JP7563874B2 - Learning support device that recreates a construction site - Google Patents

Description

This invention relates to a support device that allows people involved in construction management, safety management, etc. at actual construction sites to learn the knowledge necessary for construction using virtual 3D images without visiting the site.

Traditionally, when learning about various types of construction management and safety management at construction sites, skilled workers were trained by visiting the actual site and receiving instruction one by one from an experienced person with ample knowledge. However, since it was necessary to visit a site where actual construction was in progress accompanied by an experienced person, scheduling and other matters were difficult. In addition, since the number of sites in progress of construction was limited, there were restrictions on learning and it was difficult to pass on a lot of on-site experience.

JP 2018-081549 A JP 2018-116571 A

The above-mentioned Patent Document 1 displays dangerous spots at a work site in images along with information indicating dangerous events, and performs machine learning using the learning data. However, the invention shown in Patent Document 1 does not take into consideration future expandability, and learners will become bored if they study repeatedly. In addition, the invention shown in Patent Document 2 identifies managed objects in a management server provided in a management system, photographs them with a camera attached to a mobile object, identifies their location based on the shooting location information, and records this information. However, the invention shown in Patent Document 2 is intended to identify people and other objects to be managed and identify their location, and is not intended for learners to simulate and become familiar with various phenomena at construction sites, etc.

The purpose of this invention is to provide a device that allows a learner to independently practice construction management and safety management at a construction site using a computer program, rather than the conventional on-site learning method of visiting a site with an experienced person and learning by observing the actions of the experienced person.

In order to solve the above problems, the present invention creates a virtual construction site space based on 3D CAD data that represents dangerous locations and events that may occur on an actual construction site, and enables students to experience many construction sites in a short period of time by carrying out simulated experiences using computers and virtual reality equipment.

As a specific means, a learning support device that reproduces a construction site is used, which is characterized in that it is a device consisting of a computer device, a virtual site experience software that stores 3D data for realizing a virtual site experience, a personal information reflection processing unit, and a storage device, in which coordinates having dangerous points and dangerous events in a structure, and defective events in construction management and safety management related to dangerous actions are embedded in the 3D data, and the computer device has a plurality of questions related to the coordinates embedded in the 3D data read from the virtual site experience software and displayed on the screen, and when the coordinates are specified, a plurality of questions selected from the plurality of questions are displayed on the screen in sequence, the computer device judges whether the answers entered by the operator are correct or incorrect and performs a grading process, and stores the results of this grading process in the storage device, and at the same time, displays an explanation of the intention of the questions and points to note, and the personal information reflection processing unit analyzes the results stored in the storage device, newly selects the plurality of questions, displays them on the screen, and scores them multiple times to accumulate. Here, the coordinates in this invention mean defective events in construction management and safety management that are embedded in the 3D data in advance. Furthermore, a malfunction phenomenon means that phenomena such as a hatch cover coming loose and opening, or unnatural puddles caused by water leaks, are displayed on the screen.

The on-site virtual experience processing software and storage device were stored in the cloud. Furthermore, the computer device and the cloud were connected via a data communications network, and multiple computer devices were installed in parallel.

According to the present invention, by experiencing dangerous locations and dangerous events that are not easily experienced by visiting actual construction sites in a short period (hour) at various types of construction sites, it is possible to realize the learning of safety management and construction management that normally requires several years in a short period of time, reducing the construction management and safety management problems that are likely to occur among young staff with little on-site experience, and operating a safe and efficient construction site. In addition, it reduces the cost of learning and at the same time allows learners to become proficient through machine learning, which contributes to shortening the construction period overall.

FIG. 1 is a process flow diagram of an educational application system using the present invention. 4 is a flowchart showing a processing flow according to an embodiment of the present invention. FIG. 1 is a block diagram showing an implementation of the present invention using a data communication network.

The following describes an embodiment of the present invention with reference to the attached drawings. Figure 1 is a conceptual diagram showing the steps in which an operator progresses through the stages of learning by linking educational application software with application software that allows a simulated experience of a construction site, with a 3D model of the construction site displayed on the screen. In the procedure shown here, after logging in, all processes proceed within an independent computer until a series of stages are completed. The computer contains educational application software that is displayed on a web browser, and application software for assembling a structure in advance according to a building construction procedure. The 3D data of the structure is stored in the memory of the application software beforehand.

First, the educational application software is started (Start 1), and the operator (student) enters the preregistered password and other information according to the instructions on the screen. Then, if this is the initial operation, the initial screen is displayed without showing the results. On the other hand, if the learner has previously studied partway and saved that state, the saved data is displayed on the screen as the learning results. In this embodiment, the progress of the study is analyzed based on the saved data according to the content of the study, and the content displayed in each application software the next time is automatically changed according to the learning stage. The educational application software is in a question and answer format, and the effectiveness of the education is enhanced by answering questions while repeatedly visiting and experiencing dangerous locations, dangerous events, and dangerous actions that are preprogrammed in the linked field simulation experience application software.

The above process will be explained with reference to Figure 1. When the process is started by start 1, if a password is entered, the personal information reflection processing unit 2 searches for information specified by the password, and if a previous save exists, the saved state is reproduced on the screen, and if no save data exists with the specified password, the initial screen is displayed by the mission screen display processing unit 3. Then, when the operator starts the operation by operating the requested button 4, the site virtual experience software 5 starts up along with the 3D data of the structure that is pre-installed in the device. This site virtual experience software 5 is an independent application software installed in the computer device, and can be called up at will by the operator, but since the 3D data is installed in the site virtual experience software 5, it will be resident during learning. Note that the 3D data may be a single piece, but if memory allows, data for multiple structures may be provided and the operator may select any structure.

Next, when the learning is started or resumed by another button operation 6, if any preset arbitrary coordinates on the screen on which the structure is displayed are specified, an image of the defect phenomenon in the 3D data related to the question is displayed in the site virtual experience software 5 when answering or explaining (step 7). For example, questions are asked according to the actual site check items, such as items that the site supervisor should check in a structure under construction, or whether dangerous places have been properly dealt with. The question format is basically N-multiple choice questions, and if the correct answer is selected, it is added to the score result, and if the answer is incorrect, it is not added. In addition, 9 is an explanation display step, in which the intention of the question and points to note are displayed. This explanation display step 9 can be omitted or skipped by the operator. Once the score result is displayed, the operator can end it in that state by button operation 10, and if it is determined that the result was not satisfactory, it is also possible to return to the same question again. In addition, the graded data is stored in the storage device 11 together with necessary information (for example, individual passwords) in the memory in the device or on the web. In this case, when the process of returning to the same question is performed again, it is up to the device's design discretion whether the new score can be saved together with the previous score, or the previous score can be overwritten with the new score. Note that in step 7, it is also possible to adopt a method in which the question pops up on the screen when any coordinate is specified.

In the above explanation, operations are performed by button operations, but of course operation by mouse instead of button operations is also acceptable. The relationship between the virtual site experience software 5 and the questions is that the virtual site experience software 5 provides a screen that shows, for example, the construction of a structure in chronological order from the foundation to completion using 3D data, and the questions are stored in the device as data associated with the personal information processing unit 2. In other words, when coordinates embedded in advance in the virtual site experience software 5 are specified on the screen with the pointer, the question items associated with those coordinates pop up on the screen. The question items can also be stored in a separate database, and can be read from the database into the device based on instructions from the personal information processing unit 2.

The personal information reflection processing unit 2 in the present invention not only stores and processes the operation results specified by the password, but also reflects the processed results in the operation steps that are processed sequentially. In other words, in the site virtual experience software 5, 3D data of multiple structures may exist, and even the same structure may have construction procedures with different levels of difficulty, and a 3D screen with increased difficulty may be displayed according to the operator's learning level. In this case, the difficulty level to be selected may be a level corresponding to the marking level, but it is also possible to select an arbitrary difficulty level from multiple difficulty levels. Furthermore, it is also possible to change the difficulty level of the question content by increasing or decreasing the number of N options. These processes are realized by a step called "reflection of processing results" 12 in the figure, and the content determined by the personal information reflection processing unit 2 is reflected in the question setting step 7, the marking processing step 8, and, if necessary, the explanation display step 9. Of course, the content determined in this way is also given as a command to the site virtual experience software 5, which calls up a 3D screen of the structure according to the difficulty level, and prepares for the start of a new study.

Figure 2 is a flow chart showing an example of the processing procedure from step 7 of setting questions to step 8 of marking processing. When the processing starts, it is judged whether any questions remain at the saved stage among the questions consisting of a series of groups (step 20), and 10 questions from the top of the list are selected from the data group in advance (step 21), the selected questions are randomly shuffled (step 22), and the questions are displayed on the screen in order to prompt the answerer (step 23). When the operator answers using a button or mouse, the questions proceed in order, and it is judged whether the answers to the 10 questions have been completed (step 24). When it is judged that all questions have been answered, the marking results are displayed automatically or by operation (step 25). The marking results are then stored in the personal information reflection processing unit 2 in Figure 1, and the processing results are reflected in the content of the questions in step 7, as described above. In this way, the learner (operator) repeats the learning and becomes familiar with how to avoid dangers in the field on the screen.

Note that the above explanation is for the state in which the operator saves during learning, but if it is determined in step 20 that all learning is complete and there are no unanswered questions when determining whether any questions remain, then all questions in the device are read from the database, rather than a data group consisting of a specific group, and the order of the questions is shuffled so that it is not constant (step 26). This step 26 is activated when more than 10 questions are set, and this step does not work if the total number of questions is 10. Note that 10 questions is used in the embodiment, but this is just an example, and should be considered as any N questions, and step 26 is activated when the total number of questions is 11 or more.

The process in FIG. 1 is described for an independent device, but there are cases where multiple operators use different devices to study at the same time. FIG. 3 is an overall view of a corresponding system, with 30A to 30E being five terminal devices, and in this embodiment, five operators can study at the same time. The number of terminal devices is arbitrary. 31A to 31E are web browsers provided on each terminal device, and the virtual site experience software 5 shown in FIG. 1 is called up through this web browser 31, and a virtual site is reproduced on the screen. 32 is a cloud, in which the virtual site experience software 5 is stored as application software 33, and further, the contents saved by the operator and the contents newly operated are associated with a password and stored as data 34. Note that in this embodiment, these application software 33 and data 34 are executed and operated using the cloud, but the place where they are stored is not limited to the cloud, and if a commonly used host computer and each terminal device 30A to 30E are connected by a data communication network, they can also be stored in the storage area of the host computer.

The content described in this embodiment is one example, and the number of questions, type of questions, etc. can of course be freely changed as appropriate. The required configuration here is for the operator to call up the 3D data stored in the virtual on-site experience software onto the screen, check dangerous locations while looking at this screen, and display the appropriate question content on the screen according to commands embedded in the coordinates of the location, and the overall structure is one in which the learned content is processed in a personal information reflection processing unit, and the question items, question difficulty, and even the difficulty of the 3D data are changed based on the processing results. As long as this can be achieved, it does not matter whether it is an independent device or a system connected to an information and communications network.

2 Personal information reflection processing unit 3 Mission screen display processing 5 Virtual field experience software 8 Scoring processing step 9 Explanation display step 11 Storage device 30 Terminal device 31 Web browser 32 Cloud 33 Application software 34 Data

Claims (3)

A learning support device that reproduces a construction site, comprising a computer device, a virtual site experience software that stores 3D data for realizing a virtual site experience, a personal information reflection processing unit, and a storage device , wherein the 3D data is embedded with coordinates of dangerous locations and dangerous events in a structure, and defects in construction management and safety management related to dangerous actions, and the computer device has a plurality of questions related to the coordinates embedded in the 3D data that is read from the virtual site experience software and displayed on a screen, and when the coordinates are specified, a plurality of questions selected from the plurality of questions are displayed on the screen in sequence, the computer device judges whether the answers entered by an operator are correct or incorrect and performs a grading process, and stores the results of this grading process in the storage device, while simultaneously displaying an explanation of the intention of the questions and points to note, and the personal information reflection processing unit analyzes the results stored in the storage device, newly selects the plurality of questions, displays them on the screen, and grades them multiple times, accumulating the process. A learning support device that recreates the construction site described in claim 1, in which the on-site virtual experience processing software and storage device are stored in the cloud. The computer device and the cloud are connected via a data communication network, and multiple computer devices are installed in parallel to create a learning support device that recreates a construction site as described in claim 2.

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