Gas alarm system based on intelligent linkage control of gas meter

Abstract

The invention belongs to the technical field of gas monitoring and alarming, and particularly relates to a gas meter intelligent linkage control-based gas alarming system, which comprises a gas concentration sensing module, a gas leakage intelligent judgment module, a linkage decision generation module, a gas meter control execution module and a user interaction alarming end, gas concentration data in a gas use environment are collected in real time through the gas concentration sensing module, the gas leakage intelligent judgment module conducts intelligent analysis based on the collected data so as to judge the risk level of gas leakage, and the linkage decision generation module generates a corresponding linkage control decision according to leakage risk level information. And the gas meter control execution module performs corresponding control operation on the gas meter based on the decision instruction, so that the accident occurrence risk is greatly reduced, the loss expansion is avoided, the gas leakage alarm accuracy is remarkably improved, the trouble brought to a user by misjudgment is reduced, and the intelligent and automatic levels are high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas monitoring and alarming, in particular to a gas alarm system based on intelligent linkage control of a gas meter. BACKGROUND

[0002] Gas alarm refers to a process of sensing the change of gas concentration in the environment through a special detection device, triggering an alarm action when the concentration reaches or exceeds a preset safety threshold, to remind people of possible dangerous situations such as gas leakage; the traditional gas alarm system has a single function, mainly focusing on the detection and alarm of gas leakage, and when gas leakage is detected, it can only issue an alarm sound to remind the user, lacking a linkage mechanism with the gas meter, and unable to automatically shut off the gas supply in time, posing a great safety hazard. Currently, some systems with linkage function have a simple linkage mode, which directly shuts off the gas meter once gas leakage is detected, without considering the severity and actual situation of the leakage, which may cause unnecessary interruption of gas supply, causing inconvenience to users, and unable to analyze and accurately feedback the risk of gas use and the status of the gas meter, which is not conducive to ensuring the safety of gas use. In view of the above technical defects, a solution is proposed. SUMMARY

[0003] The present application aims to provide a gas alarm system based on intelligent linkage control of a gas meter, which solves the problem of lack of effective linkage mechanism with the gas meter in the prior art, and inability to analyze and accurately feedback the risk of gas use and the status of the gas meter, which is not conducive to ensuring the safety of gas use, and low level of intelligence and automation.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The gas alarm system based on intelligent linkage control of a gas meter comprises a gas concentration sensing module, a gas leakage intelligent judgment module, a linkage decision generation module, a gas meter control execution module and a user interactive alarm terminal; the gas concentration sensing module collects gas concentration data in the gas use environment in real time, and transmits the collected data to the gas leakage intelligent judgment module; the gas leakage intelligent judgment module intelligently analyzes the data transmitted by the gas concentration sensing module, judges the risk level of gas leakage, and transmits the judgment result to the linkage decision generation module; The linkage decision generation module generates corresponding linkage control decisions according to the leakage risk level information transmitted by the gas leakage intelligent judgment module and in combination with preset linkage strategies, and sends the decision instructions to the gas meter control execution module; the gas meter control execution module receives the decision instructions sent by the linkage decision generation module, and performs corresponding control operations on the gas meter; and the user interactive alarm end feeds back the leakage risk level information, linkage control decision information and gas meter control execution information to the user, and receives the operation instructions of the user.

[0005] Further, the gas concentration sensing module detects the concentration change of gas in the air by using a high-precision gas sensor, converts the gas concentration into an electric signal, processes the signal through a signal conditioning circuit including amplification and filtering, converts the analog signal into a digital signal through an analog-to-digital converter, and sends the digital signal to the gas leakage intelligent judgment module according to a predetermined communication protocol.

[0006] Further, after receiving the gas concentration data, the gas leakage intelligent judgment module compares the current concentration value with the preset safety concentration threshold value, and if the current concentration exceeds the safety threshold value, further analyzes the trend of the concentration change, including the speed and amplitude of the concentration rise, and comprehensively analyzes the historical data and environmental factors, divides the leakage risk level into three levels of low, medium and high according to the analysis result, and sends the risk level information to the linkage decision generation module.

[0007] Further, the linkage decision generation module internally stores a plurality of preset linkage strategies, and formulates corresponding control measures for different risk levels, and matches the preset strategies according to the leakage risk level information sent by the gas leakage intelligent judgment module; the linkage decision generation module encodes the generated decision instructions in a specific format and sends them to the gas meter control execution module.

[0008] Further, the gas meter control execution module is connected to the gas meter through a communication interface, and receives the decision instructions sent by the linkage decision generation module in real time; after receiving the instructions, the instructions are parsed and verified, and then the valve of the gas meter is controlled to perform corresponding actions according to the requirements of the instructions, including opening, closing and adjusting the flow.

[0009] Further, the user interactive alarm end is communicatively connected to the gas use risk assessment module, the gas use risk assessment module assesses and analyzes the gas use risk in the detection period, generates a gas use high-risk signal or a gas use low-risk signal through analysis, and sends the gas use high-risk signal or the gas use low-risk signal to the user interactive alarm end, and the user interactive alarm end issues a corresponding early warning when receiving the gas use high-risk signal.

[0010] Further, the specific analysis process of the gas use risk assessment module is as follows: In the detection period, if the gas leakage intelligent judgment module outputs a high-level leakage risk level information or cannot complete the corresponding control operation for the gas meter, a gas use high-risk signal is generated in real time; if no high-level leakage risk level information is output in the detection period and the corresponding control operation for the gas meter can be completed, the output times of the medium-level and low-level leakage risk level information are marked as a medium-risk detection value and a low-risk detection value respectively, the medium-risk detection value and the low-risk detection value are weighted and summed to obtain a use risk preliminary evaluation value, and the use risk preliminary evaluation value is compared with a preset use risk preliminary evaluation threshold value; if the use risk preliminary evaluation value exceeds the preset use risk preliminary evaluation threshold value, a gas use high-risk signal is generated.

[0011] Further, if the use risk preliminary evaluation value does not exceed the preset use risk preliminary evaluation threshold value, all control operations for the gas meter in the detection period are obtained, all control operations are classified, and the total number of control operations of the corresponding type in the detection period is marked as a control frequency value; The number of times that the corresponding type control operation is not completed within a specified time is compared with the corresponding control frequency value to obtain a control non-timely value, and the control non-timely value is compared with a corresponding preset control non-timely threshold value; if the control non-timely value exceeds the corresponding preset control non-timely threshold value, the corresponding type control operation is marked as an abnormal control operation; If the control non-timely value exceeds the corresponding preset control non-timely threshold value, the average execution time length for the corresponding type control operation in the detection period is compared with a corresponding preset execution time length threshold value to obtain an execution average time value, and the maximum execution time length for the corresponding type control operation in the detection period is compared with the corresponding preset execution time length threshold value to obtain an execution amplitude time value; The control non-timely value, the execution average time value and the execution amplitude time value are weighted and summed to obtain an operation execution detection value, and the operation execution detection value is compared with a corresponding preset operation execution detection threshold value; if the operation execution detection value exceeds the corresponding preset operation execution detection threshold value, the corresponding type control operation is marked as an abnormal control operation; if there is an abnormal control operation in the detection period, a gas use high-risk signal is generated; if there is no abnormal control operation in the detection period, a gas use low-risk signal is generated.

[0012] Further, the gas use risk assessment module is communicatively connected to the gas meter hidden danger decision module, the gas use risk assessment module sends a gas use low-risk signal to the gas meter hidden danger decision module, the gas meter hidden danger decision module analyzes the condition of the gas meter when receiving the gas use low-risk signal, generates a gas meter safety signal or a gas meter danger signal through analysis, and sends the gas meter safety signal or the gas meter danger signal to the user interactive alarm terminal; the user interactive alarm terminal issues a corresponding early warning when receiving the gas meter danger signal.

[0013] Further, the specific analysis process of the gas meter hidden danger decision module is as follows: The production date and use date of the gas meter are obtained, time difference calculation is performed on the production date and use date and the current date to obtain a gas meter production inspection value and a gas meter use inspection value, the gas meter production inspection value and the gas meter use inspection value are respectively compared with a preset gas meter production inspection threshold value and a preset gas meter use inspection threshold value, if the gas meter production inspection value or the gas meter use inspection value exceeds the corresponding preset threshold value, a gas meter danger signal is generated; If the gas meter production inspection value and the gas meter use inspection value do not exceed the corresponding preset threshold value, the temperature and humidity of the environment where the gas meter is located are collected, the deviation of the temperature from the set suitable temperature standard value is marked as a gas meter temperature measurement value, and the humidity is obtained in the same way to obtain a gas meter humidity measurement value; and the oil pollution concentration of the environment where the gas meter is located is marked as a gas meter pollution measurement value, the gas meter temperature measurement value, the gas meter humidity measurement value and the gas meter pollution measurement value are weighted and summed to obtain a gas meter external condition value, the gas meter external condition value is compared with a preset gas meter external condition threshold value, if the gas meter external condition value exceeds the preset gas meter external condition threshold value, it is judged that the gas meter is in an external non-beneficial state; The total length of time when the gas meter is in the external non-beneficial state in the historical stage is obtained and marked as a non-beneficial characteristic value, the gas meter production inspection value, the gas meter use inspection value and the non-beneficial characteristic value are weighted and summed to obtain a gas meter hidden danger decision value, the gas meter hidden danger decision value is compared with a preset gas meter hidden danger decision threshold value, if the gas meter hidden danger decision value exceeds the preset gas meter hidden danger decision threshold value, a gas meter danger signal is generated; if the gas meter hidden danger decision value does not exceed the preset gas meter hidden danger decision threshold value, a gas meter safety signal is generated.

[0014] Compared with the prior art, the beneficial effects of the present application are: 1、In the present application, the gas concentration in the gas use environment is collected in real time by the gas concentration sensing module, the gas leakage intelligent judgment module performs intelligent analysis based on the collected data to judge the risk level of gas leakage, the linkage decision generation module generates corresponding linkage control decisions according to the leakage risk level information, and the gas meter control execution module performs corresponding control operations on the gas meter based on the decision instructions, greatly reducing the risk of accidents, significantly improving the accuracy of gas leakage alarm, and improving the intelligence and automation level; 2. In this invention, the gas usage risk assessment module evaluates and analyzes the gas usage risk during the detection period. When a high-risk gas usage signal is generated, corresponding inspection and maintenance operations are performed, and gas usage supervision is strengthened to avoid safety accidents and ensure the safety of subsequent gas usage. When a low-risk gas usage signal is generated, the gas meter hazard decision module analyzes the gas meter status. When a gas meter danger signal is generated, the gas meter is replaced or subsequent inspection, maintenance, and usage supervision of the gas meter are strengthened to further reduce subsequent gas usage hazards. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a system block diagram of Embodiment 1 of the present invention; Figure 2 This is a system block diagram of Embodiments 2 and 3 of the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: As Figure 1 As shown, the gas alarm system based on intelligent linkage control of gas meters proposed in this invention includes a gas concentration sensing module, a gas leak intelligent judgment module, a linkage decision generation module, a gas meter control execution module, and a user interaction alarm terminal. The gas concentration sensing module collects gas concentration data in the gas usage environment in real time and transmits the collected data to the gas leak intelligent judgment module. The high-precision sensor and signal processing circuit ensure the accuracy and reliability of the gas concentration data, providing a solid foundation for subsequent risk assessment and linkage control. The real-time data acquisition function can detect gas leaks in a timely manner, saving valuable time for subsequent handling. Specifically, the gas concentration sensing module uses a high-precision gas sensor to detect changes in the concentration of gas in the air, converts the gas concentration into an electrical signal, and performs amplification and filtering through a signal conditioning circuit to improve the signal quality and stability. Then, the analog signal is converted into a digital signal by an analog-to-digital converter, and the digital signal is sent to the gas leak intelligent judgment module according to a predetermined communication protocol.

[0018] The gas leakage intelligent judgment module intelligently analyzes the data transmitted by the gas concentration perception module, judges the risk level of gas leakage, and transmits the judgment result to the linkage decision generation module. Through comprehensive consideration of multiple factors, the risk is judged, the severity of gas leakage can be more accurately judged, and the misjudgment that may occur when only a single concentration value is used for judgment is avoided, providing a scientific basis for linkage decision-making. Specifically, after receiving the gas concentration data, the gas leakage intelligent judgment module first compares the current concentration value with the preset safety concentration threshold. If the current concentration exceeds the safety threshold, it further analyzes the trend of concentration change, such as the speed and amplitude of concentration rise, and also combines historical data and environmental factors (such as temperature, humidity, etc.) for comprehensive analysis to more accurately assess the risk level of gas leakage. According to the analysis result, the leakage risk level is divided into low, medium and high levels, and the risk level information is sent to the linkage decision generation module.

[0019] The linkage decision generation module generates corresponding linkage control decisions according to the leakage risk level information transmitted by the gas leakage intelligent judgment module, and sends the decision instructions to the gas meter control execution module. The preset linkage strategy can take appropriate control measures according to different risk levels, realizing intelligent linkage control and improving the safety and reliability of the system; specifically as follows: The linkage decision generation module internally stores multiple preset linkage strategies, and formulates corresponding control measures for different risk levels. When receiving the leakage risk level information sent by the gas leakage intelligent judgment module, it matches according to the preset strategy; for example, when the risk level is low, only warning information may be sent; when the risk level is medium, in addition to sending warnings, the gas meter will also be controlled to reduce gas supply flow; when the risk level is high, an emergency alarm will be immediately sent and the gas meter will be controlled to shut off gas supply; the linkage decision generation module encodes the generated decision instructions in a specific format and sends them to the gas meter control execution module.

[0020] The gas meter control execution module receives the decision instructions sent by the linkage decision generation module and performs corresponding control operations on the gas meter. Accurate control operations can effectively regulate gas supply in a timely manner, quickly shut off gas in the event of gas leakage, and prevent further expansion of the accident; Specifically, the gas meter control execution module is connected to the gas meter through a communication interface and receives the decision instructions sent by the linkage decision generation module in real time. After receiving the instructions, the instructions are parsed and verified to ensure their correctness and effectiveness, and then the valve of the gas meter is controlled to perform corresponding actions such as opening, closing or adjusting flow according to the requirements of the instructions.

[0021] The user-interactive alarm terminal provides users with information on the leakage risk level, linkage control decision information, and gas meter control execution information, as well as receiving user operation commands. Timely information feedback allows users to understand the gas leak situation and the system's handling measures as soon as possible, improving users' safety awareness and response capabilities. Furthermore, the user-interactive function facilitates user operation and management of the system.

[0022] It should be noted that the user-interactive alarm terminal can intuitively display relevant system information to users through displays, sound prompts, and other means. When the system detects a gas leak and issues an alarm, the module will display the alarm information in a prominent manner, such as flashing lights and high-decibel alarm sounds. At the same time, it will display detailed information such as gas concentration, risk level, and linkage control measures on the display screen. Users can also operate the system through buttons, touch screens, etc., such as confirming alarms, canceling alarms, and querying historical records.

[0023] Example 2: Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the user interaction alarm terminal is connected to the gas usage risk assessment module. The gas usage risk assessment module assesses and analyzes the gas usage risk during the detection period and generates a high-risk gas usage signal or a low-risk gas usage signal through analysis. Furthermore, high-risk or low-risk gas usage signals are sent to the user-interactive alarm terminal. Upon receiving a high-risk signal, the terminal issues a corresponding warning to remind users to promptly perform necessary inspections and maintenance, strengthen gas usage supervision, prevent safety accidents, and ensure subsequent gas usage safety. The specific analysis process of the gas usage risk assessment module is as follows: During the detection period, if the intelligent gas leak detection module outputs a high-level leak risk level information or fails to complete the corresponding control operation for the gas meter, it indicates that the gas use risk is high, and a high-risk gas use signal is generated in real time; if no high-level leak risk level information is output during the detection period and the corresponding control operation for the gas meter can be completed, the number of outputs of medium-level leak risk level information and low-level leak risk level information are marked as medium-risk leak detection value and low-risk leak detection value, respectively. The initial risk assessment value is obtained by weighted summation of the intermediate and low detection values ​​of leakage. Specifically, a corresponding preset weight coefficient is assigned to each of the intermediate and low detection values ​​of leakage, and each of the intermediate and low detection values ​​is multiplied by its corresponding preset weight coefficient. The two sets of products are then summed to obtain the initial risk assessment value. It should be noted that the larger the initial risk assessment value of usage, the higher the initial risk of gas usage during the detection period. The use risk preliminary evaluation value is compared with a preset use risk preliminary evaluation threshold value. If the use risk preliminary evaluation value exceeds the preset use risk preliminary evaluation threshold value, it is indicated that the gas use risk in the detection period is relatively high, and a gas use high-risk signal is generated.

[0024] Further, if the use risk preliminary evaluation value does not exceed the preset use risk preliminary evaluation threshold value, all control operations for the gas meter in the detection period are obtained, all control operations are classified (such as opening and closing of the valve), and the total number of control operations of the corresponding type in the detection period is marked as a control frequency value; The number of times that the corresponding type of control operation is not completed within a specified time is compared with the corresponding control frequency value to obtain a control non-timeliness value. The control non-timeliness value is compared with a corresponding preset control non-timeliness threshold value. If the control non-timeliness value exceeds the corresponding preset control non-timeliness threshold value, it is indicated that the control performance for the corresponding type of control operation in the detection period is poor, and the corresponding type of control operation is marked as an abnormal control operation. If the control non-timeliness value exceeds the corresponding preset control non-timeliness threshold value, the average execution time for the corresponding type of control operation in the detection period is compared with a corresponding preset execution time threshold value to obtain an execution uniformity value, and the maximum execution time for the corresponding type of control operation in the detection period is compared with the corresponding preset execution time threshold value to obtain an execution amplitude value. The operation detection value is calculated by weighted summation of the control non-timeliness value, the execution uniformity value, and the execution amplitude value. That is, the control non-timeliness value, the execution uniformity value, and the execution amplitude value are respectively assigned corresponding preset weight coefficients, and the control non-timeliness value, the execution uniformity value, and the execution amplitude value are respectively multiplied by the corresponding preset weight coefficients, and the sum of the three sets of product results is marked as the operation detection value. It should be noted that the larger the operation detection value, the worse the comprehensive control performance for the corresponding type of control operation in the detection period. The operation detection value is compared with a corresponding preset operation detection threshold value. If the operation detection value exceeds the corresponding preset operation detection threshold value, it is indicated that the comprehensive control performance for the corresponding type of control operation in the detection period is poor, and the corresponding type of control operation is marked as an abnormal control operation. If there is an abnormal control operation in the detection period, it is indicated that the gas use risk in the detection period is relatively high, and a gas use high-risk signal is generated. If there is no abnormal control operation in the detection period, it is indicated that the comprehensive gas use risk in the detection period is relatively low, and a gas use low-risk signal is generated.

[0025] Embodiment Three: As Figure 2As shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that the gas usage risk assessment module is communicatively connected to the gas meter hazard decision module. The gas usage risk assessment module sends a low-risk gas usage signal to the gas meter hazard decision module. When the gas meter hazard decision module receives the low-risk gas usage signal, it performs decision analysis on the gas meter status and generates a gas meter safety signal or a gas meter danger signal through analysis. Furthermore, it sends gas meter safety signals or gas meter danger signals to the user interaction alarm terminal. When the user interaction alarm terminal receives a gas meter danger signal, it issues a corresponding warning to remind the user to replace the gas meter as needed. This strengthens the subsequent inspection, maintenance, and usage supervision of the gas meter, further reducing potential gas usage hazards and ensuring the safety of users' lives and property. It has a high level of intelligence. The specific analysis process of the gas meter hazard decision-making module is as follows: The gas meter's production date and usage date are obtained. The time difference between the production date and usage date and the current date is calculated to obtain the gas meter's pre-production inspection value and gas meter usage inspection value. The gas meter's pre-production inspection value and gas meter usage inspection value are compared with the preset gas meter pre-production inspection threshold and preset gas meter usage inspection threshold respectively. If the gas meter's pre-production inspection value or gas meter usage inspection value exceeds the corresponding preset threshold, it indicates that the gas meter's current quality condition is poor and the overall potential use hazards are high, and a gas meter danger signal is generated. If neither the gas meter's production inspection value nor its usage inspection value exceeds the corresponding preset threshold, the temperature and humidity of the environment where the gas meter is located are collected. The deviation of the temperature from the set suitable temperature standard value is marked as the gas meter temperature measurement value. Similarly, the gas meter humidity measurement value is obtained. The oil pollution concentration in the environment where the gas meter is located is also recorded as the gas meter pollution measurement value. The external condition value of the gas meter is calculated by weighting and summing the gas meter temperature measurement, gas meter wet measurement, and gas meter contamination measurement. Specifically, each of the three gas meter temperature measurement, gas meter wet measurement, and gas meter contamination measurement is assigned a corresponding preset weight coefficient, and then each of these values ​​is multiplied by its respective preset weight coefficient. The sum of these three products is then marked as the gas meter's external condition value. It should be noted that the larger the external condition value of the gas meter, the worse the real-time environmental conditions of the gas meter, and the greater the damage to the gas meter. The gas meter's external condition value is compared with the preset gas meter external condition threshold. If the gas meter's external condition value exceeds the preset gas meter external condition threshold, it indicates that the real-time condition of the gas meter's environment is poor and causes significant damage to the gas meter. In this case, the gas meter is judged to be in an unfavorable external condition. The total duration of the gas meter in an unfavorable external condition in the historical period is obtained and marked as an unfavorable characteristic value. The gas meter hidden danger decision value is calculated by weighted sum of the gas meter production inspection value, the gas meter use inspection value and the non-benefit characteristic value, that is, the corresponding preset weight coefficients are respectively assigned to the gas meter production inspection value, the gas meter use inspection value and the non-benefit characteristic value, and the gas meter production inspection value, the gas meter use inspection value and the non-benefit characteristic value are respectively multiplied by the corresponding preset weight coefficients, and the sum of the three groups of product results is marked as the gas meter hidden danger decision value; it should be noted that the larger the value of the gas meter hidden danger decision value, the worse the current quality condition of the gas meter, and the higher the comprehensive use hidden danger; The gas meter hidden danger decision value is compared with the preset gas meter hidden danger decision threshold value, if the gas meter hidden danger decision value exceeds the preset gas meter hidden danger decision threshold value, it indicates that the current quality condition of the gas meter is poor, and the comprehensive use hidden danger is high, and a gas meter danger signal is generated; if the gas meter hidden danger decision value does not exceed the preset gas meter hidden danger decision threshold value, it indicates that the current quality condition of the gas meter is good, and the comprehensive use hidden danger is low, and a gas meter safety signal is generated.

[0026] The working principle of the present application is as follows: during use, the gas concentration data in the gas use environment is collected in real time by the gas concentration sensing module, the gas leakage intelligent judgment module performs intelligent analysis based on the collected data to judge the risk level of gas leakage, the linkage decision generation module generates corresponding linkage control decisions according to the leakage risk level information, and the gas meter control execution module performs corresponding control operations on the gas meter based on the decision instructions, so that effective measures such as flow adjustment or supply cutoff can be taken quickly and accurately when gas leakage occurs, the accident risk is greatly reduced, the loss is avoided from being enlarged, the mode of relying only on a single factor for judgment is abandoned, multi-dimensional comprehensive analysis makes the evaluation more scientific and accurate, reduces the disturbance to users caused by misjudgment, and the intelligentization and automation level are high.

[0027] In the technical scheme of the present application, the threshold value or the preset value, the preset range and the like are set for result comparison and analysis, so as to determine whether it is good or bad, and the size of the value is determined according to the large model analysis of sample data and the combination of artificial experience to set the input storage, and appropriate adjustment can be made through seasonal or rational influence conditions; and the preset weight coefficient, the influence factor and the like are set according to the influence size of each parameter on the result to allocate specific values to finally reflect the influence condition of the result, and the input storage is set through the large model analysis of sample data and the combination of artificial experience, and appropriate adjustment can be made through seasonal or rational influence conditions.

[0028] The preferred embodiments of the application disclosed above are only to facilitate the understanding of the application, and the preferred embodiments do not describe all the details and are not limited to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A gas alarm system based on intelligent linkage control of gas meters, characterized in that, It includes a gas concentration sensing module, a gas leak intelligent judgment module, a linkage decision generation module, a gas meter control execution module, and a user interaction alarm terminal; the gas concentration sensing module collects gas concentration data in the gas usage environment in real time, and the gas leak intelligent judgment module intelligently analyzes the data transmitted by the gas concentration sensing module to determine the risk level of gas leak. The linkage decision generation module generates corresponding linkage control decision blocks based on the leakage risk level information transmitted by the gas leakage intelligent judgment module and in combination with preset linkage strategies; the gas meter control execution module receives the decision instructions sent by the linkage decision generation module and performs corresponding control operations on the gas meter; the user interaction alarm terminal provides the user with feedback on leakage risk level information, linkage control decision information, and gas meter control execution information, as well as information for receiving user operation instructions.

2. The gas alarm system based on intelligent linkage control of gas meters according to claim 1, characterized in that, The gas concentration sensing module uses a high-precision gas sensor to detect changes in the concentration of gas in the air, converts the gas concentration into an electrical signal, performs signal conditioning circuitry including amplification and filtering, and converts the analog signal into a digital signal through an analog-to-digital converter. The digital signal is then sent to the gas leak intelligent judgment module according to a predetermined communication protocol.

3. The gas alarm system based on intelligent linkage control of gas meters according to claim 1, characterized in that, After receiving gas concentration data, the intelligent gas leak detection module compares the current concentration value with the preset safe concentration threshold. If the current concentration exceeds the safe threshold, it further analyzes the trend of concentration change and conducts a comprehensive analysis combining historical data and environmental factors. Based on the analysis results, the leak risk level is divided into three levels: low, medium, and high.

4. The gas alarm system based on intelligent linkage control of gas meters according to claim 1, characterized in that, The linkage decision generation module stores a variety of preset linkage strategies and formulates corresponding control measures for different risk levels. When it receives the leakage risk level information sent by the gas leakage intelligent judgment module, it matches it according to the preset strategy. The linkage decision generation module encodes the generated decision instructions in a specific format and sends them to the gas meter control execution module.

5. The gas alarm system based on intelligent linkage control of gas meters according to claim 1, characterized in that, The gas meter control execution module connects to the gas meter via a communication interface and receives decision commands sent by the linkage decision generation module in real time. Upon receiving a command, it parses and verifies the command, and then controls the gas meter valve to perform the corresponding action according to the command requirements.

6. The gas alarm system based on intelligent linkage control of gas meters according to claim 1, characterized in that, The user interaction alarm terminal communicates with the gas usage risk assessment module. The gas usage risk assessment module evaluates and analyzes the gas usage risk during the detection period and sends a high-risk or low-risk gas usage signal to the user interaction alarm terminal.

7. The gas alarm system based on intelligent linkage control of gas meters according to claim 6, characterized in that, The specific analysis process of the gas usage risk assessment module is as follows: During the detection period, if the intelligent gas leak detection module outputs a high-level leak risk level or fails to perform the corresponding control operation on the gas meter, a high-risk gas usage signal is generated in real time. If no high-level leak risk level is output during the detection period and the corresponding control operation can be performed on the gas meter, the weighted sum of the leak detection value and the leak risk low detection value is used to calculate the initial risk assessment value. If the initial risk assessment value exceeds the preset initial risk assessment threshold, a high-risk gas usage signal is generated.

8. The gas alarm system based on intelligent linkage control of gas meters according to claim 7, characterized in that, If the initial risk assessment value does not exceed the preset initial risk assessment threshold, all control operations for the gas meter during the detection period are obtained, and all control operations are classified. If the control non-timely value exceeds the corresponding preset control non-timely threshold, the corresponding type of control operation is marked as an abnormal control operation. If the control delay value exceeds the corresponding preset control delay threshold, the operation execution value is calculated by weighted summation of the control delay value, the average execution time value, and the execution amplitude time value. If the operation execution value exceeds the corresponding preset operation execution threshold, the corresponding type of control operation is marked as an abnormal control operation. If an abnormal control operation exists within the detection period, a high-risk gas use signal is generated. If no abnormal control operation exists within the detection period, a low-risk gas use signal is generated.

9. The gas alarm system based on intelligent linkage control of gas meters according to claim 6, characterized in that, The gas usage risk assessment module communicates with the gas meter hazard decision module. When the gas meter hazard decision module receives a low-risk gas usage signal, it performs decision analysis on the gas meter status, generates a gas meter safety signal or a gas meter danger signal through analysis, and sends the gas meter safety signal or gas meter danger signal to the user interactive alarm terminal.

10. The gas alarm system based on intelligent linkage control of gas meters according to claim 9, characterized in that, The specific analysis process of the gas meter hazard decision module is as follows: If the gas meter's pre-installation inspection value or the gas meter's usage inspection value exceeds the corresponding preset threshold, a gas meter hazard signal is generated; if neither the gas meter's pre-installation inspection value nor the gas meter's usage inspection value exceeds the corresponding preset threshold, a gas meter hazard decision value is calculated by weighted summation of the gas meter's pre-installation inspection value, the gas meter's usage inspection value, and non-adverse characteristic values. If the gas meter hazard decision value exceeds the preset gas meter hazard decision threshold, a gas meter hazard signal is generated; otherwise, a gas meter safety signal is generated.

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