KR102344336B1 - Worker safety manegement method and system using biometric information - Google Patents

Abstract

Disclosed are a worker safety management method and a system, which uses biometric information of construction site workers. The disclosed a worker safety management method in a construction site includes the steps of: collecting biometric information of a worker; determining a worker's work risk level by using at least one of worker's underlying disease information and environmental information about a worker's work site; and instructing one of a stoppage of a worker's work and a change in worker's responsibilities to the worker according to the work risk level.

Description

WORKER SAFETY MANEGEMENT METHOD AND SYSTEM USING BIOMETRIC INFORMATION

The present invention relates to a smart construction safety technology for reducing disasters/disasters at a construction site, and more particularly, to a method and system for managing worker safety at a construction site using biometric information.

Accidents of workers occur frequently at construction sites, and regulations or smart construction safety technologies to reduce worker accidents are being actively introduced into construction sites. Such accidents not only occur due to poor construction or external environment, but also occur due to the health condition of workers.

Accordingly, in recent years, using the biometric information of the worker, the development of a method or system for managing the safety of the worker at the construction site is being made.

As a related prior document, there is Republic of Korea Patent Registration No. 10-1866677.

An object of the present invention is to provide a method and system for managing safety of workers by using biometric information of construction site workers.

According to an embodiment of the present invention for achieving the above object, the method comprising: collecting biometric information of an operator; determining the worker's work risk level by using at least one of the biometric information, the worker's underlying disease information, and environmental information on the worker's work site; And according to the work risk level, there is provided a worker safety management method at a construction site comprising the step of guiding one of the worker's work stop and the worker's job change to the worker.

In addition, according to another embodiment of the present invention for achieving the above object, including a biometric information collection sensor and an inertial sensor, the wearable device worn on the body of the operator; And by using at least one of the worker's biometric information, the worker's underlying disease information, and the environmental information about the worker's work site, the worker's job risk level is determined, and according to the job risk level, the worker's There is provided a worker safety management system at a construction site including a safety management device for guiding one of a stoppage of work and a change in a job in charge of the worker to the worker.

According to an embodiment of the present invention, by using not only the biometric information of the worker but also the underlying disease information or the environmental information about the work site, it is possible to accurately determine the work risk of the worker.

In addition, according to an embodiment of the present invention, by preemptively excluding workers with a high probability of occurrence of a safety accident from the work in charge, safety accidents of workers at the construction site can be reduced.

In addition, according to an embodiment of the present invention, by guiding a change in the task of the operator according to the level of the worker's work risk, it is possible to reduce safety accidents and prevent the decrease in work efficiency due to the stop of the work.

1 is a view for explaining a worker safety management system at a construction site according to an embodiment of the present invention.
2 is a view for explaining a method for worker safety management at a construction site according to an embodiment of the present invention.
3 is a view for explaining a method for determining a work risk level according to an embodiment of the present invention.
4 is a view for explaining a method for guiding work contents according to an embodiment of the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining a worker safety management system at a construction site according to an embodiment of the present invention.

Referring to FIG. 1 , an operator safety management system according to an embodiment of the present invention includes a wearable device 110 and a safety management apparatus 120 .

The wearable device 110 is worn on the body of a worker performing work at a construction site. It may be worn on the body of the operator in a form that does not interfere with the operator's work or in a form preferred by the operator.

The wearable device 110 includes a biometric information collection sensor that collects the operator's biometric information, and an inertial sensor that generates movement data of the operator. According to an embodiment, it may further include a positioning sensor. As an embodiment, the biometric information collection sensor may include a body temperature sensor, a heart rate sensor, and a blood pressure sensor, and the inertial sensor may include an acceleration sensor, a gyro sensor, and a geomagnetic sensor as an embodiment.

The safety management device 120 determines the worker's work risk level by using at least one of the worker's biometric information, the worker's underlying disease information, and the environmental information on the construction site that is the worker's work site. And, according to the job risk level, one of the worker's job stoppage and the worker's job change is guided to the worker. According to an embodiment, the safety management device 120 may determine the worker's work risk level by further using the worker's activity amount information or drinking information.

The physical condition of the worker may be confirmed through biometric information, and when work is performed in an unhealthy state, a safety accident may occur. In addition, even if the worker has an underlying disease, the weather at the work site is very hot, or the work site is noisy, the worker's physical condition worsens, increasing the possibility of a safety accident. Accordingly, the safety management device 120 uses the above-described information to determine the work risk level indicating whether the worker is able to work, etc., and recommends the worker to stop the work.

The biometric information and the activity amount information may be provided from the wearable device 110 , or the safety management apparatus 120 may generate the activity amount information from the motion data provided from the wearable device 110 . The underlying disease information and drinking information may be provided to the safety management device 120 through the wearable device 110 or a separate terminal. In addition, the environmental information may include weather information or noise information, and the noise information may be information measured at a work site.

The work hazard level may be variously determined according to an embodiment. For example, the work hazard level may consist of two stages of a low-risk level and a high-risk level, or may consist of three stages of a low-risk level, a medium-risk level, and a high-risk level.

The safety management device 120 guides the worker to one of the worker's job stoppage and the worker's job change according to the job risk level. For example, when the work risk level is configured in two steps, the safety management device 120 may guide the worker to stop work when the high risk level is determined. Alternatively, when the work risk level is configured in two stages, the safety management device 120 may guide the worker to stop the work when the high risk level is determined, and guide the worker to the change in charge when the work risk level is determined to the medium risk level.

The safety management device 120 may guide work stoppage or change in charge in various forms according to embodiments. For example, guide content may be broadcast through a speaker disposed at a work site, or a guide message may be transmitted to the wearable device.

According to an embodiment of the present invention, by preemptively excluding a worker who is highly likely to cause a safety accident from a job in charge, safety accidents of workers at a construction site can be reduced.

2 is a view for explaining a method for worker safety management at a construction site according to an embodiment of the present invention.

The worker safety management method may be performed in a computing device including a processor and a memory, and below, the worker safety management method performed in the safety management device, which is one of the computing devices, will be described as an embodiment.

The safety management device according to an embodiment of the present invention collects the worker's biometric information (S210), and uses at least one of the biometric information, the worker's underlying disease information, and the environmental information about the worker's work site, A risk level is determined (S220). And, according to the determined work risk level, one of the worker's work stop and the worker's job change is guided to the worker (S230). Step S220 is described in more detail with reference to FIG. 3 , and step S230 is described with reference to FIG. 4 .

The method for managing worker safety according to an embodiment of the present invention may further include collecting activity amount information or drinking information of the worker according to the embodiment. do. The safety management device may collect biometric information or activity amount information from the wearable device worn by the worker.

3 is a view for explaining a method for determining a work risk level according to an embodiment of the present invention.

The safety management apparatus according to an embodiment of the present invention determines a work risk level by using a plurality of different types of biometric data values included in biometric information. The plurality of biometric data values may include, for example, body temperature, heart rate, and blood pressure. The safety management device determines the work risk level according to the number of biometric data values out of the normal range among the plurality of biometric data values.

If the temperature or humidity at the work site is very high, heat illness may occur in workers, and when a heat illness occurs, body temperature and heart rate rise, blood pressure drops, and body temperature, heart rate and blood pressure may out of normal range. . Alternatively, when a physical condition is deteriorated due to an underlying disease, the biometric data value may deviate from the normal range.

Referring to FIG. 3 , in step S220 , the safety management device compares ( S310 ) the number of biometric data values that are out of the normal range with the first threshold number TN_1 ( S310 ), and the number of biometric data values that are out of the normal range. When (N) is less than the first threshold number (TN_1), the work risk level is determined as a low risk level (S320).

In addition, the safety management device compares ( S330 ) the number of biometric data values out of the normal range with the first and second threshold numbers TN_1 and TN_2 ( S330 ), and the number of biometric data values out of the normal range is the first If it is greater than or equal to the threshold number (TN_1) and less than the second threshold number (TN_2), the work risk level is determined as a medium risk level (S340).

When the worker has an underlying disease such as high blood pressure, a safety accident may occur even if the number of biometric data values out of the normal range is small. Even if it is greater than or equal to the threshold number TN_1 and less than the second threshold number TN_2, if the worker has a preset underlying disease, the job risk level may be determined as a high-risk level rather than a medium-risk level. In addition, when the humidity exceeds a preset threshold, the worker's work hazard level may be determined as a high-risk level rather than a medium-risk level.

The safety management device compares (S350) the number of biometric data values that are out of the normal range with the second threshold number TN_2 (S350), and the number N of biometric data values that are out of the normal range is the second threshold number ( TN_2) or higher, the work risk level is determined as a high risk level (S360).

On the other hand, after the work hazard level is determined to be a medium risk level, there is no change in the number of biometric data values outside the normal range, but the biometric data values outside the normal range rapidly increase or decrease, resulting in a situation that greatly deviates from the normal range. can In this case, since the worker's physical condition worsens and the possibility of a safety accident increases, the safety management device determines that the rate of change of at least one of the biometric data values outside the normal range after the work risk level is determined to be a medium risk level is equal to or greater than the first threshold value In this case, the work hazard level may be determined as a high hazard level.

In addition, the safety management device is a wearable device worn by an operator determined as a medium risk level to intensively monitor the physical condition of the operator determined as a medium risk level, and the sampling frequency of the biometric information collection sensor is changed from the first frequency to the second frequency You can send a request message to change. The second frequency is a sampling frequency higher than the first frequency, and the wearable device changes the sampling frequency of the biometric information collection sensor from the first frequency to the second frequency according to the request message.

When the sampling frequency of the biometric information collection sensor increases, the biometric information collection cycle is shortened. Therefore, when the physical condition of the worker deteriorates, the safety management device may more quickly determine the worker's work risk level as a high risk level. In addition, when the physical condition of the operator is good, biometric information is collected at a first frequency lower than the second frequency, thereby reducing power consumption of the wearable device.

After the normal range is preset as an initial value according to the age and gender of the manager, the normal range may be variously adjusted by the manager's physical condition or external environment. The safety management device may adjust the upper and lower limits of the normal range according to at least one of the temperature, humidity, and activity amount of the worker at the job site.

The safety management device decreases the upper limit of the normal range and increases the lower limit of the normal range when the temperature of the work site is above the second threshold or the humidity is above the third threshold. That is, the safety management device may preemptively reduce the possibility of a safety accident by reducing the width of the normal range so that the number of workers with a high risk level increases when there is a high possibility that a heat disease will occur due to the weather at the work site.

Alternatively, the safety management device increases the upper limit of the normal range and decreases the lower limit of the normal range when the temperature is less than the second threshold and the worker's activity is greater than or equal to the fourth threshold in a state where the humidity is less than the third threshold . Even if the temperature and humidity of the work site are low, the number of biometric data values outside the normal range may increase if the worker has a lot of activity. It is a situation that is unrelated to the situation and the probability of a safety accident is low. Accordingly, in the above-described situation, the safety management device reduces the width of the normal range so that the number of workers with a high risk level is reduced, thereby reducing unnecessary work interruption of workers. The safety management device may generate activity amount information by using the movement data of the worker.

4 is a view for explaining a method for guiding work contents according to an embodiment of the present invention.

Referring to Figure 4, the safety management device according to an embodiment of the present invention, in step S230, when the worker's work risk level is a medium risk level, guides the change of the worker's job (S410). For example, the safety management device may guide the operator to perform a task performed in the shade.

The safety management device guides the worker's work stoppage when the worker's work risk level is a high risk level (S420).

In addition, the safety management device may use the movement data of the operator received within a preset response time from the point in time when the guidance is made to confirm whether the information is the operator's guidance (S430). If the operator does not recognize the information by checking the information, a safety accident may occur because the operator cannot stop the operation or change the task in charge. The response time for the medium risk level may be set to be longer than the response time for the high risk level.

The safety management device, in consideration of the environment in which the operator is performing the operation, checks whether the operator's guidance is provided by using preset movement data. When the operator recognizes the guide content, by taking a preset movement, motion data for recognition of the guide content may be generated. For example, the movement for recognizing the task stop guidance content may be a walking motion, and the movement for recognizing the task change guidance content may be a motion of waving a hand up and down.

And, according to the confirmation result of step S430, the safety management device guides the worker's work risk level to surrounding workers located within a preset distance from the worker (S440). When it is confirmed that the target worker with a medium or high risk level did not recognize the guidance, the safety management device guides the surrounding workers to the target worker's work hazard level, thereby inducing the surrounding workers to check the target worker, resulting in a safety accident to prevent The safety management device preferentially guides the target worker's work hazard level to the low-risk surrounding workers among the surrounding workers. Guide the risk level.

On the other hand, depending on the work environment, even if the worker's work risk level is determined to be a high risk level, there are cases in which work is possible when leaving the current work place. For example, when a large noise is generated in a specific place of the work site and the work hazard level of the worker is determined to be a high risk level due to the stress caused by the noise, it is sufficient to separate the worker from the noise generating area without stopping the work.

Accordingly, the safety management device, when the temperature is less than the first threshold, the humidity is less than the second threshold, and the noise of the working environment is above the threshold level, when the worker's work level is a medium risk level or a high risk level, Operators can be instructed to change their responsibilities from a noisy area to a work performed in a remote area.

The technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. A hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all of the claims and all equivalents or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

Claims (10)

In a method for managing worker safety at a construction site, performed by a computing device,
collecting biometric information of the worker including a plurality of biometric data values of different types from a biometric information collection sensor of the wearable device worn by the worker;
determining the worker's work risk level by using at least one of the biometric information, the worker's underlying disease information, and environmental information on the worker's work site; and
Comprising the step of guiding one of the worker's job stop and the worker's job change according to the job risk level to the worker,
Determining the worker's work risk level comprises:
determining the work risk level according to the number of biometric data values out of the normal range among the plurality of biometric data values;
When the number of biometric data values out of the normal range is less than a first threshold number, the work risk level is determined as a low risk level,
When the number of biometric data values out of the normal range is greater than or equal to the first threshold number and less than the second threshold number, the work risk level is determined as a medium risk level,
When the number of biometric data values out of the normal range is equal to or greater than the second threshold number, the work risk level is determined as a high risk level,
After the work risk level is determined to be the medium risk level, when the rate of change of at least one of the biometric data values out of the normal range is equal to or greater than a fourth threshold, determining the work risk level as the high risk level,
The wearable device worn by the worker whose work risk level is determined to be the medium risk level,
changing the sampling frequency of the biometric information collection sensor from a first frequency to a second frequency higher than the first frequency
How to manage worker safety on a construction site.
delete The method of claim 1,
The step of determining the worker's work risk level is
When the temperature of the work site is above the first threshold or the humidity is above the second threshold, decreasing the upper limit of the normal range and increasing the lower limit of the normal range
How to manage worker safety on a construction site.
4. The method of claim 3,
Further comprising the step of collecting the activity information or drinking information of the worker,
The step of determining the worker's work risk level is
When the temperature is less than the first threshold and the amount of activity of the worker is greater than or equal to the third threshold in a state where the humidity is less than the second threshold, increasing the upper limit and decreasing the lower limit
How to manage worker safety on a construction site.
delete The method of claim 1,
The step of determining the worker's work risk level,
When the worker has a preset underlying disease, and the number of biometric data values outside the normal range is greater than or equal to the first threshold and less than the second threshold, determining the job risk level as the high risk level,
How to manage worker safety on a construction site.
The method of claim 1,
The step of guiding one of the stoppage of the worker's work and the change of the worker's responsibility to the worker is
When the work risk level is the medium risk level, guide the change of the worker's responsibility,
When the work risk level is the high risk level, to guide the worker to stop the work
How to manage worker safety on a construction site.
The method of claim 1,
The step of guiding one of the stoppage of the worker's work and the change of the worker's responsibility to the worker is
In a state where the temperature of the work site is less than the first threshold, the humidity of the work site is less than the second threshold, and the noise of the work environment is above the threshold level, the work level of the worker is the medium risk level or the In the case of a high-risk level, to guide the worker to change his/her job to a job performed in an area separated from the area where the noise is generated.
How to manage worker safety on a construction site.
The method of claim 1,
using the movement data of the operator received within a preset response time from the point in time at which the guidance is made, confirming whether the information of the operator is guidance; and
In accordance with the confirmation result, the step of guiding the worker's work risk level to surrounding workers located within a preset distance from the worker
Worker safety management method at the construction site further comprising a. delete

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