KR102272487B1 - Gas environment monitoring system and gas environment monitoring method - Google Patents

Abstract

An embodiment of the present invention provides a gas environment monitoring system for monitoring a gas safety state of an environment in which an operator is located. The gas environment monitoring system includes: a first gas sensor that is mounted on an object worn by the worker or the body of the worker so as to be located near the floor of the environment to sense gas and transmit a first gas sensing signal; a second gas sensor mounted on an object worn by the worker or a body of the worker to be positioned higher than the first gas sensor to sense gas and transmit a second gas sensing signal; And based on the gas environment work information including the position information of the first gas sensor and the second gas sensor, the first gas sensing signal, and the second gas sensing signal, safety work information including determining whether the operator is safe and a management server that generates and informs the worker of the safety work information.

Description

GAS ENVIRONMENT MONITORING SYSTEM AND GAS ENVIRONMENT MONITORING METHOD

The present invention relates to a gas environment monitoring system and method, and more particularly, to a gas environment monitoring system and method for monitoring a gas concentration according to a height in a gas environment, such as a workplace, and providing safety work information.

Currently, various accidents such as fire, explosion, suffocation, and poisoning due to gas leakage occur in various industrial sites such as shipbuilding, chemical, plant, construction, automobile, and semiconductor. Therefore, in order to prevent damage to life and property due to such unexpected accidents, it is very important to monitor the presence and concentration of harmful substances such as gases in the air at all times, and to promptly sense the occurrence of harmful gases to evacuate people immediately. Do.

In particular, it is difficult to trust that a plurality of gas sensors discretely arranged in a workplace, such as a plant, only detect gas leakage in the workplace. For example, even if one gas sensor transmits a detection signal, it is difficult to determine whether a true leak has been found or is caused by some kind of noise. Therefore, in the end, the reality is that it is dependent on human judgment.

However, in particular, when the workplace is an enclosed space, it is difficult to sense the occurrence of an accident, and even if the occurrence of an accident is sensed, there is a problem that a person has to move directly to transmit the occurrence of an accident to the outside due to the nature of the enclosed space.

Accordingly, there is a need for a system capable of increasing the reliability of gas sensing in the workplace and immediately alerting an emergency situation such as a gas leak or the state of an operator.

The technical problem to be achieved by the present invention relates to a gas environment monitoring system and method for monitoring a gas concentration according to a height in a gas environment to increase the reliability of gas sensing to provide safety operation information.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical problem, an embodiment of the present invention provides a gas environment monitoring system for monitoring the gas safety state of the environment in which the operator is located. The gas environment monitoring system includes: a first gas sensor that is mounted on an object worn by the worker or the body of the worker so as to be located near the floor of the environment to sense gas and transmit a first gas sensing signal; a second gas sensor mounted on an object worn by the worker or a body of the worker to be positioned higher than the first gas sensor to sense gas and transmit a second gas sensing signal; And based on the gas environment work information including the position information of the first gas sensor and the second gas sensor, the first gas sensing signal, and the second gas sensing signal, safety work information including determining whether the operator is safe and a management server that generates and informs the worker of the safety work information.

In an embodiment of the present invention, the gas environment monitoring system is installed on the mask worn by the worker, senses gas and the worker's breathing, and transmits a mask sensing signal including a third gas sensing signal and a biosignal. It may further include a mask sensor unit.

In an embodiment of the present invention, the gas environment monitoring system is carried by the operator, and receives and processes the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal. It may further include a; worker terminal for transmitting to the management server.

In an embodiment of the present invention, the first gas sensor is installed on a shoe worn by the worker, the second gas sensor is installed on a helmet worn by the worker, and the management server includes the first gas The safety work information may be generated using the biosignal and the gas concentration according to the height generated from the sensing signal and the second gas sensing signal.

In an embodiment of the present invention, the safety work information includes: workable posture information including a sitting posture and a standing posture as a workable posture of the operator according to the gas concentration according to the height; and emergency state information determined from the biosignal.

In an embodiment of the present invention, the management server transmits the safety work information to the operator through the operator terminal, and the operator terminal is a sitting posture, standing posture or emergency on the display according to the transmitted safety work information. State information may be displayed visually or an audible signal may be generated.

In order to achieve the above technical object, another embodiment of the present invention provides a gas environment monitoring method for monitoring a gas safety state of an environment in which an operator is located. In the gas environment monitoring method, first, the management server acquires a first gas sensing signal from a first gas sensor that senses gas by being mounted on an object worn by a worker or a worker's body so that the management server is located near the floor of the environment. . The management server acquires a second gas sensing signal from a second gas sensor that is mounted on an object worn by the worker or a body of the worker so as to be positioned higher than the first gas sensor to sense gas. Next, the management server determines whether the worker is safe based on the gas environment work information including the position information of the first gas sensor and the second gas sensor, the first gas sensing signal, and the second gas sensing signal Create safety work information including Thereafter, the management server informs the operator of the safety work information.

In an embodiment of the present invention, the management server is installed on the mask worn by the worker, and from the mask sensor unit for sensing gas and sensing the worker's breathing, a third gas sensing signal and a biosignal as the gas environment work information A process of obtaining a may be further performed.

In an embodiment of the present invention, the management server is carried by the operator, and receives and processes the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal from the operator terminal. The first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal may be received.

In an embodiment of the present invention, the first gas sensor is installed on a shoe worn by the worker, the second gas sensor is installed on a helmet worn by the worker, and generating the safety work information In, the management server generates the safety work information by using the gas concentration according to the height and the biosignal from the first gas sensing signal and the second gas sensing signal, and the safety work information is the gas according to the height. As the workable posture of the operator according to the concentration, it may include workable posture information including a sitting posture and a standing posture.

According to an embodiment of the present invention, by sensing the gas concentration according to the height in space using the height of the operator's body, the gas sensing can be more reliably monitored and the operator can be quickly dealt with, such as an alarm.

In addition, it is possible to immediately respond to an emergency situation by directly sensing biometric information such as a worker's breathing.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a view showing a gas environment monitoring system according to an embodiment of the present invention.
2 is a block diagram of a gas environment monitoring system according to an embodiment of the present invention.
3 is a view for explaining a method of installing a gas sensor of a gas environment system according to an embodiment of the present invention.
4 is a view showing an example of the mask sensor unit installed in the gas mask.
5 is a view for explaining the operation of the gas environment monitoring system when the operator works in a sitting posture.
6 is a view for explaining the operation of the gas environment monitoring system when the operator works in a standing posture.
7 is a flowchart illustrating a gas environment monitoring method according to an embodiment of the present invention.
8 is a diagram illustrating a computing environment including an example computing device suitable for use in example embodiments.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

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

1 is a view showing a gas environment monitoring system according to an embodiment of the present invention. 2 is a block diagram of a gas environment monitoring system according to an embodiment of the present invention.

The gas environment monitoring system monitors the gas safety state of the environment where the worker is located, and through this, it is possible to provide safety work information to the worker. The gas environment monitoring system includes a first gas sensor 100 , a second gas sensor 200 , and a management server 700 .

The first gas sensor 100 may be mounted on an object worn by the worker or the body of the worker so as to be located in the environment where the worker is located, for example, near the floor of the workplace. The first gas sensor 100 may transmit a first gas sensing signal by sensing the gas when the gas leaks in the workplace.

The second gas sensor 200 may be mounted on an object worn by the worker or on the body of the worker so as to be positioned higher than the first gas sensor 100 . The second gas sensor 200 may transmit a second gas sensing signal by sensing the gas when the gas leaks in the workplace.

The gas sensor may mean a device that detects a specific component gas contained in a gas and converts it into an appropriate electric signal according to its concentration. Gas sensors are largely classified into electrochemical, catalytic, semiconductor, and photoionization gas sensors according to gas detection methods. The above-described gas sensor may be used as the first gas sensor 100 and the second gas sensor 200 .

The management server 700 may generate safety work information including determination of whether a worker is safe based on the gas environment work information. The gas environment work information may include position information of the first gas sensor 100 and the second gas sensor 200 , a first gas sensing signal, and a second gas sensing signal.

The management server 700 may inform the operator of safety work information, for example, emergency state information.

Of course, the first gas sensor 100 and the second gas sensor 200 and the management server 700 may directly transmit and receive signals, but the gas environment monitoring system is carried by the operator, and the first gas sensing signal, 2 It may further include a user terminal 600 for receiving and processing the gas sensing signal and the bio-signal and transmitting it to the management server 700 .

The user terminal 600 collects the first gas sensing signal, the second gas sensing signal, and the biosignal with the terminal communication unit 630 for transmitting and receiving signals such as the first gas sensing signal, the second gas sensing signal, and the biosignal. It may include a processing unit 610 for processing.

The user terminal 600 may be communicatively connected to the management server 700 through a network such as a local area network (LAN), a wide area network (WAN), a cellular network, or the Internet.

The gas environment monitoring system may include a repeater installed in the workplace to relay the transmission/reception of signals between the first gas sensor 100 and the second gas sensor 200 and the management server 700 .

The gas environment monitoring system may further include a mask sensor unit 300 . The worker may work while wearing a mask, and the mask sensor unit 300 may be installed on the mask. The mask sensor unit 300 may not only sense a gas, but also sense a biosignal such as a worker's breathing.

The mask sensor unit 300 may include a gas concentration check unit 310 , a respiration rate check unit 330 , an alarm unit 350 , and a mask communication unit 370 . The gas concentration check unit 310 may sense the gas to generate a third gas sensing signal, and the respiration rate check unit 330 may sense respiration to generate a biosignal. The mask communication unit 370 may transmit a mask sensing signal including a third gas sensing signal and a biosignal. When the safety work information transmitted from the management server 700 through the user terminal 600 includes emergency state information, the alarm unit 350 may alarm with an audible signal or a light emitting signal. The mask sensor unit 300 will be described later.

As described above, the gas environment monitoring system according to the present embodiment can detect and quickly respond to both the gas leaked from the lower side and the upper side by installing a gas sensor according to the height using the body of the worker.

The management server 700 may include a data analysis unit 710 , a server communication unit 730 , and a database unit 750 . The server communication unit 730 may receive gas environment work information including the first to third gas sensing signals and biosignals. The data analysis unit 710 determines whether the current workplace is safe (for example, based on information such as the gas concentration according to the height included in the gas environment work information, the state of the worker's breathing, etc., and the characteristics of the gas used in the workplace) For example, it is possible to generate safety work information including the calculation of the gas concentration, determination of an abnormality by determining the state of the operator, and generating an alarm signal). The database unit 750 may store preset or input information among gas environment work information.

The safety work information may include information instructing a change or restriction of the working posture when the posture of the worker is inappropriate in terms of the gas concentration according to the sensed height in the sitting or standing posture. In addition, the safety work information may include emergency state information instructing to evacuate or stop work when the gas concentration is greater than or equal to a preset reference value. The operator can receive such safety work information through the display of the terminal or an audio signal, and the operator can respond accordingly.

3 is a view for explaining a method of installing a gas sensor of a gas environment system according to an embodiment of the present invention.

The management server 700 may generate safety work information by using the gas concentration and the biosignal according to the height generated from the first gas sensing signal and the second gas sensing signal. The safety work information may include workable posture information including a sitting posture and a standing posture, as a workable posture of the operator according to the gas concentration according to the height, and emergency state information determined from the biosignal.

For example, the object worn by the worker may be work clothes, shoes, a helmet, and the like. The first gas sensor 100 may be installed on the worker's shoes. Accordingly, the first gas sensor 100 may sense gas near the floor of the workshop. For example, the second gas sensor 200 may be installed on a helmet worn by the worker.

Therefore, the first gas sensor 100 and the second gas sensor 200 have a height difference, and can quickly sense both the case where the gas is filled from below or the case where the gas is filled from above, so that it is more important to secure the safety of the operator. will be advantageous

The gas environment monitoring system may further include an additional gas sensor installed at a position about the waist of the operator. In addition, the gas environment monitoring system may further include a biosignal sensor that is directly attached to the skin of the operator's chest or stomach.

Since the first gas sensor 100 and the second gas sensor 200 are provided in the shoes and the helmet to have a height difference between the top and bottom, the management server 700 can compare the gas concentration from the top and bottom, from the bottom to the top, from the top to the bottom It is also possible to predict changes in gas concentration. In addition, the operator uses a gesture to control changes in the position information of the first gas sensor 100 and the second gas sensor 200 (eg, a change in height difference or shaking, etc.) to the management server 700 or the user terminal 600 . ), and the operator himself/herself can alarm the emergency state to the outside.

4 is a view showing an example of the mask sensor unit 300 installed in the gas mask.

As described above, the mask sensor unit 300 may sense gas sensing and breathing. For example, as shown in FIG. 3 , the mask sensor unit 300 may be installed in the filter can of the gas mask.

For example, the mask sensor unit 300 may include an external sensor as the above-described gas concentration check unit 310 and an internal sensor as the respiration rate check unit. When defining the side closer to the operator's mouth to the inside, the external sensor may be installed on the outer surface of the filter can, and the inner sensor may be installed on the inner surface of the filter can.

The external sensor can sense gas from outside, detect fine dust particles, or detect oxygen concentration.

The internal sensor, including the internal pressure sensor, can detect the number of respirations, respiration volume, filter contamination, and the like. In addition, the internal sensor may sense the concentration of oxygen and carbon dioxide by using the concentration difference between the inhalation and exhalation. In addition, the internal sensor may detect gas flowing into the interior.

In the gas mask, an alarm lamp, a vibrator, a noise generator, etc. that emit light as the above-described alarm unit 350 when the above-described emergency state information is received may be installed. In addition, an iot communication unit may be installed as the mask communication unit 370 in the gas mask.

In addition, the gas mask may be additionally installed with a blower fan operating according to the operation instruction included in the safety work information transmitted from the management server 700 to facilitate the worker's breathing. A battery may be mounted on the respirator to power these devices.

The first and second gas sensors 100 and 200 described above may be attached to and detached from clothes, shoes, belts, helmets, skin, etc., and the mask sensor unit 300 may be attached to and detached from the gas mask.

5 is a view for explaining the operation of the gas environment monitoring system when the operator works in a sitting posture. 6 is a view for explaining the operation of the gas environment monitoring system when the operator works in a standing posture.

The server transmits safety work information to the operator through the user terminal 600, and the user terminal 600 visually displays the sitting posture, standing posture or emergency state information on the display according to the transmitted safety work information, An audible signal may be generated through the alarm unit 350 installed in the gas mask.

According to the safety work information, the operator sits as shown in FIG. 5, works while standing as shown in FIG. 6, or evacuates from the workplace when an emergency state is transmitted through the alarm unit 350. can do.

For example, when it is normal that there is no gas leak in the workplace, the first gas sensor 100 may detect the leak of gas sinking to the floor. In addition, when the gas rising to the ceiling leaks, it may be detected by the second gas sensor 200 located at the relatively upper side. If gas is sensed by the first gas sensor 100 from the floor, the server may instruct the worker to move in a standing posture, and, if necessary, may deliver emergency state information to evacuate from the workplace. In addition, when gas is filled from the ceiling and gas is sensed by the second gas sensor 200 , the server may instruct the operator to move in a sitting posture or a prone posture through the user terminal 600 , if necessary It is possible to evacuate from the workplace by transmitting emergency state information.

7 is a flowchart illustrating a gas environment monitoring method according to an embodiment of the present invention.

The gas environment monitoring method is a method of monitoring a gas safety state of an environment in which an operator is located, and may be implemented by a system such as the gas environment monitoring system described with reference to FIGS. 1 to 6 .

In the gas environment monitoring method, first, the first gas sensing from the first gas sensor 100 that is mounted on the body of the worker or the object worn by the worker so that the management server 700 is located near the floor of the environment to sense the gas A signal may be obtained (S100).

Thereafter, the management server 700 obtains a second gas sensing signal from the second gas sensor 200 that is mounted on the worker's body or an object worn by the worker so as to be positioned higher than the first gas sensor 100 and senses gas. It can be done (S200).

The order of obtaining the first gas sensing signal and obtaining the second gas sensing signal may be reversed, and only an exemplary order is shown in FIG. 7 . In addition, the acquisition of the first gas sensing signal and the acquisition of the second gas sensing signal are not necessarily performed together, and either one of them may be performed.

Next, the management server 700 is installed on the mask worn by the worker, and from the mask sensor unit 300 that senses gas and senses the worker's breathing, obtains a third gas sensing signal and a biosignal as gas environment work information You can (S300).

Thereafter, the management server 700 includes the position information of the first gas sensor 100 and the second gas sensor 200, the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the biosignal. Based on the gas environment work information, it is possible to generate safety work information including the determination of whether the worker is safe (S400).

In order to generate safety work information, the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal are not all required, and the first gas sensing signal that is the gas sensing signal according to the height And it is also possible to generate safety work information only with the second gas sensing signal.

Thereafter, the management server 700 may inform the operator of safety work information (S500).

The safety work information may include, as described above, the worker's working posture information, emergency state information, and the like.

8 is a diagram illustrating a computing environment including an example computing device suitable for use in example embodiments.

The example computing environment 1000 shown in FIG. 8 includes a computing device 1100 . Typically, each configuration may have different functions and capabilities, and may additionally include components suitable for the configuration, even if not described below. The computing device 1100 may be a user terminal 600 and a management server 700 .

The computing device 1100 includes at least one processor 1120 , a computer-readable storage medium 1140 , and a bus 1500 . The processor 1120 is coupled to the bus 1500 , which includes a computer-readable storage medium 1140 , and connects various other components of the computing device 1100 to the processor 1120 .

The processor 1120 may cause the computing device 1100 to operate according to the above-mentioned exemplary embodiments. For example, the processor 1120 may execute computer-executable instructions stored in the computer-readable storage medium 1140 , and the computer-executable instructions stored in the computer-readable storage medium 1140 are executed by the processor 1120 . The computing device 1100 may be configured to perform operations according to certain example embodiments.

Computer-readable storage medium 1140 may include computer-executable instructions or program code (eg, instructions included in application 1161 ), program data (eg, data used by application 1161 ), and/or other suitable form. is configured to store the information of The application 1161 stored in the computer-readable storage medium 1140 includes a predetermined set of instructions executable by the processor 1120 .

The memory 1160 and the storage device 1180 shown in FIG. 8 are examples of the computer-readable storage medium 1140 . The memory 1160 may be loaded with computer-executable instructions that may be executed by the processor 1120 . Also, program data may be stored in the memory 1160 . For example, such memory 1160 may be a volatile memory, such as a random access memory, a non-volatile memory, or a suitable combination thereof. As another example, storage device 1180 may include one or more removable or non-removable components for storage of information. For example, the storage device 1180 may be a hard disk, a flash memory, a magnetic disk, an optical disk, another type of storage medium that is accessed by the computing device 1100 and can store desired information, or a suitable combination thereof.

Computing device 1100 may also include one or more input/output interfaces 1400 that provide interfaces for one or more input/output devices 1600 . The input/output interface 1400 is connected to the bus 1500 . The input/output device 1600 may be connected to (other components of) the computing device 1100 through the input/output interface 1400 . The input/output device 1600 includes an input device such as a pointing device, a keyboard, a touch input device, a voice input device, a sensor device, and/or a photographing device and/or an output device such as a display device, a printer, a speaker, and/or a network card. can do.

In the gas environment monitoring system and method according to the present embodiment, in particular, in the case of an environment that needs to operate stably for a long time or until the life of the device is exhausted only with extremely limited battery resources, high-speed/large-capacity communication technology such as WiFi or LTE Rather, an LPWA (Low Power Wide Area) network that is optimized for battery consumption characteristics and can service a wider area may be applied.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

100: first gas sensor
200: second gas sensor
300: mask sensor unit
310: gas concentration check unit
330: respiration rate check unit
350: alarm unit
370: mask communication unit
600: user terminal
610: processing unit
630: terminal communication unit
700: management server
710: data analysis unit
730: server communication unit

Claims (10)

In the gas environment monitoring system for monitoring the gas safety state of the environment where the operator is located,
a first gas sensor mounted on an object worn by a worker or a worker's body so as to be located near the floor of the environment to sense gas and transmit a first gas sensing signal;
a second gas sensor mounted on an object worn by the worker or a body of the worker so as to be positioned higher than the first gas sensor to sense gas and transmit a second gas sensing signal;
Based on the gas environment work information including the position information of the first gas sensor and the second gas sensor, the first gas sensing signal, and the second gas sensing signal, safety work information including determining whether a worker is safe is generated. and a management server that informs the worker of the safety work information; and
and a mask sensor unit installed on the mask worn by the worker, sensing gas and breathing of the worker, and transmitting a mask sensing signal including a third gas sensing signal and a biosignal; and
The first gas sensor is installed on the shoes worn by the worker, the second gas sensor is installed on the helmet worn by the worker,
The management server generates the safety work information using the biosignal and the gas concentration according to the height generated from the first gas sensing signal and the second gas sensing signal,
The safety work information is
As a workable posture of the operator according to the gas concentration according to the height, workable posture information including a sitting posture and a standing posture;
information for instructing to change or limit the working posture of the worker according to the gas concentration according to the height; And
and emergency state information determined from the biosignal.
The management server compares the gas concentration according to the height, and predicts the gas concentration change from the upper side to the lower side, or from the lower side to the upper side,
The mask is a gas environment monitoring system, characterized in that it is provided with a blower fan that assists the worker's breathing by operating according to the operation instructions included in the safety work information.

delete According to claim 1,
A worker terminal carried by the worker to receive and process the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal to transmit to the management server; further comprising Gas environment monitoring system characterized by.
delete delete 4. The method of claim 3,
The management server transmits the safety work information to the worker through the worker terminal,
The operator terminal is a gas environment monitoring system, characterized in that, according to the transmitted safety work information, a sitting posture, standing posture or emergency state information on a display, or to generate an audible signal.
. In the gas environment monitoring method for monitoring the gas safety state of the environment where the operator is located,
acquiring a first gas sensing signal from a first gas sensor that is mounted on an object worn by the worker or the body of the worker so that the management server is located near the floor of the environment;
obtaining a second gas sensing signal from a second gas sensor that is mounted on an object worn by the worker or a body of the worker so that the management server is positioned higher than the first gas sensor;
The management server is based on the gas environment operation information including the position information of the first gas sensor and the second gas sensor, the first gas sensing signal, and the second gas sensing signal, safety including determination of whether the operator is safe generating job information;
The management server notifying the safety work information to the operator; and
obtaining, by the management server, a third gas sensing signal and a biosignal as the gas environment work information from the mask sensor unit installed on the mask worn by the worker, sensing gas and sensing the worker's breathing;
The management server compares the gas concentration according to the height based on the acquired first gas sensing signal, the second gas sensing signal, and the third gas sensing signal, and moves the gas from the upper side to the lower side, or from the lower side to the upper side. Including; predicting the concentration change;
The first gas sensor is installed on the shoes worn by the worker, the second gas sensor is installed on the helmet worn by the worker,
The mask is provided with a blower fan that assists the worker's breathing by operating according to the operation instructions included in the safety work information,
In the step of generating the safety work information, the management server generates the safety work information by using the gas concentration according to the height and the biosignal from the first gas sensing signal and the second gas sensing signal,
The safety work information is
As a workable posture of the operator according to the gas concentration according to the height, workable posture information including a sitting posture and a standing posture;
information for instructing to change or limit the working posture of the worker when the posture of the worker is inappropriate based on the gas concentration according to the height; and
The gas environment monitoring method comprising a; emergency state information determined from the biosignal.

delete 8. The method of claim 7,
The management server is carried by the operator, the first gas sensing signal, the first gas sensing signal, the first gas sensing signal from the operator terminal for receiving and processing the first gas sensing signal, the second gas sensing signal, the third gas sensing signal, and the bio-signal A gas environment monitoring method, characterized in that receiving the second gas sensing signal, the third gas sensing signal, and the bio-signal.
delete

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