WO2024058437A1 - Oxygen collection system for measuring oxygen concentration - Google Patents

Abstract

The present invention comprises: a main body unit which distributes power after establishing a communication connection to prestored user and safety manager terminals; a measurement means unit which collects atmospheric environment data in a preset space by using an atmospheric environment measurement means; a ventilation unit which, in response to atmospheric environment information measured by the measurement means unit in a preset sealed space, carries out ventilation by calculating whether to carry out ventilation, flow rates of air supply and exhaust, and air supply and exhaust times; a screen display unit which displays preset data on a display provided on one surface of the main body unit; and a control unit which carries out lighting control and notification transmission in response to atmospheric environment measurement information collected by the measurement means unit.

Description

Oxygen capture system for measuring oxygen concentration

The present invention relates to an oxygen collection system, and more specifically, to an oxygen collection system for measuring oxygen concentration that measures the concentration of harmful gases, including oxygen concentration in the atmosphere, and confirms the atmospheric condition of the target location.

It is thought that working outdoors is common in industrial construction environments, but surprisingly, there are many environments in which construction is performed in underground facilities or enclosed underground spaces, such as wiring work, tunnel construction, and underground facility construction, and the average number of accidents that occur in these environments is When the fatality rate of accidental accidents is 1.1%, the fatality rate of suffocation accidents is as high as 47.4%. These statistics show that about half of workers die when suffocation accidents occur.

In addition, the atmosphere in a closed underground space may contain many harmful gases or may be low in oxygen, but this cannot be detected with the naked eye, and the current atmosphere will remain in the atmosphere for at least a few tens of seconds to a maximum of several minutes after exposure to the above environment. By the time you physically feel that something is wrong, you are already in a state of poisoning from harmful gases or your consciousness begins to blur due to lack of oxygen, so prevention methods are not easy compared to other industrial accidents.

Therefore, among the components of the work space air environment, the work space air environment determines whether the worker can work by calculating atmospheric environment measurements that can affect worker safety accidents, such as oxygen concentration, harmful gas concentration, temperature, humidity, and dust level. Research on environmental analysis systems is required.

Prior art literature Korean Patent No. 10-2253851

The purpose of the present invention is to prevent suffocation accidents by detecting the atmospheric environment using a plurality of sensors to determine whether the environment is suitable for work before the user enters.

In addition, the purpose is to prevent explosion accidents in the confined space where work is planned by calculating the risk of explosion within the confined space using the sensed atmospheric environment data and the distance of the detected metal material.

In addition, when checking the atmospheric environment of the location where the user will work, the administrator and the user's terminal are connected through wireless or wired communication, and in the event of an accident, all users are notified through the control unit to enable quick response by workers and minimize damage in the event of an accident. there is.

The oxygen collection system for measuring oxygen concentration according to an embodiment of the present invention is a main body that distributes power after communication connection with pre-stored terminals of users and safety managers, and atmospheric environment data in a preset space using an atmospheric environment measurement means. A measuring unit that collects, a ventilation unit that performs ventilation by calculating whether ventilation is performed, supply/exhaust flow rate, and supply/exhaust time in response to the atmospheric environment information measured by the measurement unit in a preset enclosed space, one side of the main body part It may include a screen display unit that displays preset data on a display provided in and a control unit that performs lighting control and transmits notifications in response to atmospheric environment measurement information collected by the measurement means unit.

In addition, the measuring means is an atmospheric environment measuring part that measures the oxygen concentration, harmful gas concentration, temperature, humidity, and dust amount at the measurement location, and an image capture device is used to capture and photograph images using an imaging device provided at a preset position of the measuring means. It may include a video capture unit that transmits video data, a lighting unit that irradiates light in a pre-stored pattern in response to the signal received from the control unit, and a voice transceiver that relays voice transmission and reception between the user and the safety manager.

In addition, the measurement means is mounted on a preset part of the user and provides a user-accompanied measurement mode to measure the atmospheric environment at the measurement target location, and when in the user-accompanied measurement mode, it is attached to the user's wrist or neck. It is connected to a user health measurement sensor member worn and collects health data including the user's current blood oxygen concentration, blood oxygen saturation, heart rate, blood pressure, body temperature, and respiratory rate, and transmits it to the measurement means unit, and transmits it to the health data item. If at least one of the items is outside the pre-stored normal range, a user health abnormality notification signal may be transmitted to the control unit.

In addition, the measuring means provides a stand-alone measurement mode in which atmospheric environment measurement is performed independently by combining a mobile member capable of remote control and direction change, wherein the mobile member receives power from the main body and the user A remote control signal transmitted from the terminal can be received.

In addition, the ventilation unit, if the atmospheric environment data in the preset enclosed space is outside the preset normal range, determines the ventilation performance standard, and when it is determined to the ventilation performance standard, calculates according to the following [Equation 1] Perform air supply or exhaust during the designated ventilation time,

[Equation 1]

(Here, N is the ventilation time (minutes), V is the volume of the atmospheric environment measurement location, and ACH is the air exchange rate per hour.)

The explosion risk of the preset enclosed space is calculated according to the following [Equation 2] and transmitted to the screen display unit,

[Equation 2]

(Here, E _w is the explosion risk, O _c is the oxygen concentration, H _c is the hydrogen sulfide concentration, I _d is the weight of the distance to the sensing metal, E _n is the number of entrances to the confined space, and E _s is the diameter of the entrance to the confined space. box)

If the explosion risk exceeds 40%, an explosion risk notification can be sent to the control unit.

According to the present invention, by sensing the atmospheric environment using a plurality of sensors, it is possible to prevent suffocation accidents by determining whether the environment is suitable for work before the user enters.

In addition, by calculating the explosion risk within a confined space using the sensed atmospheric environment data and the distance of the detected metal material, explosion accidents within the confined space where work is planned can be prevented in advance.

In addition, when checking the atmospheric environment of the location where the user will work, the administrator and the user's terminal are connected to wireless or wired communication, so that in the event of an accident, all users are notified through the control unit, allowing workers to respond quickly and minimizing damage in the event of an accident. .

Figure 1 is a block diagram of an oxygen capture system for measuring oxygen concentration according to an embodiment of the present invention.

Figure 2 is a diagram showing an intermediate block diagram of an oxygen capture system for measuring oxygen concentration according to an embodiment of the present invention.

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.

The scope of the present invention is not limited to the embodiments described below, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

Hereinafter, the oxygen capture system for measuring oxygen concentration of the present invention will be described in detail with reference to the attached FIGS. 1 and 2.

First, Figure 1 is a block diagram of an oxygen collection system for measuring oxygen concentration according to an embodiment of the present invention, and Figure 2 is a middle block of an oxygen collection system for measuring oxygen concentration according to an embodiment of the present invention. This is a diagram showing a diagram.

Referring to Figure 1, the oxygen capture system for measuring oxygen concentration according to an embodiment of the present invention includes a main body 110, a measuring means 120, a ventilation unit 130, a screen display 140, and a control unit ( 150) may be included.

The main body unit 110 is configured to connect the measuring means unit 120, the ventilation unit 130, the screen display unit 140, and the control unit after confirming a communication connection using wired or wireless communication with the pre-stored user and safety manager terminals. (150) can be connected to the main body 110 to distribute power to parts requiring power.

Here, the power supplied by the main body 110 can be supplied from a battery built into the main body 110 or an external power source.

Meanwhile, after the initial power supply to the main body 110, the preset terminal (electronic terminal capable of performing wireless communication and input/output, such as a smartphone, tablet PC, laptop, etc.) of the user and safety manager registered in the main body 110 It must be registered within 10 minutes to supply power to the parts that require power (measurement unit, ventilation unit, screen display unit, control unit, etc.).

At this time, if the main body unit 110 is not connected to the preset terminal of the registered user and safety manager within 10 minutes after the initial power supply, the main body unit 110 changes to a standby state and supplies the power. This can be maintained in a standby state without performing power supply to the required part.

Here, when the preset terminal of the user and safety manager registered in the main body 110 is connected, the standby state is changed to the power supply state, so that power can be supplied to the part requiring the power.

Additionally, the main body 110 can relay wired and wireless communications with a preset user terminal.

More specifically, the main body unit 110 is an oxygen collection system for measuring the oxygen concentration, such as communication with the preset user terminal or safety manager terminal, communication between the measuring means unit 120 and the control unit 150, etc. (100) Wired and wireless communication relay for data transmission and reception can be performed in any environment where transmission and reception of data is required.

The measuring means unit 120 can collect atmospheric environment data within a preset space using an atmospheric environment measuring means.

More specifically, the measuring means unit 120 receives power from the main body unit 110 to measure atmospheric environment data in a preset space, and uses basic devices (lighting devices, video recording, etc.) necessary for measuring the atmospheric environment. devices, etc.) may be included.

At this time, the atmospheric environment data measured by the measuring means unit 120 may be transmitted to the main body unit 110 in real time.

In addition, the measuring means unit 120, which performs various functions including atmospheric environment data measurement, image data collection, lighting irradiation, etc., will be described in more detail with reference to FIG. 2.

Referring to Figure 2, the measuring means unit 120 may include an air environment measuring unit 121, an image capturing unit 122, a lighting unit 123, a voice transmitting/receiving unit 124, and a monitoring unit 125. You can.

The atmospheric environment measuring unit 121 can measure atmospheric environmental data such as oxygen concentration, harmful gas concentration, temperature, humidity, and dust amount at the location where the measuring means unit 120 is located.

At this time, the atmospheric environment measurement value measured through the atmospheric environment measurement unit 121 is automatically compared to determine whether it is outside the preset standard value range for each item, and if it is outside the standard value, a notification signal exceeding the standard value is sent to the control unit 150. can be transmitted.

For example, the standard range is set differently for each item, but the oxygen concentration is 18% to 23.5%, the carbon dioxide concentration is less than 1.5%, the hydrogen sulfide concentration is less than 10ppm, the temperature is less than 36℃, and the standard humidity (at 15℃). 70% or less, 50% or less at 18-20℃, 40% or less when 24℃ or higher), dust 36μg/m ³ or less can be set as the most common standard range, and is provided in the air environment measurement unit 121. Depending on the characteristics of the sensor, sensor item, and atmospheric environment measurement location, the standard value setting can be adjusted or applied.

Through this, it is possible to determine whether there is a risk of a suffocation accident by sensing atmospheric environment information by measuring the atmospheric environment using the air environment measurement unit 121 in a place where it is not currently confirmed whether it is safe from the risk of a suffocation accident.

The image capturing unit 122 may capture an image using an image capturing device provided at a preset location of the measuring means unit 120 and transmit the captured image data to the main body unit 110.

Using this, the measuring means unit 120 can collect more image information in an enclosed space or underground space that is difficult for people to enter using the single measurement mode.

In addition, the image data using the image capture unit 122 is output to the screen of the screen display unit 140 as a real-time image through a connection cable connected between the measuring means unit 120 and the main body unit 110. Image data can be transmitted to the display unit 140.

A plurality of lighting units 123 are provided at preset positions of the measuring means unit 120, and one or more lights are positioned to face the same direction as the image capturing device of the image capturing unit 122 and emit light. can do.

Additionally, the lighting unit 123 may emit light in a pre-stored pattern corresponding to the signal received from the control unit 150.

For example, if the lighting unit 123 cannot move because the movable member is damaged or overturned while the measuring means unit 120 is collecting atmospheric environment information and image information in a closed space or underground space in a stand-alone measurement mode, By flashing the display at maximum brightness at intervals of 1 second, the light can be output to make it easy to determine the location of the measuring means unit 120 in a dark environment.

The voice transceiver 124 can relay voice transmission and reception between the user and the safety manager.

More specifically, when in the user-accompanied measurement mode, the user's wired handset and the voice transceiver 124 are connected through a connection cable connected between the measurement means unit 120 and the main body unit 110, and the connection cable By transmitting and receiving voice data to the main body 110, smooth voice data transmission and reception between the user and the safety manager can be performed.

Here, the user's wired handset is connected to the measuring means unit 120, and the safety manager can transmit and receive voice data with the user through the wired handset connected to the main body unit 110.

Referring again to FIG. 1, the measuring means unit 120 performs atmospheric environment measurement, image data collection, lighting irradiation, voice transmission and reception, monitoring, etc., and is connected to the main body unit 110 or the main body unit 110. Measurements can be performed by selecting user-accompanied measurement mode or stand-alone measurement mode through a connected preset user terminal.

For example, when the measuring means unit 120 is in a user-accompanied measurement mode, it can be mounted on a preset part of the user to measure the atmospheric environment of the measurement target location.

Here, the measuring means unit 120 can be worn anywhere on the user's body or equipment worn by the user, but if the purpose is to check whether the worker can work in a closed space or underground space, the user It may be ideal to measure the atmospheric environment adjacent to the user's breathing location by combining it with a safety element that protects the user's head.

At this time, in the case of the user accompanying measurement mode, it is connected to a user health measurement sensor member (in the form of a necklace, neck band, or bracelet) worn on the user's wrist or neck to measure the user's current blood oxygen concentration, blood oxygen saturation, heart rate, blood pressure, Health data including body temperature and respiratory rate can be collected and transmitted to the measuring means unit 120.

Here, since the maximum distance between the user health measurement sensor member and the measuring means 120 does not exceed 2 m, user health data can be transmitted to the measuring means 120 using wireless communication.

At this time, if at least one item of the user's health data measured from the user health measurement sensor member is outside the pre-stored normal range, a user health abnormality notification signal may be transmitted to the control unit 150.

Meanwhile, the pre-stored normal range can be stored as blood oxygen concentration of 95 to 100%, blood oxygen saturation of 95% or more, heart rate of 60 to 100 BPM, blood pressure of 80 to 120 mmHg, body temperature of 36 to 37.5°C, and respiratory rate of 18 times/min. The health measurement sensor and normal range can be added or subtracted and stored depending on the work environment or the health condition of the user wearing it.

For example, if the wearer has a history of heart disease and the average heart rate is 80 BPM, the standard range of heart rate is set narrower to between 70 and 90 BPM, and if the average blood pressure is 100 mmHg, the normal range of blood pressure is 90 to 110 mm Hg. By setting it to , it can be determined whether the user's health status is normal based on a normal range narrower than the existing normal range.

In addition, the measuring means unit 120 is attached to the user's body by combining a moving member capable of remote control and direction change movement, so rather than moving the position and measuring according to the user's movement, the measuring means unit 120 moves the position alone and waits. A standalone measurement mode that performs environmental measurements can be provided.

Here, the moving member may receive power from the main body 110 and receive a remote control signal transmitted from the user terminal.

In addition, the moving member includes four wheels, an electric motor that rotates the wheel in response to electricity supply, a coupling portion coupled to the measuring means unit 120, a remote control signal receiver that receives the remote control signal, and the It may include a wheel controller that changes direction and moves the wheels forward and backward according to signals received from the remote control signal receiver.

On the other hand, when water more than 20 cm high is accumulated on the floor in the working environment, the moving member is a ship-shaped body with buoyancy so that it can float on the water, a motor equipped with a plurality of propellers that provide moving power, and the measurement. It may include a coupling part coupled to the means 120, a remote control signal receiver, and a propeller controller that controls the propeller rotation direction and rotation speed to perform forward and backward movement and direction movement according to the signal received from the remote control signal receiver. .

As described above, when coupled to a moving member, the measuring means unit 120 supplies power, transmits and receives data, and retrieves the cable in case of emergency through a connection cable connected from the main body unit 110. Recovery, etc. can be performed.

Here, the length of the cable between the measuring means unit 120 and the main body unit 110 can be adjusted to correspond to the enclosed space or underground space where the atmospheric environment is measured.

Meanwhile, in the case of the single measurement mode, the real-time image captured through the image capture unit 122 is output to the screen display unit 140 or output to the user terminal to move the measurement means unit 120. can do.

The ventilation unit 130 calculates whether ventilation is performed, the supply/exhaust flow rate, and the supply/exhaust time in response to the atmospheric environment information measured by the measurement means unit 120 in the preset enclosed space that is the oxygen concentration measurement location. can be performed.

Here, the ventilation unit 130 can measure oxygen concentration even in places other than the preset closed space, and since the place where oxygen concentration measurement is required is generally a closed space, it can be expressed as a preset closed space.

At this time, the ventilation unit 130 is made of a pipe-shaped device capable of supplying and exhausting air, and can receive power from the main body 110.

On the other hand, the preset closed space is a space that is closed for a long time or where ventilation is performed, such as the inside of a manhole, a sewage treatment facility, a waste storage area in a pig or livestock farm, a concrete curing site at a construction site, a storage tank at a relay pump station, a water pipe, or a sewage pipe. It may mean a space that is difficult and has a high risk of harmful gases.

Here, the ventilation unit 130 can determine the ventilation performance standard when the atmospheric environment data in a preset closed space, which is a space where atmospheric environment data is collected by the measuring means unit 120, is outside the preset normal range. there is.

At this time, the preset normal range may mean the standard value range for each item of the atmospheric environment measurement value measured through the atmospheric environment measurement unit 121.

That is, if the atmospheric environment measurement value measured through the atmospheric environment measuring unit 121 exceeds the preset normal range, ventilation is performed and air supply or exhaust is supplied during the ventilation time calculated according to the following [Equation 1]. It can be done.

[Equation 1]

Here, N may mean ventilation time (minutes), V may mean the volume of the atmospheric environment measurement location, and ACH may mean the air exchange rate per hour.

At this time, the volume of the atmospheric environment measurement location is determined by selecting the shape (rectangular, cylindrical, combined type) of the atmospheric environment measurement location through a preset user terminal or safety manager terminal communicated with the main body 110, and each shape If you input the dimension value according to , the ventilation unit 130 can automatically calculate the volume.

For example, when the atmospheric environment measurement location is a square, if the shape of the atmospheric environment measurement location is selected as a square on the main body 110, a screen for inputting the width, length, and height to calculate the volume is provided to the user or The safety manager can automatically calculate the volume by entering the dimensions in a preset terminal.

In addition, the air exchange rate per hour (ACH) refers to the air exchange rate per hour corresponding to the volume of 1 m ³ of the ventilation unit 130 and can be calculated in inverse proportion to the previously calculated volume.

For example, if the air exchange rate per hour (ACH) corresponding to the volume of 1 m ³ of the ventilation unit 130 is 6000, and the volume (V) of the ventilation object calculated from the preset user is calculated to be 300 m ³ , The air exchange rate per hour (ACH) can be calculated as 20 times. At this time, since the ventilation time (N) is in minutes, it can be calculated as 3 minutes (300/(300*20/60)=3).

Meanwhile, the ventilation unit 130 can calculate the explosion risk of a preset enclosed space according to the following [Equation 2] and transmit it to the screen display unit 140.

[Equation 2]

Here, E _w is the explosion risk, O _c is the oxygen concentration, H _c is the hydrogen sulfide concentration, I _d is the weight of the distance to the sensing metal, E _n is the number of entrances to the confined space, and E _s is the diameter of the entrance to the confined space. You can.

In addition, the explosion risk (E _w ) is expressed in percentage (%), the oxygen concentration (O _c ) is %, the hydrogen sulfide concentration (H _c ) is ppm, and the entrance diameter of the enclosed space (E _s ) is mm. It can be calculated based on the unit.

At this time, the distance weight (I _d ) to the detected metal is determined by determining whether it is metal through a metal detection device provided in the ventilation unit 130, calculating the distance to the object determined to be metal, and weighting it according to the distance. can be given.

Here, the distance weight (I _d ) to the sensing metal may be given a weight value according to [Table 1] below.

Less than 0~50mm	More than 50mm but less than 100mm	100mm or more but less than 500mm	500mm or more but less than 1000mm	Over 1000mm
50	20	5	1.5	1.2

Through this, the explosion risk (E _w ) is calculated by reflecting [Table 1] given the distance weight (I _d ) to the detected metal, and the metal detector that calculates the distance to the detected metal is the measuring means unit. It can be provided at (120).

In this way, the explosion risk (E _w ) is proportional to the concentration of a specific component among the atmospheric environment data through the measuring means unit 120 and the distance to the detected metal, and is proportional to the entrance or exit of the space or enclosed space to be measured. It can be calculated as a percentage in inverse proportion to the number and entrance diameter.

For example, if the oxygen concentration (O _c ) in a tank with two entrances of the same size (600 mm) is measured to be 60%, the hydrogen sulfide concentration (H _c ) is measured to be 300 ppm, and the distance from the sensing metal is measured to be 30 mm, the explosion risk is (E _w ) can be calculated as 75%.

Additionally, if the sizes of the entrances and exits are different, it can be calculated by adding the entrances and exits of each enclosed space. For example, under the above conditions or if there are three entrances to the confined space, the diameter of two entrances (E _s ) is 300 mm, the diameter of one entrance (E _s ) is 500 mm, and the remaining conditions are the same, the explosion risk (E _w ) can be calculated to be about 81.81%.

On the other hand, the explosion risk (E _w ) can be displayed as a maximum of 100% even if the value calculated using [Equation 2] exceeds 100, and is the standard explosion risk for the user to transmit an explosion risk notification ( E _w ) can be set.

For example, with the user setting the standard explosion risk (E _w ) for transmitting an explosion risk notification to 40%, the explosion risk calculated using the measurement detection unit 120 and the [Equation 2] If (E _w ) exceeds 40%, an explosion risk notification is sent to the control unit 150 to perform ventilation, removal of nearby detected metal, or provision of spark prevention measures, etc., and the explosion risk (E _w ) is When the calculation is below 40%, the user can perform the task again.

Here, the notification can be transmitted to the user terminal of the user and safety manager registered in the main body 110 through the control unit 150, and the explosion risk alarm sound provided inside the main body 110 is activated at the same time. User safety can be ensured.

The screen display unit 140 may display data collected by the measuring means unit 120 on a display provided on one side of the main body unit 110.

Here, the screen display unit 140 may be provided on the top or side of the main body 110 and may output a screen corresponding to the signal received from the control unit 150.

Additionally, an image output from the user terminal connected to the main body 110 can be played on the screen display unit 140.

The control unit 150 may perform lighting control, determine sensor failure, and transmit a notification to the preset user terminal in response to the atmospheric environment measurement information collected by the measuring means unit 120.

More specifically, the control unit 150, if the communication connection with the terminal of the user and safety manager pre-stored in the main body 110 is not registered within 10 minutes after the initial power supply, the screen display unit 140 A signal can be transmitted to display a screen indicating non-registration and standby mode.

In addition, if any of the air environment items measured through the air environment measurement unit 121 in the measuring means unit 120 exceeds the standard value, a risk classification and risk display corresponding to the percentage of the exceeded standard value are performed on the main body. It can be controlled to send a notification of exceeding the standard value to the user terminal and the safety manager terminal connected to (110), display items exceeding the standard value on the screen display unit 140, and display the sensing value.

Here, the control unit 150 can set the error range between the standard value and the measured value for each item to between 5% and 20% and determine whether the standard value is exceeded by reflecting the sensor measurement error.

In addition, the control unit 150 controls the image capture unit among the lights in the lighting unit 123 for smooth movement when the measuring means unit 120 measures the atmospheric environment in an enclosed space or an underground space in the single measurement mode. The video recording device of (122) is controlled to emit light only from the lights located in the direction it is facing, or in a situation where the user or worker has to go to retrieve the moving member due to damage or overturning, all lights in the lighting unit (123) are turned on for 0.5 seconds. The lighting unit 123 can be controlled to emit light irregularly at intervals of 2 to 2 seconds so that it can be easily found.

Meanwhile, when the explosion risk notification is activated through the ventilation unit 130, the control unit 130 receives a signal from the safety manager's terminal connected to communication through the main body unit 110 and deactivates the explosion risk notification. This allows you to control the notification so that it does not continue to sound even after the user leaves the work range.

Through the above process, the oxygen collection system and method for measuring oxygen concentration supplies power to parts such as the measurement means, ventilation unit, screen display unit, and control unit of the lower components through the main body connected to communication with the terminal of the user or safety manager. can be supplied. Power is supplied from the main body to power the measuring unit, ventilation unit, screen display unit, and control unit, and the measuring unit can perform atmospheric environment, video, lighting irradiation, voice transmission/reception relay, and sensor monitoring. In addition, when measuring with the user, it is connected to a sensor member attached to the user's body, and if it is determined that there is an abnormality in the user's health, an abnormality notification can be immediately sent to the control unit to prevent safety accidents. On the other hand, when the atmospheric environment needs to be measured by the measuring unit alone without the user accompanying it, a remote controllable movable member is attached and only the measuring unit is moved to the relevant location to measure the atmospheric environment, and lighting and video recording equipment are used. Through this, the current location of the measurement unit and the atmospheric environment by location can be collected. In addition, it determines whether or not to ventilate the space where oxygen concentration is measured through the ventilation unit, performs ventilation through supply or exhaust air for a preset time, and calculates the risk of explosion using the atmospheric environment data measured by the measurement unit. If the risk of explosion exceeds the standard value, the occurrence of safety accidents can be minimized by sending an explosion risk notification to users and safety managers through the control unit.

According to one embodiment of the present invention, by sensing the atmospheric environment using a plurality of sensors, it is possible to prevent suffocation accidents by determining whether the environment is suitable for work before the user enters.

In addition, by calculating the explosion risk within a confined space using the sensed atmospheric environment data and the distance of the detected metal material, explosion accidents within the confined space where work is planned can be prevented in advance.

In addition, when checking the atmospheric environment of the location where the user will work, the administrator and the user's terminal are connected to wireless or wired communication, so that in the event of an accident, all users are notified through the control unit, allowing workers to respond quickly and minimizing damage in the event of an accident. .

As described above, although one embodiment of the present invention has been described with limited examples and drawings, one embodiment of the present invention is not limited to the above-described embodiment, which is based on common knowledge in the field to which the present invention pertains. Anyone who has the knowledge can make various modifications and variations from this description. Accordingly, one embodiment of the present invention should be understood only by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof shall fall within the scope of the spirit of the present invention.

100: Oxygen capture system for measuring oxygen concentration

110: main body

120: Measuring means

121: Atmospheric environment measurement unit

122: Video recording department

123: lighting unit

124: Voice transceiver

130: ventilation unit

140: screen display unit

150: control unit

Claims (5)

1. A main body that distributes power after communicating with pre-stored user and safety manager terminals;

   A measuring means unit that collects atmospheric environment data within a preset space using atmospheric environment measuring means;

   A ventilation unit that performs ventilation by calculating whether ventilation is performed, supply/exhaust flow rate, and supply/exhaust time in response to atmospheric environment information measured by the measuring means unit in a preset enclosed space;

   a screen display unit that displays preset data on a display provided on one side of the main body; and

   A control unit that performs lighting control and transmits notifications in response to the atmospheric environment measurement information collected by the measurement means unit;

   An oxygen capture system for measuring oxygen concentration, comprising:
2. According to paragraph 1,

   The measuring means,

   Atmospheric environment measurement unit that measures oxygen concentration, harmful gas concentration, temperature, humidity, and dust amount at the measurement location;

   an image capturing unit that captures images and transmits the captured image data using an image capturing device provided at a preset location of the measuring means unit;

   a lighting unit that irradiates light in a pre-stored pattern in response to a signal received from the control unit; and

   A voice transceiver unit that relays voice transmission and reception between the user and the safety manager;

   An oxygen capture system for measuring oxygen concentration, comprising:
3. According to paragraph 2,

   The measuring means,

   Provides a user-accompanied measurement mode that is mounted on the user's preset area and performs the measurement of the atmospheric environment at the measurement target location,

   When in the user-accompanied measurement mode, health data is connected to a user health measurement sensor member worn on the user's wrist or neck and includes the user's current blood oxygen concentration, blood oxygen saturation, heart rate, blood pressure, body temperature, and respiratory rate. Collect and transmit to the measuring means,

   An oxygen collection system for measuring oxygen concentration, characterized in that when at least one of the health data items is outside a pre-stored normal range, a user health abnormality notification signal is transmitted to the control unit.
4. According to paragraph 2,

   The measuring means,

   Provides a standalone measurement mode that independently performs atmospheric environment measurements by combining remote control and a moving member capable of changing direction.

   An oxygen capture system for measuring oxygen concentration, characterized in that the moving member receives power from the main body and receives a remote control signal transmitted from the user terminal.
5. According to paragraph 1,

   The ventilation unit,

   If the atmospheric environment data within the preset enclosed space is outside the preset normal range, it is judged based on ventilation performance standards,

   If it is determined based on the above ventilation performance criteria, air supply or exhaust is performed during the ventilation time calculated according to [Equation 1] below,

   [Equation 1]

   

   (Here, N is the ventilation time (minutes), V is the volume of the atmospheric environment measurement location, and ACH is the air exchange rate per hour.)

   The explosion risk of the preset enclosed space is calculated according to the following [Equation 2] and transmitted to the screen display unit,

   [Equation 2]

   

   (Here, E _w is the explosion risk, O _c is the oxygen concentration, H _c is the hydrogen sulfide concentration, I _d is the weight of the distance to the sensing metal, E _n is the number of entrances to the confined space, and E _s is the diameter of the entrance to the confined space. box)

   An oxygen collection system for measuring oxygen concentration, characterized in that when the explosion risk exceeds 40%, an explosion risk notification is transmitted to the control unit.

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