KR102493985B1 - System for alerting and alarming leak of hazardous chemicals - Google Patents

Abstract

According to the present invention, a system for alarming and notifying a leak of hazardous chemicals may comprise: a sensor disposed in a sensing area where hazardous chemicals may leak, and outputting a cumulative leakage amount signal indicating an accumulated leakage amount of the hazardous chemicals; and an analysis management device which generates inspection schedule information based on the sensor characteristic information of a sensor corresponding to a detection area and the cumulative leak amount information converted from the accumulated leak amount signal, and calculates management fee information based on the sensor characteristic information and the cumulative leakage amount information.

Description

System for alerting and alarming leak of hazardous chemicals}

The present invention relates to a leak warning and notification system for hazardous chemicals, and more particularly, based on a cumulative leakage amount of hazardous chemicals measured from a sensor disposed in a sensing area, to warn in advance of leakage of hazardous chemicals, and to prevent leakage of hazardous chemicals. It's about a system that notifies you of an occurrence.

In factory buildings, industrial facilities, and plant facilities, there are tanks, pumps, valves, pipes, heads, etc. for using various liquids such as heating and cooling and sanitation facilities, fire extinguishing facilities, utility facilities, etc. A sensor is installed to detect leaks of water, oil, or chemicals. This is because when leakage and leaked liquid leak from the main equipment and facilities, and the liquid penetrates into the electric parts and terminals of the production line, and the main production process line, the production line is stopped or there is a risk of electric shock and fire due to a short circuit.

Therefore, in order to solve the above problems, leak detection sensors, films, and cables are installed on the floor around major equipment, pumps, valves, pipe connections, and utilities.

However, in the case of installing conventional “leakage” detection sensors, films, and cables on tanks, pumps, valves, pipes, heads, etc., there are not only one or two places to install on the site, so many installation restrictions and high construction costs are required. In companies, it is difficult to install due to insufficient installation budget.

In addition, most of the existing “leakage” detection sensors, films, cables, etc. require separate power and communication lines, so the construction cost is expensive, and it takes a lot of cost to install sensors, alarms, and “monitoring” systems.

In addition, maintenance is difficult, such as leakage sensors, films, and cables, which are mainly installed on the floor, and external damage to the sensors often occurs, resulting in malfunctions.

In addition, storage tanks in which various “hazardous” chemical substances are stored are installed and managed within the discharge walls.

A flow path surrounding the storage tank is disposed within the discharge wall, and “hazardous” chemical substances leaking from the storage tank are discharged to the outside through the flow path.

A wastewater treatment path leading to a wastewater treatment plant is connected to the flow path, but it is also connected to a drain, so when leaked “hazardous” chemicals are discharged through the drain, it can pollute the environment and cause damage to the human body.

Accordingly, a number of devices or systems for detecting leakage of chemical substances from a plurality of storage tanks in a discharge wall have been conventionally proposed.

However, in the conventional “hazardous” chemical “substance” leak detection device, a leak detector or a gas detector is used to detect “leak” of a chemical substance. It is possible, and there is a problem that the leakage cannot be recognized in advance.

In other words, in order to minimize the damage from leakage accidents of 　hazardous 　chemicals　substances, there is a problem that often misses the initial golden time for recognizing and preventing leaks in advance of 　hazardous 　chemicals　substances.

In addition, maintenance of the detection system composed of a sensor for detecting hazardous chemicals, a signal controller, a signal output device, etc. is conventionally performed directly by an operator who operates the detection system, and thus maintenance is performed at an appropriate time in consideration of the aging of the sensor. There is a problem in that it is difficult to perform maintenance, management, and repair, such as replacing a sensor or changing the setting of a signal controller in response to a change in a hazardous chemical substance to be detected.

Korean Patent Publication No. 10-2244634

An object of the present invention is to provide a leakage warning and notification system for hazardous chemicals that not only notifies the occurrence of leakage when leakage of hazardous chemicals occurs, but also can warn of leakage in advance before leakage occurs.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

In order to solve the above technical problem, the leakage alarm and notification system for hazardous chemicals according to the present invention is disposed in a detection area where hazardous chemicals may leak, and outputs a cumulative leakage amount signal indicating the accumulated leakage amount of the hazardous chemicals. sensor; and generating inspection schedule information based on sensor characteristic information of the sensor corresponding to the detection area and cumulative leakage amount information converted from the accumulated leakage amount signal, and management fee information based on the sensor characteristic information and the accumulated leakage amount information. It may include an analysis management device that calculates.

Preferably, the analysis management device generates a regular inspection time point at which the cumulative leakage amount information is expected to reach the regular replacement reference leakage amount information as regular inspection schedule information based on the sensor characteristic information and the accumulated leakage amount information, and the inspection schedule information can be included.

Preferably, the analysis management device calculates the cumulative leak rate increase rate of the accumulated leak rate based on the accumulated leak rate information and generates it as cumulative leak rate increase rate information, and when the cumulative leak rate increase rate information exceeds a notification reference increase rate, the sensing region It may be determined that the leakage state of the hazardous chemical substance in is a second leakage state in which leakage occurs.

Preferably, when it is determined that the leakage state is the second leakage state, the analysis management device generates a preset emergency inspection section as emergency inspection schedule information from a time point when the cumulative leakage amount increase rate information exceeds a notification reference increase rate, It can be included in the inspection schedule information.

Preferably, the analysis management device extracts sensor price information from the sensor characteristic information, calculates sensor replacement number information for a preset management period based on the cumulative leakage amount information, and calculates the sensor price information and the sensor replacement number. Based on the information, the management fee information may be calculated.

Preferably, the analysis management device may correct the management fee information based on past hazardous chemical substance leakage history information in the detection area.

A hazardous chemical leakage alarm and notification system according to another embodiment of the present invention includes a sensor disposed in a sensing area where hazardous chemicals may leak and outputting a cumulative leakage amount signal indicating an accumulated leakage amount of the hazardous chemicals; and whether the leakage state of the hazardous chemical substance in the detection region is a first leakage state in which leakage should be alarmed based on the sensor characteristic information of the sensor corresponding to the detection region and the accumulated leakage amount information converted from the accumulated leakage amount signal. and an analysis management device that determines at least one of whether or not the leakage state is a second leakage state that should inform that leakage has occurred.

Preferably, the analysis management device calculates an accumulated leak rate increase rate of the accumulated leak rate based on the accumulated leak rate information and generates it as accumulated leak rate increase rate information, and when the accumulated leak rate increase rate information exceeds an alarm reference increase rate, the leakage state It can be determined that is the first leakage state.

Preferably, the analysis management device may transmit a leakage alarm signal to prevent leakage of the hazardous chemical substance in the detection area when it is determined that the leakage state is the first leakage state.

Preferably, the analysis management device calculates an accumulated leak rate increase rate of the accumulated leak rate based on the accumulated leak rate information and generates it as accumulated leak rate increase rate information, and when the accumulated leak rate increase rate information exceeds a notification reference increase rate, the leakage state It can be determined that is the second leakage state.

Preferably, when it is determined that the leakage state is the second leakage state, the analysis management device may transmit a leakage notification signal to notify that the hazardous chemical substance is generated in the detection area.

Preferably, the analysis management device may determine whether the leakage state is a third leakage state in which leakage occurs or leakage may not be alarmed or notified even if leakage occurs, based on the sensor characteristic information and the accumulated leakage amount information. .

According to the present invention, when a leak of hazardous chemicals occurs, it is possible to promptly deal with accidents caused by the leakage of hazardous chemicals by notifying the occurrence of leakage, and leaking of hazardous chemicals by giving an advance warning of leakage of hazardous chemicals. can prevent

1 is a diagram illustrating a system for warning and notifying leakage of hazardous chemicals according to various embodiments of the present disclosure.
2 is a diagram illustrating a connection relationship between components of a system for warning and notifying leakage of hazardous chemicals according to various embodiments of the present disclosure.
3 is a diagram for explaining a process of performing a leak alarm and a leak notification in a hazardous chemical leakage alarm and notification system according to various embodiments of the present disclosure.
FIG. 4 is a diagram for explaining a process of performing an inspection using information on a cumulative leakage amount increase rate in a hazardous chemical leakage alarm and notification system according to various embodiments of the present disclosure.
5 is a diagram for explaining a process of performing an inspection using accumulated leakage amount information in a hazardous chemical leakage alarm and notification system according to various embodiments of the present disclosure.
Figure 6 is a block diagram showing the components of the control device of the leakage alarm and notification system of hazardous chemicals according to an embodiment of the present invention.
7 is a block diagram showing the components of the monitoring device of the hazardous chemical leakage alarm and notification system according to an embodiment of the present invention.
8 is a block diagram showing components of an analysis management device of a hazardous chemical leakage alarm and notification system according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that this is not intended to limit the present invention to specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments of the present invention. In connection with the description of the drawings, like reference numerals may be used for like elements.

In this document, expressions such as "has", "may have", "includes", or "may include" refer to the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In this document, expressions such as "A or B", "at least one of A and/and B", or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" used in this document may modify various components, regardless of order and/or importance, and refer to a component as It is used only to distinguish it from other components and does not limit the corresponding components. For example, the manager device and the operator device may indicate different user devices regardless of order or importance. For example, without departing from the scope of rights described in this document, a first element may be called a second element, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or connected through another component (eg, a third component). On the other hand, when an element (e.g., a first element) is referred to as being “directly connected” or “directly connected” to another element (e.g., a second element), that element and the above It may be understood that other components (eg, a third component) do not exist between the other components.

As used in this document, the expression "configured to" means, depending on the situation, e.g., "suitable for", "having the capacity to" )", "designed to", "adapted to", "made to", or "capable of" . The term "configured (or set) to" may not necessarily mean only "specifically designed to" hardware. Instead, in some contexts, the phrase "a device configured to" may mean that the device is "capable of" in conjunction with other devices or components. For example, the phrase "a processor configured (or set) to perform A, B, and C" may include a dedicated processor (e.g., embedded processor) to perform those operations, or by executing one or more software programs stored in memory. , may mean a general-purpose processor (eg, CPU or application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field described in this document. Among the terms used in this document, terms defined in general dictionaries may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in this document, in an ideal or excessively formal meaning. not interpreted In some cases, even terms defined in this document cannot be interpreted to exclude the embodiments of this document.

1 is a diagram showing a leakage alarm and notification system of hazardous chemicals according to various embodiments of the present invention, and FIG. 2 is a connection between components of the leakage alarm and notification system of hazardous chemicals according to various embodiments of the present invention. FIG. 3 is a diagram for explaining a process of performing a leak alarm and a leak notification in a hazardous chemical leakage alarm and notification system according to various embodiments of the present disclosure.

Referring to FIGS. 1 to 3 , the hazardous chemical leakage warning and notification system may include a sensor 100 , a control device 200 , a monitoring device 300 and an analysis management device 400 .

The sensor 100 may be disposed in a sensing area, which is a peripheral area of a facility containing hazardous chemicals, to measure a leak amount of hazardous chemicals. In addition, the sensor 100 may output a cumulative leakage amount signal indicating an accumulated leakage amount of hazardous chemicals leaked into the sensing area from the point of time when the sensor 100 is disposed in the sensing area.

Specifically, the sensor 100 may perform a chemical reaction with hazardous chemicals, and a resistance value may change due to the chemical reaction. In addition, the sensor 100 may accumulate hazardous chemicals inside the structure of the sensor 100 due to a chemical reaction with the hazardous chemicals.

Due to this, the resistance value of the sensor 100 may increase in proportion to the total leakage amount of the hazardous chemicals leaked into the sensing area.

For example, when the resistance value of the sensor 100 is 10 ohms in a state where no hazardous chemicals are leaked and no chemical reaction is performed with the hazardous chemicals, a certain amount of hazardous chemicals leaks and the resistance value is changed to 15 ohms. can

Thereafter, the sensor 100 may maintain a resistance value of 15 ohms even if no harmful chemicals are leaked.

That is, after the sensor 100 is disposed in the sensing area, the resistance value may increase in proportion to the cumulative leak amount of the leaked hazardous chemical substance.

The sensor 100 may receive current from the control device 200 and output the received current to the control device 200 again.

Here, the current output from the sensor 100 to the control device 200 may be a cumulative leak amount signal indicating an accumulated leak amount of hazardous chemicals leaked in the sensing area.

At this time, the current value of the current output to the control device 200 may be changed corresponding to the resistance value of the sensor 100 .

That is, the control device 200 may receive the current input from the sensor 100 as an accumulated leakage signal.

The control device 200 may convert the cumulative leak amount signal into accumulated leak amount information, and determine whether hazardous chemicals are leaked based on the converted accumulated leak amount information.

Here, the cumulative leakage amount information may be information obtained by converting an accumulated leakage amount signal, which is a current signal, into a resistance value of the sensor 100 .

The control device 200 may transmit the converted cumulative leakage amount information to the monitoring device 300 .

The monitoring device 300 may receive the accumulated leak information from the control device 200 and output the accumulated leak information to the outside based on the accumulated leak information.

At this time, the monitoring device 300 may receive cumulative leakage amount information from each of the plurality of control devices 200, match each accumulated leak amount information with control device identification information indicating each of the plurality of control devices 200, and store them.

On the other hand, the monitoring device 300 may transmit the cumulative leakage amount information matched with the control device identification information to the analysis management device 400 .

The analysis management device 400 may receive the cumulative leak amount information, manage the leakage of hazardous chemicals in the sensing area corresponding to the accumulated leak amount information, and manage the sensors 100 disposed in each sensing area.

Specifically, the analysis management device 400 determines the leakage state of the hazardous chemical in the detection area based on the sensor characteristic information of the sensor corresponding to the detection area and the accumulated leakage amount information converted from the accumulated leakage amount signal. It is possible to determine one or more of whether it is a first leakage state (t1') that should alert and whether the leakage state is a second leakage state (t3') that should inform that leakage has occurred.

FIG. 4 is a diagram for explaining a process of performing an inspection using information on an increase in the cumulative leakage amount in a hazardous chemical leakage alarm and notification system according to various embodiments of the present invention, and FIG. 5 is a diagram for various embodiments of the present invention. It is a diagram for explaining a process of performing an inspection using the cumulative leakage amount information in the leakage alarm and notification system of hazardous chemicals according to FIG.

4 and 5, the analysis management device 400 calculates the cumulative leak rate increase rate of the accumulated leak rate based on the cumulative leak rate information and generates it as accumulated leak rate increase rate information, and the accumulated leak rate increase rate information generates an alarm. When the reference increase rate is exceeded, it may be determined that the leakage state is the first leakage state t1'.

When it is determined that the leakage state is the first leakage state t1', the analysis management device 400 may transmit a leakage alarm signal to prevent leakage of the hazardous chemical substance in the detection area.

At this time, the analysis management device 400 may transmit a leakage alarm signal to a manager terminal of a manager managing the detection area.

That is, in the analysis management device 400, when the leak of hazardous chemicals is not leaky enough to cause a leak accident, but a small amount of leak occurs due to a problem with a facility disposed in the detection area, the leak state is determined as above. It is determined that it is 1 leak state (t1'), and a leak alarm signal may be transmitted.

Meanwhile, the analysis management device 400 may determine that the leakage state is the second leakage state t2 ′ when the cumulative leakage amount increase rate information exceeds a notification reference increase rate.

Then, when it is determined that the leakage state is the second leakage state t2', the analysis management device 400 may transmit a leakage notification signal to notify that the hazardous chemical substance is generated in the detection area.

At this time, the analysis management device 400 may transmit a leak notification signal to a manager terminal of a manager managing the detection area.

That is, if the leakage of the hazardous chemical is sufficient to cause a leakage accident, the analysis management device 400 may determine that the leakage state is the first leakage state t1' and transmit a leakage notification signal. .

Meanwhile, the analysis management device 400 may set the warning standard increase rate higher than the warning standard increase rate.

Meanwhile, the above-described sensor characteristic information may be a resistance value characteristic of the sensor 100 according to the concentration of the hazardous chemical in the detection area when the hazardous chemical is leaked.

The analysis management device 400 may determine whether or not the leakage state is a third leakage state in which leakage occurs or a leakage may not be alarmed or not notified even if leakage occurs, based on the sensor characteristic information and the accumulated leakage amount information.

Specifically, the analysis management device 400 may determine that the leakage state is the third leakage state when the cumulative leakage amount increase rate information is less than the notification reference increase rate.

When it is determined that the leak state is the third leak state, the analysis management device 400 may monitor only the leak state without transmitting the leak alarm signal and the leak notification signal.

Meanwhile, the analysis management device 400 may perform maintenance, repair, and management of the sensor 100, the control device 200, and the monitoring device 300 disposed in the sensing area.

Specifically, the analysis management device 400 may generate inspection schedule information based on the sensor characteristic information and the cumulative leak amount information.

More specifically, the analysis management device 400 generates a regular inspection time point at which the cumulative leakage amount information is expected to reach the regular exchange reference leakage amount information as regular inspection schedule information based on the sensor characteristic information and the accumulated leakage amount information, It may be included in the inspection schedule information.

At this time, the analysis management device 400 calculates the average accumulated leakage amount information by using the accumulated leakage amount information obtained during the initial setting period from the time when the sensor 100 is disposed in the sensing area, and the unique maximum accumulated leakage amount of the sensor 100 The timing of regular inspection can be estimated using the information and the average cumulative leakage amount information.

The analysis management device 400 may divide the unique maximum accumulated leak amount information by the average accumulated leak amount information to calculate the accumulated leak amount arrival period, and sum up the accumulated leakage amount arrival period at the current point in time to estimate the periodic inspection time point.

That is, when the first leakage state or the third leakage state, which is a state in which leakage occurs to a degree that no leakage accident occurs, is maintained for a long time, the analysis management device 400 accumulates hazardous chemicals associated with the sensor 100. Due to this, it is possible to estimate a time point at which the sensor 100 needs to be replaced regularly as the above-described periodic inspection time point.

Meanwhile, when it is determined that the leakage state is the second leakage state, the analysis management device 400 generates a preset emergency inspection section as emergency inspection schedule information from the time point when the cumulative leakage amount increase rate information exceeds the warning reference increase rate, and the inspection schedule information can be included.

Here, the preset emergency inspection period may be 12 hours.

That is, the analysis management device 400 starts from the point at which the cumulative leak amount increase rate information exceeds the warning standard increase rate so that an emergency inspection is performed when a second leak state, which is a leak state requiring correction of the leak accident, occurs due to the occurrence of the leak. A preset emergency inspection section can be set.

Through this, the analysis management device 400 may generate inspection schedule information including regular inspection schedule information and emergency inspection schedule information.

Meanwhile, the analysis management device 400 may transmit the generated inspection schedule information to the inspector terminal of the inspector.

Here, the inspector may be a subject who performs maintenance, repair, and management of the sensor 100, the control device 200, and the monitoring device 300 disposed in the sensing area.

Meanwhile, the analysis management device 400 may include an analysis management device that calculates management fee information based on sensor characteristic information and the cumulative leakage amount information.

Specifically, the analysis management device 400 extracts sensor price information from the sensor characteristic information, calculates sensor replacement number information for a preset management period based on the cumulative leakage amount information, and calculates the sensor price information and the sensor price information. The management fee information may be calculated based on the number of replacement information.

Here, the sensor characteristic information may further include sensor price information of the corresponding sensor 100 and may further include unique maximum cumulative leakage amount information.

The analysis management device 400 may divide the unique maximum accumulated leak amount information by the average accumulated leak amount information to calculate the accumulated leak amount arrival period, and divide the preset management period by the accumulated leakage amount reached period to calculate sensor replacement number information.

That is, when the first leakage state or the third leakage state, which is a state in which leakage occurs to a degree that no leakage accident occurs, is maintained for a long time, the analysis management device 400 accumulates hazardous chemicals associated with the sensor 100. Therefore, the number of sensors to be replaced during a preset management period may be calculated as sensor replacement number information.

Thereafter, the analysis management device 400 may calculate management fee information by multiplying cost per replacement information obtained by adding sensor replacement labor cost information and sensor price information by sensor replacement number information.

Meanwhile, the analysis management device 400 according to another embodiment may correct the management fee information based on past hazardous chemical substance leakage history information in the detection area.

Specifically, the analysis management device 400 generates information on the number of leakage accidents per unit period based on the hazardous chemical leakage history information indicating the hazardous chemical leakage history occurring in the corresponding detection area, and sets a management period and unit in advance. Management fee information may be corrected based on information on the number of leakage accidents per period.

More specifically, the analysis management device 400 divides the preset management period by information on the number of leakage accidents per unit period to calculate the estimated number of leakage accidents, and increases the management fee information as the number of times indicated by the estimated number of leakage accidents increases. can be corrected.

Meanwhile, the analysis management device 400 may correct management fee information based on hazard level information of hazardous chemicals detected by a corresponding sensor.

Here, the hazard level information indicates the degree of harm to the human body, and may be information indicating that the higher the degree of harm, the more harmful to the human body.

Specifically, the analysis management device 400 may correct the management fee information by adding a premium to the higher the hazard level indicated by the hazard information of the hazardous chemical substance.

Through this, the analysis management device 400 can provide a revenue model for management fees provided to inspectors who maintain, repair, and manage the hazardous chemical sensor 100, control device 200, and monitoring device 300. there is.

6 is a block diagram showing components of a space terminal of a hazardous chemical leakage alarm and notification system according to an embodiment of the present invention, and FIG. 7 is a hazardous chemical leakage alarm according to an embodiment of the present invention. and a block diagram showing components of an investment terminal of a notification system, and FIG. 8 is a block diagram showing components of an enterprise terminal of a hazardous chemical leakage warning and notification system according to an embodiment of the present invention.

6 to 8, the control device 200, the monitoring device 300, and the analysis management device 400 detect leakage of hazardous chemicals and mutually exchange information necessary for maintaining, repairing, and managing each system. can transmit and receive.

As shown in FIG. 6 , the control device 200 may include an input unit 210, an output unit 220, a storage unit 230, and a processor 240.

The input unit 210 may receive current (accumulated leak amount signal) output from the sensor 100, and the output unit 220 may output accumulated leak amount information converted from the accumulated leak amount signal.

The processor 240 may control operations of the input unit 210 , the output unit 220 , and the storage unit 230 .

The processor 240 may include one or more cores (not shown) and a graphic processing unit (not shown) and/or a connection path (eg, a bus) for transmitting and receiving signals to and from other components. can

The processor 240 according to an embodiment may be configured to perform the operation of the control device 200 by executing one or more instructions stored in the storage unit 230 .

The storage unit 230 may store programs (one or more instructions) for processing and control of the processor 240 . Programs stored in the storage unit 230 may be divided into a plurality of modules according to functions.

Each of the monitoring device 300 and the analysis management device 400 includes input units 310 and 410, display units 320 and 420, communication units 330 and 430, processors 340 and 440, and storage units 350 and 450. can include

The input units 310 and 410 may receive various types of information through a touch screen or an input interface coupled to the display units 320 and 420 . To this end, the display unit 320 or 420 may display a plurality of input areas on the screen according to the control of the processor 340 or 440 .

The communication units 330 and 430 may be connected to a communication network and perform communication using universal communication. To this end, the communication units 330 and 430 may include a general-purpose communication module that performs general-purpose communication. Here, general-purpose communication is communication using an Internet network or a cellular communication protocol, for example, LTE (Long-Term Evolution), LTE-A (LTE Advanced), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), At least one of Universal Mobile Telecommunications System (UMTS), Wireless Broadband (WiBro), and Global System for Mobile Communications (GSM) may be used.

Specifically, the communication units 330 and 430 may transmit and receive various information used for detection and management of hazardous chemicals, such as cumulative leakage amount information and cumulative leakage amount increase rate information.

The processors 340 and 440 may control operations of the input units 310 and 410, the display units 320 and 420, the communication units 330 and 430, and the storage units 350 and 450.

The processors 340 and 440 use one or more cores (not shown) and a graphic processing unit (not shown) and/or a connection path (eg, a bus) for transmitting and receiving signals to and from other components. can include

The processors 340 and 440 according to an embodiment may be configured to operate the monitoring device 300 and the analysis management device 400 by executing one or more instructions stored in the storage units 350 and 450.

The storage units 350 and 450 may store programs (one or more instructions) for processing and control of the processors 340 and 440 . Programs stored in the storage units 350 and 450 may be divided into a plurality of modules according to functions.

So far, the present invention has been mainly looked at with respect to preferred embodiments. Those skilled in the art to which the present invention belongs will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from a descriptive point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope should be construed as being included in the present invention.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those skilled in the art to which the present invention belongs Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

100: sensor
200: control device
300: monitoring device
400: analysis management device

Claims (6)

a sensor disposed in a sensing area where hazardous chemicals may leak, and outputting a cumulative leakage amount signal indicating an accumulated leakage amount of the hazardous chemicals; and
Whether the leakage state of the hazardous chemical in the detection region is a first leakage state in which leakage should be alarmed based on the sensor characteristic information of the sensor corresponding to the detection region and the accumulated leakage amount information converted from the accumulated leakage amount signal And an analysis management device for determining at least one of whether the leakage state is a second leakage state that should inform that leakage has occurred;
The sensor
A chemical reaction is performed with the hazardous chemical substance leaked into the sensing region, the resistance value is increased in proportion to the cumulative leakage amount of the hazardous chemical substance leaked into the sensing region due to the chemical reaction, and the resistance value is maintained when the accumulated leakage amount is maintained. value is maintained, outputting a current that is the cumulative leakage amount signal, the current value of the current corresponding to the resistance value,
The sensor characteristic information is
It is a resistance value characteristic of the sensor according to the concentration of the hazardous chemical in the sensing area when the hazardous chemical is leaked,
The analysis management device
After calculating the cumulative leak rate increase rate of the accumulated leak rate based on the accumulated leak rate information, the accumulated leak rate increase rate information is generated, and when the cumulative leak rate increase rate information exceeds the alarm reference increase rate, the leak state is considered to be the first leak state. and when it is determined that the leakage state is the first leakage state, transmitting a leakage alarm signal to prevent leakage of the hazardous chemical substance in the sensing region;
The analysis management device
After calculating the cumulative leak rate increase rate of the accumulated leak rate based on the cumulative leak rate information, it is generated as cumulative leak rate increase rate information, and when the cumulative leak rate increase rate information exceeds the notification reference increase rate, the leak state is considered to be the second leak state. and when it is determined that the leakage state is the second leakage state, transmitting a leakage notification signal to notify that the hazardous chemical substance is generated in the sensing region;
The analysis management device
Sensor price information is extracted from the sensor characteristic information, sensor replacement number information is calculated for a preset management period based on the accumulated leakage information, and management fee information is calculated based on the sensor price information and the sensor replacement number information. calculate,
The analysis management device
Based on the sensor characteristic information and the cumulative leakage amount information, it is characterized in that it is determined whether the leakage state is a third leakage state in which a leakage occurs or a leakage may not be alarmed or notified even if a leakage occurs
Hazardous chemical leakage alarm and notification system. delete delete delete delete delete

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