KR102133180B1 - Wearable devices for prevent suffocation - Google Patents

Abstract

The present invention relates to a wearable device which can detect environmental factors which may cause suffocation accidents in a closed work site by being worn by workers directly before and after work, outputs a measurement result to a linked worker terminal so that the worker can check a safety status of a work site and detects environmental factors causing suffocation accidents even during work to promptly guide the environmental factors to a terminal in a dangerous situation, thereby preventing suffocation accidents of workers.

Description

Wearable device to prevent suffocation {WEARABLE DEVICES FOR PREVENT SUFFOCATION}

According to the present invention, the environmental factors that can cause suffocation in a closed work place, worn directly by a worker, can be detected both before and after the work, and the measurement result is output to the terminal of the linked worker, thereby allowing the worker to determine the safety status of the work site. It can be grasped, and it detects environmental factors that cause suffocation during work, and guides them directly to the terminal in case of danger.

In general, the workplace is divided into outdoor and indoor, and the construction and manufacturing industries are performed by the workers at the indoor workplace. Among them, refer to Table 18 of the Rules on Occupational Safety and Health Standards. And places where there is a risk of accidents due to explosion, etc. are defined as closed spaces.

Specifically, when the oxygen concentration is less than 18% or more than 23.5%, when the carbon dioxide concentration is more than 1.5%, the interior of the place where the hydrogen sulfide concentration is more than 10 ppm is defined as a closed space. There is a risk that it will lead to suffocation.

Therefore, in order to prevent this, a sensor is installed to detect environmental factors such as harmful gases that can cause safety accidents in the working environment. For this reason, there is a concern that if a harmful gas is first affected by a worker, a negative effect is first exerted on the worker before detection and notification by a sensor are generated.

In addition, there is a problem in that it is difficult to prevent environmental accidents, such as harmful spaces, because it is difficult to detect environmental factors such as harmful gases, even in a narrow space without such a sensor or a worker's working environment.

In particular, in the case of suffocation, it is necessary to detect the workers' surrounding environment in real time, so it is difficult to solve these problems with the existing installation type harmful gas detection sensor, and there is a need for a method to improve it.

On the other hand, as a prior document for the safety of workers working in confined spaces, Korean Patent Registration No. 10-1710175 describes a system for securing a closed space safety.

The prior literature can quickly rescue a worker in danger by monitoring the biometric information of the worker working in an enclosed space in real time. In addition, according to an embodiment of the present invention, the present invention relates to a system for securing an enclosed space that can efficiently inform the outside using a personal wearable terminal such as a smart watch.

However, since the prior literature judges the dangerous situation based on the biosignal of the worker, even if there is concern about suffocation and concern in the enclosed space before work, the worker cannot grasp it and receives abnormal biosignals from workers already affected by harmful gases. It determines the situation where the safety of workers is threatened.

In addition, it is difficult for workers to realize that they are affected by harmful gases until they are aware of it themselves, and even if safety cooperation voices or phrases are output through the repeater, workers can confirm this for reasons such as enthusiasm in work or noise at the workplace. In addition, there is a problem in that it is difficult for the worker to judge the situation as the repeater moves away from the worker.

Republic of Korea Registered Patent Publication No. 10-1710175 (2017.02.24.

The present invention has been devised to solve the above problems, and the present invention detects environmental factors that may cause choking in the working environment, both before and after work, by being worn directly by the worker, and as a linked worker's terminal. It is an object of the present invention to provide a wearable device for preventing a suffocation accident by preventing a suffocation accident by a worker.

In addition, workers can be guided to the surrounding work environment through the terminal, and furthermore, information about the surrounding work environment is also transmitted to the control server, so that workers can evacuate from the work environment in case of danger, and the manager It is an object of the present invention to provide a wearable device for preventing a suffocation accident that can prevent a safety accident by controlling a risk factor.

As a means for achieving the object of the present invention, a wearable device that detects environmental factors causing suffocation and is capable of outputting a normal or dangerous notification to workers in connection with a terminal, comprising: a sensor unit for sensing environmental factors; and A determination unit that compares measurement data of environmental factors detected by the sensor unit with pre-stored normal range concentration data to determine a normal or dangerous state; and a communication unit that outputs a normal or dangerous state determined by the determination unit in conjunction with the terminal to the terminal ; And a sensor unit, a judgment unit, and a communication unit, and configured as a device that can be worn by workers, wherein the sensor unit corresponds to each gas according to the type of gas causing the worker's suffocation. It includes a sensor module that applies a dedicated sensor that detects only gas, and includes a plurality of sensor modules to detect each different gas, including oxygen, carbon monoxide, and hydrogen sulfide, which are gases that cause choking. Is provided in the form of an application to guide the worker by outputting a guide to the normal or dangerous state received through the communication unit, the interlocking or not checking area to enable the worker to check the interlocking status between the terminal and the communication unit; and An environment information guide area for guiding the type of the environmental factor; and a notification area for outputting a'normal' notification or a'danger' notification according to the type of the environmental factor gas at the bottom of the environmental correction guide region; And it provides a wearable device for preventing suffocation, characterized in that a guide area for guiding information such as work precautions, work information, and work notices is formed so that display information is provided.

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In addition, the device is further configured with a power supply unit that provides power to the built-in sensor unit, the determination unit, and the communication unit, and controls driving.

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In addition, the determination unit compares the database in which the normal concentration range data of environmental factors sensed by the sensor unit is stored, and the comparison determination module for comparing the normal concentration range data and the measurement data measured by the sensor unit to determine whether it is in a normal or dangerous state. And a command generation module that generates notification command data that outputs a'normal' notification or outputs a'danger' notification through a value determined by the comparison determination module, and the notification command data is transmitted to the terminal through the communication unit. And guided.

In addition, the communication unit is interlocked with the terminal using Bluetooth communication.

In addition, the terminal is connected to a control server that manages the working environment, and data on normal or dangerous conditions received by the terminal is transmitted to the control server so that the manager can be guided along with the worker's surrounding work environment.

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The wearable device for preventing suffocation according to the present invention is not disturbed during work by being worn directly by workers, and detects environmental factors that can cause suffocation in the work environment both before and after work and guides it to the linked worker's terminal. It has a remarkable effect to prevent workers' suffocation.

In addition, the present invention allows the worker to be guided to the surrounding work environment through the terminal, and furthermore, by connecting the terminal and the control server and transmitting information about the surrounding work environment to the control server, the worker evacuates from the work environment in case of danger. The manager can control the risk factors in the working environment and have a remarkable effect to prevent safety accidents.

1 is a block diagram showing a schematic configuration of a wearable device for preventing suffocation according to the present invention.
2 is a block diagram showing a specific configuration of a wearable device for preventing suffocation according to the present invention.
3 is a flowchart illustrating a determination method for determining a normal/dangerous state of a wearable device for preventing suffocation according to the present invention.
4 and 4a show a schematic configuration and embodiment of the terminal of the present invention.
5 schematically shows a communication method of a wearable device for preventing suffocation according to the present invention.

Hereinafter, a drawing will be described in detail so that a person skilled in the art can easily implement a wearable device for preventing suffocation.

1 is a block diagram showing a schematic configuration of a wearable device for preventing suffocation according to the present invention, and FIG. 2 is a block diagram showing a specific configuration of a wearable device for preventing suffocation according to the present invention, FIG. 3 Is a flow chart showing a determination method for determining a normal/dangerous state of a wearable device for preventing suffocation according to the present invention, and FIGS. 4 and 4a show a schematic configuration and an embodiment of a terminal of the present invention, and FIG. 5 Shows schematically a communication method of a wearable device for preventing suffocation according to the present invention.

According to the present invention, the environmental factors that can cause suffocation in a closed work place, worn directly by a worker, can be detected both before and after the work, and the measurement result is output to a linked worker's terminal so that the worker can determine the safety status of the work site. It can be grasped, and it detects environmental factors during work and guides them immediately in case of danger.

Prior to explanation,'oxygen concentration' of less than 18% or more than 23.5% and'carbon gas concentration' of more than 1.5% concentration and'hydrogen sulfide concentration of more than 10 ppm' are environmental factors that can cause suffocation in workers at work sites. Exists. Therefore, below, it is stated in advance that the environmental factors include oxygen, carbon monoxide and hydrogen sulfide, which are harmful gases that can cause choking.

The wearable device according to the present invention comprises a device 10 worn directly by workers, a sensor unit 20 for detecting environmental factors, a determination unit 30, and a communication unit 40, which are interlocked with the device 10 It includes a terminal (50).

The device 10 is a wearable device that incorporates a sensor unit 20, a determination unit 30, and a communication unit 40, and is worn directly by workers.

The device 10 is provided with a separate garment or equipment additionally to use the work vest or a work cap that the worker must wear in the working environment, rather than using it, so as not to interfere with the work activity of the worker.

However, the present invention is an invention for preventing a suffocation accident of a worker, and it is most preferable to use a work vest that can be located around the mouth or nose of the worker's respiratory tract.

In addition, the device 10 includes a power supply unit 11 including a battery and a switch, so that a worker is equipped with a sensor built into the device 10 when worn through a switch (not shown in the drawing) provided in the device 10 when worn. Power to turn on/off the power so as to control the driving of the unit 20, the determination unit 30, and the communication unit 40, and power to drive the components built in the device 10 through the built-in battery. Can provide

Therefore, through such a power unit 11, the worker can turn on the power only when the device 10 is worn so that the sensor unit 20, the determination unit 30, and the communication unit 40 do not perform unnecessary operations.

The sensor unit 20 is built in the device 10 or is provided to be exposed to the outside serves to sense the environmental factors that can cause a suffocation in the worker's surrounding work environment.

The sensor unit 20 includes a first sensor module 21, a second sensor module 22, and a third sensor module 23. These first to third sensor modules 21, 22, and 23 are It will detect oxygen, carbon monoxide and hydrogen sulfide, respectively. Accordingly, the first to third sensor modules 21, 22, and 23 respectively detect the concentration of the gas to be detected.

At this time, the type of the gas detected by the sensor unit 20 is not limited to oxygen, carbon monoxide, and hydrogen sulfide, and in addition to an n-th sensor module capable of detecting harmful gases that may be generated in each working environment, is further added. It can be provided. For example, in the case of a closed working environment such as a freezer, an additional sensor module capable of detecting nitrogen may be provided because nitrogen is generated due to vaporization of liquid nitrogen, which is a concern for workers' suffocation.
The sensor module applies a dedicated sensor that detects only one type of gas for each gas in response to each gas according to the type of gas causing the suffocation of workers.

Accordingly, the sensors included in the sensor unit 20 individually detect the concentrations of oxygen, hydrogen sulfide, and carbon monoxide, which are environmental factors that can cause workers to suffocate, and the wearable device 10 through these sensor units 20 When a predetermined concentration threshold value of the environmental factor is exceeded, a notification may be sent to a terminal linked to the device 10. This will be explained in detail below.

The determination unit 30 has the gas concentration measurement data detected by the sensor unit 20, compares it with the pre-stored normal concentration range data, and makes a notification command so that a notification about the related content can be output to the terminal 50 It serves to transfer data to the communication unit 40.

The determination unit 30 is composed of a database 31, a comparison determination module 32 and a command generation module 33.

First, the database 31 stores normal concentration range data of environmental factors detected by the sensor unit 20, and compares the normal concentration range stored in the database 31 with the measured concentration measured by the sensor unit 20. Then, it is determined that the comparison determination module 32 is in a normal state or a dangerous state.

The comparison determination module 32 includes the normal concentration range data of environmental factors pre-stored in the database 31 and the concentration values of environmental factors measured by the plurality of sensor modules 21, 22, and 23 included in the sensor unit 20, respectively. Compare and output the corresponding notification command data from the command generation module 33 according to the result.

The command generation module 33 generates notification command data to be transmitted to the communication unit 40 and the interlocked terminal 50, etc., and is an environmental factor of the worker's surrounding environment measured by the sensor unit 20 in the comparison determination module 32 The concentration value and the normal range concentration data previously stored in the database 31 are compared, and corresponding notification command data is output according to the result.

At this time, the notification command data is divided into normal notification command data and dangerous notification command data, and the normal notification command data is measured by comparing the measurement data detected by the sensor unit 20 with the normal concentration range data previously stored in the database 31. When the data value corresponds to the normal concentration range data, since the incidence rate of workers' suffocation due to the gas is very low, the normal notification command data that outputs a'normal' notification to the interlocked terminal 50 is output, and the normal concentration range data When the measured concentration value is out of range, the danger notification command data is output.

The determination method for determining the normal/dangerous state performed by the determination unit 30 will be described with reference to FIG. 3.

First, when the device 10 starts to operate through the power supply unit 11 in the device 10, the sensor unit 20 is driven so that the sensor unit 20 monitors the concentration of oxygen, hydrogen sulfide, and carbon monoxide in the workers' surrounding environment. The first to third sensor modules 21, 22, and 23, which can detect each environmental factor so as to be detected, start to operate.

Thereafter, when the comparison determination module 32 compares the environmental factor concentration value detected and measured through the sensor unit 20 with the normal range concentration data previously stored in the database 31, the measured environmental factor concentration value deviates from each other. Hazard notification command data such as oxygen concentration danger and'hazardous gas warning' notifications are output, and when the normal range concentration data is applicable, normal notification command data capable of guiding'normal' notification is output.

The notification command data generated through the determination unit 30 is transmitted to the terminal 50 linked through the communication unit 40.

The communication unit 40 serves to receive the notification command data received from the determination unit 30 to the interlocked terminal 50, and the communication unit 40 includes a reception module 41 and a transmission module 42. .

First, the receiving module 41 receives the notification command data transmitted from the determination unit 30, and is connected to the determination unit 30 to receive the notification command data.

In addition, the calling module 42 transmits the notification command data to the terminal 50 connected to the communication unit 40, and the calling module 42 is interlocked with the worker's terminal 50 using Bluetooth communication. As possible. At this time, it is preferable to use the Bluetooth module capable of the communication module 42, but is not limited thereto.

The terminal 50 is connected to the communication unit 40 and outputs a normal notification or a danger notification according to the environmental factors of the worker's surroundings to deliver information about the working environment to the workers, and evacuates or prevents suffocation. It serves to convey information so that action can be taken.

At this time, the terminal 50 mainly uses a smartphone, and the terminal 50 can download an application that is interoperable and compatible with the communication unit 40 and check information about the surrounding work environment through the application.

This displays information about the surrounding work environment on the terminal 50, as shown in FIG. 4, in the upper part of the screen, the interlocking confirmation area 51 that allows the worker to check whether the terminal 50 is interlocked with the communication unit 40 or not. This is arranged, and at the bottom of the screen, an environment information guiding area 52 capable of outputting and guiding notification command data received from the communication unit 40 to workers is disposed.

The environmental information guide area 52 is classified according to the type of environmental factors that can be detected by the sensor unit 20, and accordingly, displays the types of environmental factors, respectively, and the notification area 52a in the environmental information guide area 52 ) Is provided, and the notification area 52a outputs a notification of'normal' or'danger' to the worker according to the type of the gas which is an environmental factor displayed on the notification area 52a.

For example, as shown in FIG. 4A, the concentration of oxygen, hydrogen sulfide, and carbon monoxide detected by the sensor unit 20 determines whether the concentration unit 30 is a normal concentration range or a concentration range that can cause suffocation, and thus the oxygen concentration and hydrogen sulfide. When the concentration is in the normal concentration range, a'normal' notification is displayed in the corresponding notification area 52a, and a'danger' notification is displayed when the carbon monoxide concentration is not within the normal concentration range.

At this time, if a'risk' notification is output even for one environmental factor, the'risk' notification is displayed in the notification area 52a, and the application 50 is installed using sound, vibration, flash, etc. It is also possible to quickly and powerfully deliver'risk' notifications to workers.
In addition, it further includes a guidance area 53 for guiding workers with information such as work precautions, work information, and work announcements.

In addition, as shown in FIG. 5, the device 10 may be linked with the terminal 50 to guide the normal/danger notification of the worker's surrounding environment through the terminal 50, and such a terminal 50 is a worker's working environment. It is also connected to a separate control server 60 that manages data, so that not only the worker but also the manager can grasp the working environment of the worker by sharing the notification command data.

Therefore, when the working environment is in a dangerous state of concern about suffocation, workers can escape from the working environment by notification through the terminal 50, and the control server 60 manages related environmental factors to bring the working environment to a normal state. Can be maintained.

For example, the control server 60 can switch the valve of the hazardous gas storage tank provided in the working environment to a locked state or notify the safety management center such as 119 through the control server 60 in case of danger. You can prevent accidents.

On the other hand, the above description using Figs. 1 to 5 describes only the main matters of the present invention, and as various designs are possible within the technical scope, the present invention is not limited to the configurations of Figs. Is self-explanatory.

10: device 11: power supply
20: sensor unit 21: first sensor module
22: second sensor module 23: third sensor module
30: judgment unit 31: database
32: Comparison judgment module 33: Command generation module
40: communication unit 41: receiving module
42: calling module 50: terminal
51: interlocking confirmation area 52: environmental information guide area
52a: Notification area 53: Information area
60: control server

Claims (9)

In a wearable device that detects environmental factors that cause suffocation and can output a normal or dangerous notification to workers in connection with a terminal,
Sensor unit for sensing the environmental factors; and
A determination unit that compares measurement data of environmental factors detected by the sensor unit with pre-stored normal range concentration data to determine a normal or dangerous state; and
A communication unit interlocked with the terminal to output a normal or dangerous state determined by the determination unit to the terminal; And
The sensor unit, the determination unit and the communication unit is built in, consisting of a device that can be worn by workers,
The sensor unit includes a sensor module that applies a dedicated sensor that detects only one type of gas for each gas in response to each gas according to the type of gas causing the suffocation of workers, and oxygen, the gas that causes the suffocation, Equipped with a plurality of sensor modules to detect each different gas, including carbon monoxide and hydrogen sulfide,
The terminal is provided in the form of an application to guide the worker by outputting the guidance on the normal or dangerous state received through the communication unit, but the interlocking status checking area that allows the worker to check the interlocking status between the terminal and the communication unit ;Wow
Environmental information guide area for guiding the type of the environmental factors; And
A notification area in which a'normal' notification or a'danger' notification according to the type of the environmental factor gas is output at the bottom of the environmental information guide region; And
A wearable device for preventing suffocation, characterized in that a guide area is provided to guide information such as precautions for work, work information, and work notices so that display information is provided.
According to claim 1,
A wearable device for preventing suffocation, wherein the device includes a built-in power supply unit that provides power to the sensor unit, the determination unit, and the communication unit, and controls driving.
delete delete According to claim 1,
The determination unit,
A database storing normal concentration range data of environmental factors sensed by the sensor unit;
A comparison determination module that compares the normal concentration range data with the measurement data measured by the sensor unit to determine whether it is a normal or dangerous state; And
It consists of a command generation module for generating notification command data for outputting a'normal' notification or outputting a'danger' notification through a value determined by the comparison determination module.
The wearable device for preventing suffocation, wherein the notification command data is delivered and guided to the terminal through the communication unit.
According to claim 1,
The communication unit is a wearable device for preventing suffocation, characterized in that the terminal is interlocked using Bluetooth (Bluetooth) communication.
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The terminal is connected to a control server that manages the working environment;
A wearable device for preventing suffocation, characterized in that data on normal or dangerous conditions received by the terminal is transmitted to the control server so that an administrator can be guided along with the worker's surrounding work environment.

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