Millimeter wave breathing, heartbeat and body movement simulation device

Abstract

The utility model discloses a millimeter wave breathing, heartbeat and body movement simulation device, which comprises an air source, human-simulated skin and an outer air bag connected with the air source, the human-simulated skin is attached to the outer wall of the outer air bag, and a supporting piece used for supporting the outer air bag to simulate different body types is arranged in the outer air bag. The air source circularly blows and sucks air, so that the outer air bag circularly expands and contracts relative to the supporting piece to fluctuate, and breathing or heartbeat of the human body is simulated. The utility model has the advantages that the waveform obtained by simulating the human skin is similar to the waveform generated by the human body, so that the relationship between the simulated human body breath and the millimeter wave waveform can be accurately reflected. The outer air bag is supported by the supporting piece in the initial state, people of different body types can be simulated, and when the outer air bag shrinks, clutter interference caused by mutual friction of the inner wall faces of the outer air bag is prevented.

Description

Technical Field

[0001] The utility model relates to a simulation device, in particular to a simulation device for millimeter-wave respiration, heartbeat and body movement. Background Art

[0002] Monitoring the micro-movement of the human abdomen and heart with millimeter waves, obtaining the respiration rate and heartbeat rate of the human body, so as to obtain the health status and sleep state of the human body is a relatively mainstream non-invasive monitoring application at present. This method mainly utilizes the reflection of the human body to electromagnetic waves. When the human body moves, due to the existence of the Doppler effect, the radar will receive different reflected wave signals. After processing, the radar waveform characteristics of the movement are obtained, so as to obtain data such as the presence of the human body, respiration rate, and heartbeat rate.

[0003] For the monitoring of body movement by millimeter waves, there is currently no very direct simulation test method. The existing millimeter-wave respiration and heartbeat function tests generally use real-person tests or mechanical devices such as balloons and eccentric wheels for testing.

[0004] When using real-person tests, many conditions will be restricted. For example, it will take up the time of the tested person, increase the extra labor cost expenditure, and due to human factors, it is difficult to accurately control the amplitude and frequency. To simulate different amplitudes and frequencies, different real-person data need to be collected. At the same time, when testing infants and young children, only normal state data can be collected, and abnormal states cannot be tested. For example, the monitoring of apnea cannot be tested at all.

[0005] When using mechanical devices for testing, the millimeter-wave reflection characteristics of the test materials (such as balloons, etc.) are different from those of human tissues, resulting in a large difference between the obtained waveform and the human waveform, and it cannot correctly reflect the relationship between human respiration and millimeter-wave waveform. The mechanical device test can only test whether the indicators of the millimeter-wave radar chip itself are qualified, and cannot test whether the application for human micro-movement is qualified. Content of the Utility Model

[0006] The purpose of the utility model is to provide a simulation device for millimeter-wave respiration, heartbeat and body movement, which can effectively solve the problem that the relationship between human respiration and millimeter-wave waveform cannot be correctly reflected during the existing mechanical device test.

[0007] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] A simulation device for millimeter-wave respiration, heartbeat and body movement, comprising a gas source, a humanoid skin and an outer airbag connected to the gas source. The humanoid skin is attached to the outer wall of the outer airbag. A support member for supporting the outer airbag to simulate different body shapes is arranged inside the outer airbag. The gas source circulates air to blow and suck gas, so that the outer airbag expands and contracts cyclically relative to the support member to generate undulations, simulating human respiration or heartbeat.

[0009] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the support member with adjustable volume is arranged in the outer airbag.

[0010] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the support member is an inner airbag, and the air source blows air between the inner airbag and the outer airbag to form an air cavity between the inner airbag and the outer airbag.

[0011] In the above millimeter-wave breathing, heartbeat and body movement simulation device, an air nozzle for inflating the inner airbag to change the volume of the inner airbag is provided on the inner airbag.

[0012] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the air source includes a power member and a cylinder, the power member drives the cylinder to reciprocate, and the cylinder is communicated with the outer airbag.

[0013] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the power member is a push rod motor.

[0014] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the power member includes a motor and a crank-slider mechanism, and the crank-slider mechanism is connected between the motor and the cylinder.

[0015] In the above millimeter-wave breathing, heartbeat and body movement simulation device, a three-way joint is further provided on the pipeline between the cylinder and the outer airbag, and the three-way joint is also connected with an air valve through a pipeline.

[0016] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the humanoid skin is animal skin, tissue-engineered skin or ionic skin.

[0017] In the above millimeter-wave breathing, heartbeat and body movement simulation device, the outer airbag is a double-opening balloon.

[0018] Compared with the prior art, the advantages of the present utility model are:

[0019] By attaching a human - like skin to the outer wall of the outer airbag, the problem that the existing mechanical device cannot correctly reflect the relationship between human breathing and millimeter - wave waveform during testing is solved. The human - like skin has electromagnetic characteristics similar to those of the human body. When the radar wave of the millimeter - wave radar irradiates the human - like skin for human breathing testing, the obtained waveform is approximate to the waveform generated by the human body, so that the relationship between simulated human breathing and millimeter - wave waveform can be accurately reflected. Then, by continuously blowing and sucking gas into the outer airbag through the gas source, the outer airbag is controlled to expand and contract cyclically, imitating the reciprocating undulating movement of the chest and abdomen skin caused by human breathing or heartbeat, so that the outer airbag simulates the frequency of human breathing or heartbeat, and detects whether the millimeter - wave monitor is qualified for human micro - motion applications. In addition, a support member is added inside the outer airbag. By supporting the outer airbag in the initial state through the support member, different body types of people can be simulated. And when the outer airbag shrinks, it prevents the inner wall surfaces of the outer airbag from rubbing against each other to generate clutter interference.

[0020] Furthermore, the support member is arranged inside the outer airbag with adjustable volume. Since the support member plays a supporting role for the outer airbag, by adjusting the volume of the support member, the outer airbag can be further expanded to simulate more different body types.

[0021] Furthermore, the support member is an inner airbag. The gas source blows air between the inner airbag and the outer airbag, so that an air cavity is formed between the inner airbag and the outer airbag. The volume of the inner airbag is controlled by inflation, so that the overall profile of the outer airbag it supports also changes correspondingly. Thus, it can conveniently adjust and simulate the inner support of different human body types. And an air cavity is formed between the inner airbag and the outer airbag. Since the support member is an inner airbag, it will occupy the internal space of the outer airbag, making the adjustable volume inside the outer airbag smaller. After filling a unit amount of gas, the change of the outer airbag will be more obvious and the change rate will be faster.

[0022] Furthermore, the inner airbag is provided with an air nozzle for inflating the inner airbag to change the volume of the support member. By adjusting the air pressure in the inner airbag through the air nozzle, the volume of the inner airbag can be adjusted, and then different human body types can be imitated.

[0023] Furthermore, the gas source includes a power member and a cylinder. The power member drives the cylinder to reciprocate, and the cylinder is connected to the outer airbag. For a relatively simple gas source, the power member drives the cylinder to blow and suck the outer airbag, which is convenient for controlling the blowing and sucking frequency and undulating amplitude of the outer airbag, and simulating different human breathing and / or heartbeat conditions.

[0024] Furthermore, the power member is a push - rod motor. The push - rod motor has high integration and low failure rate, and can drive the cylinder to reciprocate more conveniently.

[0025] Further, the power member includes a motor and a crank-slider mechanism, and the crank-slider mechanism is connected between the motor and the cylinder. In another structural form of the power member, the state of the outer airbag can be controlled by adjusting the motor speed and the amplitude of the crank-slider mechanism respectively.

[0026] Further, a three-way joint is also provided on the pipeline between the cylinder and the outer airbag, and the three-way joint is also connected with a gas valve through a pipeline. By connecting the gas valve through the three-way joint, the entry and exit of external gas can be controlled, so as to control the gas volume when the outer airbag simulates breathing.

[0027] Further, the humanoid skin is animal skin, tissue-engineered skin or ionic skin. These humanoid skins have a high similarity in radar wave characteristics with human skin, which can improve the accuracy of the millimeter-wave monitor test.

[0028] Further, the outer airbag is a double-opening balloon. The double-opening balloon can quickly realize inflation and deflation, and improve the range of the outer airbag simulating human breathing or heartbeat. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of a millimeter-wave breathing, heartbeat and body movement simulation device of the present utility model;

[0030] Figure 2 is a cross-sectional view of the outer airbag in a millimeter-wave breathing, heartbeat and body movement simulation device of the present utility model.

[0031] The reference numerals are:

[0032] Outer airbag 1, humanoid skin 2, support member 3, air cavity 4, power member 5, cylinder 6, three-way joint 7, gas valve 8. Detailed Embodiment

[0033] A millimeter-wave breathing, heartbeat and body movement simulation device includes a gas source, a humanoid skin 2 and an outer airbag 1 connected to the gas source. The humanoid skin 2 is attached to the outer wall of the outer airbag 1. A support member 3 for supporting the outer airbag 1 to simulate different body shapes is arranged inside the outer airbag 1. The gas source circulates to blow and suck gas, so that the outer airbag 1 expands and contracts cyclically relative to the support member 3 to generate undulations, simulating human breathing or heartbeat.

[0034] By applying a human-like skin 2 on the outer wall of the outer airbag 1, the problem that the existing mechanical device cannot correctly reflect the relationship between human respiration and millimeter-wave waveform during testing is solved. The human-like skin 2 has electromagnetic characteristics similar to those of the human body. When the radar wave of the millimeter-wave radar irradiates the human-like skin 2 for human respiration testing, the obtained waveform is approximate to the waveform generated by the human body, so that the relationship between simulated human respiration and millimeter-wave waveform can be accurately reflected. Then, by continuously blowing and sucking gas into the outer airbag 1 through a gas source, the outer airbag 1 is controlled to expand and contract cyclically, imitating the reciprocating undulating motion of the chest and abdomen skin caused by human respiration or heartbeat, so that the outer airbag 1 simulates the frequency of human respiration or heartbeat, and it is detected whether the millimeter-wave monitor is qualified for human micro-motion applications. In addition, a support member 3 is added inside the outer airbag 1. By supporting the outer airbag 1 in the initial state through the support member 3, people of different body types can be simulated, and when the outer airbag 1 shrinks, the inner wall surfaces of the outer airbag 1 are prevented from rubbing against each other to generate clutter interference.

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Refer to Figure 1 、 Figure 2 As an embodiment of a millimeter-wave breathing, heartbeat and body movement simulation device of the present utility model, the millimeter-wave breathing, heartbeat and body movement simulation device includes a gas source and an outer airbag 1 connected to the gas source. The gas source is mainly used to supply gas to the airbag and control the cyclic expansion and contraction of the outer airbag 1, imitating the reciprocating undulation movement of the chest and abdomen skin caused by human breathing or heartbeat, so that the outer airbag 1 simulates human breathing or heartbeat.

[0040] A human-like skin 2 is attached to the outer wall of the outer airbag 1. After the millimeter wave emitted by the millimeter-wave monitor is reflected by the human-like skin 2, a reflection signal close to the radar wave of the human skin can be obtained, so as to test whether the millimeter-wave monitor is qualified for detecting human micro-movements.

[0041] There is also a support member 3 for supporting the outer airbag 1 to simulate different body types inside the outer airbag 1. Different forms of the support member 3 are used to simulate the body types of children or adults. On the basis of this body type, the outer airbag 1 performs breathing or heartbeat simulation to detect whether the millimeter-wave monitor is qualified for monitoring patients with different body types. In addition, after the outer airbag 1 exhales gas, due to the support of the support member 3, the inner side walls of the outer airbag 1 will not rub against each other, avoiding the generation of interference waves caused by the mutual friction of the inner side walls of the outer airbag 1 and ensuring the accuracy of the detection data of the millimeter-wave monitor.

[0042] The support member 3 can be set with a fixed volume inside the outer airbag 1, or can be set with an adjustable volume inside the outer airbag 1, so as to facilitate the simulation of human bodies with a variety of different physiques. The following takes the support member 3 with an adjustable volume set inside the outer airbag for introduction, including but not limited to the following structural forms of the support member 3:

[0043] The support member 3 is an inner airbag, and the inner airbag is disposed inside the outer airbag 1. The air source blows air between the outer airbag 1 and the support member 3, and an air chamber 4 is formed between the support member 3 and the outer airbag 1 to simulate the state during human breathing. Through the inner airbag, the outer airbag 1 can be comprehensively supported, and the control method of the inner airbag is relatively simple. By injecting gas into the inner airbag, the deformation amount of the inner airbag can be controlled to simulate different body shapes. Since the inner airbag is disposed inside the outer airbag 1, the internal space of the outer airbag 1 is occupied by the inner airbag, making the variable space of the outer airbag 1 smaller, and the outer airbag 1 can be adjusted more quickly. To maintain the stability of the change of the outer airbag 1 during the air blowing and suction of the air source, the inner airbag is a closed structure. Alternatively, the support member 3 is an elastic inner airbag, such as made of elastic rubber. An air nozzle is provided on the support member 3, and the air pressure inside the support member 3 is controlled through the air nozzle, so that the volume size of the support member 3 can be controlled, and different human body shapes can be simulated. For example, when more gas is filled, the support member 3 will expand and its volume will become larger, and the outline of the outer airbag 1 supported by it will also become larger accordingly, which can simulate the body shape of a strong build; when less gas is filled, the volume of the support member 3 becomes relatively smaller, and the outline of the outer airbag 1 supported by it will also become smaller accordingly, which can simulate the body shape of a thin build.

[0044] In addition to being an inner airbag, the support member 3 can also be a support structure, such as an umbrella bone support structure, which simulates the bones of different body shapes through different opening angles, supports the change of the outline of the outer airbag 1, and then simulates different body shapes.

[0045] On the basis of the above embodiments, the air source includes a power member 5 and a cylinder 6. The power member 5 drives the cylinder 6 to reciprocate, and the cylinder 6 is communicated with the outer airbag 1 to control the expansion or contraction of the outer airbag 1. The suction and discharge movement mode of the cylinder 6 is relatively stable and reliable, and has a fast response speed, and can control the outer airbag 1 to approach the change frequency of human breathing or heartbeat.

[0046] The specific form of the power member 5 includes but is not limited to the following structures:

[0047] One is that the power member 5 is a push rod motor. The push rod motor can generate a linear reciprocating motion, match the linear reciprocating motion of the cylinder 6, and has a high driving efficiency. Moreover, the push rod motor has a high integration degree and a small volume, and can reduce the volume of the simulation device.

[0048] The other is that the power member 5 includes a motor and a crank-slider mechanism. The motor drives the crank-slider mechanism to rotate, and the crank-slider mechanism converts the rotation into a linear reciprocating motion to push the cylinder 6 to blow and suck the outer airbag 1 in a cycle. The crank-slider mechanism has a relatively simple structure and high reliability, which is beneficial to reducing the manufacturing cost of the entire simulation device.

[0049] By adjusting the voltage of the supply air source, the rotational speed of the motor can be controlled to simulate different breathing or heart rate frequencies. By adjusting the movement amplitude of the crank-slider mechanism or the push rod motor, the amount of air blown into or sucked out of the outer airbag 1 per stroke can be controlled to simulate different movement amplitudes of the human body.

[0050] Furthermore, a tee joint 7 is provided in the connection management between the cylinder 6 and the outer airbag 1. The tee joint 7 is also connected to an air valve 8 through a pipeline. The air valve 8 controls the inflow and outflow of external gas to control the air volume in the outer airbag 1.

[0051] In this embodiment, the humanoid skin 2 can be made of animal skin, such as pig skin, cow skin and other animal skin materials, or can also be made of artificial humanoid skin 2 such as tissue engineering skin or ionic skin, and the millimeter wave reflection characteristics close to those of human skin can be obtained. The outer airbag 1 can also be a double-opening balloon, with openings provided at both the head and the tail of the outer airbag 1 to quickly realize inflation and deflation, and improve the range of the outer airbag 1 to simulate human breathing or heartbeat.

[0052] Before the test, first adjust the size of the support member 3 according to the test purpose to simulate different test body shapes, then adjust the parameters of the air source, that is, the amount and frequency of the air blown into or sucked out of the outer airbag 1, to simulate different human conditions, and then use a millimeter wave monitor to detect the humanoid skin 2. The monitoring data of the millimeter wave monitor is compared with the standard test data to check whether the millimeter wave monitor meets the design requirements. Through the simulation device of the above solution, different breathing or heartbeat conditions of the human body can be accurately simulated, different test scenarios can be conveniently set, and the millimeter wave monitor can be accurately detected.

[0053] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A millimeter-wave breathing, heartbeat, and body movement simulation device, comprising a gas source and an outer airbag connected to the gas source, characterized in that, It further includes a humanoid skin, which is attached to the outer wall of the outer airbag. A support member for supporting the outer airbag to simulate different body shapes is provided inside the outer airbag. The air source circulates air to blow and suck, causing the outer airbag to expand and contract cyclically relative to the support member to generate undulations, simulating human breathing or heartbeat.

2. The simulation device for millimeter-wave respiration, heartbeat and body movement according to claim 1, characterized in that The support member is adjustably arranged inside the outer airbag.

3. The simulation device for millimeter-wave respiration, heartbeat and body movement according to claim 2, characterized in that, The support member is an inner airbag. The air source blows air between the inner airbag and the outer airbag to form an air cavity between the inner airbag and the outer airbag.

4. The analog device for millimeter-wave respiration, heartbeat and body movement according to claim 3, characterized in that An air nozzle for inflating the inner airbag to change the volume of the inner airbag is provided on the inner airbag.

5. The simulation device for millimeter-wave respiration, heartbeat and body movement according to claim 1, characterized in that The air source includes a power member and a cylinder. The power member drives the cylinder to reciprocate, and the cylinder is communicated with the outer airbag.

6. The simulation device for millimeter-wave respiration, heartbeat, and body movement according to claim 5, wherein The power member is a push rod motor.

7. An analog device for millimeter-wave respiration, heartbeat and body movement according to claim 5, characterized in that, The power member includes a motor and a crank-slider mechanism, and the crank-slider mechanism is connected between the motor and the cylinder.

8. The simulation device for millimeter-wave respiration, heartbeat and body movement according to claim 5, wherein, A three-way joint is further provided on the pipeline between the cylinder and the outer airbag, and the three-way joint is also connected with an air valve through a pipeline.

9. A millimeter-wave breathing, heartbeat and body movement simulation device according to claim 1, characterized in that, The humanoid skin is animal skin, tissue-engineered skin or ionic skin.

10. The simulation device for millimeter-wave respiration, heartbeat and body movement according to claim 1, characterized in that, The outer airbag is a double-opening balloon.

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