Gas pressure regulating box safety early warning system based on Internet of Things

Abstract

The present invention relates to the technical field of a gas pressure regulating box, and in particular to a gas pressure regulating box safety early warning system based on the Internet of Things, comprising a data detection unit for detecting gas concentration and gas pressure data, a data processing unit for screening the gas concentration and gas pressure data obtained by the data detection unit based on a preset data screening standard, a cloud storage unit for receiving and storing the filtered gas concentration and gas pressure data output by the data processing unit, a data analysis unit for calculating a comprehensive evaluation value based on the gas concentration and gas pressure data of an internal pipeline of the gas pressure regulating box, and generating an evaluation value curve based on the evaluation value, and judging whether the operating state of the gas pressure regulating box meets the standard based on the absolute value of the slope of the evaluation value curve, and a cloud early warning unit for issuing an alarm, thereby effectively improving the early warning efficiency of the system described in the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of a gas pressure regulating box, and in particular to a gas pressure regulating box safety early warning system based on the Internet of Things. Background Art

[0002] The main function of the gas pressure regulating box is to regulate the input high-pressure gas to obtain the required low-pressure gas output. It is usually used in industrial and civil applications, such as supplying gas water heaters, boilers, ovens and other household appliances, as well as gas heating systems and gas engines in industrial production. The gas pressure regulating box can ensure the stable flow and safe operation of the gas in the system, so it is very important to warn of the safety status of the gas pressure regulating box.

[0003] Chinese patent publication number: CN115823499B discloses a pressure regulating box with a protective warning function, which includes: a box body, an inspection device, a track structure, a warning light and a compressed gas tank; the invention automatically aligns and fits the pipeline to be inspected after the inspection and installation is completed, and then generates vibration perpendicular to the pipeline axis through the inspection device, so that the pipeline is pushed under the vibration. When the pipeline is not installed tightly, leakage will occur, which can be detected in advance by the leakage sensor, so as to prevent the pipeline from being installed loosely, and after the gas leaks, the warning light will light up to sound an alarm;

[0004] It can be seen that the pressure regulating box with a protective warning function has the following problems: it can only provide a warning when a gas leak occurs, and cannot handle other types of faults in the gas pressure regulating box in a timely manner, resulting in low warning efficiency. Summary of the invention

[0005] To this end, the present invention provides a gas pressure regulating box safety warning system based on the Internet of Things to overcome the problem that the gas pressure regulating box warning system in the prior art cannot handle faults other than gas leakage in a timely manner.

[0006] To achieve the above object, the present invention provides a gas pressure regulating box safety early warning system based on the Internet of Things, comprising:

[0007] A data detection unit, which is connected to the gas pressure regulating box, includes a first gas concentration sensor arranged in the internal pipeline of the gas pressure regulating box to periodically detect the gas concentration in the internal pipeline of the gas pressure regulating box, a first air pressure sensor arranged in the internal pipeline of the gas pressure regulating box to periodically detect the pressure of the gas in the internal pipeline of the gas pressure regulating box, a second gas concentration sensor arranged in the external pipeline of the gas pressure regulating box to detect the gas concentration in the external pipeline of the gas pressure regulating box, and a second air pressure sensor arranged in the external pipeline of the gas pressure regulating box to detect the pressure of the gas in the external pipeline of the gas pressure regulating box;

[0008] a data processing unit connected to the data detection unit, for screening the gas concentration and gas pressure data acquired by the first gas concentration sensor and the first gas pressure sensor based on a preset data screening standard, and filtering the screened gas concentration and gas pressure data;

[0009] A cloud storage unit connected to the data processing unit for receiving and storing the filtered gas concentration and gas pressure data output by the data processing unit;

[0010] A data analysis unit connected to the data processing unit, for calculating a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and for generating an evaluation value curve based on the evaluation value, and for determining whether the operating state of the gas pressure regulating box meets the standard based on the absolute value of the slope of the evaluation value curve; the data analysis unit is also used to make a secondary determination on the operating state of the pressure regulating box based on the user's gas usage rate when it is preliminarily determined that the operating state of the gas pressure regulating box does not meet the standard, and to determine the cause and the corresponding adjustment method when it is determined that the operating state of the gas pressure regulating box does not meet the standard;

[0011] A cloud-based early warning unit is connected to the data analysis unit and is used to issue an alarm based on the reason why the gas pressure regulating box is unqualified determined by the data analysis unit when the data analysis unit determines that the operating status of the gas pressure regulating box does not meet the standards.

[0012] Further, the data analysis unit is used to calculate a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and the comprehensive evaluation value satisfies the formula:

[0013] ;

[0014] Where S is the comprehensive evaluation value, V is the concentration of the gas, which is expressed in volume concentration, P is the pressure of the gas, α is the first characteristic parameter, β is the second characteristic parameter, and α+β=1.

[0015] Furthermore, the data analysis unit is used to draw a curve graph based on the comprehensive evaluation value of the internal pipeline of the gas pressure regulating box, the curve graph uses time as the horizontal coordinate and the evaluation value as the vertical coordinate. For a single point, the data analysis unit determines the safety state of the gas pressure regulating box based on the absolute value of the slope of the curve of the point in the curve graph, wherein:

[0016] The first determination method is that the data analysis unit determines that the absolute value of the slope of the point curve meets the preset absolute value standard, and determines that the safety state of the gas pressure regulating box at the time node is qualified;

[0017] The second determination method is that the data analysis unit preliminarily determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, and the data analysis unit performs a secondary determination on the safety status of the gas pressure regulating box based on the gas usage of users controlled by the gas pressure regulating box;

[0018] The third determination method is that the data analysis unit determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, determines that the safety status of the gas pressure regulating box at the time node is unqualified, and determines the reason for the unqualified.

[0019] Furthermore, when the data analysis unit preliminarily determines that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, the data analysis unit performs a secondary determination on the safety status of the gas pressure regulating box based on the percentage of users who are using gas among the users controlled by the gas pressure regulating box at the time node, wherein:

[0020] The first and second determination methods are that the data analysis unit determines that the percentage of users who are using gas meets the preset percentage, and determines that the safety status of the gas pressure regulating box at this time point is unqualified;

[0021] The second secondary determination method is that the data analysis unit determines that the percentage of users who are using gas does not meet the preset percentage, and determines that the safety status of the gas pressure regulating box at the time node is qualified.

[0022] Furthermore, when the data analysis unit determines that the percentage of users who are using gas meets the preset percentage, a correction method is provided for the preset absolute value standard within the preset time period based on the percentage of users who are using gas, and the adjustment range of the preset absolute value standard is different under each correction method.

[0023] Further, the data analysis unit calculates the comprehensive evaluation value of the external pipeline of the gas pressure regulating box when it is determined that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, and determines the reason why the safety state of the gas pressure regulating box is unqualified based on the comprehensive evaluation value of the external pipeline, wherein:

[0024] The first cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that there is a fault in the gas pressure regulating control of the gas by the gas pressure regulating box;

[0025] The second cause determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that there is a problem in the transmission process of the gas concentration and gas pressure data;

[0026] The third reason determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, and determines that there is a problem in the screening processing of the gas concentration and gas pressure data by the data processing unit;

[0027] The fourth cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, determines that there is a gas leakage phenomenon, and issues an alarm.

[0028] Furthermore, the data analysis unit is provided with several adjustment modes for the gas pressure regulating box valve opening when it is determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and the adjustment range of the gas pressure regulating box valve opening is different under each adjustment mode.

[0029] Furthermore, the data analysis unit is provided with several methods for splitting and processing the data when it is preliminarily determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and the number of data packets split under each data splitting method is different.

[0030] Furthermore, when the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, the data processing unit has several adjustment methods for screening the gas concentration and gas pressure data, and the screening intensity of the data is different under each screening method.

[0031] Furthermore, the data analysis unit is provided with a number of corresponding adjustment methods based on the balance relationship between the splitting method and the screening method when adopting the splitting method for the data, and the data processing method under each adjustment method is different.

[0032] Compared with the prior art, the beneficial effect of the present invention is that the data analysis unit in the present invention calculates a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and the comprehensive evaluation value satisfies the formula:

[0033] ;

[0034] Wherein S is the comprehensive evaluation value, V is the concentration of the gas, which is expressed in volume concentration, P is the pressure of the gas, α is the first characteristic parameter, and β is the second characteristic parameter; the data analysis unit is used to draw a curve graph based on the comprehensive evaluation value of the internal pipeline of the gas pressure regulating box, and the curve graph uses time as the horizontal coordinate and the evaluation value as the vertical coordinate. For a single point, the data analysis unit determines the safety status of the gas pressure regulating box based on the absolute value of the slope of the curve at that point in the curve graph, thereby improving the system's determination accuracy of the safety status of the gas pressure regulating box and effectively improving the early warning efficiency of the system described in the present invention.

[0035] Furthermore, the data analysis unit makes a secondary judgment on the safety status of the gas pressure regulating box based on the percentage of users who are currently using gas among the users controlled by the gas pressure regulating box at that time node when it preliminarily determines that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, wherein: the data analysis unit determines that the safety status of the gas pressure regulating box at the time node is unqualified when it determines that the percentage of users who are currently using gas meets the preset percentage; and determines that the safety status of the gas pressure regulating box at the time node is qualified when it determines that the percentage of users who are currently using gas does not meet the preset percentage, thereby further improving the system's judgment accuracy on the safety status of the gas pressure regulating box and further improving the early warning efficiency of the system described in the present invention.

[0036] Furthermore, when the data analysis unit determines that the percentage of users who are using gas meets the preset percentage, a correction method is provided for the preset absolute value standard within the preset time period based on the percentage of users who are using gas, thereby further improving the system's determination accuracy of the safety status of the gas pressure regulating box and further improving the early warning efficiency of the system described in the present invention.

[0037] Further, the data analysis unit calculates the comprehensive evaluation value of the external pipeline of the gas pressure regulating box when it is determined that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, and determines the reason for the unqualified safety status of the gas pressure regulating box based on the comprehensive evaluation value of the external pipeline. The data analysis unit determines that there is a fault in the pressure regulation control of the gas by the gas pressure regulating box when it is determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard; determines that there is a problem in the transmission process of the gas concentration and the gas pressure data when it is preliminarily determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard; determines that there is a problem in the screening processing of the gas concentration and the gas pressure data by the data processing unit when it is preliminarily determined that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard; determines that there is a gas leakage phenomenon when it is determined that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, and issues an alarm, thereby improving the accuracy of the gas pressure regulating box safety warning system in determining gas leakage, and at the same time accurately determines other fault factors of the gas pressure regulating box, avoiding the false alarm problem due to too low determination accuracy, and further improving the warning efficiency of the system of the present invention.

[0038] Furthermore, when the data analysis unit determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, it is provided with several adjustment methods for the valve opening of the gas pressure regulating box, thereby further improving the determination accuracy of the fault factors of the gas pressure regulating box, avoiding the false alarm problem due to too low determination accuracy, and further improving the early warning efficiency of the system described in the present invention.

[0039] Furthermore, the data analysis unit is provided with several methods for splitting and processing the data when it preliminarily determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, thereby further improving the accuracy of determining the failure factors of the gas pressure regulating box, avoiding the false alarm problem due to too low determination accuracy, and further improving the early warning efficiency of the system described in the present invention.

[0040] Furthermore, the data analysis unit is used to set several adjustment modes for the data processing unit to screen out the gas concentration and gas pressure data when it is preliminarily determined that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, thereby further improving the accuracy of determining the failure factors of the gas pressure regulating box, avoiding the false alarm problem due to too low determination accuracy, and further improving the early warning efficiency of the system described in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a structural block diagram of a gas pressure regulating box safety early warning system based on the Internet of Things according to an embodiment of the present invention;

[0042] Figure 2 This is a flow chart of determining the safety status of a gas pressure regulating box by a data analysis unit according to an embodiment of the present invention;

[0043] Figure 3 This is a flow chart of a secondary determination of the safety status of a gas pressure regulating box by a data analysis unit according to an embodiment of the present invention based on the gas user usage rate;

[0044] Figure 4 The present invention is a flowchart of a data analysis unit determining the reason why the safety status of a gas pressure regulating box is unqualified based on an external pipeline evaluation value according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0047] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0048] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0049] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] See also Figure 1 As shown, it is a structural block diagram of a gas pressure regulating box safety warning system based on the Internet of Things according to an embodiment of the present invention; the gas pressure regulating box safety warning system based on the Internet of Things includes a data detection unit, a data processing unit, a cloud storage unit, a data analysis unit and a cloud warning unit; the data detection unit is connected to the gas pressure regulating box, including a first gas concentration sensor arranged in an internal pipeline of the gas pressure regulating box to periodically detect the gas concentration in the internal pipeline of the gas pressure regulating box, a first air pressure sensor arranged in an internal pipeline of the gas pressure regulating box to periodically detect the pressure of the gas in the internal pipeline of the gas pressure regulating box, a second gas concentration sensor arranged in an external pipeline of the gas pressure regulating box to detect the gas concentration in the external pipeline of the gas pressure regulating box, and a second air pressure sensor arranged in an external pipeline of the gas pressure regulating box to detect the pressure of the gas in the external pipeline of the gas pressure regulating box;

[0051] The data processing unit is connected to the data detection unit, and is used to screen the gas concentration and gas pressure data obtained by the first gas concentration sensor and the first gas pressure sensor based on a preset data screening standard, and filter the screened gas concentration and gas pressure data; the cloud storage unit is connected to the data processing unit, and is used to receive and store the filtered gas concentration and gas pressure data output by the data processing unit;

[0052] The data analysis unit is connected to the data processing unit, and is used to calculate a comprehensive evaluation value based on the gas concentration and gas pressure data in the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and to generate an evaluation value curve based on the evaluation value, and to determine whether the operating status of the gas pressure regulating box meets the standard based on the absolute value of the slope of the evaluation value curve; the data analysis unit is also used to make a secondary judgment on the operating status of the pressure regulating box based on the user's gas usage rate when it is preliminarily determined that the operating status of the gas pressure regulating box does not meet the standard, and to determine the cause and the corresponding adjustment method when it is determined that the operating status of the gas pressure regulating box does not meet the standard; the cloud-based early warning unit is connected to the data analysis unit, and is used to issue an alarm based on the cause of the failure of the gas pressure regulating box determined by the data analysis unit when the data analysis unit determines that the operating status of the gas pressure regulating box does not meet the standard.

[0053] Specifically, the second gas concentration sensor and the second gas pressure sensor are used to detect the concentration and pressure of the external pipeline gas respectively when the concentration and pressure data of the internal pipeline gas are unqualified;

[0054] Specifically, the data analysis unit calculates a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and the comprehensive evaluation value satisfies the formula:

[0055] ;

[0056] Where S is the comprehensive evaluation value, V is the concentration of the gas, which is expressed in volume concentration, P is the pressure of the gas, α is the first characteristic parameter, β is the first characteristic parameter, α+β=1, α=0.637, β=0.363, It is used to correct the gas concentration value detected under abnormal pressure.

[0057] See also Figure 2As shown, it is a flow chart for determining the safety state of the gas pressure regulating box by the data analysis unit of an embodiment of the present invention; the data analysis unit draws a curve graph based on the comprehensive evaluation value of the internal pipeline of the gas pressure regulating box, the curve graph uses time as the horizontal coordinate and the evaluation value as the vertical coordinate, and the smooth algorithm in MATLAB is used to process the curve. For a single point, the data analysis unit determines the safety state of the gas pressure regulating box based on the absolute value of the slope of the curve at the point in the curve graph, wherein: the first determination method is that the data analysis unit determines that the absolute value of the slope of the curve at the point meets the preset absolute value standard, and determines that the safety state of the gas pressure regulating box at the time node is qualified; the first determination method satisfies that the absolute value of the slope of the curve at the point is less than or equal to the first preset absolute value, and the first preset absolute value is set to K1=0.05; when the absolute value of the slope of the curve is less than or equal to the first preset absolute value, the concentration of the gas and the pressure of the gas inside the gas pressure regulating box do not fluctuate greatly, and are in a safe state;

[0058] The second determination method is that the data analysis unit preliminarily determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, and the data analysis unit performs a secondary determination on the safety state of the gas pressure regulating box based on the gas usage of users controlled by the gas pressure regulating box; the second determination method satisfies that the absolute value of the slope of the point curve is greater than the first preset absolute value and less than or equal to the second preset absolute value, and the second preset absolute value is set to K2=0.3; in the case where there are many users using gas, there may be a certain amplitude of fluctuation in the gas pressure regulating box, so it is necessary to perform a secondary determination based on the gas usage of the users;

[0059] The third judgment method is that the data analysis unit determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, determines that the safety status of the gas pressure regulating box at the time node is unqualified, and determines the reason for the unqualified; the third judgment method satisfies that the absolute value of the slope of the point curve is greater than the second preset absolute value.

[0060] See also Figure 3 As shown, it is a flowchart of the secondary determination of the safety state of the gas pressure regulating box by the data analysis unit according to the embodiment of the present invention based on the user usage rate of gas; the data analysis unit performs a secondary determination of the safety state of the gas pressure regulating box based on the percentage of users who are using gas among the users controlled by the gas pressure regulating box at the time node when the absolute value of the slope of the single point curve is initially determined not to meet the preset absolute value standard, wherein:

[0061] The first and second determination methods are that the data analysis unit determines that the percentage of users who are using gas meets the preset percentage, and determines that the safety status of the gas pressure regulating box at this time node is unqualified; the first and second determination methods meet the requirement that the percentage of users who are using gas is less than or equal to 30%; when there are relatively few users who are using gas, the fluctuation caused by the use of gas to the internal pipeline is very small, which is not enough to meet the second determination method;

[0062] The second secondary judgment method is that the data analysis unit determines that the percentage of users who are using gas does not meet the preset percentage, and determines that the safety status of the gas pressure regulating box at this time node is qualified; the first secondary judgment method meets the requirement that the percentage of users who are using gas is greater than 30%.

[0063] Specifically, the data analysis unit modifies the preset absolute value standard within the preset time period based on the percentage of users who are using gas when it is determined that the percentage of users who are using gas meets the preset percentage, wherein:

[0064] The correction formula for the first preset absolute value is: ;

[0065] The correction formula for the second preset absolute value is: ;

[0066] A is the total number of users controlled by the gas pressure regulating box, A1 is the number of users currently using gas among the users controlled by the gas pressure regulating box, is the first correction parameter, is the second correction parameter, set When the data analysis unit determines that the first and second determination methods are met, the data analysis unit uses the revised preset absolute value standard to determine the safety status of the gas pressure regulating box within the next hour. After one hour, the data analysis unit uses the initial preset absolute value standard to determine again.

[0067] See also Figure 4 As shown, it is a flow chart of determining the reason why the safety state of the gas pressure regulating box is unqualified based on the external pipeline evaluation value by the data analysis unit of an embodiment of the present invention; the data analysis unit calculates the comprehensive evaluation value of the external pipeline of the gas pressure regulating box when it is determined that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, and determines the reason why the safety state of the gas pressure regulating box is unqualified based on the comprehensive evaluation value of the external pipeline, wherein:

[0068] The first cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that the gas pressure regulating box has a fault in the gas pressure regulating control; the first cause determination method satisfies that the comprehensive evaluation value of the external pipeline is less than or equal to the first preset evaluation value, and the first preset evaluation value is set to 1500;

[0069] The second cause determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that there are problems in the transmission process of the gas concentration and gas pressure data; the second cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the first preset evaluation value and less than or equal to the second preset evaluation value, and the second preset evaluation value is set to 1700;

[0070] The third cause determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, and determines that there is a problem in the screening processing of the gas concentration and gas pressure data by the data processing unit; the third cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the second preset evaluation value and less than or equal to the third preset evaluation value, and the third preset evaluation value is set to 1900;

[0071] The fourth cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, determines that there is a gas leakage phenomenon, and issues an alarm; the fourth cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the third preset evaluation value.

[0072] Specifically, the data analysis unit is provided with an adjustment method for the valve opening of the gas pressure regulating box based on the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value when it is determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, wherein:

[0073] The first valve opening adjustment method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value meets the preset evaluation value difference standard, and the valve opening is adjusted by using the first adjustment coefficient; the first valve opening adjustment method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value is less than or equal to the first preset evaluation value difference, and the first preset evaluation value difference is set to 100; the initial valve opening is set to 50%, the first adjustment coefficient is 1.1, and after adjustment by the first adjustment coefficient, the valve opening becomes 1.1 times the initial opening, and the adjusted valve opening is 55%;

[0074] The second valve opening adjustment method is that the data analysis unit preliminarily determines that the difference between the comprehensive evaluation value of the external pipeline and the value lower than the preset evaluation value does not meet the preset evaluation value difference standard, and the valve opening is adjusted by the second adjustment coefficient; the second valve opening adjustment method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value is greater than the first preset evaluation value difference and less than or equal to the second preset evaluation value difference, and the second preset evaluation value difference is set to 300; the second adjustment coefficient is set to 1.2, and after adjustment by the second adjustment coefficient, the valve opening becomes 1.2 times the initial opening, and the adjusted valve opening is 60%;

[0075] The third valve opening adjustment method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the value lower than the preset evaluation value does not meet the preset evaluation value difference standard, and the valve opening is adjusted by the third adjustment coefficient; the third valve opening adjustment method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value is greater than the difference between the second preset evaluation value; the third adjustment coefficient is set to 1.3, and after adjustment by the third adjustment coefficient, the valve opening becomes 1.3 times the initial opening, and the adjusted valve opening is 65%.

[0076] Specifically, the data analysis unit determines that there are problems in the transmission process of the gas concentration and gas pressure data when it preliminarily determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, determines that the network fluctuation has a significant interference on the data, and determines the way to split the data based on the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value, so as to reduce the influence of network fluctuation on the data, wherein: the first splitting method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is qualified, and divides the gas concentration and gas pressure data into 3 data packets for transmission respectively; the first splitting method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is less than or equal to the preset first-level difference, and the preset first-level difference is set to 50;

[0077] The second splitting method is that the data analysis unit preliminarily determines that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is unqualified, and the gas concentration and gas pressure data are divided into 5 data packets for transmission respectively; the second splitting method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is greater than the preset first-level difference and less than or equal to the preset second-level difference, and the preset second-level difference is set to 100;

[0078] The third splitting method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is unqualified, and the gas concentration and gas pressure data are divided into 7 data packets for transmission separately; the third splitting method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the second preset evaluation value is greater than the preset secondary difference.

[0079] Specifically, under the initial conditions, the data processing unit will screen the raw gas concentration and gas pressure data obtained by the data detection unit, remove duplicate data, and periodically calculate the average value of the data in the cycle, and set the difference between the highest and lowest values ​​in the cycle as the overall floating range of the cycle. The data processing unit removes data that exceeds the floating range of ±20% of the average value, and sets the cycle to be calculated every 5 seconds;

[0080] The data analysis unit determines that there are too many redundant data in the gas concentration and gas pressure data when it preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, which has caused excessive interference to the determination result output by the data analysis unit. The data analysis unit is provided with an adjustment method for the screening method of the data processing unit for the gas concentration and gas pressure data based on the difference between the comprehensive evaluation value of the external pipeline and the third preset evaluation value, wherein:

[0081] The first screening method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the third preset evaluation value meets the preset screening standard, and adjusts the range of data rejection by the data processing unit to reject data exceeding the floating range of ±15% of the average value; the first screening method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the third preset evaluation value is less than or equal to the preset external difference, and the preset external difference is set to 80;

[0082] The second screening method is that the data analysis unit determines that the difference between the comprehensive evaluation value of the external pipeline and the third preset evaluation value does not meet the preset screening standard, and adjusts the range of data elimination by the data processing unit to eliminate data that exceeds the floating range of ±10% of the average value; the second screening method satisfies that the difference between the comprehensive evaluation value of the external pipeline and the third preset evaluation value is greater than the preset external difference.

[0083] Specifically, when the method of splitting the gas concentration and gas pressure data is adopted, the data screening method will be adjusted accordingly, and the adjustment method is as follows:

[0084] If the first splitting method is adopted, the range of data to be eliminated by the data processing unit is adjusted to eliminate data exceeding the floating range of ±23% of the average value;

[0085] If the second splitting method is adopted, the range of data to be eliminated by the data processing unit is adjusted to eliminate data exceeding the floating range of ±26% of the average value;

[0086] If the third splitting method is adopted, the range of data to be eliminated by the data processing unit is adjusted to eliminate data exceeding the floating range of ±29% of the average value;

[0087] When the data is split and processed, the load pressure of single data transmission is also reduced. The system can transmit more original data, and the data screening standards can be appropriately relaxed to increase the initial data volume, making the calculation results more accurate.

[0088] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas pressure regulating box safety early warning system based on the Internet of Things, characterized in that: include: A data detection unit, which is connected to the gas pressure regulating box, includes a first gas concentration sensor arranged in the internal pipeline of the gas pressure regulating box to periodically detect the gas concentration in the internal pipeline of the gas pressure regulating box, a first air pressure sensor arranged in the internal pipeline of the gas pressure regulating box to periodically detect the pressure of the gas in the internal pipeline of the gas pressure regulating box, a second gas concentration sensor arranged in the external pipeline of the gas pressure regulating box to detect the gas concentration in the external pipeline of the gas pressure regulating box, and a second air pressure sensor arranged in the external pipeline of the gas pressure regulating box to detect the pressure of the gas in the external pipeline of the gas pressure regulating box; a data processing unit connected to the data detection unit, for screening the gas concentration and gas pressure data acquired by the first gas concentration sensor and the first gas pressure sensor based on a preset data screening standard, and filtering the screened gas concentration and gas pressure data; A cloud storage unit connected to the data processing unit for receiving and storing the filtered gas concentration and gas pressure data output by the data processing unit; A data analysis unit connected to the data processing unit, for calculating a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit, and for generating an evaluation value curve based on the comprehensive evaluation value, and for judging whether the operating state of the gas pressure regulating box meets the standard based on the absolute value of the slope of the evaluation value curve; the data analysis unit is also used to make a secondary judgment on the operating state of the pressure regulating box based on the gas usage rate of the user when it is preliminarily judged that the operating state of the gas pressure regulating box does not meet the standard, and to determine the cause and the corresponding adjustment method when it is judged that the operating state of the gas pressure regulating box does not meet the standard; A cloud-based early warning unit is connected to the data analysis unit and is used to issue an alarm based on the reason why the gas pressure regulating box is unqualified determined by the data analysis unit when the data analysis unit determines that the operating status of the gas pressure regulating box does not meet the standards.

2. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 1 is characterized in that: The data analysis unit is used to calculate a comprehensive evaluation value based on the gas concentration and gas pressure data of the internal pipeline of the gas pressure regulating box after screening and filtering by the data processing unit. The comprehensive evaluation value satisfies the formula: ； Where S is the comprehensive evaluation value, V is the concentration of the gas, which is expressed in volume concentration, P is the pressure of the gas, α is the first characteristic parameter, β is the second characteristic parameter, α+β=1, and hPa is the pressure unit hectopascal.

3. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 2 is characterized in that: The data analysis unit is used to draw a curve graph based on the comprehensive evaluation value of the internal pipeline of the gas pressure regulating box. The curve graph uses time as the horizontal axis and the comprehensive evaluation value as the vertical axis. For a single point, the data analysis unit determines the safety state of the gas pressure regulating box based on the absolute value of the slope of the curve of the point in the curve graph, wherein: The first determination method is that the data analysis unit determines that the absolute value of the slope of the point curve meets the preset absolute value standard, and determines that the safety state of the gas pressure regulating box at the time node is qualified; the first determination method satisfies that the absolute value of the slope of the point curve is less than or equal to the first preset absolute value; The second determination method is that the data analysis unit preliminarily determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, and the data analysis unit performs a secondary determination on the safety status of the gas pressure regulating box based on the gas usage of users controlled by the gas pressure regulating box; the second determination method satisfies that the absolute value of the slope of the point curve is greater than the first preset absolute value and less than or equal to the second preset absolute value; The third judgment method is that the data analysis unit determines that the absolute value of the slope of the point curve does not meet the preset absolute value standard, determines that the safety status of the gas pressure regulating box at the time node is unqualified, and determines the reason for the unqualified; the third judgment method satisfies that the absolute value of the slope of the point curve is greater than the second preset absolute value.

4. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 3 is characterized in that: The data analysis unit is used to perform a secondary determination on the safety status of the gas pressure regulating box based on the percentage of users who are using gas among the users controlled by the gas pressure regulating box at the time node when the absolute value of the slope of the single point curve is greater than the first preset absolute value and less than or equal to the second preset absolute value, wherein: The first and second determination methods are that the data analysis unit determines that the percentage of users who are using gas meets the preset percentage, and determines that the safety status of the gas pressure regulating box at this time point is unqualified; The second secondary determination method is that the data analysis unit determines that the percentage of users who are using gas does not meet the preset percentage, and determines that the safety status of the gas pressure regulating box at the time node is qualified.

5. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 4 is characterized in that: The data analysis unit is used to provide a correction method for a preset absolute value standard within a preset time period based on the percentage of users who are using gas when it is determined that the percentage of users who are using gas meets a preset percentage, and the adjustment range of the preset absolute value standard under each correction method is different.

6. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 3 is characterized in that: The data analysis unit is used to calculate the comprehensive evaluation value of the external pipeline of the gas pressure regulating box when it is determined that the absolute value of the slope of the single point curve does not meet the preset absolute value standard, and determine the reason why the safety state of the gas pressure regulating box is unqualified based on the comprehensive evaluation value of the external pipeline, wherein: The first cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that there is a fault in the gas pressure regulating control of the gas by the gas pressure regulating box; the first cause determination method satisfies that the comprehensive evaluation value of the external pipeline is less than or equal to the first preset evaluation value; The second cause determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and determines that there is a problem in the transmission process of the gas concentration and gas pressure data; the second cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the first preset evaluation value and less than or equal to the second preset evaluation value; The third cause determination method is that the data analysis unit preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, and determines that there is a problem in the screening processing of the gas concentration and gas pressure data by the data processing unit; the third cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the second preset evaluation value and less than or equal to the third preset evaluation value; The fourth cause determination method is that the data analysis unit determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, determines that there is a gas leakage phenomenon, and issues an alarm; the fourth cause determination method satisfies that the comprehensive evaluation value of the external pipeline is greater than the third preset evaluation value.

7. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 6 is characterized in that: When the data analysis unit determines that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, an adjustment method for the gas pressure regulating box valve opening is provided based on the difference between the comprehensive evaluation value of the external pipeline and the first preset evaluation value, and the adjustment range of the gas pressure regulating box valve opening is different under each adjustment method.

8. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 6 is characterized in that: The data analysis unit is used to provide several methods for splitting and processing data when it is preliminarily determined that the comprehensive evaluation value of the external pipeline meets the preset evaluation value standard, and the number of data packets split under each data splitting method is different.

9. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 6 is characterized in that: The data analysis unit is used to set several adjustment modes for the data processing unit to screen out the gas concentration and gas pressure data when it preliminarily determines that the comprehensive evaluation value of the external pipeline does not meet the preset evaluation value standard, and the screening strength of the data under each screening mode is different.

10. The gas pressure regulating box safety early warning system based on the Internet of Things according to claim 8 is characterized in that: The data analysis unit is used to set a number of corresponding adjustment methods based on the balance relationship between the splitting method and the screening method when a splitting method for data is adopted, and the data processing method under each adjustment method is different.

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