Gas leak detection method using machine learning

Abstract

The invention provides a gas leak detection method using machine learning. The method is executed by a gas leakage detection system, and the gas leakage detection system comprises an air injection unit, a gas inlet, a first pressure measurement unit for measuring the pressure of air injected through the air injection unit, a second pressure measurement unit for measuring the pressure of a cold water valve, a third pressure measurement unit for measuring the pressure of a hot water valve, and a fourth pressure measurement unit. The control unit comprises a first air injection unit, a second air injection unit, a pressure measuring unit, a switch part, a vibration detection sensor unit for acquiring vibration intensity information and a control unit, and the first air injection unit injects air into the first air injection unit through the pressure measuring unit to acquire pressure information; the cold water valve, the hot water valve or the heating water transmits a control signal to the switch unit so as to inject air into at least one valve; at least one of the control unit, the second pressure measuring unit, the third pressure measuring unit or the fourth pressure measuring unit acquires the pressure information from the beginning.

Description

Technical Field

[0001] This invention is a method for detecting whether cold water, hot water, and heating valves are leaking using an air injection unit and a gas injection unit. Background Technology

[0002] In recent years, gas-related accidents have occurred frequently, and people are actively conducting research on prevention. Gas accidents, in particular, are frequent in urban residential areas, necessitating urgent prevention measures. To determine if there is a gas leak, air is typically injected first. However, this method, consisting of a separate gas injection operation, suffers from inefficiency. Therefore, research is urgently needed to develop a method that allows for the rapid injection of air and gas, cold water, hot water, and separate detection of leaks in heating water systems.

[0003] Generally, lasers of a specific wavelength have the property of being absorbed by any gas. Laser receiving devices that utilize these properties can even detect gas leaks from a distance. For example, in a 3.39 μm laser emitted by a helium-neon laser, there are two wavelengths, 3.3922 μm (λ1) and 3.3912 μm (λ2). λ1 is strongly absorbed by methane, while λ2 absorbs only a small amount of methane. Summary of the Invention

[0004] The problem that the invention aims to solve

[0005] This invention provides a gas leak detection method by having independent pressure sensors on the air inlet, cold water valve, hot water valve, and hot water valve.

[0006] means for solving problems

[0007] According to one embodiment, in a gas leak detection method performed by a gas leak detection system, the gas leak detection system includes an air injection unit, a gas inlet, a first pressure measuring unit that measures the pressure of air injected through the air injection unit, a second pressure measuring unit that measures the pressure of a cold water valve, a third pressure measuring unit that measures the pressure of a hot water valve, a fourth pressure measuring unit that measures the pressure of a valve, a switching section, a vibration detection sensor unit that acquires vibration intensity information, and a control unit. The control unit includes: the first unit first injecting air through the pressure measuring unit to acquire pressure information; a control unit that transmits a control signal from the cold water valve, hot water valve, or heating water supply to the switching unit to inject air into at least one valve; a control unit that acquires pressure information from at least one of the second, third, or fourth pressure measuring units; a control unit that compares the pressure information from the first unit with the pressure information from the second unit to determine if there is a leak; a control unit that, if a leak is determined, sends a command signal to inject gas into the gas injection unit; and a control unit that determines the location of the leaking gas based on the vibration intensity information.

[0008] In the step of comparing the pressure information above (pressure information 1) and the second pressure information to determine whether there is a leak, the control unit obtains the pressure difference between the pressure information above (pressure information 1) and the pressure information obtained (pressure information 2); and if the difference is greater than a predetermined standard, the control unit determines that there is a leak.

[0009] The step of a control unit, a cold water valve, a hot water valve, or a heating water valve transmitting a control signal to a switching unit to inject air into at least two of the valves includes: a control unit, a cold water valve, transmitting a control signal to a switching unit to inject air into at least two of the hot water valves or heating water valves; including at least one of a control unit, a second pressure measuring unit, a third pressure measuring unit, or a fourth pressure measuring unit acquiring pressure information from the second unit from the first unit; and calculating the pressure information by dividing the sum of the air pressures of the control unit, the cold water valve, the hot water valve, or the heating water valve by the second unit.

[0010] If a gas leak is detected, in the step of sending a command signal for injecting gas through the gas injection unit, the control unit sends a command signal to inject a predetermined amount of hydrogen into the gas injection unit.

[0011] The step of the control unit sending a command signal to inject a predetermined amount of hydrogen into the gas injection unit includes the control unit determining a model based on a pre-learned gas injection quantity, and determining the amount of gas to be injected into the gas injection unit based on first pressure information and second pressure information.

[0012] Invention Effects

[0013] This invention features separate air and gas inlets. Using it can improve the accuracy of detecting gas leaks.

[0014] This invention relates to cold water and hot water, and the pressure sensor for each hot water source can accurately detect the location of a gas leak. Attached Figure Description

[0015] The accompanying drawings of the various embodiments provide for each embodiment, and the technical features of each embodiment are described together with the detailed description.

[0016] Figure 1 This is a diagram illustrating the operation of a processor according to one embodiment.

[0017] Figure 2 This is a schematic diagram of a gas leak detection system according to one embodiment.

[0018] Figure 3 The operation of determining whether a gas leak is occurring based on multiple pressure information is illustrated according to an embodiment.

[0019] Figure 4 The first embodiment includes the pressure and seconds information in the instruction to determine whether there is an air leak based on the pressure difference included in the pressure information.

[0020] Figure 5 The figure shows cold water and hot water according to one embodiment, illustrating the operation of obtaining pressure information by injecting air at least into the main valve.

[0021] Figure 6 This is a diagram of an apparatus for controlling a gas leak detection system according to an embodiment. Detailed Implementation

[0022] Because the present invention can be modified and has various embodiments, specific embodiments will be shown in the accompanying drawings and described in detail in the detailed description. However, this is not intended to limit the invention to the specific embodiments, and it should be understood to include all modifications, equivalents, and substitutions contained within the spirit and scope of the invention. In describing each drawing, similar reference numerals are used for similar parts.

[0023] Terms such as first, second, A, B, etc., may be used to describe various components, but components should not be limited by these terms. The terms above are used only to distinguish one component from another. For example, a first component may be named a second component without departing from the scope of the invention, and similarly, a second component may be named a first component. The term "and / or" includes any combination of multiple related statements or any one of multiple related statements.

[0024] When a component is referred to as "connected" or "connected" to another component, it can be understood as being able to connect directly to or be linked to another component, but other components should also exist in between. On the other hand, when it is said that a component is "directly connected" or "directly linked" to another component, it should be understood that no other components exist in between.

[0025] The terminology used in this application is for describing specific embodiments only and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as “comprising” or “having” are intended to indicate the presence of features, numbers, steps, operations, components, portions, or combinations thereof described in the specification, but are not intended to indicate the presence of: it should be understood that this does not preclude the possibility of the presence or addition of elements, numbers, steps, operations, components, portions, or combinations thereof.

[0026] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms as defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technical context, and should not be interpreted in an ideal or overly formal sense unless expressly defined in this application.

[0027] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. For ease of overall understanding during the description of the invention, the same reference numerals are used for the same parts in the drawings, and repeated descriptions of the same parts are omitted.

[0028] Figure 1 This is a diagram illustrating the operation of a processor belonging to a server according to an embodiment. See details. Figure 1 At least one processor 110 may be a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor that executes the methods according to embodiments of the present invention thereon. Each of the memory 120 and storage device 160 may include at least one of volatile storage media and non-volatile storage media. For example, the memory 120 may be one of read-only memory (ROM) and random access memory (RAM), and the storage device 160 may be flash memory, a hard disk drive (HDD), a solid-state drive (SSD), or various memory cards (e.g., microSD cards).

[0029] Additionally, server 100 may be included within a server and may include transceiver 130 for communication via a wireless network. Furthermore, server 100 may also include input interface device 140, output interface device 150, storage device 160, etc. Each component included in server 100 is connected via bus 170 and can communicate with each other.

[0030] 2 is a schematic diagram of a gas leak detection system according to one embodiment.

[0031] See details Figure 2 The gas leak detection system consists of an air injection section, a gas inlet, a first pressure measuring unit 1 (measuring the pressure of air injected through the air injection unit), a second pressure measuring unit 2 (measuring the pressure of the cold water valve), a third pressure measuring unit 3 (measuring the pressure of the hot water valve), a fourth pressure measuring unit 4 (measuring the pressure of the hot water valve), a switching unit 6, a vibration detection sensor unit for acquiring vibration intensity information, and a control unit. The air injection unit refers to the configuration that injects air into the valve, and the gas injection unit refers to the structure that injects gas into the valve. The first pressure measuring unit 1 measures the pressure of the air injected through the air injection unit and also serves as a reference indicator for the user to adjust the injected air pressure. A regulator 5 can be found at the connection point between the air injection section and the gas injection section.

[0032] The regulator 5 adjusts the pressure at the air and gas connection point. It includes a device to prevent air or gas from flowing back into the air or gas inlet. The regulator 5 is positioned after the cold water valve and hot water valve. At this time, the switch part 6 is the cold water valve and hot water valve; the inflow of air and gas at the top of the valve can be adjusted. At this time, the second pressure measuring unit 2 of each cold water valve, hot water valve, and hot water valve can check the valve pressure, and the third pressure measuring unit 3 and the fourth pressure measuring unit 4 can be located in each valve. The device allows for separate checks of heating system leaks by using cold water through the existing air inlet and hot water. This improves the problem of injecting additional gas after removing all air. In existing inventions, the process of removing air after adding air is inconvenient. In contrast, this invention is a cold water valve that appropriately controls both air and gas. The hot water valve is located at the leak point.

[0033] Figure 3 The operation of determining whether a gas leak is occurring based on multiple pressure information is illustrated according to an embodiment.

[0034] See details Figure 3 The gas leak detection method is as follows: In the control unit, the air injection unit first injects air through the pressure measurement unit, which can acquire pressure information. At this time, the control unit can control the amount of air injected into the air injection unit.

[0035] Furthermore, the control unit, including cold water valves, hot water valves, or heating water valves, may include transmitting control signals to the switching unit to inject air into at least one valve. The cold water valve, hot water valve, and hot water valve refer to valves that allow hot water to flow out. At this point, air can be injected into at least one of these three, and it is also possible to control the simultaneous injection of air into all three locations. Also, the control unit, including at least one of the second, third, or fourth pressure measuring units, may include acquiring pressure information. This may mean measuring the air pressure of the corresponding valve when air is injected into one of the three locations. As described below, if air is injected into multiple valves, the sum of the pressures measured by the multiple valves is calculated as the second pressure information. The control unit, by comparing the first and second pressure information, can determine if there is a leak. As described later, the first pressure information contains pressure and a number of seconds, which can be measured by comparing the pressure contained in the first pressure information.

[0036] If a leak is detected, the control unit can send a command signal to inject gas into the gas injection unit. Whether a leak exists will be discussed later. If an air leak is confirmed, the location of the leak needs to be determined. This requires injecting gas to pinpoint the leak location. Commonly used gas types can be used. It may contain hydrogen. Based on vibration intensity information, the control unit can determine the location of the injected gas leak. The vibration detection sensor unit can be an accelerometer or a vibration tester. Alternatively, it can refer to commonly used equipment.

[0037] The first pressure information injected into the air injection unit can be obtained through the first pressure measuring unit 301. The control signal can be transmitted 302 to the switching unit so that air is injected into at least one of the cold water valve, hot water valve, or heating water valve. The second pressure information 303 can be obtained from at least one of the second pressure measuring unit, third pressure measuring unit, or fourth pressure measuring unit. The first pressure information and the second pressure information are compared to determine whether there is an air leak. If an air leak is determined, an air injection command signal is sent, and the location of the air leak is determined according to the vibration intensity.

[0038] Figure 4 The first embodiment includes pressure and seconds in the information, indicating the operation of determining whether there is an air leak based on the pressure difference included in the pressure information. See details... Figure 4 The control unit is the first to obtain the pressure difference between the pressure in the first pressure information and the pressure in the second pressure information. If the difference is greater than a predetermined standard, an air leak can be determined. The predetermined standard can be determined by the user's settings. In this case, the pressure in the first pressure information is compared with the pressure in the second pressure information. By comparing the two pressures, the air pressure injected into the air jet section, and the pressure from cold water, if there is a certain degree of difference in pressure obtained from at least one of hot water or heating water, it may be due to an air leak.

[0039] The control unit is the first pressure information containing pressure and seconds. It can obtain the pressure difference 401 contained in the pressure information. If the difference is greater than the predetermined standard, an air leak 402 can be determined.

[0040] Figure 5 The diagram illustrates, according to one embodiment, the operation of obtaining pressure information by injecting air at least into the main valve.

[0041] See details Figure 5 The control unit, the cold water valve, and the control signal can be transmitted to the switching unit to inject air into at least two of the hot water valve or the heating water valve. The control unit, by controlling the switching unit, calculates the sum of the air pressures of the cold water valve, the hot water valve, or the heating water valve by dividing by the second, which can be obtained through pressure information.

[0042] This includes cold water and hot water; it may involve simultaneously measuring the pressure of each heating water valve, rather than measuring the pressure individually. In this case, pressure information is provided on the second cold water valve, the second hot water valve corresponds to each pressure measuring unit, and the third or fourth pressure measuring unit can be the sum of the pressures obtained from at least two pressure measuring units.

[0043] At this point, the control unit can obtain pressure values ​​from at least two sources. The control unit can then determine whether any valve is leaking.

[0044] In one embodiment, if at least two valves (cold water valve, hot water valve, and hot water valve) are found to have air leaks, the switching unit controls one of two positions to allow air to pass through each valve one by one. If there are significant leaks, the priority can be set high, and a hazard alarm signal can be sent to the user terminal. Subsequently, the control unit can control the switching unit to inject air into the high-priority valves first, after gas is injected into the gas injection unit.

[0045] In one embodiment, the control unit may store previously stored valve information, including information such as the valve material or the place where the valve was purchased.

[0046] The control unit has determined that air is leaking from the valve. Please contact a valve dealer near the valve's current installation location. At this point, the distance between the valve's installation location and the dealer's location, along with the dealer's location rating obtained from an external server, can be used as variables to determine the recommended dealer.

[0047] As shown in Formula 1 below.

[0048] Equation 1

[0049]

[0050] S can represent the seller's numerical value used to determine the recommended seller. b can refer to the number of variables considered when determining the recommended seller. In one example, the variables are the distance between the valve installation location and the sales location, a sales location rating obtained from an external server, and possibly the valve price obtained from the external server. fa corresponds to the a-th variable; it can mean value. For example, if the variable is price, it can be replaced with price; if it's distance, it can be replaced with distance value. ga can represent the pre-listed weight corresponding to the a-th variable. This weight can be preset by the user. These numbers allow for prioritization of important variables. Recommended sales companies can be determined by considering various variables. The control unit can identify the seller with the highest number as the recommended seller and can also prioritize based on high numbers.

[0051] Furthermore, the control unit can send a command signal to inject a predetermined amount of hydrogen into the gas injection unit. Besides hydrogen, other commonly used gases can also be used. The control unit, based on a pre-learned gas injection volume decision model, firstly uses pressure information and secondly, based on the pressure information, to determine the amount of gas to be injected into the gas injection unit. Here, the pre-learned gas injection volume decision model can be a reference machine learning model; a deep learning model can be used. The learning dataset used to learn the gas injection volume determination model is the first learning dataset. The pressure information, in the second part, can consist of pressure information and learned gas injection volume information, and can use supervised learning methods. Here, the deep learning model module can use deep neural network (DNN) algorithms. Not limited to those already described, convolutional neural network (CNN), recurrent neural network (RNN), restricted Boltzmann machine (RBM), and deep belief network (DBN) algorithms can be used, and each is known in its own way. The algorithms are well-known techniques and will not be elaborated further.

[0052] In one embodiment, a second model for determining the gas injection quantity can be used as shown in Equation 2 below.

[0053] Equation 2

[0054]

[0055] C can represent a constant representing the amount of gas injected into the gas injection unit. That is, the amount of gas injected into the gas injection unit can be determined by multiplying the constant by a user-preset specific value. e is the pressure value and number of seconds contained in the first pressure information. The second, third, and fourth pressure measurement units can each measure a value representing the number of comparisons. In other words, e is the number of valves corresponding to cold water, hot water, and heating water, and can be 3. The range of pressure differences less than 10, greater than 10 but less than 20, and greater than 20 but less than 30 can be represented by values ​​1, 2, and 3 quantized by d. Here, it is not limited to the numbers 10, 20, and 30, but can be determined by the user setting. xd is the pressure contained in the first pressure information and the valve corresponding to dth; it may mean the difference between the measured pressure values. yd can represent the weight corresponding to the corresponding valve. For cold water and hot water, since valve characteristics may differ depending on the heating water, the corresponding valve may mean considering the weight of characteristics. By considering the characteristics of each valve through the corresponding formula, the precise injection volume can be determined by considering the valve corresponding to leakage. Furthermore, the more gas leaks there are, the easier it is to locate the leak if there are large scratches or holes on the valve, even if only a small amount of gas is injected. Less gas can then be injected.

[0056] The control unit can send a control signal to the switching unit 501 to inject air into at least two of the cold water valve, hot water valve, or heating water valve, and the sum of the pressures of the air injected into at least two of the cold water valve, hot water valve, or heating water valve can be obtained as second pressure information 502.

[0057] Figure 6 This is a diagram of an apparatus for controlling a gas leak detection system according to an embodiment.

[0058] See details Figure 6 The device 12 for controlling the gas leak detection system can receive user input and transmit commands. In one embodiment, to introduce air into the air injection unit, various operations such as controlling the air pressure or stopping the air injection can be performed by adjusting the air button 10. The control unit can also inject gas into the gas injection section. This can be done manually by the user. At this time, the gas injection amount can also be determined by the gas button 11, or an operation such as stopping can be performed. In addition, there may be a second button 7 associated with the pressure measurement unit, a third button 13 associated with the pressure measurement unit, and a fourth button 14 associated with the pressure measurement section. Each button can perform an operation to control each pressure measurement unit. In addition, the device 12 for controlling the gas leak detection system may include a component that acquires user input values ​​corresponding to operations that perform various functions according to user settings.

[0059] The method according to the invention can be implemented in the form of program instructions, which can be executed by various computer devices and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., which may be included individually or in combination. The program instructions recorded on the computer-readable medium may be specifically designed and constructed for this invention, or may be known and available to those skilled in the art of computer software.

[0060] Examples of computer-readable media may include hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions may include machine language code, such as code generated by a compiler, and high-level language code that can be executed by a computer using an interpreter. The aforementioned hardware devices may be configured to operate in conjunction with at least one software module to perform the operations of the present invention, and vice versa.

[0061] Furthermore, the above-described methods or apparatus are implemented by combining all or part of their configurations or functions, or they can be implemented individually.

[0062] The invention has been described above with reference to preferred embodiments; however, those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention as set forth in the appended claims. I understand you can do it.

Claims

1. A gas leak detection method, executed in a gas leak detection system, wherein, The gas leak detection system includes an air injection device, a gas inlet, a first pressure measuring unit that measures the pressure of the air injected through the air injection unit, a second pressure measuring unit that measures the pressure of the cold water valve, a third pressure measuring unit that measures the pressure of the hot water valve, a fourth pressure measuring unit that measures the valve pressure, a switch unit, a vibration detection sensor unit that acquires vibration intensity information, and a control unit. The gas leak detection method includes the following steps: The control unit obtains the pressure information of the injected air injection unit through the first pressure measurement unit; The control unit sends a control signal to the switch unit to inject air into at least one of the cold water valve, hot water valve, and heating water. The control unit obtains pressure information from at least one of the second pressure measuring unit, the third pressure measuring unit, and the fourth pressure measuring unit; The control unit compares the first pressure information and the second pressure information to determine if there is a leak. When the control unit detects a leak, it sends a command signal to inject gas into the gas injection unit; and The control unit determines the location of the injected gas leak based on the vibration intensity information.

2. The gas leak detection method according to claim 1, wherein, The control unit compares the first pressure information and the second pressure information to determine whether there is a leak, including the following steps: The control unit acquires the pressure contained in the first pressure information and the pressure difference contained in the second pressure information; and The control unit determines that there is a leak when the difference is greater than a predetermined standard.

3. The gas leak detection method according to claim 2, wherein, The step of the control unit transmitting a control signal to the switching unit to inject air into at least one of the cold water valve, hot water valve, and heating water valve includes the step of the control unit transmitting a control signal to the switching unit to inject air into at least two of the cold water valve, hot water valve, or heating water valve. The step of the control unit obtaining pressure information from at least one of the second pressure measuring unit, the third pressure measuring unit, and the fourth pressure measuring unit includes the step of the control unit obtaining the sum of the pressures injected into at least two of the cold water valve, the hot water valve, or the heating water valve through the second pressure information.

4. The gas leak detection method according to claim 3, wherein, When the control unit determines that there is a gas leak, the step of sending a command signal for injecting gas through the gas injection unit includes the step of the control unit sending a command signal to inject a predetermined amount of hydrogen into the gas injection unit.

5. The gas leak detection method according to claim 4, wherein, The step of the control unit sending a command signal to inject a predetermined amount of hydrogen into the gas injection unit includes the steps of the control unit determining a model based on a pre-learned gas injection quantity, and determining the amount of gas to be injected into the gas injection unit based on the first pressure information and the second pressure information.

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