Airtightness detection device and sphygmomanometer production method

Abstract

The invention relates to the field of air tightness detection, in particular to an air tightness detection device and a sphygmomanometer production method, and the air tightness detection device comprises a detection air port, an electric access port, an electric signal acquisition assembly and a processor; the detection gas port is used for being connected with a gas circuit interface of a to-be-detected assembly, and the electric access port is used for being connected with a circuit interface of the to-be-detected assembly; the electric signal acquisition assembly and the to-be-tested assembly form a loop through the electric access port, and assembly characteristic electric signals in the loop are acquired; and the processor is used for determining the component type of the to-be-detected component according to the component characteristic electric signal, and executing a corresponding detection program according to the component type. Through the component characteristic electric signal in the loop after the to-be-detected component is connected into the loop, the component type of the to-be-detected component is automatically identified, the corresponding detection program is automatically selected to execute airtightness detection, time is saved, the operation steps are simple, and the detection efficiency is high.

Description

Technical Field

[0001] The present invention relates to the field of airtightness detection, and in particular to an airtightness detection device and a production method of a sphygmomanometer. Background Art

[0002] Today, as social production moves towards industrialization, a large number of products are produced in batches. However, for some products that use the air pressure inside components in actual use, airtightness testing is required in advance after production is completed.

[0003] However, it should be noted that due to the different structures and functions of different products, the specific processes of their airtight tests are also different. The airtight detection devices for products in the prior art usually require staff to manually set the type of component to be tested and call the corresponding test program before starting the airtight test of the product. Therefore, an airtight detection device in the prior art only performs airtight detection on one product for a long time. If airtight detection of multiple products is to be achieved, the operation steps will be cumbersome and time-consuming, which will greatly reduce the detection efficiency of the airtight detection.

[0004] Therefore, how to improve the efficiency of airtightness testing of different products is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] The purpose of the present invention is to provide an airtight detection device and a production method of a sphygmomanometer, so as to solve the problems of complicated operation steps and low detection efficiency in the prior art when performing airtight detection on different products.

[0006] In order to solve the above technical problems, the present invention provides an airtightness detection device, comprising a detection air port, an electrical access port, an electrical signal acquisition component and a processor;

[0007] The detection gas port is used to connect to the gas circuit interface of the component to be tested, and the electrical access port is used to connect to the circuit interface of the component to be tested;

[0008] The electrical signal acquisition component forms a loop with the component to be tested through the electrical access port, and acquires characteristic electrical signals of the component in the loop;

[0009] The processor is used to determine the component type of the component to be tested according to the component characteristic electrical signal, and execute a corresponding detection program according to the component type.

[0010] Optionally, in the airtight detection device, the electrical signal acquisition component includes a power supply, a sampling resistor and a signal processing component;

[0011] The component to be tested is connected in series with the sampling resistor;

[0012] The component characteristic electrical signal is an electrical signal obtained by the signal processing component from the sampling resistor.

[0013] Optionally, in the airtight detection device, the electrical access port includes a connector and an extension cord;

[0014] The connector is in contact with and connected to the circuit interface of the component to be tested, and is connected to the device body of the airtightness detection device through the extension line.

[0015] Optionally, in the airtight detection device, a detection host and a detection slave are included;

[0016] The detection host comprises an air supply component and at least one slave access valve; the air supply component supplies air to the detection slave through the slave access valve;

[0017] The detection slave includes a plurality of detection branches connected in parallel; the detection branch includes an opening and closing air valve, a branch air pressure detection component, a branch cylinder, a cylinder valve and a reserved port;

[0018] The first end of the on-off valve is connected to the slave access valve, and the second end of the on-off valve is connected to the reserved port and the cylinder valve respectively, and is connected to the branch cylinder through the cylinder valve;

[0019] The branch air pressure detection component is used to detect the air pressure between the cylinder valve and the opening and closing air valve;

[0020] The reserved port includes the detection gas port, the electrical access port and the electrical signal acquisition component.

[0021] A method for producing a sphygmomanometer, comprising:

[0022] Obtain the sphygmomanometer gas circuit assembly;

[0023] Connecting the gas circuit interface of the gas circuit assembly of the sphygmomanometer to the detection gas port, and connecting the circuit interface of the gas circuit assembly of the sphygmomanometer to the corresponding electrical access port;

[0024] Receive component characteristic electrical signals from the electrical signal acquisition component corresponding to the electrical access port; the electrical signal acquisition component forms a loop with the sphygmomanometer gas circuit component through the electrical access port;

[0025] Determining the component type of the corresponding blood pressure meter gas circuit component according to the component characteristic electrical signal;

[0026] Determine a corresponding detection procedure according to the component type;

[0027] Through the detection procedure, it is determined whether the gas circuit assembly of the sphygmomanometer is airtight;

[0028] Assemble the sphygmomanometer gas circuit components that meet the airtightness requirements to obtain a finished sphygmomanometer.

[0029] Optionally, in the production method of the sphygmomanometer, before judging whether the sphygmomanometer gas circuit assembly is airtight through the detection procedure, the method further comprises:

[0030] According to the test procedure, determine the participating gas valves;

[0031] Performing abnormality detection on the participating gas valves to determine whether there is an abnormal gas valve;

[0032] Accordingly, judging whether the sphygmomanometer gas circuit assembly is airtight through the detection procedure includes:

[0033] When the abnormal air valve does not exist, the detection procedure is used to determine whether the sphygmomanometer air circuit assembly is airtight.

[0034] Optionally, in the production method of the sphygmomanometer, the electrical signal acquisition component includes a power supply, a sampling resistor and a signal processing component; the sphygmomanometer gas circuit component is connected in series with the sampling resistor;

[0035] The receiving component characteristic electrical signal from the electrical signal acquisition component corresponding to the electrical access port comprises:

[0036] Acquire the voltage division signal of the sampling resistor from the signal processing component;

[0037] Determine a current signal flowing through the sampling resistor according to the voltage division signal and pre-stored resistance information of the sampling resistor;

[0038] Correspondingly, determining the component type of the corresponding blood pressure meter gas circuit component according to the component characteristic electrical signal includes:

[0039] Determine the relationship between the current signal and a preset first current value range and a second current value range, where any value within the first current value range is greater than any value within the second current value range;

[0040] When the current signal is within the first current value range, the corresponding sphygmomanometer air circuit component is determined to be an air pump; when the current signal is within the second current value range, the corresponding sphygmomanometer air circuit component is determined to be an air valve.

[0041] Optionally, in the production method of the sphygmomanometer, after determining the relationship between the current signal and the preset first current value range and second current value range, the method further includes:

[0042] When the current signal is not within the first current value range and the second current value range, determining whether the current signal is zero;

[0043] When the current signal is zero, supplying gas to the detection gas port for a first preset time, and then obtaining the gas pressure value at the detection gas port;

[0044] When the air pressure value is higher than the ambient atmospheric pressure, it is determined that the corresponding sphygmomanometer air circuit component is a cuff.

[0045] Optionally, in the production method of the sphygmomanometer, after determining whether the current signal is zero, the method further comprises:

[0046] When the current signal is not zero, a fault alarm is sent.

[0047] Optionally, in the production method of the sphygmomanometer, judging whether the sphygmomanometer air circuit assembly is airtight through the detection procedure comprises:

[0048] Determining whether the inflation time of the detection procedure exceeds a preset tolerance threshold;

[0049] When the inflation time of the detection procedure exceeds a preset tolerance threshold, it is determined that the corresponding sphygmomanometer air circuit component is unqualified for air tightness.

[0050] The airtight detection device provided by the present invention includes a detection air port, an electrical access port, an electrical signal acquisition component and a processor; the detection air port is used to connect the air path interface of the component to be tested, and the electrical access port is used to connect the circuit interface of the component to be tested; the electrical signal acquisition component forms a loop with the component to be tested through the electrical access port, and collects the component characteristic electrical signal in the loop; the processor is used to determine the component type of the component to be tested according to the component characteristic electrical signal, and execute the corresponding detection program according to the component type. Since different components have different working principles and structures, the present invention automatically identifies the component type of the component to be tested by collecting the component characteristic electrical signal in the loop, and automatically selects the corresponding detection program to perform airtight detection, so that when different types of components to be tested are replaced, the user does not need to manually set the type of the component to be tested and the call of the corresponding airtight detection program, and can automatically perform detection and identify abnormal components, saving time, simple operation steps, and high detection efficiency. The present invention also provides a production method of a sphygmomanometer with the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A schematic structural diagram of a specific implementation of the airtightness detection device provided by the present invention;

[0053] Figure 2 A schematic diagram of the circuit structure of an electrical signal acquisition component and a component to be tested in a specific embodiment of the airtightness detection device provided by the present invention;

[0054] Figure 3 A schematic structural diagram of another specific implementation of the airtightness detection device provided by the present invention;

[0055] Figure 4 A schematic flow chart of a specific implementation of the method for producing a sphygmomanometer provided by the present invention;

[0056] The figure includes: detection air port 10, connector 21, extension line 22, electrical signal acquisition component 30, power supply 31, sampling resistor 32, signal processing component 33, processor 40, opening and closing air valves K1~K8, branch air pressure detection components P1~P8, branch cylinders A1~A8, cylinder valves K1-1~K8-1, reserved ports PO1~PO8, reserved air valves K1-2~K8-2, charging valve K11, slave access valve K12, host air release valve K13, small air release valve K10, large air release valve K14, sampling valve K9, sampling cylinder A9, air storage pressure detection component P9, air storage device B1, and air source S1. DETAILED DESCRIPTION

[0057] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0058] The core of the present invention is to provide an airtight detection device, a structural schematic diagram of a specific implementation method thereof is shown as follows: Figure 1 As shown, it is called specific implementation mode 1, including a detection gas port 10, an electrical access port, an electrical signal acquisition component 30 and a processor 40;

[0059] The detection gas port 10 is used to connect to the gas circuit interface of the component to be tested, and the electrical access port is used to connect to the circuit interface of the component to be tested;

[0060] The electrical signal acquisition component 30 forms a loop with the component to be tested through the electrical access port, and collects the component characteristic electrical signal in the loop;

[0061] The processor 40 is used to determine the component type of the component to be tested according to the component characteristic electrical signal, and execute a corresponding detection program according to the component type.

[0062] The "component to be tested" in the present invention can be a component of the gas circuit in a complete product, or it can be a complete gas circuit assembled from multiple gas circuit components, such as a component in a sphygmomanometer or the entire sphygmomanometer, and can be adjusted accordingly based on actual conditions.

[0063] As a specific implementation, the electrical signal acquisition component 30 includes a power supply 31, a sampling resistor 32 and a signal processing component 33;

[0064] The component to be tested is connected in series with the sampling resistor 32;

[0065] The component characteristic electrical signal is an electrical signal obtained by the signal processing component 33 from the sampling resistor 32 .

[0066] Please refer to Figure 2 , Figure 2 That is, it is a schematic diagram of a loop composed of the electrical signal acquisition component 30 and the component to be tested. The component to be tested in the figure is connected in series with the sampling resistor 32 , and the signal processing component 33 obtains the voltage division signal of the sampling resistor 32 .

[0067] Since different components under test have different circuit structures, their equivalent resistances are also different. In this specific embodiment, the different equivalent resistances of different components are utilized to connect the component under test to the loop, and then the equivalent resistance of the component under test can be calculated by measuring the current in the loop or the voltage signal of the sampling resistor 32, thereby determining the type of the component under test. Of course, in actual use, the correspondence between component types corresponding to different current signals or voltage signals can be pre-stored in the processor 40 to avoid measuring the equivalent resistance of the component under test in actual use.

[0068] As a preferred embodiment, the electrical access port includes a connector 21 and an extension line 22;

[0069] The connector 21 is in contact with and connected to the circuit interface of the component to be tested, and is connected to the device body of the airtightness detection device through the extension line 22 .

[0070] Please refer to Figure 1Since different components to be tested have different shapes, after their gas circuit interfaces are connected to the detection gas port 10, the circuit interface positions of the components to be tested may not be the same. In this specific implementation, the electrical access port is limited to a connector 21 connected by the extension line 22, which can be freely connected to the circuit interface to a certain extent, which is equivalent to adding active redundancy to the electrical access port, facilitating the adaptation of more components to be tested with different shapes, and greatly improving the versatility of the device. Furthermore, the extension line 22 is an elastic line, such as a spiral elastic line, etc., which is not limited in the present invention.

[0071] It should be noted that the airtightness test (detection) in the present invention does not only refer to the airtightness test, but also includes other tests that require airtightness, such as the accuracy test of the air valve and the exhaust speed test, which will not be repeated here.

[0072] As a specific implementation, the airtight detection device includes a detection host and a detection slave;

[0073] The detection host includes an air supply component and at least one slave access valve K12; the air supply component supplies air to the detection slave through the slave access valve K12;

[0074] The detection slave includes a plurality of detection branches connected in parallel; the detection branch includes an opening and closing air valve, a branch air pressure detection component, a branch cylinder, a cylinder valve and a reserved port;

[0075] The first end of the on-off valve is connected to the slave access valve K12, and the second end of the on-off valve is connected to the reserved port and the cylinder valve respectively, and is connected to the branch cylinder through the cylinder valve;

[0076] The branch air pressure detection component is used to detect the air pressure between the cylinder valve and the opening and closing air valve;

[0077] The reserved port includes the detection gas port 10 , the electrical access port and the electrical signal acquisition component 30 .

[0078] It is not difficult to see that in this preferred embodiment, the detection host supplies air to an indefinite number of detection slaves (the indefinite number refers to one or more), and a single detection slave includes multiple detection branches, each detection branch corresponds to a detection air port 10, an electrical access port and an electrical signal acquisition component 30, so that the characteristic electrical signal of the component in each detection branch can be obtained, thereby determining the component type of the component to be tested corresponding to each detection branch, realizing rapid batch airtightness testing of different components to be tested, and further improving the detection efficiency.

[0079] Please see Figure 3 , Figure 3This is a structural diagram of this specific implementation method. It should be noted that the parallel connection in the present invention refers to branches separated from the same source. For example, if the detection branches in a detection slave machine are connected to the same slave machine access valve K12 through corresponding opening and closing air valves, then these detection branches are considered to be connected in parallel, and the subsequent connection structures of different detection branches may be different.

[0080] The airtightness detection device can be regarded as a device that takes achieving airtightness as a prerequisite or checks the airtightness of the component to be tested. Figure 3 The cylinders in the figure are marked with corresponding capacities (such as A1 to A8 are 500 ml, A9 is 75 ml). Of course, the capacities marked in the figure are only a specific implementation method and can be changed according to different needs in actual use.

[0081] Figure 3 Only the structural diagram of the detection host and one of the detection slaves is shown, and only a part of the detection branch is shown in the detection slave. The remaining detection branches have the same structure as the displayed detection branches, so they are omitted with ellipsis. Take one of the detection branches as an example, including the opening and closing valve (K1~K8 in the figure), branch air pressure detection components (P1~P8 in the figure), branch cylinders (A1~A8 in the figure), cylinder valves (K1-1~K8-1 in the figure) and reserved ports (PO1~PO8), Figure 3 There are 8 detection branches in the specific implementation shown in the figure, but only the first, second and eighth branches are drawn. Therefore, the corresponding opening and closing valves or branch cylinders are only shown in the figure as K1, K2, K8 or A1, A2, A8. Of course, the detection slave and the detection host have corresponding controllers to control the valves, sensors and other gas circuit components therein. The controller of the detection host is referred to as the host controller, and the controller of the detection slave is referred to as the slave controller.

[0082] As a specific implementation, the first end of each branch air pressure detection component is connected to the second end of the corresponding opening and closing air valve, and the second end of the air pressure detection component is further connected to the reserved air valve (such as Figure 3 As shown), the control end is connected to the corresponding slave controller to collect the air pressure value in the air path; the branch air pressure detection component can be a barometer or an air pressure sensor, etc.

[0083] Preferably, the detection host includes a plurality of the slave access valves K12, that is, the detection host can be connected to a plurality of the detection slaves at the same time, further improving the detection efficiency. When it is not necessary to test all channels for parameters such as air tightness, for example, all channels controlled by one or several slave controllers do not participate in the detection of parameters such as air tightness, the slave access valves K12 corresponding to these channels can be closed to prevent the waste of resources caused by the flow of gas; and it can also prevent a large amount of gas from being wasted when there is a leak at the rear end of one or several detection slaves that do not participate in the detection of parameters such as air tightness.

[0084] As a specific implementation, the detection branch also includes a working indicator light. The working indicator light is used to indicate the working state of the detection branch. For example, if it is always on, it means that the branch is normal and can work normally; if it flashes quickly, it means that it is working; if it flashes at intervals slowly, it means that the branch is faulty. Of course, it can also be indicated in other ways, such as using different colors to indicate different working states of the detection branch, so as to improve the work efficiency of the staff.

[0085] In addition, the detection slave also includes a sampling inspection branch;

[0086] The sampling inspection branch is connected in parallel with the detection branch; the sampling inspection branch includes a sampling inspection valve K9 and a sampling inspection cylinder A9;

[0087] The first end of the sampling inspection valve K9 is connected to the corresponding slave access valve K12, and the second end of the sampling inspection valve K9 is connected to the sampling inspection cylinder A9.

[0088] The addition of the sampling branch enables the airtight detection device provided by the present invention to have more functional tests related to airtightness, such as valve control accuracy test, air pump restart voltage test, etc., and realizes the sampling inspection of any branch under the capacity of the sampling cylinder A9, thereby broadening the scope of application of the airtight detection device.

[0089] Furthermore, the detection slave includes a plurality of sampling inspection branches; different sampling inspection branches correspond to different capacities of the sampling inspection cylinder A9, which further increases the selection of the capacity of the sampling inspection cylinder A9, thereby increasing the types of sampling inspections that can be performed, and further improving the versatility of the airtightness detection device.

[0090] As a specific implementation, the gas supply assembly includes a gas source S1, a gas charging valve K11 and a gas storage device B1;

[0091] The output end of the gas source S1 is connected to the gas inlet end of the gas storage device B1 through the gas charging valve K11;

[0092] The gas outlet of the gas storage device B1 is connected to the slave access valve K12. In this specific embodiment, the gas supply component is divided into the gas source S1 and the gas storage device B1. Before supplying gas to the detection slave, the gas source S1 first fills the gas into the gas storage device B1, so that the gas supply power to the detection slave is no longer limited by the power of the gas source S1. In other words, the gas source S1 with lower power can be used to inflate the gas storage device B1 in advance. When in use, the power of the output gas of the gas storage device B1 to the detection slave can be much greater than that of the gas source S1, which is equivalent to reducing the requirements for the gas source S1 and saving costs. In addition, the temporary storage of gas from the gas storage device B1 is much more stable than direct gas supply from the gas source S1 (such as an air compressor), avoiding the interference of power fluctuations and improving the accuracy of detection.

[0093] In addition, the detection host also includes a host air release valve K13;

[0094] The main engine air release valve K13 is connected to the air outlet end of the air storage device B1 and is connected in parallel with the slave engine access valve K12.

[0095] The input end of the host air release valve K13 is connected between the gas storage device B1 and the slave access valve K12, and the control end is connected to the host controller, and is used to discharge the gas in the gas storage device B1 into the atmosphere when it is opened.

[0096] In this way, in actual use, for example, if the air pressure in the air storage device B1 is high due to over-inflation, that is, the air pressure is higher than the qualified range, the main engine air release valve K13 can be opened to make the air pressure in the air storage device B1 within the qualified range, and then closed.

[0097] Meanwhile, when the detection host is not in use temporarily, the host air release valve K13 can be opened to discharge the gas in the gas storage device B1, thereby increasing the service life of the gas storage device B1.

[0098] As a preferred embodiment, the detection host further includes a gas storage pressure detection component P9;

[0099] The gas storage pressure detection component P9 is arranged between the inflation valve K11 and the gas storage device B1.

[0100] The input end of the gas storage pressure detection component P9 is connected between the second end of the inflation valve K11 (the first end is connected to the gas source S1) and the gas storage device B1, and the output end is connected to the host controller, for collecting the air pressure value between the inflation valve K11 and the gas storage device B1; it can be implemented that the gas storage pressure detection component P9 can be a pressure sensor. In this way, the air pressure in the gas storage device B1 can be monitored to meet actual needs. And the gas storage pressure detection component P9 is set between the inflation valve K11 and the gas storage device B1, avoiding the trouble of setting a sensor in the gas storage device B1 and reducing the difficulty of assembly.

[0101] As a specific implementation, the detection slave includes a slave air release valve;

[0102] The slave air release valve is connected in parallel with the detection branch.

[0103] Furthermore, the detection slave includes a plurality of slave air release valves connected in parallel and having different precisions. Figure 3 As shown, Figure 3 The air valve with higher precision is the small air release valve K10, and the air valve with lower precision is the large air release valve K14. The air release speed of the small air release valve K10 is lower than that of the large air release valve K14. In this way, the small air release valve K10 can be used for air release when the air release precision requirement is high. The large air release valve K14 can be used for air release when the air release speed or air release volume is large, further improving the versatility of the device.

[0104] Furthermore, the detection branch also includes a reserved air valve ( Figure 3 Indicated by K1-2~K8-2);

[0105] The on-off air valve is connected to the reserved port through the reserved air valve.

[0106] After the reserved air valve is set, in the preceding step of the detection, that is, in the step that does not require the participation of the component to be tested, the reserved air valve can be closed to avoid the corresponding cylinder from being unable to be filled with air due to air leakage of the component to be tested itself, thereby improving the operating stability and detection accuracy of the device.

[0107] The detection slave machine in the present invention includes multiple detection branches. If a certain detection branch does not perform air tightness and other parameter detection on the product to be tested, or is determined to be abnormal and cannot work, the opening and closing valve corresponding to the detection branch can be closed specifically without affecting the air tightness and other parameter detection of other detection branches of the same detection slave machine corresponding to the detection branch, thereby improving the detection efficiency.

[0108] One detection host can be connected to multiple detection slaves. When an abnormality occurs in one detection slave, it does not affect the detection of air tightness and other parameters of the product to be tested by the detection branches corresponding to other detection slaves. Users can check the abnormality separately, which improves the detection efficiency and ensures the detection accuracy. Multiple detection slaves are used in conjunction with multiple detection branches on a single detection slave, and the solution is highly flexible.

[0109] With this solution, there is no need to adjust the circuit or gas circuit. Just click on the screen for the parameters to be tested, and the program will automatically execute and perform intelligent testing. Moreover, after pressing the start button, the required items can be automatically tested, which is more convenient.

[0110] In this specific embodiment, the processor 40 for determining the component type of the component to be tested based on the component characteristic electrical signal and executing the corresponding detection program based on the component type can be a slave controller of the detection slave, or can send the component characteristic electrical signal to the detection host, and the host controller of the detection host determines the component type of the component to be tested. The present invention is not limited here.

[0111] As a specific implementation method that can be implemented, after it is determined that the user clicks the smart measurement button on the interactive main interface of the detection host, it is determined that the operation instruction of the smart measurement is received.

[0112] Specifically, after receiving the intelligent measurement operation instruction, the host controller sends the corresponding start measurement instruction to the slave controller, and the slave controller receives the start measurement instruction. More specifically, the user clicks the intelligent measurement button on the interactive main interface controlled by the host controller to enter the intelligent measurement mode interface, and the host controller configures the slave controller to the intelligent measurement mode through the communication protocol. After connecting the component to be tested to the test interface (including the detection gas port 10 and the electrical access port), press the green start measurement button connected to the host board, and the host determines that the start measurement operation instruction has been received.

[0113] Among them, one host controller controls multiple slave controllers, and each slave controller controls multiple channels (that is, the detection branches). In one embodiment, the types of components to be tested connected to all slave controllers are consistent each time the test is performed, so that it is convenient to view them on the host interaction interface controlled by the host controller. In another embodiment, each time the host measures, the test interface controlled by the same slave controller is connected to the same component to be tested, and the test interfaces controlled by different slave controllers can be connected to different components to be tested. In this way, multiple components to be tested can be tested at the same time, that is, multiple parameters of the sphygmomanometer can be tested at the same time, which improves the efficiency of testing the parameters of the components of the sphygmomanometer.

[0114] The following briefly describes a specific implementation process of the cooperation between a detection host (hereinafter referred to as the host) and a detection slave (hereinafter referred to as the slave), including:

[0115] First, turn on the power of the host and slave 31. If the status indicator of the slave is yellow, it means that the host and slave are not connected. If the status indicator of the slave is red, it means that the gas valve of a channel is faulty. If the status indicator of the slave is green, it means that the above two situations do not occur and all channels of the slave can work normally. During the working process, as long as the status of the slave changes, the indicator light color will be updated.

[0116] As a specific implementation, the gas storage device B1 is a gas storage tank, and the gas source S1 is a compressor.

[0117] At this time, if the air pressure value in the air storage device B1 is lower than the minimum air pressure value of the air storage device B1 preset by the host, the host opens the air storage device B1 charging valve K11, closes the host air release valve K13 and the slave access valve K12, and starts the compressor to inflate the air storage device B1. When the air pressure in the air storage device B1 is within the range preset by the host, the host closes the compressor and the air storage device B1 charging valve K11. If the air pressure value is greater than the maximum air pressure value of the air storage device B1 preset by the host, the host closes the compressor and the air storage device B1 charging valve K11, opens the host air release valve K13 to deflate the air storage device B1, until the air pressure value in the air storage device B1 is within the range preset by the host (the range preset by the host mainly ensures that the air pressure value in the air storage device B1 does not exceed the maximum range that the air circuit can withstand, and also ensures that there is enough air pressure in the air storage device B1 so that when the air storage device B1 is inflated into the air circuit, there is a faster inflation speed). During operation, as long as the air pressure value in the air storage device B1 is not within the preset range of the host, the above process will be executed.

[0118] The host interactive main interface includes a system setting button, an intelligent measurement button, a manual measurement button, and a measurement result display interface.

[0119] Click the system settings button on the main interface of the host interaction to enter the system settings interface. There are 5 buttons on the interface. After clicking the host settings, you can set the maximum and minimum values ​​of the preset range of the air pressure of the air storage device B1, as well as the system time. After clicking the slave settings, you can set the test items to be tested by the air valve to be tested, the air pump to be tested, and the cuff to be tested, as well as the specific parameters of all test items. After clicking calibration, the air pressure sensor (that is, the air pressure detection component) of the host or slave can be calibrated. When calibrating a certain channel, a multi-parameter simulator is required to generate a fixed and stable preset air pressure for this channel; the preset air pressure and atmospheric pressure are used for this channel to calibrate the linearity of the air pressure detection component of the channel, that is, the air pressure sensor. In this way, after clicking self-test, you can detect whether the air pressure sensor of the system can work normally. After clicking system, you can view the information of the currently connected slave on the interactive interface of the host. After the system is set successfully, the changed setting items will be saved in the non-volatile memory of the slave so that you don't have to set it again the next time you start it.

[0120] Click the smart measurement button on the host interaction main interface to enter the smart measurement mode interface. At this time, the host configures the slave to smart measurement mode through the communication protocol. After connecting the components to be tested (air valve, air pump, cuff, only one type of device can be connected at the same time, and mixed connection is not allowed) to the reserved port, press the green start measurement button connected to the main board. At this time, the slave controller configures the power supply voltage of the components to be tested in all channels to 3.5v (the test item stipulates the use of 3.5V voltage), and turns on the power supply of all channels for 31,1s (because it takes a certain amount of time for the air pump current value to rise, the delay time cannot be too short, otherwise there may be misjudgment when judging the device. When the current of the component to be tested reaches stability, its value will remain stable. Too long a delay time will cause the system efficiency to be too slow. After testing and evaluation, 1s is selected) and then the current of all channels is detected (because the working current of the components to be tested is different, they can be distinguished by detecting the current). If the current of a certain channel is larger, it is considered that the component to be tested connected to this channel is an air pump. If the current of a certain channel is smaller, it is considered that the component to be tested connected to this channel is an air valve. If there is no current, it is considered that the component to be tested connected to this channel is unknown. If there is an unknown channel, when all channel power supplies 31 are turned on, open the opening and closing air valve of the unknown channel, and close the cylinder valve of the unknown channel. After 3s (at this time, the air flow flows out of the reserved air valve through the opening and closing air valve. If the connected component to be tested is a cuff, the air pressure in the cuff will increase. If this time is too short, the air pressure in the cuff will not be inflated too high, and misjudgment may occur. If this time is too long, it will cause the system efficiency to be too slow. After testing and evaluation, 3s was selected) to detect the air path pressure of the unknown channel. If the value is approximately the atmospheric pressure, it is considered that the unknown channel is not connected to the component to be tested, otherwise it is considered that the unknown channel is connected to the cuff. After the detection is completed, the opening and closing air valve of the unknown channel is closed.

[0121] Click the manual measurement button on the host interactive main interface to enter the manual measurement mode interface. At this time, the host configures the slave to manual measurement mode through the communication protocol. The manual measurement mode requires setting the device to be tested and the test items. After the settings are completed, you need to click the start test button. At this time, the host controls the slave to start measuring the selected test items.

[0122] After intelligent identification is completed or the button is pressed in manual measurement mode, the test starts. If all the connected components to be tested are gas valves, there are three test items:

[0123] ① Air valve control accuracy test (spot check item). This test item mainly detects whether the air discharge volume meets the conditions after the air valve is opened for 20ms.

[0124] ② Valve air tightness test: This test mainly detects whether there is air leakage when the valve is closed.

[0125] ③Valve exhaust speed test: This test mainly detects whether the valve can exhaust air normally.

[0126] If all connected components to be tested are air pumps, there can be four test items:

[0127] ① Air pump restart voltage test (spot check item). This test item mainly checks whether the air pump can inflate the branch cylinder with air pressure when the voltage is low.

[0128] ② Air pump non-full speed inflation time test (spot check item). This test item mainly detects whether the inflation speed of the air pump is normal under low voltage.

[0129] ③Air pump air tightness test: This test mainly detects whether the air pump is leaking.

[0130] ④Air pump inflation time test: This test mainly detects whether the inflation speed is normal when the air pump is working normally.

[0131] If all connected components to be tested are cuffs, there can be one test item:

[0132] ① Cuff air tightness test. This test mainly detects whether the cuff is leaking.

[0133] This device can work alone with the slave. The human-computer interaction uses the small LCD screen reserved by the slave (due to the limited number of controller pins, the display interface cannot use the RGB parallel interface with fast transmission speed, and can only use the serial bus) and the key interface. The mode of the slave and the information of the test items are set by the keys. The LCD size and resolution of the slave are relatively low, and there is no touch. When the slave works alone, the compressor control signal line and the related valve control line of the gas storage device B1 need to be connected to the reserved interface of the slave.

[0134] The airtight detection device provided by the present invention includes a detection air port 10, an electrical access port, an electrical signal acquisition component 30 and a processor 40; the detection air port 10 is used to connect the air path interface of the component to be tested, and the electrical access port is used to connect the circuit interface of the component to be tested; the electrical signal acquisition component 30 forms a loop with the component to be tested through the electrical access port, and collects the component characteristic electrical signal in the loop; the processor 40 is used to determine the component type of the component to be tested according to the component characteristic electrical signal, and execute the corresponding detection program according to the component type. Since different components have different working principles and structures, the present invention automatically identifies the component type of the component to be tested through the component characteristic electrical signal in the loop after the component to be tested is connected to the loop, and automatically selects the corresponding detection program to perform airtight detection, so that when different types of components to be tested are replaced, the user does not need to manually set the type of the component to be tested and the call of the corresponding airtight detection program, and can automatically perform detection and identify abnormal components, saving time, simple operation steps, and high detection efficiency.

[0135] The present invention also provides a method for producing a sphygmomanometer, a flow chart of a specific implementation method thereof is shown as follows: Figure 4 As shown, it is called specific implementation method 2, including:

[0136] S101: Obtain a sphygmomanometer gas circuit assembly.

[0137] The sphygmomanometer air circuit assembly is a component of the sphygmomanometer that requires air intake and exhaust. The source of the sphygmomanometer air circuit assembly is not limited, and it can be produced in the previous step or a purchased finished product component.

[0138] The sphygmomanometer production method provided in this specific embodiment can be understood in conjunction with the airtightness detection device in the previous text. Of course, since this specific embodiment is a sphygmomanometer production method, the component to be tested in the previous text is the sphygmomanometer air circuit component in this specific embodiment, and the same is true below and will not be repeated later.

[0139] S102: Connect the gas circuit interface of the gas circuit assembly of the sphygmomanometer to the detection gas port 10, and connect the circuit interface of the gas circuit assembly of the sphygmomanometer to the corresponding electrical access port.

[0140] The detection gas port 10 and the electrical access port can also refer to the airtight detection device described above, which will not be repeated here.

[0141] S103: receiving a component characteristic electrical signal from the electrical signal acquisition component 30 corresponding to the electrical access port; the electrical signal acquisition component 30 forms a loop with the sphygmomanometer gas circuit component through the electrical access port.

[0142] As a specific implementation, the electrical signal acquisition component 30 includes a power supply 31, a sampling resistor 32 and a signal processing component 33; the sphygmomanometer gas circuit component is connected in series with the sampling resistor 32;

[0143] The receiving of component characteristic electrical signals from the electrical signal acquisition component 30 corresponding to the electrical access port comprises:

[0144] A1: Obtain the voltage division signal of the sampling resistor 32 from the signal processing component 33 .

[0145] A2: Determine the current signal flowing through the sampling resistor 32 according to the voltage division signal and the pre-stored resistance information of the sampling resistor 32

[0146] The power supply 31, the sampling resistor 32 and the sphygmomanometer gas circuit component form a closed loop, and the signal processing component 33 is connected in parallel with the sampling resistor 32. Since the signal processing component 33 measures the voltage division signal of the sampling resistor 32 in this specific embodiment, its two acquisition ends can be connected to the two ends of the sampling resistor 32 respectively.

[0147] Correspondingly, determining the component type of the corresponding blood pressure meter gas circuit component according to the component characteristic electrical signal includes:

[0148] A3: Determine the relationship between the current signal and a preset first current value range and a second current value range, and any value within the first current value range is greater than any value within the second current value range.

[0149] That is, there are two current value ranges, the first current value range and the second current value range do not overlap, and the first current value range is larger than the second current value range. In this step, the relationship between the current signal and the two current value ranges on the number axis is determined to determine whether it falls into one of the two ranges.

[0150] A4: When the current signal is within the first current value range, it is determined that the corresponding blood pressure meter air circuit component is an air pump; when the current signal is within the second current value range, it is determined that the corresponding blood pressure meter air circuit component is an air valve.

[0151] Since the equivalent resistance of the air pump is usually smaller than that of the air valve, when the current signal falls within the larger first current value range, the blood pressure meter air circuit assembly is considered to be an air pump, and when it falls within the smaller second current value range, the blood pressure meter air circuit assembly is considered to be an air valve.

[0152] Preferably, after determining the relationship between the current signal and the preset first current value range and the second current value range, the method further includes:

[0153] B1: When the current signal is not within the first current value range and the second current value range, determine whether the current signal is zero.

[0154] In addition to the above-mentioned air valve and air pump, the sphygmomanometer also has a component without a circuit structure, namely the cuff, in which case the circuit is open.

[0155] B2: When the current signal is zero, supply gas to the detection gas port 10 for a first preset time, and then obtain the gas pressure value at the detection gas port 10.

[0156] Taking the specific implementation method of the detection host and the detection slave in the previous article as an example, the slave access valve K12 of the detection host can be opened, and the opening and closing valve of the corresponding detection branch can be opened, and the cylinder valve can be closed to realize the air supply to the detection air port 10 (that is, the corresponding reserved port). After the first preset time, the air pressure value of the corresponding branch air pressure detection component is checked.

[0157] B3: When the air pressure value is higher than the ambient atmospheric pressure, it is determined that the corresponding sphygmomanometer air circuit component is a cuff.

[0158] If the detection gas port 10 is connected to the cuff, then after the first preset time of gas supply, the pressure inside the cuff should be higher than the corresponding ambient atmospheric pressure. However, if the air pressure at the detection gas port 10 is still equivalent to the ambient atmospheric pressure after the gas supply is completed, it means that all the gas in the gas supply process has dissipated, and it is judged that the detection gas port 10 is not connected to any component at this time.

[0159] It should be noted that although the current signal is zero when the cuff is installed, the fact that the current signal is zero does not necessarily mean that the cuff is installed. This specific implementation method uses simple means to distinguish whether the detection air port 10 is connected to the cuff, further broadens the scope of application of the blood pressure monitor production method, and at the same time improves the degree of automation of the process, thereby improving production efficiency.

[0160] Furthermore, after determining whether the current signal is zero, the method further includes:

[0161] When the current signal is not zero, a fault alarm is sent.

[0162] The first current value range and the second current value range themselves are ranges filled with a certain amount of redundancy based on the possible types of components and corresponding equivalent resistances. That is, when the current signal is not within the above two ranges but is not zero, it is highly likely that a system circuit failure has occurred and a fault alarm should be sent in a timely manner. The fault alarm may be an audible or visual alarm, or an alarm message sent to a control terminal, etc., and the present invention is not limited thereto.

[0163] S104: Determine the component type of the corresponding blood pressure meter air circuit component according to the component characteristic electrical signal.

[0164] The component types include air valves, air pumps, cuffs, etc., which are not listed here one by one.

[0165] S105: Determine a corresponding detection procedure according to the component type.

[0166] Different types of components have different testing procedures. For example, a gas valve needs to undergo at least one of a control accuracy test and an air tightness test. The specific testing procedure can be selected or combined according to the actual situation.

[0167] S106: Determine whether the air circuit assembly of the sphygmomanometer is airtight through the detection procedure.

[0168] As a preferred implementation, before this step, the method further includes:

[0169] C1: According to the test procedure, determine the involved gas valves.

[0170] The participating gas valve is the gas valve that needs to be acted upon to execute the detection procedure.

[0171] C2: Perform abnormality detection on the participating gas valves to determine whether there is an abnormal gas valve.

[0172] The abnormality detection refers to detecting whether the participating gas valve can work normally. If it cannot work normally, it is regarded as the abnormal gas valve.

[0173] Accordingly, judging whether the sphygmomanometer gas circuit assembly is airtight through the detection procedure includes:

[0174] C3: When the abnormal air valve does not exist, the detection procedure is used to determine whether the air circuit assembly of the sphygmomanometer is airtight.

[0175] In other words, in this preferred embodiment, before executing the detection procedure, it is necessary to first ensure that all the participating gas valves required by the detection procedure can work normally, so as to avoid the error of the detection result caused by the abnormal detection path, and greatly improve the detection accuracy. Faulty gas valves can also be found in time so that the staff can repair them in time and improve production efficiency.

[0176] In addition, judging whether the gas circuit assembly of the sphygmomanometer is airtight through the detection procedure includes:

[0177] D1: Determine whether the inflation time of the detection procedure exceeds a preset tolerance threshold.

[0178] Since the detection procedures are all procedures related to the air tightness of the components, the detection procedures basically include the step of allowing gas to flow through the gas path of the sphygmomanometer gas path component, and the time of this inflation step is the inflation time.

[0179] The tolerance threshold is a preset time period, that is, when all components are working normally and the sphygmomanometer air circuit assembly is normal, within the tolerance time, the pressure value in the air circuit should be able to reach the standard required for performing the test.

[0180] D2: When the inflation time of the detection procedure exceeds a preset tolerance threshold, it is determined that the corresponding sphygmomanometer air circuit component is not airtight.

[0181] The inflation step will continuously inflate the sphygmomanometer air circuit assembly before reaching the preset pressure value. If the restart time exceeds the tolerance threshold, it means that there is a leak in the sphygmomanometer air circuit assembly and the air pressure value cannot meet the standard. At this time, there is no need to perform subsequent detection steps and it can be directly determined that the sphygmomanometer air circuit assembly does not meet the standard.

[0182] S107: Assemble the sphygmomanometer gas circuit components that meet the airtightness requirements to obtain a finished sphygmomanometer.

[0183] The sphygmomanometer production method provided by the present invention tests each gas path component in the sphygmomanometer separately, rather than first assembling the sphygmomanometer and then testing the entire machine. This allows for more intuitive and direct identification of faulty components. The prior art method of assembling first and then testing requires first identifying the faulty sphygmomanometer and then disassembling the faulty sphygmomanometer to further identify which component is faulty. Obviously, the technical solution of the present invention improves the yield rate while further improving production efficiency.

[0184] The production method of the sphygmomanometer provided by the present invention comprises obtaining a sphygmomanometer air circuit assembly; connecting the air circuit interface of the sphygmomanometer air circuit assembly to a detection air port 10, and connecting the circuit interface of the sphygmomanometer air circuit assembly to a corresponding electrical access port; receiving a component characteristic electrical signal from an electrical signal acquisition assembly 30 corresponding to the electrical access port; the electrical signal acquisition assembly 30 forms a loop with the sphygmomanometer air circuit assembly through the electrical access port; determining the component type of the corresponding sphygmomanometer air circuit assembly according to the component characteristic electrical signal; determining the corresponding detection procedure according to the component type; judging whether the sphygmomanometer air circuit assembly is airtight or not through the detection procedure; and assembling the sphygmomanometer air circuit assembly that is airtight to obtain a finished sphygmomanometer. Since different components have different working principles and structures, the present invention automatically identifies the component type of the blood pressure meter air circuit component through the component characteristic electrical signal in the circuit after the blood pressure meter air circuit component is connected to the circuit, and automatically selects the corresponding detection program to perform airtightness detection. This achieves that when different types of blood pressure meter air circuit components are replaced, there is no need for the user to manually set the type of blood pressure meter air circuit component and the call of the corresponding airtightness detection program, and the detection can be automatically performed and abnormal components can be identified, thus saving time, simplifying the operation steps, and increasing the detection efficiency.

[0185] The following are several specific control flows of the detection procedures, the airtightness detection devices used in them are all the specific implementations of the detection host and the detection slave described in the foregoing text, which can be understood by comparison, including:

[0186] 1. Gas valve control accuracy test

[0187] First, test whether the current channel (that is, the detection branch mentioned above, the same below, no further description) connected to the product to be tested is normal, and exclude situations such as abnormal valves on the channel. Open the sampling valve K9, the large air release valve K14, the small air release valve K10, and the opening and closing valves corresponding to the channel with the smallest channel number, and close its cylinder valve, release the air pressure in this channel and the sampling cylinder A9 to approximately atmospheric pressure, and record the air release time. If the air release time is greater than the maximum air release time set by the slave, it is considered that this channel has a fault and the measurement of this channel is terminated, and then the slave sends the end of the channel test and related measurement data to the host. If the air release time is less than the maximum air release time set by the slave, it is considered that this channel is normal.

[0188] After the deflation is completed, close the large deflation valve K14 and the small deflation valve K10, configure the power supply voltage of the component to be tested in this channel to 6v (specified in the test item), turn on the power supply 31 of this channel, and then turn on the slave access valve K12. At this time, the gas storage device B1 inflates the sampling cylinder A9, and detects the air pressure in the air circuit through the air pressure sensor of the working channel at this time. If the air pressure is detected to be greater than the user's set value, the slave access valve K12 is closed. After a delay, the air pressure in the current channel air circuit is detected again. If the air pressure value is less than the minimum value of the user-set range, continue to open the slave access valve K12 to inflate the air circuit. If the air pressure is detected to be greater than the user's set value, the slave access valve K12 is closed. Repeat this step many times until the air pressure value in the air circuit of this channel meets the range set by the user.

[0189] After the inflation is completed, the delay is 4s (due to the high air pressure in the gas storage device B1, the air hose will be expanded during inflation. After the inflation is completed, the air pipeline will shrink, so the air pressure value will change after the inflation is completed. You must wait for the air pressure to stabilize before collecting the air pressure. If the waiting time is too short, the collected initial air pressure value will be incorrect. Since this test item is a random inspection item, all channels cannot be tested together, so if the waiting time is too long, the measurement efficiency will be greatly reduced. After testing and evaluation, a delay of 4s is selected. After the delay, the air pressure in the air circuit is recorded at this time, and then the air to be tested is closed. The power supply 31 of the valve is used to deflate the air valve to be tested for 20ms (this test item mainly tests whether the air valve can be opened in a very short time to determine whether it can be deflated. If the opening time is too long, the control accuracy cannot be determined. If the opening time is too short, all air valves cannot be deflated. After testing and evaluation, a 20ms delay is selected). Turn on the power supply 31 to stop the air valve to be tested from deflation. After stabilizing for 4s (after testing, the air pressure value has stabilized after a delay of 4s after deflation), record the air pressure value at this time. The air pressure value before deflation minus the air pressure value after deflation is the deflation volume of the air valve to be tested in this channel in 20ms. If the measured deflation volume is less than the qualified threshold, it is considered that the control accuracy test item of this air valve is unqualified. At this time, the slave sends the measurement data and the air valve data to the host, indicating that it is unqualified. If the measured deflation volume is greater than the qualified threshold, it is considered that the control accuracy test item of this air valve is qualified. At this time, the slave sends the measurement data and the air valve data to the host, indicating that it is qualified. At this time, the gas valve control accuracy test of the current channel is completed. If there are channels waiting to be tested, the gas valve control accuracy test will be performed on the next channel in sequence until all channels to be tested are tested.

[0190] 2. Valve air tightness test

[0191] First, test whether all channels connected to the product to be tested are normal, and rule out situations such as abnormal valves on the channels (this step is not necessary). Specifically, close the slave access valve K12, and then open the large bleed valve K14, the small bleed valve K10, and the on-off valves (such as K1-K8) and cylinder valves (such as K1-1 to K8-1) of all channels to be tested, and deflate all channels to be tested. At the same time, time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it is considered that this channel has a fault and the measurement of this channel is terminated. At this time, the slave will record this channel, close the on-off valve and cylinder valve, and then upload the hardware fault of this channel to the host, and will not test this channel in other test items later.

[0192] After all channels to be tested are deflated, close the large deflation valve K14 and the small deflation valve K10, and configure the power supply voltage of all channels to be tested to 3.6v (test item requirements), then turn on the power supply 31 of all channels to be tested, then turn on the slave access valve K12, keep the K1~K8, K1-1~K8-1 valves open, and count the inflation time of each channel to be tested. At this time, the airflow flows out from the air storage device B1, passes through the slave access valve K12, and then passes through the opening and closing valves and cylinder valves of all channels to be tested to inflate the branch cylinders of all channels to be tested.

[0193] After inflating to the qualified range, stabilize for a preset time, for example 1s; obtain the air pressure value collected by the air pressure detection component; if it is within the qualified range, perform a test; if it is not within the qualified range, return to the step of inflating to the qualified range and stabilizing for a preset time until the air pressure value collected by the air pressure detection component is within the qualified range after stabilization, and perform a test. Specifically, it includes: if the air pressure value detected by a channel air pressure sensor (i.e., the branch air pressure detection component, the same below) is greater than the minimum value of the air valve air tightness test inflation qualified range, the opening and closing air valve of the channel is closed, and a delay of 1s is made (used to wait for the air pressure in the air path to stabilize. This process will be executed multiple times during the test. If the delay time is too long, it will lead to low inflation efficiency. If the delay time is too short, it will lead to the air pressure value being lower than the inflation qualified range after the inflation is completed. 1s is selected after test evaluation), and then the air pressure value of this channel is detected again. If the measured air pressure value is less than the minimum value of the air valve air tightness test inflation qualified range, the inflation step is repeated, that is, the opening and closing air valve of the channel is opened again to continue inflation. When the air pressure value of the channel is greater than the minimum value of the air valve air tightness test inflation qualified range, the opening and closing air valve of the channel is closed, and the air pressure value is detected again after a delay of 1s until the air pressure value of the channel is within the inflation qualified range of the air valve air tightness test. It can be seen that the setting of the stabilization time during inflation can prevent the turbulent airflow from causing inaccurate air pressure detection, causing the air pressure value collected by the air pressure detection component to be within the qualified range, but actually not within the qualified range. The setting of the stabilization time makes the actual air pressure detected more accurate and improves the accuracy of subsequent parameter detection.

[0194] If a channel times out during the inflation process, the slave will record this channel, end the measurement, and then upload the failed measurement to the host. Setting the inflation timeout can prevent time wasted due to abnormal inflation, thus saving time.

[0195] After the inflation of the channel is completed, wait for 10s (in order to reduce the impact of unstable air pressure when detecting air tightness, it is necessary to collect the initial air pressure value after a delay. The delay time cannot be too short. If the delay time is too short, the measured air tightness will be inaccurate. If the delay time is too long, it will lead to low measurement efficiency. After test evaluation, delay for 10s) to stabilize the air pressure of the current channel and record the air pressure value of the current channel. Delay for 60s (test item regulations). After the delay, record the air pressure value of this channel. The air pressure value before the delay minus the air pressure value after the delay is the air leakage of the air valve to be tested in this channel within one minute. If the air leakage is less than the air valve air tightness qualified threshold, it is considered that there is no problem with the air tightness of the air valve to be tested in this channel, otherwise it is considered that there is a problem with the air tightness.

[0196] When the test is completed, the host will be actively sent the measurement data and whether the test is passed. After the sending is completed, this channel will wait. If there are other channels to be tested that have not been completed at this time, it will wait until all channels to be tested are completed. After all channels to be tested are measured, the valve air tightness test item is completed.

[0197] 3. Valve exhaust speed test

[0198] The air valve exhaust speed test first tests whether the lock core can be reset immediately after the air valve is powered on for a period of time and then powered off, and then tests the deflation speed of the air valve. (Reset means: the lock core is powered on to lock and block the air path, and the air path is ventilated (deflated) after the power is turned off; if the lock core goes down to deflate immediately after the power is turned off, it is confirmed that the lock core can be reset immediately).

[0199] First, test whether the current channel connected to the product to be tested is normal, and exclude situations such as abnormal valves on the channel. Specifically, close the slave access valve K12, then open the large air release valve K14, the small air release valve K10, and the opening and closing air valves and cylinder valves of all channels to be tested, deflate all channels to be tested, and time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it is considered that this channel has a fault and the measurement of this channel is terminated. At this time, the slave will record this channel, close the opening and closing air valves and cylinder valves, and then upload the hardware fault of this channel to the host, and will not test this channel in other test items later.

[0200] Then inflate the branch cylinders, such as A1. Specifically, it includes: after waiting for all channels to be tested to be deflated, close the large deflation valve K14 and the small deflation valve K10, and configure the power supply voltage of all components to be tested in all channels to be tested to 6v (test item requirements), then turn on the power supply 31 of all channels to be tested, and then turn on the slave access valve K12, and count the inflation time of each channel to be tested. At this time, the air flow flows out from the air storage device B1, passes through the slave access valve K12, and then passes through the opening and closing valves and cylinder valves of all channels to be tested, and inflates the branch cylinders of all channels to be tested. If the air pressure value detected by the air pressure sensor of a certain channel is greater than the minimum value of the qualified inflation range of the air valve air tightness test, the opening and closing air valve of the channel will be closed. After a delay of 1s, the air pressure value of this channel will be detected again. If the measured air pressure value is less than the minimum value of the qualified inflation range of the air valve air tightness test, the inflation steps will be repeated, that is, the opening and closing air valve of the channel will be opened again to continue inflation. When the air pressure value of the channel is greater than the minimum value of the qualified inflation range of the air valve air tightness test, the opening and closing air valve of the channel will be closed. After a delay of 1s, the air pressure value will be detected again until the air pressure value of the channel is within the qualified inflation range of the air valve air tightness test.

[0201] If a channel times out during the inflation process, the slave will record this channel, end the measurement, and then upload the measurement failure to the host.

[0202] Then measure whether the lock core can be reset, specifically including: after the channel is inflated, delay for 30s (specified in the test item), record the air pressure value at this time after the delay, then turn off the power supply 31 of the air valve to be tested in the channel and start timing, and record the air pressure value once after 500ms (because the higher the air pressure, the faster the air is deflated. If this time is too long, it is impossible to judge whether the valve core of the air valve is reset immediately. If this time is too short, there will be a large error and misjudgment may occur. After testing, it is found that the judgment is more reliable when the time is 500ms), and subtract the air pressure value recorded after turning off the power supply 31 from the air pressure value recorded before turning off the power supply 31 to obtain the deflated volume within 500ms of opening the air valve to be tested. If the deflated volume is less than the air valve reset detection threshold, it is considered that the valve core of this air valve is not disconnected immediately after power failure. Otherwise, it is considered that the valve core of this air valve is disconnected immediately after power failure.

[0203] Then determine whether the air pressure value of the gas path is less than the deflation end pressure value. If it is satisfied, it is considered that the deflation of this channel is completed, and the deflation time of the channel is recorded. If it exceeds the maximum waiting time of the air valve deflation time test, it is considered that the deflation of this channel has not been completed normally, and the measurement of this channel is ended. If it does not exceed the maximum waiting time of the air valve deflation time test, it is determined whether the deflation time is within the preset deflation time qualified range; if it is within the deflation time qualified range, the exhaust speed is qualified, otherwise, it is unqualified. After the judgment is completed, all test results are actively uploaded to the host. If there are other channels to be tested that have not been completed at this time, wait until all channels to be tested are measured. After all channels to be tested are measured, the valve exhaust speed test item is completed.

[0204] 4. Air pump restart voltage test

[0205] First, test whether all channels connected to the product to be tested are normal, and exclude situations such as abnormal valves on the channels. Specifically, close the slave access valve K12, and then open the large air release valve K14, the small air release valve K10, and the opening and closing air valves and cylinder valves of all channels to be tested, and deflate all channels to be tested. At the same time, time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it is considered that this channel has a fault and the measurement of this channel is terminated. At this time, the slave will record this channel, close the opening and closing air valves and cylinder valves, and then upload the hardware fault of this channel to the host, and will not test this channel in other test items later.

[0206] After waiting for all channels to be tested to be deflated, the step of inflating the branch cylinder with the air pump to be tested is performed, which specifically includes: closing the large deflation valve K14, the small deflation valve K10, closing K1, and then opening the branch cylinder control valves (such as K1-1 to K8-1) and K1-2 to K8-2) of all channels to be tested, and then configuring the power supply voltage of the components to be tested of all channels to be tested to 3.5v (test item regulations), and then turning on the power supply 31 of all channels to be tested and starting the timing, so that all air pumps to be tested inflate the corresponding branch cylinders. If the air pressure value of a channel is greater than the minimum value of the qualified range of the intermediate value of the restart voltage test air pressure, the power supply 31 of the air pump to be tested of the channel is turned off. If the air pressure value of a channel is greater than the maximum value of the intermediate value qualified range of the restart voltage test air pressure, the large air release valve K14, the small air release valve K10 and the corresponding opening and closing air valve should be opened, and when the air pressure value in this channel is less than the maximum value of the intermediate value qualified range of the air pump restart voltage test air pressure, the corresponding opening and closing air valve should be closed. After a delay of 1s, the air pressure value in the current air circuit is tested again. If the air pressure value of the corresponding channel is not within the qualified range of the intermediate value of the air pump restart voltage test air pressure, the above inflation steps are repeated until the air pressure in the corresponding air circuit meets the conditions, and then the power supply 31 of the air pump to be tested in the corresponding channel is turned off.

[0207] If the inflation time of a certain channel during the inflation process is greater than the maximum inflation time, it is considered that this channel has a fault. At this time, the opening and closing valves, cylinder valves and power supply 31 of the air pump to be tested of the faulty branch are closed, and then test information and error information are sent to the host, and this channel will no longer be tested in subsequent tests.

[0208] After a channel is inflated, there is a delay of 5s (specified in the test item). After the delay, the air pump to be tested is turned on again to inflate the branch cylinder and the inflation time is recorded. If the air pressure value is greater than the final value of the inflation pressure after the air pump restart voltage, the channel test is considered successful, and the slave actively sends the measurement result to the host. If the inflation timeout occurs, it is considered that the channel has a hardware failure, and the slave sends a channel hardware failure message to the host, and does not measure this channel in the subsequent test items.

[0209] 5. Test of air pump non-full speed inflation time

[0210] First, test whether the current channel connected to the product to be tested is normal, and exclude situations such as abnormal valves on the channel. Specifically, open the sampling valve K9, the large air release valve K14, the small air release valve K10, and the opening and closing valves corresponding to the channel with the smallest channel number of the component to be tested, and close its cylinder valve, release the air pressure in this channel and the sampling cylinder A9 to approximately atmospheric pressure, and record the air release time. If the air release time is greater than the maximum air release time set by the slave, it is considered that this channel has a fault and the measurement of this channel is terminated, and then the slave sends the end of the channel test and related measurement data to the host. If the air release time is less than the maximum air release time set by the slave, it is considered that this channel is normal.

[0211] After deflation is completed, close the large deflation valve K14 and the small deflation valve K10, configure the power supply voltage of the component to be tested in this channel to 6v, set the power supply duty cycle to 30% (test item regulations), and turn on the power supply 31 of the air pump to be tested in this channel, turn on K1-2, K1, K9, and close 1-1. At this time, the air pump to be tested in this channel inflates the sample cylinder A9 and starts timing. The air pressure sensor of this channel measures the air pressure in the air circuit in real time. If the air pressure value is greater than the air pressure value at the end of the inflation test of the air pump non-full speed inflation time, it is considered that the inflation is over, and the slave sends measurement information to the host, and closes the corresponding opening and closing valve of this channel and the power supply 31 of the air pump to be tested. If the inflation time exceeds the maximum value of the air pump non-full speed inflation time timeout, it is considered that the inflation of this channel has failed, and the slave sends a measurement failure to the host, and closes the corresponding opening and closing valve of this channel and the power supply 31 of the air pump to be tested.

[0212] 6. Air pump air tightness test

[0213] First, test whether all channels connected to the product to be tested are normal, and exclude situations such as abnormal air valves on the channels that interfere with the detection. Specifically, close the slave access valve K12, and then open the large air release valve K14, the small air release valve K10, and the opening and closing air valves and cylinder valves of all channels to be tested, and deflate all channels to be tested. At the same time, time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it is considered that this channel has a fault and the measurement of this channel is terminated. At this time, the slave will record this channel, close the opening and closing air valves and cylinder valves, and then upload the hardware fault of this channel to the host, and will not test this channel in other subsequent test items.

[0214] After all channels to be tested have been deflated, close the large deflation valve K14 and the small deflation valve K10, and then open the cylinder valves of all channels to be tested. Then configure the power supply voltage of all components to be tested in all channels to be tested to 6v (specified in the test item), then turn on the power supply 31 of all channels to be tested and start timing, so that all air pumps to be tested inflate the corresponding branch cylinders. If the air pressure value of a channel is greater than the minimum value of the qualified range of the air pump air tightness test, turn off the power supply 31 of the air pump to be tested in that channel. If the air pressure value of a channel is greater than the maximum value of the qualified range of the air pump air tightness test, the large deflation valve K14, the small deflation valve K10 and the corresponding opening and closing valves should be opened. When the air pressure value in this channel is less than the maximum value of the qualified range of the air pump air tightness test, close the corresponding opening and closing valves. After a delay of 1s, the air pressure value in the current air circuit is tested again. If the air pressure value of the corresponding channel is not within the qualified range of the air pump air tightness test pressure, the above inflation steps are repeated until the air pressure in the corresponding air circuit meets the conditions, and then the power supply 31 of the air pump to be tested in the corresponding channel is turned off.

[0215] If the inflation time of a certain channel during the inflation process is greater than the maximum inflation time, it is considered that this channel has a fault. At this time, the opening and closing valves, cylinder valves and power supply 31 of the air pump to be tested of the faulty branch are closed, and then test information and error information are sent to the host, and this channel will no longer be tested in subsequent tests.

[0216] After the inflation is completed, first delay for a period of time to allow the air pressure value to completely stabilize, then read the current air pressure value of this channel, and then delay for 60s (test item regulations), read the air pressure value of this channel after the delay, and subtract the air pressure value before the delay from the air pressure value after the delay to get the leakage of this air pump, and then judge the leakage. After the judgment is completed, the slave actively sends the measurement result to the host.

[0217] 7. Air pump inflation time test

[0218] First, test whether all channels connected to the product to be tested are normal, and exclude situations such as abnormal air valves on the channels that interfere with the detection. Specifically, close the slave access valve K12, and then open the large air release valve K14, the small air release valve K10, and the opening and closing air valves and cylinder valves of all channels to be tested, and deflate all channels to be tested. At the same time, time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it means that the channel has a fault. At this time, the slave will record this channel, close the opening and closing air valves and cylinder valves, and then upload the hardware fault of this channel to the host, and will not test this channel in other subsequent test items.

[0219] After all the channels to be tested have been deflated, close the large deflation valve K14 and the small deflation valve K10, then open the cylinder valves of all the channels to be tested, and open K1-2 (K1-2 may not exist and can be directly a conduit). Then configure the power supply voltage of all the components to be tested in all the channels to be tested to 6v (specified in the test item), then turn on the power supply 31 of all the channels to be tested and start timing, so that all the air pumps to be tested inflate the corresponding branch cylinders and start timing the inflation time. If the air pressure value in a certain channel is greater than the inflation end air pressure value, it is considered that the inflation of the channel is over, and the power supply 31 and the cylinder valve of the air pump to be tested in the channel are closed, and the inflation time of the channel is recorded, and then the slave actively uploads data to the host. If the air pressure value of a certain channel exceeds the maximum inflation time and has not reached the inflation end air pressure value, it is considered that the hardware of this channel is faulty, and the slave sends a channel hardware fault to the host, and does not measure this channel in the subsequent test items.

[0220] 8. Cuff air tightness test

[0221] First, close the slave access valve K12, then open the large bleed valve K14, the small bleed valve K10, and the on-off valves and cylinder valves of all channels to be tested, and deflate all channels to be tested. At the same time, time the deflation time of each channel, and then release the air pressure of all channels to be tested to approximately atmospheric pressure. If the deflation of a channel times out, it is considered that this channel has a fault and the measurement of this channel is terminated. At this time, the slave will record this channel, close the on-off valve and cylinder valve, and then upload the hardware fault of this channel to the host, and will not test this channel in other test items later.

[0222] After all channels to be tested are deflated, close the large deflation valve K14 and the small deflation valve K10, and configure the power supply voltage of all channels to be tested to 3.6v (test item requirements), then turn on the power supply 31 of all channels to be tested, and then turn on the slave access valve K12, and count the inflation time of each channel to be tested. At this time, the airflow flows out from the air storage device B1, passes through the slave access valve K12, and then passes through the opening and closing valves and cylinder valves of all channels to be tested, and inflates the branch cylinders of all channels to be tested. If the air pressure value detected by the air pressure sensor of a certain channel is greater than the minimum value of the qualified inflation range of the cuff air tightness test, the on-off air valve of the channel is closed. After a delay of 1s, the air pressure value of this channel is detected again. If the measured air pressure value is less than the minimum value of the qualified inflation range of the cuff air tightness test, the inflation steps are repeated, that is, the on-off air valve of the channel is opened again to continue inflation. When the air pressure value of the channel is greater than the minimum value of the qualified inflation range of the cuff air tightness test, the on-off air valve of the channel is closed. After a delay of 1s, the air pressure value is detected again until the air pressure value of the channel is within the qualified inflation range of the cuff air tightness test.

[0223] If a channel times out during the inflation process, the slave will record this channel, end the measurement, and then upload the measurement failure to the host.

[0224] After the inflation of the channel is completed, wait for 10 seconds to allow the air pressure of the current channel to stabilize, and record the air pressure value of the current channel. Delay for 60 seconds. After the delay, record the air pressure value of this channel. The air pressure value before the delay minus the air pressure value after the delay is the leakage amount of the cuff to be tested in this channel within one minute. If the leakage amount is less than the qualified threshold of the cuff air tightness, it is considered that there is no problem with the air tightness of the cuff to be tested in this channel, otherwise it is considered that there is a problem with the air tightness.

[0225] When the test is completed, the slave actively sends the measurement data and whether the test is passed to the master. After the sending is completed, this channel waits. If there are other channels to be tested that have not been completed at this time, it will wait until all channels to be tested are completed. After all channels to be tested are measured, the cuff air tightness test is completed.

[0226] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0227] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0228] The above is a detailed introduction to the production method of the airtight detection device and the sphygmomanometer provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An airtight detection device, characterized in that: It includes a detection gas port, an electrical access port, an electrical signal acquisition component and a processor; The detection gas port is used to connect to the gas circuit interface of the component to be tested, and the electrical access port is used to connect to the circuit interface of the component to be tested; The electrical signal acquisition component forms a loop with the component to be tested through the electrical access port, and acquires characteristic electrical signals of the component in the loop; The processor is used to determine the component type of the component to be tested according to the component characteristic electrical signal, and execute a corresponding detection program according to the component type.

2. The airtight detection device according to claim 1, characterized in that: The electrical signal acquisition component includes a power supply, a sampling resistor and a signal processing component; The component to be tested is connected in series with the sampling resistor; The component characteristic electrical signal is an electrical signal obtained by the signal processing component from the sampling resistor.

3. The airtight detection device according to claim 1, characterized in that: The electrical access port includes a connector and an extension cord; The connector is in contact with and connected to the circuit interface of the component to be tested, and is connected to the device body of the airtightness detection device through the extension line.

4. The airtight detection device according to claim 1, characterized in that: Including detection of host and detection of slave; The detection host comprises an air supply component and at least one slave access valve; the air supply component supplies air to the detection slave through the slave access valve; The detection slave includes a plurality of detection branches connected in parallel; the detection branch includes an opening and closing air valve, a branch air pressure detection component, a branch cylinder, a cylinder valve and a reserved port; The first end of the on-off valve is connected to the slave access valve, and the second end of the on-off valve is connected to the reserved port and the cylinder valve respectively, and is connected to the branch cylinder through the cylinder valve; The branch air pressure detection component is used to detect the air pressure between the cylinder valve and the opening and closing air valve; The reserved port includes the detection gas port, the electrical access port and the electrical signal acquisition component.

5. A method for producing a sphygmomanometer, characterized in that: include: Obtain the sphygmomanometer gas circuit assembly; Connecting the gas circuit interface of the gas circuit assembly of the sphygmomanometer to the detection gas port, and connecting the circuit interface of the gas circuit assembly of the sphygmomanometer to the corresponding electrical access port; Receive component characteristic electrical signals from the electrical signal acquisition component corresponding to the electrical access port; the electrical signal acquisition component forms a loop with the sphygmomanometer gas circuit component through the electrical access port; Determining the component type of the corresponding blood pressure meter gas circuit component according to the component characteristic electrical signal; Determine a corresponding detection procedure according to the component type; Through the detection procedure, it is determined whether the gas circuit assembly of the sphygmomanometer is airtight; Assemble the sphygmomanometer gas circuit components that meet the airtightness requirements to obtain a finished sphygmomanometer.

6. The method for producing a sphygmomanometer according to claim 5, characterized in that: Before judging whether the gas circuit assembly of the sphygmomanometer is airtight through the detection procedure, the method further includes: According to the test procedure, determine the participating gas valves; Performing abnormality detection on the participating gas valves to determine whether there is an abnormal gas valve; Accordingly, judging whether the sphygmomanometer gas circuit assembly is airtight through the detection procedure includes: When the abnormal air valve does not exist, the detection procedure is used to determine whether the sphygmomanometer air circuit assembly is airtight.

7. The method for producing a sphygmomanometer according to claim 5, characterized in that: The electrical signal acquisition component includes a power supply, a sampling resistor and a signal processing component; the sphygmomanometer gas circuit component is connected in series with the sampling resistor; The receiving component characteristic electrical signal from the electrical signal acquisition component corresponding to the electrical access port comprises: Acquire the voltage division signal of the sampling resistor from the signal processing component; Determine a current signal flowing through the sampling resistor according to the voltage division signal and pre-stored resistance information of the sampling resistor; Correspondingly, determining the component type of the corresponding blood pressure meter gas circuit component according to the component characteristic electrical signal includes: Determine the relationship between the current signal and a preset first current value range and a second current value range, where any value within the first current value range is greater than any value within the second current value range; When the current signal is within the first current value range, the corresponding sphygmomanometer air circuit component is determined to be an air pump; when the current signal is within the second current value range, the corresponding sphygmomanometer air circuit component is determined to be an air valve.

8. The method for producing a sphygmomanometer according to claim 7, characterized in that: After determining the relationship between the current signal and the preset first current value range and the second current value range, the method further includes: When the current signal is not within the first current value range and the second current value range, determining whether the current signal is zero; When the current signal is zero, supplying gas to the detection gas port for a first preset time, and then obtaining the gas pressure value at the detection gas port; When the air pressure value is higher than the ambient atmospheric pressure, it is determined that the corresponding sphygmomanometer air circuit component is a cuff.

9. The method for producing a sphygmomanometer according to claim 8, characterized in that: After determining whether the current signal is zero, the method further includes: When the current signal is not zero, a fault alarm is sent.

10. The method for producing a sphygmomanometer according to any one of claims 5 to 9, characterized in that: The step of judging whether the gas circuit assembly of the sphygmomanometer is airtight by the detection procedure comprises: Determining whether the inflation time of the detection procedure exceeds a preset tolerance threshold; When the inflation time of the detection procedure exceeds a preset tolerance threshold, it is determined that the corresponding sphygmomanometer air circuit component is unqualified for air tightness.

Images