Method for detecting gas leak source and system using the same

Abstract

The present invention relates to a method for detecting a gas leak source and a system using the same. According to the present invention, a method for detecting a gas leak source comprises: a step in which a sensor data collection unit collects sensor data from three or more sensors located at different locations; a step in which a leak source detection unit detects a leak source by applying the collected sensor data to a pre-established detection algorithm; and a step in which a display unit displays the detected leak source on a display device, and may further include a step in which a gas diffusion range calculation unit calculates a gas diffusion range and a risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model. As such, according to the present invention, the source of a leak can be located more accurately by the center of gravity using the position information of the sensor and the gas concentration. In addition, by visually representing the gas diffusion range and risk level, information can be clearly provided to the user.

Description

Technology Field

[0001] The present invention relates to a method for detecting a gas leak source and a system using the same. More specifically, the invention relates to a method for detecting a gas leak source and a system using the same, which detects a gas leak source using location information and measurement values ​​collected from a plurality of sensors and further provides information regarding the gas diffusion range and risk level. Background Technology

[0002] Recently, various studies and investments are being made in gas facilities, piping technology, and gas accident prevention technology to prevent accidents such as gas leaks and explosions, as well as research on sensors to detect leaked gas.

[0003] However, since technologies have been disclosed that detect gas leaks or locate indoor gas leak points using only gas concentration, technologies that provide guidance on risk analysis based on the distance from the leak source and calculate the gas diffusion range are currently lacking.

[0004] The technology forming the background of the present invention is disclosed in Korean Registered Patent No. 10-1695596 (published on January 11, 2017). The problem to be solved

[0005] As such, according to the present invention, the invention provides a gas leak source detection method and a system using the same, which detects a gas leak source using location information and measurement values ​​collected from a plurality of sensors and further provides information on the gas diffusion range and risk level. means of solving the problem

[0006] According to an embodiment of the present invention for achieving such technical challenges, a method for detecting a gas leak source comprises: a step in which a sensor data collection unit collects sensor data from three or more sensors located at different locations; a step in which a leak source detection unit detects a leak source by applying the collected sensor data to a pre-established detection algorithm; and a step in which a display unit displays the detected leak source on a display device, and may further include a step in which a gas diffusion range calculation unit calculates a gas diffusion range and a risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model.

[0007] The sensor data above may include location information including the latitude and longitude of each sensor, and the gas concentration (PPM) at the location where each sensor is located.

[0008] The step of detecting the leak source can detect the leak source by applying sensor data collected from n sensors to the following mathematical formula:

[0009]

[0010] Here, mass_x is the latitude of the leak source and mass_y is the longitude of the leak source, mx1 is the product of the latitude of the first sensor and the gas concentration, my1 is the product of the longitude of the first sensor and the gas concentration, PPM1 is the gas concentration measured through the first sensor, mx2 is the product of the latitude of the second sensor and the gas concentration, my2 is the product of the longitude of the second sensor and the gas concentration, PPM2 is the gas concentration measured through the second sensor, mxn is the product of the latitude of the nth sensor and the gas concentration, myn is the product of the longitude of the nth sensor and the gas concentration, PPMn is the gas concentration measured through the nth sensor, and n is a natural number greater than 3.

[0011] The step of calculating the gas diffusion range may include: a step of calculating the gas diffusion range by applying the collected sensor data to the gas diffusion range model; and a step of calculating the risk level based on the gas concentration among the collected sensor data.

[0012] The step of calculating the gas diffusion range can calculate the gas diffusion range (C(x,y,z,He)) based on each sensor by applying the collected sensor data to the following mathematical formula:

[0013]

[0014] Here, ε is the variance (m), x is the latitude of each sensor, y is the longitude of each sensor, z is the current height of each sensor, He is the effective height (m), Q is the emissions (g / sec), and U is the wind speed (m / sec).

[0015] According to another embodiment of the present invention, a gas leak source detection system may further include: a sensor data collection unit that collects sensor data from three or more sensors located at different locations; a leak source detection unit that detects a leak source by applying the collected sensor data to a pre-established detection algorithm; and a display unit that displays the detected leak source on a display device, and may further include a gas diffusion range calculation unit that calculates a gas diffusion range and a risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model. Effects of the invention

[0016] As such, according to the present invention, the source of a leak can be located more accurately by the center of gravity using the position information of the sensor and the gas concentration.

[0017] In addition, by visually representing the gas diffusion range and risk level, information can be clearly provided to the user. Brief explanation of the drawing

[0018] FIG. 1 is a drawing illustrating a gas leak source detection system according to one embodiment of the present invention. FIG. 2 is a flowchart illustrating a method for detecting a gas leak source according to another embodiment of the present invention. FIG. 3 is a drawing specifically illustrating an example of detecting a leak source according to another embodiment of the present invention. FIG. 4 is a drawing illustrating an example of displaying a gas diffusion range and risk level on a display device according to another embodiment of the present invention. Specific details for implementing the invention

[0019] Preferred embodiments according to the present invention will be described in detail below with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0020] Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0021] Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0022] FIG. 1 is a drawing illustrating a gas leak source detection system according to one embodiment of the present invention.

[0023] As illustrated in FIG. 1, the gas leak source detection system (100) may be configured to include a sensor data collection unit (110), a leak source detection unit (120), a gas diffusion range calculation unit (130), and a display unit (140).

[0024] First, the sensor data collection unit (110) can collect sensor data from three or more sensors located at different locations. Here, the sensor data includes location information including the latitude and longitude of the sensor and the gas concentration (PPM) at the location where the sensor is located, and may additionally include wind direction and wind speed.

[0025] Next, the leak source detection unit (120) can detect the leak source by applying the collected sensor data to a pre-established detection algorithm.

[0026] Specifically, the leak source detection unit (120) can detect a leak source by applying location information and the gas concentration at the location of the sensor among the collected sensor data to a pre-established detection algorithm. Here, the detection algorithm can be constructed to calculate a center point corresponding to the leak source by considering the gas concentration as weight.

[0027] Next, the gas diffusion range calculation unit (130) can calculate the gas diffusion range and risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model. Here, the gas diffusion range model is a Gaussian model, and when the gas concentration is measured, it can be constructed to calculate the gas diffusion range and risk level by using the sensor location information and the gas concentration (PPM) at the location where the sensor is located, and additionally using wind direction and wind speed as needed.

[0028] Next, the display unit (140) can display the detected leak source on the display device by combining it with a satellite map or a map.

[0029] In addition, the display unit (140) can display the gas diffusion range and risk level of each calculated sensor on a display device by combining them with a satellite map or a map.

[0030] Hereinafter, a method for detecting a gas leak source will be explained in more detail with reference to FIGS. 2 to 4.

[0031] FIG. 2 is a flowchart illustrating a method for detecting a gas leak source according to another embodiment of the present invention.

[0032] First, the sensor data collection unit (110) can collect sensor data from three or more sensors located at different locations (S210). Here, the sensor data includes location information including the latitude and longitude of the sensor and the gas concentration (PPM) at the location where the sensor is located, and may additionally include wind direction and wind speed.

[0033] Next, the leak source detection unit (120) can detect the leak source by applying the collected sensor data to a pre-established detection algorithm (S220).

[0034] FIG. 3 is a drawing specifically illustrating an example of detecting a leak source according to another embodiment of the present invention.

[0035] As illustrated in FIG. 3, the leak source detection unit (120) can detect a leak source by applying location information and the gas concentration at the location of the sensor among the collected sensor data to a pre-established detection algorithm. Here, the detection algorithm can be constructed to calculate a center point corresponding to the leak source by considering the gas concentration as weight.

[0036] In other words, the leak source detection unit (120) can detect the leak source by applying the location information of each sensor and the gas concentration collected through n sensors to the [Equation 1] below.

[0037]

[0038] Here, mass_x is the latitude of the leak source and mass_y is the longitude of the leak source, mx1 is the product of the latitude of the first sensor and the gas concentration (PPM1), my1 is the product of the longitude of the first sensor and the gas concentration (PPM1), PPM1 is the gas concentration measured through the first sensor, mx2 is the product of the latitude of the second sensor and the gas concentration (PPM2), my2 is the product of the longitude of the second sensor and the gas concentration (PPM2), PPM2 is the gas concentration measured through the second sensor, mxn is the product of the latitude of the nth sensor and the gas concentration (PPMn), myn is the product of the longitude of the nth sensor and the gas concentration (PPMn), PPMn is the gas concentration measured through the nth sensor, and n is a natural number greater than 3.

[0039] According to one embodiment of the present invention, the sensor data collected using the first to third sensors is as shown in [Table 1] below.

[0040]

[0041] For example, the leak source detection unit (120) can detect the exact location of the leak source by calculating the latitude of the leak source as 129.4927 and the longitude as 35.3707 using the above [Equation 1] and [Table 1].

[0042] Next, the gas diffusion range calculation unit (130) can calculate the gas diffusion range and risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model (S230). Here, the gas diffusion range model is a Gaussian model, and when the gas concentration is measured, it can be constructed to calculate the gas diffusion range and risk level by using the sensor location information and the gas concentration (PPM) at the location of the sensor, and additionally using wind direction and wind speed as needed.

[0043] Specifically, the gas diffusion range calculation unit (130) can calculate the gas diffusion range for a predetermined time (e.g., 1 minute, 5 minutes, or 10 minutes, etc.) by applying the gas concentration and wind speed from the collected sensor data to a gas diffusion range model (S231). At this time, the gas diffusion range model can be constructed to use the gas diffusion range according to the gas concentration and wind speed as training data, and to receive the location information, gas concentration, and wind speed of each sensor as input data to output the gas diffusion range.

[0044] That is, the gas diffusion range calculation unit (130) can calculate the gas diffusion range (C(x,y,z,He)) based on each sensor by applying the collected sensor data to the following [Equation 2].

[0045]

[0046] Here, ε is the variance (m), x is the latitude of each sensor, y is the longitude of each sensor, z is the current height of each sensor, He is the effective height (m), Q is the emissions (g / sec), and U is the wind speed (m / sec).

[0047] According to one embodiment of the present invention, the gas diffusion range calculation unit (130) can calculate the dispersion by considering atmospheric conditions with reference to [Table 2] below.

[0048]

[0049] In addition, the gas diffusion range calculation unit (130) can calculate a pre-specified type of risk (e.g., ERPG (Emergency response planning guideline), AEGL (acute exposure guideline level), TEEL (Temporary emergency exposure limits), IDLH (Immediately dangerous to life and health), EEI (Emergency exposure indices), DTL (Dangerous toxic load)) based on the gas concentration among the collected sensor data (S232).

[0050] Next, the display unit (140) can display the detected leak source or the gas diffusion range and risk level of each sensor in combination with a satellite map or a map on the display device (S240).

[0051] FIG. 4 is a drawing illustrating an example of displaying a gas diffusion range and risk level on a display device according to another embodiment of the present invention.

[0052] As illustrated in FIG. 4, the display unit (140) can display on the display device the location of each sensor, the calculated gas diffusion range, and the risk level combined on a map of the detected leak source and the accident radius selected from the leak source according to a signal from the user selecting the accident radius.

[0053] Referring to Figure 4, the sensors are indicated by orange circles, and the numbers above the orange circles are the identifiers of the sensors (e.g., first sensor, second sensor, etc.), the yellow circles are the past locations of a preset number of sensors (e.g., 5), the red circle with P written in the center is the predicted leak source, and the red circle with M written is the actual leak source.

[0054] Additionally, the display unit (140) can display the gas diffusion range in a preset color according to the calculated risk level.

[0055] For example, the display unit (140) may display the gas diffusion range in red when the calculated risk level is a 'risk level', the gas diffusion range in orange when the calculated risk level is a 'caution level', and the gas diffusion range in yellow when the calculated risk level is a 'safe level'.

[0056] According to an embodiment of the present invention, the source of a leak can be located more accurately by the center of gravity using the position information of the sensor and the gas concentration.

[0057] In addition, by visually representing the gas diffusion range and risk level, information can be clearly provided to the user.

[0058] The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the following claims. Explanation of the symbols

[0059] 100: Gas Leak Source Detection System 110: Sensor data acquisition unit 120: Leak source detection unit 130: Gas Diffusion Range Calculation Unit 140: Display section

Claims

Claim 1 A method for detecting a gas leak source comprising: a step in which a sensor data collection unit collects sensor data from three or more sensors located at different locations; a step in which a leak source detection unit applies the collected sensor data to a pre-established detection algorithm to detect a leak source; a step in which a gas diffusion range calculation unit applies the collected sensor data to a pre-established gas diffusion range model to calculate a gas diffusion range and risk level based on each sensor; and a step in which a display unit displays the detected leak source on a display device, wherein the step of detecting a leak source detects a leak source by multiplying the gas concentration measured by the location information of each sensor by the sum of the total gas concentrations measured by each sensor, and the step of calculating the gas diffusion range and risk level calculates a dispersion by referring to a pre-established indicator and considering atmospheric conditions, and calculates a gas diffusion range by applying the calculated dispersion, the location information of each sensor, the current height, effective height, gas emission amount, and wind speed to a gas diffusion range model constructed using a Gaussian model, and calculates a risk level based on the gas concentration. Claim 2 delete Claim 3 A method for detecting a gas leak source according to claim 1, wherein the sensor data includes location information including the latitude and longitude of each sensor, and the gas concentration (PPM) at the location where each sensor is located. Claim 4 In claim 3, the step of detecting the leak source is a gas leak source detection method that detects the leak source by applying sensor data collected from n sensors to the following mathematical formula: Here, mass_x is the latitude of the leak source and mass_y is the longitude of the leak source, mx1 is the product of the latitude of the first sensor and the gas concentration, my1 is the product of the longitude of the first sensor and the gas concentration, PPM1 is the gas concentration measured through the first sensor, mx2 is the product of the latitude of the second sensor and the gas concentration, my2 is the product of the longitude of the second sensor and the gas concentration, PPM2 is the gas concentration measured through the second sensor, mxn is the product of the latitude of the nth sensor and the gas concentration, myn is the product of the longitude of the nth sensor and the gas concentration, PPMn is the gas concentration measured through the nth sensor, and n is a natural number greater than 3. Claim 5 delete Claim 6 In claim 1, the step of calculating the gas diffusion range and risk level is a gas leak source detection method that calculates the gas diffusion range (C(x,y,z,He)) based on each sensor by applying the collected sensor data to the following mathematical formula: Here, ε is the variance (m), x is the latitude of each sensor, y is the longitude of each sensor, z is the current height of each sensor, He is the effective height (m), Q is the emissions (g / sec), and U is the wind speed (m / sec). Claim 7 A gas leak source detection system comprising: a sensor data collection unit that collects sensor data from three or more sensors located at different locations; a leak source detection unit that detects a leak source by applying the collected sensor data to a pre-established detection algorithm; a gas diffusion range calculation unit that calculates a gas diffusion range and a risk level based on each sensor by applying the collected sensor data to a pre-established gas diffusion range model; and a display unit that displays the detected leak source on a display device, wherein the leak source detection unit detects a leak source by multiplying the measured gas concentration by the location information of each sensor and dividing by the sum of the total measured gas concentrations, and the gas diffusion range calculation unit calculates a dispersion by referring to a pre-established indicator and considering atmospheric conditions, and calculates a gas diffusion range by applying the calculated dispersion, the location information of each sensor, the current height, effective height, gas emission amount, and wind speed to a gas diffusion range model constructed using a Gaussian model, and calculates a risk level based on the gas concentration. Claim 8 delete Claim 9 In claim 7, the sensor data comprises location information including the latitude and longitude of each sensor, and a gas leak source detection system including the gas concentration (PPM) at the location where each sensor is located. Claim 10 In claim 9, the leak source detection unit is a gas leak source detection system that detects the leak source by applying sensor data collected from n sensors to the following mathematical formula: Here, mass_x is the latitude of the leak source and mass_y is the longitude of the leak source, mx1 is the product of the latitude of the first sensor and the gas concentration, my1 is the product of the longitude of the first sensor and the gas concentration, PPM1 is the gas concentration measured through the first sensor, mx2 is the product of the latitude of the second sensor and the gas concentration, my2 is the product of the longitude of the second sensor and the gas concentration, PPM2 is the gas concentration measured through the second sensor, mxn is the product of the latitude of the nth sensor and the gas concentration, myn is the product of the longitude of the nth sensor and the gas concentration, PPMn is the gas concentration measured through the nth sensor, and n is a natural number greater than 3. Claim 11 delete Claim 12 In claim 7, the gas diffusion range calculation unit calculates the gas diffusion range (C(x,y,z,He)) based on each sensor by applying the collected sensor data to the following mathematical formula in a gas leak source detection system: Here, ε is the variance (m), x is the latitude of each sensor, y is the longitude of each sensor, z is the current height of each sensor, He is the effective height (m), Q is the emissions (g / sec), and U is the wind speed (m / sec).

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