JP7503813B2 - Construction Management System - Google Patents

Description

The present invention relates to a construction management system that manages compaction work.

In the field of construction, a process called compaction is carried out.
Compaction work for concrete is carried out during the pouring of concrete, with the aim of making the poured concrete dense. In the past, methods such as poking the concrete with a ram or hitting the formwork with a mallet were used, but nowadays, by inserting a machine called a vibrator into the concrete, it is possible to reduce the air bubbles contained in the concrete and make it dense. Patent Document 1 exemplifies a technique for managing the construction of compaction work for concrete.
Compaction work on the ground (bankments, roadbeds, slopes, etc.) is carried out for the purpose of preventing subsidence, etc. Compaction machines (rollers, plate compactors, etc.) are used to compact the ground, increasing the density of the ground and thereby improving the stability of the ground. Patent Document 2 exemplifies a technique for managing the construction of compaction work on the ground.

JP 2019-124110 A JP 2001-146708 A

In the conventional construction management methods for compaction work exemplified in Patent Documents 1 and 2, a display is mounted on the equipment or vehicle used by the worker, and the management information is displayed on the display so that the worker can visually confirm the management information.
However, such a method requires comparing the real environment with the display, which may reduce work efficiency or lead to work errors.

The present invention aims to solve the above-mentioned problems and provides a construction management system that improves the work efficiency and quality of compaction work.

According to the present invention, there is provided a construction management system for managing compaction work, comprising: a position management means for managing a self-position, which is a position where one or more pieces of construction equipment used in the compaction work or one or more workers operating the construction equipment are present; a construction area management means for managing a construction area, which is the range in which the compaction work is carried out; an additional information generation means for generating additional information based on the self-position and the construction area; an augmented reality display means for displaying the additional information by adding it to a real environment related to the compaction work; a marker detection means for detecting a marker installed in real space; and a work area acquisition means for acquiring work area data indicating the entire work range in which the compaction work is carried out. and a data acquisition means for acquiring the additional information indicating the construction area during the period in which the compaction work is being performed, wherein the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and each time the construction area expands during the compaction work , the construction area indicated by the additional information expands accordingly, and the construction area management means recognizes the work range indicated by the work area data by dividing it into a grid based on the position where the marker is detected, manages the construction area with one grid as the smallest unit, and is capable of changing the size of the one grid depending on the area to be constructed in one compaction work by the construction equipment.
According to the present invention, there is provided a construction management system for managing compaction work, comprising: a position management means for managing a self-position, which is the position of one or more vibrators that perform the compaction work by inserting them into poured concrete and vibrating it, or one or more workers operating the vibrators; a construction area management means for managing a construction area, which is the area in which the compaction work is performed; an additional information generation means for generating additional information based on the self-position and the construction area; an augmented reality display means for adding and displaying the additional information to a real environment related to the compaction work; a marker detection means for detecting a marker installed in real space; a data acquisition means for acquiring work area data indicating the entire work area in which the compaction work is performed; and an insertion position where the vibrator is inserted. and an insertion position detection means for detecting an insertion position of the construction area, wherein the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and each time the construction area expands during the compaction work, the construction area indicated by the additional information expands accordingly, the construction area management means recognizes the work range indicated by the work area data by dividing it into a grid based on the position where the marker is detected, manages the construction area with one grid as the smallest unit, and when the insertion position is within a specified area that is part of the one grid for a specified time, the one grid is regarded as the construction area, and when the insertion position is not within the specified area, causes an alarm means to alarm an abnormality in work.
According to the present invention, a construction management system for managing compaction work comprises a position management means for managing a self-position, which is the position of one or more construction equipment used in the compaction work or one or more workers operating the construction equipment, a construction area management means for managing a construction area, which is the range in which the compaction work is carried out, an additional information generation means for generating additional information based on the self-position and the construction area, an augmented reality display means for adding and displaying the additional information to a real environment related to the compaction work, and a data acquisition means for acquiring work area data indicating the entire work range in which the compaction work is carried out, and the additional information generation means acquires work area data indicating the entire work range in which the compaction work is carried out, Based on the corresponding history of changes in the self-position, the expansion history of the construction area, and the work area data, additional information indicating a recommended movement line for future compaction work is generated, and the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and each time the construction area expands during the compaction work, the construction area indicated by the additional information expands as necessary, displays the additional information indicating the history of changes in the self-position during the period in which the compaction work is being performed, and displays the additional information indicating the recommended movement line during the period in which the compaction work is being performed.
According to the present invention, there is provided a construction management system for managing compaction work, comprising: a position management means for managing a self-position, which is a position of one or more pieces of construction equipment used in the compaction work or one or more workers operating the construction equipment; a construction area management means for managing a construction area, which is an area in which the compaction work is carried out; an additional information generation means for generating additional information based on the self-position and the construction area; and an augmented reality display means for adding and displaying the additional information to a real environment related to the compaction work, wherein the augmented reality display means is realized by a mobile terminal attached to the construction equipment, and the mobile terminal is attached to The construction management system further includes an imaging means for imaging the work surface on which the construction equipment is performing compaction work, and the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and each time the construction area expands during the compaction work, the construction area indicated by the additional information expands accordingly, displaying the work surface imaged by the imaging means and superimposing the additional information indicating the construction area on the displayed work surface.When there are multiple mobile terminals, the augmented reality display means displays different additional information according to the imaging range of the imaging means.

The above invention can display the additional information indicating the work area, which indicates the range where compaction work has already been performed, in augmented reality by adding it to the real environment where compaction work is being carried out, so that the worker does not need to visually recognize the real environment and the additional information separately. Therefore, it is possible to improve the work efficiency of compaction work and also to improve the quality of its work.

A construction management system is provided that aims to improve the work efficiency and quality of compaction work.

FIG. 2A is a system configuration diagram of a construction management system, and FIG. 2B is a functional configuration diagram of a tablet terminal. FIG. 13 illustrates an operator of the vibrator. FIG. FIG. 13 is a schematic diagram showing the expansion of a construction area and a change in the robot's own position. FIG. 2 is a diagram showing a display state of a tablet terminal. FIG. 13 illustrates an operator of the vibrator.

Embodiments of the present invention will be described below with reference to the drawings. Note that in all drawings, similar components are given the same reference numerals and descriptions will be omitted where appropriate.

<Configuration of the construction management system 100>
First, the configuration of a construction management system 100 according to the present invention will be described.
FIG. 1( a ) is a system configuration diagram relating to a construction management system 100 , and FIG. 1( b ) is a functional configuration diagram relating to a tablet terminal 11 .
FIG. 2 is a diagram showing an operator U1 of the vibrator M1.

The construction management system 100 includes three tablet terminals 10 (a tablet terminal 11, a tablet terminal 12, and a tablet terminal 13). The tablet terminals 10 are configured to be able to communicate with each other via a network 20.
Here, tablet terminal 10 is a general term for tablet terminal 11, tablet terminal 12, and tablet terminal 13. In the following description, unless otherwise specified, it is assumed that the functions possessed by any one of tablet terminal 11, tablet terminal 12, and tablet terminal 13 are also possessed by the other terminals.
The network 20 is a computer network that enables communication connections between multiple tablet terminals 10, and the communication connections may be realized wirelessly, wired, or a combination of wireless and wired.
Although FIG. 1A illustrates three tablet terminals 10 that can be connected for communication via a network 20, they may be configured to be directly connected for communication via their own wireless communication functions.

The construction management system 100 in this embodiment is used for managing the construction of compaction work using a vibrator during pouring of concrete. Specifically, the tablet terminal 10 is attached to the vibrator used for the compaction work by providing a holder (not shown) on the vibrator, and various additional information managed by the tablet terminal 10 is displayed on the touch panel of the tablet terminal 10, thereby assisting the work with the vibrator.
2, in this embodiment, a tablet terminal 11 is attached to the vibrator M1 operated by the worker U1, and various additional information is displayed on the tablet terminal 11. Although not shown, a tablet terminal 12 is attached to the vibrator M2 operated by the worker U2, and various additional information is displayed on the tablet terminal 12. The tablet terminal 13 is used by the supervisor of the compaction work, and is not attached to the vibrator. Here, the supervisor is the person in charge of the compaction work, and may be considered to be one of the workers involved in the compaction work.

As shown in FIG. 1(a), the tablet terminal 11 has a built-in camera 111, a touch panel 112, and a control means 113.

The tablet terminal 11 is attached to the vibrator M1 so that the lens (not shown) of the built-in camera 111 provided on the back side of the tablet terminal 11 faces the tip of the vibrator M1 (the direction of insertion into the concrete). This allows the built-in camera 111 to capture an image of the work surface (the upper surface of the poured concrete) on which the vibrator M1 performs compaction work. The moving images captured by the built-in camera 111 are displayed on the touch panel 112 at any time (in real time).

The touch panel 112 displays the above moving images and various additional information (described later) in an augmented reality manner, and functions as an augmented reality display unit according to the present invention. The touch panel 112 also functions as an operation input unit that accepts operations by the worker U1 on the tablet terminal 11.
Here, the augmented reality display is generally referred to as AR (Augmented Reality), and refers to additionally displaying virtual information generated by a computer in addition to the display of the real world. In this embodiment, this virtual information is referred to as "additional information."

The control means 113 is a means for controlling various processes related to the tablet terminal 11 (including the display process of the touch panel 112), and is composed of a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a ROM (Read Only Memory), a RAM (Random access memory), etc., which are not shown.

As shown in Figure 1 (b), the tablet terminal 11 has a marker detection means 1101, a position management means 1102, a construction area management means 1103, a data acquisition means 1104, an insertion position detection means 1105, and an additional information generation means 1106.
The marker detection means 1101 detects a marker placed in the real space.
The position management means 1102 manages the self-position, which is the position of the workers (worker U1 and worker U2) operating the vibrators (vibrator M1 and vibrator M2) used in the compaction work.
The construction area management means 1103 manages the construction area, which is the range in which compaction work has been carried out.
The data acquisition means 1104 acquires work area data indicating the entire work range in which compaction work is performed.
The insertion position detection means 1105 detects the insertion position at which the vibrator is inserted.
The additional information generating means 1106 generates additional information based on the self-position and the construction area described above.
Although details will be described later, the self-positions of the workers U1 and U2 in this embodiment are actually position information of the tablet terminals 11 and 12, which are in the hands of the workers U1 and U2, respectively, and can be treated as being substantially equal to their own positions. Also, the tablet terminals 11 and 12 are attached to the vibrators M1 and M2, respectively, and therefore the self-positions of the workers U1 and U2 can be treated as being substantially equal to the position information of the vibrators M1 and M2.

<Functions of the tablet terminal 11>
Next, each of the functions of the tablet terminal 11 described above will be described in detail.

The data acquisition means 1104 acquires various data from the tablet terminal 10 via the network 20 or from an external device (not shown). The data acquired by the data acquisition means 1104 includes the above-mentioned work area data, and may also include position information of the tablet terminal 10 (corresponding to the above-mentioned self-position), image information related to moving images captured by the tablet terminal 10, operation information related to the operator's operation accepted by the tablet terminal 10, etc.

The marker detection means 1101 detects the marker captured in the video captured by the tablet terminal 10 through image processing. There are no particular limitations on the method for achieving this detection, but for example, a marker that is a two-dimensional code may be attached near the work area of the compaction work (preferably outside the work area), and the marker detection means 1101 may detect the marker by reading the two-dimensional code.

The position management unit 1102 recognizes the position information of the tablet terminal 11 as the own position of the worker U1, and recognizes the position information of the tablet terminal 12 as the own position of the worker U2.
The method by which the position management unit 1102 manages the position information of the tablet terminal 11 and the tablet terminal 12 is not particularly limited, but for example, the position of the tablet terminal 11 and the tablet terminal 12 may be managed in the working range indicated by the working area data based on the position of the marker detected by the marker detection unit 1101. Here, it is preferable that the position management unit 1102 determines each position information by combining the result of image analysis of the object photographed by the tablet terminal 10 and the result of measurement by an inertial measurement unit (IMU) (not shown) provided in the tablet terminal 10 with respect to the above working area data. Furthermore, if the tablet terminal 10 is equipped with a LIDAR (Light Detection and Ranging, Laser Imaging Detection and Ranging) (not shown), the position management unit 1102 may be realized by applying the LIDAR.

The insertion position detection means 1105 detects the depth to which the worker inserted the vibrator into the concrete surface CS and the position to which the worker inserted the vibrator. There are no particular limitations on the method for realizing detection by the insertion position detection means 1105, but for example, detection can be based on the attitude of the tablet terminal 10 measured by an inertial measurement unit provided in the tablet terminal 10.
3 is a schematic diagram of the vibrator M1. As shown in FIG. 3(a), the tablet terminal 11 is attached to the vibrator M1 so that the shooting direction SD of the tablet terminal 11 faces the tip of the vibration part (the part that is inserted into the concrete and vibrates) of the vibrator M1. At this time, the distance D1 from the mounting position of the tablet terminal 11 to the tip of the vibrator M1 is registered in the tablet terminal 11.
The tablet terminal 11 has a function of measuring the attitude of the tablet terminal 11 and the distance from the tablet terminal 11 to the subject by analyzing an image captured by the built-in camera 111. The insertion position detection means 1105 can detect the insertion depth and insertion position of the vibrator M1 by applying this function. First, the insertion position detection means 1105 measures the distance D2 from the mounting position of the tablet terminal 11 to the insertion position of the vibrator M1, and sets (distance D1-distance D2) as the insertion depth of the vibrator M1. In addition, the insertion position detection means 1105 can obtain the angle θ formed by the shooting direction SD and the gravity direction GD by measuring the attitude of the tablet terminal 11, and detect the position of the distance D1 in the shooting direction SD from the mounting position of the tablet terminal 11 (its own position managed by the position management means 1102) (the position of (distance D1 x sin θ) from the mounting position of the tablet terminal 11 if only the horizontal component is considered) as the insertion position of the vibrator M1.

The construction area management means 1103 recognizes the work range indicated by the work area data acquired by the data acquisition means 1104 by dividing it into a grid based on the position of the marker detected by the marker detection means 1101, and manages the construction area with one grid as the smallest unit.
3B is a schematic diagram showing the relationship between the insertion position IP1 of the vibrator M1, the construction area CA1 set around the insertion position IP1, and the range A1 to be constructed by one compaction operation by the vibrator M1. The insertion position IP1 is approximately equal to the diameter of the vibration part of the vibrator M1. The ratio of the range A1 to the insertion position IP1 changes depending on the vibration strength of the vibrator M1.
Here, as shown in Fig. 3(b), it is preferable that one grid, which is the smallest unit of the construction area CA1, is set as a square inscribed in the range A1. Therefore, it is preferable that the construction area management means 1103 changes the size of one grid according to the size of the range A1 (i.e., the diameter of the vibration part of the vibrator M1 and the vibration strength of the vibrator M1).
By performing the above-mentioned management, the construction area management means 1103 can finely manage the construction area where the concrete is compacted using a vibrator, thereby improving the quality of the work.

When the insertion position detection means 1105 detects that the vibrator has been inserted into the concrete surface, the construction area management means 1103 determines whether the insertion position is within a specified area defined at the center of one grid.
When the judgment is positive (i.e., when the insertion position of the vibrator is within a specified area), the construction area management means 1103 sets the grid as the construction area, provided that the time is a specified time.
Furthermore, when the determination is negative (i.e., when the insertion position of the vibrator is not within a predetermined area), the construction area management means 1103 causes the notification means to notify an abnormality in work.
Here, the predetermined area is preferably a part of one grid (local area) and is larger than the diameter of the vibrating part of the vibrator. Here, the predetermined time is a recommended time required for one compaction operation by the vibrator, and is preferably determined with a certain tolerance (e.g., 10 to 20 seconds). The above-mentioned predetermined area and predetermined time may be arbitrarily determined by the worker, or may be determined automatically (by computer processing) based on the construction conditions of the compaction operation.
Here, the notification by the notification means is not particularly limited as long as it is in a form that can be recognized by the worker performing the compaction work, and may be a display output by the tablet terminal 10, an audio output by the tablet terminal 10, or a combination of these.
By making the above-mentioned judgments using the construction area management means 1103, workers can be encouraged to perform accurate compaction work, and the work quality can be maintained at a certain level or above regardless of the worker's level of experience.

The additional information generation means 1106 generates additional information to be displayed in augmented reality on the tablet terminal 10 based on the processing results of the various functions described above (in particular, the self-location managed by the location management means 1102 and the construction area managed by the construction area management means 1103).
Examples of additional information generated by the additional information generating unit 1106, that is, virtual information displayed in augmented reality by the tablet terminal 10, include the following.
(a) An overall view of the entire area of the compaction work as seen from above. (b) A grid-like division of the compaction work area. (c) A history of the expansion of the work area during the period in which the compaction work was being carried out (hereinafter referred to as the expansion history of the work area).
(D) A history of changes in the robot's own position during the compaction operation (hereinafter referred to as the "change history of the robot's own position").
(E) The recommended work flow of workers from the time of display during the period in which compaction work is being carried out (hereinafter referred to as the "recommended work flow")

Here, the recommended movement route refers to additional information generated by the additional information generating means 1106 based on various information collected during the period when the compaction work is being carried out, specifically, the change history of the self-positions corresponding to each of workers U1 and U2, the expansion history of the construction area expanded by each of workers U1 and U2, and the work area data.
In order to generate the recommended movement line, the additional information generating means 1106 may use information other than those listed above, such as information input by the worker (such as the start and end positions of the compaction work) and information accumulated in past compaction work. In addition, the generation of the recommended movement line may be achieved by a technology realized by machine learning using information accumulated in past compaction work as training data.
By generating a recommended flow line and displaying it in augmented reality, the work efficiency of compaction work can be improved. In particular, when there are multiple workers, a significant improvement in work efficiency can be expected by generating a recommended flow line so that the progress directions (flow lines) of each worker do not overlap.

However, in implementing the present invention, it is not necessary for all of the additional information described above to be generated by the additional information generating means 1106; some of the additional information may be omitted within the scope of achieving the object of the present invention, and other additional information not described above may be generated by the additional information generating means 1106.

<Expansion of construction area and change of self-position>
Next, the expansion of the construction area and the change in the self-position will be described with a simple example.
FIG. 4 is a schematic diagram showing the expansion of the construction area and the change in the self-position.
It should be noted that the reference marker BM shown in Fig. 4 indicates the position of the marker detected by the marker detection means 1101. As described above, the marker is preferably realized by a two-dimensional code, but for the sake of convenience, it is displayed in Fig. 4 instead of a star mark.
As described above, the positions of the workers U1 and U2 shown in FIG. 4 are actually the positions of the tablet terminals 11 and 12, respectively.

FIG. 4(a) is an overall view of the entire work area at the beginning of the compaction work as seen from above.
This compaction work is performed by two workers, worker U1 and worker U2, as shown in Figure 4(a). The construction area CA1 indicates the range that has been worked on by the vibrator M1 used by worker U1. The construction area CA2 indicates the range that has been worked on by the vibrator M2 used by worker U2. Here, the construction area CA1 and the construction area CA2 correspond to the expansion history of the construction areas described above.

FIG. 4(b) is an overall view of the entire work area in the middle of the compaction work, as seen from above.
As is clear from a comparison of Figures 4(a) and 4(b), as the compaction work progresses, the construction areas CA1 and CA2 expand.
In addition, flow lines FL1 and FL2 indicating the movement histories of the workers U1 and U2 are added. Here, the flow lines FL1 and FL2 correspond to the change history of the worker's own position described above.
Furthermore, as the compaction work progresses, various information accumulates and the tablet terminal 11 is able to analyze the above-mentioned recommended movement lines, and a recommended movement line PFL1 for worker U1 and a recommended movement line PFL2 for worker U2 are added.

FIG. 4(c) is an overall view of the entire work area as viewed from above at the end of the compaction work.
In this embodiment, it is assumed that worker U1 proceeds with the work along recommended flow line PFL1, and worker U2 proceeds with the work along recommended flow line PFL2. Therefore, the flow lines FL1 and FL2 shown in Fig. 4C depict the same trajectories as the recommended flow lines PFL1 and PFL2 shown in Fig. 4B.

As described above, each overall view shown in Figure 4 allows the user to confirm his/her own position within the entire work range of the compaction work, and also allows the user to visually see at a glance how the construction area expands as the compaction work progresses (expansion history of the construction area).
Furthermore, each overall view shown in FIG. 4 also makes it easy to visually recognize the flow line of each worker (history of changes in the worker's own position) and the recommended flow line of each worker.
Therefore, it is preferable that each overall view shown in FIG. 4 is displayed in augmented reality on the tablet terminal 10, thereby improving the work efficiency and work quality of the compaction work.

<Display mode of augmented reality display>
Next, the display mode of the augmented reality display will be described.
Fig. 5 is a diagram showing a display state of the tablet terminal 11. Note that the reference marker BM shown in Fig. 5 is a two-dimensional code displayed instead of a star mark, similar to Fig. 4 .

The tablet terminal 11 displays a moving image of the real space captured by the built-in camera 111, and as described above, the moving image captures the work surface of the compaction work by the vibrator M1.
As shown in FIG. 5, each piece of additional information is displayed superimposed on the work surface displayed on the tablet terminal 11.
An overall view OV of the entire area of the compaction work area as seen from above is displayed in augmented reality in the upper left corner of the display area (touch panel 112) of the tablet terminal 11.
Both the internal and external areas of the overall view OV display grid-like divisions, the expansion history of the construction area, and the history of changes in the user's own position, and in the external area only, the respective additional information is displayed superimposed on the work surface of the compaction work.
On the other hand, the recommended flow line is displayed only in the internal area of the overall view OV, and is not displayed in the external area. Unlike other additional information, the recommended flow line is a prediction based on various information accumulated during the compaction work, and unlike other additional information that shows the facts that were actually performed before its display, it may change during the process, and if it is displayed directly on the above-mentioned work surface, it may actually hinder the work.

As described above, various pieces of information collected during the compaction work are reflected as needed in the additional information displayed on the tablet terminal 11. Therefore, during the period in which the compaction work is being performed, the construction areas CA1 and CA2 displayed on the tablet terminal 11 also expand as needed as the construction area expands in the real space.
This allows the worker U1 of the vibrator M1, to which the tablet terminal 11 is attached, to clearly distinguish between areas that have already been worked on and areas that have not been worked on during compaction work.

Although FIG. 5 shows the display mode of the tablet terminal 11 used by the worker U1, similar additional information is also displayed on the tablet terminal 12 used by the worker U2.
However, since the shooting range of tablet terminal 12 is different from that of tablet terminal 11, the arrangement and content of the additional information displayed on tablet terminal 12 will be adapted to the shooting range. In other words, tablet terminal 11 and tablet terminal 12 can display different additional information according to their respective shooting ranges. However, the additional information corresponding to the above-mentioned overall view OV is the same for both tablet terminal 11 and tablet terminal 12.
This allows the workers U1 and U2 to visually confirm additional information suited to their own work situations while grasping the overall progress of the compaction work, thereby improving the work efficiency and work quality of each worker.

Furthermore, the tablet terminal 13 used by the supervisor can switch between a display mode that displays either the shooting range by the tablet terminal 11 or the shooting range by the tablet terminal 12, or a display mode that displays both. At this time, the tablet terminal 13 can display different additional information according to each display mode. However, with regard to the additional information corresponding to the above-mentioned overall view OV, the tablet terminal 13 displays the same information as the tablet terminal 11 and the tablet terminal 12.
This allows the supervisor to check the work of the workers U1 and U2 individually and compare them with each other, and to give appropriate instructions to the workers U1 and U2, thereby improving work efficiency and quality.

<Modification using AR glass 41>
So far, we have described an embodiment in which additional information related to compaction work is displayed in augmented reality on the display area (touch panel 112) of the tablet terminal 10.However, as a variation, an embodiment in which the additional information is displayed in augmented reality on the AR glasses 41 will be described below.

FIG. 6, like FIG. 2, shows an operator U1 of a vibrator M1.
The worker U1 shown in FIG. 6 differs from the worker U1 shown in FIG. 2 in that the worker U1 wears AR glasses 41 instead of using the vibrator M1 to which the tablet terminal 11 is attached.

The AR glasses 41 are glasses-type devices for augmented reality display realized by a see-through head-mounted display.
The AR glasses 41 are equipped with a built-in camera that captures the field of view of the worker U1 wearing them, and the additional information generated by the tablet terminal 11 (additional information generating means 1106) is displayed in augmented reality on the right and left lenses, which are transparent displays, in accordance with the field of view captured by the built-in camera. At this time, the field of view of the worker U1 includes the action surface of the compaction work, so the AR glasses 41 can display the above-mentioned additional information (the enlargement history of the construction area and the visual history of changes in the worker's position) superimposed on the work surface that the worker views through the AR glasses 41.
Although FIG. 6 illustrates only the AR glasses 41 worn by the worker U1, the worker U2 can also wear AR glasses 42 having the same function as the AR glasses 41.
Here, the AR glasses 41 and AR glasses 42 display different additional information according to the field of view of the workers U1 and U2 who wear them.
This allows the workers U1 and U2 to visually recognize additional information suited to their own work situations, thereby improving the work efficiency and work quality of each worker.

In this modified example, the present invention has been described as being implemented by having worker U1 wear AR glasses 41 and worker U2 wear AR glasses 42 while performing compaction work, but the present invention may also be implemented by having one of them perform compaction work using a vibrator equipped with a tablet terminal 10 and the other perform compaction work while wearing AR glasses.
A worker wearing AR glasses has a narrower field of vision, and therefore, in view of the objective of the present invention, an embodiment in which the tablet terminal 10 is attached may be considered preferable.

<Other Modifications>
The present invention is not limited to the above-described embodiment, and various modifications and improvements are possible. Modifications not described in the above description are listed below.

The configuration of the construction management system 100 shown in Figure 1 is merely an example of what is necessary to explain the present invention, and configurations not shown in Figure 1 may be added, or some of the configurations shown in Figure 1 may be omitted.
In addition, in the above-described embodiment, at least some of the functions described as those of the tablet terminal 11 may be realized by a computer device not shown (e.g., a cloud server), or may be realized by collaboration between the tablet terminal 10 and a computer device not shown.

In the above embodiment, a tablet terminal 10 is illustrated as a specific example of a "mobile terminal" according to the present invention, but other devices may also be configured to correspond to a "mobile terminal." For example, a smartphone, a mobile phone, a mobile computer, etc. may also be configured to correspond to a "mobile terminal."

In the above embodiment, a construction management system 100 has been described that manages compaction work by a plurality of workers (worker U1 and worker U2) by attaching a plurality of tablet terminals 10 (tablet terminal 11 and tablet terminal 12) to different vibrators (vibrator M1 and vibrator M2). However, in the implementation of the present invention, the number of workers to be managed or the number of construction machines used by the workers may be three or more, or may be only one.
In addition, the above embodiment has been described with respect to the construction management system 100 including the tablet terminal 13 (not attached to the vibrator) used by the supervisor. However, in the implementation of the present invention, the construction management system 100 does not necessarily have to include the tablet terminal used by the supervisor.

In the above embodiment, the present invention is applied to the compaction work of concrete, but the present invention may be applied to the compaction work of the ground. In this case, the construction equipment to which the tablet terminal 10 is attached may be a compaction machine such as a rammer or a roller instead of a vibrator.
In this modified example, the additional information displayed in augmented reality on the tablet terminal 10 can be the same as the additional information described in the above embodiment.

In the above embodiment, the construction area management means 1103 divides the compaction work area into a grid, and so the tablet terminal 10 also displays the grid. However, the present invention may be implemented in a manner in which the tablet terminal 10 does not display a grid.

The display format shown in FIG. 5 is merely one specific example, and the layout and display content can be modified as appropriate within the scope of achieving the objectives of the present invention.

<Additional Notes>
The present embodiment encompasses the following technical idea.
(1) A construction management system for managing compaction work, comprising: a position management means for managing a self-position, which is the position of one or more construction equipment used in the compaction work or one or more workers operating the construction equipment; a construction area management means for managing a construction area which is the area in which the compaction work is carried out; an additional information generation means for generating additional information based on the self-position and the construction area; and an augmented reality display means for adding and displaying the additional information to a real environment related to the compaction work, wherein the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being carried out, and the construction area indicated by the additional information is expanded as the construction area expands during the compaction work.
(2) A construction management system as described in (1), comprising a marker detection means for detecting markers installed in real space, and a data acquisition means for acquiring work area data indicating the entire work area in which the compaction work is carried out, wherein the construction area management means recognizes the work area indicated by the work area data by dividing it into a grid based on the position where the marker is detected, and manages the construction area with one grid as the smallest unit.
(3) The construction management system according to (2), wherein the construction area management means is capable of changing the size of the one grid depending on the area to be constructed in one compaction operation by the construction equipment.
(4) The construction equipment is a vibrator that performs the compaction work by inserting it into poured concrete and vibrating it, and is equipped with an insertion position detection means for detecting the insertion position where the vibrator is inserted, and the construction area management means designates a grid as the construction area when the insertion position is within a specified area that is part of the one grid for a specified period of time. (2) or (3) is a construction management system described in (3).
(5) The construction management system according to (4), wherein the construction area management means causes an alarm means to alarm an abnormality in work when the insertion position is not within the specified area.
(6) A construction management system described in any one of (1) to (5), wherein the augmented reality display means displays the additional information indicating a history of changes in the self-position during the period in which the compaction work is being carried out.
(7) A construction management system as described in (6), further comprising a data acquisition means for acquiring work area data indicating the entire work area within which the compaction work is performed, wherein the additional information generation means generates the additional information indicating a recommended movement line for subsequent compaction work based on the self-position change history corresponding to each of the construction equipment or the worker, the expansion history of the construction area, and the work area data, and the augmented reality display means displays the additional information indicating the recommended movement line during the period in which the compaction work is being performed.
(8) A construction management system as described in any one of (1) to (7), wherein the augmented reality display means is realized by a mobile terminal attached to the construction equipment, and the mobile terminal further has an imaging means for photographing a work surface on which the attached construction equipment performs compaction work, and the augmented reality display means displays the work surface photographed by the imaging means and overlays the additional information indicating the construction area on the displayed work surface, and when there are multiple mobile terminals, displays different additional information according to the imaging range of the imaging means.
(9) A construction management system described in any one of (1) to (7), wherein the augmented reality display means is realized by a transparent head-mounted display, and the additional information indicating the construction area is superimposed on the work surface viewed by the worker through the augmented reality display means, and when there are multiple head-mounted displays, different additional information is displayed according to the field of view of the worker wearing the head-mounted display.

Reference Signs List 10, 11, 12, 13 Tablet terminal 20 Network 41, 42 AR glasses 100 Construction management system 111 Built-in camera 112 Touch panel 113 Control means 1101 Marker detection means 1102 Position management means 1103 Construction area management means 1104 Data acquisition means 1105 Insertion position detection means 1106 Additional information generation means

Claims (4)

A construction management system for managing compaction work,
a position management means for managing a self-position, which is a position where one or more construction machines used in the compaction work or one or more workers operating the construction machines are present;
A construction area management means for managing the construction area in which the compaction work is performed;
additional information generating means for generating additional information based on the self-location and the construction area;
an augmented reality display means for displaying the additional information in addition to a real environment related to the compaction work;
A marker detection means for detecting a marker installed in a real space;
A data acquisition means for acquiring work area data indicating the entire area of the work range in which the compaction work is performed;
Equipped with
the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and whenever the construction area expands during the compaction work, the construction area indicated by the additional information expands as needed ;
The construction area management means includes:
The work area indicated by the work area data is divided into a grid shape based on the position where the marker is detected, and the work area is recognized;
Manage the construction area with one grid as the smallest unit,
The size of the one grid can be changed depending on the range to be worked on in one compaction operation by the construction equipment.
A construction management system characterized by the above. A construction management system for managing compaction work,
a position management means for managing a self-position, which is a position of one or more vibrators that are inserted into the poured concrete and vibrate to perform the compaction work, or one or more workers operating the vibrators ;
A construction area management means for managing the construction area in which the compaction work is performed;
additional information generating means for generating additional information based on the self-location and the construction area;
an augmented reality display means for displaying the additional information in addition to a real environment related to the compaction work;
A marker detection means for detecting a marker installed in a real space;
A data acquisition means for acquiring work area data indicating the entire area of the work range in which the compaction work is performed;
an insertion position detection means for detecting an insertion position where the vibrator is inserted;
Equipped with
the augmented reality display means displays the additional information indicating the construction area during the period in which the compaction work is being performed, and whenever the construction area expands during the compaction work, the construction area indicated by the additional information expands as needed ;
The construction area management means includes:
The work area indicated by the work area data is divided into a grid shape based on the position where the marker is detected, and the work area is recognized;
Manage the construction area with one grid as the smallest unit,
When the time during which the insertion position is within a predetermined area that is a part of the one grid is a predetermined time, the one grid is set as the construction area,
When the insertion position is not within the predetermined area, a notification means notifies an abnormality in the work.
A construction management system characterized by the above. A construction management system for managing compaction work,
a position management means for managing a self-position, which is a position where one or more construction machines used in the compaction work or one or more workers operating the construction machines are present;
A construction area management means for managing the construction area in which the compaction work is performed;
additional information generating means for generating additional information based on the self-location and the construction area;
an augmented reality display means for displaying the additional information in addition to a real environment related to the compaction work;
A data acquisition means for acquiring work area data indicating the entire area of the work range in which the compaction work is performed;
Equipped with
The additional information generating means generates the additional information indicating a recommended movement line recommended for the subsequent compaction work based on the change history of the self-position corresponding to each of the construction equipment or the worker, the expansion history of the construction area, and the work area data,
The augmented reality display means includes:
During the period in which the compaction work is being performed, the additional information indicating the construction area is displayed, and each time the construction area expands during the compaction work, the construction area indicated by the additional information is expanded as needed ;
displaying the additional information indicating a history of changes in the vehicle's own position during the period in which the compaction work is being performed;
displaying the additional information indicating the recommended movement line during the period in which the compaction work is being performed;
A construction management system characterized by the above. A construction management system for managing compaction work,
a position management means for managing a self-position, which is a position where one or more construction machines used in the compaction work or one or more workers operating the construction machines are present;
A construction area management means for managing the construction area in which the compaction work is performed;
additional information generating means for generating additional information based on the self-location and the construction area;
an augmented reality display means for displaying the additional information in addition to a real environment related to the compaction work;
Equipped with
the augmented reality display means is realized by a mobile terminal attached to the construction equipment,
The mobile terminal further includes an imaging means for imaging a work surface on which the attached construction equipment performs compaction work,
The augmented reality display means includes:
During the period in which the compaction work is being performed, the additional information indicating the construction area is displayed, and each time the construction area expands during the compaction work, the construction area indicated by the additional information is expanded as needed ;
The work surface photographed by the photographing means is displayed, and the additional information indicating the construction area is superimposed on the displayed work surface,
When there are a plurality of the mobile terminals, different additional information is displayed for each of the mobile terminals in accordance with the photographing range of the photographing means.
A construction management system characterized by the above.

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