KR102646866B1 - Surveillance apparatus using sensor - Google Patents

Abstract

The present invention selects the monitoring target and monitoring area using the user's selection information, registers a gas detection element corresponding to the gas monitoring purpose, sets a target gas using the selected gas detection element, and detects gas among the gases that can be generated from the monitoring target. Disclosed is a monitoring device using a sensor that includes a control unit that monitors a target gas associated with a sensing element.

Description

Surveillance device using sensors{SURVEILLANCE APPARATUS USING SENSOR}

The present invention relates to a device for monitoring gas of a monitoring object using a sensor, and more specifically, to a technology for monitoring target gas related to a gas detection element among gases generated from a monitoring object.

<About the characteristics of gas sensors>

A gas sensor is a device that detects a specific gas component contained in a gas and converts it into an appropriate electrical signal depending on its concentration. Gas sensors are classified into electrochemical, contact combustion, semiconductor, and photoionization sensors depending on their operation method. Patent documents described as prior art relate to semiconductor gas sensors.

Gas sensors are manufactured for the purpose of detecting specific gases. However, gas sensors only have good sensitivity to specific gases, but also detect other gases at the same time, can only measure overall gas concentration regardless of the type of incoming gas, and have a problem in that selectivity for specific gases is reduced.

<About gas concentration of combustion target>

If the insulating material included in the combustion target or monitoring target is heated at a temperature below the flash point or ignition point, it is incompletely burned and toxic gas is generated, and if it is heated at a temperature exceeding the flash point or ignition point, smoke is generated and spreads into a fire.

The toxic gas generated by incomplete combustion may have a very low concentration, but it is a suitable gas as an indicator for detecting fire signs. Therefore, there is a need for gas concentration standards for fire signs that can distinguish warning levels of fire signs according to trace gas concentrations.

<About gases generated in the surveillance area>

Gas sensors are used in a variety of fields, such as detecting air pollutants in the atmospheric environment, detecting exhaust gases in transportation devices, detecting human respiration in medicine, detecting volatile organic compounds in food, detecting biochemical gases in the military, and detecting combustible gases in disaster prevention. Each field has a specific surveillance area, and gas sensors are installed in the surveillance area to suit the purpose or purpose of detection.

However, in some monitoring areas, gases other than the specific gas suitable for the purpose or purpose of detection are generated, so it is difficult for the gas sensor to detect gases other than the specific gas and accurately determine the concentration of the specific gas.

For example, in homes equipped with outlets or power strips containing insulation, gas sensors are installed to detect gases generated by deterioration of insulation or gases related to air quality. However, gas sensors installed in homes detect not only gases emitted from insulating materials or air quality, but also gases emitted from cosmetics such as skin and perfume, electronic devices that generate heat, furniture, solvents, or paints, making it difficult to accurately determine the concentration of a specific gas. .

<About gas characteristics of insulating materials>

Insulating materials used in electrical devices are wires and conductor terminal blocks. A wire is an insulating covering material that insulates and surrounds a current-carrying conductor, and a tube is an insulating covering material that easily insulates conductors, including terminals, which are crimp terminals made of copper, to connect the end of the wire to the conductor supplying electricity. A terminal block is a crimp terminal. It is an insulating covering material that secures conductors connected using terminals.

Wires, tubes, and terminal blocks are insulation materials that insulate each other, but the components that make up the materials are different. Because wires, tubes, and terminal blocks have different components or types, the gases generated by deterioration may be different. Additionally, since wires, tubes, and terminal blocks have different components, the gases generated may be completely different depending on the temperature or degree of deterioration.

In the past, gas generated by the deterioration of the insulator covering the conductor of an electrical device was detected and the concentration of the gas was measured to determine fire signs. However, conventional gas sensors react with many gases such as carbon monoxide, carbon dioxide, hydrogen chloride, benzene, xylene, toluene, formaldehyde, and alcohol, which are generated by deterioration of insulating materials, making it difficult to determine the concentration of a specific gas.

In the past, fire signs were determined by detecting specific gases generated by deterioration of insulating materials. However, conventionally, the characteristics of gases that occur depending on the type or degree of deterioration of the insulating material are not taken into consideration, so the criteria for selecting specific gases that show fire signs are ambiguous or have low reliability.

<About gases generated from conductors>

Conductors supply electricity in electrical devices, can be covered with insulating material, can be corroded by electrical heat and moisture, and gas is generated by corrosion. Corrosion refers to the action of oxidation, carbonization, nitridation, sulfurization or halogenation. Gas generated by corrosion of conductors can be used as a gas to determine fire signs. However, there is a problem in the prior art that there is no technology for detecting fire signs by using both gas generated by corrosion of conductors and gas generated by deterioration of insulators.

<About detection of specific gas>

Conventionally, fire signs were determined based on the gas concentration measured by a gas sensor with good sensitivity to specific gases. However, in the past, even if the sensitivity to a specific gas is good, other gases are also detected at the same time, and the gas concentration measured for other gases other than the specific gas is also used as is, so there is a problem in that the accuracy of the gas concentration for the specific gas is reduced.

Conventionally, attempts were made to reduce gas concentration errors by using two or more sensors of the same type, but there is still a problem in that it is difficult to calculate the gas concentration for a specific gas.

Conventionally, in addition to the specific gas in the monitoring area, non-specific gases and gas characteristics that occur depending on the type or degree of deterioration of the insulating material are not considered, so there is a problem of not being able to use a sensor that detects non-specific gases to increase the selectivity of specific gases. there is.

<Regarding general use of gas sensors>

Conventionally, different gas sensors must be installed because the environments of surveillance areas such as homes or industries are different. In addition, conventionally, gas sensors that detect the same specific gas can be used in each surveillance area, but since the detailed specifications of the gas sensor required by each surveillance area may vary, it is difficult to universally use the gas sensor for each surveillance area.

Korean Patent No. 10-1739022

In order to solve the above problem, the present invention selects the monitoring object and monitoring area with the user's selection information, registers the gas sensing element corresponding to the gas monitoring purpose, sets the target gas using the selected gas sensing element, and monitors the monitoring target. We want to monitor the target gas related to the gas detection element among the gases that can be generated.

A monitoring device using a sensor according to an embodiment of the present invention for the above problem to be solved includes a sensor unit 110 consisting of a plurality of sensors; The sensor unit, a storage unit 220 that stores gas detection elements including gas characteristics of the monitoring target and monitoring area, and a selection of the gas detection elements are inputted, a gas monitoring purpose and target gas are set, and the set target gas is inputted. It is characterized by including a monitoring control unit 240.

The monitoring device using a sensor according to an embodiment of the present invention may be characterized in that it provides a plurality of gas monitoring purposes for each monitoring area and allows universal use of the sensor unit even if the monitoring area or gas monitoring purpose is changed.

The sensor unit includes a target gas sensor 111 capable of detecting the target gas and a selectivity increasing sensor 112 capable of detecting a non-target gas, and the selectivity increasing sensor reacts to the target gas and detects the non-target gas. It can detect gas and can be used for gas concentration correction and backup purposes.

The monitoring targets include metals and non-metals, and the control unit may be configured to set a target gas for combustion among gases generated by corrosion of metals and gases generated by incomplete combustion of non-metals.

It may be characterized by running an application that includes a service for setting a target gas and a service for calculating the concentration of the target gas in response to the selection of the gas detection element.

The present invention provides a plurality of gas monitoring purposes for each monitoring area and provides user-customized selection of gas sensing elements, thereby providing universal use of the sensor unit even if the monitoring area or gas monitoring purpose changes.

Figure 1 is a block diagram showing a target gas monitoring system according to an embodiment of the present invention.
Figure 2 is a block diagram showing a target gas monitoring system according to another embodiment of the present invention.
Figure 3 is a block diagram showing an integrated target gas monitoring device according to an embodiment of the present invention.
Figure 4 is a block diagram showing an integrated target gas monitoring device according to another embodiment of the present invention.
Figure 5 is a block diagram showing a separate target gas monitoring device according to an embodiment of the present invention.
Figure 6 is a block diagram showing a target gas detection device according to an embodiment of the present invention.
Figure 7 is an example showing the components of a combustion target in a hierarchical relationship.
Figure 8 is an example showing the types and characteristics of gas sensing elements.
Figure 9 is an example showing the analysis results of thermal desorption gas chromatography on an electric wire at 80°C.
Figure 10 is an example showing the analysis results of thermal desorption gas chromatography on an electric wire at 100°C.
Figure 11 is an example showing the output characteristics of hydrogen sensors with different resolutions.
Figure 12 is a block diagram showing a sensor unit comprised of a selective sensor according to an embodiment of the present invention.
Figure 13 is a block diagram showing a sensor unit composed of a high-resolution sensor according to an embodiment of the present invention.
Figure 14 is a block diagram showing a separate target gas monitoring device according to an embodiment of the present invention.
Figure 15 is a block diagram showing an integrated target gas monitoring device according to an embodiment of the present invention.
FIG. 16 is a block diagram showing the control unit of FIG. 14 or FIG. 15 in detail.
Figure 17 is an example of a screen for registering a combustion target.
Figure 18 is an example of a screen for registering a surveillance area.
Figure 19 shows an example of determining the presence or absence of a target gas, calculating concentration, and determining a warning level using a sensor unit composed of a selective sensor.
Figure 20 shows an example of determining the presence or absence of a target gas, calculating concentration, and determining a warning level using a sensor unit composed of a high-resolution sensor.
Figure 21 is a block diagram showing a target gas service providing server according to an embodiment of the present invention.
Figure 22 is a flowchart showing a method of providing target gas service according to an embodiment of the present invention.
Figure 23 is a flowchart showing a target gas monitoring method according to an embodiment of the present invention.
Figure 24 is a flowchart showing a target gas monitoring method according to another embodiment of the present invention.
Figure 25 is a flowchart showing a target gas detection method according to an embodiment of the present invention.
Figure 26 is a flowchart showing a target gas detection method according to another embodiment of the present invention.
Figure 27 shows a target gas monitoring device installed in the gas pipe of a gas range according to an embodiment of the present invention.
Figure 28 shows a target gas monitoring device installed in the gas pipe of a gas range according to another embodiment of the present invention.
Figure 29 shows a target gas monitoring device installed on top of the insulating material of the conductor connection portion according to an embodiment of the present invention.
Figure 30 shows a target gas monitoring device fixed to a support member according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

Figure 1 is a block diagram showing a target gas monitoring system according to an embodiment of the present invention. The target gas monitoring system 10 includes a target gas detection device 100, a target gas monitoring device 200, and a target gas service providing server. Includes 300.

The target gas detection device 100 detects gas generated in the surveillance area, and the target gas monitoring device 200 analyzes the sensor data generated by the target gas detection device 100 to determine the target gas among the gases generated in the surveillance area. Calculates the concentration, and the target gas service providing server 300 generates information necessary for analysis of sensor data and provides it to the target gas monitoring device 200 or the app store 400. The app store 400 can receive an application for target gas monitoring from the target gas service providing server 300 and provide the application to the target gas monitoring device 200 or a smartphone (not shown).

Figure 2 is a block diagram showing a target gas monitoring system according to another embodiment of the present invention. The target gas detection device 100 and the target gas monitoring device 200 are manufactured separately or integrated and are located in the monitoring area. . If the target gas monitoring device 200 is manufactured as a separate type, it can be formed at a location spaced a predetermined distance away from the monitoring area. The monitoring area is where the combustion target is located, and the combustion target is an object that generates combustible gas, an object that generates gas by incomplete combustion (deterioration), or an object that generates gas by corrosion. The target gas service providing server 300 is located in a remote area. A remote area is an area separated by a certain distance from the surveillance area.

Figure 3 is a block diagram showing an integrated target gas monitoring device according to an embodiment of the present invention. When the target gas monitoring device 200 is manufactured as an integrated device, it includes the sensor unit 110 of the target gas detecting device 100. do.

The integrated target gas monitoring device 200 can be formed in a short-distance monitoring area. The surveillance area can be divided into multiple areas. The monitoring area may include a short-distance monitoring area adjacent to the target gas monitoring device 200 and a remote monitoring area spaced apart from the target gas monitoring device 200 by a predetermined distance.

The target gas detection device 100 is formed in the gas flow path space for gas detection, and gas lighter than air existing in the short-distance monitoring area automatically flows into the gas flow space and can detect gas in the short-distance monitoring area.

The target gas monitoring device 200 can introduce gas generated in a remote monitoring area into the gas flow path space using a control means for controlling the pressure of gas or air, and can detect gas in the remote monitoring area.

The present invention controls the opening and closing of a passage through which gas flows in a short-distance monitoring area, controls the pressure of gas or air flowing in from a long-distance monitoring area, and provides a change in the gas atmosphere in the gas passage space, and provides one target gas monitoring. The device 100 can detect gas in multiple surveillance areas, and the quantity of parts for gas detection can be reduced.

Figure 4 is a block diagram showing an integrated target gas monitoring device according to another embodiment of the present invention, and a target gas sensing device 100 may be formed in a remote monitoring area. The target gas monitoring device 200 and the target gas detection device 100 communicate through wired or wireless communication. Wireless communication may be Bluetooth, Wi-Fi, infrared, or sensor network communication, and may be a variety of communications, but is not limited thereto.

Figure 5 is a block diagram showing a separate target gas monitoring device according to an embodiment of the present invention. The target gas sensing device 100 can be formed for each monitoring area, and the target gas monitoring device 200 is located in the monitoring area or It may be formed at a location spaced apart from the target gas detection device 100 by a predetermined distance. The target gas detection device 100 and the target gas monitoring device 200 communicate through wired or wireless communication. For example, the target gas monitoring device 200 receives sensor data from the target gas monitoring device 200 through IoT communication and provides various information using the sensor data to the user's terminal.

Figure 6 is a block diagram showing a target gas detection device according to an embodiment of the present invention. The target gas detection device 100 includes a sensor unit 110 and a wired/wireless connection unit 120. The sensor unit 110 includes a plurality of sensors for calculating the concentration of target gas among gases generated from combustion objects located in the monitoring area.

The sensor is a gas sensor that detects gas. Additionally, in the present invention, the sensor may include the function of a temperature sensor or a humidity sensor, and may include the functions of various sensors for detecting the environment of the surveillance area, but is not limited to this.

Sensors can be installed in various surveillance areas depending on the purpose of detecting gas. The purpose of detecting gas can be divided into determining fire signs in the surveillance area, measuring air quality, measuring human respiration, detecting biochemical toxic gases, or detecting food gases, and can vary depending on the environment of the surveillance area and the purpose of detection. It is not limited to this.

The surveillance area may be in various environments depending on the purpose of detecting gas. For example, the surveillance area may be a home, office, factory, commercial facility, transmission and distribution facility, gas pressure facility, power generation facility, or energy storage facility such as EES, and may be various areas, but is not limited to these.

Combustion targets and non-combustion targets can be formed in the surveillance area. A combustion target is an object necessary for the purpose of detecting gas, and a non-combustion target is an object unnecessary for the purpose of detecting gas. For example, in a home, combustible objects are objects that can generate gas due to deterioration of insulating materials such as outlets or power strips for the purpose of detecting gas related to fire signs, while non-combustible objects detect gas related to fire signs such as cosmetics or perfume. It is an object that is unnecessary for the purpose.

Figure 7 is an example showing the components of a combustion target in a hierarchical relationship, and the combustion target may include combustible materials, metals, and non-metals. Combustible materials themselves are gases, metals generate gas through combustion reactions of oxidation/reduction, and non-metals generate gas through deterioration, thermal decomposition, or incomplete combustion.

A combustible substance is a substance that burns when mixed with oxygen or air and ignited. Combustible materials are divided into gaseous, liquid, and solid states. For example, the gaseous combustible material is LNG or LPG gas, the liquid combustible material is petroleum, and the solid combustible material is coal.

Metals are subject to corrosion due to combustion reactions caused by oxidation/reduction reactions and may be conductors of electricity, typically copper, iron, or silver. Metals can be corroded by electrical heat and moisture, and gas is generated by corrosion. Corrosion Corrosion means the action of oxidation, carbonization, nitridation, sulfurization or halogenation. Corrosion occurs due to chemical, mechanical or high temperature effects. Gas generated by corrosion of conductors can be used as a gas to determine fire signs. For example, copper, which conducts electricity, reacts with heat and moisture to change into copper oxide, and hydrogen gas is generated during the oxidation process. Hydrogen gas can be used as a gas to determine fire signs.

Non-metals are subject to deterioration, and gas is generated due to deterioration. Deterioration occurs due to chemical, mechanical or high temperature effects. Non-metals are materials that do not have metallic properties, and are typically plastic, cloth, wood, or Styrofoam. Non-metals generate various gases depending on their composition, and the types of gases generated may be different depending on incomplete combustion and complete combustion, and the types of gases generated may vary depending on the degree of incomplete combustion or deterioration. The gas generated by the deterioration of the deterioration object becomes an important gas detection element for determining fire signs.

Figure 8 is an example showing the types and characteristics of a gas detection element. The gas detection element includes a fire symptom element for determining fire signs in relation to a combustion target. The present invention may further include a measurement object in addition to the combustion object, and the measurement object may also include a combustion object corresponding to the purpose of gas detection.

The gas detection element may further include an air quality measurement element for measuring air quality in relation to the measurement object, a respiration measurement element for measuring human respiration, or a biochemical detection element for military use. The gas detection element may further include a toxic gas detection element or a food gas detection element for detecting toxic gas in relation to the measurement target, and may include various detection elements in response to the purpose of gas detection or the gas characteristics of the combustion target. , but is not limited to this. For example, the insulating material included in the combustion object generates gas due to deterioration, and the gas generated by the deterioration of the insulating material also becomes a measurement target for measuring air quality.

The characteristics of the gas detection element may include gas characteristics for each combustion object, gas characteristics for each monitoring area, gas characteristics for each sensor, gas reaction relationships between sensors, and gas matching between combustion objects and sensors.

Since each monitoring area can include not only combustion targets but also non-combustion targets, it can include gas characteristics of non-combustion targets. Each sensor may have unique selectivity or resolution, and may have unique gas characteristics. Each sensor may have characteristics related to gas response relationships such that it responds to a specific gas and does not respond to other specific gases. In the present invention, gas monitoring in the monitoring area is possible only when the gas generated from the combustion target and the gas detectable by the sensor match each other.

The present invention can use a gas detection element to perform at least one of the following: setting a target gas, determining the presence or absence of the target gas, calculating the concentration of the target gas, and determining a warning level according to the purpose of gas detection. Hereinafter, gas characteristics for each combustion target will be described in more detail with reference to FIGS. 9 and 10.

FIG. 9 is an example showing the analysis results of thermal desorption gas chromatography on an electric wire at 80°C, and FIG. 10 is an example showing the analysis results of thermal desorption gas chromatography on an electric wire at 100°C. Thermal desorption gas chromatography analysis of wires analyzes the components of the gas generated by the deterioration of the wire, and is performed under the condition of thermal desorption for 10 minutes at a set deterioration temperature using a pyrolyzer, with 5% disphenly and 95% A capillary column consisting of a stationary phase of % dimethylpolysiloxane is used. Electric wires are insulating coating materials that surround conductors such as metals through which current flows, and are subject to deterioration.

Referring to Figures 9 and 10, propylcyclopentane and toluene were generated in the wire at 80°C and 100°C, and tridecene was generated at 80°C, with the highest amount of toluene gas. According to the analysis results of thermal desorption gas chromatography, it can be confirmed that the gases generated by the deterioration target vary depending on the deterioration temperature. All target gases are generated at different deterioration temperatures, and Toluene with the highest amount of gas may be preferable.

Referring to Figures 9 and 10, the combustion target may have different types of gases generated depending on the heating temperature and time, and may have different concentrations of gases, and the type and concentration of gases generated below the ignition or ignition point may have different characteristics. It can have one characteristic.

Conventionally, it is difficult to accurately determine the signs of an electrical fire in response to various gases generated by the deterioration of the combustion object. The present invention can further improve the accuracy of determining fire signs by setting a target gas that shows fire signs among various gases.

The target gas is a gas related to the gas detection element among the gases generated from the combustion target, and is a gas set to achieve the purpose or effect of gas detection.

The sensor unit 110 may be composed of a plurality of sensors with different selectivity. Different selectivity means that the sensor selectively detects only the desired variable among the various variables input to the sensor. For example, a semiconductor gas sensor can vary the selectivity of the gas adsorbed on the surface by varying the type of metal oxide or by varying the catalyst component or amount even when using the same metal oxide.

The sensor unit 110 may be composed of a plurality of sensors with different resolutions. Different resolutions mean different minimum input increments that the sensor can detect. Hereinafter, the gas response relationship between sensors according to resolution or selectivity will be described in detail with reference to FIG. 11.

Figure 11 is an example showing the output characteristics of hydrogen sensors with different resolutions. The first hydrogen sensor is 0 to 100 [ppm], the second hydrogen sensor is 10 to 1000 [ppm], and the third hydrogen sensor is 1000 to 10000 [ppm]. ] area shows good resolution and large output voltage.

The present invention can improve the selectivity of the target gas by using a plurality of sensors with various resolutions for the target gas. In addition, in the present invention, since the sensor that detects the target gas can detect not only the target gas but also other gases, a plurality of sensors with different selectivity can be used, and the selectivity of the target gas can be increased by using a plurality of sensors with various selectivity. It can be improved further.

Setting the target gas is very important depending on the gas characteristics of the combustion target, such as the purpose of gas detection. For example, in an air quality measurement element, the target gas may be carbon dioxide or carbon monoxide, and in a fire symptom element, the target gas may be toluene rather than carbon dioxide or carbon monoxide.

More specifically, the reason why it is difficult to set carbon dioxide as a target gas for fire signs is because carbon dioxide is generated when the object of deterioration is completely burned, and a fire has already occurred. Additionally, carbon monoxide can be set as a target gas for fire signs, but since it is a gas that can be generated through human respiration or the general environment, it may be difficult to determine fire signs in a home environment. Additionally, the reason why toluene is set as a target gas for fire signs is because it is a gas generated by incomplete combustion or thermal decomposition, and is a gas that is generated depending on the deterioration temperature.

Some of the items subject to combustion include non-toxic insulating materials. The non-toxic insulating material contains pure hydrocarbon-based polymers and, during combustion, produces carbon monoxide, carbon dioxide or water vapor, excluding the toxic gases associated with corrosion of the conductor. At this time, the target gas can be carbon monoxide generated from incomplete combustion, or it can be a gas that can be used in the environment of electric facilities rather than homes. Non-toxic insulating materials, for example, are polyethylene (PE) or polypropylene (PP).

Since the sensor must detect a gas corresponding to the gas characteristics of the combustion target, the target gas must be set according to the gas matching of the combustion target and the sensor. Additionally, in order to increase the selectivity of the target gas, such as resolution or selectivity, the target gas must be set according to the gas characteristics of each sensor. Additionally, since non-combustion targets may be formed in the monitoring area, the target gas must be set according to the gas characteristics of the monitoring area, which are distinct from the gas generated from the non-combustion target.

Referring again to FIG. 6, the wired/wireless connection unit 120 receives sensor configuration information generated by the gas detection element from the target gas monitoring device and drives the sensor included in the sensor configuration information of the sensor unit 110. The target gas detection device 100 may further include a power supply unit 130, and the power supply unit 130 supplies power to the sensor included in the sensor element information. Sensor element information is information about a sensor that detects gas related to a gas detection element.

The sensor unit 110 generates sensor data for determining the presence or absence of the target gas and calculating concentration. The use of sensor data will be explained in the target gas monitoring device 200.

The target gas detection device 100 may further include a detachable part 140 that provides a sensor attachment/detachment function to drive a sensor suitable for gas characteristics for each monitoring area or combustion target. The detachable part 140 may be manufactured in an array form to attach and detach a plurality of sensors.

Figure 12 is a block diagram showing a sensor unit composed of a selectivity sensor according to an embodiment of the present invention. The sensor unit 110 includes a sensor 111 for target gas and a sensor 112 for increasing selectivity. The target gas sensor 111 is capable of detecting the target gas among the gases generated from the combustion target, and the selectivity increase sensor 112 is capable of detecting non-target gases. The sensor 111 for target gas has a very high sensitivity to the target gas, but can also detect other gases, so the sensor 112 for increasing selectivity is used to increase the selectivity of the target gas.

The selectivity increase sensor 112 is a first selectivity increase sensor 112-1 that detects a non-target gas while reacting to a target gas of a set gas concentration, and a first selectivity increase sensor 112-1 that detects a non-target gas while not reacting to the target gas of a set gas concentration. It includes a second selectivity increase sensor 112-2 that detects. The first selectivity increase sensor (112-1) is capable of detecting the target gas and can be used for gas concentration correction and backup of the target gas sensor.

Determining the presence or absence of the target gas and calculating the concentration of the target gas using the target gas sensor 111 and the selectivity increase sensor 112 will be described in the target gas monitoring device 200.

Figure 13 is a block diagram showing a sensor unit composed of sensors with different resolutions according to an embodiment of the present invention. The sensor unit 110 may include a plurality of sensors with different resolutions. The plurality of sensors with different resolutions are a low concentration sensor 110-1, a medium concentration sensor 110-2, and a high concentration sensor 110-3. The low concentration sensor 110-1, the medium concentration sensor 110-2, and the high concentration sensor 110-3 may be included in the target gas sensor 111 or the selectivity increase sensor 112. For a description of resolution, please refer to Figure 11.

Figure 14 is a block diagram showing a separate target gas monitoring device according to an embodiment of the present invention, and the target gas monitoring device 200 can be separated from the target gas detection device 100. The target gas monitoring device 200 may be fixedly installed in a monitoring area or remote area, and may be a portable device such as a smartphone or safety inspection device. The target gas detection device 100 can be fixedly installed in the surveillance area and can be attached and detachable to a portable device.

The target gas monitoring device 200 includes a control unit 240. The control unit 240 sets the setting criteria for setting the target gas, the discrimination criteria for determining the presence or absence of the target gas, and the target gas based on the gas detection element including the gas characteristics of the combustion target and the gas reaction relationship between the sensors of the sensor unit. Concentration calculation standards for concentration calculation are set. Setting standards, discrimination standards, and concentration calculation standards can be set in the control unit 240 or the target gas service providing server 300. The control unit 240 or the target gas service providing server 300 can set a warning level for each concentration of the target gas.

The control unit 240 applies the sensor data measured by the sensor unit 110 to the discrimination criteria and concentration calculation criteria to determine the presence or absence of the target gas and perform the concentration calculation, and determines a warning level according to the concentration of the target gas.

Figure 15 is a block diagram showing a target gas monitoring device manufactured integrally according to an embodiment of the present invention. The target gas monitoring device 200 may be manufactured integrally with the target gas detection device 100. The target gas monitoring device 200 can be fixedly installed in the monitoring area, can be attached and detached to a portable device, and can be separated from the target gas sensing device 100.

FIG. 16 is a block diagram illustrating the control unit of FIG. 14 or FIG. 15 in detail. The control unit 240 may include a registration unit 250, a setting unit 260, and a determination unit 270. The operations of the registration unit 250, the setting unit 260, and the determination unit 270 may be performed independently and may be performed by the target gas service providing server 300.

The registration unit 250 may include a sensor registration unit 251, a combustion target registration unit 252, and a monitoring area registration unit 253 to register gas detection elements.

Figure 17 is an example of a screen for registering a combustion target, and the registration unit 250 can register a combustion target including a combustion target and a measurement target. Figure 17 shows that the user selects the combustion target, selects the combustion target, selects the non-metal corresponding to the combustion target, selects the thermoplastic plastic corresponding to the insulating material among the non-metal, selects the general item from the thermoplastic plastic, and selects the general item. This shows a screen showing toluene as the target gas among the many gases included in the properties.

Basic registration of combustion targets is provided by the target gas service provision server 300. The register 250 can receive the user's selection information and modify the properties of the combustion target.

The register 250 registers the gas or target gas generated by each combustion target because the types or components of the combustion target are different and the gases generated may be completely different depending on the degree of deterioration such as heating temperature and time.

Figure 18 is an example of a screen for registering a monitoring area. The monitoring area is a home, office, factory, commercial facility, transmission and distribution facility, gas pressure facility, power generation facility, or energy storage facility such as EES, and can be various areas. , but is not limited to this.

Figure 18 shows a screen in which the user selects a transmission and distribution facility in the surveillance area, selects a high-voltage switchboard in the transmission and distribution facility, and selects a deterioration target from among objects located in the surveillance area.

The present invention provides a basic gas detection element and provides user-customized selection of gas detection elements, so that the user can easily set the target gas or monitoring area, use the sensor owned by the user for general purposes, and target gas The detection efficiency or selectivity can be improved.

The setting unit 260 includes a target gas setting unit 261 for setting the target gas, a standard setting unit 262 for setting the target gas discrimination standard and concentration calculation standard, and a warning level or warning according to the concentration of the target gas. It may include a warning notification setting unit 263 for setting a notification.

The target gas setting unit 261 sets a gas detection element including the gas characteristics of the combustion target and the gas reaction relationship between the sensors of the sensor unit 110, and sets the gas detection element based on the characteristics of the gas detection element or the correlation between each gas detection element. Set the selected target gas. The gas reaction relationship between sensors is a gas reaction relationship according to resolution or selectivity, with reference to FIGS. 9 to 11.

The target gas setting unit 261 can set the target gas of the deterioration target using section-specific deterioration temperature gas analysis to analyze gas characteristics generated according to the degree of deterioration of the deterioration target included in the combustion target. Deterioration temperature gas analysis for each section analyzes the gas characteristics of the combustion target in response to the heating temperature and time for each set section, and will refer to the descriptions of FIGS. 9 and 10.

The target gas monitoring device 240 may further include a communication unit 210, a storage unit 220, and a display unit 230. The target gas setting unit 261 can be selected by the user. The communication unit 210 or display unit 230 receives selection information for selecting a gas detection element, the target gas setting unit 161 sets the target gas based on the selection information, and the storage unit 220 sets the gas detection element. Or store information about target gas settings.

The control unit 250 can monitor the selected surveillance area by controlling sensors corresponding to automatically selected sensor configuration information extracted by selection information or manually selected sensor configuration information received by user selection.

The standard setting unit 262 can generate a sensor group for the target gas having the detection characteristics of the target gas, and generate a concentration distribution output pattern and a concentration weight for each section with respect to the gas response relationship according to the resolution of the sensor group for the target gas. there is. The concentration distribution output pattern is included in the discrimination criteria, and the concentration weight for each section is included in the concentration calculation criteria. Refer to FIG. 11 for a description of the concentration distribution output pattern and concentration weights for each section.

The standard setting unit 262 may generate a correlation pattern for each gas and a concentration weight for each gas with respect to the gas response relationship according to the selectivity between the sensor for the target gas and the sensor for increasing selectivity. The correlation pattern for each gas is included in the discrimination criteria, and the concentration weight for each gas is included in the concentration calculation criteria. For a description of the correlation pattern for each gas and the concentration weight for each gas, refer to Figures 9 and 10.

The standard setting unit 262 may create a setting standard that excludes gases that can be generated both in combustion targets and non-combustion targets from the target gas. For example, the gas generated by the deterioration of plastic in household combustion targets may contain alcohol, and the gas generated from perfume or cosmetics may also contain alcohol, so the target gas is set to alcohol. If so, it may be difficult to accurately determine the signs of a fire at home.

The present invention can improve the selectivity or detection efficiency of the target gas by excluding gases that can be generated from both combustion and non-combustion targets in each monitoring area from the target gas.

The warning notification setting unit 263 can set a warning level for each concentration of the target gas and set a means of warning notification. In the present invention, the means of notifying a warning may be a display method of LED lighting, a communication method of text transmission, or a sound output method, and the warning can be announced in various ways, but is not limited to this. The warning notification setting unit 263 can store the settings set through the storage unit 220 as warning notification information.

The determination unit 270 applies the sensor data of the sensor unit 110 to the target gas discrimination criteria, concentration calculation criteria, and warning notification information to determine the presence or absence of the target gas, concentration calculation, and warning level determination. It may include a determination unit 271, a concentration determination unit 272, and a warning level determination unit 273.

Figure 19 shows an example of determining the presence or absence of a target gas, calculating concentration, and determining a warning level using a sensor unit composed of a selective sensor. The first sensor may be the sensor 111 for the target gas, and the second sensor may be the target gas sensor 111. may be the first selectivity increasing sensor 112-1, and the third sensor may be the second selectivity increasing sensor 112-2.

The target gas determination unit 271 determines whether a gas exceeding a set concentration has been detected by each of the first to third sensors, or determines whether the target gas exists by referring to the output pattern for each gas. For example, if a gas exceeding a set concentration is detected by the first sensor that detects the target gas, it can be determined that the target gas exists.

If the concentration determination unit 272 detects a gas with a concentration higher than the set concentration only in the first sensor, it can calculate the concentration of the target gas using only the detection value of the first sensor without correction of the concentration, and can calculate the concentration of the target gas using only the detection value of the first sensor without correction of the concentration. When a gas exceeding the concentration is detected, the concentration weight for each gas corresponding to the detection value of the second or third sensor can be applied to the detection value of the first sensor to calculate the concentration of the target gas.

If the target gas determination unit 271 does not detect a concentration higher than the set concentration by the first sensor and detects it by the second sensor and the third sensor, the target gas determination unit 271 determines it as a non-target gas, and the concentration determination unit 272 does not perform the concentration calculation. No.

The first sensor and the second sensor may detect the target gas, but the first sensor may have higher sensitivity or sensitivity to the target gas than the second sensor. The first sensor may detect a low concentration target gas, and the second sensor may not detect a low concentration target gas. The second sensor can detect a target gas of medium or high concentration.

The warning level determination unit 273 can determine the warning level for each step according to the concentration of the target gas, and can determine the warning level for each step depending on whether or not the concentration exceeds the set value in each sensor. For example, the warning level determination unit 273 can determine step-by-step warning levels from 0 to 4 levels. The warning level determination unit 273 can determine the warning level as 0 when the first sensor or each sensor does not detect gas above the set concentration, and sets the warning level to 1 when it detects gas above the set concentration only at the first sensor. If gas is detected at a concentration higher than the set concentration in the first and second sensors or in all sensors, the warning level can be determined as 1 to 4.

Figure 20 shows an example of determining the presence or absence of a target gas, calculating the concentration, and determining the warning level using a sensor unit composed of a high-resolution sensor. The target gas determination unit 271 is used to determine the presence or absence of a target gas in a low-concentration sensor, a mid-concentration sensor, and a high-concentration sensor. You can determine whether a gas exceeding the set concentration has been detected or determine whether the target gas exists by referring to the concentration distribution output pattern.

If the concentration determination unit 272 detects a gas with a concentration higher than the set concentration only from the low concentration sensor, it can calculate the concentration of the target gas using only the detection value (concentration range of section A) of the low concentration sensor without correction of concentration, and calculates the concentration of the target gas using only the low concentration sensor and the medium concentration sensor. When the gas sensor detects a gas with a concentration higher than the set concentration, the concentration of the target gas can be calculated by calculating the concentration weight for each section corresponding to the detection values of the low and medium concentration sensors (concentration range of section A and section B). If the sensor detects a gas with a concentration higher than the set concentration, the concentration of the target gas can be calculated by calculating the concentration weight for each section corresponding to the detection values (concentration range of section B and section C) of the mid-concentration sensor and high-concentration sensor.

The warning level determination unit 273 can determine the warning level as 1 when it is detected only by a low concentration sensor above the set concentration, and can determine the warning level as 1 to 2 when it is detected by a medium concentration sensor. If it is detected by all sensors, the warning level determination unit 273 can determine the warning level as 1. The warning level can be determined as 3 to 4. The concentration determination unit 272 does not perform concentration calculation if all sensors do not detect gas with a concentration higher than the set concentration.

We will explain the technology for monitoring the target gas of the combustion target included in the combustion target. The sensor unit 110 detects gas generated by heat applied to the combustion target, and the control unit 240 sets the target gas of the combustion target using a gas detection element that indicates the gas generated according to the temperature of the heat. The control unit 240 monitors the target gas among the gases generated from the combustion target.

The control unit 240 can set a concentration calculation standard for the target gas using the gas reaction relationship between the sensors of the sensor unit, and can set a warning level of fire signs using the correlation between the heating temperature of the combustion target and the gas concentration.

More specifically, the control unit 240 sets a concentration calculation standard for calculating the concentration of the target gas using a gas detection element including the gas characteristics of the combustion target and the gas reaction relationship between the sensors of the sensor unit. The control unit 240 calculates the concentration of the target gas by applying the sensor data received from the sensor unit 110 to the concentration calculation standard.

Combustion targets may include metals and non-metals. The control unit 240 can set a target gas for combustion among gases generated by corrosion of metals and gases generated by incomplete combustion of non-metals. The present invention can improve selectivity of target gas by using a gas sensing element. Gas detection elements are used to set target gases and increase selectivity.

Figure 21 is a block diagram showing a target gas service providing server according to an embodiment of the present invention. The target gas service providing server 300 includes a generating unit 310. The generator 310 generates a gas detection element including at least one of gas characteristics for each combustion object, gas reaction relationship between sensors, and gas characteristics for each monitoring area, and analyzes the characteristics of the gas detection element or the correlation between each gas detection element. This generates standard information including setting standards for the target gas, discrimination standards for determining the presence or absence of the target gas, and concentration calculation standards for calculating the concentration of the target gas.

The target gas service providing server 300 further includes an extraction unit 320. The extraction unit 320 generates extracted information by extracting reference information corresponding to the combustion target information, sensor information, and monitoring area information received from the target gas monitoring device 200.

The target gas service provision server 300 may further include a provision unit 330 and a management unit 340. The provision unit 330 receives combustion target information, sensor information, and monitoring area information from the target gas monitoring device 200. The provision unit 330 may provide reference information or extracted information to the target gas monitoring device 200. The target gas monitoring device 200 can monitor the target gas using extracted information. The target gas monitoring device 200 may use the extraction unit 320 or may be provided with a function to extract reference information.

The target gas service providing server 300 can provide a service for monitoring the target gas of the combustion target included in the combustion target information using the extracted information. The target gas service providing server 300 applies sensor data generated by the target gas detection device 200 to the extracted information to provide services for determining the presence or absence of the target gas and calculating concentration.

The management unit 240 can manage unique information for each target gas monitoring device 200 and can manage user information corresponding to the indicated gas monitoring device.

The generator 310 may create an application that includes a service for setting the target gas in response to the selection of the gas detection element and a service for determining the presence or absence of the target gas and calculating the concentration using standard information. The provision unit 330 may provide the application to the app store 400 or the target gas monitoring device 200. The application monitors the target gas and transmits warning information to the user's terminal in response to the warning level.

Non-combustion targets can exist in the monitoring area, and the generator 310 can create a setting standard that excludes gases that can be generated from both combustion targets and non-combustion targets from the target gas.

The generation unit 310 generates a sensor group for the target gas having the detection characteristics of the target gas, and generates a concentration distribution output pattern belonging to the discrimination standard and a concentration distribution output pattern belonging to the concentration calculation standard for the gas response relationship according to the resolution of the sensor group for the target gas. It can be created as a concentration weight for each section.

The generator 310 generates a gas reaction relationship according to the selectivity between the target gas sensor 111 and the selectivity increase sensor 112 with a correlation pattern for each gas belonging to the discrimination standard and a concentration weight for each gas belonging to the concentration calculation standard. can be created.

Figure 22 is a flowchart showing a method of providing target gas service according to an embodiment of the present invention. The target gas service providing server 300 stores a gas detection element and uses the stored gas detection element to provide reference information about the target gas. creates .

The target gas service providing server 300 receives user information including combustion target information, sensor information, and monitoring area information from the target gas monitoring device 200, extracts reference information corresponding to the user information, and generates extracted information. and provides extraction information to the target gas monitoring device 200.

The process of generating the extracted information may be performed in the target gas service providing server 300 or the target gas monitoring device 200, but is not limited thereto.

Figure 23 is a flowchart showing a target gas monitoring method according to an embodiment of the present invention. The target gas monitoring device 200 receives reference information from the target gas service providing server 300 and selects information according to the user's input. Receives and sets the gas detection element using the standard information and selection information.

The target gas monitoring device 200 sets the target gas selected based on the characteristics of the gas sensing elements or the correlation between each gas sensing element. The target gas monitoring device 200 uses a gas detection element to set target gas discrimination standards, concentration calculation standards, and warning notification information.

When the target gas setting is completed, the target gas monitoring device 200 generates sensor configuration information and transmits it to the target gas detection device 100, and receives sensor data from the target gas detection device 100.

The target gas monitoring device 200 applies sensor data to target gas discrimination standards, concentration calculation standards, and warning notification information to determine the presence or absence of the target gas, concentration calculation, and warning level determination. The target gas monitoring device 200 performs notification at the determined warning level.

Figure 24 is a flowchart showing a target gas monitoring method according to another embodiment of the present invention, and the target gas monitoring device 200 can operate as a fire sign monitoring device. The fire sign monitoring device uses fire sign elements to set target gases for deterioration and corrosion targets. In addition, the target gas monitoring device 200 uses fire symptom elements to set discrimination standards, concentration calculation standards, and warning levels.

The target gas monitoring device 200 receives sensor data from the target gas detection device 100 to determine whether the target gas exists, calculates the concentration of the target gas if the target gas exists, and detects a fire according to the concentration of the target gas. Determine the warning level of the symptom and provide notification at the determined warning level.

Figure 25 is a flowchart showing a target gas detection method according to an embodiment of the present invention, in which the target gas detection device 100 receives sensor configuration information from the target gas monitoring device 200, and the sensor included in the sensor configuration information operates, generates sensor data based on the driven sensor, and transmits the generated sensor data to the target gas monitoring device 200.

Figure 26 is a flowchart showing a target gas detection method according to another embodiment of the present invention. The target gas detection device 100 includes a sensor 111 for target gas and a sensor 112 for increasing selectivity included in sensor configuration information. Run . The sensor 112 for increasing selectivity includes a first sensor 112-1 for increasing selectivity and a second sensor 112-2 for increasing selectivity.

When a defect or abnormality occurs in the target gas sensor 111, the target gas detection device 100 sets the first selectivity increase sensor 112-1 as the target gas sensor, and the first selectivity increase sensor 112 -1) is used as a backup for the target gas sensor (111).

Figure 27 shows a target gas monitoring device installed in the gas pipe of a gas range according to an embodiment of the present invention, and the gas range may have a gas pipe formed at the top. The target gas monitoring device 200 is manufactured as an integrated unit including the sensor unit 110, and is installed on the valve of the gas pipe. The sensor unit 110 includes a sensor that detects combustible gas and a sensor that detects toxic gas in food.

The combustible gas detection sensor detects gas leaks inside the pipe, and the food toxic gas detection sensor detects gas generated from incomplete combustion of food. Here, the combustion targets are gas pipes and food, and the target gases are gases that may leak from pipes and gases generated from incomplete combustion. The sensor for detecting toxic gases in food may further include a temperature sensor.

Figure 28 shows a target gas monitoring device installed in the gas pipe of a gas range according to another embodiment of the present invention. Recently, in order to prevent the valve from being damaged by the spread of fire in the gas range, it has been installed at a predetermined distance from the gas range. The valve is installed.

The target gas monitoring device 200 provides a sensor attachment/detachment function in consideration of the positional relationship between the gas range and the valve, and also provides a detachment/detachment function that allows the sensor to be attached/detachable to a specific member.

The present invention can monitor a plurality of target gases in one monitoring area as shown in Figure 27, and can monitor different target gases in each area as shown in Figure 28, and can monitor targets for each monitoring area. Gas can be set.

Figure 29 shows a target gas monitoring device installed on the top of the insulating material of the conductor connection portion according to an embodiment of the present invention. The sensor unit 110 installed in the target gas monitoring device 200 detects the sensor unit 110 that is installed on the insulating material due to deterioration of the insulating material. It may include a sensor that detects gas and a sensor that detects gas generated by corrosion of a conductor. The target gas monitoring device 200 detects target gas caused by insulation deterioration and metal corrosion and can detect fire signs before a fire occurs.

The target gas monitoring device 200 can be formed at the top of an electrical facility because it detects gas lighter than air, and when the warning level of the fire sign rises to the stage just before the occurrence of a fire, additional fire extinguishing means for early suppression of the fire are added. It can be included.

As shown in Figure 29, the present invention can monitor a plurality of target gases with different combustion targets in one monitoring area, and can set a plurality of target gases in one monitoring area.

Figure 30 shows a target gas monitoring device fixed to a support member according to an embodiment of the present invention. The target gas monitoring device 200 may further include a main body 201 and a detachable portion 202. The main body 201 housings and surrounds the control unit 240, and the detachable part 202 is formed at a set position of the main body 201 or at the lower part of the main body 201. The detachable part 202 provides a detachable function for the sensor part 110 in consideration of the location of the combustion target. As the detachable part 202 is formed in the lower part of the main body 201, the sensor part 110 can detect gas lighter than naturally flowing air.

The detachable part 202 not only provides a detachable function for the sensor unit 110 but also provides coupling with the support member and can be fixed by the support member. For example, the support member may be the gas valve shown in Figure 27 or Figure 28.

The sensor unit 110 may include a first sensor unit 110a, a second sensor unit 110b, and a third sensor unit 110c, and may be configured in various numbers considering the environment of the surveillance area. It is not limited to this. The sensor unit 110 may include a detachable member 102 for attaching and detaching the sensor in consideration of the environment of the monitoring area or the gas characteristics of the combustion target.

The sensor unit 110 can improve the detection efficiency and selectivity of the target gas by combining various sensors, and an example of combining sensors in an electric facility environment will be described with reference to FIG. 30.

The first sensor unit 110a may include a sensor for detecting a target gas subject to deterioration, and a low-concentration sensor 110-1, a mid-concentration sensor 110-2, and a high-concentration sensor 110- with different resolutions. It can be configured by combining 3). For example, since insulators are made of various materials and generate various gases depending on the degree of deterioration, the first sensor unit may be configured by combining sensors with different resolution or selectivity to improve selectivity.

The second sensor unit 110b may include a sensor for detecting the target gas of the corrosion target. For example, since a conductor such as copper emits hydrogen gas during the process of corrosion due to heat and moisture, the second sensor unit 110b may include a hydrogen sensor. The second sensor unit 110b can be separated from the main body 201 to be installed at the connection point of the conductor, and may include a wired or wireless connection unit 120 for communication with the control unit 240.

The third sensor unit 110c may include an error correction sensor for determining the presence or absence of the target gas and correcting errors in calculating the concentration of the target gas. The error correction sensor may be a temperature sensor or a humidity sensor.

10: Target gas monitoring system 100: Target gas detection device
102: Detachable member 110: Sensor unit
110a: first sensor unit 110b: second sensor unit
110c: Third sensor unit 110-1: Low concentration sensor
110-2: Medium concentration sensor 110-3: High concentration sensor
111: Sensor for target gas 112: Sensor for increasing selectivity
112-1: Sensor for increasing first selectivity 112-2: Sensor for increasing second selectivity
120: wired/wireless connection unit 130: power supply unit
140: Detachable part 200: Target gas monitoring device
201: main body 202: detachable part
210: communication unit 220: storage unit
230: display unit 240: control unit
250: register 251: sensor register
252: Combustion target register 253: Surveillance area register
260: Setting unit 261: Target gas setting unit
262: Standard setting unit 263: Warning notification setting unit
270: Determination unit 271: Target gas determination unit
272: Concentration determination unit 273: Warning level determination unit
300: Target gas service provision server 310: Generation unit
320: extraction unit 330: provision unit
340: Management Department 400: App Store

Claims (5)

A sensor unit 110 consisting of a plurality of sensors;
A storage unit 220 that stores gas detection elements including the gas characteristics of the sensor unit, monitoring target, and monitoring area, and
It includes a control unit 240 that selects the monitoring area with the user's selection information, registers the gas detection element, receives the registered gas detection element, sets the gas monitoring purpose, and monitors the target gas among the gases that can be generated in the monitoring area. do,
The control unit provides the user with a plurality of gas monitoring purposes for each monitoring area, sets the monitoring area customized to the user, and generates a setting standard to exclude gas that can occur together in the monitored and non-monitored objects from the target gas. A monitoring device using sensors. delete According to paragraph 1,
The sensor unit includes a sensor for target gas (111) capable of detecting target gas and a sensor for increasing selectivity (112) capable of detecting non-target gas,
The sensor for increasing selectivity is capable of detecting non-target gas while reacting to the target gas, and can be used for gas concentration correction and backup. A monitoring device using a sensor. According to paragraph 1,
The surveillance targets include metals and non-metals,
A monitoring device using a sensor, wherein the control unit sets a target gas to be monitored among gases generated by corrosion of metals and gases generated by incomplete combustion of non-metals. According to paragraph 1,
A monitoring device using a sensor, characterized in that running an application including a service for setting a target gas and a service for calculating the concentration of the target gas in response to the selection of the gas detection element.