WO2018107738A1 - Triboelectric sensor testing device simulating vital sign - Google Patents

Abstract

A triboelectric sensor testing device (100) simulating a vital sign , the device comprising: a first frame (101); a sample table (102) and a first airbag (103) provided on the first frame (101), wherein an accommodating space is formed between the sample table (102) and the first airbag (103), and a triboelectric sensor (109) can be disposed in the accommodating space; and an air drive unit (105) connected to the first air bag (103). The air drive unit (105) is configured to repeatedly increase or decrease the amount of air in the first air bag (103), such that two contact surfaces of the triboelectric sensor (109) can come in contact or separate from each other, providing the triboelectric sensor (109) with a test condition close to a vital sign.

Description

Friction sensing test device for simulating human vital signs

Cross-reference to related applications

This application is required to be submitted to the China Patent Office on December 16, 2016, the application number is 201611167934.X, the name is “a friction sensing test device for simulating human micro-motion” and submitted to the Chinese Patent Office on February 16, 2017. The priority of the Chinese Patent Application No. 201710084477.6, entitled " Vital Signs Simulation Test Device", the entire contents of which is incorporated herein by reference.

Technical field

The invention relates to the technical field of friction sensing testing, and in particular to a friction sensing testing device for simulating human vital signs.

Background technique

At present, the friction-generative sensor has been applied to the monitoring and acquisition of human physiological signals, but for the test process of the friction-generative sensor, the existing friction-sensing test device mainly places a frictional power generation between two rigid plates. The sensor uses a drive mechanism to drive a rigid plate to move in opposite directions with respect to the other hard plate to simulate human micro motion, forcing the friction surfaces of the frictional power sensor to make hard contact. Because the two rigid plates can not simulate the elasticity of human tissue and the degree of micro-motion of the human body (such as the frequency and depth of breathing), there is a great difference between this test mode and the actual human body's heartbeat, breathing and other micro-motions. Finally, there is a great inconsistency between the test results of the friction sensing test device and the actual human test results.

Summary of the invention

In order to solve all or part of the above problems, the present invention provides a friction sensing test device simulating human vital signs such as breathing and heartbeat, which can promote soft contact between two friction surfaces of a frictional power sensor to reduce the friction transmission. There is an inconsistency between the test results of the test device and the actual human test results.

The invention provides a friction sensing test device for simulating human vital signs, comprising: a first frame; a sample stage and a first air bag disposed on the first frame, the sample stage and the first air bag A accommodating space is formed between the accommodating space, and a friction generating type sensor; and an air drive unit connected to the first air bag; Wherein the air drive unit is configured to repeatedly change the amount of inflation in the first air bag such that the two friction surfaces of the frictional power sensor can be contacted and separated.

The friction sensing test device for simulating human vital signs of the present invention can repeatedly change the amount of inflation in the first airbag by the air drive unit to cause the first airbag to simulate vital signs of the human body, such as vital signs such as human heartbeat and breathing, and the simulation of the present invention The friction sensing test device for vital signs of the human body can apply a cyclically varying, gentle and controllable pressure to the frictional power sensor, and the first airbag can simulate the human tissue elasticity through self-elastic deformation while simulating the vital signs of the human body. The two friction surfaces of the frictional power sensor are capable of soft contact in order to reduce the inconsistency between the test results of the friction sensing test device and the actual human test results.

The present invention also provides a friction sensing test device for simulating vital signs of a human body, comprising: a test unit and a vital sign simulation unit; wherein the test unit comprises: a first air bag and a first frame; wherein the first air bag is disposed at The inside of the first frame is used to apply a force generated by expansion or contraction thereof to the friction power generation type sensor; the first air bag and the first frame or the first air bag and the friction sensing test device simulating human vital signs A receiving space is formed between the placing planes, and a friction generating type sensor is disposed in the receiving space, and the friction generating type sensor is placed on the placement plane of the first frame or the friction sensing test device simulating the vital signs of the human body; the vital sign simulation unit includes a breathing simulation unit and/or a heartbeat simulation unit; wherein the breathing simulation unit is coupled to the first airbag in the testing unit for simulating a respiratory rate and a respiratory intensity of the human body to apply a force generated by expansion or contraction of the first balloon On a frictional power sensor; the heartbeat simulation unit is connected to the first airbag in the test unit for The heartbeat frequency and the heartbeat intensity of the human body are simulated so that the force generated by the expansion or contraction of the first airbag is applied to the frictional power sensor.

A friction sensing test device for simulating human vital signs according to the present invention simulates human breathing and/or heartbeat through a breathing simulation unit and/or a heartbeat simulation unit, and controls A balloon expands or contracts to simulate human vital signs such as human breathing and/or heartbeat. By using the friction sensing test device for simulating human vital signs provided by the present invention, it is possible to apply a force with controllable frequency and intensity on the frictional power generation sensor, so that the frictional power generation sensor outputs a test signal corresponding to the applied force; At the same time, the start time of breathing and heartbeat can be arbitrarily set, thereby controlling the synchronism of breathing and heartbeat, which makes the test result more realistically reflect the vital vital signs such as the actual breathing and heartbeat of the simulated human body.

In addition, the friction sensing test device for simulating human vital signs of the invention has the advantages of simple structure, convenient manufacture, safe and reliable use, and convenient implementation and popularization.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments will be briefly described below. In all the figures, like elements or parts are generally identified by like reference numerals. In the figures, elements or parts are not necessarily drawn to scale.

1 is a schematic structural view of a friction sensing test device simulating vital signs of a human body according to an embodiment of the present invention;

2 illustrates a first buffered actuator of a friction sensing test apparatus simulating vital signs of a human body in accordance with an embodiment of the present invention;

3 illustrates a first rotating member of a friction sensing test device simulating vital signs of a human body in accordance with an embodiment of the present invention;

4 is a waveform diagram of a friction sensing test device simulating human vital signs after simulating human breathing and heartbeat according to an embodiment of the present invention;

5 is a schematic structural view of a friction sensing test device simulating vital signs of a human body according to an embodiment of the present invention;

6 is a cross-sectional view showing a first wheel body in a second rotating member of a friction sensing test device simulating a vital sign of a human body according to an embodiment of the present invention;

7 is a schematic structural view of a second buffer actuator of a friction sensing test device simulating vital signs of a human body according to an embodiment of the present invention;

Figure 8a illustrates a friction sensing simulation simulating vital signs of a human body in accordance with an embodiment of the present invention. A schematic cross-sectional view of a second wheel in a third rotating member of the testing device;

Figure 8b is a cross-sectional view showing a second wheel in another third rotating member of the friction sensing test device simulating human vital signs according to an embodiment of the present invention;

9 is a block diagram showing the structure of a third buffer actuator of a friction sensing test device simulating vital signs of a human body according to an embodiment of the present invention.

detailed description

The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are only examples, and are not intended to limit the scope of the present invention.

1 is a block diagram showing the structure of a friction sensing test device simulating vital signs of a human body in accordance with an embodiment of the present invention. As shown in FIG. 1, the friction sensing test apparatus 100 includes a first frame 101, a sample stage 102 disposed on the first frame 101, and a first air bag 103 disposed on the first frame 101, and A gas drive unit 105 to which an air bag 103 is connected. An accommodation space is formed between the sample stage 102 and the first airbag 103, and the frictional power generation type sensor 109 can be disposed in the accommodation space for detecting simulated vital signs of the human body. The friction generating sensor 109 may be a physiological monitoring sensor belt based on a friction generator. The sensing strip includes a first electrode layer, a first polymer insulating layer, a second polymer insulating layer and a second electrode layer, which are sequentially stacked, wherein the first polymer insulating layer and the second high layer The opposite surfaces of the molecular polymer insulating layer constitute a friction interface, and at least one of the two surfaces constituting the friction interface is provided with a convex array structure, and the first electrode layer and the second electrode layer constitute the sensing strip Two signal output ends; the convex array structure separates the two friction surfaces from each other without being subjected to an external force. The material of the sample stage 102 can be selected from rubber or silica gel.

According to the present invention, the air drive unit 105 is arranged to be capable of repeatedly changing the amount of inflation in the first airbag 103 such that the first airbag 103 simulates vital signs of the human body such that the two friction surfaces of the frictional power sensor 109 can be contacted and separated, wherein The simulated vital signs of the human body include vital signs such as human heartbeat and breathing. The friction sensing test apparatus 100 for simulating human vital signs according to the embodiment of the present invention can repeatedly change the amount of inflation in the first airbag 103 by the air drive unit 105 to cause the first airbag 103 to simulate vital signs of the human body, such as human heartbeat, breathing, and the like. Body The first airbag 103 and the sample stage 102 can also play a buffering role by self-elastic deformation while simulating the vital signs of the human body to simulate the elasticity of the human body, so that the two friction surfaces of the frictional power generation sensor 109 can be softened. Contact to reduce the inconsistency between the test results of the friction sensing test apparatus 100 and the actual human test results.

The gas flooding unit 105 can be selected as a gas pump system capable of performing qi and deflation. However, in this embodiment, the gas flooding unit 105 does not select a conventional air pump system, which mainly includes a second airbag 1051 that communicates with the first airbag 103, and a first driving mechanism that can repeatedly squeeze the second airbag 1051. Wherein, the first airbag 103 and the second airbag 1051 are in communication through the first air duct. During the repeated pressing of the second airbag 1051 by the first driving mechanism, since the second airbag 1051 communicates with the first airbag 103, the first driving mechanism can control the first airbag 103 through the second airbag 1051, and further The amount of inflation in the first airbag 103 is repeatedly changed to cause the first airbag 103 to simulate human vital signs. That is, when the second airbag 1051 is reduced in volume by the action of the first driving mechanism, the gas extruded in the second airbag 1051 enters the first airbag 103 along the first air duct, forcing the first airbag. The volume of 103 is increased, thereby applying a load simulating a vital sign of the human body on the frictional power generation type sensor 109, causing the two friction surfaces of the frictional power generation type sensor 109 to contact each other; conversely, when the second airbag 1051 is restored to the original state after being squeezed At this time, the squeezed and extruded gas is returned to the second airbag 1051 along the first air conduit, and at this time, the load applied to the frictional power sensor 109 by the first airbag 103 is reduced or disappeared, and the frictional power sensor is used. The two friction surfaces of 109 are separated from one another by the action of the raised array structure. Thereby, the process in which the first airbag 103 expands and contracts with the contraction and expansion of the second airbag 1051 is extremely close to the process of expansion and contraction of the chest cavity when the human body breathes. In addition, the first airbag 103 is connected to the second airbag 1051 through the first air duct, and the first driving mechanism and the frictional power sensor 109 can be separately disposed to reduce the electromagnetic force generated by the first driving mechanism to the frictional power sensor 109. Interference, improve the accuracy of the test results.

In this embodiment, the first driving mechanism includes a second frame 1052 capable of carrying the second air bag 1051, and a first rotating member 1054 eccentrically rotatably disposed on the second frame 1052, wherein the first rotating member 1054 The second airbag 1051 can be pressed, and the second airbag 1051 is pressed and the internal gas is introduced into the first airbag 103 through the first air duct. Wherein, the first rotating member 1054 is preferably a cam or an eccentric. Passing the second airbag in communication with the first airbag 103 The first driving mechanism is spaced apart from the frictional power sensor 109 by 1051. On the basis of this, the first driving mechanism and the frictional power sensor 109 are respectively carried by the first frame 101 and the second frame 1052 which are independent of each other. The vibration caused by the operation of the first driving mechanism of the second frame 1052 does not substantially affect the operation of the frictional power generation type sensor 109 and the first air bag 103 on the first frame 101, and the accuracy of the detection result can be further improved. The first drive mechanism may also be selected as a linear drive system capable of performing repeated telescopic movements, such as a hydraulic cylinder system, a pneumatic cylinder system, or a linear motor system.

It will be readily understood that the first rotating member 1054 can be driven by a power mechanism other than the friction sensing test device 100, but preferably the friction sensing test device 100 has a power mechanism capable of driving the first rotating member 1054, such as The first driving mechanism further includes a first rotating source 1053 disposed on the second frame 1052, and the first rotating source 1053 provides power to the first rotating member 1054. Wherein, the first rotating source 1053 can be selected as an electric motor, an engine or other device capable of outputting the rotation of the first rotating member 1054. The first rotating source 1053 repeatedly presses the second airbag 1051 by the eccentrically rotating first rotating member 1054, and controls the inflation amount of the first airbag 103 by the second airbag 1051. In the process, due to the first The adjustment of the inflation amount of the airbag 103 is mainly achieved by the outer shape and the eccentric rotation of the first rotating member 1054. Therefore, by adjusting the rotational speed of the first rotational source 1053, the first airbag 103 can be periodically expanded and contracted to simulate the human body. The process of breathing.

When it is required to simulate a periodic special change in the vital signs of the human body, a plurality of first protrusions 1055 for pressing the second airbag 1051 may be provided on the outer circumference of the first rotating member 1054, and pass through the first convex From 1055 to simulate periodic special changes in human vital signs. The number, shape and position of the first protrusions 1055 are determined according to specific vital signs. For example, when a person is breathing with a heartbeat, when the frictional power sensor 109 detects the respiratory signal of the human body, the measured signal is necessarily accompanied by a signal of the heartbeat, that is, the measured signal is a composite of breathing and heartbeat. Signals may also be accompanied by weak signals from other vital signs of the human body. In the preferred embodiment shown in FIG. 3, the vital signs of the human body to be simulated include both the breathing and the heartbeat of the human body. The cross section of the first rotating member 1054 is elliptical, and the long radius R1 of the ellipse is 20-25 mm, and is short. The radius R2 is 18-22 mm, and the long radius is larger than the short radius, and the first protrusion 1055 is a semicircle whose center is the outer edge of the ellipse and the radius R0 is 3-5 mm. In the cylinder, the number of the semi-cylinders is two, and the center line between the two semi-cylinders passes through the center of the ellipse and forms an angle of 20-40 degrees with the long radius R1. Preferably, the elliptical long radius R1 is 23 mm, the short radius R2 is 20 mm, the first protrusion has a radius R0 of 4 mm, and the center line of the first protrusion has an angle of 30 degrees with the long radius. Alternatively, the first protrusion may be a semi-cylindrical body, or may be a semi-spherical shape or the like. In this embodiment, the friction sensing test device simulating the vital signs of the human body can simulate the breathing process of the human body by the pressing action of the outer circumference of the ellipse of the first rotating member 1054 on the second airbag 1051, and passes through the first protrusion 1055. The pulsating squeezing action of the second air bag 1051 simulates the heartbeat process of the human body to achieve the purpose of simulating both breathing and heartbeat. 4 is a waveform diagram of a friction sensing test device simulating human vital signs in a simulated human body breathing and heartbeat according to an embodiment of the present invention. The first rotating member 1054 used in this embodiment is the first shown in FIG. A rotating member 1054, according to Fig. 4, can be seen that the first rotating member 1054 shown in Fig. 3 can well simulate the breathing and heartbeat of the human body, and ensure that the waveforms detected after simulating human breathing and heartbeat can be compared with the actual human body. It roughly matches the heartbeat waveform.

In the embodiment, the first driving mechanism further includes a first buffering actuator 1056 disposed between the first rotating member 1054 and the second airbag 1051, wherein the first rotating member 1054 can pass through the first buffering actuator 1056. The second airbag 1051 is repeatedly pressed, as shown in FIG. 1 and FIG. When the first rotating member 1054 repeatedly presses the second airbag 1051 through the first buffering actuator 1056, the first rotating member 1054 can be effectively prevented from directly pressing the second airbag 1051, and the second airbag 1051 can be improved. The service life, on the other hand, can also cause the first rotating member 1054 to apply pressure to the second airbag 1051 to be more soothing, so that the action of the first airbag 103 on the frictional power sensor 109 is closer to the actual human body's breathing and heartbeat. The action process enables the two friction surfaces of the frictional power sensor 109 to make softer contact to further reduce the inconsistency between the test results of the friction sensing test apparatus 100 and the actual human test results.

The first buffer actuator 1056 can be directly selected as a member or component capable of performing elastic expansion, such as a rubber block, a silicone block, or a combination of both. In this embodiment, the first buffer actuator 1056 includes a first transmission plate 10561 and a second transmission plate 10562 that are sequentially away from the first rotating member 1054, and are disposed between the first transmission plate 10561 and the second transmission plate 10562. First elasticity The telescopic member 10563, as shown in FIG. 2, can make the process of applying pressure to the second airbag 1051 by the first rotating member 1054 more comfortably by the buffering action of the first elastic telescopic member 10563. The first elastic expansion member 10563 may be a relatively large rubber block, a silica gel block or a spring, or may be arranged in an array in a rubber block and a silica gel disposed between the first transmission plate 10561 and the second transmission plate 10562. Block or spring.

In order to prevent the first elastic expansion member 10563 from moving out of the first transmission plate 10561 and the second transmission plate 10562 from the first transmission plate 10561 and the second transmission plate 10562, the first buffer transmission 1056 further includes a first guiding rod 10564. One end of the first guiding rod 10564 is fixed to the second transmission plate 10562 after passing through the first elastic expansion member 10563, and the other end slidably penetrates the first transmission plate 10561. In addition, the two ends of the first elastic expansion member 10563 can be respectively connected to the first transmission plate 10561 and the second transmission plate 10562, such as welding, snapping or bonding.

In a preferred embodiment, the first source of rotation 1053 is selected as a speed control motor, and the friction sensing test apparatus 100 further includes a motor controller coupled to the speed control motor. Because there are subtle differences in human vital signs of different individuals, in order to simulate the vital signs of different individuals, the speed of the speed regulating motor can be adjusted to precisely control the expansion and contraction of the first airbag 103, so as to simulate the human life of different individuals. The purpose of the signs.

In one embodiment, the friction sensing test apparatus 100 further includes a first total air volume adjustment assembly 106 coupled to the first air bag 103 or the second air bag 1051. Wherein, the first total air volume adjusting component 106 may include a first airbag with a pressure relief valve connected to the first airbag 103 or the second airbag 1051. In view of the difference in body shape and constitution between individuals, such as fat and thin, body weight or tissue elasticity due to body fat content, in order to enable the first airbag 103 to simulate different individuals, the first total air volume adjustment component 106 can be adjusted. The total amount of air in one of the airbags 103 and the second airbags 1051 is such that the first airbags 103 can simulate the human condition of different individuals. In order for the first total air volume adjusting assembly 106 to accurately adjust the total amount of air in the first airbag 103 and the second airbag 1051, the friction sensing test apparatus 100 may include a first pressure monitoring connected to the first airbag 103 or the second airbag 1051. Device 107. Among them, the first pressure monitoring device 107 is preferably a mechanical barometer or an electronic barometer that can display readings.

In a preferred embodiment, the second frame 1052 includes a second air bag 1051 for carrying The first stage 10521 and the first support plate 10522 are vertically disposed on the first stage 10521. The first rotating member 1054 is eccentrically rotatably disposed on the first supporting plate 10522 through the first rotating shaft 1054a. A rotating shaft 1054a is parallel to the first stage 10521. The first rotating source 1053 is disposed on the first stage 10521 and connected to the first rotating shaft 1054a. The second frame 1052 of the present embodiment not only does not interfere with the movement between the components of the air drive unit 105, but also has the advantages of simple and compact structure, high strength, and convenient manufacture.

In a preferred embodiment, the first frame 100 includes a bottom plate 1011 and a top plate 1012 and a support side plate 1013 disposed between the bottom plate 1011 and the top plate 1012, wherein one of the sample stage 102 and the first air bag 103 It is connected to the top plate 1012, and the other is connected to the bottom plate 1011. The second frame 1052 of this embodiment not only does not interfere with the first airbag

The operation of the 103 and the frictional power generation type sensor 109 has the advantages of simple and compact structure, high strength, and convenient manufacture.

In summary, the friction sensing test apparatus 100 for simulating human vital signs of the embodiment of the present invention can apply a periodically varying, mildly controllable pressure to the frictional power sensor 109 to cause the two friction surfaces of the frictional power sensor 109. Soft contact is made to reduce the inconsistency between the test results of the friction sensing test apparatus 100 and the actual human test results.

A friction sensing test device for simulating human vital signs according to another embodiment of the present invention uses the friction sensing test device simulating human vital signs to simultaneously simulate the heartbeat and breathing of the human body, including: a test unit and a vital sign simulation unit. The vital sign simulation unit is the gas drive unit described above; wherein the test unit comprises: a first air bag and a first frame; the first air bag is disposed inside the first frame for expanding or contracting The force is applied to the frictional power generation type sensor; a first space is formed between the first airbag and the first airbag and the plane of the friction sensing test device simulating the vital signs of the human body, and the accommodation space is provided with a friction power generation type. The sensor, the frictional power sensor is placed on the placement plane of the first frame or the friction sensing test device simulating the vital signs of the human body; the vital sign simulation unit includes: a breathing simulation unit and/or a heartbeat simulation unit; a breathing simulation unit and a test unit The first airbag is connected to simulate the respiratory rate and respiratory intensity of the human body to make the first The force generated by the expansion or contraction of the airbag is applied to the frictional power sensor; the heartbeat simulation unit and test The first airbag in the unit is connected to simulate the heartbeat frequency and the heartbeat strength of the human body, so that the force generated by the expansion or contraction of the first airbag is applied to the frictional power sensor.

Optionally, the testing unit in the friction sensing test device for simulating human vital signs further includes: a sample stage disposed inside the first frame; and a receiving space formed between the first air bag and the sample stage, A friction generating type sensor is disposed in the accommodating space, and the friction generating type sensor is placed on the sample stage.

FIG. 5 is a schematic view showing the structure of a friction sensing test device for simulating human vital signs provided by the present invention. As shown in FIG. 5, the friction sensing test device for simulating human vital signs includes a test unit 1 and a vital sign simulation unit (not shown); wherein the test unit 1 includes: a first air bag 11 and a first frame 12 and a sample stage 13; the first air bag 11 is disposed inside the first frame 12, and the force generated by expanding or contracting the first air bag 11 is applied to the frictional power sensor 4; the sample stage 13 is also disposed at the An internal portion of a frame 12 for carrying a friction generating type sensor 4; the vital sign simulation unit includes: a breathing simulation unit 2 and a heartbeat simulation unit 3; the breathing simulation unit 2 is connected to the first air bag 11 in the testing unit 1, Simulating the respiratory rate and respiratory intensity of the human body to apply a force generated by expansion or contraction of the first airbag 11 to the frictional power sensor 4; the heartbeat simulation unit 3 is connected to the first airbag 11 in the test unit 1 for The heartbeat frequency and the heartbeat intensity of the human body are simulated so that the force generated by the expansion or contraction of the first airbag 11 is applied to the frictional power generation type sensor 4.

Further, the first frame 12 includes a top plate 121 and a bottom plate 122 and a supporting side plate 123 disposed between the bottom plate 122 and the top plate 121; wherein the first air bag 11 is fixedly disposed on the top plate 121. Optionally, the top plate 121 is made of a non-elastic material, and its position is fixed, thereby ensuring the same force applied to the frictional power generation sensor 4 in the case where the first airbag 11 has the same gas content, and ensuring the accuracy of the test result. And reliability.

Among them, an accommodation space is formed between the first airbag 11 and the sample stage 13, and a frictional power generation type sensor 4 is disposed in the accommodation space, and the frictional power generation type sensor 4 is placed on the sample stage 13. In addition, the sample stage 13 in the friction sensing test device for simulating human vital signs provided by the present invention may be omitted, and the bottom plate 122 of the first frame 12 or the friction of the human body vital signs provided by the present invention may be directly used. The placement plane of the sensing test device carries the frictional power sensor 4. Specifically, if the bottom plate 122 of the first frame 12 is directly used, the bearing is placed. When the power generation sensor 4 is wiped, an accommodation space is formed between the first airbag 11 and the bottom plate 122 of the first frame 12, and a frictional power generation type sensor 4 is disposed in the accommodation space, and the frictional power generation type sensor 4 is placed in the first frame 12 On the bottom plate 122; if the frictional power generation type sensor 4 is placed directly on the placement plane of the friction sensing test device for simulating the vital signs of the human body provided by the present invention, the first airbag 11 and the frictional transmission of the simulated human vital signs provided by the present invention are provided. An accommodation space is formed between the placement planes of the sensing test device, and a frictional power generation type sensor 4 is disposed in the accommodation space, and the frictional power generation type sensor 4 is placed on the placement plane of the friction sensing test device for simulating human vital signs provided by the present invention. A person skilled in the art can make a selection according to needs, which is not limited herein.

In addition, in order to bring the test environment closer to the actual environment in which the human body is located, the test results of the friction sensing test device using the human body vital signs provided by the present invention are more accurate and reliable, and the sample stage 13 can be made of hard material or elastic. It is made of soft materials (such as rubber, silica gel or sponge) and is not limited here. For example, if it is necessary to simulate the breathing and heartbeat of the human body lying on the sponge mattress, in order to bring the test environment closer to the actual environment in which the human body is located, the sample stage 13 is preferably made of a sponge material having elasticity, which enables the use of the present. The test results of the friction sensing test device for simulating human vital signs provided by the invention are more accurate and reliable. If the friction generating type sensor 4 is placed directly on the bottom plate 122 of the first frame 12, in order to bring the test environment closer to the actual environment in which the human body is located, the friction sensing test device for simulating human vital signs provided by the present invention is tested. The result is more accurate and reliable. The bottom plate 122 of the first frame 12 can be made of a hard material or a flexible soft material (such as rubber, silica gel or sponge), which is not limited herein. For example, if it is necessary to simulate the breathing and heartbeat of the human body lying on the rubber mattress, in order to bring the test environment closer to the actual environment in which the human body is located, the bottom plate 122 of the first frame 12 is preferably made of a flexible silicone material. This makes the test results of the friction sensing test device using the human body vital signs provided by the present invention more accurate and reliable. If the frictional power generation type sensor 4 is placed directly on the placement plane of the simulated human vital sign friction sensing test device provided by the present invention, in order to bring the test environment closer to the actual environment in which the human body is located, the simulated human vital signs provided by the present invention are used. The test result of the friction sensing test device is more accurate and reliable, and the placement plane of the friction sensing test device for simulating human vital signs provided by the present invention can be hard The placement plane of the material or the soft material having elasticity (such as rubber, silica gel or sponge, etc.) is not limited herein. For example, if it is necessary to simulate the breathing and heartbeat of the human body lying on the rubber mattress, in order to bring the test environment closer to the actual environment in which the human body is located, the placement plane of the friction sensing test device for simulating human vital signs provided by the present invention is preferably The elastic silicone is placed on the plane, which can make the test results of the friction sensing test device which simulates the vital signs of the human body provided by the invention more accurate and reliable.

Further, the frictional power generation sensor 4 tested by the friction sensing test device for simulating human vital signs provided by the present invention may be a friction generator and/or a piezoelectric generator and includes a friction generator and/or a piezoelectric generator. Related products (such as physiological monitoring sensor strips including friction generators and/or piezoelectric generators), of course, can also be tested for friction using other friction sensing test devices that simulate the human vital signs provided by the present invention. For the power generation type sensor, a person skilled in the art can test the related friction power generation type sensor as needed, which is not limited herein. Wherein, the friction generator may be a friction generator in the prior art, for example, the friction generator is a three-layer structure, a four-layer structure, a five-layer intermediate film structure or a five-layer inter-electrode structure friction generator, and the above friction generator At least two surfaces constituting the friction interface are included, and the friction generator has at least two signal output ends; the piezoelectric generator may also be a piezoelectric generator in the prior art, for example, the piezoelectric generator is oxidized. A piezoelectric generator made of a piezoelectric material such as zinc, piezoelectric ceramic, polyvinylidene fluoride, porous polypropylene or porous polytetrafluoroethylene, the piezoelectric generator having at least two signal output ends. For ease of understanding and description, the frictional power generation sensor 4 is described in detail as an example of a physiological monitoring sensor belt (hereinafter referred to as a physiological monitoring sensor belt) including a friction generator.

The breathing simulation unit 2 is connected to the first airbag 11 in the test unit 1 for simulating the respiratory rate and respiratory intensity of the human body. It is possible to expand or contract the first airbag 11 by changing the amount of inflation in the first airbag 11, so that the force generated by the expansion or contraction of the first airbag 11 is applied to the physiological monitoring sensor belt even if the physiological monitoring sensor belt The two surfaces that make up the friction interface contact or separate, thereby simulating the breathing of the human body.

The heartbeat simulation unit 3 is connected to the first airbag 11 in the test unit 1 for simulating the human heartbeat frequency and the heartbeat intensity. It is also possible to expand or contract the first airbag 11 by changing the amount of inflation in the first airbag 11, thereby causing the force generated by the expansion or contraction of the first airbag 11. It is applied to the physiological monitoring sensor belt, even if the two surfaces of the physiological monitoring sensor belt that constitute the friction interface contact or separate, thereby simulating the heartbeat of the human body.

In the friction sensing test device for simulating human vital signs provided by the present invention, the first airbag 11 is expanded or contracted by the breathing simulation unit 2 and the heartbeat simulation unit 3, thereby causing two of the physiological monitoring sensor belts to constitute a friction interface. The surface is brought into contact or separated by the expansion or contraction of the first airbag 11, in such a manner that compared with the manner in which the external force is exerted on the two surfaces constituting the friction interface to passively contact or separate the breathing and the heartbeat of the simulated human body, not only the test is performed The environment is closer to the actual environment in which the human body is located, and the test results of the friction sensing test device using the human body vital signs provided by the present invention are more accurate and reliable.

Under normal circumstances, the human body is accompanied by a heartbeat when breathing, that is, the signal detected by the frictional power sensor 4 is a composite signal of breathing and heartbeat. If the process of human breathing and heartbeat is simulated, the vital sign simulation unit needs to include both the breathing simulation unit 2 and the heartbeat simulation unit 3, and the breathing simulation unit 2 and the heartbeat simulation unit 3 need to work simultaneously to simulate human breathing and The phenomenon of heartbeat accompanied by. However, due to the actual respiratory rate and respiratory intensity of the human body and the different heartbeat frequency and heartbeat intensity, the actual respiratory rate and respiratory intensity and heartbeat frequency of the human body can be determined according to the actual respiratory rate and respiratory intensity, as well as the heartbeat frequency and heartbeat intensity. The preset breathing rate and the preset breathing intensity and the preset heartbeat frequency and the preset heartbeat intensity are the same as the heartbeat strength, and by adjusting the breathing frequency and breathing intensity of the breathing simulation unit 2 and the heartbeat frequency and heartbeat intensity of the heartbeat simulation unit 3 Satisfying the preset breathing rate and the preset breathing intensity and the setting requirements of the preset heartbeat frequency and the preset heartbeat intensity (such as making the breathing rate and breathing intensity of the breathing simulation unit 2 and the heartbeat frequency and heartbeat intensity of the heartbeat simulation unit 3 equal to the pre- Set the respiratory rate and preset breathing intensity as well as the preset heartbeat frequency and preset heartbeat intensity). In addition, since the actual breathing and heartbeat of the human body cannot be synchronized in most cases, it is also possible to control the synchronization of the simulated human body's breathing and heartbeat by adjusting the initial working time of the breathing simulation unit 2 and the heartbeat simulation unit 3. Sex.

In a specific embodiment of the present invention, as shown in FIG. 5, the breathing simulation unit 2 includes: a third airbag 21 that communicates with the first airbag 11 through a second air duct (not shown), and is capable of carrying and The third airbag 21 is repeatedly squeezed by the preset breathing frequency and/or the preset breathing intensity The second drive mechanism 22 that changes the amount of inflation in the first airbag 11 is used. Wherein, the second driving mechanism 22 repeatedly presses the third airbag 21 at a preset breathing frequency and/or a preset breathing intensity, and the third airbag 21 continuously changes the first after being repeatedly squeezed by the second driving mechanism 22. The amount of inflation in the air bag 11 ultimately causes the first air bag 11 to expand or contract at a preset breathing rate and/or a preset breathing intensity.

Specifically, when the second driving mechanism 22 presses the third airbag 21, the gas content in the third airbag 21 is reduced, the volume is reduced, and part of the gas in the third airbag 21 enters the first airbag 11 through the second air guiding tube. The gas content in the first airbag 11 is increased and the volume is increased to realize the expansion of the first airbag 11, so that the first airbag 11 exerts a force on the physiological monitoring sensor belt 4 to simulate the inhalation of the human body, thereby The two surfaces of the physiological monitoring sensor belt 4 constituting the friction interface are in contact with each other; when the third airbag 21 is restored from the pressed state to the original state, part of the gas in the first airbag 11 flows to the third through the second air duct. In the airbag 21, the gas content in the first airbag 11 is lowered, the volume is reduced, and the contraction of the first airbag 11 is achieved, so that the first airbag 11 exerts a function of simulating human body exhalation on the physiological monitoring sensor belt 4. The force, in turn, separates the two surfaces of the physiological monitoring sensor strip 4 that constitute the friction interface from each other. The first airbag 11 realizes the expansion or contraction of the preset breathing frequency and/or the preset breathing intensity as the third airbag 21 contracts or expands. This process is very close to the expansion and contraction process of the chest during the actual breathing of the human body. The accuracy of the test results. In addition, the first airbag 11 and the third airbag 21 are connected through the second air duct, so that the breathing simulation unit 2 can be separately disposed from the testing unit 1 and the physiological monitoring sensor belt 4, thereby reducing the respiratory monitoring unit 2 to physiological monitoring sensing. The electromagnetic interference generated by the band 4 also improves the accuracy of the test results.

In the breathing simulation unit 2, the second driving mechanism 22 includes a third chassis 221 capable of carrying the third airbag 21, a second rotating member 222 rotatably disposed on the third chassis 221, and a third machine a second rotation source 223 on the frame 221; wherein the second rotation member 222 is capable of repeatedly pressing the third air bag 21 by a preset breathing frequency and/or a preset breathing intensity, and the third air bag 21 is squeezed to be internalized Part of the gas enters the first air bag 11 through the second air pipe, and the third air bag 21 continuously changes the amount of air in the first air bag 11 after being repeatedly pressed by the second rotating member 222, and finally the first air bag is finally made. 11 expanding or contracting at a respiratory rate and/or a preset respiratory intensity; the second rotational source 223 is coupled to the second rotating member 222 for use in the second rotation The member 222 provides power to rotate the second rotating member 222, and the rotational frequency of the second rotating source 223 can be adjusted according to a preset breathing frequency to meet the setting requirement of the preset breathing frequency.

Further, the second rotating member 222 includes a second rotating shaft (not shown) rotatably disposed on the third frame 221 and a first rotating body disposed on the second rotating shaft (not shown in the figure) The second rotating shaft can drive the first rotating body to rotate under the driving of the second rotating source 223. Among them, the first wheel structure is preferably an eccentric wheel.

Specifically, as shown in FIG. 6, the first wheel body of the second rotating member 222 has an elliptical cross section having a major axis radius R3 of 12-14 mm and a minor axis radius R4 of 9-11 mm. Preferably, the elliptical shape has a major axis radius R3 of 13 mm and a minor axis radius R4 of 10 mm. In the embodiment, the second rotating member 222 can repeatedly press the outer shape of the first rotating body and the second rotating member 222 in the second rotating member 222 under the action of the second rotating source 223. After the third air bag 21 is pressed, a part of the gas inside the third air bag 21 is introduced into the first air bag 11 through the second air pipe, and the third air bag 21 is continuously pressed by the second rotating member 222 repeatedly. The amount of inflation in the first airbag 11 is changed to finally expand or contract the first airbag 11.

Therefore, it is known that the degree of squeezing of the third rotating member 222 to the third airbag 21 is adjusted by adjusting the major axis length and the minor axis length of the first wheel-shaped body having an elliptical cross section in the second rotating member 222, thereby controlling The amount of inflation in the first airbag 11 further controls the degree of friction of the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 to achieve control of the breathing intensity of the breathing simulation unit 2, that is, breathing The breathing intensity of the simulation unit 2 is related to the major axis length and the minor axis length of the first wheel body having an elliptical cross section in the second rotating member 222, that is, the first wheel in the second rotating member 222 having an elliptical cross section. The larger the difference between the major axis length and the minor axis length, the greater the force applied by the second rotating member 222 to the third airbag 21, and the greater the breathing intensity of the breathing simulation unit 2.

Specifically, as shown in FIG. 6, if the length of the minor axis of the first wheel-shaped body having an elliptical cross section in the second rotating member 222 is fixed, as the length of the long axis increases, that is, the long axis radius R1 and The difference of the minor axis radius R2 is gradually increased, the force applied by the second rotating member 222 to the third airbag 21 is gradually increased, and the breathing intensity of the breathing simulation unit 2 is gradually increased, and vice versa. The length of the major axis of the first wheel-shaped body having an elliptical cross section in the second rotating member 222 is fixed, and the length of the minor axis increases, that is, the radius of the major axis R3 and the minor axis radius. The difference of R4 is gradually decreased, the force applied by the second rotating member 222 to the third airbag 21 is gradually reduced, and the breathing intensity of the breathing simulation unit 2 is gradually decreased, and vice versa, and will not be described herein.

The second rotation source 223 may be a linear drive system capable of performing repeated telescopic movements such as a hydraulic cylinder system, a pneumatic cylinder system, or a linear motor system. Specifically, the second rotation source 223 may also include a first rotation output device 2231 such as an electric motor or the like, and a first transmission device 2232 that connects the first rotation output device 2231 and the second rotation member 222, such as a transmission shaft or the like. If the first rotational output device 2231 is a speed regulating motor, the rotational frequency of the second rotating member 222 can be adjusted by controlling the rotational speed of the adjustable speed motor to achieve that the respiratory frequency of the breathing simulation unit 2 is adjusted to meet the preset respiratory frequency. The purpose of setting the requirements.

In this embodiment, the physiological monitoring sensor strip 4 is separately disposed from the second driving mechanism 22 by the third airbag 21 in communication with the first airbag 11, and on the basis of this, the first rack is separated from each other. 12 and the third frame 221 respectively carry the physiological monitoring sensor strip 4 and the second rotating member 222 and the second rotating source 223, which causes the third frame 221 to be generated by the second rotating member 222 and the second rotating source 223 The vibration does not affect the normal operation of the test unit 1, and the accuracy of the test result is improved.

Further, as shown in FIG. 5, the second driving mechanism 22 further includes a second buffering actuator 224 disposed between the third airbag 21 and the second rotating member 222; the second buffering actuator 224 is used in the first The second buffer actuator 224 repeatedly presses the third airbag 21 under the driving of the two rotating members 222. When the second rotating member 222 repeatedly presses the third airbag 21 through the second buffering actuator 224, the second rotating member 222 can be prevented from directly pressing the third airbag 21 rigidly, which can not only improve the use of the third airbag 21. The life is prevented from directly damaging the third airbag 21 by the second rotating member 222, and the second rotating member 222 can be caused to exert a more soothing pressure on the third airbag 21, thereby using the simulated human vital signs of the present invention. The test process of the friction sensing test device is closer to the actual breathing process of the human body, thereby making the test result more accurate.

Wherein, the second buffer actuator 224 is a member or assembly capable of performing elastic expansion and contraction. Specifically, as shown in FIG. 7, in the specific embodiment, the second buffering actuator 224 includes a third driving plate 2241 and a fourth driving plate 2242 which are sequentially away from the second rotating member 222, and is disposed on the third transmission. A second elastically stretchable member 2243 between the plate 2241 and the fourth drive plate 2242. The squeezing process of the second rotating member 222 to the third airbag 21 can be made more relaxed by the cushioning action of the second elastically stretchable member 2243. Optionally, the second elastically stretchable members 2243 are arranged in an array on the third drive plate 2241 and the fourth drive plate 2242.

Optionally, the second elastic expansion member 2243 is a rubber block, a silicone block or a spring or the like. For example, if the second elastic expansion member 2243 is a spring, according to Hooke's law, the magnitude of the force applied by the second rotating member 222 to the third airbag 21 can be determined by the height of the spring compression or release, thereby determining the right The amount of inflation in the airbag 11 further determines the degree of friction of the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4, and the monitoring of the breathing intensity of the breathing simulation unit 2 is realized. Further, a pressure sensor may be disposed between the third airbag 21 and the second buffer actuator 224 (the fourth transmission plate 2242) to monitor the pressure received by the third airbag 21.

Further, the second buffer actuator 224 further includes a plurality of second guiding rods 2244; one end of the second guiding rod 2244 is fixed on the fourth driving plate 2242 after penetrating the second elastic stretching member 2243, and the other end is slidable The ground penetrates the third transmission plate 2241. In addition, the two ends of the second elastic expansion member 2243 can also be connected to the third transmission plate 2241 and the fourth transmission plate 2242 by means of welding, snapping or bonding, etc., and those skilled in the art can select according to requirements. No restrictions are imposed. The second guide bar 2244 can prevent the second elastically stretchable member 2243 from moving in series with the third drive plate 2241 and the fourth drive plate 2242 from the third drive plate 2241 and the fourth drive plate 2242.

Optionally, the third frame 221 includes a second stage 2211 for carrying the third air bag 21 and a second support plate 2212 vertically disposed on the second stage 2211; wherein the first wheel body The second rotating shaft is rotatably disposed on the second supporting plate 2212, and the second rotating shaft is parallel to the second stage 2211; the second rotating source 223 is disposed on the second stage 2211. Not only does it not interfere with the movement between the components in the breathing simulation unit 2, but also has the advantages of compact structure, high strength and convenient manufacture.

In addition, the second driving mechanism 22 may further include at least one penetrating through the second supporting plate 2212 a first limiting rod 225 (two first limiting rods are shown in FIG. 5 ), the first limiting rod 225 is located at an upper portion of the second buffering actuator 224 for defining the second buffering actuator 224 Rebound position. The first limiting lever 225 may be specifically located at a position where the second rotating member 222 is rotated to a plane where the short axis is perpendicular to the third driving plate 2241, and the second rotating member 222 is tangent to the upper surface of the third driving plate 2241. The first limiting rod 225 can be used to define the rebound position of the second buffering actuator 224, so as to prevent the second buffering actuator 224 from being excessively shocked due to the instantaneous rebounding force, damaging the second rotating member 222, and having the advantages of convenient disassembly and simple structure. Easy to adjust and other advantages.

In a specific embodiment of the present invention, as shown in FIG. 5, the heartbeat simulation unit 3 includes: a fourth airbag 31 that communicates with the first airbag 11 through a third air duct (not shown), and is capable of carrying and The third driving mechanism 32 that repeatedly presses the fourth airbag 31 to change the amount of inflation in the first airbag 11 is preset by the heartbeat frequency and/or the heartbeat intensity. The third driving mechanism 32 repeatedly presses the fourth airbag 31 with a preset heartbeat frequency and/or a preset heartbeat strength, and the fourth airbag 31 continuously changes the first after being repeatedly squeezed by the third driving mechanism 32. The amount of inflation in the air bag 11 ultimately causes the first air bag 11 to expand or contract at a preset heartbeat frequency and/or a preset heartbeat strength.

Specifically, when the third driving mechanism 32 presses the fourth airbag 31, the gas content in the fourth airbag 31 is reduced, the volume is reduced, and part of the gas in the fourth airbag 31 enters the first airbag 11 through the third air guiding tube. The gas content in the first airbag 11 is increased, the volume is increased, and the expansion of the first airbag 11 is realized, so that the first airbag 11 exerts a force on the physiological monitoring sensor belt 4 to simulate the expansion of the human heart muscle, thereby The two surfaces of the physiological monitoring sensor belt 4 constituting the friction interface are in contact with each other; when the fourth airbag 31 is restored from the pressed state to the original state, part of the gas in the first airbag 11 flows through the third air conduit to the fourth In the airbag 31, the gas content in the first airbag 11 is reduced, the volume is reduced, and the contraction of the first airbag 11 is achieved, thereby causing the first airbag 11 to exert a function of simulating human myocardial contraction on the physiological monitoring sensor belt 4. The force, in turn, separates the two surfaces of the physiological monitoring sensor strip 4 that constitute the friction interface from each other. The first airbag 11 realizes the expansion or contraction of the preset heartbeat frequency and/or the preset heartbeat intensity as the fourth airbag 31 contracts or expands. This process is very close to the actual myocardial expansion and contraction process of the human body, and the test is improved. The accuracy of the results. In addition, the first airbag 11 and the fourth airbag 31 are connected through the third air duct, so that the heartbeat simulation unit 3 and the test unit 1 and The physiological monitoring sensor strips 4 are separately disposed, thereby reducing the electromagnetic interference generated by the heartbeat analog unit 3 on the physiological monitoring sensor strip 4, which also improves the accuracy of the test results.

In the heartbeat simulation unit 3, the third drive mechanism 32 includes a fourth chassis 321 capable of carrying the fourth airbag 31, a third rotation member 322 rotatably disposed on the fourth chassis 321, and a fourth machine a third rotation source 323 on the frame 321; wherein the third rotation member 322 can repeatedly press the fourth airbag 31 by a preset heartbeat frequency and/or a preset heartbeat intensity, and the fourth airbag 31 is squeezed to be internalized Part of the gas enters the first airbag 11 through the third air duct, and the fourth airbag 31 continuously changes the amount of inflation in the first airbag 11 after being repeatedly pressed by the third rotating member 322, and finally the first airbag is finally made. 11 expanding or contracting with a heartbeat frequency and/or a preset heartbeat strength; the third rotation source 323 is coupled to the third rotating member 322 for powering the third rotating member 322 to rotate the third rotating member 322, and The rotation frequency of the three rotation source 323 can be adjusted according to the preset heartbeat frequency to meet the setting requirement of the preset heartbeat frequency.

Further, the third rotating member 322 includes a third rotating shaft (not shown) rotatably disposed on the fourth frame 321 and a second rotating body disposed on the third rotating shaft (not shown in the figure) The third rotating shaft can drive the second rotating body to rotate under the driving of the third rotating source 323. The second wheel structure is preferably an eccentric.

Optionally, as shown in FIG. 8a, the second wheel body of the third rotating member 322 has an elliptical cross section, and the elliptical long axis radius R5 is 10-12 mm, and the short axis radius R6 is 9-11 mm. . Preferably, the elliptical shape has a major axis radius R5 of 11 mm and a minor axis radius R6 of 10 mm. In the embodiment, the third rotating member 322 can repeatedly press the outer shape of the second rotating body in the third rotating member 322 and the rotation of the third rotating member 322 under the action of the third rotating source 323. After the fourth airbag 31 is pressed, the fourth airbag 31 is pressed into the first airbag 11 through the third air duct, and the fourth airbag 31 is continuously pressed by the third rotating member 322. The amount of inflation in the first airbag 11 is changed to finally expand or contract the first airbag 11.

Therefore, it is known that the degree of squeezing of the third rotating member 322 to the fourth airbag 31 is adjusted by adjusting the major axis length and the minor axis length of the second wheel-shaped body having an elliptical cross section in the third rotating member 322, thereby controlling The amount of inflation in the first airbag 11 further reaches the physiological monitoring sensor belt 4 Controlling the degree of friction of the two surfaces constituting the friction interface to achieve control of the heartbeat intensity of the heartbeat simulation unit 3, that is, the heartbeat intensity of the heartbeat simulation unit 3 and the cross section of the third rotation member 322 are elliptical The length of the major axis of the second wheel is related to the length of the minor axis, that is, the difference between the length of the major axis and the length of the minor axis of the second wheel having an elliptical cross section in the third rotating member 322 is greater, and the third The greater the force applied by the rotating member 322 to the fourth airbag 31, the greater the heartbeat strength of the heartbeat simulation unit 3.

Specifically, as shown in FIG. 8a, if the length of the minor axis of the second wheel-shaped body having an elliptical cross section in the third rotating member 322 is fixed, as the length of the long axis increases, that is, the long axis radius R5 and The difference of the minor axis radius R6 is gradually increased, the force applied by the third rotating member 322 to the fourth airbag 31 is gradually increased, and the heartbeat intensity of the heartbeat simulation unit 3 is gradually increased, and vice versa, and will not be described herein. If the length of the major axis of the second rotating body having the elliptical cross section in the third rotating member 322 is fixed, the difference between the major axis radius R5 and the minor axis radius R6 gradually increases as the length of the minor axis increases. The force applied by the third rotating member 322 to the fourth airbag 31 is gradually reduced, and the heartbeat strength of the heartbeat simulation unit 3 is gradually decreased, and vice versa, and details are not described herein again.

Under normal circumstances, the actual heartbeat strength of the human body is smaller than the actual respiratory intensity of the human body, and in order to conform to the actual situation, the long axis radius and the short axis radius of the cross section of the second wheel body in the third rotating member 322 can be made. The ratio is smaller than the ratio of the major axis radius to the minor axis radius of the cross section of the first wheel in the second rotating member 222, thereby ensuring that the fourth airbag 31 is inflated less than the third during a single extrusion process. The amount of inflation of the airbag 21 is such that the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 under the action of the heartbeat simulation unit 3 are subjected to less force than the physiological monitoring sensor belt 4 under the action of the breathing simulation unit 2. The force exerted on the two surfaces constituting the friction interface, so that the test results are closer to the actual human body test results, accurate and reliable.

Alternatively, as shown in FIG. 8b, the second wheel in the third rotating member 322 may also have a circular cross section, and the radius R7 of the circular shape is 9-11 mm. Preferably, the radius R7 of the circle is 10 mm. At this time, the heartbeat intensity of the heartbeat simulation unit 3 is related to the radius of the second wheel body having a circular cross section in the third rotating member 322, that is, the second wheel body having a circular cross section in the third rotating member 322. The larger the radius R7 is, the third rotating member 322 applies to the fourth airbag 31. The greater the force, the greater the heartbeat intensity of the heartbeat analog unit 3, and vice versa, and will not be described here.

Under normal circumstances, the actual heartbeat strength of the human body is less than the actual respiratory intensity of the human body. In order to conform to the actual situation of the human body, the radius of the second circular body having a circular cross section in the third rotating member 322 should be smaller than the second rotation. The cross section of the member 222 is the major axis radius of the cross section of the first elliptical body, thereby ensuring that the amount of inflation of the fourth airbag 31 during the single extrusion is smaller than the amount of inflation of the third airbag 21. Therefore, the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 under the action of the heartbeat simulation unit 3 are subjected to a force smaller than that constituting the friction interface in the physiological monitoring sensor belt 4 under the action of the breathing simulation unit 2. The force exerted on the two surfaces, which in turn makes the test results closer to the actual human test results, accurate and reliable.

Further, a plurality of second protrusions 3221 for pressing the fourth airbag 31 are provided at intervals on the outer circumferential surface of the second wheel body in the third rotating member 322. The second protrusion 3221 is a semi-cylindrical body having a center of a cross section of the second wheel of the third rotating member 322 and having a radius of 1-2 mm.

It should be noted that if the second wheel body of the third rotating member 322 has an elliptical cross section, the second protrusions 3221 are spaced apart from each other on the outer circumferential surface of the second wheel body, in order to be in contact with the human body ( That is, under normal circumstances, the actual heartbeat strength of the human body is less than the actual respiratory intensity of the human body, and the radius of the second protrusion 3221 and the long axis radius of the second wheel body having an elliptical cross section in the third rotating member 322 The sum should be smaller than the major axis radius of the first wheel in the first rotating member 222 having an elliptical cross section; if the second wheel in the third rotating member 322 has a circular cross section, the second convex portion The 3221 is spaced apart from the outer circumferential surface of the second wheel body, and the radius of the second protrusion 3221 is matched with the actual situation of the human body (that is, under normal circumstances, the actual heartbeat strength of the human body is less than the actual breathing intensity of the human body). The sum of the radii of the second wheel having a circular cross section in the third rotating member 322 should be smaller than the major axis radius of the first wheel in the second rotating member 222 having an elliptical cross section. With the above structure, it is possible to ensure that the inflation amount of the fourth airbag 31 during the single extrusion process is smaller than the inflation amount of the third airbag 21, so that two of the physiological monitoring sensor belts 4 under the action of the heartbeat simulation unit 3 constitute the friction interface. The force exerted on the surface is less than the force exerted on the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 under the action of the breathing simulation unit 2, thereby making the test result closer to the actual human body test result, accurate reliable.

Specifically, as shown in FIG. 8b, the sum of the radius R6 of the second protrusion 3221 and the radius of the second wheel body having a circular cross section in the third rotating member 322 is smaller than the ellipse in the cross section of the first rotating member 222. The long axis radius of the first wheel of the shape. And the number of the second protrusions 3221 is preferably two, and the center line between the two half cylinders passes through the center of the cross section of the second wheel body in the third rotating member 322, using such a structure It can be ensured that the inflation amount of the fourth airbag 31 during the single extrusion process is smaller than the inflation amount of the third airbag 21, so that the two surfaces of the physiological monitoring sensor belt 4 under the action of the heartbeat simulation unit 3 constitute the friction interface. The force received is less than the force exerted by the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 under the action of the breathing simulation unit 2, thereby making the test result closer to the actual human body test result, accurate and reliable.

The third rotation source 323 may be a linear drive system capable of performing repeated telescopic movements such as a hydraulic cylinder system, a pneumatic cylinder system, or a linear motor system. Specifically, the third rotation source 323 may also include a third rotation output device 3231 such as an electric motor or the like, and a third transmission device 3232 that connects the third rotation output device 3231 and the third rotation member 322, such as a transmission shaft or the like. If the third rotation output device 3231 is a speed control motor, the rotation frequency of the third rotation member 322 can be adjusted by controlling the rotation speed of the speed control motor, so as to adjust the heartbeat frequency of the heartbeat simulation unit 3 to meet the preset heartbeat frequency. The purpose of setting the requirements.

In this embodiment, the physiological monitoring sensor strip 4 is disposed separately from the third driving mechanism 32 by the fourth airbag 31 in communication with the first airbag 11, and on the basis of this, the first rack is separated from each other. The 12 and fourth frames 321 respectively carry the physiological monitoring sensor strip 4 and the third rotating member 322 and the third rotating source 323, which causes the fourth chassis 321 to be operated by the third rotating member 322 and the third rotating source 323. The vibration does not affect the normal operation of the test unit 1, and the accuracy of the test result is improved.

Further, as shown in FIG. 5, the third driving mechanism 32 further includes a third buffering actuator 324 disposed between the fourth airbag 31 and the third rotating member 322; the third buffering actuator 324 is used in the first The third buffer actuator 324 repeatedly presses the fourth airbag 31 under the driving of the three rotating members 322. When the third rotating member 322 repeatedly presses the fourth airbag 31 through the third buffering actuator 324, the third rotating member 322 can be prevented from directly rigidly pressing the fourth airbag 31, which can not only improve the use of the fourth airbag 31. Life, avoiding the third rotating member 322 directly to the first The damage caused by the extrusion of the four airbags 31 can also cause the third rotating member 322 to exert a more soothing pressure on the fourth airbag 31, so that the testing process of the friction sensing test device using the simulated human vital signs of the present invention is closer to the human body. The actual heartbeat process, which in turn makes the test results more accurate.

Among them, the third buffer actuator 324 is a member or assembly capable of performing elastic expansion and contraction. Specifically, as shown in FIG. 9, in the specific embodiment, the third buffering actuator 324 includes a fifth driving plate 3241 and a sixth driving plate 3242 which are sequentially away from the third rotating member 322, and is disposed on the fifth transmission. A third elastically stretchable member 3243 between the plate 3241 and the sixth drive plate 3242. The squeezing process of the third rotating member 322 to the fourth airbag 31 can be made more relaxed by the cushioning action of the third elastically stretchable member 3243. Optionally, the third elastic expansion members 3243 are arranged in an array on the fifth transmission plate 3241 and the sixth transmission plate 3242.

Optionally, the third elastic expansion member 3243 is a rubber block, a silicone block or a spring or the like. For example, if the third elastically stretchable member 3243 is a spring, according to Hooke's law, the magnitude of the force applied by the third rotating member 322 to the fourth airbag 31 can be determined by the height of the spring compression or release, thereby determining the right The amount of inflation in the airbag 11 further determines the degree of friction of the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4, thereby realizing the monitoring of the heartbeat intensity of the heartbeat simulation unit 3. Further, a pressure sensor may be disposed between the fourth airbag 31 and the third buffer actuator 324 (sixth transmission plate 3242) to monitor the pressure applied to the fourth airbag 31.

Further, the third buffer actuator 324 further includes a plurality of third guiding rods 3244; one end of the third guiding rod 3244 is fixed on the sixth driving plate 3242 after passing through the third elastic stretching member 3243, and the other end is slidable. The ground penetrates the fifth transmission plate 3241. In addition, the two ends of the third elastic expansion member 3243 may be connected to the fifth transmission plate 3241 and the sixth transmission plate 3242 by means of welding, snapping or bonding, etc., and those skilled in the art may select according to requirements. No restrictions are imposed. The third elastic rod 3324 can be prevented from being strung from the fifth transmission plate 3241 and the sixth transmission plate 3242 by the third guide rod 3244 from the fifth transmission plate 3241 and the sixth transmission plate 3242.

Optionally, the fourth frame 321 includes a third stage 3211 for carrying the fourth air bag 31 and a third support plate 3212 vertically disposed on the third stage 3211; wherein, the second wheel The third rotating shaft is rotatably disposed on the third supporting plate 3212, and the third rotating shaft is parallel to the third stage 3211; the third rotating source 323 is disposed on the third stage 3211. The method not only does not interfere with the movement between the components in the heartbeat simulation unit 3, but also has the advantages of compact structure, high strength, and convenient manufacture.

In addition, the third driving mechanism 32 may further include at least one second limiting rod 325 (two second limiting rods are shown in FIG. 5) penetrating through the third supporting plate 3212, and the second limiting rod 325 is located at the third An upper portion of the bumper actuator 324 is used to define a bounce position of the third bumper actuator 324. The second limiting lever 325 may be specifically located at a position where the third rotating member 322 is rotated to a plane where the short axis is perpendicular to the fifth driving plate 3241, and the third rotating member 322 is tangent to the upper surface of the fifth driving plate 3241. The second limiting lever 325 can be used to define the rebound position of the third buffering actuator 324, so as to prevent the third buffering actuator 324 from being excessively damaged due to the instantaneous rebounding force, damaging the third rotating member 322, and having the advantages of convenient disassembly and simple structure. Easy to adjust and other advantages.

Further, the friction sensing test device for simulating human vital signs provided by the present invention further includes a second total air volume adjusting component 5 connected to the first airbag 11. The second total air volume adjusting assembly 5 may include a second air plenum coupled to the first air bag 11 and having a pressure relief valve. Due to the individual differences of the human body, in order to allow the breathing simulation unit 2 and the heartbeat simulation unit 3 to simulate vital signs of different human bodies, the first airbag 11, the third airbag 21, and the fourth airbag can be adjusted by the second total air volume adjusting assembly 5. The total amount of gas in 31. It should be understood that since the first airbag 11, the third airbag 21, and the fourth airbag 31 are connected by the second air duct and the third air duct, the air pressures in the first airbag 11, the third airbag 21, and the fourth airbag 31 are The same, that is, the second total air volume adjusting component 5 is connected to any airbag, and is also connected to other airbags. Therefore, the second total air volume adjusting component 5 is disposed only in the first airbag 11 and the third airbag 21 The position of the connection with one of the four airbags 31 is sufficient, and a person skilled in the art can make a selection according to needs, which is not limited herein.

In addition, in order to improve the consistency and reliability of the test results of the friction sensing test device simulating the vital signs of the human body provided by the present invention, the friction sensing test package simulating the vital signs of the human body further includes a second connected to the first airbag 11 Pressure monitoring device 6. Since the first airbag 11, the third airbag 21, and the fourth airbag 31 are connected by the second air duct and the third air duct, the air pressures in the first airbag 11, the third airbag 21, and the fourth airbag 31 are the same, and therefore, Two pressure supervisor The measuring device 6 can accurately monitor the pressures in the first airbag 11, the third airbag 21 and the fourth airbag 31 to ensure that the friction sensing device simulating the vital signs of the human body under the same test conditions, the first airbag 11, The pressures in the third air bag 21 and the fourth air bag 31 are kept constant, thereby ensuring consistency, accuracy, and reliability of the test results. Preferably, the second pressure monitoring device 6 may be a mechanical barometer or an electronic barometer or the like that displays readings.

In summary, the friction sensing test device for simulating human vital signs provided by the present invention can realize the controllable force of frequency and intensity on the frictional power generation sensor, so that the output of the frictional power sensor and the applied force are Corresponding test signal; at the same time, the start time of breathing and heartbeat can be set arbitrarily, thereby controlling the synchronism of breathing and heartbeat, which makes the test result more realistically reflect the vital vital signs such as the simulated human body's breathing and heartbeat. .

It should be understood that, when simultaneously simulating human breathing and heartbeat, the vital sign simulation unit in the friction sensing test device for simulating human vital signs provided by the present invention must include both the respiratory simulation unit 2 and the heartbeat simulation unit 3, and the breathing simulation The unit 2 and the heartbeat simulation unit 3 work simultaneously; when only the human body breathing is simulated, the vital sign simulation unit in the friction sensing test device for simulating human vital signs provided by the present invention may include only the breathing simulation unit 2 and operate it. It is also possible to include both the breathing simulation unit 2 and the heartbeat simulation unit 3, and only operate the breathing simulation unit 2; the living sign simulation unit in the friction sensing test device for simulating human vital signs provided by the present invention when only the human heartbeat is simulated. The heartbeat simulation unit 3 may be included and operated, and may include both the breath simulation unit 2 and the heartbeat simulation unit 3, and only the heartbeat simulation unit 3 is operated. A person skilled in the art can make a selection according to needs, which is not limited herein.

In addition, in the present invention, the contact or separation of the two surfaces constituting the friction interface in the physiological monitoring sensor belt 4 includes not only the contact or separation that can be seen by the human eye in a macroscopic concept, but also the microscopic concept that the human eye cannot see. Contact or separation.

It should be noted that when the friction sensing test device for simulating human vital signs provided by the present invention is used, the signal output end of the physiological monitoring sensor strip 4 is connected with a signal acquisition processing device (such as a digital oscilloscope), thereby obtaining the first The airbag 11 applies a corresponding electrical signal generated on the physiological monitoring sensor strip 4.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. The scope is intended to be included within the scope of the claims and the description of the invention.

Claims (44)

1. A friction sensing test device for simulating vital signs of a human body, comprising:

   First rack

   a sample stage disposed on the first frame and a first air bag, and a receiving space is formed between the sample stage and the first air bag, and a friction generating type sensor may be disposed in the receiving space;

   An air drive unit coupled to the first air bag;

   Wherein the air drive unit is configured to repeatedly change the amount of inflation in the first air bag such that the two friction surfaces of the frictional power sensor can be contacted and separated.
2. A friction sensing test apparatus according to claim 1, wherein said air drive unit includes a second air bag in communication with said first air bag, and is capable of carrying and repeatedly squeezing said second air bag to change a first driving mechanism for the amount of inflation in the first airbag; wherein the first airbag and the second airbag are in communication through a first air guiding tube.
3. The friction sensing test apparatus according to claim 2, wherein said first driving mechanism comprises a second frame capable of carrying said second air bag and eccentrically rotatably disposed on said second frame a first rotating member, the first rotating member can repeatedly press the second air bag, and the second air bag is squeezed to bring a part of the internal gas into the first air bag through the first air pipe .
4. The friction sensing test apparatus according to claim 3, wherein the first rotating member is a cam or an eccentric.
5. The friction sensing test apparatus according to claim 4, wherein said first rotating member has an elliptical cross section, said elliptical long radius is 20-25 mm, and short radius is 18-22 mm, and The long radius is greater than the short radius.
6. The friction sensing test apparatus according to any one of claims 3 to 5, wherein a plurality of the second airbags are provided spaced apart on an outer circumference of the first rotating member a raised.
7. The friction sensing test apparatus according to claim 5 or 6, wherein the first projection is a semi-cylindrical body having a center of the elliptical shape and having a radius of 3-5 mm.
8. The friction sensing test apparatus according to claim 7, wherein the number of the semi-cylinders is two, and a center line between the two semi-cylinders passes through a center of the ellipse, and Forming an angle of 20-40 degrees with the long radius.
9. The friction sensing test apparatus according to claim 3, wherein said first driving mechanism further comprises a first buffer type actuator disposed between said first rotating member and said second air bag, such that The first rotating member is capable of repeatedly pressing the second airbag by driving the first buffer actuator.
10. The friction sensing test apparatus according to claim 9, wherein said first buffer type actuator comprises a first transmission plate and a second transmission plate which are sequentially away from said first rotating member, and are provided in said a first elastically stretchable member between the first drive plate and the second drive plate.
11. The friction sensing test apparatus according to claim 10, wherein said first buffering actuator further comprises a first guiding rod, one end of said first guiding rod is extending through said first elastically extending member Fixed to the second drive plate, and the other end slidably penetrates the first drive plate.
12. A friction sensing test apparatus according to any one of claims 3 to 5, wherein the second frame includes a first stage for carrying the second air bag and is vertically disposed at a first support plate on the first stage, the first rotating member is eccentrically rotatably disposed on the first support plate by a first rotating shaft, and the first rotating shaft is parallel to the first stage The first rotating source is disposed on the first stage and connected to the first rotating shaft.
13. The friction sensing test apparatus according to any one of claims 3 to 5, wherein the first driving mechanism further includes a first rotation source provided on the second frame, the first The source of rotation provides power to the first rotating member.
14. The friction sensing test apparatus according to any one of claims 1 to 5, further comprising a first total air volume adjusting assembly connected to the first airbag or the second airbag.
15. The friction sensing test apparatus according to claim 14, wherein said first total air volume adjusting assembly comprises a first plenum coupled to said first air bag or said second air bag and having a pressure relief valve Airbag.
16. A friction sensing test apparatus according to any one of claims 1 to 5, characterized in that The first frame includes a bottom plate and a top plate, and a supporting side plate disposed between the bottom plate and the bottom plate, and one of the sample stage and the first air bag is connected to the top plate, and two The other is connected to the bottom plate.
17. A friction sensing test device for simulating vital signs of a human body, comprising: a test unit and a vital sign simulation unit; wherein

    The test unit includes: a first airbag and a first frame; wherein the first airbag is disposed inside the first frame, and a force generated by expanding or contracting thereof is applied to the friction power sensor Forming an accommodation space between the first airbag and the first frame or between the first airbag and the plane of the friction sensing test device simulating the vital signs of the human body, in the accommodation space Provided with the frictional power generation type sensor, the frictional power generation type sensor is placed on a plane of placement of the first frame or the friction sensing test device simulating human vital signs;

    The vital sign simulation unit includes: a breathing simulation unit and/or a heartbeat simulation unit; wherein the breathing simulation unit is connected to the first airbag in the testing unit for simulating a human body respiratory frequency and respiratory intensity, Applying a force generated by expanding or contracting the first airbag to the frictional power generation type sensor; the heartbeat simulation unit is connected to the first airbag in the test unit for simulating a heartbeat frequency of a human body And a heartbeat strength to apply a force generated by expansion or contraction of the first airbag to the frictional power sensor.
18. The apparatus according to claim 17, wherein said respiratory frequency and said heartbeat frequency satisfy a set requirement of a preset respiratory frequency and a preset heartbeat frequency; and/or said respiratory intensity and said heartbeat intensity satisfy Preset breath intensity and preset heartbeat intensity settings.
19. The device according to claim 17, wherein the test unit further comprises: a sample stage disposed inside the first frame; wherein

    An accommodation space is formed between the first airbag and the sample stage, and the frictional power generation type sensor is disposed in the accommodation space, and the frictional power generation type sensor is placed on the sample stage.
20. The apparatus according to claim 17, wherein said breathing simulation unit comprises: a third airbag that communicates with said first airbag through a second air duct, and is capable of carrying and repeatedly squeezing said third airbag A second drive mechanism that changes the amount of inflation in the first air bag.
21. The apparatus according to claim 20, wherein said second drive mechanism comprises: a third frame capable of carrying said third air bag, and a second rotation rotatably disposed on said third frame And a second source of rotation disposed on the third frame; wherein

    The second rotating member can repeatedly press the third airbag, and the third airbag is squeezed to bring a part of the internal gas into the first airbag through the second air guiding tube;

    The second source of rotation is coupled to the second rotating member for providing power to the second rotating member to rotate the second rotating member.
22. The apparatus according to claim 21, wherein said second rotating member comprises a second rotating shaft rotatably disposed on said third frame, and a first wheel disposed on said second rotating shaft The second rotating shaft is capable of driving the first rotating body to rotate under the driving of the second rotating source.
23. The apparatus according to claim 22, wherein said first wheel has an elliptical cross section; wherein said ellipse has a major axis radius of 12-14 mm, said elliptical short axis radius It is 9-11mm.
24. The apparatus according to claim 22, wherein said second drive mechanism further comprises: a second buffer actuator disposed between said second rotating member and said third airbag; The second buffering actuator is configured to repeatedly press the second cushioning actuator to press the third airbag under the driving of the second rotating member.
25. The apparatus according to claim 24, wherein said second buffer actuator includes a third drive plate and a fourth drive plate that are sequentially away from said second rotary member, and are disposed on said third drive plate And a second elastically stretchable member between the fourth drive plate.
26. The device according to claim 25, wherein said second buffer actuator further comprises a plurality of second guide bars; wherein one end of said second guide bar extends through said second elastically stretchable member Fixed on the fourth drive plate, another of the second guide bars The end slidably penetrates the third transmission plate.
27. The apparatus according to claim 24, wherein said third frame includes a second stage for carrying said third air bag and a second one vertically disposed on said second stage a support plate; wherein the first wheel is rotatably disposed on the second support plate by the second rotating shaft, and the second rotating shaft is parallel to the second stage.
28. The apparatus according to claim 27, wherein said second drive mechanism further comprises: at least one first limit bar extending through said second support plate; wherein said first limit bar is located in said An upper portion of the second buffer actuator for defining a rebound position of the second buffer actuator.
29. The apparatus according to claim 17, wherein said heartbeat simulation unit comprises: a fourth airbag communicating with said first airbag through a third air duct, and capable of carrying and repeatedly squeezing said fourth airbag A third drive mechanism that changes the amount of inflation in the first air bag.
30. The apparatus according to claim 29, wherein said third drive mechanism comprises: a fourth frame capable of carrying said fourth air bag, and a third rotation rotatably disposed on said fourth frame And a third source of rotation disposed on the fourth frame; wherein

    The third rotating member is capable of repeatedly pressing the fourth air bag, and the fourth air bag is pressed, and a part of the gas inside thereof enters the first air bag through the third air guiding tube;

    The third rotating source is coupled to the third rotating member for powering the third rotating member to rotate the third rotating member.
31. The apparatus according to claim 29, wherein said third rotating member comprises a third rotating shaft rotatably disposed on said fourth frame, and a second wheel disposed on said third rotating shaft The third rotating shaft is capable of driving the second rotating body to rotate under the driving of the third rotating source.
32. The device according to claim 31, wherein said second wheel has an elliptical or circular cross section; wherein said elliptical has a major axis radius of 10-12 mm, said elliptical The minor axis has a radius of 9-11 mm; the radius of the circle is 9-11 mm.
33. The device according to claim 32, wherein said second wheel A plurality of second protrusions for pressing the fourth air bag are spaced apart on the outer peripheral surface.
34. The apparatus according to claim 33, wherein said second projection is a semi-cylindrical body having a center of a cross section of said second wheel body and having a radius of 1-2 mm.
35. The device according to claim 34, wherein the number of said semi-cylinders is two; wherein a center line between said two semi-cylinders passes through a cross section of said second wheel The center of the circle.
36. The apparatus according to claim 31, wherein said third driving mechanism further comprises: a third buffer actuator disposed between said third rotating member and said fourth airbag; The third buffering actuator is configured to cause the third buffering actuator to repeatedly press the fourth airbag under the driving of the third rotating member.
37. The apparatus according to claim 36, wherein said third buffer type actuator comprises a fifth transmission plate and a sixth transmission plate which are sequentially away from said third rotary member, and are disposed on said fifth transmission plate And a third elastically stretchable member between the sixth drive plate.
38. The apparatus according to claim 37, wherein said third buffer actuator further comprises a plurality of third guide bars; wherein one end of said third guide bar extends through said third elastically stretchable member Fixed to the sixth transmission plate, the other end of the third guiding rod slidably penetrates the fifth transmission plate.
39. The apparatus according to claim 36, wherein said fourth frame includes a third stage for carrying said fourth air bag and a third vertically disposed on said third stage a support plate; wherein the second wheel is rotatably disposed on the third support plate by the third rotating shaft, and the third rotating shaft is parallel to the third stage.
40. The apparatus according to claim 39, wherein said third drive mechanism further comprises: at least one second limit rod extending through said third support plate; wherein said second limit bar is located in said An upper portion of the third buffer actuator for defining a rebound position of the third buffer actuator.
41. The device of claim 17 further comprising a second total air volume adjustment assembly coupled to said first air bag.
42. The device according to claim 41, wherein said second total volume is adjusted The integral assembly includes a second air plenum coupled to the first bladder and having a pressure relief valve.
43. The device of claim 17 further comprising a second pressure monitoring device coupled to said first bladder.
44. The apparatus according to claim 17, wherein said first frame comprises a bottom plate, a top plate, and a supporting side plate disposed between said top plate and said bottom plate; said first air bag being fixedly disposed at said On the top plate.

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