JP2021089564A - Construction environment safety determination system - Google Patents

Abstract

To provide a construction environment safety determination system capable of determining whether or not safety for a construction environment is secured before starting construction work in a simplified manner.SOLUTION: There is provided a safety determination system 10 for transmitting image data in which a construction site before starting work is photographed by a portable terminal 12 to a server 24, and for determining whether or not construction environment safety at the photographed site is secured, wherein the portable terminal 12 performs: processing for, when a specific work item is selected, displaying photographing picture items required for determining the construction environment safety in the respective item, causing a photographing function to start, and transmitting the photographed image data to the server 24; and processing for displaying a determination result transmitted from the server 24. The server 24 comprises: storage means 28 having a database recorded with learning data and determination criteria data; computation means 30 for performing the safety determination processing based on recognition of objects included in the received image data and a dispositional state of each object; and communication means 26 for transmitting the determination result to the portable terminal 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a system for determining the state of the construction environment at a construction site, and more particularly to a system for determining the safety of the environment before construction work.

Various systems for determining work safety at construction sites have been studied. For example, the system disclosed in Patent Document 1 determines whether or not the equipment of the worker is appropriate based on the image of the worker taken by a wide-angle surveillance camera installed at a construction site or the like. It is a system that notifies the result. According to such a system, it is possible to automatically determine whether or not the worker who is working has appropriate clothes and equipment, and if it is inappropriate, it is possible to point out that. Therefore, the safety of workers and construction work can be continuously ensured.

In addition, the system disclosed in Patent Document 2 photographs the scaffolding installed at the construction site with a camera that can move on the rails laid at the construction site, and based on the photographed image, there is a risk of construction. It is a system that judges and notifies the construction worker of the judgment result. With this system, it is possible to judge whether the scaffolding is installed or not, and to judge the safety of work.

Japanese Unexamined Patent Publication No. 2014-154129 JP-A-2019-31811

According to the system disclosed in the above patent document, it is possible to check at any time whether the working condition at the construction site is appropriate and the safety is ensured. However, all of the systems disclosed in the above patent documents are monitoring of the construction site during work, and it is not possible to grasp whether or not the work is carried out after ensuring safety.

Therefore, an object of the present invention is to provide a construction environment safety determination system capable of easily determining whether or not the safety of the construction environment is ensured before the start of construction work.

The construction environment safety judgment system according to the present invention for achieving the above object transmits image data of a construction site before the start of work to a server by a mobile terminal having at least a communication function and a shooting function, and transmits the image data. It is a construction environment safety judgment system that judges whether or not the safety of the construction environment at the shooting site is ensured by the received server, and the mobile terminal displays the construction instruction selection item and in the construction instruction selection item. When a specific item is selected, the photographed photograph item necessary for determining the safety of the construction environment in the item is displayed, the photography function is activated, and the photographed image data is associated with the selected construction instruction item. The process of transmitting to the server and the process of displaying the determination result transmitted from the server are performed, and the server is an object necessary for determining the safety of the construction environment determined for each construction instruction selection item. A storage means having a database that records learning data for identifying the object and determination standard data for determining safety based on the arrangement status of the object, a first process for certifying the object, and the object. The image shows a calculation means that performs a determination process for determining whether or not the safety of the construction instruction item is ensured by a second process for determining safety based on the arrangement status of the above, and a determination result obtained by the calculation means. It is characterized by having a communication means for transmitting data to the mobile terminal.

Further, in the construction environment safety judgment system having the above-mentioned characteristics, the learning data individually identifies the objects shown in the image data taken at each construction site, and tags the information with each object. It can be processed data. With such a feature, it is possible to individually recognize and determine an object appearing in the received image data.

According to the construction environment safety judgment system having the above-mentioned characteristics, it is possible to easily judge whether or not the safety of the construction environment is ensured before the start of the construction work.

It is a block diagram which shows the structure of the construction environment safety judgment system which concerns on embodiment. It is a block diagram which shows the structure of the mobile terminal which concerns on embodiment. It is a block diagram which shows the structure of the server which concerns on embodiment. It is a table which shows the construction instruction item for each work in construction, and the classification of the photography item. This is an example of a display means for inputting selection work according to a construction instruction. This is an example of a photographed image of "security fence condition (diagonal front)" where the safety confirmation condition is judged to be good. This is an example of a photographed image of "security fence condition (diagonal rear surface)" where the safety confirmation condition is judged to be good. This is an example of a photographed image of a "chock situation" in which the safety confirmation status is judged to be good. This is an example of display means when it is determined that the safety confirmation status is good. This is an example of a photographed image of "security fence status (diagonal front)" where it is judged that there is a problem with the safety confirmation status. This is an example of a photographed image of "security fence status (diagonally behind)" where it is judged that there is a problem with the safety confirmation status. This is an example of display means when it is determined that there is a problem in the safety confirmation status.

Hereinafter, embodiments of the construction environment safety determination system of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments shown below are a part of the preferred embodiments for carrying out the present invention, and even if the objects and selection items thereof are changed, the present invention is as long as the effects of the present invention are exhibited. Can be considered part of.

[System configuration]
As shown in FIG. 1, the construction environment safety judgment system (hereinafter, simply referred to as the safety judgment system 10) according to the present embodiment is basically a mobile terminal 12 (12a to 12d in FIG. 1) and a server 24. It is configured as.

[Mobile terminal]
The mobile terminal 12 is a terminal owned by workers engaged in work at construction sites a to d, and may be, for example, a high-performance mobile phone (so-called smartphone) or a tablet terminal, as shown in FIG. It suffices that at least a storage means 14, a communication means 16, a display means 18, and a photographing means 20 are provided, and a calculation means 22 that performs processing for each means and an operation function (not shown) are provided.

The storage means 14 is a means for storing application software for operating the safety determination system 10 according to the embodiment, image data photographed by the photographing means 20 described in detail later, a safety determination result of the construction environment, and the like. Is.

In the present embodiment, as application software, the procedure for making a safety judgment of the construction environment is shown, and the captured image data is transmitted to the server 24, and the judgment result received from the server 24 is basically displayed on the display means. The program to be used will be installed in advance. Here, when starting the application software after installing the application software, it is desirable to register unique information for identifying the mobile terminal 12 for transmitting and receiving various data. The unique information may be an ID determined when starting the application software.

The communication means is a means for transmitting the image data photographed by the photographing means 20 and receiving the determination result transmitted from the server 24 whose details will be described later. In the present embodiment, when transmitting and receiving each data, it is preferable to associate the unique information of the mobile terminal 12 with the information related to the item selected on the display screen showing the selected work name. By associating the unique information and the item information with the captured image data in this way, it becomes possible to specify the mobile terminal 12 that performs transmission / reception and to specify the determination criteria when determining the image data.

The display means 18 is an element for visually displaying selection items in the application software, image data taken by the shooting means 20, a determination result transmitted from the server 24, and the like. The present embodiment is provided with an operation function for selecting or the like via the display means 18.

The photographing means 20 may be any means for photographing the construction environment. Further, the arithmetic means 22 is an element for executing various processes such as a process for performing various processes, a process for starting and operating application software, and a process for transmitting and receiving data.

[server]
The server 24 is an element for managing image data taken via the mobile terminal 12 and determining the safety of the construction environment. The server 24 may be provided with at least a communication means 26, a storage means 28, and a calculation means 30.

It suffices if the communication means 26 can receive the image data taken via the mobile terminal 12 and transmit the result of the safety determination of the construction environment via the calculation means 30, which will be described in detail later.

The storage means 28 may be configured by a large-capacity storage device such as a hard disk. The storage means 28 contains at least learning data necessary for determining the safety of the construction environment defined for each construction instruction selection item defined for each construction, a program for performing determination processing based on the learning data, and a determination standard. Data etc. are recorded. Here, the learning data is, for example, an object having a specific shape by individually identifying an object appearing in image data taken at each construction site and tagging each object with information. This is the data for recognizing the object from the image (annotation processing data). Here, the individual identification of an object may be, for example, a process of surrounding or cutting out the corresponding object with a boundary line. In addition, the judgment standard data is data that defines the standard of whether or not it can be recognized that the safety is ensured if the objects recognized based on the learning data are arranged in what kind of positional relationship. All you need is.

The calculation means 30 activates the program recorded in the storage means 28, individually recognizes the objects reflected in the image data transmitted from the mobile terminal 12, and the recognized objects are recognized based on the learning data. It is an element for grasping something and making a safety judgment. In the present embodiment, the safety determination is performed in a two-step process.

First, in the first process, it is determined whether or not the object reflected in the received image data includes an object necessary for ensuring safety specified for each construction instruction selection item. If it is determined in the first process that the object shown in the image data contains an object necessary for ensuring safety, the process proceeds to the second process. On the other hand, when it is determined that the object shown in the image data does not include the object necessary for ensuring the safety, it is determined that the safety of the construction environment is not ensured.

In the second process, the image data related to the determination (image data transmitted from the mobile terminal 12) is projected onto the plane coordinate system, and the positional relationship of each object reflected in the image data is recognized. After the positional relationship of each object is recognized, it is determined whether or not the safety of the construction environment is ensured based on the criterion data. That is, if the positional relationship of the objects satisfies the criteria defined in the determination standard data, it is determined that the safety is ensured, and if the positional relationship does not satisfy the criteria, it is determined that the safety is not ensured.

In most construction sites, the location and environment are different each time, and depending on the site conditions, the bucket car 50 (see Fig. 6), the color cone (registered trademark) 52 (see Fig. 6), and the safety bar 54 (see Fig. 6). It is usual that there is a difference in the arrangement situation and the arrangement form. For this reason, by adopting judgment by a two-step process such as object recognition and judgment (first process) and grasping the arrangement status and judgment (second process), the expandability of judgment is increased and the scale of construction is increased. And even if the form is different, it is possible to deal with it.

[Construction environment safety judgment]
Next, the safety determination of the construction environment using the safety determination system 10 according to the present invention will be described. First, at each of the construction sites a to d, the worker activates the safety determination application software of the mobile terminal 12. When installing or using the application software, it is advisable to determine the key information for recording the transmitted / received data such as the registration of the user ID.

When the safety determination application software is started on the mobile terminal 12, the display means 18 displays the item of the selected work name according to the construction instruction. The selection work varies depending on the characteristics of the work, and multiple work instructions are given for each work. FIG. 4 shows a case where the selection work is “access work” as an example. The access work shown here is a facility work for a communication line, and the selection items in the work include "aerial work platform", "ladder work", "building pillar work", "underground work", "in-house work, etc." Five items such as "work" will be displayed. Needless to say, this selection item can be varied depending on the business type of the construction site, the type of work, and the like.

When the worker (owner of the mobile terminal 12) selects the item of the selected work name, the item of the photograph (image data) required for making a safety judgment when performing each work is presented. For example, when the worker selects "aerial work platform" on the screen for selecting the selected work name, as shown in FIG. 5, "security fence status (diagonal front)", "chock status", and "security fence" Photograph items such as "situation (diagonal rear surface)" are presented. Here, the "security fence status (diagonal front)" and the "security fence status (diagonal rear surface)" are photographs for grasping the installation status of the security fence surrounding the aerial work platform, and are photographs for grasping the installation status of the aerial work platform. It is advisable to take pictures so that the installation status of the security fences on the front, back, and sides of the can be recognized. The security fence referred to here may be, for example, a fence composed of a color cone 52 (see FIG. 6) and a safety bar 54 (see FIG. 6) connecting at least two color cones 52.

Further, the "chock situation" is a photograph for grasping whether or not the wheel chock 56 is formed on the tire of the aerial work platform (bucket car 50), and the tire of the aerial work platform and this A photograph including the wheel chock 56 for the tire may be taken.

In the photographed photograph item, the operator who grasps the photograph to be photographed selects an item such as "moving to photography", and the photographing means 20 is activated. When a photograph of the construction site is taken through the photographing means 20, the image data includes the item selected in the selected work name and the communication means 16 together with the unique number for each mobile terminal 12 such as the user ID. It is transmitted to the server 24 via.

On the server 24 that has received the image data, a program that performs the determination process is started, and the safety determination is made from various viewpoints such as the situation of the construction site, the presence / absence of the installed object, and the arrangement situation. For example, when the captured image data is as shown in FIGS. 6, 7, and 8, the major items that influence the safety judgment are "bucket car (presence or absence of bucket car 50 and arrangement status)" and " The "color cone (presence / absence and arrangement status of the color cone 52)", "bar (presence / absence and arrangement status of the safety bar 54)", and "enclosure check (good / bad of the enclosing range by the safety bar 54)" are determined.

According to the image data shown in FIGS. 6 to 8, the bucket car 50 is parked near the wall and the wheel chock 56 is correctly installed. Therefore, since the safety of the bucket car 50 as a parked state is ensured, the judgment of the bucket car is "〇". Next, since a plurality of color cones 52 are arranged, the determination of the color cone 52 (presence or absence of the color cone 52) is also “◯”. Further, since the safety bar 54 is locked to each color cone 52 to form a safety fence, the determination regarding the bar is also “◯”. Regarding the boxing check, the color cone 52 is arranged so as to surround the bucket car 50 and the safety bar 54 is also locked from the photographs of the diagonal front surface and the diagonal rear surface of the bucket car 50, so that the boxing range is also appropriate. It is determined that the result is "○". Therefore, the safety determination is determined to be "safety is ensured", and the result is transmitted to the mobile terminal 12.

On the mobile terminal 12 that has received the determination result of the safety determination, the determination result is displayed on the display means 18 as shown in FIG. In the example shown in FIG. 9, as the overall judgment, the "safety confirmation status" is set to "◯", and the judgment results for the above four main items are displayed. Then, in the lower half of the screen, the captured image used for the safety determination is displayed.

When it is determined that the safety confirmation status is good, the worker selects the "confirm" item on the screen shown in FIG. 9, and the server 24 indicates that the safety confirmation status before the work is satisfied at the construction site. Send to and register. By performing such operations and registration, it becomes possible to confirm and prove that the work at the relevant construction site was carried out in a safe environment at a later date.

On the other hand, among the image data photographed by the photographing means 20 and transmitted to the server 24, those photographed as "security fence status (diagonal front surface)" and "security fence status (diagonal rear surface)" are shown in FIG. In the case of the case shown in FIG. 11, the server 24 recognizes and determines in the second process that the range shown by the broken line portion is “not surrounded by the safety bar 54”. When such a determination is made, the mobile terminal 12 that has received the determination result displays the determination result as shown in FIG. 12 on the display means 18.

As the determination result, "?" Is indicated as having a problem in the "safety confirmation status", and "?" Is indicated in the problematic item ("enclosed check" in the example shown in FIG. 12). The worker who shows such a judgment result reviews the situation of the item indicated as having a problem, selects the item of "retake", takes a picture of the construction site again, and makes a safety judgment. To do so. In this way, the safety of the construction site can be ensured by repeating shooting and determination until the safety confirmation status becomes "○".

[effect]
According to the safety determination system 10 as described above, the operator can easily determine the safety assurance of the construction environment on the spot before the start of the construction work.

In the above embodiment, as an example, a case where a safety judgment is performed in a construction environment using an aerial work platform has been described. However, as a matter of course, if this system is used, it is possible to judge the safety of the construction environment in other items.

Further, in the above embodiment, since the worker selects "aerial work platform" in the selection of the selected work name, the photographed photograph items are "security fence status (diagonal front)", "wheel chock status", and "security". It was explained that there are three patterns of "fence condition (diagonal rear surface)". However, the photographed photograph items differ depending on the work name to be selected, and the number thereof is not limited to three patterns.

10 ……… Safety judgment system, 12 (12a-12d) ……… Mobile terminal, 14 ……… Storage means, 16 ……… Communication means, 18 ……… Display means, 20 ……… Shooting means, 22… …… Calculation means, 24 ………… Server, 26 ………… Communication means, 28 ………… Storage means, 30 ………… Calculation means, 50 ………… Bucket car, 52 ………… Color cone, 54 ………… Safety bar, 56 ……… Wheel chock

Claims (2)

Whether or not the safety of the construction environment at the shooting site is ensured by the server that receives the image data by transmitting the image data of the construction site before the start of work to the server by a mobile terminal equipped with at least the communication function and the shooting function. It is a construction environment safety judgment system that judges whether
The mobile terminal displays a construction instruction selection item, and when a specific item in the construction instruction selection item is selected, displays a photographed photograph item necessary for determining the safety of the construction environment in the item and a photographing function. At the same time as starting, a process of associating the captured image data with the selected construction instruction item and transmitting it to the server and a process of displaying the determination result transmitted from the server are performed.
The server has learning data for identifying an object necessary for determining the safety of the construction environment determined for each construction instruction selection item, and a determination standard for determining the safety based on the arrangement status of the object. The safety of the construction instruction item is ensured by the storage means having a database in which the data is recorded, the first process of certifying the object, and the second process of determining the safety based on the arrangement status of the object. An arithmetic means for determining whether or not a database is used,
A communication means for transmitting the determination result obtained by the calculation means to the mobile terminal that has transmitted the image data, and
Construction environment safety judgment system characterized by having. The claim is characterized in that the learning data is data in which objects appearing in image data taken at each construction site are individually specified and information is tagged for each object. The construction environment safety judgment system described in 1.

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