KR20240019882A - Work safety management system with smart welding mask and control method thereof - Google Patents

Abstract

The present invention is a work safety management system that includes a smart welding mask, and in more detail, a mask body worn to protect the head and face of the worker, and a mask body provided on one side of the mask body to measure oxygen concentration near the mask body. It includes an oxygen sensor, a control unit provided inside the mask body and receiving the measured value of the oxygen sensor, and an LED unit provided on one side of the mask body and outputting a visual signal according to a control signal from the control unit. And the control unit is characterized in that the visual signal by the LED unit varies according to the measured value of the oxygen sensor.

Description

Work safety management system with smart welding mask and control method thereof}

The present invention is a work safety management system that includes a smart welding mask. More specifically, the present invention is a work safety management system that allows workers to directly recognize risks in a closed work space while at the same time allowing managers to monitor remotely and quickly respond to dangerous situations to ensure worker safety. It is about a work safety management system that includes a smart welding mask that allows

In general, in the case of various welding operations, not only strong harmful light is generated, but also various risks occur, such as the base metal being splashed onto the face due to high instantaneous heat and resistance. Therefore, it is a well-known fact that welding masks are used as equipment to protect the eyes and faces of workers from the above risks during welding. For example, Republic of Korea Patent Publication No. 10-1008187 (January 14, 2011) discloses a welding mask having a functional gasket.

However, in the case of the prior art as described above, there is a problem in that the worker cannot determine the air quality in the closed work space, which may pose a risk to the worker's life, especially when the oxygen concentration rapidly decreases. In other words, it is necessary to develop a work safety management system that allows workers in an enclosed workspace to directly judge and respond when a dangerous situation occurs, and allows remote managers to monitor the workspace and take quick action. This is the situation.

Republic of Korea Patent Publication No. 10-1008187 (2011.01.14.)

The present invention was developed to solve the problems of the prior art as described above. In a closed work space, workers can directly recognize risks such as low oxygen concentration, and at the same time, managers can remotely monitor and quickly respond to dangerous situations. The purpose is to provide a work safety management system that includes a smart welding mask that ensures worker safety.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention that are not mentioned herein can be explained to those skilled in the art from the description below. You will be able to understand it clearly.

In the work safety management system including a smart welding mask according to a preferred embodiment of the present invention, the mask body is worn to protect the head and face of the worker, and is provided on one side of the mask body, near the mask body. An oxygen sensor that measures oxygen concentration, a control unit provided inside the mask body and receiving the measured value of the oxygen sensor, and a control unit provided on one side of the mask body and outputting a visual signal according to a control signal from the control unit. and an LED unit, wherein the control unit allows a visual signal by the LED unit to vary depending on the measured value of the oxygen sensor.

In addition, the oxygen sensor according to a preferred embodiment of the present invention is characterized in that it is provided in plural numbers spaced apart from each other.

In addition, the control unit according to a preferred embodiment of the present invention controls the LED unit to output a visual signal in green when the measured value of the oxygen sensor is within a preset normal range, and the measured value of the oxygen sensor is set to the normal range. If it is within the set caution range, the LED is controlled to output a visual signal in yellow, and if the measured value of the oxygen sensor is within the preset evacuation range, the LED is controlled to output a visual signal in red, so that the worker It is characterized by allowing the oxygen concentration near the mask body to be easily recognized.

In addition, the work safety management system including a smart welding mask according to a preferred embodiment of the present invention is provided on one side of the mask body and further includes a GPS sensor that senses location information of the mask body. do.

In addition, in the control method of a work safety management system including a smart welding mask, a measuring step in which the oxygen sensor measures the oxygen concentration near the mask body, and after the measuring step, the control unit measures the measured value of the oxygen sensor. A determination step of determining whether the measured value of the oxygen sensor is less than a preset value, and an operation step of outputting a visual signal when the measured value of the oxygen sensor is less than the preset value, and the control unit is configured to: It is characterized in that the visual signal by the LED unit is varied according to the measured value of the oxygen sensor.

As a means of solving the above problem, the work safety management system including the smart welding mask of the present invention allows the worker to recognize a dangerous situation through the LED when the oxygen concentration measurement value of the oxygen sensor is less than the preset value and take action such as evacuation. It is effective in providing a work safety management system that includes a smart welding mask that encourages taking action and normalizes oxygen concentration through external air by ventilating the air in the work area through an air circulator.

In addition, the work safety management system including the smart welding mask of the present invention changes the luminous color of the LED part depending on the oxygen concentration measurement value of the oxygen sensor, so that workers can easily recognize the oxygen concentration and risk in the vicinity. By doing so, there is an advantage in preventing safety accidents such as suffocation. More specifically, the control unit controls the LED to emit green when the measured value of the oxygen sensor is within the preset normal range, and controls the LED to emit yellow when the measured value of the oxygen sensor is within the preset caution range, If the measured value of the oxygen sensor is within the preset evacuation range, the LED is controlled to emit red light, allowing the worker to easily recognize the oxygen concentration near the mask body.

In addition, the work safety management system including the smart welding mask of the present invention, when two or more workers are working and the measured value of any one of the two oxygen sensors is less than a preset value, the work safety management system between the two control units There is an advantage in that a danger signal is transmitted to both mask bodies through wireless communication, allowing multiple workers to recognize a dangerous situation and evacuate.

In addition, the work safety management system including the smart welding mask of the present invention, when the measured value of any one of the oxygen concentration meter or a plurality of oxygen sensors is within the preset value and preset evacuation range, after transmitting a danger signal, the second GPS Changes in the position of the mask body are confirmed through the sensor, and if the position of the mask main body is fixed even after the danger signal is propagated, or the position of the mask main body is fixed even after the elapse of a preset time, an accident signal is sent to an external organization such as the fire department. There is an advantage in being able to respond by transmitting.

The effects of the present invention are not limited to the effects mentioned above, and the effects of the present invention not mentioned herein will be clearly understood by those skilled in the art from the description below. .

Figure 1 shows the configuration of the mask body of a work safety management system including a smart welding mask according to an embodiment of the present invention, and is a diagram showing the oxygen sensor, alarm, and LED connected to the control unit.
Figure 2 is a conceptual diagram showing the configuration of a work safety management system including a smart welding mask according to an embodiment of the present invention.
Figure 3 shows the configuration of the mask body of the work safety management system including a smart welding mask according to an embodiment of the present invention, and is a diagram showing the oxygen capsule, electronic valve, and alarm connected to the control unit.
Figure 4 is a diagram showing the control configuration of a work safety management system including a smart welding mask according to an embodiment of the present invention.
Figure 5 is an exemplary diagram showing communication between a plurality of mask bodies of a work safety management system including a smart welding mask according to an embodiment of the present invention.
Figure 6 (a) is a diagram showing a control flowchart of a work safety management system including a smart welding mask according to an embodiment of the present invention.
Figure 6 (b) is a diagram showing a control flowchart of a work safety management system including a smart welding mask according to another embodiment of the present invention.
Figure 7 is a diagram showing a control flowchart of a work safety management system including a smart welding mask according to another embodiment of the present invention.
Figure 8 is a diagram showing a control flowchart of a work safety management system including a smart welding mask according to another embodiment of the present invention.

The terms used in this specification will be briefly explained, and the present invention will be described in detail.

The terms used in the present invention are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

When a part in the entire specification is said to “include” a certain element, this means that it does not exclude other elements but may further include other elements, unless specifically stated to the contrary.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

Specific details, including the problem to be solved by the present invention, the means for solving the problem, and the effect of the invention, are included in the examples and drawings described below. The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

Hereinafter, the present invention will be described in more detail with reference to the attached drawings.

1 and 2, in the work safety management system including a smart welding mask according to a preferred embodiment of the present invention, an oxygen concentration meter 100 installed in a work area (W), and the work area (W) a mask body (200) worn to protect the worker's head and face, and an oxygen sensor (300) provided on one side of the mask body (200) to measure the oxygen concentration near the mask body (200). ) and a control unit 400 provided inside the mask body 200 and receiving the measured value of the oxygen sensor 300, and provided on one side of the mask body 200, the control unit 400 An LED unit 500 that outputs a visual signal according to a control signal, is provided at a remote location from the work area (W), and receives and stores the measured values of the oxygen concentration meter 100 and the oxygen sensor 300. It includes a management unit 600 and an air circulator 700 installed in the work area W and ventilating the air in the work area W according to a signal from the management unit 600, and the control unit 400 Controls the visual signal by the LED unit 500 to vary according to the measured value of the oxygen sensor 300.

First, the oxygen concentration meter 100 is prepared. The oxygen concentration meter 100 is installed on the inner wall of the work area (W) and serves to measure the oxygen concentration in the work area (W). In other words, the oxygen concentration meter 100 measures the oxygen concentration near the installation location within the work area W, and can be provided in any form as long as it can measure the oxygen concentration. For example, a plurality of oxygen concentration meters 100 may be arranged to be spaced apart by a preset interval within the work area W, and the management unit 600 may measure the oxygen concentration within the work area W in real time. send to The oxygen concentration meter 100 may be a conventional combined gas meter, a portable oxygen meter, or an installed oxygen meter.

Next, the mask body 200 is prepared. The mask body 200 is formed to cover the worker's head and face, protecting the worker's eyes and eyes from risks such as the base material being splashed onto the worker's face due to the momentary high heat and resistance generated during welding work. It serves to protect the face. At this time, the mask body 200 includes a protective glass 210 formed on one front side of the mask body so that the worker can see the work progress and the front through a glass window coated with a predetermined protective film. The protective glasses 210 also serve to protect the worker's eyes by blocking harmful light generated during welding work. Here, the mask body 200 and the protective glass 210 may be formed in the same shape as a conventional welding surface, and may be provided in any shape as long as they can protect the worker's head and face.

Next, the oxygen sensor 300 is provided. The oxygen sensor 300 is provided on the outer peripheral surface of the mask body 200, measures the oxygen concentration in the air near the mask body 200, and provides the measured value to the control unit 400 and the management unit 600. It plays a transmitting role. That is, the oxygen sensor 300 measures nearby oxygen concentration like the oxygen concentration meter 100, and compared to the oxygen concentration meter 100 installed on the inner wall of the work area (W), It may be a portable oxygen concentration meter installed on the outer peripheral surface of the mask body 200. For example, the oxygen sensor 300 may be provided in a form that is smaller in size and weight than the oxygen concentration meter 100, and may be provided in any form as long as it can measure the oxygen concentration near the mask body 200. It can be.

Next, the control unit 400 is provided. The control unit 400 is provided to be inserted into the inside of the mask body 200, and is connected to the oxygen sensor 300 through wired or wireless communication to receive and store the measured value of the oxygen sensor 300. do. In addition, the control unit 400 serves to control the LED unit 500 and the electronic valve 230 and alarm 240, which will be described later, based on the measured value of the oxygen sensor 300. For example, the control unit 400 includes a communication unit (not shown) capable of transmitting and receiving wireless signals to one or more external devices, typically using a Bluetooth chip, Wi-Fi chip, NFC chip, or wireless communication chip (LTE chip). It may include at least one of the following. The communication unit communicates with the external terminal 900 using a Bluetooth chip, which is a short-distance communication method, but as an example, it may also communicate with the terminal 900 using a long-distance communication method. Additionally, the control unit 400 may be formed of one or more built-in rechargeable batteries to provide power, or may include a power unit (not shown) capable of receiving external power by wire. Additionally, the control unit 400 is in the form of a mini computer and can be linked to a data server through a gateway.

Next, the LED unit 500 is prepared. The LED unit 500 is provided on the edge or side of the protective glass 210 and outputs a visual signal according to a control signal from the control unit 400, so that the worker can check the oxygen concentration near the mask body 200. Or, it allows visual recognition of dangerous situations, etc. For example, the LED unit 500 can be provided in any form as long as it can emit light in various colors through a combination of LED elements that emit primary colors of red, green, and blue, and can be provided in any form through conventional LED elements. It can be implemented with lighting colors and LED lights. Additionally, the visual signal of the LED unit 500 may be that the LED unit 500 emits light.

Next, the management unit 600 is provided. The management unit 600 is installed in a management room spaced from the work area W, and serves to receive and store the measured values of the oxygen concentration meter 100 and the oxygen sensor 300, respectively, and convert them into data. For example, the management unit 600 may be a computer or a smartphone, and may be a web hard drive (not shown) that receives and stores measured values of the oxygen sensor 300 and the oxygen concentration meter 100 in real time through a gateway. It may include a web server (not shown) that is linked with the web hard drive to receive and store measured values of the oxygen sensor 300 and the oxygen concentration meter 100 in real time.

At this time, the management unit 600 includes a monitoring unit 610 that displays the measured values of the oxygen concentration meter 100 and the measured values of the oxygen sensor 300, respectively. That is, the monitoring unit 610 serves to display measured values of the oxygen sensor 300 and the oxygen concentration meter 100 transmitted from the management unit 600, respectively. Through this, the manager of the management room can determine the oxygen concentration in the work area (W) in real time.

Next, the air circulator 700 is provided. The air circulator 700 is installed on one side of the work area (W) and serves to circulate air inside and outside the work area (W). For example, the air circulator 700 can be formed in any shape as long as it can ventilate the air inside the work area (W), and the air circulator 700 is an oxygen tank (not shown) that stores oxygen. In addition, a valve (not shown) that opens and closes the oxygen tank may be included, and the valve may be turned on and off according to a signal from the management unit 600 to supply oxygen stored in the oxygen tank.

In the work safety management system including the smart welding mask of the present invention configured as described above, when the measured value of the oxygen sensor 300 is less than a preset value, the control unit 400 causes the LED unit 500 to emit light. In control, the management unit 600 transmits an operation signal to the air circulator 700 so that the air circulator 700 ventilates the air in the work area (W). That is, when the oxygen concentration measurement value of the oxygen sensor 300 is less than a preset value, the worker is guided to recognize a dangerous situation and take action such as evacuation through the LED unit 500, and the air circulator is By ventilating the air in the work area (W) through 700, there is an advantage in that the oxygen concentration is normalized through external air.

In addition, the control unit 400 controls the LED unit 500 to emit green when the measured value of the oxygen sensor 300 is within a preset normal range, and the measured value of the oxygen sensor 300 is set to the standard range. If it is within the set caution range, the LED part 500 is controlled to emit yellow light, and if the measured value of the oxygen sensor 300 is within the preset evacuation range, the LED part 500 is controlled to emit red light. , so that the worker can easily recognize the oxygen concentration near the mask body 200. That is, by changing the light emission color of the LED part 500 according to the oxygen concentration measurement value of the oxygen sensor 300, the worker can easily recognize the oxygen concentration and risk in the vicinity, thereby preventing death, such as suffocation, etc. It has the advantage of preventing safety accidents.

Meanwhile, referring to FIG. 3, the oxygen sensor 300 is provided in plural numbers and spaced apart from each other. For example, at least two oxygen sensors 300 may be installed at a point corresponding to the worker's chin and a point corresponding to the top of the worker's head when the worker wears the mask body 200. . That is, there is an advantage of being able to check the oxygen concentration around the head of the worker wearing the mask body 200 without any gaps through the plurality of oxygen sensors 300.

In addition, the LED portion 500 is provided in plural numbers and spaced apart from each other. For example, at least two LED parts 500 are provided on both sides of the protective glasses 210, that is, near both eyes of the worker when the worker wears the mask body 200. In other words, the two LED parts 500 are provided on both sides of the protective glass 210, respectively. Therefore, when the oxygen concentration measurement value of the oxygen sensor 300 is less than the preset value, the control unit 400 causes the two LED units 500 to emit light, so that the worker can quickly recognize a dangerous situation through his or her eyes. make it possible

In addition, the mask body 200 includes an oxygen capsule 220 provided inside the mask body 200, storing oxygen therein, and having a flow port through which oxygen can flow, and the oxygen capsule 220 ), and further includes an electromagnetic valve 230 that opens and closes the flow port according to an opening and closing signal from the control unit 700. For example, a plurality of oxygen capsules 220 are provided inside the mask body 200 with oxygen stored therein, and when the electromagnetic valve 230 is opened, the stored oxygen is released into the mask body 200. ) flows into the mouth or nose of the worker wearing it. In addition, the control unit 400 controls the LED unit 500 to emit red light when the measured value of the oxygen sensor 300 is within a preset evacuation range, and at the same time, the electronic valve 230 operates at the flow port. By controlling to open, oxygen is supplied into the inside of the mask body 200. That is, the control unit 400 controls the electromagnetic valve 230 to secure time for the worker to prepare in the insufficient oxygen environment within the work area (W) to supply oxygen to the worker through the oxygen capsule 220. is to supply.

In addition, the mask body 200 is provided on the outer peripheral surface of the mask body 200 and further includes an alarm 240 that generates an alarm sound or vibration according to a signal from the control unit 700. For example, the alarm 240 may be provided on both sides of the worker's head when the worker wears the mask body 200. That is, the control unit 400 controls the LED unit 500 to emit red light when the measured value of the oxygen sensor 300 is within the preset evacuation range, and at the same time, the alarm 240 sounds an alarm or By controlling vibration to occur, a dangerous situation can be spread to the worker and people near the worker. Here, it is natural that the control unit 400 and the management unit 600 can transmit and receive signals with each other through wireless communication.

In addition, referring to FIG. 4, the work safety management system including the smart welding mask of the present invention may further include a GPS sensor that senses location information of the mask body 200 and the oxygen concentration meter 100. . More specifically, a first GPS sensor 810 provided on one side of the oxygen concentration meter 100 to sense the location information of the oxygen concentration meter 100 and transmit it to the management unit 600, and the mask body It further includes a second GPS sensor 820, which is provided on one side of the mask body 200 and senses the location information of the mask body 200 and transmits it to the management unit 600. Therefore, when the measurement value of any one of the oxygen concentration meter 100 or the plurality of oxygen sensors 300 is less than a preset value, the management unit 600 determines that the oxygen concentration in the work area W is less than the preset value. There is an advantage in being able to specify a branch.

For example, referring to FIG. 5, when the measured value of the oxygen concentration meter 100 is less than a preset value, the management unit 600 sends a danger signal to the terminal 900 of a worker near the oxygen concentration meter 100. Alternatively, you can send an evacuation text message, etc. In addition, the management unit 600 intensively operates the air circulator 700 near the oxygen concentration meter 100 whose measured value is less than a preset value, so that ventilation at the corresponding point can be intensively performed. 700) can be controlled. In other words, a plurality of the oxygen concentration meters 100 may be installed to be spaced apart within the work area W, and the management unit 600 determines whether the measured value among the plurality of oxygen concentration meters 100 is less than a preset value. By intensively operating the air circulator 700 near the oxygen concentration meter 100, ventilation can be controlled to be performed more efficiently.

Additionally, when the measured value of any one of the plurality of oxygen sensors 300 is less than a preset value, the control unit 400 may transmit a danger signal to another nearby control unit 400. More specifically, when the measured value of the oxygen sensor 300-1 of the mask main body 200-1 worn by the first worker in the work area W is less than a preset value, the mask main body 200-1 ) The control unit 400-1 provided inside the mask body 200-2, 200-3, and 200-4 worn by nearby second to fourth workers. 2, 400-3, and 400-4), each of the LED units 500, electromagnetic valves 230, and alarms 240 can be operated by transmitting a danger signal to each. In other words, while two or more workers are working, if the measured value of any one of the two oxygen sensors 300 is less than the preset value, 2 All of the mask bodies 200 are designed to transmit danger signals.

In addition, when the measurement value of any one of the oxygen concentration meter 100 or the plurality of oxygen sensors 300 is within a preset value and preset evacuation range, the management unit 600 detects the measured value through the second GPS sensor 820. If a change in the position of the mask main body 200 is confirmed and the position of the mask main body 200 is fixed even after the danger signal is propagated, or the position of the mask main body 200 is fixed even after the elapse of a preset time, the fire department Accident occurrence signals can be transmitted to external organizations such as

Hereinafter, the control method of the work safety management system including the smart welding mask of the present invention will be described in detail with reference to the attached drawings.

Referring to (a) of FIG. 6, a measurement step in which the oxygen sensor 300 measures the oxygen concentration near the mask body 200, and after the measurement step, the control unit 400 controls the oxygen sensor 300. ) A determination step of determining whether the measured value is less than a preset value, and after the determination step, if the measured value of the oxygen sensor 300 is less than the preset value, the LED unit 500 outputs a visual signal. It includes an operation step, and the control unit 400 causes the visual signal by the LED unit 500 to vary according to the measured value of the oxygen sensor 300.

That is, the oxygen sensor 300 measures the oxygen concentration near the mask body 100 and transmits the measured value to the control unit 400. At this time, the control unit 400 determines whether the measured value of the oxygen sensor 300 is less than a preset value. Here, when the control unit 400 determines that the measured value of the oxygen sensor 300 is greater than or equal to a preset value, the oxygen sensor 300 detects the oxygen concentration near the mask body 200 again after the preset time has elapsed. Control to measure. Additionally, when the control unit 400 determines that the measured value of the oxygen sensor 300 is less than a preset value, it controls the LED unit 500 to emit light. In other words, when the measured value of the oxygen sensor 300 is less than the preset value, the control unit 400 controls the LED unit 500 to emit light, so that the worker can check the oxygen concentration near the mask body 100. To be able to understand. In addition, when the control unit 400 determines that the measured value of the oxygen sensor 300 is less than a preset value, the electronic valve 230 is opened and the alarm 240 is controlled to generate a security signal. You can.

In addition, referring to (b) of FIG. 6, the measurement step includes a fixed measurement step in which the oxygen concentration meter 100 measures the oxygen concentration in the work area (W) and transmits it to the management unit 600. do. Additionally, the determination step includes a fixed determination step in which the management unit 600 determines whether the measured value of the oxygen concentration meter 100 is less than a preset value. And, the operation step includes a fixed operation step in which the air circulator 700 operates when the measured value of the oxygen concentration meter 100 is less than a preset value.

That is, the oxygen concentration meter 100 and the oxygen sensor 300 measure the oxygen concentration near the mask body 100 and within the work area W, respectively, and send the measured values to the control unit 400 and the management unit 600. ) are transmitted simultaneously. At this time, the control unit 400 and the management unit 600 determine whether the measured value of the oxygen sensor 300 and the measured value of the oxygen concentration meter 100 are less than a preset value. Here, when the control unit 400 and the management unit 600 determine that the measured values of the oxygen sensor 300 and the oxygen concentration meter 100 are greater than or equal to a preset value, the oxygen sensor 300 is activated again after a preset time has elapsed. And the oxygen concentration meter 100 is controlled to measure the oxygen concentration near the mask body 200 and within the work area W. In addition, when the control unit 400 and the management unit 600 determine that the measured values of the oxygen sensor 300 and the oxygen concentration meter 100 are less than a preset value, the LED unit 500 is controlled to emit light, The air circulator 700 is controlled to operate. In other words, when the measured value of the oxygen sensor 300 is less than the preset value, the control unit 400 controls the LED unit 500 to emit light, and the management unit 600 controls the air circulator 700 to operate. An operating signal is transmitted to the air circulator 700 to ventilate the air in the work area (W). That is, when the oxygen concentration measurement value of the oxygen sensor 300 is less than a preset value, the worker is guided to recognize a dangerous situation and take action such as evacuation through the LED unit 500, and the air circulator is By ventilating the air in the work area (W) through 700, there is an advantage in that the oxygen concentration is normalized through external air.

In addition, referring to FIG. 7, the determination step includes a green light emission step in which the LED part 500 emits green light when the measured value of the oxygen sensor 300 is within a preset normal range, and the oxygen sensor 300 emits green light. If the measured value of 300 is within a preset caution range, a yellow light emission stage in which the LED part 500 emits yellow light, and if the measured value of the oxygen sensor 300 is within a preset evacuation range, the LED part 500 emits yellow light. A red light emission step of causing the unit 500 to emit red light may be further included.

First, when the worker wears the mask body 200, power is supplied to the control unit 400 to be turned on. At this time, inside the mask body 200 is a battery (not shown) that supplies power to the control unit 400, LED unit 500, alarm 240, electronic valve 230, and oxygen sensor 300. may be provided, and the control unit 400 may be turned on and off by the operator through a switch or the like. In addition, a proximity sensor (not shown) may be provided on one side of the mask body 200, and through the proximity sensor, the control unit 400 determines whether the mask body 200 is worn on the worker's head. can also be determined automatically. Thereafter, when the oxygen sensor 300 measures the oxygen concentration near the mask body 200 and transmits the measured value to the control unit 400, the control unit 400 determines the measured value of the oxygen sensor 300. Determine whether it is within the preset normal range. At this time, when the control unit 400 determines that the measured value of the oxygen sensor 300 is within a preset normal range, the LED unit 500 is controlled to emit green light. In addition, when the control unit 400 determines that the measured value of the oxygen sensor 300 is outside the preset normal range, the control unit 400 determines that the measured value of the oxygen sensor 300 is within the preset caution range. Determine awareness. At this time, when the control unit 400 determines that the measured value of the oxygen sensor 300 is within a preset caution range, the LED unit 500 is controlled to emit yellow light. In addition, when the control unit 400 determines that the measured value of the oxygen sensor 300 is outside the preset caution range, the control unit 400 determines that the measured value of the oxygen sensor 300 is within the preset evacuation range. Determine awareness. At this time, when the control unit 400 determines that the measured value of the oxygen sensor 300 is within the preset evacuation range, the LED unit 500 is controlled to emit red light. And, when the control unit 400 determines that the measured value of the oxygen sensor 300 is outside the preset evacuation range, it transmits an error signal of the control unit 400 to the management unit 600, and the control unit ( 400), perform subsequent actions such as rebooting or repairing the device. That is, by changing the emission color of the LED part 500 differently according to the oxygen concentration measurement value of the oxygen sensor 300, the worker can easily recognize the oxygen concentration and risk in the vicinity, thereby preventing death from suffocation, etc. It has the advantage of preventing safety accidents.

Additionally, referring to FIG. 8, when the control unit 400 determines that the measured value of the oxygen sensor 300 is within the preset evacuation range, the control unit 400 causes the LED unit 500 to emit red light. Control is performed so that the second GPS sensor 820 senses the position of the mask body 200 and transmits it to the management unit 600. At this time, the management unit 600 determines whether the position of the mask body 200 is fixed for a preset time. Here, when the management unit 600 determines that the position of the mask body 200 is fixed for a preset time, it transmits an accident occurrence signal to an external organization.

As a result, when the oxygen concentration measurement value of the oxygen sensor 300 is less than the preset value, the worker is guided to recognize a dangerous situation and take action such as evacuation through the LED unit 500, and the air By ventilating the air in the work area (W) through the circulator 700, a safe working environment can be created by normalizing the oxygen concentration through the outside air, and when there is no movement of the worker in a dangerous situation, the outside air It has the advantage of being able to quickly transmit an accident signal to the organization.

As such, a person skilled in the art will understand that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical idea or essential features of the present invention.

Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims described later rather than the detailed description above, and the meaning and scope of the claims and their All changes or modified forms derived from the equivalent concept should be construed as falling within the scope of the present invention.

100: Oxygen concentration meter
200: Mask body
210: protective glasses
220: Oxygen capsule
230: Electronic valve
240: alarm
300: Oxygen sensor
400: control unit
500: LED
600: Management Department
610: Monitoring unit
700: Air circulator
810: 1st GPS sensor
820: 2nd GPS sensor
900: terminal
W: work area

Claims (5)

The main body of the mask worn to protect the worker's head and face;
An oxygen sensor provided on one side of the mask body to measure oxygen concentration near the mask body;
a control unit provided inside the mask body and receiving the measured value of the oxygen sensor; and
An LED unit provided on one side of the mask body and outputting a visual signal according to a control signal from the control unit,
The control unit is a work safety management system including a smart welding mask, characterized in that the visual signal by the LED unit varies according to the measured value of the oxygen sensor. According to paragraph 1,
A work safety management system including a smart welding mask, wherein the oxygen sensor is provided in plural numbers and spaced apart from each other. According to paragraph 1,
The control unit,
If the measured value of the oxygen sensor is within a preset normal range, the LED is controlled to output a visual signal in green,
If the measured value of the oxygen sensor is within a preset caution range, the LED is controlled to output a visual signal in yellow,
When the measured value of the oxygen sensor is within the preset evacuation range, the LED is controlled to output a visual signal in red,
A work safety management system including a smart welding mask, characterized in that the worker can easily recognize the oxygen concentration near the mask body. According to paragraph 1,
A work safety management system including a smart welding mask, further comprising a GPS sensor provided on one side of the mask body and sensing location information of the mask body. In the control method of the work safety management system including the smart welding mask of claim 1,
A measuring step in which the oxygen sensor measures oxygen concentration near the mask body;
After the measurement step, a determination step in which the control unit determines whether the measured value of the oxygen sensor is less than a preset value; and
After the determination step, if the measured value of the oxygen sensor is less than a preset value, an operation step of outputting a visual signal from the LED unit,
The control unit is a control method of a work safety management system including a smart welding mask, characterized in that the visual signal by the LED unit varies according to the measured value of the oxygen sensor.