A gas supply identification system based on data monitoring

Abstract

The present application relates to the technical field, and in particular to a gas supply identification system based on data monitoring. The system includes: obtaining the pipeline network information of the community gas supply and the building information of the community; analyzing the pipeline network information and the building information to determine the building settlement data within the preset range of the pipeline network information; predicting the leakage situation based on the building information, the pipeline network information and the building settlement data; and conducting a safety assessment based on the building information, the building settlement data and the leakage situation. Comprehensive analysis of the pipeline network information and the building information can help to more accurately identify potential problems in the gas supply; by analyzing the building settlement data within the preset range of the pipeline network information, the risk of pipeline network leakage can be identified, thereby improving the accuracy and timeliness of leakage detection; predicting the leakage situation to make the judgment more scientific and accurate, and avoid relying solely on the preset threshold to judge the leakage; conducting a safety assessment to achieve a comprehensive and scientific assessment, which can provide more valuable risk assessment results.

Description

Technical Field

[0001] The present application relates to the technical field of natural gas supply, and in particular to a gas supply identification system based on data monitoring. Background Art

[0002] In the current urban gas supply system, the safe operation and efficient management of the pipeline network are the key to ensuring the daily gas needs of residents. With the rapid development of technologies such as the Internet of Things and big data, some cities have begun to try to apply these advanced technologies to the field of gas supply management, by deploying sensors and other equipment to monitor gas supply pipelines in real time and collect pipeline operation data.

[0003] The existing data monitoring systems still have many deficiencies in terms of functions and applications. On the one hand, most systems can only achieve basic data collection and transmission functions and cannot predict large gas leaks; on the other hand, the accuracy of the system in abnormality identification and risk assessment needs to be improved, and it often relies on preset threshold judgments and lacks highly scientific evaluation methods. Summary of the invention

[0004] The present application provides a gas supply identification system based on data monitoring to solve the above problems.

[0005] In a first aspect, the present application provides a gas supply identification system based on data monitoring, the system comprising:

[0006] Obtain community gas supply network information and community building information;

[0007] Analyze the pipe network information and the building information to determine the building settlement data within a preset range of the pipe network information;

[0008] Predicting leakage according to the building information, the pipe network information and the building settlement data;

[0009] A safety assessment is performed based on the building information, the building settlement data and the leakage situation.

[0010] Through the above technical scheme, a comprehensive analysis of the pipeline information and building information is carried out, which helps to more accurately identify potential problems in gas supply; by analyzing the building settlement data within the preset range of the pipeline information, the risk of pipeline leakage caused by building structure problems can be identified, thereby improving the accuracy and timeliness of leakage detection; combining building information and building settlement data to comprehensively predict leakage situations, making judgments more scientific and accurate, and avoiding relying solely on preset thresholds to judge leaks; conducting safety assessments based on building information, building settlement data and leakage situations, achieving comprehensive and scientific assessments, and providing more valuable risk assessment results.

[0011] Optionally, the analyzing the pipe network information and the building information to determine the building settlement data within a preset range of the pipe network information includes:

[0012] Analyze the pipe network information to determine the pipe network node locations and pipe network structure;

[0013] Generate an inspection plan based on the building information, the location of the pipe network nodes and the pipe network structure;

[0014] Obtain inspection reports based on inspection plans;

[0015] The inspection report is analyzed to obtain the building settlement data.

[0016] Through the above technical solutions, the overall layout and node locations of the pipeline network can be accurately grasped, providing basic data support for the formulation of subsequent inspection plans; a scientific and reasonable inspection plan can be formulated to improve inspection efficiency and ensure that potential risk areas can be focused on during the inspection process; the inspection report obtains field data on building settlement, providing a basis for subsequent data analysis and risk assessment; accurately obtains building settlement data, providing a basis for risk assessment and subsequent decision-making; and promptly discovers abnormal building settlement to prevent potential safety hazards.

[0017] Optionally, the pipe network information further includes pipe network monitoring data; and predicting leakage according to the building information, the pipe network information and the building settlement data includes:

[0018] Analyze the influence of settlement on pipe deformation in the pipe network information according to the building settlement data and the pipe network structure; and predict pipe deformation data within a preset time according to the analysis results;

[0019] Determining theoretical pipeline gas supply loss according to the pipeline network structure and the pipeline deformation data;

[0020] Obtaining pipeline network monitoring data, and judging whether there is unreasonable gas consumption based on the pipeline network monitoring data and theoretical gas supply loss in the pipeline;

[0021] If so, the leakage is predicted based on the building information, the unreasonable gas consumption and the inspection report.

[0022] Through the above technical solutions, by analyzing in detail the impact of building settlement on pipeline deformation, we can clearly understand which pipeline sections are most affected by settlement, as well as the degree and trend of deformation, and provide basic data for subsequent prediction and planning. Predicting pipeline deformation data within a preset time in the future can help us understand the development trend of pipeline deformation in advance, provide a scientific basis for long-term planning and management, and reduce gas supply losses and safety hazards caused by pipeline deformation. Determining the theoretical pipeline gas supply loss can quantify the impact of pipeline deformation on the gas supply system, evaluate potential economic losses, and provide data support for subsequent gas supply system optimization and transformation. By judging whether there is unreasonable gas supply consumption, we can promptly discover potential leakage problems and avoid leakage expansion causing greater economic losses and social impacts. Predicting leakage can provide a scientific basis for emergency response and repair work, reduce the time and cost of leak repair, and ensure the safe and stable operation of the gas supply system. At the same time, through risk assessment of leakage, we can formulate more scientific and reasonable emergency response plans and improve our ability to respond to emergencies.

[0023] Optionally, the step of analyzing the influence of the settlement on the pipe deformation in the pipe network information according to the building settlement data and the pipe network structure; and predicting the pipe deformation data within a preset time according to the analysis result includes:

[0024] Obtaining historical inspection reports; extracting historical building settlement data from the historical inspection reports; sorting the historical building settlement data to obtain a building settlement data set;

[0025] Establishing a building settlement model according to the settlement data set;

[0026] Performing a superposition analysis on the pipe network structure and the building settlement model to determine the pipe branches affected by the settlement;

[0027] According to the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each pipe in the pipe branch to obtain the stress condition of the pipe.

[0028] According to the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each connection node position in the pipeline branch to obtain the node stress condition.

[0029] The pipeline deformation data within a preset time is predicted by combining the pipeline stress condition and the node stress condition.

[0030] Through the above technical solution, historical inspection reports are obtained to provide a data basis and make subsequent analysis possible; historical building settlement data are extracted to obtain specific building settlement information for subsequent analysis; building settlement data sets are sorted to form structured data sets for modeling and analysis; building settlement models are established to provide the ability to predict building settlement and provide tools for subsequent analysis; the pipeline network structure and building settlement model are superimposed for analysis: pipeline branches affected by settlement are identified to clarify analysis targets; pipelines and connection nodes within pipeline branches are simulated and analyzed to obtain detailed stress conditions of pipelines and nodes to provide data support for prediction; pipeline deformation data within a preset time is predicted to obtain future pipeline deformation prediction data to provide early warning for gas supply safety.

[0031] Optionally, the pipe network information further includes pipe material information and pipe structure information; the step of combining the pipe stress condition and the node stress condition to predict pipe deformation data within a preset time includes:

[0032] Analyze the pipeline material information to obtain the elastic modulus of the pipeline material and the moment of inertia of the pipeline cross section;

[0033] Analyze the pipeline structure information to obtain the pipeline span and the distance from the pipeline fixed end to the pipeline measurement point;

[0034] Determine the load of concentrated force generated by settlement within a preset time by combining the stress condition of the pipeline and the stress condition of the node;

[0035] According to the elastic modulus of the pipeline material, the moment of inertia of the pipeline cross section, the pipeline span, the distance from the pipeline fixed end to the pipeline measuring point and the load of the concentrated force generated by the settlement within the preset time, the deflection of the pipeline at the pipeline measuring point is obtained, referring to the following formula:

[0036] ;

[0037] in, is the deflection of the pipeline at the measuring point of the pipeline; is the concentrated force load generated by settlement within a preset time. is the pipe span, is the elastic modulus of the pipe material, is the moment of inertia of the pipe cross section; is the distance from the fixed end of the pipeline to the measuring point of the pipeline; is the preset time;

[0038] The deflection of the pipeline at the pipeline measuring point is used as the pipeline deformation data.

[0039] Through the above technical solution, the pipeline material information is analyzed, the key physical parameters of the pipeline material are provided, and a data basis is provided for the deflection calculation; the pipeline structure information is analyzed, the key geometric parameters of the pipeline structure are provided, and a data basis is provided for the deflection calculation; the concentrated force load is determined, and the concentrated force load caused by the building settlement is obtained, which provides the necessary input for the deflection calculation; the pipeline deflection is calculated, and the deflection data at the pipeline measuring point is obtained, which is used to evaluate the deformation of the pipeline and the safety of gas supply.

[0040] Optionally, the pipeline structure further includes a connection method between pipelines; the theoretical air supply loss of the pipeline is determined according to the pipeline network structure and the pipeline deformation data, referring to the following formula:

[0041] ;

[0042] in, is the theoretical air supply loss, is the influence coefficient of pipeline material and connection method on gas supply loss; It is the rate at which the theoretical air supply loss changes with deflection.

[0043] Through the above technical solution, by determining the influence coefficient of pipeline materials and connection methods, we can quantify the influence of different pipeline materials and connection methods on the gas supply loss, and provide basic data for the subsequent calculation of theoretical gas supply loss; obtaining accurate pipeline deformation data is the key to calculating the theoretical gas supply loss; by preprocessing the deformation data, we can ensure the accuracy and reliability of the data, thereby improving the accuracy of the calculation results; by calculating the theoretical gas supply loss, we can quantify the influence of pipeline deformation on the gas supply system and evaluate the potential economic losses; at the same time, reasonable calculation results can provide data support for the subsequent optimization and transformation of the gas supply system.

[0044] Optionally, the inspection report further includes a gas leakage rate; and predicting the leakage according to the building information, the unreasonable gas consumption and the inspection report includes:

[0045] Predicting the leakage location and the wind flow conditions within a preset range of the leakage location based on the inspection report, the building settlement model and the pipe network structure;

[0046] Determining the diffusion of the leaked gas according to the leakage rate and the leakage position;

[0047] According to the wind flow condition and the diffusion condition, the concentration accumulation condition of the leaked gas is obtained;

[0048] Based on the concentration accumulation, assess the leakage hazard when leakage occurs;

[0049] The diffusion condition, the concentration accumulation condition and the leakage hazard are taken as the leakage condition.

[0050] Through the above technical solutions, leakage situations can be predicted and potential leakage risks can be discovered in advance, providing a basis for prevention and emergency response; wind flow conditions can be predicted to determine the diffusion path of gas in the environment after leakage, providing a basis for subsequent analysis; diffusion situations can be determined, the diffusion range and speed of leaked gas can be quantified, and its impact on the surrounding environment can be evaluated; concentration accumulation situations can be obtained to determine the concentration accumulation of leaked gas in a specific area, providing a basis for risk assessment; the hazard of leakage can be evaluated, and the hazard when leakage occurs can be comprehensively evaluated to provide a scientific basis for emergency response and risk management.

[0051] Optionally, determining the diffusion of the leaked gas according to the leakage rate and the leakage position includes:

[0052] Analyze the leakage location and determine the height of the leakage source;

[0053] According to the gas leakage rate and the height of the leakage source, the gas concentration at any point in the three-dimensional space is determined, referring to the following formula:

[0054] ;

[0055] in, is a point in three-dimensional space The gas concentration at is the leakage rate of gas; For gas Diffusion coefficient of direction; For gas Diffusion coefficient of direction; is the natural exponential function; is the height of the leakage source;

[0056] Point The gas concentration at is taken as the diffusion condition.

[0057] Through the above technical solution, the leakage location is analyzed, the height of the leakage source is determined, and the height information of the leakage source is accurately obtained, providing basic data for calculating the gas concentration distribution; according to the leakage rate of the gas and the height of the leakage source, the gas concentration at any point in the three-dimensional space is determined, and the concentration distribution of the leaked gas in the three-dimensional space is quantified, providing a scientific basis for evaluating the severity and impact range of the leakage.

[0058] Optionally, the pipeline structure information further includes the center position of the pipeline; and determining the diffusion of the leaked gas according to the leakage rate and the leakage position includes:

[0059] Analyze the leakage location and determine the height of the leakage source;

[0060] According to the leakage position, determine the vertical distance between the center position of the pipeline and the wall of the building;

[0061] According to the leakage position, determining the angular position of the leakage position in the pipeline;

[0062] According to the leakage rate, the height of the leakage source, the vertical distance between the center of the pipeline and the wall of the building, and the angular position, the gas concentration at any point in the three-dimensional space is determined, referring to the following formula:

[0063] ;

[0064] in, is a point in three-dimensional space The gas concentration at The leakage position is located at an angle in the pipeline; is the leakage rate of gas; For gas Diffusion coefficient of direction; For gas Diffusion coefficient of direction; is the natural exponential function; is the height of the leakage source, is the vertical distance between the center of the pipeline and the wall of the building; The leak location is The offset in direction; For Due to the vertical distance between the center of the pipeline and the wall of the building and the leakage position The additional diffusion effect caused by the offset in the direction.

[0065] Through the above technical solution, through the method provided by this embodiment, the leakage position is analyzed, the height of the leakage source is determined, basic data is provided for calculating the gas concentration distribution, and the accuracy and scientificity of the leakage analysis are improved; according to the leakage position, the vertical distance between the center position of the pipeline and the wall of the building is determined, and the influence of the wall on the gas diffusion is considered to improve the accuracy of the gas concentration calculation; according to the leakage position, the angular position of the leakage position in the pipeline is determined, and the influence of the pipeline direction on the gas diffusion is considered to improve the accuracy of the gas concentration calculation; according to the leakage rate, the height of the leakage source, the vertical distance and the angular position between the center position of the pipeline and the wall of the building, the gas concentration at any point in the three-dimensional space is determined, and the concentration distribution of the leaked gas in the three-dimensional space is quantified, providing a scientific basis for evaluating the severity and impact range of the leakage.

[0066] Optionally, the concentration accumulation of the leaked gas is obtained according to the wind flow condition and the diffusion condition, referring to the following formula;

[0067] ;

[0068] in, The accumulated concentration within the preset time period of the preset range of the leakage location; The total volume of the preset range for the leak location; is a point in three-dimensional space The time-varying gas concentration at is the wind speed component in the gas diffusion direction;

[0069] The concentration accumulation amount within the preset range of the leakage position within the preset time period is taken as the concentration accumulation situation.

[0070] Through the above technical solution, by calculating the concentration accumulation, the overall concentration of the leaked gas within the preset range and time period is obtained, providing a scientific basis for evaluating the severity and impact range of the leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0072] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application;

[0073] Figure 2 A flow chart of a gas supply identification system based on data monitoring provided in one embodiment of the present application. DETAILED DESCRIPTION

[0074] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0075] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0076] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0077] The existing data monitoring systems still have many deficiencies in terms of functions and applications. On the one hand, most systems can only achieve basic data collection and transmission functions and cannot predict large gas leaks; on the other hand, the accuracy of the system in abnormality identification and risk assessment needs to be improved, and it often relies on preset threshold judgments and lacks highly scientific evaluation methods.

[0078] Based on this, the present application provides a gas supply identification system based on data monitoring, which conducts a comprehensive analysis of pipeline information and building information, helping to more accurately identify potential problems in gas supply; by analyzing the building settlement data within the preset range of the pipeline information, the risk of pipeline leakage caused by building structure problems is identified, thereby improving the accuracy and timeliness of leakage detection; combining building information and building settlement data to comprehensively predict leakage situations, making judgments more scientific and accurate, and avoiding relying solely on preset thresholds to judge leaks; conducting safety assessments based on building information, building settlement data and leakage situations, achieving comprehensive and scientific assessments, and being able to provide more valuable risk assessment results.

[0079] Figure 1 A schematic diagram of an application scenario provided for this application, in natural gas supply monitoring, the system provided by this application is applied, the system provided by this application is applied to any server, the server interacts with the inspection terminal, obtains the community gas supply network information from the preset database, and obtains the community building information contained in the inspection report from the inspection terminal; analyzes the pipeline network information and building information, and determines the building settlement data within the preset range of the pipeline network information; predicts leakage based on the building information, pipeline network information and building settlement data; conducts safety assessment based on the building information, building settlement data and leakage. Identify the risk of pipeline leakage caused by building structure problems, thereby improving the accuracy and timeliness of leakage detection; predict leakage to make judgments more scientific and accurate, and avoid relying solely on preset thresholds to judge leakage; conduct safety assessments based on building information, building settlement data and leakage, to achieve a comprehensive and scientific assessment, and provide more valuable risk assessment results.

[0080] For specific implementation methods, please refer to the following embodiments.

[0081] Figure 2 This is a flow chart of a gas supply identification system based on data monitoring provided by an embodiment of the present application. The system of this embodiment can be applied to the server in the above scenario. Figure 2 As shown, the system comprises:

[0082] S201. Obtain community gas supply network information and community building information.

[0083] Community gas supply can be a service that provides gas to residents or buildings within the community. The gas supply system generally includes gas pipelines, gas storage facilities, pressure regulating stations, etc.

[0084] Pipeline network information can be various data and information related to the community gas supply network, including pipeline network layout, pipe diameter, pipeline network material, pipeline network pressure level, pipeline network operation status, pipeline network maintenance records, pipeline network historical fault information, etc., which are generally obtained from the historical data and drawings of the gas supply company and stored in a preset database.

[0085] Building information can be various data and information related to buildings in the community, including structural type, construction age, floor height, load-bearing capacity, usage status, maintenance records, historical renovation information, etc.; it is generally obtained through on-site investigation and measurement, and recorded in the inspection report.

[0086] Specifically, the community gas supply pipeline information is obtained through the gas supply company's historical data and drawings; and the building information is obtained through on-site investigation and measurement.

[0087] S202: Analyze the pipe network information and the building information to determine the building settlement data within a preset range of the pipe network information.

[0088] The preset range may be a specific area set in the pipe network information for determining the building settlement data that needs to be analyzed.

[0089] Building settlement data can be the vertical displacement data of the building due to unstable foundation, geological changes or building structure problems.

[0090] Specifically, the settlement of the building is monitored regularly, and the historical building settlement data is recorded and generated, the building settlement data is associated with the pipe network information, the associated and historical building settlement data are stored in a preset database, and the pipe network information and building information are analyzed using geographic information system software and a data analysis platform to determine the current building settlement data, the current building settlement data and the historical building settlement data are screened, and the building settlement data within the preset range of the pipe network information is determined.

[0091] S203: Predict leakage according to building information, pipe network information and building settlement data.

[0092] The leakage situation may be a specific situation including a lot of information including the specific location of the gas leakage, the severity, the leakage rate and the specific cause of the gas leakage.

[0093] Specifically, the building information, pipe network information and building settlement data are integrated to form a unified data set, and machine learning methods are used to predict leakage.

[0094] For example, a model is established to identify the possible location of gas leakage, and the severity and rate of leakage are evaluated based on data such as pipeline pressure changes and building settlement rate. The specific cause of the gas leakage is analyzed by combining building information, pipeline information and building settlement data.

[0095] S204. Conduct a safety assessment based on building information, building settlement data and leakage conditions.

[0096] Safety assessment can be a quantitative assessment of the overall safety of natural gas supply.

[0097] Specifically, the data of building information, building settlement data and leakage situation are preprocessed and merged with the processed building information, building settlement data and leakage situation data into a comprehensive data set; the missing values ​​in the data set are filled and the outliers are processed; according to the characteristics and objectives of the data set, appropriate data analysis methods and algorithms are selected, such as regression analysis, classification algorithm, cluster analysis, etc.; using the selected methods and algorithms, according to the impact of building information, settlement data and leakage situation on gas supply safety, an assessment model for natural gas supply safety is established, and the safety of natural gas supply is quantitatively assessed using the established safety assessment model; the assessment results can be expressed in the form of safety index, risk level or probability.

[0098] Through the method provided in this embodiment, a comprehensive analysis of the pipeline information and building information is carried out, which helps to more accurately identify potential problems in gas supply; by analyzing the building settlement data within the preset range of the pipeline information, the risk of pipeline leakage caused by building structure problems is identified, thereby improving the accuracy and timeliness of leakage detection; combining the building information and building settlement data to comprehensively predict the leakage situation, making the judgment more scientific and accurate, and avoiding relying solely on preset thresholds to judge leakage; conducting a safety assessment based on the building information, building settlement data and leakage situation, achieving a comprehensive and scientific assessment, and being able to provide more valuable risk assessment results.

[0099] In some embodiments, the pipe network information is analyzed to determine the pipe network node locations and pipe network structure; an inspection plan is generated based on the building information, pipe network node locations and pipe network structure; an inspection report is obtained based on the inspection plan; and the inspection report is parsed to obtain building settlement data.

[0100] The location of a pipe network node can be the location of a connection point or a branch point in the pipe network.

[0101] The pipe network structure can be the specific structure of the connection relationship and layout method between the pipes in the pipe network.

[0102] The inspection plan can be a regular or irregular inspection plan formulated for monitoring and maintaining the pipeline network.

[0103] An inspection report can be a detailed report of the situations and problems found during the inspection by the inspectors after they have executed the inspection plan.

[0104] Specifically, based on the pipeline network information, geographic information analysis tools are used to identify nodes and structures, clarify the location of pipeline network nodes and the pipeline network structure, and formulate a reasonable inspection plan based on the building information, pipeline network node location and pipeline network structure. Inspection personnel perform inspections according to the plan and record relevant information. Finally, an inspection report is generated, and data analysis tools are used to extract building settlement data.

[0105] Through the method provided in this embodiment, the overall layout and node locations of the pipeline network can be accurately grasped to provide basic data support for the formulation of subsequent inspection plans; a scientific and reasonable inspection plan can be formulated to improve inspection efficiency and ensure that potential risk areas can be focused on during the inspection process; the inspection report obtains field data on building settlement to provide a basis for subsequent data analysis and risk assessment; the settlement data of the building is accurately obtained to provide a basis for risk assessment and subsequent decision-making; abnormal situations of building settlement are discovered in time to prevent potential safety hazards.

[0106] In some embodiments, based on the building settlement data and the pipeline network structure, the impact of the settlement on the deformation of the pipeline in the pipeline network information is analyzed; based on the analysis results, the pipeline deformation data within a preset time is predicted; based on the pipeline network structure and the pipeline deformation data, the theoretical pipeline gas supply loss is determined; the pipeline network monitoring data is obtained, and based on the pipeline network monitoring data and the theoretical pipeline gas supply loss, it is determined whether there is unreasonable gas consumption; if so, the leakage is predicted based on the building information, the unreasonable gas consumption and the inspection report.

[0107] Pipeline network information also includes pipeline network monitoring data.

[0108] The pipeline deformation data can be the degree of bending, stretching or compression of the pipeline, etc., which are obtained through numerical simulation or actual measurement.

[0109] The theoretical air supply loss amount can be the air supply loss amount caused by pipeline deformation calculated by fluid mechanics formula or empirical formula under specific pipeline network structure and pipeline deformation conditions.

[0110] The pipeline network monitoring data may include real-time data such as pipeline pressure and flow, which are obtained through the pipeline network monitoring system.

[0111] The unreasonable gas consumption may refer to a situation in which the gas loss caused by pipeline leakage in the actual gas supply process exceeds the theoretical gas loss.

[0112] Specifically, the building settlement data and pipeline network structure data are used to simulate the deformation of the pipeline during the building settlement process through numerical simulation or finite element analysis method; based on the analysis results, the time series prediction model is used to predict the pipeline deformation trend in the future, and the gas supply loss caused by the pipeline deformation is calculated based on the pipeline network structure and pipeline deformation data; the pipeline network monitoring data is obtained, and compared with the theoretical gas supply loss for analysis; if there is unreasonable gas consumption, the machine learning algorithm is used to predict possible leakage based on the building information, unreasonable gas consumption and inspection report.

[0113] In addition, in general buildings, the gas supply pipeline is built with several smart gas meters and pressure detection meters installed behind the pressure regulating device. The data from the smart gas meters are summarized to obtain the gas consumption data of a building, and the gas supply data of a building is obtained through the pressure detection meter. The gas consumption data and gas supply data are used as pipeline network monitoring data.

[0114] Through the method provided in this embodiment, by analyzing in detail the impact of building settlement on pipeline deformation, we can clearly understand which pipeline sections are most affected by settlement, as well as the degree and trend of deformation, and provide basic data for subsequent prediction and planning. Predicting pipeline deformation data within a preset time in the future can help us understand the development trend of pipeline deformation in advance, provide a scientific basis for long-term planning and management, and reduce gas supply losses and safety hazards caused by pipeline deformation. Determining the theoretical gas supply loss of the pipeline can quantify the impact of pipeline deformation on the gas supply system, evaluate potential economic losses, and provide data support for subsequent optimization and transformation of the gas supply system. By judging whether there is unreasonable consumption of gas supply, we can promptly discover potential leakage problems and avoid leakage expansion causing greater economic losses and social impacts. Predicting leakage can provide a scientific basis for emergency response and repair work, reduce the time and cost of leak repair, and ensure the safe and stable operation of the gas supply system. At the same time, through risk assessment of leakage, we can formulate more scientific and reasonable emergency response plans and improve the ability to respond to emergencies.

[0115] In some embodiments, historical inspection reports are obtained; historical building settlement data in historical inspection reports are extracted; historical building settlement data are sorted to obtain a building settlement data set; a building settlement model is established based on the settlement data set; the pipe network structure and the building settlement model are superimposed and analyzed to determine the pipeline branches affected by the settlement; based on the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each pipe in the pipe branch to obtain the pipe stress condition; based on the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each connection node position in the pipe branch to obtain the node stress condition; based on the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze the connection node position in the pipe branch to obtain the node stress condition; and based on the pipe stress condition and the node stress condition, the pipe deformation data within a preset time is predicted.

[0116] A historical inspection report may be a report generated by inspection personnel or related systems during past inspections; a historical inspection report may include information such as the condition of infrastructure such as buildings and pipelines, problems found, and repairs performed.

[0117] Historical building settlement data can be extracted from historical inspection reports or other relevant information, and is data on the settlement of the building over a period of time in the past, including information such as settlement amount, settlement time, and settlement location.

[0118] The building settlement data set may be a structured data set obtained by processing historical building settlement data.

[0119] The building settlement model can be established based on the building settlement data set and can predict the settlement trend of the building in the future.

[0120] A pipe branch can be part of a pipe network system; it can consist of one or more pipes.

[0121] The pipeline stress condition may be the stress and strain generated inside the pipeline when the pipeline is subjected to building settlement. The pipeline stress condition includes information such as the magnitude, direction, and distribution of the force.

[0122] The node stress condition can be the stress and strain generated inside the connection node in the pipe network system when it is affected by building settlement. The node stress condition includes information such as the magnitude and direction of the force, whether deformation or damage occurs, etc. The node can be the connection point between pipelines, such as valves, joints, welding points, etc.

[0123] Specifically, historical inspection reports are obtained from a preset database; data on building settlement is extracted from the inspection reports through text parsing or data extraction technology; the extracted building settlement data is cleaned, deduplicated, and formatted to form a structured building settlement data set; a building settlement prediction model is established based on the settlement data set using machine learning or statistical methods; the pipe network structure is superimposed on the building settlement model to analyze which pipeline branches may be affected by settlement; the building settlement model is used to simulate and analyze each pipeline and each connection node in the affected pipeline branch to obtain the pipeline stress condition and the node stress condition respectively; based on the pipeline stress condition and the node stress condition, numerical simulation or machine learning methods are used to predict the pipeline deformation data in the future.

[0124] Through the method provided in this embodiment, historical inspection reports are obtained to provide a data basis and make subsequent analysis possible; historical building settlement data are extracted to obtain specific building settlement information for subsequent analysis; the building settlement data set is sorted to form a structured data set for modeling and analysis; a building settlement model is established to provide the ability to predict building settlement and provide a tool for subsequent analysis; the pipe network structure and the building settlement model are superimposed and analyzed: the pipeline branches affected by settlement are identified to clarify the analysis goals; the pipelines and connection nodes within the pipeline branches are simulated and analyzed to obtain detailed stress conditions of the pipelines and nodes to provide data support for prediction; the pipeline deformation data within a preset time is predicted to obtain future pipeline deformation prediction data to provide early warning for gas supply safety.

[0125] In some embodiments, the pipeline material information is parsed to obtain the elastic modulus of the pipeline material and the moment of inertia of the pipeline cross section; the pipeline structure information is parsed to obtain the pipeline span and the distance from the fixed end of the pipeline to the pipeline measurement point; the load of the concentrated force generated by the settlement within a preset time is determined by combining the pipeline stress condition and the node stress condition;

[0126] Based on the elastic modulus of the pipeline material, the moment of inertia of the pipeline cross section, the pipeline span, the distance from the fixed end of the pipeline to the pipeline measurement point, and the load of the concentrated force generated by settlement within a preset time, the deflection of the pipeline at the pipeline measurement point is obtained, referring to the following formula (1):

[0127] (1)

[0128] in, is the deflection of the pipeline at the measuring point; is the concentrated force load generated by settlement within a preset time. is the pipe span, is the elastic modulus of the pipe material, is the moment of inertia of the pipe cross section; is the distance from the fixed end of the pipeline to the measuring point of the pipeline; is the preset time;

[0129] The deflection of the pipeline at the pipeline measuring point is taken as the pipeline deformation data.

[0130] Pipeline network information also includes pipeline material information and pipeline structure information.

[0131] Pipeline material information may be relevant data and information about the materials used in pipeline manufacturing, including the type, specification, chemical composition, mechanical properties (such as strength, toughness, elastic modulus, etc.) and possible other special properties (such as corrosion resistance, high temperature resistance, etc.) of the material.

[0132] Pipeline structural information can be data and information about the overall construction and layout of the pipeline, including the diameter, wall thickness, length, connection method (such as welding, flange connection, etc.), supporting structure (such as brackets, hangers, etc.) of the pipeline, and the layout and direction of the pipeline in the system.

[0133] The pipe span can be the straight-line distance between two adjacent support points of the pipe.

[0134] The distance from the fixed end of the pipeline to the measuring point of the pipeline can be the straight-line distance between the fixed support point of the pipeline (such as an anchor, a fixed bracket, etc.) and a specific measuring point on the pipeline.

[0135] Pipeline measurement points can be specific locations on the pipeline for various measurements. Pipeline measurement points are usually stored in a preset database based on engineering requirements or relevant standards. Pipeline measurement points may be key locations such as pipe bends, support points, and connections.

[0136] Specifically, the elastic modulus of the pipeline material and the moment of inertia of the pipeline cross section are extracted from the preset database, and the pipeline span is obtained from the pipeline design drawings preset in the database; the distance from the fixed end of the pipeline to the pipeline measurement point is obtained from the actual measurement, and the load of the concentrated force generated by settlement within the preset time is determined through numerical simulation in combination with the stress conditions of the pipeline and the node; the deflection of the pipeline at the pipeline measurement point is calculated using formula (1) based on the elastic modulus of the pipeline material, the moment of inertia of the pipeline cross section, the pipeline span, the distance from the fixed end of the pipeline to the pipeline measurement point, and the load of the concentrated force generated by settlement within the preset time; the deflection data at the pipeline measurement point is used as the deformation data of the pipeline.

[0137] Through the method provided in this embodiment, the pipeline material information is parsed to provide key physical parameters of the pipeline material, providing a data basis for the deflection calculation; the pipeline structure information is parsed to provide key geometric parameters of the pipeline structure, providing a data basis for the deflection calculation; the concentrated force load is determined to obtain the concentrated force load caused by the building settlement, providing the necessary input for the deflection calculation; the pipeline deflection is calculated to obtain the deflection data at the pipeline measuring point, which is used to evaluate the deformation of the pipeline and the gas supply safety.

[0138] In some embodiments, the theoretical gas supply loss of the pipeline is determined according to the pipeline network structure and pipeline deformation data, referring to the following formula (2):

[0139] (2)

[0140] in, is the theoretical air supply loss, is the influence coefficient of pipeline material and connection method on gas supply loss; It is the rate at which the theoretical air supply loss changes with deflection.

[0141] The pipeline structure also includes the connection method between pipelines.

[0142] Specifically, according to formula (2), the corresponding Value and value; preprocess the pipeline deformation data and convert the preprocessed pipeline deformation data Substitute into the formula to calculate the theoretical gas supply loss ; Conduct rationality analysis on the calculation results, such as comparing with historical data, checking abnormal values, etc., to ensure the accuracy of the calculation results.

[0143] Through the method provided in this embodiment, by determining the influence coefficient of pipeline material and connection method, we can quantify the influence of different pipeline materials and connection methods on the gas supply loss, and provide basic data for the subsequent calculation of theoretical gas supply loss; obtaining accurate pipeline deformation data is the key to calculating the theoretical gas supply loss; by preprocessing the deformation data, we can ensure the accuracy and reliability of the data, thereby improving the accuracy of the calculation results; by calculating the theoretical gas supply loss, we can quantify the influence of pipeline deformation on the gas supply system and evaluate the potential economic losses; at the same time, reasonable calculation results can provide data support for subsequent gas supply system optimization and transformation.

[0144] In some embodiments, the leakage location and the wind flow conditions within a preset range of the leakage location are predicted based on inspection reports, building settlement models and pipeline structures; the diffusion of the leaked gas is determined based on the leakage rate and the leakage location; the concentration accumulation of the leaked gas is obtained based on the wind flow conditions and the diffusion conditions; the leakage hazard when the leakage occurs is evaluated based on the concentration accumulation conditions; the diffusion conditions, concentration accumulation conditions and leakage hazard are used as leakage conditions.

[0145] The inspection report also includes the gas leakage rate.

[0146] Leak rate can be the rate at which gas leaks out of a pipe or other container.

[0147] The leakage location can be the predicted pipeline location where gas leakage may occur, which is determined through comprehensive judgment of building settlement analysis, pipe network structure analysis and inspection reports;

[0148] The preset range of the leakage position may be a range around the possible leakage position that is set in advance when predicting a gas leakage event.

[0149] The wind flow condition may be the wind flow condition within a preset range of the leakage location.

[0150] The diffusion situation can be the specific situation of how the gas is distributed and diffused in space over time starting from the leakage location after the gas leaks.

[0151] The concentration accumulation situation may be the specific situation of the concentration accumulation degree in a specific area after a gas leak.

[0152] Leakage hazard can be the potential degree of harm to human body, environment or property when a gas leakage occurs.

[0153] Specifically, based on inspection reports, building settlement models and pipe network structures, the geographic information system is used to predict the leakage location and simulate the wind flow conditions after the leakage. The diffusion of the leaked gas is simulated in combination with the leakage rate and leakage location. Based on the diffusion and wind flow conditions, the concentration accumulation of the leaked gas within a preset range is simulated, and the concentration accumulation of the leaked gas in the environment is quantified. Based on the concentration accumulation, the leakage hazard when the leakage occurs is evaluated.

[0154] Through the method provided in this embodiment, the leakage situation is predicted, and the potential leakage risk is discovered in advance, providing a basis for prevention and emergency response; the wind flow situation is predicted, and the diffusion path of the gas in the environment after the leakage is determined, providing a basis for subsequent analysis; the diffusion situation is determined, the diffusion range and speed of the leaked gas are quantified, and its impact on the surrounding environment is evaluated; the concentration accumulation situation is obtained, and the concentration accumulation of the leaked gas in a specific area is determined, providing a basis for risk assessment; the leakage hazard is evaluated, and the hazard when the leakage occurs is comprehensively evaluated, providing a scientific basis for emergency response and risk management.

[0155] In some embodiments, the leakage location is analyzed to determine the height of the leakage source; the gas concentration at any point in the three-dimensional space is determined according to the leakage rate of the gas and the height of the leakage source, referring to the following formula (2):

[0156] (2)

[0157] in, is a point in three-dimensional space The gas concentration at is the gas leakage rate; For gas Diffusion coefficient of direction; For gas Diffusion coefficient in direction; is the natural exponential function; is the height of the leakage source;

[0158] Point The gas concentration at is taken as the diffusion condition.

[0159] The height of the leakage source may be the vertical distance of the gas leakage location relative to the ground.

[0160] Specifically, the height information of the pipeline where the leak is located is analyzed using the geographic information system to determine the height of the leak source; the gas leakage rate is obtained from the gas supply management system; and the gas Direction and The diffusion coefficient in the direction; using the provided gas concentration calculation formula, the leakage rate, the height of the leakage source, the diffusion coefficient and the point in the three-dimensional space are calculated. Substitute into the formula to calculate and get the point The gas concentration at the location and the diffusion of the leaked gas.

[0161] Through the method provided in this embodiment, the leakage location is analyzed, the height of the leakage source is determined, and the height information of the leakage source is accurately obtained, providing basic data for calculating the gas concentration distribution; according to the leakage rate of the gas and the height of the leakage source, the gas concentration at any point in the three-dimensional space is determined, and the concentration distribution of the leaked gas in the three-dimensional space is quantified, providing a scientific basis for evaluating the severity and impact range of the leakage.

[0162] In some embodiments, the leakage location is analyzed to determine the height of the leakage source; according to the leakage location, the vertical distance between the center of the pipeline and the wall of the building is determined; according to the leakage location, the angular position of the leakage location in the pipeline is determined; according to the leakage rate, the height of the leakage source, the vertical distance and the angular position between the center of the pipeline and the wall of the building, the gas concentration at any point in the three-dimensional space is determined, referring to the following formula (3):

[0163] (3)

[0164] in, is a point in three-dimensional space The gas concentration at The leak is located at the angle of the pipeline; is the gas leakage rate; For gas Diffusion coefficient in direction; For gas Diffusion coefficient in direction; is the natural exponential function; is the height of the leakage source, It is the vertical distance between the center of the pipeline and the wall of the building; The leak location is The offset in direction; For Due to the vertical distance between the center of the pipeline and the wall of the building and the leakage position The additional diffusion effect caused by the offset in the direction.

[0165] The pipeline center position may be the center position of the cross section of the leakage position at the pipeline position.

[0166] The angular position may be the angle between the leak position and the center position of the pipe where the leak position is located.

[0167] Specifically, the height information of the pipeline where the leak is located is analyzed using the geographic information system to determine the height of the leak source; the shortest distance between the center of the pipeline and the building wall is determined through on-site measurement; the specific location of the leak point on the pipeline is analyzed to determine the angle between the leak location and the center of the pipeline where the leak is located; the gas leakage rate is obtained from the gas supply management system; and the gas flow rate at the gas supply management system is determined. Direction and The diffusion coefficient in the direction and the additional diffusion effect caused by the offset of the wall and the leakage point; using the provided gas concentration calculation formula, the leakage rate, the height of the leakage source, the diffusion coefficient and the point in the three-dimensional space are calculated. Substitute into the formula to calculate and get the point Gas concentration at the location and diffusion of leaked gas

[0168] Through the method provided in this embodiment, the leakage position is analyzed, the height of the leakage source is determined, basic data is provided for calculating the gas concentration distribution, and the accuracy and scientificity of the leakage analysis are improved; according to the leakage position, the vertical distance between the center position of the pipeline and the wall of the building is determined, and the influence of the wall on the gas diffusion is considered to improve the accuracy of the gas concentration calculation; according to the leakage position, the angular position of the leakage position in the pipeline is determined, and the influence of the pipeline direction on the gas diffusion is considered to improve the accuracy of the gas concentration calculation; according to the leakage rate, the height of the leakage source, the vertical distance and the angular position between the center position of the pipeline and the wall of the building, the gas concentration at any point in the three-dimensional space is determined, and the concentration distribution of the leaked gas in the three-dimensional space is quantified, providing a scientific basis for evaluating the severity and impact range of the leakage.

[0169] In some embodiments, the concentration accumulation of the leaked gas is obtained according to the wind flow and diffusion conditions, referring to the following formula (4):

[0170] (4);

[0171] in, The accumulated concentration within the preset time period of the preset range of the leakage location; The total volume of the preset range for the leak location; is a point in three-dimensional space The time-varying gas concentration at is the wind speed component in the gas diffusion direction;

[0172] The concentration accumulation amount within the preset range of the leakage position within the preset time period is taken as the concentration accumulation situation.

[0173] The total volume of the preset range of the leakage position may be the volume of the three-dimensional space range of the leakage position included in the analysis and assessment of the gas leakage situation.

[0174] The wind speed component in the gas diffusion direction may refer to the component of the wind speed in the gas diffusion direction, indicating the degree to which the gas is affected by the wind speed during the diffusion process.

[0175] Specifically, based on the gas concentration data within the preset range at different times, the wind speed data within the preset range, especially the wind speed component in the gas diffusion direction, the double integral formula (4) is used to calculate the concentration accumulation amount within the preset range within the preset time period, and the concentration accumulation of the leaked gas within the preset range and time period is obtained.

[0176] Through the method provided in this embodiment, by calculating the concentration accumulation, the overall concentration of the leaked gas within a preset range and time period is obtained, which provides a scientific basis for evaluating the severity and impact range of the leakage.

Claims

1. A gas supply identification system based on data monitoring, It is characterized in that include: Obtain community gas supply network information and community building information; Analyze the pipe network information and the building information to determine the building settlement data within a preset range of the pipe network information; Predicting leakage according to the building information, the pipe network information and the building settlement data; Performing a safety assessment based on the building information, the building settlement data and the leakage situation; The analyzing the pipe network information and the building information to determine the building settlement data within a preset range of the pipe network information includes: Analyze the pipe network information to determine the pipe network node locations and pipe network structure; Generate an inspection plan based on the building information, the location of the pipe network nodes and the pipe network structure; Obtain inspection reports based on inspection plans; Parsing the inspection report to obtain the building settlement data; The pipe network information also includes pipe network monitoring data; the leakage prediction based on the building information, the pipe network information and the building settlement data includes: Analyze the influence of settlement on pipe deformation in the pipe network information according to the building settlement data and the pipe network structure; and predict pipe deformation data within a preset time according to the analysis results; Determining theoretical pipeline gas supply loss according to the pipeline network structure and the pipeline deformation data; Obtaining pipeline network monitoring data, and judging whether there is unreasonable gas consumption based on the pipeline network monitoring data and theoretical gas supply loss in the pipeline; If so, predict the leakage according to the building information, the unreasonable gas consumption and the inspection report; The inspection report also includes a gas leakage rate; the leakage situation is predicted based on the building information, the unreasonable gas consumption and the inspection report, including: Obtaining historical inspection reports; extracting historical building settlement data from the historical inspection reports; sorting the historical building settlement data to obtain a building settlement data set; Establishing a building settlement model according to the settlement data set; Predicting the leakage location and the wind flow conditions within a preset range of the leakage location based on the inspection report, the building settlement model and the pipe network structure; Determining the diffusion of the leaked gas according to the leakage rate and the leakage position; According to the wind flow condition and the diffusion condition, the concentration accumulation condition of the leaked gas is obtained; Based on the concentration accumulation, assess the leakage hazard when leakage occurs; The diffusion condition, the concentration accumulation condition and the leakage hazard are taken as the leakage condition.

2. The system according to claim 1, It is characterized in that The step of analyzing the influence of the settlement on the pipe deformation in the pipe network information according to the building settlement data and the pipe network structure; and predicting the pipe deformation data within a preset time according to the analysis result, includes: Performing a superposition analysis on the pipe network structure and the building settlement model to determine the pipe branches affected by the settlement; According to the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each pipe in the pipe branch to obtain the stress condition of the pipe. According to the pipe network structure and the building settlement data, the building settlement model is used to simulate and analyze each connection node position in the pipeline branch to obtain the node stress condition. The pipeline deformation data within a preset time is predicted by combining the pipeline stress condition and the node stress condition.

3. The system according to claim 2, It is characterized in that The pipeline network information also includes pipeline material information and pipeline structure information; the pipeline deformation data within a preset time is predicted by combining the pipeline stress condition and the node stress condition, including: Analyze the pipeline material information to obtain the elastic modulus of the pipeline material and the moment of inertia of the pipeline cross section; Analyze the pipeline structure information to obtain the pipeline span and the distance from the pipeline fixed end to the pipeline measurement point; Determine the load of concentrated force generated by settlement within a preset time by combining the stress condition of the pipeline and the stress condition of the node; According to the elastic modulus of the pipeline material, the moment of inertia of the pipeline cross section, the pipeline span, the distance from the pipeline fixed end to the pipeline measuring point and the load of the concentrated force generated by the settlement within the preset time, the deflection of the pipeline at the pipeline measuring point is obtained, referring to the following formula: ； in, is the deflection of the pipeline at the measuring point of the pipeline; is the concentrated force load generated by settlement within a preset time. is the pipe span, is the elastic modulus of the pipe material, is the moment of inertia of the pipe cross section; is the distance from the fixed end of the pipeline to the measuring point of the pipeline; is the preset time; The deflection of the pipeline at the pipeline measuring point is used as the pipeline deformation data.

4. The system according to claim 3, It is characterized in that The pipeline structure also includes a connection method between pipelines; the theoretical gas supply loss of the pipeline is determined based on the pipeline network structure and the pipeline deformation data, referring to the following formula: ； in, is the theoretical air supply loss, is the influence coefficient of pipeline material and connection method on gas supply loss; It is the rate at which the theoretical air supply loss changes with deflection.

5. The system according to claim 1, It is characterized in that Determining the diffusion of the leaked gas according to the leakage rate and the leakage position includes: Analyze the leakage location and determine the height of the leakage source; According to the gas leakage rate and the height of the leakage source, the gas concentration at any point in the three-dimensional space is determined, referring to the following formula: ； in, is a point in three-dimensional space The gas concentration at is the gas leakage rate; For gas Diffusion coefficient in direction; For gas Diffusion coefficient in direction; is the natural exponential function; is the height of the leakage source; Point The gas concentration at is taken as the diffusion condition.

6. The system according to claim 3, It is characterized in that The pipeline structure information also includes the center position of the pipeline; and determining the diffusion of the leaked gas according to the leakage rate and the leakage position includes: Analyze the leakage location and determine the height of the leakage source; According to the leakage position, determine the vertical distance between the center position of the pipeline and the wall of the building; According to the leakage position, determining the angular position of the leakage position in the pipeline; According to the leakage rate, the height of the leakage source, the vertical distance between the center of the pipeline and the wall of the building, and the angular position, the gas concentration at any point in the three-dimensional space is determined, referring to the following formula: ； in, is a point in three-dimensional space The gas concentration at The leakage position is located at an angle in the pipeline; is the gas leakage rate; For gas Diffusion coefficient in direction; For gas Diffusion coefficient in direction; is the natural exponential function; is the height of the leakage source, is the vertical distance between the center of the pipeline and the wall of the building; The leak location is The offset in direction; For Due to the vertical distance between the center of the pipeline and the wall of the building and the leakage position The additional diffusion effect caused by the offset in the direction.

7. A system according to any one of claims 5 to 6, It is characterized in that According to the wind flow and the diffusion conditions, the concentration accumulation of the leaked gas is obtained, referring to the following formula; ； in, The accumulated concentration within the preset time period of the preset range of the leakage location; The total volume of the preset range for the leak location; is a point in three-dimensional space The time-varying gas concentration at is the wind speed component in the gas diffusion direction; The concentration accumulation amount within the preset range of the leakage position within the preset time period is taken as the concentration accumulation situation.

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