Intelligent safety valve control system and control method

Abstract

The application provides a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related to safety valve technical field.The application relates to a kind of intelligent safety valve control system and control method, it is related

Description

Technical Field

[0001] This invention relates to the field of safety valve technology, and more specifically, to an intelligent safety valve control system and control method. Background Technology

[0002] In existing technologies, common gas leak alarms on the market detect low concentrations of combustible gas in the surrounding environment using gas sensors. A sampling circuit then transmits the detection signal, either analog or digital, to a controller or control circuit. When the combustible gas concentration exceeds a set value in the controller or control circuit, the controller sends an alarm signal or performs actions such as closing the gas valve via an actuator or execution circuit. However, this method typically only detects leaks of a significant amount, resulting in a detection lag. Furthermore, it cannot pinpoint the exact location of the leak. Additionally, gas detectors are generally installed above the kitchen, requiring power from the kitchen itself, leading to insufficient energy efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent safety valve control system and control method, which can address the shortcomings of existing technologies by providing solutions, and features timely detection, leak point location, energy saving, and applicability.

[0004] The embodiments of the present invention are implemented as follows:

[0005] In a first aspect, the present invention proposes an intelligent safety valve control system, comprising an interconnected gas pipeline, an electrically controlled valve, a controller, and a power supply module; the controller has a built-in mathematical model for linear data fitting.

[0006] The aforementioned gas transmission pipeline includes an inlet end, a detection section, and an outlet end. The detection section is equipped with multiple flow detection sensors that can measure gas flow rate and direction, which are equidistantly arranged inside. The flow detection sensors and the aforementioned electric control valve are both electrically connected to the aforementioned controller. The inlet end is provided with a control structure, which includes a control tube. A wire lead channel is spirally arranged on the inner side wall of the control tube. A lead wire for electrically connecting the flow detection sensors and the controller is passed through the wire lead channel. A sealant is provided between the lead wire and the wire lead channel.

[0007] The aforementioned energy supply module includes a micro-energy storage system, which is electrically connected to the aforementioned electric control valve, controller, and flow detection sensor. The micro-energy storage system includes an energy harvester, an energy storage device, and a control chip that are electrically connected to each other. The control chip is used to regulate and control the output energy.

[0008] In some embodiments of the present invention, a sealing element is also included, which includes an integrally formed sealing cap and a sealing rod. A sealing ring is provided on the lower side of the sealing cap, and a channel groove is spirally formed on the outer wall of the sealing rod. The channel groove is in abutting and engaging with the lead wire channel.

[0009] In some embodiments of the present invention, a reinforcing layer is further provided in the channel groove, wherein the reinforcing layer is a soft rubber layer.

[0010] In some embodiments of the present invention, the collector is a solar collector panel and the energy storage device is a capacitor energy storage device.

[0011] In some embodiments of the present invention, the power supply module further includes an external power supply, and a PMIC module is provided between the external power supply and the energy storage device.

[0012] In some embodiments of the present invention, a gas leak detector and an alarm are also included, both of which are electrically connected to the controller.

[0013] In some embodiments of the present invention, the flow detection sensor described above is an electromagnetic flow sensor.

[0014] Secondly, this invention also proposes an intelligent safety valve control method, applied to the aforementioned intelligent safety valve control system, including a testing method and an operating method, specifically comprising the following steps:

[0015] S1. After the entire intelligent safety valve control system is correctly installed in the home environment and the installation is checked and found to be correct, multiple flow detection sensors are marked as Q1, Q2 to Qn in the order from the air inlet to the air outlet. Q1 is set at the air inlet and Qn is at the air outlet. The common parts and the exclusive parts are confirmed, and then the test method stage is started.

[0016] S2, turn on only the kitchen gas appliance and measure the measurement data C1, C2 to Cn from multiple flow detection sensors; turn on only the gas heating appliance and obtain the measurement data R1, R2 to Rn from multiple flow detection sensors;

[0017] S3, calculate the differences between adjacent measured data C2-C1, C3-C2 to Cn-Cn-1; similarly, R2-R1, R3-R2 to Rn-Rn-1, and for the common part, sum the kitchen gas equipment and gas heating equipment, and return the difference data to the controller for storage and fitting to form the normal usage data of this household scenario;

[0018] S4, after being put into normal use, will measure the difference data every T period of time and transmit the difference data to the controller for comparison and analysis with the normal use data;

[0019] If all difference data are present, and the data is archived in the controller or can satisfy linear fitting, or if all difference data are 0, then it is normal;

[0020] If, starting from a certain difference data point, subsequent difference data points are 0 or negative, or if the difference data points before and after that difference data point are all normal, but that difference data point increases significantly and does not conform to the linear fitting data, then there is an air leak between the two flow detection sensors corresponding to that difference data point. In this case, the controller will promptly shut down the electrically controlled valve and investigate the issue in a timely manner.

[0021] If the first difference data is negative, there will be no subsequent difference data or the data will be negative; or if the first difference data is large and does not meet the fitting formula, while the subsequent difference data are normal, then there is an air leak at the air intake connection.

[0022] If all the difference data are present but the fitting formula is not satisfied, it indicates air leakage at the outlet. In this case, the controller will shut down the electric control valve in time and investigate the problem promptly.

[0023] In some embodiments of the present invention, the measurement data includes flow rate and direction value, which are set as square when the gas flows toward the gas-using device and negative when it flows away.

[0024] In some embodiments of the present invention, the difference data is obtained by adjusting the gas consumption of the gas-using equipment and performing multiple tests in the testing method, and then forming a linear fitting formula for the difference data through a mathematical model.

[0025] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0026] Effect 1: Accurate and timely leak detection. This invention utilizes the coordinated use of intelligent safety valve control systems, and ensures detection accuracy through the sealed design of the lead-in channel of the control structure. Furthermore, it monitors the gas flow status in the gas pipeline by detecting the difference in flow rate at equal intervals within the pipeline. Data transmission and analysis are performed every T interval. By using the difference data and direction, gas leaks in the pipeline can be detected in a timely manner, and then the electrically controlled valve can be shut off.

[0027] Secondly, leak point location: By analyzing and calculating the differential data and direction of the gas pipeline, this invention can quickly identify gas leaks and locate the leak point, enabling timely investigation and greatly expanding the scope of inspection and accelerating work efficiency.

[0028] Thirdly, this invention saves energy and improves applicability. By setting up a micro-energy storage system, the energy required by the sensors and control chips is not large. The solar panels of the micro-energy storage system, in conjunction with the energy storage device, can provide basic power for the entire system, greatly reducing energy consumption from relying on household power. In addition, to avoid occasional periods of insufficient sunlight, a backup option of household power is added, improving its applicability. Furthermore, by using the energy storage device, once the household power supply is fully charged, power outage energy saving is also achieved. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall connection of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a gas transmission pipeline according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the lead-in channel according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the internal structure of the control tube in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the sealing element according to an embodiment of the present invention.

[0035] Icons: 1-Gas pipeline, 2-Electrically controlled valve, 3-Controller, 4-Power supply module, 5-Energy harvester, 6-Energy storage device, 7-Control chip, 8-Inlet end, 9-Detection unit, 10-Outlet end, 11-Flow detection sensor, 12-Control tube, 13-Wire lead channel, 14-Lead wire, 15-Sealant, 16-Seal, 17-Sealing cap, 18-Sealing ring, 19-Sealing rod, 20-Reinforcing layer, 21-External power supply, 22-Gas leak detector, 23-Channel groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] Please refer to Figures 1-5 , specifically Figures 1-5 The figure shown is one embodiment of the present invention.

[0040] It should be noted beforehand that this invention is intended for use in home settings, such as gas-using appliances. In general, the gas company delivers the main gas pipeline to the kitchen or balcony, installs the gas meter, and then the household connects the gas pipeline from there to the kitchen. There are several branch pipes that go to the gas stove in the kitchen, the gas water heater (electric water heaters are ignored), and some may also have gas-using appliances such as underfloor heating. This invention uses two lines as an example.

[0041] Firstly, this invention proposes an intelligent safety valve control system, comprising a gas pipeline 1, an electrically controlled valve 2, a controller 3, and a power supply module 4, all interconnected. These interconnected components enable the entire system to acquire, transmit, process, and judge detection data, and issue operation commands to shut off the gas supply. In this embodiment, the controller 3 is integrated into a control panel, which also facilitates human-machine interaction.

[0042] The aforementioned controller 3 has a built-in mathematical model for linear fitting of data. This mathematical model is suitable for linear fitting of the difference data after the detection data has been differentially processed. It derives the error reduction using the least squares method, and then combines iterative training to ultimately achieve a parametric mathematical formula for general linear fitting. Any difference data that satisfies this mathematical formula can be considered as collected data during normal use, even if the differentially processed data is not in the original initial archive. Many mathematical models can achieve this function; no specific limitation is made here, as long as it can be implemented. This invention merely proposes one method for implementation.

[0043] The aforementioned gas pipeline 1 includes an inlet end 8, a detection section 9, and an outlet end 10. The detection section 9 has multiple flow detection sensors 11 equidistantly arranged inside, which can measure gas flow rate and direction. The flow detection sensors 11 and the aforementioned electric control valve 2 are both electrically connected to the aforementioned controller 3. The inlet end 8 is provided with a control structure, which includes a control pipe 12. The inner wall of the control pipe 12 is spirally provided with a wire lead channel 13. A lead wire 14 for electrically connecting the flow detection sensors 11 and the controller 3 is passed through the wire lead channel 13. A sealant 15 is provided between the lead wire 14 and the wire lead channel 13.

[0044] The flow detection sensors 11 are set at equal intervals, with the distance being 5-20cm. In this embodiment, the distance is set at 10cm.

[0045] In this invention, the flow detection sensor 11 is an electromagnetic flow sensor. The electromagnetic flow sensor can detect not only the flow value but also the direction of the flow, thus enabling the simultaneous acquisition of two data points for the controller 3 to perform data acquisition.

[0046] During data transmission, both wireless and wired methods can be used. Considering the stability of signal transmission and the economy of energy consumption, this invention adopts a wired method. The wired method involves the issue of the transmission line's lead-out. Therefore, this invention adds an output port by embedding a flow detection sensor 11 inside the gas pipeline and designing a control structure. Furthermore, a spiral-shaped lead-in channel 13 is set inside the control pipe 12, from which the lead wire 14 leads out. The spiral design increases the lead wire 14's path, and a sealant 15 is filled in the middle for sealing, ensuring that there is no leakage from the lead wire 14, thus preventing inaccurate detection data. The bottom of the control pipe 12 is sealed, while the bottom of the side wall of the control pipe 12 has an inlet for the lead-in channel 13, and the upper end of the side wall of the control pipe 12 has an outlet for the lead-in channel 13 (not specifically shown in the attached drawings).

[0047] In a further embodiment of the present invention, the control structure further includes a sealing element 16, which includes an integrally formed sealing cap 17 and a sealing rod 19. A sealing ring 18 is provided on the lower side of the sealing cap 17, and a channel groove is spirally formed on the outer wall of the sealing rod 19. The channel groove abuts and engages with the lead wire channel 13. By setting the sealing rod 19 to abut and compress with the lead wire channel 13, the present invention makes the sealant 15 and the lead wire 14 more tightly connected, further improving its sealing performance. The sealing ring 18 of the sealing cap 17 seals the entire lead wire channel 13 again, ensuring the effectiveness and accuracy of the detection values.

[0048] It should be noted that a reinforcing layer 20, which is a soft rubber layer, is also provided in the aforementioned channel groove. The soft rubber layer provides better wrapping and compression of the lead-in channel 13 through the channel groove, further improving the sealing performance of the lead-in wire 14.

[0049] The aforementioned energy supply module 4 includes a micro-energy storage system, which is electrically connected to the aforementioned electronically controlled valve 2, controller 3, and flow detection sensor 11. The micro-energy storage system includes an energy harvester 5, an energy storage device 6, and a control chip 7, all electrically connected to each other. The control chip 7 is used to regulate and control the output energy. The electronically controlled valve 2 is located at the very front of the gas pipeline 1 (near the gas meter). The control chip 7 of the micro-energy storage system is an MF9006, specifically designed for effectively acquiring and managing microwatt (µW) to milliwatt (mW) power generated by solar energy. It is ideal for ultra-low power applications and also integrates a power management system to prevent energy overflow.

[0050] Specifically, the aforementioned collector is a solar panel, and the aforementioned energy storage device 6 is a capacitor energy storage device. In this embodiment, both the solar panel and the capacitor energy storage device are small devices that can be easily installed in home settings.

[0051] In this invention, the power supply module 4 further includes an external power supply 21, and a PMIC module is provided between the external power supply 21 and the energy storage device 6. The external power supply 21 is designed to replenish electrical energy in case the energy storage device 6 is depleted due to occasional periods of insufficient sunlight, thus improving the applicability of this invention. Furthermore, the PMIC module prevents overcharging, protecting the energy storage device 6, and also allows for the elimination of electrical input once fully charged, thereby saving energy and reducing operating costs.

[0052] It is worth noting that this embodiment of the invention also includes a gas leak detector 22 and an alarm, both of which are electrically connected to the controller 3. The gas leak detector is used to prevent the failure of the flow detection sensor 11 in case of a leak, ensuring that any gas leak can be detected and a signal is sent to the controller 3 to close the electronically controlled valve 2. The alarm is integrated into the control panel along with the controller 3, providing both audible and visual alarms.

[0053] Secondly, this invention also proposes an intelligent safety valve control method, utilizing the aforementioned intelligent safety valve control system, including a testing method and an operating method, specifically comprising the following steps:

[0054] S1. After the entire intelligent safety valve control system is correctly installed in the home environment and the installation is checked and found to be correct, the multiple flow detection sensors 11 are marked as Q1, Q2 to Qn, where n is an integer greater than or equal to 2, in the order from the air inlet 8 to the air outlet 10. The shared parts and the exclusive parts are then identified, and the test method stage is then started.

[0055] S2, turn on only the kitchen gas appliance and measure the measurement data C1, C2 to Cn from multiple flow detection sensors 11, where n is an integer greater than or equal to 2; turn on only the gas heating appliance and obtain the measurement data R1, R2 to Rn from multiple flow detection sensors 11, where n is an integer greater than or equal to 2. The measurement data includes flow rate and direction values, set as square when the gas flows towards the gas appliance, and negative when it flows away.

[0056] S3, calculate the differences between adjacent measured data C2-C1, C3-C2 to Cn-Cn-1; similarly, R2-R1, R3-R2 to Rn-Rn-1, and return this difference data to controller 3 for storage and fitting to form normal usage data for this household scenario; specifically, in the testing method, the difference data is obtained by adjusting the gas consumption of the gas-using equipment, performing multiple tests, and obtaining multiple measurement data. Through a mathematical model, a linear fitting formula for the difference data is formed. In this process, for the common part, the kitchen gas-using equipment and the gas heating equipment are summed, and the two are added together. The unique part is still calculated separately. In this embodiment, the data is mainly collected through five sets of difference data, so there are mainly three types of tests:

[0057] The first method involves testing the kitchen gas appliance individually, typically the gas stove, at its highest heat output. The difference between adjacent values ​​is measured. The stove is then gradually turned down, and three more difference values ​​are measured during this process. Finally, the stove is adjusted to its lowest heat output, and the last difference value is measured. These five sets of data are fed into controller 3 for fitting, forming the first part of the stored normal usage data (except for the first and last sets, which are actual data; the middle parts are in the form of the first fitting formula).

[0058] The second method involves testing the gas heating equipment separately, typically a gas water heater. In the same way, five sets of data are measured and sent to controller 3 for fitting, forming the second part of the normal usage data stored (except for the first and last sets which are actual data, the middle part exists in the form of the second fitting formula).

[0059] The third method involves simultaneously turning on both the gas heating equipment and the kitchen gas equipment, and only measuring the data for the shared portion. This is because the portion used independently is the same as that used in the first and second methods, and the fitting formulas for the first and second methods can be used directly. However, the shared portion needs to be refitted to generate normal usage data for the third fitting formula.

[0060] It should be emphasized here that in the embodiments of the present invention, the household gas transmission line is "Y" shaped, with a part of the main line being shared and the branch lines being used exclusively. This is why three fitting formulas are needed. If the gas is used exclusively directly from the air inlet and there is no shared part, then only the first two fitting formulas are needed.

[0061] S4, after being put into normal use, will measure the difference data every T period of time and transmit the difference data to controller 3 for comparison and analysis with the normal use data; the time T is generally 10-60 seconds, and we use 20 seconds here.

[0062] If all difference data are present, and the data is archived in controller 3 or can satisfy linear fitting, or if all difference data are 0, then it is normal;

[0063] If, starting from a certain difference value, subsequent difference values ​​are 0 or negative, this indicates a small leak and that no gas has been used.

[0064] Alternatively, the difference data before and after this difference data are both normal, but this difference data increases significantly, which does not conform to the linear fitting data; in this case, the leak is also small, and gas is being used.

[0065] Alternatively, if none of the difference data conforms to the three fitting formulas, and there is one place where the difference data increases significantly; in this case, there is a large leak, and the difference data does not meet the fitting formula regardless of whether gas is used.

[0066] In the above three cases, there is a leak between the two flow detection sensors 11 corresponding to the difference data. In this case, the controller 3 will shut down the electric control valve 2 in time and investigate. If there is a leak in the middle of the pipeline, the detection data after the leak point may be 0 (the gas supply is mainly sent from the main pipeline to the gas transmission pipeline 1 until the leak point), or there may be a little backflow (that is, the gas in the original gas transmission pipeline 1 after the leak point flows back to the leak point. This situation is generally due to a larger leak point).

[0067] If the first difference data is negative, and there are no subsequent difference data or the values ​​are negative, this indicates that gas is not being used. Alternatively, if the first difference data does not meet the fitting formula and the value is large, while the subsequent difference data are normal, then there is a leak at the air inlet end 8 connection.

[0068] If all the difference data are present but do not meet the three fitting formulas, then there is a leak at the outlet 10. In this case, the controller 3 will shut off the electric control valve 2 in time and investigate the problem promptly.

[0069] It should also be noted that the gas flow rate in the pipe is faster closer to the outlet and slower further away from the outlet.

[0070] In summary, this invention utilizes the coordinated operation of intelligent safety valve control systems, along with a sealed design of the lead-in channel 13 in the control structure to ensure detection accuracy. By monitoring the flow rate difference between equally spaced detectors within the gas pipeline 1, the gas flow status of the pipeline 1 is monitored. Data transmission and analysis are performed every time interval T. Using the difference data and direction, gas leaks in the gas pipeline 1 are detected promptly, and the electrically controlled valve 2 is shut off, enabling early detection and prevention of potential hazards, thus providing timely hazard mitigation. Furthermore, by analyzing and calculating the difference data and direction in the gas pipeline 1, this invention can quickly identify gas leaks and pinpoint their location, facilitating timely investigation and resolution by personnel, greatly expanding the inspection scope and accelerating maintenance efficiency. This invention utilizes a micro-energy storage system. Since the sensors and control chip 7 require relatively little power, the solar panels of the micro-energy storage system, in conjunction with the energy storage device 6, can provide basic power for the entire system, significantly reducing reliance on household power. Furthermore, to address occasional periods of insufficient sunlight, a backup option of household power is added, enhancing its applicability. Moreover, by using the energy storage device 6, power outages can be minimized once the household power supply is fully charged, resulting in high economic efficiency.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An intelligent safety valve control system, characterized by, Including gas pipeline (1) connected with each other, electric control valve (2), controller (3) and energy supply module (4), the controller (3) is built-in for data linear fitting mathematical model; The gas pipeline (1) includes the gas inlet end (8), the detection part (9) and the gas outlet end (10), a plurality of flow detection sensors (11) for measuring gas flow and direction are equidistantly arranged in the detection part (9), the flow detection sensor (11) and the electric control valve (2) are electrically connected with the controller (3), the gas inlet end (8) is provided with a control structure, the control structure includes a control pipe (12), a wire guide channel (13) is spirally arranged on the inner side wall of the control pipe (12), a lead wire (14) for electrically connecting the flow detection sensor (11) and the controller (3) is arranged in the wire guide channel (13), a sealant (15) is arranged between the lead wire (14) and the wire guide channel (13); It also includes a sealing element (16), the sealing element (16) includes an integrally formed sealing cover (17) and a sealing rod (19), the sealing cover (17) is provided with a sealing ring (18) on the lower side, the sealing rod (19) is spirally provided with a channel groove on the outer side wall, and the channel groove is abutted and connected with the wire guide channel (13); The energy supply module (4) contains a micro energy storage system, the micro energy storage system is electrically connected with the electric control valve (2), the controller (3) and the flow detection sensor (11), and the micro energy storage system contains an energy collector (5), an energy storage device (6) and a control chip (7) electrically connected with each other, and the control chip (7) is used for adjusting and controlling output energy.

2. The intelligent safety valve control system of claim 1, wherein, The channel groove is also provided with a reinforcing layer (20), and the reinforcing layer (20) is a soft rubber layer.

3. The intelligent safety valve control system of claim 2, wherein, The collector is a solar energy collection plate, and the energy storage device (6) is a capacitor energy storage device.

4. The intelligent safety valve control system of claim 3, wherein, The energy supply module (4) further comprises an external power supply (21), and a PMIC module is further arranged between the external power supply (21) and the energy storage device (6).

5. The intelligent safety valve control system of claim 4, wherein, It also includes a gas leakage detector (22) and an alarm, and the gas leakage detector (22) and the alarm are electrically connected with the controller (3).

6. The intelligent safety valve control system of claim 5, wherein, The flow detection sensor (11) is an electromagnetic flow sensor.

7. The intelligent safety valve control method applied to the intelligent safety valve control system of claim 6, characterized in that, It includes a test method and a working method, specifically the following steps: S1, after the whole intelligent safety valve control system is correctly installed in the household scene, after installation inspection, no error is found, a plurality of flow detection sensors (11) are marked in order from the gas inlet end (8) to the gas outlet end (10), and are marked as Q1, Q2 to Qn, wherein Q1 is arranged at the gas inlet end (8), and Qn is arranged at the gas outlet end (10); and confirm the common part and the exclusive part, and then enter the test method stage; S2, only open the kitchen gas equipment, measure the measurement data C1, C2 to Cn of the plurality of flow detection sensors (11); only open the gas heating equipment, and obtain the measurement data R1, R2 to Rn of the plurality of flow detection sensors (11); S3, calculate the difference data C2-C1, C3-C2 to Cn-Cn-1 of the measurement data adjacent to each other; similarly, R2-R1, R3-R2 to Rn-Rn-1, and the common part, then the kitchen gas equipment and gas heat equipment are added and operated, and the difference data is returned to the controller (3) for storage and fitting, forming the normal use data of the household scene; S4, after normal use, measure the difference data every T time, and transmit the difference data of this measurement to the controller (3) for comparison and analysis with the normal use data; If all the difference data are available, and the data in the controller (3) are archived or can meet the linear fitting, or all the difference data are 0, it is normal; If from a certain difference data, the subsequent difference data is 0 or negative, or the difference data before and after a certain difference data are normal, but the certain difference data does not meet the linear fitting data, then there is gas leakage between the two flow detection sensors (11) corresponding to the certain difference data, at this time the controller (3) will shut down the electric control valve (2) in time, and check in time; If the first difference data is negative, there is no difference data or negative number after it; or the first difference data does not meet the linear fitting data, and the subsequent difference data is normal, then the gas inlet end (8) connection leaks; If all the difference data are available, but do not meet the fitting formula, then the gas outlet end (10) leaks, at this time the controller (3) will shut down the electric control valve (2) in time, and check in time.

8. The intelligent safety valve control method of claim 7, wherein, The measurement data includes flow value and direction value, and the direction of gas to the gas equipment is set as positive square, and vice versa as negative direction.

9. The intelligent safety valve control method of claim 8, wherein, The difference data is measured by adjusting the gas consumption of the gas equipment in the test method, and the linear fitting formula of the difference data is formed through the mathematical model by measuring the measurement data many times.

Images