A gas leak detection method, device, equipment and medium

Abstract

The present application provides a gas leak detection method, device, equipment and medium for accurately and efficiently determining whether a gas leak occurs in a gas pipeline. In the method, the current position and the detected gas concentration uploaded by the detection device are received, and the gas leakage risk value of the gas pipeline at the current position is determined according to the methane gas concentration and the ethane gas concentration, so that the gas pipeline safety can be accurately detected; if the gas leakage risk value is greater than the preset leakage threshold, it is determined that a gas leak occurs in the gas pipeline and an alarm is sounded, so that timely repairs can be carried out to minimize the losses caused by the gas leakage.

Description

Technical Field

[0001] The present application relates to the field of gas safety, and in particular to a gas leak detection method, device, equipment and medium. Background Art

[0002] Since the construction of urban gas pipelines started early and lasted for a long time, the types and materials of pipelines are diverse, the pipeline network is widely distributed and the environment is complex, the operation and maintenance process is extremely complicated, and there are many hidden dangers in the safety of gas pipelines. Urban gas is mainly natural gas, which is a colorless, tasteless and odorless gas. When the concentration of natural gas reaches 5%-16%, it will explode. The main components of natural gas are methane and ethane. Therefore, the detection and monitoring of methane and ethane concentrations can play a very important protective role.

[0003] Currently, most of the gas safety detection equipment on the market only focuses on the raw data collection of methane or ethane concentrations, and cannot make accurate and comprehensive judgments and prevent gas leaks.

[0004] Therefore, there is an urgent need for a gas leak detection method with fast response speed, stability and reliability to avoid gas pipeline safety accidents caused by gas leaks. Summary of the invention

[0005] The present application provides a gas leak detection method, device, equipment and medium for determining whether a gas leak occurs in a gas pipeline.

[0006] In a first aspect, the present application provides a gas leak detection method, the method comprising:

[0007] Receiving the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration;

[0008] The gas leakage risk value of the gas pipeline at the current position is determined based on the methane gas concentration and the ethane gas concentration; if the gas leakage risk value is greater than a preset leakage threshold, it is determined that a gas leakage occurs in the gas pipeline and an alarm is issued.

[0009] In a possible implementation manner, before determining the gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration, the method further includes:

[0010] According to the received current location, the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved are obtained, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0011] Determining the gas leakage risk value of the gas pipeline at the current position according to the methane gas concentration and the ethane gas concentration includes: determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0012] In a possible implementation manner, determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter includes:

[0013] Determining a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and determining a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold;

[0014] The gas leakage risk value of the gas pipeline is determined according to the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0015] In a possible implementation, the method further includes:

[0016] Determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0017] In a possible implementation, the method further includes:

[0018] Obtaining the values ​​of each preset health parameter of the target gas pipeline network, wherein each preset health parameter includes: the investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0019] The comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; the health level corresponding to the comprehensive health is determined and displayed based on the correspondence between the preset health level threshold and the comprehensive health.

[0020] In a second aspect, the present application provides a gas leak detection device, the device comprising:

[0021] A receiving module, used to receive the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration;

[0022] A determination module, which determines a gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration;

[0023] The alarm module is used to determine that a gas leak occurs in the gas pipeline and to sound an alarm if the gas leakage risk value is greater than a preset leakage threshold.

[0024] In a possible implementation, the device further includes:

[0025] An acquisition module is used to acquire the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved according to the received current location, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0026] The determination module is further used to determine the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0027] In a possible implementation, the determination module is further used to determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; and determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0028] In a possible implementation, the determination module is specifically used to determine a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and to determine a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold; and to determine the gas leakage risk value of the gas pipeline based on the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0029] In a possible implementation, the acquisition module is further used to acquire the values ​​of various preset health parameters of the target gas pipeline network, wherein the various preset health parameters include: investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0030] The determination module is further used to determine the comprehensive health of the target gas pipeline network according to the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values;

[0031] The device also includes:

[0032] The display module is used to determine and display the health level corresponding to the comprehensive health level according to the corresponding relationship between the preset health level threshold and the comprehensive health level.

[0033] In a third aspect, the present application provides an electronic device, which includes at least a processor and a memory, and the processor is used to implement the steps of any of the above-mentioned gas leak detection methods when executing a computer program stored in the memory.

[0034] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program, which implements the steps of any of the above-mentioned gas leak detection methods when executed by a processor.

[0035] In an embodiment of the present application, the current position and the detected gas concentration uploaded by the detection equipment are received, and the gas leakage risk value of the gas pipeline at the current position is determined according to the methane gas concentration and the ethane gas concentration therein, so that the safety of the gas pipeline can be accurately detected; if the gas leakage risk value is greater than the preset leakage threshold, it is determined that a gas leak has occurred in the gas pipeline and an alarm is sounded, so that timely repairs can be carried out to minimize the losses caused by the gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of a gas leak detection process provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of a movable detection device provided in an embodiment of the present application;

[0039] Figure 3 A topological diagram of the overall health status of a gas company's pipeline network provided in an embodiment of the present application;

[0040] Figure 4 A schematic diagram of the structure of a gas leak detection device provided in an embodiment of the present application;

[0041] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0043] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0044] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0045] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0046] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0048] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

[0049] The present application provides a gas leak detection method, device, equipment and medium, in which the current position and the detected gas concentration uploaded by the detection device are received, wherein the gas concentration includes the methane gas concentration and the ethane gas concentration; the gas leakage risk value of the gas pipeline at the current position is determined according to the methane gas concentration and the ethane gas concentration; if the gas leakage risk value is greater than a preset leakage threshold, it is determined that a gas leak has occurred in the gas pipeline and an alarm is triggered.

[0050] In order to improve the identification of gas pipeline safety, the present application provides a gas leak detection method, device, equipment and medium.

[0051] Embodiment 1:

[0052] Figure 1 A schematic diagram of a gas leak detection process provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the process includes the following steps:

[0053] S101: receiving the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration.

[0054] The gas pipeline safety detection method provided in the embodiment of the present application is applied to an electronic device, which may be a mobile terminal, a PC, a tablet computer, a server, or other device.

[0055] Since urban gas mainly uses natural gas, and the main components of natural gas are methane and ethane, in order to detect whether there is a gas leak in the gas pipeline, the detection equipment can detect the gas concentration around the gas pipeline and send the detected gas concentration to the electronic device. In addition, in order to facilitate the determination of the gas concentration around which the detection equipment is detecting, the detection equipment also sends its current location to the electronic device. The gas concentration includes the methane gas concentration and the ethane gas concentration. The detection equipment can be a movable detection equipment or an IoT real-time detection equipment fixed around the gas pipeline.

[0056] The mobile detection device is a detection device that can be handheld, electric or motor vehicle mounted. Figure 2 This is a schematic diagram of the structure of a movable detection device provided in an embodiment of the present application. Figure 2As shown, the movable detection device includes a laser detection unit 201, a data acquisition and upload unit 202, a positioning unit 203 and a portable structure unit 204. The portable structure unit 204 is equipped with a universal joint mechanical device, which can be connected to an electric vehicle or a car, and can conveniently adjust the detection direction, omnidirectionally track the gas pipeline path, and complete the gas concentration detection task around the gas pipeline. The laser detection unit 201 includes a methane detection unit and an ethane detection unit. The laser detection unit 201 can detect the methane and ethane gas concentrations under complex terrain conditions within a range of 0 to 200 meters, and the accuracy is high. Thus, the gas concentration detection of the gas pipeline can be completed accurately and quickly. The positioning unit 203 can determine the current position of the detection in real time. The data acquisition and upload unit 202 can upload the current position and the gas concentration around the gas pipeline detected at the current position to the electronic device. The electronic device can thus receive the current position and gas concentration uploaded by the movable detection device in real time. The movable detection device can also include: a display operation unit and a portable energy storage and power supply unit. Among them, the portable energy storage and power supply unit uses a portable rechargeable battery or an external battery to ensure that the mobile detection equipment can be powered, ensuring that the mobile detection equipment can continue to work. The display operation unit can display the gas concentration and current position in real time. The inspector can determine the current position and gas concentration in time through the display operation unit, and can also upload the current position and gas concentration to the cloud database through the operation button. Electronic equipment can also obtain the gas concentration around the gas pipeline at each location from the cloud database, so as to conduct continuous detection of whether there is a gas leak in the gas pipeline at a later time.

[0057] The IoT real-time detection equipment fixed around the gas pipeline can detect the gas concentration around the gas pipeline in real time, including the methane gas concentration and the ethane gas concentration; and upload the detected gas concentration around the gas pipeline and its current position to the electronic device or cloud database. The electronic device can directly receive the current position and detected gas concentration uploaded by the detection device, or obtain the gas concentration around the gas pipeline at each location in the cloud database according to a preset period.

[0058] S102: Determine a gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration.

[0059] Since the main components of natural gas are methane and ethane, the gas leakage risk value of the gas pipeline at the current location can be determined based on the received methane gas concentration and ethane gas concentration around the gas pipeline at the current location. For example, according to the methane gas concentration and ethane gas concentration in the natural gas, a methane gas concentration threshold and an ethane gas concentration threshold are set. Based on the ratio of the received methane gas concentration of the gas pipeline at the current location to the methane gas concentration threshold, and the ratio of the ethane gas concentration to the ethane gas concentration threshold, the gas leakage risk value of the gas pipeline at the current location is determined based on the sum of the two ratios.

[0060] S103: If the gas leakage risk value is greater than a preset leakage threshold, it is determined that a gas leakage occurs in the gas pipeline and an alarm is issued.

[0061] In order to be able to repair the gas pipeline where gas leakage occurs in time, a leakage threshold of the gas leakage risk value can be set in advance. If the gas leakage risk value is greater than the leakage threshold, it is determined that a gas leakage occurs in the gas pipeline at the current location and an alarm is triggered.

[0062] In an embodiment of the present application, the current position and the detected gas concentration uploaded by the detection equipment are received, and the gas leakage risk value of the gas pipeline at the current position is determined according to the methane gas concentration and the ethane gas concentration therein, so that the safety of the gas pipeline can be accurately detected; if the gas leakage risk value is greater than the preset leakage threshold, it is determined that a gas leak has occurred in the gas pipeline and an alarm is sounded, so that timely repairs can be carried out to minimize the losses caused by the gas leakage.

[0063] In a possible implementation, a key threshold value less than the leakage threshold value can be pre-set, and the gas pipelines whose gas leakage risk value exceeds the key threshold value can be marked as key points for special attention. The key risk points of the alarming gas pipelines can be marked, and fixed IoT real-time detection devices can be deployed around the gas pipelines so that the IoT real-time detection devices can upload the real-time detected gas concentration and their own positions to the electronic devices.

[0064] Embodiment 2:

[0065] In order to more accurately detect whether a gas leak occurs in a gas pipeline, based on the above embodiment, in the embodiment of the present application, before determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration, the method further includes:

[0066] According to the received current location, the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved are obtained, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0067] Determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration includes:

[0068] The gas leakage risk value of the gas pipeline is determined according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0069] In order to more accurately detect the safety of gas pipelines, the values ​​of various preset safety parameters related to the safety of gas pipelines are pre-saved, where each preset safety parameter includes the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, weather conditions, the complexity of the geographical environment in which the pipeline is located, and the pipeline material.

[0070] The occurrence of geological disasters such as earthquakes, rainstorms, and mudslides will affect the safety of gas pipelines. Therefore, the historical geological disaster occurrence of gas pipelines can be whether there have been geological disasters such as earthquakes, rainstorms, and mudslides at the location of the gas pipeline. If any geological disaster has occurred, the value of the historical geological disaster occurrence is 1; if none of them have occurred, the value of the historical geological disaster occurrence is 0. The pipeline operation life of the gas pipeline is the number of years from the completion of the construction and delivery of the gas pipeline to the current time. The longer the age, the higher the possibility of gas leakage. If it is less than one year, it will be calculated as one year. The pipeline structure complexity of the gas pipeline will also affect the safety of the gas pipeline. For example, the more bends in the pipeline, the higher the possibility of gas leakage. Therefore, the pipeline structure complexity can be determined according to the number of bends in the gas pipeline. For example, the pipeline structure complexity of the number of bends exceeding the set threshold can be 1, and the pipeline structure complexity of the number of bends not exceeding the set threshold can be less than 1. Values, such as 0.7 or 0.8. The complexity of the geographical environment where the gas pipeline is located will also affect the safety of the gas pipeline. For example, the gas pipeline located in a wild plain is safer than the gas pipeline located in a densely populated area. Therefore, the complexity of the geographical environment where the gas pipeline is located can be determined according to the density of the population or buildings in the geographical environment where the gas pipeline is located. The value corresponding to the weather condition of the gas pipeline can also be determined according to the current temperature, humidity and wind force level at the current location. For example, if the current temperature, humidity and wind force level are all within the normal range, the determined weather condition is normal weather, and the corresponding weather condition can take a value less than 1; if any value of the current temperature T, humidity H, and wind force level is not within the normal range, the determined weather condition is abnormal weather, and the corresponding weather condition can take a value greater than 1. The value corresponding to the pipeline material of the gas pipeline can be determined according to the service life of the pipeline material. For example, if the current usage time exceeds half of the service life, the value corresponding to the pipeline material is 1; if the current usage time does not exceed half of the service life, the value corresponding to the pipeline material is less than 1, such as 0.7 or 0.8. Therefore, the gas leakage risk value of the gas pipeline can be comprehensively determined based on the methane gas concentration, the ethane gas concentration and the values ​​of various preset safety parameters.

[0071] The gas leakage risk value of the gas pipeline can be determined based on the sum of the methane gas concentration and the ethane gas concentration and the values ​​of various preset safety parameters.

[0072] In an embodiment of the present application, based on the received current position, the values ​​of various preset safety parameters of the gas pipeline at the current position that are pre-saved are obtained, and then the gas leakage risk value of the gas pipeline is determined based on the methane gas concentration and the ethane gas concentration and the values ​​of various preset safety parameters.

[0073] Embodiment 3:

[0074] In order to more accurately determine the gas leakage risk value of the gas pipeline, based on the above embodiments, in the embodiment of the present application, the gas leakage risk value of the gas pipeline is determined according to the methane gas concentration and the ethane gas concentration and the values ​​of the preset safety parameters, including:

[0075] Determining a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and determining a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold;

[0076] The gas leakage risk value of the gas pipeline is determined according to the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0077] In order to more accurately determine the gas leakage risk value of the gas pipeline, in the embodiment of the present application, a methane gas concentration threshold and an ethane gas concentration threshold can be preset, and a first ratio of the methane gas concentration to the preset methane gas concentration threshold, and a second ratio of the ethane gas concentration to the preset ethane gas concentration threshold are determined. In order to more accurately determine the risk leakage value of the gas pipeline based on the methane gas concentration, the ethane gas concentration and each preset safety parameter, the methane gas concentration, the ethane gas concentration and the weight values ​​corresponding to the preset safety parameters can be preset. The gas leakage risk value of the gas pipeline is determined based on the first ratio, the second ratio, the values ​​of each preset safety parameter and the corresponding weight values.

[0078] Specifically, the gas leakage risk value of the gas pipeline can be determined according to the following formula:

[0079] A=[ρ(CH4) / ρ(CH4Limit)]*0.6+[ρ(2CH3) / ρ(2CH3Limit)]*0.3+Y*0.02+THW*0.01+EQRDF*0.03+Area*0.01+

[0080] Top*0.02+Ma*0.01

[0081] Wherein, A is the gas leakage risk value of the gas pipeline, [ρ(CH4) / ρ(CH4Limit)] is the first ratio of the methane gas concentration to the methane gas concentration threshold. If the first ratio is greater than 1, the value can be 1, and if the first ratio is less than 1, the actual value can be taken; [ρ(2CH3) / ρ(2CH3Limit)] is the second ratio of the ethane gas concentration to the ethane gas concentration threshold. If the second ratio is greater than 1, the value can be 1, and if the second ratio is less than 1, the actual value can be taken; Y is the operating life of the pipeline, which can be the operating life of the gas pipeline from the completion of construction and delivery to the current time. For example, if it is less than ten years, the value can be 0.8, and if it is more than ten years, the value can be 1. THW is the value corresponding to the weather condition determined according to the current temperature T, humidity H, and wind force level W. For example, if the current temperature T, humidity H, and wind force level W are all within the normal range, the determined weather condition is normal weather, and the corresponding weather condition can be taken as 0.6; if any of the current temperature T, humidity H, and wind force level W is not within the normal range, the determined weather condition is abnormal weather, and the corresponding weather condition can be taken as a value greater than 1. EQRDF is the value corresponding to the occurrence of historical geological disasters such as earthquakes EQ, heavy rains R, and debris flows DF. For example, if any of them has occurred, the value can be 1, and if it has never occurred, the value can be 0.5. Area is the complexity of the geographical environment where the pipeline is located. For example, if the geographical environment where the pipeline is located is a complex urban building, the complexity is high, and the complexity can be taken as 1; if the geographical environment where the pipeline is located is a flat field in the wilderness, the complexity is low, and the complexity can be taken as 0.7. Top is the complexity of the pipeline structure, which can be determined based on the number of bends in the gas pipeline. For example, the complexity of the pipeline structure when the number of bends exceeds the set threshold can be 1, and the complexity of the pipeline structure when the number of bends does not exceed the set threshold can be 0.8. Ma is the pipeline material, which can be determined based on the service life of the pipeline material. For example, if the current usage time exceeds half of the service life, the value corresponding to the pipeline material is 1; if the current usage time does not exceed half of the service life, the value corresponding to the pipeline material is 0.8.

[0082] The methane gas concentration, ethane gas concentration and weight values ​​corresponding to each preset safety parameter can be determined based on the degree of correlation between the first ratio, the second ratio and each preset safety parameter to whether a gas pipeline leaks. The weight in the above formula is only one possible value, and this application does not limit this.

[0083] Taking the above formula as an example, since methane accounts for the highest proportion in natural gas, the higher the methane gas concentration, the more likely it is that gas leakage will occur, so the weight corresponding to the methane gas concentration is the highest, which can be taken as 0.6. Similarly, ethane is the second most abundant gas in natural gas, so the weight corresponding to the ethane gas concentration can be taken as 0.3. The influence of other preset safety parameters on the gas leakage risk value is relatively low, so the weight corresponding to each preset safety parameter is relatively low. In the above implementation, the weight corresponding to the pipeline operation years is 0.02, the weight corresponding to the weather conditions is 0.01, the weight corresponding to the occurrence of historical geological disasters is 0.03, the weight corresponding to the complexity of the geographical environment where the pipeline is located is 0.01, the weight corresponding to the complexity of the pipeline structure is 0.02, and the weight corresponding to the pipeline material is 0.01. Then, according to the first ratio, the second ratio and the corresponding weight values ​​of each preset safety parameter, the gas leakage risk value of the gas pipeline can be calculated.

[0084] In an embodiment of the present application, a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold are determined; based on the first ratio, the second ratio, the values ​​of each preset safety parameter and the corresponding weight values, the gas leakage risk value of the gas pipeline is determined.

[0085] Embodiment 4:

[0086] In order to further detect the health of the gas pipeline network, based on the above embodiments, in the embodiment of the present application, the method further includes:

[0087] Determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0088] In order to detect the health of the gas pipeline network, in the embodiment of the present application, the target gas pipeline network to which the gas pipeline belongs can be determined first. The gas pipeline network is composed of multiple gas pipelines.

[0089] The specific gas pipeline network division method can be determined according to the actual situation, and this application does not limit this. For the determined target gas pipeline network, the sum of the lengths of all gas pipelines included in the target gas network is obtained as the total length, and the sum of the lengths of gas pipelines with gas leaks in all gas pipelines is obtained as the leakage length. The health of the target gas network is determined based on the ratio of the leakage length to the total length.

[0090] Specifically, for any gas pipeline in the target gas network, the gas leakage risk value of the gas pipeline is calculated. The smaller the gas leakage risk value, the lower the possibility of gas leakage, and the larger the gas leakage risk value, the higher the possibility of gas leakage. Taking the gas leakage risk value formula in the above embodiment as an example, the calculated gas leakage risk value (A) is generally between 0 and 1, so the leakage threshold can be set to 0.8. If A is greater than 0.8, it is confirmed that a gas leak has occurred in the gas pipeline, and the sum of the lengths of the gas pipelines where gas leakage has occurred in all the gas pipelines in the target gas pipeline network is obtained as the leakage length. According to the ratio of the leakage length to the total length, the health of the target gas network is determined.

[0091] In an embodiment of the present application, for a target gas pipeline network, the total length of all gas pipelines included in the target gas pipeline network and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines are obtained, and the health of the target gas pipeline network is determined based on the ratio of the leakage length to the total length.

[0092] Embodiment 5:

[0093] In order to further determine the health level of the gas pipeline network, based on the above embodiments, in the embodiment of the present application, the method further includes:

[0094] Obtaining the values ​​of each preset health parameter of the target gas pipeline network, wherein each preset health parameter includes: the investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0095] The comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; the health level corresponding to the comprehensive health is determined and displayed based on the correspondence between the preset health level threshold and the comprehensive health.

[0096] In order to more accurately determine the comprehensive health of the target gas network, the values ​​of each preset health parameter of the target gas pipeline network can be obtained, wherein each preset health parameter includes: the investment rate of the IoT real-time detection equipment at key risk points, the number of inspections, and the frequency of pipeline optimization. In an embodiment of the present application, a gas pipeline with a high gas leakage risk value but not exceeding the leakage threshold, or a gas pipeline that has exceeded the leakage threshold and has an alarm can be marked as a key risk point, and these gas pipelines can be focused on, and fixed IoT real-time detection equipment can be deployed around these gas pipelines to detect the gas concentration around these gas pipelines or the pressure of the gas pipeline in real time, and other values ​​related to gas leakage. The investment rate of IoT real-time detection equipment at key risk points can be the ratio of the number of key risk points in the target gas pipeline network where IoT real-time detection equipment is deployed to the number of all key risk points. The inspection situation can be the sum of the number of monthly inspections for each gas pipeline in the target gas pipeline network. The frequency of pipeline optimization is the sum of the number of construction, transformation and optimization for each gas pipeline in the target gas pipeline network per year.

[0097] The health of the target gas pipeline network, the value of each preset health parameter and the corresponding weight value can be set according to the health of the target gas pipeline network and the importance of each preset health parameter to the security of the target gas pipeline network. Then, the comprehensive health of the target gas pipeline network is determined according to the health of the target gas pipeline network, the value of each preset health parameter and the corresponding weight value.

[0098] Specifically, the comprehensive health of the target gas pipeline network can be determined according to the following formula:

[0099] HealthScore=Re*10k+IOT*k+C*k+Imp*k

[0100] Among them, HealthScore is the comprehensive health of the target gas pipeline network, Re is the health of the target gas pipeline network, IOT is the investment rate of real-time detection equipment of key risk points, C is the value of the inspection situation, Imp is the frequency of pipeline network optimization, and k is the weight.

[0101] Since the importance of each preset health parameter to the security of the gas pipeline network is similar, and the health degree is more important to the security of the target gas pipeline network, the weight corresponding to each preset health parameter can take the same value, and the weight of the health degree is 10 times the weight corresponding to each preset health parameter.

[0102] In order to more intuitively display the health status of the target gas pipeline network, the health level corresponding to the comprehensive health level can be determined and displayed according to the corresponding relationship between the preset health level threshold and the comprehensive health level.

[0103] Taking the formula of the comprehensive health (HealthScore) of the target gas pipeline network as an example, in a possible implementation, the weight k is set to 500, and the health levels are set to include high risk, moderate risk, basic health and high quality health. The calculated HealthScore value is between 0 and 6500, and the corresponding relationship between the health level threshold and HealthScore of each health level can be pre-set as follows:

[0104] The health level threshold for high risk is 0 to 2000. When 0≤HealthScore<2000, the corresponding health level is high risk; the health level threshold for moderate risk is 2000 to 5000. When 2000≤HealthScore<5000, the corresponding health level is moderate risk; the health level threshold for basic health is 5000 to 6000. When 5000≤HealthScore<6000, the corresponding health level is basic health; the health level threshold for excellent health is 6000 to 6500. When 6000≤HealthScore≤6500, the corresponding health level is high risk.

[0105] In order to more intuitively display the overall health status of all gas pipeline networks of a gas company, different lines can be used to display gas pipelines of a target gas network with different health levels in the overall health status topology diagram of the gas company's pipeline network. Figure 3 A gas company's pipeline network overall health status topology diagram provided in an embodiment of the present application is as follows: Figure 3 As shown, the gas pipelines with thick lines are the gas pipelines of the target gas pipeline network with high risk, and the gas pipelines with thin lines are the gas pipelines of the target gas pipeline network with high quality and health.

[0106] In an embodiment of the present application, the values ​​of each preset health parameter of the target gas pipeline network are obtained, and the comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; based on the correspondence between the pre-set health level threshold and the comprehensive health, the health level corresponding to the comprehensive health is determined and displayed.

[0107] Embodiment 6:

[0108] Based on the same technical concept, on the basis of the above embodiments, the present application also provides a gas leak detection device. Figure 4 A schematic diagram of the structure of a gas leak detection device provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the device comprises:

[0109] The receiving module 401 is used to receive the current position and the detected gas concentration uploaded by the detection device, wherein the gas concentration includes the methane gas concentration and the ethane gas concentration;

[0110] A determination module 402 determines a gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration;

[0111] The alarm module 403 is used to determine that a gas leak occurs in the gas pipeline and to generate an alarm if the gas leak risk value is greater than a preset leak threshold.

[0112] In a possible implementation, the device further includes:

[0113] An acquisition module is used to acquire the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved according to the received current location, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0114] The determination module 402 is further configured to determine the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0115] In a possible implementation, the determination module 402 is also used to determine the target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; and determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0116] In a possible implementation, the determination module 402 is specifically used to determine a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and to determine a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold; and to determine the gas leakage risk value of the gas pipeline based on the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0117] In a possible implementation, the acquisition module is further used to acquire the values ​​of various preset health parameters of the target gas pipeline network, wherein the various preset health parameters include: investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0118] The determination module 402 is further used to determine the comprehensive health of the target gas pipeline network according to the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values;

[0119] The device also includes:

[0120] The display module is used to determine and display the health level corresponding to the comprehensive health level according to the corresponding relationship between the preset health level threshold and the comprehensive health level.

[0121] The device may be specifically deployed in a terminal, and other functions of the terminal may be specifically described in the above other embodiments.

[0122] Embodiment 7:

[0123] Based on the same technical concept, on the basis of the above embodiments, the present application also provides an electronic device, Figure 5 This is a schematic diagram of the structure of an electronic device provided in this application. Figure 5 As shown, it includes: a processor 501, a communication interface 502, a memory 503 and a communication bus 504, wherein the processor 501, the communication interface 502, and the memory 503 communicate with each other through the communication bus 504;

[0124] The memory 503 stores a computer program. When the program is executed by the processor 501, the following steps are performed:

[0125] Receiving the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration;

[0126] The gas leakage risk value of the gas pipeline at the current position is determined based on the methane gas concentration and the ethane gas concentration; if the gas leakage risk value is greater than a preset leakage threshold, it is determined that a gas leakage occurs in the gas pipeline and an alarm is issued.

[0127] In a possible implementation manner, the processor 501 is further configured to:

[0128] According to the received current location, the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved are obtained, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0129] The gas leakage risk value of the gas pipeline is determined according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0130] In a possible implementation manner, the processor 501 is further configured to:

[0131] Determining a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and determining a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold;

[0132] The gas leakage risk value of the gas pipeline is determined according to the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0133] In a possible implementation manner, the processor 501 is further configured to:

[0134] Determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0135] In a possible implementation manner, the processor 501 is further configured to:

[0136] Obtaining the values ​​of each preset health parameter of the target gas pipeline network, wherein each preset health parameter includes: the investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0137] The comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; the health level corresponding to the comprehensive health is determined and displayed based on the correspondence between the preset health level threshold and the comprehensive health.

[0138] Since the principle of solving the problem by the above electronic device is similar to that of the gas leak detection method, the implementation of the above electronic device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0139] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0140] The communication interface 502 is used for communication between the electronic device and other devices.

[0141] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0142] The above-mentioned processor can be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it can also be a digital signal processing processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc.

[0143] Embodiment 8:

[0144] Based on the same technical concept, on the basis of the above embodiments, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program executable by an electronic device, and when the computer program runs on the electronic device, the electronic device implements the following steps when executing:

[0145] Receiving the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration;

[0146] The gas leakage risk value of the gas pipeline at the current position is determined based on the methane gas concentration and the ethane gas concentration; if the gas leakage risk value is greater than a preset leakage threshold, it is determined that a gas leakage occurs in the gas pipeline and an alarm is issued.

[0147] In a possible implementation manner, before determining the gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration, the method further includes:

[0148] According to the received current location, the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved are obtained, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline;

[0149] Determining the gas leakage risk value of the gas pipeline at the current position according to the methane gas concentration and the ethane gas concentration includes: determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter.

[0150] In a possible implementation manner, determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter includes:

[0151] Determining a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and determining a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold;

[0152] The gas leakage risk value of the gas pipeline is determined according to the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

[0153] In a possible implementation, the method further includes:

[0154] Determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

[0155] In a possible implementation, the method further includes:

[0156] Obtaining the values ​​of each preset health parameter of the target gas pipeline network, wherein each preset health parameter includes: the investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency;

[0157] The comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; the health level corresponding to the comprehensive health is determined and displayed based on the correspondence between the preset health level threshold and the comprehensive health.

[0158] The above-mentioned computer-readable storage medium can be any available medium or data storage device that can be accessed by the processor in the electronic device, including but not limited to magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc., optical storage such as CD, DVD, BD, HVD, etc., and semiconductor storage such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD), etc.

[0159] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0160] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0161] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0162] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0163] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A gas leak detection method, characterized in that: The method comprises: Receiving the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration; Determine the gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration; if the gas leakage risk value is greater than a preset leakage threshold, determine that a gas leakage occurs in the gas pipeline and sound an alarm; Before determining the gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration, the method further includes: According to the received current location, the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved are obtained, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline; Determining the gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration includes: Determining a gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter; Determining the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter includes: Determining a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and determining a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold; The gas leakage risk value of the gas pipeline is determined according to the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

2. The method according to claim 1, characterized in that The method further comprises: Determine a target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

3. The method according to claim 2, characterized in that The method further comprises: Obtaining the values ​​of each preset health parameter of the target gas pipeline network, wherein each preset health parameter includes: the investment rate of key risk point IoT real-time detection equipment, inspection status, and pipeline network optimization frequency; The comprehensive health of the target gas pipeline network is determined based on the health of the target gas pipeline network, the values ​​of each preset health parameter and the corresponding weight values; the health level corresponding to the comprehensive health is determined and displayed based on the correspondence between the preset health level threshold and the comprehensive health.

4. A gas leak detection device, characterized in that: The device comprises: A receiving module, used to receive the current position and detected gas concentration uploaded by the detection device, wherein the gas concentration includes methane gas concentration and ethane gas concentration; A determination module, which determines a gas leakage risk value of the gas pipeline at the current location according to the methane gas concentration and the ethane gas concentration; An alarm module, configured to determine that a gas leak occurs in the gas pipeline and sound an alarm if the gas leak risk value is greater than a preset leak threshold; An acquisition module is used to acquire the values ​​of various preset safety parameters of the gas pipeline at the current location that are pre-saved according to the received current location, wherein the various preset safety parameters include the occurrence of historical geological disasters, the operating years of the pipeline, the complexity of the pipeline structure, the weather conditions, the complexity of the geographical environment in which the pipeline is located, and the material of the pipeline; The determination module is further used to determine the gas leakage risk value of the gas pipeline according to the methane gas concentration and the ethane gas concentration and the values ​​of each preset safety parameter; The determination module is specifically used to determine a first ratio of the methane gas concentration to a preset methane gas concentration threshold, and to determine a second ratio of the ethane gas concentration to a preset ethane gas concentration threshold; and to determine the gas leakage risk value of the gas pipeline based on the first ratio, the second ratio, the values ​​of the preset safety parameters and the corresponding weight values.

5. The device according to claim 4, characterized in that The determination module is also used to determine the target gas pipeline network to which the gas pipeline belongs; for the target gas pipeline network, obtain the total length of all gas pipelines included in the target gas pipeline network, and the leakage length of the gas pipelines where gas leakage occurs among all the gas pipelines; and determine the health of the target gas pipeline network based on the ratio of the leakage length to the total length.

6. An electronic device, characterized in that: The electronic device comprises at least a processor and a memory, and the processor is used to implement the steps of the gas leak detection method as claimed in any one of claims 1 to 3 when executing the computer program stored in the memory.

7. A computer-readable storage medium, characterized in that: It stores a computer program, which, when executed by a processor, implements the steps of the gas leak detection method as claimed in any one of claims 1 to 3.

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