Static pressure detection method, device and equipment and blood pressure simulator

Abstract

The invention provides a static pressure detection method, device and equipment and a blood pressure simulator. The device comprises a gas source, a gas container and a pressure detection device, a first gas flow control device is arranged between the gas source and the gas container; a gas outlet is formed in the gas container and used for being communicated with a gas path inlet of the sphygmomanometer; the pressure detection device is used for detecting pressure in the gas container; the first gas flow control device is used for adjusting the gas flow from the gas source to the gas container according to the pressure value detected by the pressure detection device. According to the device provided by the invention, the pressure in the gas container can be always kept within the error range of the preset pressure value, and meanwhile, the pressure value detected by the sphygmomanometer is always kept within the error range of the preset pressure value, so that the testing accuracy of the sphygmomanometer by the blood pressure simulator in a static pressure calibration mode is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical technologies, and particularly to a static pressure detection method, device, equipment, and blood pressure simulator. Background Art

[0002] Static pressure detection is one of the important indicators for evaluating the performance of a sphygmomanometer. In static pressure detection, a blood pressure simulator provides a stable pressure value to the sphygmomanometer, and then it is observed whether the sphygmomanometer can accurately read and display this pressure value.

[0003] However, although the blood pressure simulator can provide a stable pressure value to the sphygmomanometer, since most sphygmomanometers adopt a micro-leakage valve solution (the micro-leakage valve is usually a mechanical valve and is not controlled by a circuit), during the process of static pressure detection, the sphygmomanometer cannot be stabilized at a certain pressure value, resulting in the sphygmomanometer being unable to accurately read the pressure value provided by the blood pressure simulator. In the prior art, in order to ensure that the sphygmomanometer accurately reads this pressure value, the blood pressure simulator is usually directly connected to the sensor provided on the PCB inside the sphygmomanometer to read the pressure value. However, to directly connect the blood pressure simulator to the sensor provided on the PCB, the sphygmomanometer needs to be disassembled. However, when disassembling the sphygmomanometer, problems such as PCB deformation and intrusion of human hand sweat may occur, making the pressure value read by the sensor still inaccurate, resulting in errors in static pressure detection.

[0004] Therefore, how to improve the test accuracy of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode has become a problem to be solved at present. Summary of the Invention

[0005] The present invention provides a static pressure detection method, device, equipment, and blood pressure simulator to solve the defect of low accuracy in static pressure detection in the prior art.

[0006] The present invention provides a static pressure detection device, including a gas source, a gas container, a pressure detection device, and a moisture removal device; between the gas source and the gas container, a first gas flow control device is provided;

[0007] A gas outlet is provided on the gas container, and the gas outlet is used to communicate with the gas path inlet of the sphygmomanometer;

[0008] The pressure detection device is used to detect the pressure inside the gas container; the first gas flow control device is used to adjust the size of the gas flow from the gas source to the inside of the gas container according to the pressure value detected by the pressure detection device;

[0009] The first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K;

[0010] The air outlet of the air source is communicated with the inlet of the moisture exhaust device; the outlet of the moisture exhaust device is communicated with one end of the first gas flow control device, and the other end of the first gas flow control device is communicated with the inlet of the gas container.

[0011] Further, for the static pressure detection device as described above, a second gas flow control device is provided on the gas path between the outlet of the gas container and the pressure detection device.

[0012] Further, for the static pressure detection device as described above, the moisture exhaust device includes: an oil-water separation mechanism, a water container, and a heating device;

[0013] The water container is arranged below the oil-water separation mechanism for collecting the liquid separated by the oil-water separation mechanism; the heating device is arranged on the water container for heating the liquid in the water container.

[0014] Further, for the static pressure detection device as described above, it further includes a liquid drying device; the liquid drying device is used to disperse the heated steam in the water container.

[0015] Further, for the static pressure detection device as described above, the gas container includes: a gas inlet channel, a gas outlet channel, and a gas accommodation cavity; the cross-sectional area of the gas accommodation cavity is at least 3 times or more of the cross-sectional area of the gas inlet channel and at least 3 times or more of the cross-sectional area of the gas outlet channel;

[0016] At the connection of the gas inlet channel, the gas outlet channel and the gas accommodation cavity, the corners are all greater than 75°.

[0017] The present invention also provides a blood pressure simulator, including the static pressure detection device as described in any one of the above.

[0018] The present invention also provides a static pressure detection method, including:

[0019] Connect the gas path inlet of the sphygmomanometer with the gas outlet of the blood pressure simulator;

[0020] Set a certain preset static pressure value on the blood pressure simulator;

[0021] Start the inflation source, so that the gas in the air source enters the gas container after passing through the moisture exhaust device;

[0022] Detect the pressure in the gas container through the pressure detection device to obtain a first pressure value;

[0023] Compare the first pressure value with a preset static pressure value. According to the comparison result, control the first gas flow control device or the second gas flow control device so that the absolute difference between the first pressure value and the static pressure value is within a first preset value range; the first preset value range is the range corresponding to the voltage stabilization state of the blood pressure simulator.

[0024] The first gas flow control device includes: an electro-pneumatic proportional valve and / or a solenoid valve K.

[0025] Further, in the static pressure detection method as described above, the step of controlling the first gas flow control device or the second gas flow control device according to the comparison result so that the absolute difference between the first pressure value and the static pressure value is within a first preset value range includes:

[0026] Repeatedly monitor the absolute value of the first difference between the first pressure value and the preset static pressure value. When the absolute value of the first difference is greater than or equal to a second preset value, control the second gas flow control device or gradually increase the control value of the electro-pneumatic proportional valve from a first control value until the absolute value of the first difference is less than the second preset value.

[0027] Repeatedly monitor the absolute value of the second difference between the first pressure value and the preset static pressure value. When the absolute value of the second difference is greater than or equal to a third preset value and less than the second preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at a second control value until the absolute value of the second difference is less than the third preset value; wherein, the second control value is less than the first control value.

[0028] Repeatedly monitor the absolute value of the third difference between the first pressure value and the preset static pressure value. When the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at a third control value until the absolute value of the third difference is less than the first preset value.

[0029] Wherein, the third control value is determined according to multiple pressure values collected in real time by the pressure detection device; and the third control value is less than the second control value.

[0030] Repeatedly monitor the absolute value of the fourth difference between the first pressure value and the preset static pressure value. When the absolute value of the fourth difference is less than the first preset value, enter the voltage stabilization state and stop the adjustment.

[0031] Further, in the static pressure detection method described above, determine the first moment when the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value. Based on the first moment, during the period until the end of this static pressure detection, if the absolute value of the third difference is greater than the third preset value and less than or equal to the fourth preset value, by controlling the second gas flow control device or controlling the electro-pneumatic proportional valve at the third control value, make the absolute value of the third difference less than the first preset value.

[0032] Further, in the static pressure detection method described above, the third control value is determined based on multiple pressure values collected in real time by the pressure detection device, including:

[0033] Judge whether the multiple pressure values detected by the pressure detection device are the multiple pressure values corresponding to the current detection state; in the case where the multiple pressure values are the multiple pressure values corresponding to the current detection state, determine the third control value according to the multiple pressure values;

[0034] In the case where the multiple pressure values are not the multiple pressure values corresponding to the current detection state, clear the multiple pressure values collected in the cache and determine the third control value by re-collecting multiple pressure data.

[0035] Further, in the static pressure detection method described above, controlling the first gas flow control device according to the comparison result to make the difference between the first pressure value and the static pressure value within the first preset value range includes:

[0036] Repeatedly monitor the difference between the first pressure value and the preset static pressure value, and by controlling the solenoid valve K, make the difference between the first pressure value and the static pressure value within the first preset value range.

[0037] The present invention also provides a static pressure detection device, including:

[0038] A connection unit for connecting the gas path inlet of the sphygmomanometer to the gas outlet of the blood pressure simulator;

[0039] A setting unit for setting a certain preset static pressure value on the blood pressure simulator;

[0040] An inflation unit for starting an inflation source so that the gas in the gas source enters the gas container after passing through a moisture removal device;

[0041] A detection unit for detecting the pressure in the gas container through a pressure detection device to obtain a first pressure value;

[0042] A comparison unit for comparing the first pressure value with the preset static pressure value;

[0043] A control unit, configured to control the first gas flow control device or the second gas flow control device according to the comparison result, so that the difference between the first pressure value and the static pressure value is within a first preset range; the first preset range is the range corresponding to the voltage stabilization state of the blood pressure simulator.

[0044] The first gas flow control device includes: an electro-pneumatic proportional valve and / or a solenoid valve K.

[0045] Further, for the static pressure detection device as described above, the control unit further includes:

[0046] A first monitoring unit, configured to repeatedly monitor the absolute value of the first difference between the first pressure value and a preset static pressure value;

[0047] A first control unit, configured to, when the absolute value of the first difference is greater than or equal to a second preset value, control the second gas flow control device, or gradually increase the control value of the electro-pneumatic proportional valve from a first control value until the absolute value of the first difference is less than the second preset value;

[0048] A second monitoring unit, configured to repeatedly monitor the absolute value of the second difference between the first pressure value and a preset static pressure value;

[0049] A second control unit, configured to, when the absolute value of the second difference is greater than or equal to a third preset value and less than the second preset value, control the second gas flow control device, or control the electro-pneumatic proportional valve at a second control value until the absolute value of the second difference is less than the third preset value; wherein, the second control value is less than the first control value;

[0050] A third monitoring unit, repeatedly monitoring the absolute value of the third difference between the first pressure value and a preset static pressure value;

[0051] A third control unit, configured to, when the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value, control the second gas flow control device, or control the electro-pneumatic proportional valve at a third control value until the absolute value of the third difference is less than the first preset value;

[0052] Wherein, the third control value is determined according to a plurality of pressure values collected by the pressure detection device in real time; and the third control value is less than the second control value;

[0053] A fourth monitoring unit, configured to repeatedly monitor the absolute value of the fourth difference between the first pressure value and a preset static pressure value;

[0054] A fourth control unit, configured to enter the voltage stabilization state and stop adjusting when the absolute value of the fourth difference is less than the first preset value.

[0055] Further, for the static pressure detection device described above, the third control unit includes:

[0056] A judgment unit, configured to judge whether a plurality of pressure values detected by the pressure detection device are the plurality of pressure values corresponding to the current detection state;

[0057] A first determination unit, configured to determine the third control value according to the plurality of pressure values when the plurality of pressure values are the plurality of pressure values corresponding to the current detection state;

[0058] A clearing unit, configured to clear the plurality of pressure values collected in the cache when the plurality of pressure values are not the plurality of pressure values corresponding to the current detection state;

[0059] A second determination unit, configured to re-collect a plurality of pressure data, and determine the third control value based on the re-collected plurality of pressure data.

[0060] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the static pressure detection method described in any one of the above is implemented.

[0061] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the static pressure detection method described in any one of the above is implemented.

[0062] The present invention also provides a computer program product, including a computer program. When the computer program is executed by a processor, the static pressure detection method described in any one of the above is implemented.

[0063] A static pressure detection method, device, equipment, and blood pressure simulator provided by the present invention adjust the pressure in the gas container through the first gas flow control device, so that the pressure in the gas container can always be maintained within the error range of the preset pressure value. Thus, it is ensured that the pressure value detected by the sphygmomanometer always remains within the error range of the preset pressure value, thereby improving the test accuracy of the sphygmomanometer by the blood pressure simulator in the static pressure calibration mode. Description of the Drawings

[0064] Figure 1 It is a schematic structural diagram of the static pressure detection device provided by the present invention;

[0065] Figure 2 It is one of the flowcharts of the static pressure detection method provided by the present invention;

[0066] Figure 3 It is the second of the static pressure detection methods provided by the present invention;

[0067] Figure 4 It is a schematic structural diagram of the electronic device provided by the present invention. Specific embodiments

[0068] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0069] As a high-precision device, the blood pressure simulator plays a crucial role in the calibration and verification process of blood pressure monitors. It can simulate real human blood pressure fluctuations, including key parameters such as systolic blood pressure and diastolic blood pressure, so as to ensure that the blood pressure monitor can provide accurate measurement results during actual use. Using the blood pressure simulator to detect the static pressure of the blood pressure monitor is mainly to ensure the measurement accuracy of the blood pressure monitor under static conditions. Static pressure measurement is one of the important indicators for evaluating the performance of a blood pressure monitor. It helps to detect possible deviations or faults in the measurement process of the blood pressure monitor, so as to ensure that the blood pressure monitor can provide reliable measurement results during actual use. Its detection principle is as follows: in static pressure detection, the blood pressure simulator provides a stable pressure value to the blood pressure monitor, and then observes whether the blood pressure monitor can accurately read and display this pressure value. This process is similar to the calibration process when using a mercury blood pressure monitor for blood pressure measurement. The blood pressure simulator will set multiple indication points (such as 100 mmHg, 200 mmHg, 300 mmHg), and these indication points usually cover the blood pressure ranges that may be encountered in actual blood pressure measurement. At each indication point, the blood pressure simulator provides a stable pressure value and records the reading of the blood pressure monitor. By comparing the standard value provided by the blood pressure simulator and the reading of the blood pressure monitor, the error range of the blood pressure monitor can be obtained. If the reading of the blood pressure monitor is within the error range, it is considered that the blood pressure monitor is accurate in static pressure detection. If the error exceeds the acceptable range, the blood pressure monitor needs to be calibrated or repaired.

[0070] However, although the blood pressure simulator can provide a stable pressure value to the sphygmomanometer, since most sphygmomanometers adopt a micro-leakage valve solution (the micro-leakage valve is usually a mechanical valve and is not controlled by a circuit), during the static pressure detection process, the sphygmomanometer cannot be stabilized at a certain indication value set by the blood pressure simulator, resulting in the sphygmomanometer being unable to accurately read this pressure value. In the prior art, in order for the sphygmomanometer to accurately read this pressure value, the blood pressure simulator is usually directly connected to the sensor provided on the PCB inside the sphygmomanometer to read the pressure value. However, to achieve a direct connection between the blood pressure simulator and the sensor provided on the PCB, the sphygmomanometer needs to be disassembled, and problems such as inaccurate pressure values may occur during the disassembly of the sphygmomanometer. The reasons are as follows: interference such as PCB deformation and intrusion of human hand sweat.

[0071] The blood pressure simulator mainly includes a high-precision sensor, an air pump, a pressure control system, a display screen, and a user interface, etc. Among them, the high-precision sensor is used to detect the pressure change during the blood pressure simulation process to ensure the accuracy and reliability of the simulated blood pressure value. The air pump provides a stable pressure source for the blood pressure simulator and is used to simulate the rising process of blood pressure. By adjusting the inflation speed and pressure magnitude, different test requirements can be met. The pressure control system is used to precisely control the pressure change during the blood pressure simulation process to ensure that the simulated blood pressure waveform conforms to the actual situation, thereby realizing various test modes such as static pressure test, dynamic pressure test, leakage test, and overpressure test. The display screen is used to display various parameters and waveforms during the blood pressure simulation process, facilitating users to observe and record. The user interface provides an interface for users to interact with the blood pressure simulator, including buttons, touch screens, etc. Users can set test parameters, start tests, view test results, etc. through the user interface. At the same time, the user interface also supports connection to external devices (such as a computer) for data analysis and processing.

[0072] Figure 1 The structural schematic diagram of the static pressure detection device provided by the present invention is as Figure 1 shown. The device includes: an air source 1, a gas container 5, and a pressure detection device 6; between the air source 1 and the gas container 5, a first gas flow control device is provided; a gas outlet 7 is provided on the gas container 5, and the gas outlet 7 is used to communicate with the gas path inlet of the sphygmomanometer; the pressure detection device 6 is used to detect the pressure inside the gas container 5; the first gas flow control device is used to adjust the gas flow rate from the air source 1 to the gas container 5 according to the pressure value detected by the pressure detection device 6.

[0073] Specifically, when the device is in use, the gas outlet 7 of the gas container 5 is hermetically connected to the gas path inlet of the sphygmomanometer. Then, a certain standard pressure indication value is preset for the blood pressure simulator, and the inflation source is activated so that the gas in the gas source 1 is transported to the gas container 5 through the gas path. The gas container 5 serves as a gas buffer chamber, which can buffer and stabilize the gas pressure. When the pressure in the gas container 5 is stable and reaches the preset standard pressure indication value, the valve provided on the gas outlet 7 is opened, and the gas with stable pressure is transported to the air chamber (cuff) of the sphygmomanometer through the gas outlet 7. Thus, the pressure sensor of the sphygmomanometer can read this stable pressure value.

[0074] Among them, the function of the first gas flow control device is to make the actual pressure value in the gas container 5 detected by the pressure detection device 6 always consistent with the standard pressure indication value or always within the preset error range by adjusting the size of the gas flow rate. The specific adjustment method can be as follows: when the actual pressure in the gas container 5 detected by the pressure detection device 6 is much smaller than the standard pressure indication value, the gas flow rate adjustment gear of the first gas flow control device is turned up, so that the gas in the gas container 5 can be quickly transported to the gas container 5, so that the actual pressure detected by the pressure detection device 6 can quickly approach the standard pressure indication value and improve the detection efficiency of the blood pressure simulator; when the actual pressure detected by the pressure detection device 6 is less than the standard pressure indication value, but the error range is not very large, the gas flow rate adjustment value is set to a lower gear to avoid the gas pressure in the gas container 5 exceeding the limit, so that the actual pressure detected by the pressure detection device 6 can also quickly approach the standard pressure indication value. In the embodiment of the present invention, the pressure detection device 6 can be a barometric pressure sensor.

[0075] The static pressure detection device provided by the present invention adjusts the pressure in the gas container through the first gas flow control device, so that the pressure in the gas container can always be kept within the error range of the preset pressure value, thereby ensuring that the pressure value detected by the sphygmomanometer is always kept within the error range of the preset pressure value, and thus improving the test accuracy of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode.

[0076] Furthermore, the first gas flow control device includes: an electro-pneumatic proportional valve 31 and / or an electromagnetic valve K32.

[0077] Specifically, the electro-pneumatic proportional valve precisely controls the position and opening degree of the valve core through electromagnetic force, enabling high-precision regulation of gas flow. This high-precision control allows the blood pressure simulator to more accurately meet the preset pressure, improving the stability and reliability of the blood pressure simulator in the static pressure calibration mode. In addition, the electro-pneumatic proportional valve has a fast response speed and can respond to control signals within an extremely short time, thereby quickly adjusting the gas flow. This fast response ability enables the blood pressure simulator to more promptly adapt to changes in flow requirements, improving the dynamic performance of the blood pressure simulator in the static pressure calibration mode. Moreover, since the electro-pneumatic proportional valve provided by the present invention is equipped with a control module that can achieve programmable control, this means that users can preset different flow regulation schemes according to different application requirements and achieve automated control through programming. This flexibility enables the electro-pneumatic proportional valve to adapt to various complex application scenarios, improving the adaptability and flexibility of the blood pressure simulator in the static pressure calibration mode. Furthermore, the electro-pneumatic proportional valve has the ability of continuous regulation and can achieve smooth regulation of gas flow. This continuous regulation ability enables the blood pressure simulator to more smoothly transition between different flow states, avoiding pressure fluctuations and instability caused by sudden changes in flow.

[0078] The solenoid valve K32, as another device for regulating gas flow, has a faster speed of regulating gas flow. Therefore, when the pressure in the gas container 5 is much lower than the preset pressure standard value, the solenoid valve K can be opened to quickly transport the gas in the gas source to the gas container 5, so that the actual pressure detected by the pressure detection device 6 can quickly approach the preset pressure standard value, thereby improving the test efficiency of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode.

[0079] Furthermore, the device provided by the present invention further includes a moisture removal device; the air outlet of the gas source 1 is communicated with the inlet of the moisture removal device; the outlet of the moisture removal device is communicated with one end of the first gas flow control device, and the other end of the first gas flow control device is communicated with the inlet of the gas container 5.

[0080] Specifically, when the gas is compressed, the water vapor in the air often condenses and forms water mist or droplets, which enter the circuit system, such as the electro-hydraulic proportional valve, the sensor, etc., and may cause damage to the entire system. In the device of the present invention, since it is impossible to manually drain the water inside the device, let alone drain it inside the device, the moisture in the gas is processed by the moisture drainage device, thereby increasing the service life of the entire device. Moreover, since the gas transported into the gas container 5 may be humid, when the humid gas is finally transported to the cuff of the sphygmomanometer, it will cause an error in the sensor reading of the sphygmomanometer. To avoid this error, the present application sets a moisture drainage device between the gas source and the gas container to dry the gas in the gas source 1 and finally input the dried gas into the sphygmomanometer, thereby ensuring that the reading of the pressure sensor of the sphygmomanometer is more accurate, and further improving the test accuracy of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode.

[0081] Further, a second gas flow control device 8 is provided on the gas path between the outlet of the gas container 5 and the pressure detection device 6.

[0082] Specifically, the second gas flow control device 8 is used to adjust the pressure in the gas container 5, that is, when the pressure in the gas container 5 is greater than the preset standard pressure indication value, the gas container 5 can be depressurized through the second gas flow control device 8, so that the actual pressure detected by the pressure detection device 6 is equal to the standard pressure indication value or within the error range of the standard pressure indication value. In the embodiment of the present invention, the second gas flow control device 8 can be a solenoid valve. Through the solenoid valve, it is possible to ensure that the pressure of the gas container is maintained within the preset value range. When the pressure exceeds the set value, the solenoid valve will automatically open to release the excess gas, thereby reducing the pressure; when the pressure is lower than the set value, gas can be supplemented through the gas source 1 to raise the pressure. This precise pressure adjustment ability enables the device to operate more stably. In addition, during the inflation process through the gas source 1, the pressure in the gas container 5 may be too high due to excessive gas or temperature rise, etc., even causing a safety accident. The present invention can effectively prevent this situation from occurring through the solenoid valve, ensuring the safe use of the entire device.

[0083] Further, the embodiment of the present invention provides a specific structure of a moisture drainage device, including: an oil-water separation mechanism 21, a water container 22, and a heating device 23; the water container 22 is arranged below the oil-water separation mechanism 21 and is used to collect the liquid separated by the oil-water separation mechanism 21; the heating device 23 is arranged on the water container 21 and is used to heat the liquid in the water container 21 so that it evaporates.

[0084] Furthermore, the moisture exhaust device provided by the embodiment of the present invention further includes a liquid drying device 24; the liquid drying device 24 is used to disperse the heated steam in the water container 22. In the embodiment of the present invention, the liquid drying device 24 may specifically be a fan.

[0085] By adding a fan to the moisture exhaust device, the static pressure detection device provided by the present invention improves the evaporation rate of the liquid in the water container 22, thereby further improving the test efficiency of the sphygmomanometer by the blood pressure simulator in the static pressure calibration mode.

[0086] Furthermore, for the static pressure detection device provided by the present invention, the gas container 5 includes: a gas inlet channel 51, a gas outlet channel 52, and a gas accommodation cavity; the cross-sectional area of the gas accommodation cavity is at least 3 times or more of the cross-sectional area of the gas inlet channel 51 and at least 3 times or more of the cross-sectional area of the gas outlet channel 52; and at the connection of the gas inlet channel 51, the gas outlet channel 52 and the gas accommodation cavity, the corner is greater than 75°.

[0087] Specifically, as Figure 1 shown, the cross-sectional area of the gas accommodation cavity is significantly larger than the cross-sectional areas of the gas inlet channel 51 and the gas outlet channel 52, and the connecting corners are all greater than 75°. In this way, it can ensure that the gas pressure entering the gas container 5 from the gas source 1 is effectively buffered, preventing the occurrence of the "turbulence" phenomenon, so that the pressure in the gas container is more stable.

[0088] By means of the gas container with a structure design of small at both ends and large in the middle, the static pressure detection device provided by the present invention effectively improves the stability of the pressure in the gas container, thereby also improving the stability of the test process of the sphygmomanometer by the blood pressure simulator in the static pressure calibration mode.

[0089] The present invention also provides a blood pressure simulator including any one of the above static pressure detection devices.

[0090] Figure 2 One of the flowcharts of the static pressure detection method provided by the present invention is as Figure 2 shown, and the method includes the following steps:

[0091] Step 21: Connect the gas path inlet of the sphygmomanometer to the gas outlet of the blood pressure simulator;

[0092] Step 22: Set a certain preset static pressure value on the blood pressure simulator;

[0093] Step 23: Start the inflation source so that the gas in the gas source enters the gas container after passing through the moisture exhaust device;

[0094] Step 24: Detect the pressure in the gas container through the pressure detection device to obtain the first pressure value;

[0095] Step 25: Compare the first pressure value with a preset static pressure value. According to the comparison result, control the first gas flow control device or the second gas flow control device so that the difference between the first pressure value and the static pressure value is within a first preset range; the first preset range is the range corresponding to the voltage-stabilized state of the blood pressure simulator; the first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K.

[0096] Specifically, when the first pressure value and the difference from the preset static pressure value is within the first preset range, it means that the blood pressure simulator has reached the voltage-stabilized state. In the embodiments of the present invention, the first preset range is ±0.5 mmHg. Since the industry error standard for blood pressure monitors is 3 mmHg, the detection method provided by the present invention has a detection accuracy far exceeding the industry standard.

[0097] The static pressure detection method provided by the present invention detects the first pressure value in the gas container through a pressure detection device, compares the first pressure value with a preset static pressure value, and according to the comparison result, controls the first gas flow control device or the second gas flow control device so that the difference between the first pressure value and the static pressure value is within the first preset range, ensuring that the pressure in the gas container can always be maintained within the error range of the preset pressure value, thereby simultaneously ensuring that the pressure value detected by the blood pressure monitor always remains within the error range of the preset pressure value, and further improving the test accuracy of the blood pressure simulator for the blood pressure monitor in the static pressure calibration mode.

[0098] Further, the implementation solution of how to control the first gas flow control device or the second gas flow control device according to the comparison result so that the difference between the first pressure value and the static pressure value is within the first preset range will be elaborated in detail. As Figure 3 shown, Figure 3 This is the second static pressure detection method provided by the present invention. As Figure 3 shown, the method includes the following steps:

[0099] Step 31: Continuously monitor the absolute value of the first difference between the first pressure value and the preset static pressure value. When the absolute value of the first difference is greater than or equal to a second preset value, control the second gas flow control device, or gradually increase the control value of the electro-pneumatic proportional valve from a first control value until the absolute value of the first difference is less than the second preset value;

[0100] Specifically, the pressure sensor samples the gas pressure in the gas container 5 continuously at a sampling frequency of Fs. The most recent n sampling data are, in order: (earliest), , , ……, (recently). Among them, the first pressure value is the pressure data value collected by the air pressure sensor most recently . At the same time, the pre-stored values controlled by the electro-pneumatic proportional valve can be read (voltage control or current control is available), corresponding to the pre-stored values at pressures of 0 mmHg, 100 mmHg, 200 mmHg, 300 mmHg, 400 mmHg, and 450 mmHg respectively, denoted as S0, S100, S200, S300, S400, and S500.

[0101] In the embodiment of the present invention, the second preset value can be 50 mmHg. When the absolute value of the first difference is greater than or equal to 50 mmHg, that is: ≥ 50 mmHg, at this time it is the large-step mode, indicating that the first pressure value and the preset static pressure value have a large difference. It is possible to make the difference between the first pressure value and the static pressure value less than the second preset value by means of rapid inflation or deflation. More specifically, when - ≤ -50 mmHg, it indicates that the pressure in the gas container 5 exceeds the preset static pressure value . Then the specific adjustment method can be: control the second gas flow control device (solenoid valve) to deflate the gas container 5. The deflation method is: first open the second gas flow control device (solenoid valve) tb1 and then immediately close it for tb2 time, and then detect and repeat the judgment, so that - 's error is within the range of -50 mmHg. When there is no solenoid valve, the rapid deflation stage is not considered, and the micro-leakage valve slowly exhausts the gas until - 's error is within the range of -50 mmHg.

[0102] When - ≥ 50 mmHg, it indicates that the pressure in the gas container 5 is less than the preset static pressure value . Then the specific adjustment method can be: set the initial control value of the electro-pneumatic proportional valve to the first control value X + a * tb0, and then gradually increase this first control value until the control value of the electro-pneumatic proportional valve is Smax. Among them, X is the pre-stored value controlled by the electro-pneumatic proportional valve, a is a coefficient obtained through experiments, tb0 is the time staying in this stage (the time staying in the large-step mode), and Smax is the full power of the electro-pneumatic proportional valve. In the embodiment of the present invention, this pre-stored value is the pre-stored value corresponding to 450 mmHg, that is, S500.

[0103] Since the first pressure value is the pressure data value collected by the air pressure sensor most recently , therefore, this in a continuous change process. Thus, the control value of the electro-pneumatic proportional valve will be adjusted accordingly according to the value. When the updated and the absolute value of the preset static pressure value is still greater than or equal to 50 mmHg, the control value of the electro-pneumatic proportional valve can be continuously adjusted to make it further increase, so as to increase the air intake speed of the gas container 5 until - <50 mmHg, and the large-step mode cycle ends.

[0104] In addition, the setting of the first control value S500 + a*tb0 needs to follow the following requirements: the control value of the electro-pneumatic proportional valve should not be too large. If it is too large, the pressure in the gas container 5 will rise and exceed the limit within an extreme time, causing the reading of the sphygmomanometer to exceed the limit value of its sensor and damaging its sensor; if the control value of the electro-pneumatic proportional valve is too small, the inflation speed of the gas container 5 will be slow, reducing the test efficiency of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode. Therefore, the pre-stored value X, the coefficient a, and the residence time tb0 at this stage need to be adjusted according to the actual situation.

[0105] The static pressure detection method provided by the present invention, in the large-step mode, gradually increases the first control value to the control value corresponding to the full power of the electro-pneumatic proportional valve, so that the inflation speed and pressure of the gas container 5 can be more precisely controlled, avoiding damage to the sphygmomanometer sensor caused by instantaneous high pressure or high-speed inflation.

[0106] Step 32: Continuously monitor the absolute value of the second difference between the first pressure value and the preset static pressure value. When the absolute value of the second difference is greater than or equal to the third preset value and less than the second preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at the second control value until the absolute value of the second difference is less than the third preset value; wherein, the second control value is less than the first control value.

[0107] Specifically, in the embodiment of the present invention, the third preset value can be 10 mmHg, that is, when the absolute value of the second difference is in the range of 50 mmHg > | - | ≥ 10 mmHg, it is the medium-step mode.

[0108] If - If ≤ -10 mmHg, the second gas flow control device is activated. After opening the solenoid valve for time tm1 and immediately closing it at time tm2, then judge and repeat. Among them, tm1 is approximately tb1 / 5, and tb2 is approximately tb2 / 3. Until the difference between the first pressure value and the static pressure value is greater than -15 mmHg, the second gas flow control device is closed.

[0109] Such as - When ≥ 10 mmHg, the control value of the electro-pneumatic proportional valve is set to the second control value. By controlling the electro-pneumatic proportional valve at the second control value until the difference between the first pressure value and the static pressure value is less than 10 mmHg. Among them, the second control value is: The preset value corresponding to +100 mmHg (if not stored, linearly interpolated from the existing storage), and this second control value is less than the first control value. Since in the middle step mode, the difference between the first pressure value and the static pressure value is relatively close, if the first control value is used to inflate or deflate the gas container, it may cause damage to the blood pressure monitor sensor.

[0110] The method provided by the present invention, in the middle step mode, adjusts the pressure in the gas container through the second control value, can accurately match the required pressure difference, thereby achieving high-precision control of the pressure, and further improving the test accuracy of the blood pressure simulator for the blood pressure monitor in the static pressure calibration mode.

[0111] Step 33: Repeatedly monitor the absolute value of the third difference between the first pressure value and the preset static pressure value. When the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value, by controlling the second gas flow control device, or controlling the electro-pneumatic proportional valve at the third control value, make the absolute value of the third difference less than the first preset value; among them, the third control value is determined according to multiple pressure values collected in real time by the pressure detection device; and the third control value is less than the second control value.

[0112] Specifically, when the absolute value of the third difference is between 10 mmHg > - | > 0.5 mmHg, this is the small step mode at this time.

[0113] If - 0.5 mmHg, the second gas flow control device is activated until the difference between the first pressure value and the static pressure value is greater than -0.5 mmHg, and the second gas flow control device is closed.

[0114] If - >0.5 mmHg, the control value of the electro-pneumatic proportional valve is set to the third control value, that is: the third control value is The corresponding preset value (if not stored, linearly interpolated from the existing storage). Among them, the third control value is calculated according to the following formula:

[0115] .

[0116] Among them, is the control value of the electro-hydraulic proportional valve corresponding to the next sampling point, is the control value of the electro-hydraulic proportional valve at the current sampling point, that is, the corresponding preset value; r, s, and t are correction parameters obtained through experiments. It can be seen that the third control value will be continuously updated according to the pressure data collected in real time by the pressure detection device.

[0117] The method provided by the present invention determines the third control value through multiple pressure values collected in real time by the pressure detection device, and controls the opening degree of the electro-hydraulic proportional valve based on the continuously updated third control value, so that the pressure in the gas container can be adjusted more accurately and stably. Therefore, the measurement error caused by pressure fluctuation or instability can be minimized, and the test accuracy and efficiency of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode are further improved.

[0118] Step 34: Continuously monitor the absolute value of the fourth difference between the first pressure value and the preset static pressure value. When the absolute value of the fourth difference is less than the first preset value, enter the voltage stabilization state and stop the adjustment.

[0119] Specifically, when | - | < 0.5 mmHg, it is the static mode. In this mode, it is not necessary to adjust the pressure in the gas container 5 anymore, unless the absolute difference of | - | is greater than 0.5 mmHg, then repeat steps 31 - 34 until | - | < 0.5 mmHg.

[0120] The static pressure detection method provided by the present invention sets the difference range between the first pressure value and the static pressure value as multiple intervals, and according to these multiple intervals, different control modes (large-step mode, medium-step mode, small-step mode, static mode) are respectively set for the control value of the electro-hydraulic proportional valve, so that different pressure states in the gas container 5 can adopt different adjustment methods, enabling the target pressure state to be reached quickly and stably, and improving the test efficiency and accuracy of the blood pressure simulator for the sphygmomanometer in the static pressure calibration mode.

[0121] Further, determine the first moment when the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value. Based on this first moment, during the period until the end of this static pressure detection, if the absolute value of the third difference is greater than the third preset value and less than or equal to the fourth preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at the third control value to make the absolute value of the third difference less than the first preset value.

[0122] Specifically, in the embodiment of the present invention, the fourth preset value is 15 mmHg. When the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value, it corresponds to the small step mode. In this small step mode, if some unexpected situations occur (for example, the electro-pneumatic proportional valve jitters or the air pipe is bent), resulting in 10 mmHg > | - | > 15 mmHg, still control the second gas flow control device or control the electro-pneumatic proportional valve at the third control value to make the absolute difference between the first pressure value and the static pressure value less than the first preset value. This is because if due to these unexpected situations, returning to the medium step mode or the large step mode for readjustment will cause the following problems:

[0123] On the one hand, it may cause damage to the sensor of the sphygmomanometer or other mechanical components and electronic components due to excessive adjustment ratio, thereby reducing the detection efficiency; on the other hand, it may lead to a longer time required for the detection process to adjust and calibrate the sphygmomanometer, thereby reducing the detection efficiency.

[0124] Therefore, in order to improve the detection efficiency, it is necessary to record the moment when entering the small step mode for the first time, and based on this first moment, during the period until the end of this static pressure detection, if 10 mmHg > | - | > 15 mmHg occurs, then inflate or deflate the gas container according to the control method of the small step mode until the absolute value of the third difference is less than the first preset value (0.5 mmHg).

[0125] The static pressure detection method provided by the present invention, by counting the moment when entering the small step mode for the first time, and based on this moment, during the period until the end of this static pressure detection, when the absolute value of the third difference is greater than the third preset value and less than or equal to the fourth preset value, still inflate or deflate the gas container according to the control method of the small step mode, effectively improves the efficiency of static pressure detection.

[0126] Further, the implementation solution of how to determine the third control value is further elaborated in detail below:

[0127] Determine whether the multiple pressure values detected by the pressure detection device are the multiple pressure values corresponding to the current detection state; in the case where the multiple pressure values are the multiple pressure values corresponding to the current detection state, determine the third control value according to the multiple pressure values; in the case where the multiple pressure values are not the multiple pressure values corresponding to the current detection state, clear the multiple pressure values collected in the cache, re-collect multiple pressure data, and determine the third control value based on the re-collected multiple pressure data.

[0128] Specifically, there are several different situations for the so-called current detection state. One is the situation corresponding to the transition from one static pressure value detection state to another static pressure value detection state, such as (switching from the static pressure detection of 60 mmHg to the static pressure detection of 120 mmHg); another is the situation where, although in the current static pressure value detection state, if an accident such as pipeline detachment occurs, resulting in serious air leakage in the gas container. When these situations occur, it is necessary to clear the pressure sampling values in the cache and re-collect the pressure values to calculate the third control value. Because some of the pressure sampling values in the previous cache and some of the collected pressure values are the sampling values corresponding to the previous detection state, if the sampling values corresponding to the previous detection state are used to calculate the third control value, it will lead to low calculation accuracy of the third control value, making the air pressure adjustment of the gas container inaccurate, and thus resulting in the defects of decreased test accuracy and efficiency of the sphygmomanometer in the static pressure calibration mode.

[0129] The static pressure detection provided by the present invention calculates the third control value in different cases by determining whether the multiple pressure values detected by the pressure detection device are the multiple pressure values corresponding to the current detection state, thereby improving the test accuracy and efficiency of the sphygmomanometer in the static pressure calibration mode.

[0130] Furthermore, the present invention further includes: repeatedly monitoring the difference between the first pressure value and the preset static pressure value, and controlling the solenoid valve K to make the difference between the first pressure value and the static pressure value within the first preset value range.

[0131] Specifically, since the solenoid valve K has a fast inflation and deflation speed, the present invention can more quickly make the difference between the first pressure value and the static pressure value within the first preset value range (0.5 mmHg) by controlling the solenoid valve K, thereby improving the efficiency of static pressure detection.

[0132] Figure 4 Illustrates a schematic diagram of the physical structure of an electronic device, such as Figure 4As shown in the figure, the electronic device may include: a processor 410, a communications interface 820, a memory 430, and a communication bus 440. Among them, the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 may call logical instructions in the memory 430 to execute the static pressure detection method, and this method includes:

[0133] Connect the gas path inlet of the sphygmomanometer to the gas outlet of the blood pressure simulator;

[0134] Set a certain preset static pressure value on the blood pressure simulator;

[0135] Start the inflation source so that the gas in the gas source enters the gas container after passing through the moisture removal device;

[0136] Detect the pressure in the gas container through the pressure detection device to obtain the first pressure value;

[0137] Compare the first pressure value with the preset static pressure value, and according to the comparison result, control the first gas flow control device or the second gas flow control device so that the difference between the first pressure value and the static pressure value is within the first preset value range; the first preset value range is the range corresponding to the stable pressure state of the blood pressure simulator;

[0138] The first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K.

[0139] In addition, when the logical instructions in the above-mentioned memory 430 are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that makes contributions to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. And the foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0140] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the static pressure detection method provided by each of the above methods, and the method includes: connecting the gas path inlet of the sphygmomanometer to the gas outlet of the blood pressure simulator;

[0141] Set a certain preset static pressure value on the blood pressure simulator;

[0142] Start the gas charging source, so that the gas in the gas source enters the gas container after passing through the moisture removal device;

[0143] Detect the pressure in the gas container through the pressure detection device to obtain a first pressure value;

[0144] Compare the first pressure value with the preset static pressure value, and according to the comparison result, control the first gas flow control device or the second gas flow control device to make the difference between the first pressure value and the static pressure value within a first preset value range; the first preset value range is the range corresponding to the stable pressure state of the blood pressure simulator;

[0145] The first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K.

[0146] In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the execution of the static pressure detection method provided by each of the above methods, and the method includes: connecting the gas path inlet of the sphygmomanometer to the gas outlet of the blood pressure simulator;

[0147] Set a certain preset static pressure value on the blood pressure simulator;

[0148] Start the gas charging source, so that the gas in the gas source enters the gas container after passing through the moisture removal device;

[0149] Detect the pressure in the gas container through the pressure detection device to obtain a first pressure value;

[0150] Compare the first pressure value with the preset static pressure value, and according to the comparison result, control the first gas flow control device or the second gas flow control device to make the difference between the first pressure value and the static pressure value within a first preset value range; the first preset value range is the range corresponding to the stable pressure state of the blood pressure simulator;

[0151] The first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K.

[0152] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0153] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, server).

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A static pressure detection device, characterized in that It includes a gas source, a gas container, a pressure detection device, and a moisture removal device; between the gas source and the gas container, a first gas flow control device is provided; A gas outlet is provided on the gas container, and the gas outlet is used to communicate with the gas path inlet of the sphygmomanometer; The pressure detection device is used to detect the pressure inside the gas container; the first gas flow control device is used to adjust the gas flow rate from the gas source into the gas container according to the pressure value detected by the pressure detection device, and finally make the pressure inside the gas container reach the target pressure value; the first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K; The gas outlet of the gas source is communicated with the inlet of the moisture removal device; the outlet of the moisture removal device is communicated with one end of the first gas flow control device, and the other end of the first gas flow control device is communicated with the inlet of the gas container.

2. The static pressure detection device according to claim 1, characterized in that, On the gas path between the outlet of the gas container and the pressure detection device, a second gas flow control device is provided.

3. The static pressure detection device according to claim 1, wherein The moisture removal device includes: an oil-water separation mechanism, a water container, and a heating device; The water container is arranged below the oil-water separation mechanism and is used to collect the liquid separated by the oil-water separation mechanism; the heating device is arranged on the water container and is used to heat the liquid in the water container.

4. The static pressure detection device according to claim 3, wherein It further includes a liquid blowing device; the liquid blowing device is used to disperse the steam heated in the water container.

5. The static pressure detection device according to any one of claims 1-4, characterized in that, The gas container includes: a gas inlet channel, a gas outlet channel, and a gas accommodation cavity; the cross-sectional area of the gas accommodation cavity is at least 3 times more than the cross-sectional area of the gas inlet channel and at least 3 times more than the cross-sectional area of the gas outlet channel; At the connection of the gas inlet channel, the gas outlet channel and the gas accommodation cavity, the corners are all greater than 75°.

6. A blood pressure simulator, characterized in that, It includes the static pressure detection device as described in any one of the above.

7. A method for static pressure detection using the blood pressure simulator according to claim 6, characterized in that, It includes: Connect the gas path inlet of the sphygmomanometer with the gas outlet of the blood pressure simulator; Set a certain preset static pressure value on the blood pressure simulator; Start the inflation source, so that the gas in the gas source enters the gas container after passing through the moisture removal device; Detect the pressure inside the gas container through the pressure detection device to obtain the first pressure value; Compare the first pressure value with the preset static pressure value, and according to the comparison result, control the first gas flow control device or the second gas flow control device to make the absolute difference between the first pressure value and the static pressure value within the first preset value range; the first preset value range is the range corresponding to the steady-state pressure of the blood pressure simulator; The first gas flow control device includes: an electro-pneumatic proportional valve and / or solenoid valve K.

8. The static pressure detection method according to claim 7, wherein According to the comparison result, controlling the first gas flow control device or the second gas flow control device to make the absolute difference between the first pressure value and the static pressure value within the first preset value range includes: Repeatedly monitor the absolute value of the first difference between the first pressure value and the preset static pressure value. When the absolute value of the first difference is greater than or equal to the second preset value, by controlling the second gas flow control device or by gradually increasing the control value of the electro-pneumatic proportional valve from the first control value until the absolute value of the first difference is less than the second preset value; Repeatedly monitor the absolute value of the second difference between the first pressure value and the preset static pressure value. When the absolute value of the second difference is greater than or equal to the third preset value and less than the second preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at the second control value until the absolute value of the second difference is less than the third preset value; wherein, the second control value is less than the first control value. Repeatedly monitor the absolute value of the third difference between the first pressure value and the preset static pressure value. When the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at the third control value until the absolute value of the third difference is less than the first preset value. Wherein, the third control value is determined according to multiple pressure values collected by the pressure detection device in real time; and the third control value is less than the second control value. Repeatedly monitor the absolute value of the fourth difference between the first pressure value and the preset static pressure value. When the absolute value of the fourth difference is less than the first preset value, enter the voltage stabilization state and stop the adjustment.

9. The static pressure detection method according to claim 8, wherein Determine the first moment when the absolute value of the third difference is greater than or equal to the first preset value and less than the third preset value. Based on the first moment, during the period until the end of this static pressure detection, if the absolute value of the third difference is greater than the third preset value and less than or equal to the fourth preset value, control the second gas flow control device or control the electro-pneumatic proportional valve at the third control value to make the absolute value of the third difference less than the first preset value.

10. The static pressure detection method according to claim 8, characterized in that, The determination of the third control value according to multiple pressure values collected by the pressure detection device in real time includes: Judge whether the multiple pressure values detected by the pressure detection device are the multiple pressure values corresponding to the current detection state; when the multiple pressure values are the multiple pressure values corresponding to the current detection state, determine the third control value according to the multiple pressure values. When the multiple pressure values are not the multiple pressure values corresponding to the current detection state, clear the multiple pressure values collected in the buffer and determine the third control value by re-collecting multiple pressure data.

11. The static pressure detection method according to claim 7, wherein The control of the first gas flow control device according to the comparison result to make the difference between the first pressure value and the static pressure value within the first preset value range includes: Repeatedly monitor the difference between the first pressure value and the preset static pressure value, and control the solenoid valve K to make the difference between the first pressure value and the static pressure value within the first preset value range.

12. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the static pressure detection method according to any one of claims 7 to 11.

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