A signal device and method for simulating human heart shock and respiratory vibration

Abstract

The present invention provides a signal device for simulating human heart shock and respiratory vibration, including a vibration signal generator and a vibration simulator that cooperate with each other. The vibration signal generator includes a first electromagnet, a second electromagnet, and an analog signal amplifier. Both the first electromagnet and the second electromagnet are electrically connected to the analog signal amplifier. The vibration simulator includes a counterweight with a certain weight, and a first permanent magnet and a second permanent magnet fixed on the top of the counterweight. A method for simulating signals of vibration caused by human heart shock and respiration is also disclosed, which can simultaneously simulate two or more vibration signals and form a superimposed effect, closer to the real heart shock and respiratory vibration effects, and can test the qualification of a ballistocardiogram device by simulating known vibration signals, reducing errors.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration simulation equipment, and in particular to a signal device and method for simulating human heart impact and respiratory vibration. Background Art

[0002] The pulsation and impact of the heart can cause a series of periodic vibrations in the human body. By using a sensitive instrument to record these signals and then form a waveform diagram, and diagnosing human diseases by observing the waveform diagram, this is the origin of ballistocardiography.

[0003] There are many methods in the prior art for simulating electrical signals in the range of 0.1 Hz to 1000 Hz, but it is relatively difficult to simulate vibration signals. There are mainly the following difficulties. First, the vibration signals of heart rate and respiration are weak. To simulate the amplitude of the vibration signal acting on the device under test, it should be close to the vibration amplitude of the human body due to heart impact and respiration. Second, the vibration signal simulation device itself should not generate other vibration signals except the simulated heart impact and respiratory vibration signals. Finally, in reality, the vibration signals of real human heart impact and respiration are superimposed together, and separate simulation will produce a large error. With the development of ballistocardiogram equipment, there is an urgent need for how to simulate the vibration signals caused by human heart rate and respiration to test whether the ballistocardiogram equipment is qualified. Summary of the Invention

[0004] The purpose of the present invention is to provide a signal device and method for simulating human heart impact and respiratory vibration in view of the deficiencies of the prior art, which can simultaneously simulate two or more vibration signals and form a superimposed effect, be closer to the real heart impact and respiratory vibration effects, and test whether the ballistocardiogram equipment is qualified through the simulated known vibration signals, reducing errors.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A signal device for simulating human heart shock and respiratory vibration, characterized in that: it includes a vibration signal generator and a vibration simulator that cooperate with each other. The vibration signal generator includes a first electromagnet, a second electromagnet and an analog signal amplifier. Both the first electromagnet and the second electromagnet are electrically connected to the analog signal amplifier. The vibration simulator includes a counterweight with a certain weight and a first permanent magnet and a second permanent magnet fixed on the top of the counterweight. During operation, the first permanent magnet is located directly below the first electromagnet, and the second permanent magnet is located directly below the second electromagnet; after the first electromagnet and the second electromagnet are energized, an electromagnetic coupling is formed between them and the first permanent magnet and the second permanent magnet directly below them. After continuously changing the working state of the analog signal amplifier, the first electromagnet and the second electromagnet respectively simulate electromagnetic waves with the waveform frequencies of heart shock and respiration, and the electromagnetic coupling is transformed into kinetic energy signals on the first permanent magnet and the second permanent magnet. Finally, the counterweight fixedly connected to the first permanent magnet and the second permanent magnet generates vibration signals together. The counterweight generating the vibration signals is placed on the ballistocardiogram device, and the ballistocardiogram device will generate a waveform diagram of the vibration signals of the counterweight. By comparing the known waveform diagram with the waveform diagram generated by the ballistocardiogram device, it can be determined whether the ballistocardiogram device is qualified.

[0007] Optionally, the vibration signal generator further includes a bracket. The analog signal amplifier, the first electromagnet and the second electromagnet are all installed on the bracket. The bracket includes an L-shaped support frame and a bottom plate. The vertical section of the L-shaped support frame is fixedly connected to the bottom plate, and the analog signal amplifier is installed on the top of the horizontal section of the L-shaped support frame; the bracket ensures the stability of the entire vibration signal generator. The L-shaped support frame can have various shapes, which can be right-angled, arc-shaped or irregular.

[0008] Optionally, mounting blocks are provided on the front end surface of the horizontal section of the L-shaped support frame, and the first electromagnet and the second electromagnet are respectively fixedly installed on the left and right sides of the mounting blocks; the L-shaped support frame can fix the first electromagnet and the second electromagnet at a certain height and keep the magnetic poles vertically arranged without being interfered by others.

[0009] Optionally, the first electromagnet and the second electromagnet are connected to the analog signal amplifier through wires or solenoids; both the first electromagnet and the second electromagnet generate magnetism when energized and lose their magnetism when powered off, and the analog signal amplifier is electrically connected to the first electromagnet and the second electromagnet through wires or solenoids, and can simulate more than two vibration signals at the same time and form a superimposed vibration simulation effect.

[0010] Optionally, both the first permanent magnet and the second permanent magnet are polarized permanent magnets, and the magnetic poles of the first electromagnet, the second electromagnet, the first permanent magnet and the second permanent magnet are all vertically arranged; it is ensured that the electrodes between the first electromagnet and the first permanent magnet and between the second electromagnet and the second permanent magnet are opposite, and they can interact with each other.

[0011] A method for simulating signals of vibrations caused by human heart impacts and breathing, characterized by comprising the following steps: turning on a simulation signal amplifier to energize a first electromagnet and a second electromagnet; adjusting electromagnetic waves of the first electromagnet and the second electromagnet to simulate the waveforms and frequencies of heart impacts and breathing respectively, and coupling them to a first permanent magnet and a second permanent magnet to convert them into kinetic energy signals; a counterweight generates vibration signals under the action of the kinetic energy signals, realizing the simulation of vibrations generated by human heart rate and breathing. Since the waveform diagram and the like of the vibration signals simulated by this method are known, they can be used to test whether a cardiogram device is qualified or not.

[0012] Optionally, a method for adjusting the electromagnetic waves of the first electromagnet and the second electromagnet to simulate the waveforms and frequencies of heart impacts and breathing respectively is: changing the magnitude of the electric current of the electric signal emitted by the simulation signal amplifier can change the magnitude of the kinetic energy signals coupled to the first permanent magnet and the second permanent magnet and the vibration signals generated on the counterweight, thereby realizing the change of the strength of the vibration signals.

[0013] Optionally, a method for adjusting the electromagnetic waves of the first electromagnet and the second electromagnet to simulate the waveforms and frequencies of heart impacts and breathing respectively is: changing the direction of the current output by the simulation signal amplifier; changing the direction of the current output by the simulation signal amplifier can control the attraction or repulsion forces generated by the first electromagnet and the second electromagnet on the first permanent magnet and the second permanent magnet.

[0014] Optionally, a method for adjusting the electromagnetic waves of the first electromagnet and the second electromagnet to simulate the waveforms and frequencies of heart impacts and breathing respectively is: simultaneously changing the distance between the first electromagnet and the first permanent magnet and between the second electromagnet and the second permanent magnet, which can affect the electromagnetic coupling effects between the first electromagnet and the first permanent magnet and between the second electromagnet and the second permanent magnet respectively, and can adjust the vibration amplitude of the counterweight.

[0015] Optionally, before turning on the simulation signal amplifier, place the counterweight on the cardiogram device, and move the vibration signal generator so that the first permanent magnet is directly below the first electromagnet, and the second permanent magnet is arranged directly below the second electromagnet. There is a non-contact suspension between the first permanent magnet and the first electromagnet and between the second permanent magnet and the second electromagnet.

[0016] Based on the above, the present invention provides a signal device and method for simulating human heart impacts and breathing vibrations, which can simultaneously simulate two or more vibration signals and form a superimposed effect, being closer to the real heart impact and breathing vibration effects, and testing whether a cardiogram device is qualified or not through the known vibration signals simulated, reducing errors. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a signal device for simulating human heart impacts and breathing vibrations according to an embodiment of the present invention;

[0018] Figure 2 This is a waveform diagram of a detected cardiac impulse and respiratory signal in an embodiment of the present invention;

[0019] Figure 3 This is a waveform diagram of a cardiac impulse and respiratory signal detected by actual measurement on a human body.

[0020] Reference numerals:

[0021] 1 - Vibration signal generator; 2 - Vibration simulator; 3 - First electromagnet; 4 - Second electromagnet; 5 - Analog signal amplifier; 6 - Counterweight; 7 - First permanent magnet; 8 - Second permanent magnet; 9 - Bracket; 10 - L-shaped support frame; 11 - Base plate; 12 - Mounting block. Detailed implementation manners

[0022] Here, an exemplary embodiment will be described in detail, and its examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0023] 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", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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 thus cannot be understood as a limitation of the present invention. 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 indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection capable of mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Without conflict, the technical features in the present invention can be combined with each other.

[0025] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0027] Such as Figures 1 to 3As shown in the figure, a signal device for simulating human heart impact and respiratory vibration according to the present invention includes a vibration signal generator 1 and a vibration simulator 2 that cooperate with each other. The vibration signal generator 1 includes a first electromagnet 3, a second electromagnet 4, and an analog signal amplifier 4. Both the first electromagnet 3 and the second electromagnet 4 are electrically connected to the analog signal amplifier 4. The vibration simulator 2 includes a counterweight 6 with a certain weight, and a first permanent magnet 7 and a second permanent magnet 8 fixed on the top of the counterweight 6. During operation, the first permanent magnet 7 is located directly below the first electromagnet 3, and the second permanent magnet 8 is located directly below the second electromagnet 4. After the first electromagnet 3 and the second electromagnet 4 are energized, an electromagnetic coupling is formed between them and the first permanent magnet 7 and the second permanent magnet 8 directly below them. After continuously changing the working state of the analog signal amplifier 4, the first electromagnet 3 and the second electromagnet 4 respectively simulate electromagnetic waves with the waveform frequencies of heart impact and respiration, and the electromagnetic coupling is transformed into kinetic energy signals on the first permanent magnet 7 and the second permanent magnet 8. Finally, the counterweight 6 fixedly connected to the first permanent magnet 7 and the second permanent magnet 8 generates vibration signals together. The counterweight 6 generating vibration signals is placed on a ballistocardiogram device, and the ballistocardiogram device will generate a waveform diagram of the vibration signals of the counterweight 6. By comparing the known waveform diagram with the waveform diagram generated by the ballistocardiogram device, it can be determined whether the ballistocardiogram device is qualified.

[0028] In some embodiments, the vibration signal generator 1 further includes a bracket 9. The analog signal amplifier 4, the first electromagnet 3, and the second electromagnet 4 are all installed on the bracket 9. The bracket 9 includes an L-shaped support frame 10 and a bottom plate 11. The vertical section of the L-shaped support frame 10 is fixedly connected to the bottom plate 11, and the analog signal amplifier 4 is installed on the top of the horizontal section of the L-shaped support frame 10. The bracket 9 ensures the stability of the entire vibration signal generator 1. The L-shaped support frame 10 can have various shapes, which can be right-angled, arc-shaped, or irregular.

[0029] In some embodiments, mounting blocks 12 are provided on the front end surface of the horizontal section of the L-shaped support frame 10. The first electromagnet 3 and the second electromagnet 4 are respectively and fixedly installed on the left and right sides of the mounting block 12. The L-shaped support frame 10 can fix the first electromagnet 3 and the second electromagnet 4 at a certain height and keep the magnetic poles arranged vertically without being interfered by others.

[0030] In some embodiments, the first electromagnet 3 and the second electromagnet 4 are connected to the analog signal amplifier 4 through wires or solenoids. Both the first electromagnet 3 and the second electromagnet 4 generate magnetism when energized and lose their magnetism after power-off, while the analog signal amplifier 4 is electrically connected to the first electromagnet 3 and the second electromagnet 4 through wires or solenoids.

[0031] In some embodiments, both the first permanent magnet 7 and the second permanent magnet 8 are polarized permanent magnets, and the magnetic poles of the first electromagnet 3, the second electromagnet 4, the first permanent magnet 7 and the second permanent magnet 8 are all vertically arranged; it is ensured that the electrodes between the first electromagnet 3 and the first permanent magnet 7 and between the second electromagnet 4 and the second permanent magnet 8 are opposite, and they can interact with each other.

[0032] A method for simulating signals of vibrations caused by human heart impacts and breathing includes the following steps: turning on the analog signal amplifier 4 to energize the first electromagnet 3 and the second electromagnet 4; adjusting the electromagnetic waves of the first electromagnet 3 and the second electromagnet 4 to simulate the waveforms and frequencies of heart impacts and breathing respectively, and coupling them to the first permanent magnet 7 and the second permanent magnet 8 to be converted into kinetic energy signals; the counterweight 6 generates vibration signals under the action of the kinetic energy signals, realizing the simulation of the vibrations generated by the human heart rate and breathing. Since the waveform diagram, etc. of the vibration signals simulated by this method are known, they can be used to test whether the cardiogram device is qualified or not.

[0033] In some embodiments, a method for adjusting the electromagnetic waves of the first electromagnet 3 and the second electromagnet 4 to simulate the waveforms and frequencies of heart impacts and breathing respectively is: changing the magnitude of the electric current of the electric signal emitted by the analog signal amplifier 4, which can change the magnitude of the kinetic energy signals coupled to the first permanent magnet 7 and the second permanent magnet 8 and the vibration signals generated on the counterweight 6, thereby realizing the change in the intensity of the vibration signals.

[0034] In some embodiments, a method for adjusting the electromagnetic waves of the first electromagnet 3 and the second electromagnet 4 to simulate the waveforms and frequencies of heart impacts and breathing respectively is: changing the direction of the current output by the analog signal amplifier 4; changing the direction of the current output by the analog signal amplifier 4 can control the suction force or repulsive force generated by the first electromagnet 3 and the second electromagnet 4 on the first permanent magnet 7 and the second permanent magnet 8.

[0035] In some embodiments, a method for adjusting the electromagnetic waves of the first electromagnet 3 and the second electromagnet 4 to simulate the waveforms and frequencies of heart impacts and breathing respectively is: simultaneously changing the distance between the first electromagnet 3 and the first permanent magnet 7 and between the second electromagnet 4 and the second permanent magnet 8, which can affect the electromagnetic coupling effect between the first electromagnet 3 and the second electromagnet 4 and the first permanent magnet and the second permanent magnet respectively, and can adjust the vibration amplitude of the counterweight 6.

[0036] In some embodiments, before turning on the analog signal amplifier 4, place the counterweight 6 on the cardiogram device, and move the vibration signal generator 1 so that the first permanent magnet 7 is directly below the first electromagnet 3, and the second permanent magnet 8 is arranged directly below the second electromagnet 4.

[0037] Based on the above, the present invention provides a signal device and method for simulating human heart shock and respiratory vibration, which can simulate more than two vibration signals simultaneously and form a superposition effect, being closer to the real heart shock and respiratory vibration effects, and testing the qualification of ballistocardiogram equipment through the simulated known vibration signals, reducing errors.

[0038] It should be understood that the present application is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A signal device for simulating human heart shock and respiratory vibration, characterized in that: It includes a vibration signal generator and a vibration simulator that work in cooperation with each other. The vibration signal generator includes a first electromagnet, a second electromagnet, and an analog signal amplifier. Both the first electromagnet and the second electromagnet are electrically connected to the analog signal amplifier. The vibration simulator includes a counterweight with a certain weight, and a first permanent magnet and a second permanent magnet fixed on the top of the counterweight. During operation, the counterweight is placed on a ballistocardiogram device. The first permanent magnet is directly below the first electromagnet, and the second permanent magnet is directly below the second electromagnet. The vibration signal generator further includes a bracket. The analog signal amplifier, the first electromagnet, and the second electromagnet are all installed on the bracket. The bracket includes an L-shaped support frame and a bottom plate. The vertical section of the L-shaped support frame is fixedly connected to the bottom plate, and the analog signal amplifier is installed on the top of the horizontal section of the L-shaped support frame. Mounting blocks are provided on the front end surface of the horizontal section of the L-shaped support frame. The first electromagnet and the second electromagnet are respectively and fixedly installed on the left and right sides of the mounting block. Turn on the analog signal amplifier to energize the first electromagnet and the second electromagnet. Adjust to make the first electromagnet and the second electromagnet respectively simulate electromagnetic waves with the waveforms and frequencies of ballistocardiogram and respiration, and couple them to the first permanent magnet and the second permanent magnet to be converted into kinetic energy signals; the counterweight generates vibration signals under the action of the kinetic energy signals.

2. The signal device for simulating human heart impact and respiratory vibration according to claim 1, characterized in that: The first electromagnet and the second electromagnet are connected to the analog signal amplifier through wires or solenoids.

3. A signal device for simulating human heart shock and respiratory vibration according to claim 1, characterized in that: Both the first permanent magnet and the second permanent magnet are polarized permanent magnets, and the magnetic poles of the first electromagnet, the second electromagnet, the first permanent magnet, and the second permanent magnet are all vertically arranged.

4. A method for simulating signals of vibrations caused by human heart impacts and breathing, which is applied to the signal device as described in any one of claims 1-3, characterized in that: Before turning on the analog signal amplifier, place the counterweight on the ballistocardiogram device, and move the vibration signal generator so that the first permanent magnet is directly below the first electromagnet and the second permanent magnet is arranged directly below the second electromagnet.

5. A method for simulating signals of vibration caused by human heart shock and breathing according to claim 4, characterized in that, One method to adjust the first electromagnet and the second electromagnet to respectively simulate electromagnetic waves with the waveforms and frequencies of ballistocardiogram and respiration is: change the current direction output by the analog signal amplifier.

6. A method for simulating signals of vibrations caused by human heart shock and breathing according to claim 4, characterized in that, One method to adjust the first electromagnet and the second electromagnet to respectively simulate electromagnetic waves with the waveforms and frequencies of ballistocardiogram and respiration is: simultaneously change the distance between the first electromagnet and the first permanent magnet and between the second electromagnet and the second permanent magnet.

7. A method for simulating signals of vibrations caused by human heart shock and respiration according to claim 4, characterized in that, One method to adjust the first electromagnet and the second electromagnet to respectively simulate electromagnetic waves with the waveforms and frequencies of ballistocardiogram and respiration is: change the magnitude of the current of the electrical signal emitted by the analog signal amplifier.

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