JP7397431B1 - Worker safety education system - Google Patents

Abstract

An object of the present invention is to provide a safety education system for workers that allows workers to experience and understand unsafe behavior corresponding to actual work sites. [Solution] This system is used for safety education of workers at a work site, and includes an image display unit 2 that displays a confirmation image including a work site image that is an image of the work site; The control unit 10 includes a control unit 10 that controls the confirmation image, and an input unit 3 through which an inputter who has confirmed the confirmation image inputs caution information. a memory function 16 that associates information regarding the input person who inputs the information with the confirmation image displayed on the image display unit 2 when the caution information is input and stores the association in the storage unit 20 as training result information; A confirmation image display function 13 for displaying caution information together with a confirmation image on the image display section 2 based on the training result information stored in the section 20 is provided. [Selection diagram] Figure 1

Description

The present invention relates to a worker safety education system.

At construction sites, there are tasks and environments where workers may be injured. For example, when performing unfamiliar work, workers may damage tools or materials or become a hindrance to themselves or other workers by not moving properly or handling tools and materials appropriately. There is a possibility of injury. Furthermore, since various equipment, tools, materials, etc. are placed on the floor at work sites, there is a possibility that workers may fall or get injured if they come into contact with these equipment. Furthermore, at sites where floors and walls are unfinished, there is a possibility that there are holes and protrusions that are not present in the completed floors and walls, and workers may fall into the holes or come into contact with protrusions and be injured. There is also a possibility that The causes of these injuries are often due to the worker's proficiency in the work and the worker's attentiveness, so it is important to educate workers about the causes of injuries and other disasters and what they should be careful about. By making the information known and understood, it is possible that accidents such as injuries can be reduced. For this reason, in construction work, prior safety training (dispatch training) is provided at the company before the actual construction work begins, and on-site training is provided after construction work begins. It is being said.

By the way, as an educational facility for experiencing accidents and dangers that occur at construction sites, etc., a technology has been developed in which an educational facility is constructed and the educational facility is used to experience accidents and dangers, as disclosed in Patent Document 1.
However, with the technology of Patent Document 1, it is necessary to construct an educational facility, so although it is possible to experience general accidents and dangers at a model site, it is difficult to experience accidents and dangers that occur at actual sites. It is not possible.

On the other hand, Patent Document 2 discloses a technology for providing training at a work site and detecting danger based on 3D data. In the technology of Patent Document 2, when a predetermined location is selected in 3D data, danger information and defect images are displayed, and at that time, problems related to items to be confirmed on site are being filed.
However, although the technology disclosed in Patent Document 2 can be applied to sites with a variety of structures compared to the technology disclosed in Patent Document 1, the technology disclosed in Patent Document 2 cannot provide danger information or malfunctions at actual sites. do not have.

In the technology of Patent Document 3, a technology has also been developed that automatically detects unsafe locations from the same structure as the actual construction site based on a three-dimensional model formed by BIM.
However, the technology disclosed in Patent Document 3 only detects unsafe locations caused by structures, and cannot inform or educate workers about unsafe behavior caused by actual work. For example, it is not possible to publicize or educate about dangers caused by dangerous acts during actual work or obstacles caused by temporary storage of materials, equipment, etc.

On the other hand, in the technology of Patent Document 4, precautions related to on-site work, etc. are included in the attribute information of the parts of the 3D model registered in BIM, or are stored separately in the precautions registration section. A technology has been disclosed in which a work situation is determined based on information acquired by an automatic patrol vehicle, and precautions corresponding to the work situation are displayed on a three-dimensional model. It is also disclosed that the worker is alerted to the precautions displayed on the three-dimensional model by having the worker check the precautions displayed on the three-dimensional model before working. It is also disclosed that the caution registration unit has a function of storing newly discovered cautions and the like.
Therefore, if the technology of Patent Document 4 is used, it is possible to make workers aware of unsafe actions and dangers that occur during on-site work with respect to parts and the like to which work is to be performed.

JP2019-219442A Japanese Patent Application Publication No. 2020-190644 JP2020-95390A JP 2021-156015 Publication

The technology disclosed in Patent Document 4 is desirable in that it allows users to check precautions that correspond to the actual work site, but it only displays the precautions on an image, and it is difficult for workers to understand situations where unsafe behavior actually occurs. cannot be fully understood.
Furthermore, even if the worker confirms the precautions, it cannot be determined whether or not he or she understands the precautions, and this is not sufficient to educate the worker.

In view of the above circumstances, it is an object of the present invention to provide a worker safety education system that allows workers to understand unsafe behavior corresponding to actual work sites.

The worker safety education system of the first invention is a system used for safety education of workers at a work site, which the worker wears when performing a work experience, and the worker wears the system during the work experience. an image display device having a display section for displaying an image visually recognized by the worker; a training image control function for controlling the image displayed on the display section of the image display device; and an image display device for experiencing the image visually recognized by the worker during the work experience. a control unit having a function of storing the experience image in the storage unit as an image, and an experience image display function of displaying the experience image stored in the storage unit on the image display unit; an input unit for inputting caution information by a worker who has confirmed the experience image and/or a work manager who manages the work at the work site as an input person, and the control unit: Associating the caution information input from the input unit, information regarding the input person who inputted the caution information, and the experience image displayed on the image display unit when the caution information was input. and a confirmation image display function that causes the image display unit to display the caution information together with the experience image based on the training result information stored in the storage unit. It is characterized by having the following.
In the worker safety education system according to a second aspect of the invention, in the first aspect, the input unit includes information on an estimated danger location where unsafe behavior may occur in the experience image , in which the input person uses the caution information as well as the information on the warning information. The storage function of the control unit stores the information on the estimated danger location in association with the training result information, or stores the information on the estimated danger location in the training result information. The confirmation image display function of the control unit is configured to display the caution information together with the experience image on the image display unit based on the training result information. The present invention is characterized by having a function of displaying the caution information at the estimated danger location or in the vicinity of the estimated danger location.
In the worker safety education system according to a third aspect of the invention, in the first aspect, the input section inputs the caution information displayed on the image display section by a voice input function and a confirmation image display function of the control section. and a selection function for selecting, and when the caution information is selected by the selection function of the input unit, the control unit selects the sound input by the audio input function of the input unit, and the control unit selects the selected sound. The present invention is characterized by having a voice storage function for storing the warning information in association with the information regarding the selector who selected the warning information.
In the worker safety education system of a fourth invention, in the first invention, the confirmation image display function of the control unit includes worker caution information that is caution information input by the worker and worker caution information input by the work manager. When work manager caution information, which is caution information, is stored in association with the same experience image , both the worker caution information and the work manager caution information are stored at the same time as the experience image with which they are associated. It is characterized in that it has a function of displaying on the image display section.
A worker safety education system according to a fifth invention according to the first invention includes experience equipment that imitates a work site where a worker wearing the image display device experiences work, wherein the image display device , has a photographing function for photographing an area visible to the worker, and the control unit includes a detector for detecting the movement of the worker wearing the image display device, a signal from the detector, and a photographing function for photographing an area visible to the worker. An MR image is displayed on the display section of the image display device based on a photographed image of the experience equipment taken by the photographing function and a BIM model that is an image of the work site that is the source of the experience equipment formed by the BIM system. and a training image control function for displaying the training image, and the confirmation image display function has a function for displaying the MR image as the experience image together with the caution information on the image display section. do.
A worker safety education system according to a sixth aspect of the present invention is such that, in the fifth aspect, work-related objects, which are objects related to the work performed by the worker at the work site where the experience facility is based, are arranged in the experience facility. The object fixed to the experience equipment among the work-related objects is provided with a positioning mark used for positioning the BIM model and the photographed image. do.
A worker safety education system according to a seventh aspect of the invention is the first aspect, comprising an image display device that is worn by the worker and has a display section that displays an image that is visually recognized by the worker, and the control section includes: It has a training image control function that displays a VR image on the display section of the image display device based on a BIM model of a work site where workers experience work, which is formed by a BIM system, and the confirmation image display function is characterized by having a function of displaying the VR image as the experience image together with the caution information on the image display section.
In the worker safety education system according to an eighth aspect of the invention, in the first, second, third, or fourth aspect, the input unit includes an unsafe behavior table that displays a plurality of unsafe behaviors assumed in the experience image. and a selection input function for the input person to select an unsafe behavior from the unsafe behavior table, and the control unit is configured to input the information of the input person and the unsafe behavior input by the input person. It is characterized by having an evaluation function that evaluates the input person using information regarding safety behavior and the experience image .

According to the first invention , the worker can check the experience image of the work site he/she is about to perform and check the experience image of the work site he or she is about to perform and understand unsafe behavior, so that the worker can understand the unsafe behavior at the work site. The effect of suppressing the occurrence of such behavior, that is, the effect of safety education for workers can be enhanced. In addition, if a trained worker enters caution information as an inputter, an image of the experience will be displayed together with the caution information, so the work manager can see what kind of situation the worker has judged to be unsafe behavior. etc. can be understood.
According to the second aspect of the invention, it is possible for a work manager and the like to deepen their understanding of what kind of situation is determined to be unsafe behavior by a worker.
According to the third invention, the situation in which the worker has determined that the unsafe behavior is occurring can be input by voice, so that the work manager's understanding of the unsafe behavior of the worker can be deepened. In addition, if the comments of the work manager, etc. are input by voice, it will be easier for the worker to understand the thoughts of the work manager, etc. when checking the experience image along with the warning information, so that the worker can understand the unsafe behavior of the worker. You can deepen your understanding.
According to the fourth invention, when the worker confirms the experience image along with the caution information, the worker can easily identify the coincidences and differences between the unsafe behavior considered by the work manager etc. and the unsafe behavior considered by the worker himself/herself. This allows workers to better understand unsafe behavior.
According to the fifth to seventh aspects of the invention, a worker can experience a simulated work at an actual work site, and the image of the simulated experience is used as an experience image to input caution information. This makes it easier for people to understand.
According to the eighth invention, since an evaluation of each worker's recognition of unsafe behavior and degree of understanding is presented, it is possible to objectively understand the worker's recognition of unsafe behavior, and the workplace is tailored to each worker. It becomes easier to provide education.

1 is a schematic block diagram of a worker safety education system 1 according to the present embodiment. (A) and (B) are diagrams showing an example of a BIM model, and (C) and (D) are diagrams showing an example of the experience facility 30. (A) to (C) are diagrams showing an example of a situation of the experience work, and (D) to (F) are diagrams showing an example of a VR image. It is a flowchart of experience work by worker safety education system 1 of this embodiment. 3 is a flowchart for inputting caution information using the experience image display function 13. 3 is a flowchart for confirming an experience image using the confirmation image display function 14. FIG. (A) is a diagram showing an example of a tag used as caution information, (B) is a diagram showing an example of an image in which a worker tag is displayed superimposed on an experience image, and (C) is a diagram showing an example of an image in which a worker tag is displayed superimposed on an experience image. FIG. 3 is a diagram showing an example of an image in which a worker tag and a work manager tag are displayed superimposed on the image. 3 is a diagram showing an example of an evaluation graph created by the evaluation function 16. FIG.

The worker safety education system of this embodiment is a system used to provide safety education to workers who work at work sites, etc., and is a system that is used to provide safety education to workers who work at work sites. It is used.

There are no particular limitations on the timing or place of implementing safety education using the worker safety education system of this embodiment. For example, before starting work at a work site, training is provided to help students understand the work to be done at the work site (so-called send-off training), or after work has begun at the actual work site, on the day of the work. It can be used for education (so-called on-site education) to help people understand the work to be carried out. In addition to sending-off education and on-site education, it can also be used for safety education conducted at periodic in-house study sessions and seminars and training sessions held by construction industry associations.

The work in which safety education is carried out using the worker safety education system of this embodiment is not particularly limited, and the system can be employed for safety education of various types of work performed at work sites and the like. For example, safety training for various tasks such as installing gypsum board on walls and ceilings at work sites (gypsum boarding work), working at high places such as ceiling construction, and transporting and receiving materials such as steel pipes and frames. The worker safety education system of this embodiment can be used.

In the following description, as a representative example, a case will be described in which safety education for plasterboarding work is carried out using the worker safety education system of this embodiment.

<Worker safety education system 1 of this embodiment>
As shown in FIG. 1, the worker safety education system 1 of this embodiment includes an image display section 2 that displays images for confirmation by workers and work managers, and an input section 3 that inputs caution information, etc., which will be described later. , an image display device 5 worn by a worker or the like who experiences safety training, and a control section 10 that controls the operations of the image display section 2 , the input section 3 , and the image display device 5 . Further, the worker safety education system 1 of this embodiment includes an experience facility 30 that is a facility for workers and the like to experience safety education.

<Control unit 10>
As shown in FIG. 1, the control section 10 is connected to the image display section 2, the input section 3, and the image display device 5 by wire or wirelessly so as to be able to transmit and receive signals. This control unit 10 operates a training image control function 11 that controls images displayed on the image display unit 2 (confirmation images, caution information, etc.) and images displayed on the display unit 5a of the image display device 5 during the experience work. have. For example, the control unit 10 has a training image control function 11 that controls which image is displayed on the image display unit 2 or the display unit 5a of the image display device 5 at which timing.

The training image control function 11 of the control unit 10 has a function of generating an MR (Mixed Reality) image or a VR (Virtual Reality) image as an image to be displayed on the display unit 5a. Specifically, the control unit 10 uses a 3D model (hereinafter referred to as a BIM model, as shown in FIG. 2 (A ) and (B)) has a function of generating VR images and MR images. For example, in the case of a VR image, the BIM model of the work site can be used as a VR image, and the BIM model can include information (shape information) about the three-dimensional shape and structure of the target structure such as holes and protrusions, A VR image can be created by modifying character/numeric information (attribute information) of a part. In addition, in the case of an MR image, an MR image can be an image obtained by superimposing a BIM model and an image (photographed image) taken by the photographing function of the image display device 5, which will be described later. An MR image can be obtained by overlapping both or one of the images with modifications such as shape information and attribute information.

Note that if the image (3D model) from which the training image control function 11 of the control unit 10 generates the VR image or MR image is an image created in the BIM system, the image (3D model) from which the training image control function 11 of the control unit 10 generates the VR image or MR image that is visually recognized by the worker The image can reproduce a situation almost equivalent to the actual work site where the work experience will be carried out. However, the image (3D model) from which the VR image or MR image is generated does not necessarily have to be an image created with a BIM system. When the training image control function 11 of the control unit 10 generates a VR image or an MR image, any image may be used as long as it can reproduce a situation close to the actual work site.

<Memory function 15>
The control unit 10 also converts the image displayed on the image display unit 2 and the image displayed on the display unit 5a of the image display device 5 into information input from the input unit 3 (such as caution information and information on estimated danger locations). It has a storage function 15 for storing in the storage unit 20 in association with each other.

For example, when performing an experience work as described below, the memory function 15 stores information such as the worker who performed the work experience, the date on which the work experience was performed (experience date), and the information displayed on the image display unit 2 at the time of the work experience. It has a function of storing images displayed on the display section 5a of the image display device 5 in the storage section 20 in association with each other.

In addition, the memory function 15 stores information on the input unit 1 while the experience image display function 13 of the display function 12 (to be described later) is displaying an image (experience image) when the worker performed the work experience on the image display unit 2. When information is input from the input unit 3, the experience image and the information input from the input unit 3 are associated with each other and stored in the storage unit 20.

The storage function 15 also has a function of providing stored information based on instructions from other functions or devices. For example, when a command to designate an experience image and read out stored information from the experience image display function 13 or confirmation image display function 14 of the display function 12 is supplied to the memory function 15, the specified experience image or the experience The storage function 15 has a function of supplying information stored in association with images to the experience image display function 13 and the confirmation image display function 14 of the display function 12. Specifically, when the experience image display function 13 and the confirmation image display function 14 of the display function 12 provide information such as the worker's name and ID and the date on which the experience work was performed, the images and images of the corresponding experience work are provided. The storage function 15 has a function of supplying information to the experience image display function 13 and the confirmation image display function 14 of the display function 12.

<Experience equipment 30>
The experience facility 30 is a facility that has a structure that imitates a work site where a worker receiving safety training (hereinafter simply referred to as a worker) will work from now on, or a work site where the worker is currently working. . The experience facility 30 is a facility for a worker to experience work, and is a facility in which work-related objects, which are objects related to the work performed by the worker at the work site, are arranged. For example, when performing plasterboard installation work as shown in Figure 3, a model of the base material of the wall on which the plasterboard will be installed (see Figure 2 (C)), or a model of the gypsum board to be installed on the base material (see Figure 2 (C)). (see (D)), tools such as electric drills used to install gypsum board on the base material are placed in the experience facility 30 as work-related items.

Furthermore, the experience facility 30 is provided with a plurality of sensors 31 that detect the position of the worker. The plurality of sensors 31 have a function of detecting a worker. When the signal from this sensor is sent to the training image control function 11 of the control unit 10, the training image control function 11 analyzes the signal from the sensor and determines the current position of the worker within the experience facility 30. It is possible to grasp whether or not the worker is moving, the direction in which the worker is moving, etc. (hereinafter, these may be collectively referred to as the "state of the worker"). Therefore, the training image control function 11 can create VR images and MR images tailored to the condition of the worker. As such a sensor, an infrared sensor, an ultrasonic sensor, a camera sensor, etc. can be used, but any sensor that can achieve the above purpose is sufficient and is not particularly limited.

In the case of the above-mentioned gypsum boarding work, the base material model is installed in a fixed state in the experience equipment 30 (in a state that it does not move even when the gypsum boarding work is performed). On the other hand, the gypsum board and tools are placed in such a way that workers can pick them up and carry them, or fix the gypsum board to a model of the base material.

In addition, when installing gypsum board in a high position, or when installing gypsum board on the ceiling, workers may stand on a horse or move while working. Type scaffolding, frame scaffolding, etc. are also installed in the experience facility 30 in a fixed state (they do not move even when plasterboarding is done) or in a movable state (see Figures 3 (A) to (C)).

Further, the work-related objects installed in a fixed state in the experience equipment 30 may be those suitable for the work that the worker experiences, and the work-related objects installed in the experience equipment 30 in a movable manner. Tools and the like suitable for the work that the worker will experience may be arranged.

<Image display device 5>
The image display device 5 is worn by a worker when experiencing work in the experience facility 30. This image display device 5 has a display section 5a that displays an image that can be viewed by the worker wearing the device. More specifically, the image display device 5 has a display section 5a that is placed in front of the worker when the worker wears the image display device 5, and the image displayed on the display section 5a (MR images and VR images) that can be viewed by the operator. This image display device 5 has a function of detecting the direction of the face of the worker wearing it, a function of detecting the line of sight, etc.

The image display device 5 has a photographing function for photographing an image (for example, an image of the experience equipment 30) necessary for the control section 10 to form the MR image when displaying the MR image on the display section 5a. Use the one you made. More specifically, the image display device 5 is used which has a photographing function of photographing an area that can be visually recognized by the worker when the worker is not wearing the image display device 5. For example, a general head-mounted display having a stereo camera that photographs the front of the image display device 5 can be used as the image display device 5.

The image display device 5 is not particularly limited as long as it can be worn and used by a worker and has the above-mentioned functions, but a head-mounted display as described above can be used.

In addition, the image display device 5 not only has a function of detecting the direction of the worker's face and the line of sight, but also has a function of detecting the movement of the worker, changes in posture, and movements of the hands. It's okay. In this case, there is a possibility that the sensor 31 may not be provided in the above-described experience facility 30, or even if the sensor 31 is provided, the number of sensors 31 may be reduced. When detecting movement of the worker, change in posture, movement of hands, etc., the image display device 5 may be provided with a sensor to detect these movements to detect the movement of the worker, or the control unit may detect the movement of the worker. In step 10, images of hands and the like in images photographed by the image display device 5 may be analyzed to detect their movements. Of course, movement of the worker may be detected using both sensors and image analysis.

Further, the image display device 5 does not necessarily have a function of detecting the direction of the face of the worker wearing the image display device 5 or a function of detecting the line of sight of the worker, and the image display device 5 does not necessarily have the function of detecting the direction of the face of the worker wearing the image display device 5, and the function of detecting the line of sight of the worker. Any image may be used as long as it allows the operator to visually recognize the image (MR image or VR image described later). If the image display device 5 does not have a function to detect the direction of the face of the worker wearing the image display device 5, a sensor or the like to detect the direction of the worker's face may be connected to the image display device 5 or the worker. It may also be attached to the worker's head to detect the direction of the worker's face. Further, although it is not necessarily necessary to provide a function to detect the line of sight of the worker, if the image display device 5 has a function to detect the line of sight of the worker, the image displayed on the display unit 5a can be more appropriately adjusted. This is preferable because it can be used as an image, allows more accurate understanding of the worker's condition, such as whether the worker is performing visual safety checks, and can be used to provide appropriate guidance to safety managers.

<Image display section 2>
The image display section 2 is a general display device, and is capable of displaying images supplied from the control section 10. The image display section 2 may be any device as long as it can display the image supplied from the control section 10. For example, if the control unit 10 has a display like a notebook computer, the display of the control unit 10 can be used as the image display unit 2. Furthermore, even if the control section 10 has a display, a display device (separate display device) provided separately from the display of the control section 10 may be used as the image display section 2. Further, a plurality of image display sections 2 may be provided. In this case, both the display of the control unit 10 and the separate display device may be used as the image display unit 2, or a plurality of separate display devices may be provided and only the plurality of separate display devices may display images. It may also be used as part 2.

<Input section 3>
The input unit 3 has a function of inputting various information, and has a function of supplying the input information to the control unit 10. For example, the worker safety education system 1 of this embodiment may provide information about a worker who is undergoing work experience, or a person who is supervising the work experience of this worker (a worker who is monitoring the status of the work experience). It has a function of inputting information of a manager, etc.) and supplying the input information to the control unit 10. The input unit 3 also has a function for inputting caution information, information on estimated danger locations, etc., which will be described later. As described above, the information input from the input section 3 is transmitted to the control section 10, and the storage function of the control section 10 causes the image displayed on the image display section 2 and the information to be displayed on the display section 5a of the image display device 5. The image is stored in the storage unit 20 in association with the image.

Note that the input unit 3 may include, for example, a keyboard, a mouse, a touch panel, etc., but is not particularly limited as long as it allows a worker, a work manager, etc. to input predetermined information. If voice input is to be performed as described later, in addition to a keyboard or the like, a device capable of voice input (for example, a microphone, a device with a built-in microphone, etc.) may be used as the input unit 3.

<Work experience using the worker safety education system 1 of this embodiment>
Since the worker safety education system 1 of this embodiment has the above configuration, the worker can experience the work as described below (see FIG. 4).
Below, a case where an MR image is displayed on the display unit 5a of the image display device 5 will be described.

First, information about the worker who will carry out the work experience, information about the work manager of the worker who will carry out the work experience, etc. is input from the input unit 3. When the input of the predetermined information is completed, the image display device 5 is made to be worn by the worker who will perform the work experience.

Next, the display position of the BIM model in the MR image is adjusted so that the BIM model matches the photographed image of the experience facility 30 photographed by the photographing function of the image display device 5 in the MR image. For example, if the experience facility 30 is a facility where you can experience plasterboarding work on the base material of a wall, MR is performed so that the model of the base material of the experience facility 30 in the photographed image matches the base material of the BIM model. Adjust the display position of the BIM model in the image.

The display position may be adjusted automatically by the control unit 10 if the photographing function of the image display device 5 photographs the model of the base material of the experience facility 30, or by checking the MR image. Adjustments may be made by a person while doing so.

Further, if positioning marks are provided on the base material model of the experience facility 30 for positioning, the position adjustment by the control unit 10 can be easily and automatically performed. For example, using a QR code (registered trademark) as an alignment mark, coordinate values in a three-dimensional space expressed in a BIM model (coordinate values in a three-dimensional space of the position where the QR code (registered trademark) is provided) If such information is included in the QR code (registered trademark), the position can be adjusted by the control unit 10 simply by photographing the QR code (registered trademark) using the photographing function of the image display device 5.

When the position adjustment by the control unit 10 is completed, a command to start work is input from the input unit 3, and storage of the MR image displayed on the display unit 5a of the image display device 5 into the storage unit 20 is also started. Then, the operator performs plasterboarding work based on the MR image displayed on the display unit 5a of the image display device 5 (see FIGS. 3A to 3C). At this time, both the MR image displayed on the display unit 5a of the image display device 5 and the BIM model of the work site used to form the MR image (that is, the BIM model of the work site that includes areas other than those visible to the worker). , or either one is displayed on the image display section 2. Therefore, a work manager or the like can confirm the viewpoint of the worker who is experiencing the work and the situation of the entire work site.

When the series of tasks is completed, a command to end the tasks is input from the input unit 3, and the experience task is completed. Then, the display of the MR image on the display section 5a of the image display device 5 and the storage of the MR image in the storage section 20 by the control section 10 are also stopped.

As described above, by using the worker safety education system 1 of the present embodiment, it is possible to carry out actual plasterboard installation work while visually checking the MR image that reproduces the actual work site, so that the worker can You can have a work experience similar to what you would do at a work site. Then, it is possible to make the worker aware of things to be careful of at the actual work site, and to increase the worker's awareness of unsafe behavior.

For example, at an actual work site, there may be a through hole in the floor and the user must move while avoiding the through hole. When experiencing work at such a work site, the MR images reproduce almost the same conditions as the actual work site, so even if the experience equipment 30 has a floor without through holes, the MR images do not have through holes. (See h in FIG. 2(B)). Therefore, the worker can experience moving around the work site while being aware of the existence of the through hole. Moreover, it makes workers aware of the existence of through holes at the actual work site, which prevents accidents such as falling due to not noticing the through holes when working at the actual work site. The effect will be higher. Furthermore, if a warning sound is emitted when a foot is placed in the position of a through-hole, the worker will be made more aware of the existence of the through-hole, which will further increase the effectiveness of preventing accidents. be able to.

<When displaying a VR image on the display section 5a of the image display device 5>
In the above example, a case has been described in which an MR image is displayed on the display section 5a of the image display device 5, but a VR image (see FIGS. 3(D) to (F)) is displayed on the display section 5a of the image display device 5. In this case, it is not necessary to provide the experience facility 30 as described above. On the other hand, in this case, the worker needs to grasp or manipulate the plasterboard, tools, etc. displayed as a VR image with the worker's hands displayed in the VR image. Then, the position of the worker's hand and the plasterboard, tools, etc. in the VR image need to be aligned and displayed in the VR image, so in order to detect the worker's hand, the position of the worker's hand and the It is necessary to wear a sensor (for example, a glove-like sensor) that detects movement.

<Safety confirmation education using worker safety education system 1 of this embodiment>
As described above, by implementing work experience using the worker safety education system 1 of this embodiment, it is possible to make workers aware of the situation at the work site, dangerous actions, and the like. In order to strengthen worker awareness, that is, to increase the effectiveness of safety education, after carrying out work experience, check the status of your work experience and check whether there is any unsafe behavior during the work yourself or at the work. It is advisable to discuss this with your administrator.

Therefore, the worker safety education system 1 of the present embodiment has a function of allowing the worker who has performed the work experience to check the status of the experience work and to examine whether there is any unsafe behavior.

<Display function 12>
As shown in FIG. 1, the control unit 10 of the worker safety education system 1 according to the present embodiment has a display function that causes the image display unit 2 to display a confirmation image for confirming the work status of the worker who has performed the work experience. It has 12.

The display function 12 includes an experience image display function 13 that causes the image display unit 2 to display a VR image or MR image (hereinafter simply referred to as an experience image) when a worker performs a work experience, which is stored in the storage unit 20. and a confirmation image display function 14 that causes the image display unit 2 to display the caution information, etc. input from the input unit 3 and the experience image while the experience image is being displayed by the experience image display function 13. There is.

<Experience image display function 13>
The experience image display function 13 includes a display function 13a that selects an experience image to be displayed on the image display section 2 based on information input from the input section 3, and displays the experience image on the image display section 2; and an information storage function 13b that associates the information input from the input unit 3 with the displayed experience image and stores it in the storage unit 20 while the image is displayed.

The display function 13a displays selection information to the storage function 15 based on information on the experience work input from the input unit 3 (worker's name, date of experience work, etc., hereinafter simply referred to as selection information). It has a function to send image request commands including. Then, the display function 13a is provided with the experience image and information stored in association with the experience image (hereinafter both may be simply referred to as experience image information) based on the image request command from the storage function 15. It has a function of continuously displaying a plurality of images (frames) included in the experience images included in the provided experience image information on the image display section 2. The experience image is an MR image or a VR image that was displayed on the display unit 5a of the image display device 5 when the worker was performing the experience work (see FIGS. 3(D) to 3(F)). The function 13a causes the image display unit 2 to continuously display the selected experience images.

Note that, hereinafter, continuously displaying a plurality of images (frames) included in an experience image may simply be referred to as "displaying the experience images consecutively."

When caution information is input from the input unit 3 while the experience image is being displayed by the display function 13a, the information storage function 13b adds the input caution information to the experience image information and stores it as training result information. It has a function of supplying function 15. More specifically, in the experience image, the image (frame) at the timing when the caution information was input from the input unit 3, the information of the inputter who inputted the caution information, and the input caution information are correlated and experienced. It has a function of adding to the image information and supplying it to the storage function 15 as training result information.

Caution information specifies the recognized unsafe behavior when the worker determines that he or she has engaged in unsafe behavior or that there is a possibility of unsafe behavior occurring when checking the experience image. This is the information that will be used. The method of inputting the caution information and the format of inputting the caution information are not particularly limited. Caution information may be written freely in text format, or caution information corresponding to the unsafe behavior recognized by the inputter can be selected from predetermined words, symbols, marks, etc. (hereinafter referred to as tags). You may also do so. For example, the input unit 3 is provided with an unsafe behavior table having tags that display a plurality of unsafe behaviors assumed in the experience image (see FIG. 7(A)), and appropriate tags are selected from this unsafe behavior table. may be selected and input as caution information. In the case of Figure 7 (A), fall tags, fall tags, and collision tags are prepared as tags that display unsafe behavior, so the input user selects the tag that corresponds to the unsafe behavior recognized from among these tags. If you save the tag, the tag information is stored in the training result information in association with the image (frame) in which the tag is saved.

The information storage function 13b also has a function that allows the worker to input information on an estimated danger location where unsafe behavior may occur when inputting caution information. Specifically, after or before inputting the caution information using the input unit 3, the system has a function of selecting the estimated danger location or its vicinity in the experience image using a mouse or the like, and specifying the estimated danger location. ing. The information storage function 13b has a function of adding the input information on the estimated danger location to the training result information and supplying the information to the storage function 15. When the above-mentioned tag is prepared, the information storage function 13b may have a function of inputting information about the estimated danger location by placing an image of the selected tag at the estimated danger location.

Note that the information storage function 13b does not necessarily need to supply the training result information to the storage function 15 with the information on the estimated danger location added. In this case, the information storage function 13b associates the information of the estimated danger location with the corresponding caution information of the training result information (for example, the information of the corresponding image (frame) of the experience image, etc.) and stores it in the storage function 15. All you have to do is supply it.

Furthermore, the information storage function 13b does not necessarily have to be configured to input information on estimated danger locations. However, if information on estimated danger locations is also entered, the person who entered the caution information would be able to properly understand actions that they recognized as unsafe. This makes it easier for work managers, etc. to evaluate whether or not they are properly understanding unsafe behavior.

<Confirmation image display function 14>
The confirmation image display function 14 selects training result information to be displayed on the image display section 2 based on information input from the input section 3, and displays the experience image and caution information included in the training result information on the image display section. It has a function to display on 2. Specifically, the confirmation image display function 14 continuously displays the images (frames) of the experience images included in the training result information, and displays the experience images and the caution information for images in which caution information has been input in the experience images. It also has a function of displaying the image on the image display section 2 at the same time.

Additionally, if the information on the estimated danger location is entered in the training result information, caution information will be displayed at or near the position designated as the estimated danger location in the experience image, that is, the experience image and the caution information will be displayed. It has the function of overlapping display. For example, if tag information is included in the training result information as caution information, as shown in FIG. It has a function to display a tag near the location where a risk has occurred (or is likely to occur) (estimated danger location).

<Example of safety confirmation education by worker safety education system 1 of this embodiment>
A method of safety confirmation education using the worker safety education system 1 of this embodiment will be explained.

First, input of caution information in safety confirmation education will be explained (see FIG. 5).

The experience image display function 13 of the display function 12 of the control unit 10 is activated to select a work experience for implementing safety confirmation education. Specifically, selection information such as the name of the worker who performed the trial work and the date on which the trial work was performed is input from the input unit 13. Note that if a plurality of workers have performed the trial work multiple times and an ID is set for each trial work, the ID may be input from the input unit 13.

When the selection information is input, the experience image display function 13 of the display function 12 transmits an image request command to the storage function 15 based on the selection information. Then, the storage function 15 reads the experience image information corresponding to the selection information from the storage unit 20 and supplies the experience image information to the experience image display function 13.

When the experience image information is supplied, the display function 13a of the experience image display function 13 causes the image display unit 2 to continuously display the experience images. Note that the timing to start displaying the experience image may be determined by an input person such as a worker checking the experience image by operating the input unit 13, or it may be determined after a certain period of time after selection information is input. , the display of the trial image may be automatically started.

If the worker who is checking the experience image displayed on the image display section 2 determines that unsafe behavior has occurred or that there is a possibility that unsafe behavior may occur, the worker can input Caution information (worker caution information) is input from section 3. At this time, the display of the experience image is temporarily stopped in the state of the image in which it is determined that unsafe behavior is occurring or that unsafe behavior may occur, and caution information is input. For example, if an unsafe behavior table is provided, a tag that corresponds to the unsafe behavior that the worker has recognized is selected from the unsafe behavior table, and the tag is used to identify the tag that is likely to cause the unsafe behavior. Place it in a certain dangerous place. Then, the information storage function 13b stores the experience image displayed in a temporarily stopped state and the caution information in association with each other.

When the display of the experience image is finished, the information storage function 13b supplies the storage function 15 with training result information in which the caution information is added to the experience image information. Then, the storage function 15 causes the storage unit 20 to store the training result information supplied from the information storage function 13b in association with the experience image information that is the source of the training result information.

Further, the work manager also checks the experience images of the same work experience in a similar manner. Then, the training result information of the same experience image also includes the worker manager caution information input by the work manager.

Next, confirmation of workers' experience work in safety confirmation training will be explained (see Fig. 6).

When the training result information including the worker caution information is formed, the confirmation image display function 14 of the display function 12 is activated to select the training result information to be confirmed. The training result information can be selected in the same manner as the experience image display function 13.

When the selection information is input, the confirmation image display function 14 of the display function 12 transmits an image request command to the storage function 15 based on the selection information. Then, the storage function 15 reads training result information corresponding to the selection information from the storage unit 20 and supplies the training result information to the confirmation image display function 14.

When the training result information is supplied, the confirmation image display function 14 causes the image display section 2 to continuously display the experience images included in the training result information. Note that, similarly to the experience image display function 13, the timing to start displaying the experience image may be determined by an input person such as a worker who confirms the experience image by operating the input unit 13, or the timing to start displaying the experience image may be determined by operating the input unit 13. The display of the experience image may be automatically started after a certain period of time after the input.

The confirmation image display function 14 continuously displays the experience images, but when an image in which either worker caution information or worker manager caution information is input is entered, the display pauses at that experience image. , the experience image and the caution information are displayed on the image display section 2 at the same time. For example, if a tag selected from the unsafe behavior table is placed at an estimated danger location and caution information is entered, the selected tag will be displayed overlapping the location where the tag is placed in the experience image (Figure 7 (B) reference). In addition, if the tag placed by the worker and the tag placed by the worker administrator are placed in the same experience image and in the same position, or if the tag placement hides important information in the experience image. In this case, the tag is placed near the estimated danger location (see FIG. 7(C)).

Here, if the tag placed by the worker and the tag placed by the worker administrator are placed in the same experience image and at the same position (see Figure 7 (C)), the worker may It can be evaluated that the person is aware of safe behavior. In other words, if a worker who has carried out a work experience checks this experience image, he or she can confirm that his/her recognition is correct, and if a work manager checks this image, the worker can confirm that he or she has not properly performed the work. It can be evaluated that the person is aware of safe behavior.

On the other hand, if the worker has not placed a tag on the experience image for which the worker administrator has placed a tag, or if the worker has placed a tag but the type of tag is not the same as the tag placed by the worker administrator. If the tags are different or if the tags are placed in the wrong position even if they are the same, it can be evaluated that the worker is not aware of the unsafe behavior. In other words, if the worker who carried out the work experience sees this experience image, he or she will understand that he or she is not aware of the unsafe behavior, and if the work manager sees this image, he or she will be able to It can be evaluated that the person is not aware of unsafe behavior. Furthermore, the worker can check the experience image in which the tag has been placed by the worker manager, the type of tag, the placement position of the tag, etc., so that the worker can deepen their awareness of unsafe behavior. When a work manager checks this image, it is possible to understand the worker's awareness of unsafe behavior, and there is a possibility that the worker manager himself can discover unsafe behavior that he is not aware of.

As described above, by implementing the safety confirmation education using the worker safety education system 1 of the present embodiment, it is possible to deepen the understanding of unsafe behaviors of workers, and it is possible for workers and worker managers to Able to appropriately evaluate unsafe behavior. In particular, workers can use images of the work site they are about to perform to check the experience images of their own experience work and understand unsafe behavior, which reduces the occurrence of unsafe behavior at the work site. In other words, the effect of safety education for workers can be enhanced.

In particular, if the worker who performed the trial work and the administrator who entered the worker manager caution information for the trial work check the trial image together, they can easily identify the difference between the worker caution information and the worker manager caution information. Since the worker can ask questions and the worker manager can provide explanations, it is possible to deepen workers' awareness of unsafe behavior.

<About the confirmation image display function 14>
In the above example, the confirmation image display function 14 temporarily stops displaying the image for an experience image in which caution information has been input, but even for an image in which caution information has been input, the confirmation image display function 14 continuously displays the experience image. It may be displayed. However, it is preferable to use a still image for the experience image in which unsafe behavior has occurred (or in which it is estimated) because the state of unsafe behavior and caution information can be clearly recognized. Of course, if the experience images are displayed continuously even if the caution information has been input, the images can be paused when a pause command is input from the input unit 3. .

When displaying the experience image on the image display unit 2, the confirmation image display function 14 may always display worker caution information and worker manager caution information together with the experience image (see FIG. 7(C) )reference). Further, when there is a display command from the input unit 13, if caution information is input to the experience image to which the command is input, the caution information is displayed together with the experience image, and if the caution information is input. If so, nothing may be displayed (the experience image remains displayed), or a mark pointing out a mistake may be displayed. In this way, when checking the experience images, it is possible for the worker to examine the occurrence of unsafe behavior each time, and to have the effect of increasing awareness of unsafe behavior. For example, when a worker confirms the experience image displayed by the confirmation image display function 14 and recognizes the existence of unsafe behavior, the operator inputs a display command, and if caution information is displayed, the unsafe behavior It can be confirmed that the recognition of Furthermore, if the warning information is not displayed, it can be confirmed that the recognition of unsafe behavior is not stable. Further, if the worker manager caution information is displayed although the worker caution information is not displayed, it can be confirmed that the worker's awareness of unsafe behavior has improved.

In addition, if the estimated danger location information has been input, the caution information may be displayed at or near the estimated danger location over the experience image, or the caution information may be displayed in a separate window, etc. You may. Furthermore, if the estimated danger location information has not been input, the caution information may be displayed at a predetermined position overlapping the experience image, or the caution information may be displayed in a separate window.

<Information addition function>
The confirmation image display function 14 may have an information addition function that adds information later to the caution information that has already been input. If such a function is provided, awareness of unsafe behavior can be further raised. For example, by adding and storing things that the worker noticed when checking the experience images as caution information, it is possible to check changes in the worker's consciousness. In addition, when a worker and a work manager check the experience images together, if the work manager's points are entered, the work manager can You can reconfirm your points. Then, even if there is no work manager, the same educational effect as when checking the experience images together with the work manager can be obtained. For example, work managers may point out why the behavior is unsafe (reasons why it is considered unsafe behavior) and what should have been done or what should have been done to avoid the unsafe behavior. By providing additional information such as methods for avoiding safe behavior, it is possible to deepen workers' understanding of unsafe behavior. In addition, workers' comments include answers to questions about why they acted that way (causes of unsafe behavior) and what they should have done or should have done to avoid unsafe behavior ( By providing additional information such as methods for avoiding unsafe behavior, it is possible to improve workers' awareness of unsafe behavior.

In this case, information may be added to the caution information by adding the information as text using a keyboard or the like, or by adding the information as voice information. For example, the input unit 13 is provided with a voice input function, and the confirmation image display function 14 is provided with a selection function 14a for selecting caution information. When caution information is selected by the selection function 14a, the selected caution information and the selector who selected the caution information (that is, the inputting person) ) is provided. Then, the conversation between the work manager and the worker who is checking the experience video regarding caution information can be memorized, so if the conversation etc. is checked later, when the worker is checking the experience image alone, the work manager can You can reconfirm the points made. Then, even if there is no work manager, the same educational effect as when checking the experience images together with the work manager can be obtained. Note that the voice storage function 14b may store the voice information as is as additional information, or may convert the voice information into text information and store it.

<Evaluation function 16>
The control unit 10 may have an evaluation function 16 that evaluates the worker based on the caution information included in the experience image. The experience video and the caution information are stored in the storage unit 20 in association with information about the worker who performed the experience work of the experience video and the worker who input the caution information. Therefore, by using the caution information and worker information from the information of the experience video stored in the storage unit 20, it is possible to objectively judge each worker's recognition of unsafe behavior. Once such a determination is made, safety education suitable for each worker can be provided to resolve problems unique to each worker.

For example, if a worker is able to fully foresee and avoid a fall or fall, but is not able to fully foresee or avoid a collision, the worker may It can be determined that the user's attention level is low (see FIG. 8(A)).
In addition, if the worker is able to sufficiently foresee and avoid falls, but falls cannot be sufficiently predicted or avoided, it is important to note that the worker is sufficiently careful about large obstacles, etc. However, it can be determined that the user's attentiveness is low when it comes to small obstacles and the like (see FIG. 8(A)).
Furthermore, even in plasterboard installation work, unsafe behavior can be sufficiently predicted and avoided in wall installation work, but unsafe behavior cannot be sufficiently predicted or avoided in ceiling installation work. , it can be determined that the worker is not good at ceiling work (see FIG. 8(B)).

The method of presenting such evaluation is not particularly limited, but for example, if it is displayed as a table such as a graph as shown in FIG. It also becomes easier to compare with workers.

Further, when the caution information includes audio information as described above, it is also possible to analyze the words included in the audio information and evaluate the characteristics of each worker.

<Other examples of safety confirmation education by worker safety education system 1 of this embodiment>
In the above example, the case where the safety confirmation education was carried out based on the images etc. obtained when the worker who carried out the safety confirmation education had a work experience was explained, but the worker safety education system 1 of this embodiment The images used in the safety confirmation training (corresponding to the confirmation images referred to in the claims) are not necessarily limited to images obtained during work experience. For example, the above-mentioned safety confirmation training may be carried out using only a BIM model prepared in advance formed by a BIM system or the like. In this case, the worker safety education system 1 does not need to have the image display device 5 or the experience equipment 30, and the control unit 10 can perform the experience work in the training image control function 11 and the memory function 15. It is not necessary to have the function of storing each piece of information obtained. That is, the control unit 10 has a display function 12 that uses a BIM model prepared in advance, an experience image display function 13, and a storage function 15 that does not have a function to store each information obtained in the experience work, A system including the image display section 2 and the input section 3 may be used as the worker safety education system 1 of this embodiment.

The worker safety education system of the present invention is suitable for use in sending-off training before work at a work site and on-site training at a work site.

1 Safety education system 2 Image display unit 3 Input unit 5 Image display device 5a Display unit 10 Control unit 11 Training image control function 12 Display function 13 Experience image display function 13a Display function 13b Information storage function 14 Confirmation image display function 14a Selection function 14b Voice memory function 15 Memory function 16 Evaluation function 20 Storage section 30 Experience equipment 31 Sensor

Claims (8)

A system used for safety education of workers at a work site,
an image display device having a display unit that is worn by the worker when performing the work experience and displays an image that the worker visually recognizes during the work experience;
a training image control function for controlling an image to be displayed on a display section of the image display device; a function for storing an image visually recognized by the worker during work experience in a storage section as an experience image; a control unit having an experience image display function for displaying an experience image on an image display unit;
an input section in which a worker who has confirmed the experience image and/or a work manager who manages work at the work site inputs caution information as an input person in a state where the experience image is displayed on the image display section; , is equipped with
The control unit includes:
Associating the caution information input from the input unit, information regarding the input person who inputted the caution information, and the experience image displayed on the image display unit when the caution information was input. a memory function for storing the training result information in the storage unit;
A confirmation image display function for displaying the caution information together with the experience image on the image display section based on the training result information stored in the storage section. education system. The input section is
It has a function that allows the input person to input information on an estimated dangerous place where unsafe behavior may occur in the experience image , along with the caution information,
The storage function of the control unit is
It has a function of storing the information on the estimated danger location in association with the training result information, or storing the information on the estimated danger location in association with the training result information,
The confirmation image display function of the control unit is as follows:
When displaying the caution information together with the experience image on the image display unit based on the training result information, the caution information may be displayed at the estimated danger location or in the vicinity of the estimated danger location in the experience image . The worker safety education system according to claim 1, characterized in that: The input section is
voice input function,
a selection function for selecting the caution information displayed on the image display section by a confirmation image display function of the control section;
The control unit includes:
When the caution information is selected by the selection function of the input unit, the voice input by the voice input function of the input unit is associated with the selected caution information and information regarding the selector who selected the caution information. 2. The worker safety education system according to claim 1, further comprising a voice storage function for storing the information. The confirmation image display function of the control unit is as follows :
In a case where worker caution information that is the caution information input by the worker and work manager caution information that is the caution information input by the work manager are stored in association with the same experience image, the worker caution information is stored in association with the same experience image . 2. The safety education for workers according to claim 1, further comprising a function of displaying both the information and the work manager caution information on the image display unit at the same time as the experience image with which both are associated. system. It has experience equipment that simulates a work site where workers wearing the image display device experience work,
The image display device includes:
It has a photographing function to photograph an area that is visible to the worker,
The control unit includes:
a detector that detects the movement of a worker wearing the image display device;
An MR image is created based on the signal of the detector, the captured image of the experience equipment taken by the imaging function, and a BIM model that is an image of the work site that is the source of the experience equipment formed by the BIM system. and a training image control function for displaying on a display section of the image display device,
The confirmation image display function is
2. The worker safety education system according to claim 1, further comprising a function of displaying the MR image as the experience image together with the caution information on the image display section. The experience facilities include:
Work-related objects that are objects related to the work performed by workers at the work site that is the source of the experience equipment are arranged,
Among the work-related objects, the objects fixed to the experience equipment include:
6. The worker safety education system according to claim 5, further comprising a positioning mark used for positioning the BIM model and the photographed image. It has an image display device that is worn by a worker and has a display section that displays an image that the worker visually recognizes,
The control unit includes:
It has a training image control function that displays a VR image on the display unit of the image display device based on a BIM model of a work site where workers experience work formed by a BIM system,
The confirmation image display function is
2. The worker safety education system according to claim 1, further comprising a function of displaying the VR image as the experience image together with the caution information on the image display section. The input section is
It has an unsafe behavior table that displays a plurality of unsafe behaviors assumed in the experience image ,
The input person has a selection input function for selecting an unsafe action from the unsafe action table,
The control unit includes:
Claim characterized in that it has an evaluation function that evaluates the input person using information on the input person, information regarding unsafe behavior input by the input person, and the experience image. The worker safety education system described in 1, 2, 3 or 4.

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