to obtaining the volume requires a complicated procedure, and it is necessary to reduce the workload of the field staff. Further, when these series of operations are performed manually, there is a problem that a large amount of time is required. Furthermore, since it is necessary to grasp the relationship between the progress of construction work and labor costs and material costs, it takes a long time for staff who are not accustomed to the work to calculate the volume.

In particular, at a vast civil engineering construction site, when performing a series of work from confirming the finished shape to obtaining the volume, there are areas that workers cannot enter, or structures that have already been built or constructed. It is conceivable that the situation at the site cannot be accurately grasped from the side by hiding in the above, and in this case, there is a problem that a great deal of time and labor is required.

The techniques described in Patent Documents 1 to 3 are techniques for generating and managing finished data using a computer, but there are areas where workers cannot enter, or they have already been constructed or created. No consideration is given to acquiring volume data at a construction site where the situation of the site cannot be accurately grasped from the lateral direction because it is hidden behind the constructed structure.

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a construction volume data acquisition system capable of quickly and accurately acquiring volume data and volume data.

The construction volume data acquisition system according to the present invention has the following features in order to achieve the above-mentioned object. That is, the construction volume data acquisition system according to the present invention includes an image data acquisition means, a construction status data generation means, a finished form data analysis means, a construction model data acquisition means, and a volume data calculation means. It is a feature. In the present invention, the image data is data for expressing an image three-dimensionally, for example, three-dimensional pixel data.

The image data acquisition means is attached to an appropriate position of a crane installed at the construction site so as to give a bird's-eye view of the construction structure to be constructed, and is used to acquire a plurality of image data in the construction process of the construction structure. It is a means. The construction status data generation means is a means for generating construction status data composed of continuously integrated three-dimensional three-dimensional pixel data based on the acquired image data.

The finished product data analysis means is a means for performing image analysis by using the generated construction status data as input information and using deep learning, and outputting the finished product data at the current stage as an analysis result. The construction model data acquisition means is a means for acquiring construction model data related to the construction structure to be constructed. The volume data calculation means is a means for calculating volume data based on the analyzed volume data and the acquired construction model data.

Further, in addition to the above-described configuration, the image data acquisition means can sequentially acquire image data according to the progress of construction. In this case, based on the sequentially acquired image data, the construction status data is generated by the construction status data generation means, the finished product data is analyzed by the finished product data analysis means, and the volume data is calculated by the volume data calculating means. ..

The construction volume data acquisition system having such a configuration is composed of an optical device such as an electronic camera, a computer and its accessories, and a program installed in the computer. In the construction volume data acquisition system, image data in the construction process of a construction structure is acquired by an image data acquisition means consisting of an optical device such as an electronic camera. At this time, the optical equipment such as an electronic camera is installed at a position where the construction site can be overlooked, and the image data related to the construction status can be acquired in a state of being viewed from above.

The construction status data generation means continuously generates integrated three-dimensional construction status data based on the acquired image data. This construction status data is a three-dimensional image of the construction site, and the construction status can be grasped.

Then, by the function of the finished product data analysis means, deep learning is performed on the construction status data to analyze the finished product data. In addition, the construction model data (for example, BIM model data) of the construction structure to be constructed is acquired by the function of the construction model data acquisition means.

Then, the volume data is calculated based on the analyzed volume data and the acquired construction model data by the function of the volume data calculation means. For example, by comparing the finished product data with the BIM model data and grasping what percentage of the design height the current height of the building is being constructed, the volume data according to the progress of the construction status is calculated. can do. Furthermore, construction progress data can be generated based on the calculated volume data.

The calculated volume data can be displayed on the display screen of the liquid crystal display device or printed by a printer. Further, the volume data may be stored in a storage device such as an HDD. Further, by sequentially storing the finished product data and the finished product data according to the progress of the construction, it is possible to confirm the bar arrangement position and the like after the construction is completed.

In the construction volume data acquisition system according to the present invention, an image data acquisition means consisting of an optical device such as an electronic camera is installed at a position overlooking the construction structure to be constructed, and image data in the construction process of the construction structure is acquired. Therefore, even if it is hidden in an area where workers cannot enter or a structure that has already been constructed or constructed and the situation of the site cannot be accurately grasped from the side, image data can be easily and surely acquired. can do.

In addition, since deep learning is performed on the construction status data and the finished product data is analyzed, accurate finished product data can be quickly acquired. Further, since the accurate finished product data is acquired, the calculation of the volume data becomes easy and accurate.

As described above, according to the construction volume data acquisition system according to the present invention, it is possible to quickly and accurately acquire the volume data and the volume data without relying on the skill level of the worker. In addition, since the finished product data and the volume data can be acquired in a timely manner during the construction process, not only can the progress of the construction be accurately grasped, but also the arrangement position of the members can be confirmed after the construction is completed. ..

The block diagram which shows the structure of the construction volume data acquisition system which concerns on embodiment of this invention. Explanatory drawing which shows the relationship between a three-dimensional image and a volume. Schematic diagram showing the relationship between the construction process and the volume.

Hereinafter, the construction volume data acquisition system according to the embodiment of the present invention will be described with reference to the drawings. 1 to 3 show a construction volume data acquisition system according to an embodiment of the present invention, FIG. 1 is a block diagram showing a system configuration, FIG. 2 is an explanatory diagram showing a relationship between a three-dimensional image and a volume, and FIG. Is a schematic diagram showing the relationship between the construction process and the volume.

<Overview of construction volume data acquisition system>
The construction volume data acquisition system according to the embodiment of the present invention is for acquiring construction volume data by using, for example, image data captured by an electronic camera installed at a position overlooking the construction structure to be constructed. As shown in FIG. 1, the system includes an image data acquisition means 10, a construction status data generation means 20, a finished product data analysis means 30, a construction model data acquisition means 50, and a volume data calculation means 40. I have.

Further, in addition to the above-mentioned means, the construction model data storage means 60 for storing the construction model data and the display control means 70 for performing display control of various data may be provided. The finished product data and the volume data are displayed on the display means 80 under the control of the display control means 70.

Hereinafter, each means will be described. In addition, each means shall realize the equipment and accessory devices for exerting each function, the software that exerts the function in cooperation with the hardware resources by being read into the computer, and the equivalent function. It refers to a logic circuit or the like that can be used.

<Image data acquisition means>
The image data acquisition means 10 is a means for acquiring image data in the construction process of the construction target to be constructed, and is installed at a position where the construction target to be constructed is overlooked. The image data acquisition means 10 can be configured by, for example, a 3D camera. The 3D camera may be a two-lens imaging system or a monocular imaging system using a polarizer. Further, instead of using a 3D camera, even if image data of a plurality of angles is acquired for the construction structure to be constructed and image processing is performed using these image data, three-dimensional pixel data can be generated. good.

The image data acquired by the image data acquisition means 10 is stored in a temporary storage area such as a RAM and used for generating construction status data. The image data will be acquired sequentially as the construction progresses. Then, the construction status data is generated by the construction status data generating means 20, the finished product data is analyzed by the finished product data analyzing means 30, and the finished product data is calculated by the volume data calculating means 40 in sequence as the construction progresses. At the installation location of the image data acquisition means 10, a battery for supplying power to the image data acquisition means 10 and a data transmission means for transmitting the image data acquired by the image data acquisition means 10 may be installed. preferable.

The place where the image data acquisition means 10 is installed is a position for looking down on the construction structure to be constructed, for example, an appropriate position of the crane 90 installed at the construction site (for example, near the tip of a jib or a hook). The image data acquisition means 10 can be attached to the. A crane 90 is generally installed at the construction site of a construction structure, and if the image data acquisition means 10 is hung using this crane 90, a new image data acquisition means 10 can be attached. It is not necessary to provide a special device, and image data can be automatically acquired when the load is transported. This not only facilitates the installation of the image data acquisition means 10, but also reduces the cost because no special equipment is required.

Further, the image data acquisition means 10 is not limited to one, and two or more may be installed. By attaching the image data acquisition means 10 to an appropriate position of the crane 90, if the jib or hook is moved during the crane work, the bird's-eye view image data of the construction site can be acquired along with the movement of the jib or hook. can. If the bird's-eye view image data of the entire construction structure to be constructed cannot be acquired only by the normal crane operation, the jib or hook may be moved to acquire the bird's-eye view image data.

Further, the place where the image data acquisition means 10 is installed is not limited to the jib and hook of the crane 90, and the roof of the building constructed around the construction site can be viewed as long as the construction structure to be constructed can be overlooked. Or it may be the upper part of the tower. In this case, a plurality of image data acquisition means 10 may be installed so that the bird's-eye view image data of the entire construction structure to be constructed can be acquired.

In the present embodiment, as shown in FIGS. 1 and 3, the crane 90 functions as a moving means for moving the image data acquisition means 10, but other devices or the like can be used as the moving means. For example, the wire rope can be hung over the construction site, and a moving device can be attached to the wire rope to move the image data acquisition means 10 by the moving device. Further, the image data acquisition means 10 may be moved by using the drone unless it is an area where the flight of the drone is restricted, such as around an airport or a densely populated area.

<Construction status data generation means>
The construction status data generation means 20 is a means for continuously and integrally generating three-dimensional construction status data based on the acquired image data, and is, for example, a program for generating a composite image and the same. Consists of the computer on which you have installed. A continuous and integrated three-dimensional image is an image as if you were visually observing the actual construction site, and reproduces the state of looking around and patrolling the construction site. It is a thing. That is, by generating the construction status data, it is possible to create a virtual construction site space (a virtual space in which all directions can be visually recognized). Specifically, a 3D mesh is generated based on the acquired plurality of image data (2D).

<Finished data analysis means>
The finished product data analysis means 30 is a means for performing deep learning on the generated construction status data and analyzing the finished product data. For example, from a program for performing image analysis and a computer on which the finished product data analysis means 30 is installed. Become. By performing deep learning and analyzing the construction status data, it is possible to acquire the finished product data at the current stage. It is preferable that deep learning for the construction status data is widely carried out not only for the construction structure for which the finished product data is to be acquired but also for other construction structures.

<Construction model data acquisition means>
The construction model data acquisition means 50 is a means for acquiring construction model data related to the construction structure to be constructed. The construction model data acquired by the construction model data acquisition means 50 is data created for each construction structure and is so-called BIM (Building Information Modeling) data, but may further include other data. .. The method of acquiring the construction model data is not particularly limited, and the construction model data input may be acquired each time for the construction structure to be constructed, or the construction model data created in advance may be read. May be obtained by.

Construction model data can be created using software such as a three-dimensional CAD application, and by creating not only completed data but also time-series according to the construction procedure, it will be created sequentially as the construction progresses. , It is possible to grasp whether or not accurate construction is performed by comparing the design data and the finished product data.

<Construction model data storage means>
The construction model data storage means 60 is a means for storing the construction model data acquired by the construction model data acquisition means 50, and can be configured by, for example, a large-capacity storage device such as an HDD or an SDD. The construction model data storage means 60 is preferably configured as a functional means of the server, and is installed on, for example, a cloud server.

In the present embodiment, the construction model data storage means 60 installed on the cloud server stores the construction model data of each construction structure, and the Internet, public telephone line, dedicated data communication line, wireless LAN line, and wired. By using an electronic communication line such as a LAN line alone or in combination, it is possible to access the cloud server, receive desired construction model data, or make changes to the construction model data.

<Volume data calculation means>
The volume data calculation means 40 is a means for calculating volume data based on the analyzed volume data and the acquired construction model data. For example, from a calculation program for calculating volume and a computer on which the volume data is installed. Become. The volume data calculation means 40 calculates the volume data by comparing the analyzed volume data with the acquired construction model data. The calculation of volume data will be described in detail later. In addition, in order to calculate the volume data easily, for example, as shown in FIG. 2, the finished form data is analyzed to grasp the construction status such as the construction of reinforcing bars, the construction of formwork, and the placement of wall concrete. Then, the volume data may be calculated according to the progress of the construction situation. The three-dimensional image shown in FIG. 2 is represented in two dimensions for convenience, but is actually represented in three dimensions.

<Display means>
As shown in FIG. 1, in the construction volume data acquisition system of the present embodiment, a display means 80 including a display control means 70 for controlling the display of a video signal, a liquid crystal display device for displaying various data, and the like. And have. The finished product data and the volume data are displayed by the display means 80 under the control of the display control means 70. As a result, the worker, the supervisor, and the like can confirm the finished product data and the volume data.

By displaying the analyzed volume data and the calculated volume data on the display screen of the display means 80, the worker or the supervisor can grasp the volume data and the volume data. Further, the finished product data and the finished product data may be printed by using a printer. As a result, forms related to the construction status can be automatically created. The numerical values of the volume data shown in FIGS. 2 and 3 are numerical values relative to the target volume, not absolute values with respect to the volume data at the completion of construction. In this way, the volume data can be expressed as a numerical value relative to the target.

<Procedure for acquiring volume data>
The procedure for acquiring the volume data using the above-mentioned construction volume data acquisition system will be described. For example, as shown in FIG. 3, it is assumed that the construction site of the condominium is photographed by an electronic camera (image data acquisition means 10) attached to the hook of the crane 90. In the example shown in Fig. 3, three 20-story condominiums are being constructed, the left building is under construction up to the 16th floor, the central building is under construction up to the 4th floor, and the right building is under construction. Now, let's assume that construction is progressing to the 10th floor.

In the example shown in FIG. 3, image data is acquired by the image data acquisition means 10, and the function of the construction status data generation means 20 continuously generates integrated three-dimensional construction status data, and the finished product data analysis means. When the volume data is analyzed by the function of 40 and the volume data is calculated by the function of the volume data calculation means 40, the volume of the left building in the skeleton construction is 80%, the volume of the center building is 20%, and the volume of the right building. The volume will be 50%.

More specifically, at the construction site of each construction structure, an electronic camera or the like installed at a position (for example, near the tip of a jib of a crane 90 or a hook) for a bird's-eye view of the construction structure to be constructed. Image data in the construction process of a construction structure is acquired (photographed) by using the image data acquisition means 10 composed of an optical device. At this time, the jib and hook of the crane 90 are moved so that there is no construction range in which the image data cannot be obtained, and the image data in the construction site of the construction structure is acquired (photographed).

The acquired image data is stored in an appropriate storage means (for example, RAM or HDD) as three-dimensional construction status data that is continuously integrated by the function of the construction status data generation means 20. Then, by the function of the finished product data analysis means 30, deep learning is performed on the construction status data to analyze the finished product data. Deep learning is machine learning for deriving the relationship between construction status data and finished product, and by performing deep learning on a large number of construction status data acquired from multiple construction sites, the finished product is even more accurate. You can analyze the data.

After the volume data is analyzed, the volume data is calculated based on the analyzed volume data and the acquired construction model data by the function of the volume data calculation means 40. In addition, as the construction progresses, the finished product data and the volume data are sequentially stored in a storage device such as an HDD, so that the data can be read out and the progress status of the construction can be easily and surely confirmed. can.

The acquisition of volume data in the construction work of a condominium will be described as an example. In order to construct an apartment, for example, excavation work, pile driving work, foundation work, skeleton work, interior work, exterior work, exterior work, etc. are performed. In addition, various works are carried out according to the difference in the construction method. Then, by comparing the finished product data analyzed based on the image data with the construction model data, it is possible to grasp to what stage the construction has progressed. The above-mentioned construction procedure is an example, and other construction procedures may be included or a part of the construction procedure may be omitted.

Further, if the total number of work types is used as the denominator and the number of work types currently completed is used as the numerator, it is possible to calculate the approximate data of the volume. For example, in condominium construction, the total number of works includes excavation work, pile driving work, foundation work, skeleton work, interior work and exterior work, and exterior work. In this case, the total number of work types is "6".

Here, by performing deep learning on the construction status data and analyzing the finished product data, it is possible to grasp which construction stage (work type) is currently in progress. For example, if the analysis result shows that the skeleton work has started, it is judged that the foundation work has been completed. That is, in this state, it is determined that the three types of work, excavation work, pile driving work, and foundation work, have been completed. Therefore, the volume is a value obtained by dividing the number of work types (3) for which construction has been completed by the total number of work types (6), and the volume data is 50%.

Further, as described above, when constructing a 20-story condominium, it is possible to calculate the volume of the skeleton work. In this case, if it is determined that the skeleton work up to the 12th floor has been completed, the volume of the skeleton work will be 12/20 = 60%. In other works, the partial volume can be calculated in the same way.

Although the construction work of the condominium has been described in the above-described embodiment, the application target of the construction work volume data acquisition system according to the present invention is not limited to such construction work, such as tunnel excavation work, filling work, etc. It can be applied to the acquisition of volume data of various construction structures including civil engineering work.

10 Image data acquisition means 20 Construction status data generation means 30 Finished form data analysis means 40 Volume data calculation means 50 Construction model data acquisition means 60 Construction model data storage means 70 Display control means 80 Display means 90 Crane

Claims (2)

An image data acquisition means that is attached to an appropriate position of a crane installed at a construction site and acquires a plurality of image data in the construction process of the construction structure so as to give a bird's-eye view of the construction structure to be constructed.
A construction status data generation means that generates construction status data consisting of three-dimensional three-dimensional pixel data that is continuously integrated based on the acquired image data.
An as-built data analysis means that performs image analysis by using the generated construction status data as input information and uses deep learning, and outputs the as-built data at the current stage as an analysis result.
Construction model data acquisition means for acquiring construction model data related to the construction structure, and
A volume data calculation means for calculating volume data based on the analyzed volume data and the acquired construction model data, and
A construction volume data acquisition system characterized by being equipped with. In the image data acquisition means, image data is sequentially acquired according to the progress of construction.
The construction status data is generated by the construction status data generating means, the finished product data is analyzed by the finished product data analyzing means, and the volume data is calculated by the volume data calculating means.
The construction volume data acquisition system according to claim 1 , wherein the construction volume data acquisition system is characterized in that.

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