CN115457828B - Human body respiration heartbeat simulation system - Google Patents
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Abstract
The invention discloses a human body respiration and heartbeat simulation system, which relates to the technical field of medical models and comprises a bed plate and a human body respiration and heartbeat simulation model person clamped at the top of the bed plate, wherein the left end of the bottom of the bed plate is hinged with a bed frame, a human body respiration and heartbeat simulation assembly is arranged in the human body respiration and heartbeat simulation model person, the human body respiration and heartbeat simulation assembly comprises a respiration simulation subsystem, a heartbeat simulation subsystem and respiration and heartbeat curve generation software, a human body respiration and heartbeat curve and even a respiration and heartbeat curve under various disease conditions can be simulated really, the validity and reliability of the system can be verified for non-contact respiration and heartbeat detection equipment, the rotating human body respiration and heartbeat simulation model person can be adjusted at any angle, the human body respiration and heartbeat simulation model person is displayed in multiple directions, students do not need to be too close to the human body respiration and heartbeat simulation model person, and the students can observe and know the human body respiration and heartbeat simulation model person conveniently.
Description
Technical Field
The invention relates to the technical field of medical models, in particular to a human body respiration heartbeat simulation system.
Background
The patent with the application number of 201810042334.3 discloses a device for cardio-pulmonary resuscitation training, which comprises a training model, a sign acquisition module and a data processing and transmitting module, wherein a sternum model in the training model is made of stainless steel elastic battens; sign collection module includes: the compression detection module is arranged on the sternum model and used for sensing the compression pressure applied to the sternum model to generate a compression detection signal; the displacement detection module is arranged on the spine model, corresponds to the position of the pressing detection module, and detects the change of the distance between the sternum model and the spine model to generate a displacement detection signal; the artificial respiration detection module is arranged in the simulated chest cavity and is used for detecting the gas flow in the simulated chest cavity to generate a gas flow detection signal; and the data processing and transmitting module is used for receiving the pressing detection signal, the displacement detection signal and/or the gas flow detection signal, sending the signals to the data processing equipment for analysis and processing, generating monitoring data and/or result data for cardio-pulmonary resuscitation training, and outputting the data.
However, the device for training cardiopulmonary resuscitation also has some problems, and according to the global health estimation report of 2019 issued by the world health organization, among ten causes of death worldwide, 7 are non-infectious diseases. Heart disease has been the leading cause of death worldwide for the past 20 years. The continuous detection of human respiration and heart rate is an important means for discovering potential diseases as soon as possible. In the whole age range, the possible respiratory rate and heart rate variation range of the human body is wide (the respiratory rate range is 7-40 bpm, and the heart rate range is 35-250 bpm), and the verification of the effectiveness and the consistency of the detection equipment in a large range is a troublesome matter. At present, pure signal simulation is more realized for simulating the breathing and heartbeat of a human body, the simulation realization mode cannot verify the performance of the simulation front end of breathing and heartbeat detection equipment, and most devices are horizontally placed on a platform; the student sits that sight can be sheltered from by device self on the seat, need be close to the device around just can observe the condition of knowing the device, can only simulate respiratory in addition, the condition of understanding human heartbeat can not be observed to the student, leads to the device function singleness, inconvenient imparting knowledge to students.
Disclosure of Invention
The present application is directed to a system for simulating the respiration and heartbeat of a human body, so as to solve the problems mentioned in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a human body breathes analog system of heartbeat, including the human body of bed board and bed board top joint breathe the heartbeat simulation model people, the left end of bed board bottom articulates there is the bedstead, the inside of human body breathing the heartbeat simulation model people is provided with human body and breathes the heartbeat simulation subassembly, human body breathes the heartbeat simulation subassembly including breathing simulation subsystem, heartbeat simulation subsystem and breathing heartbeat curve generation software, breathing simulation subsystem and heartbeat simulation subsystem all with breathe heartbeat curve generation software electricity and be connected, the inside top of bedstead articulates there is the transfer line, the top on transfer line surface articulates there is the hinge bar, the bottom of transfer line articulates there is the quarter butt, the left end of quarter butt articulates there is the movable block, the bottom and the inside bottom sliding connection of bedstead of movable block, the left side of movable block articulates there is the regulation pole, the left end of regulation pole articulates with the bottom of bed board, the right-hand member of hinge bar articulates there is adjustment mechanism, adjustment mechanism rotates with the bedstead and cup joints.
By the structure, the simulation equipment simulates the vibration signals of respiration and heart rate and is used for verifying and testing the non-contact respiration and heart rate sensor; the adjusting mechanism can drive the transmission rod to rotate through the hinged rod, the transmission rod can drive the moving block to move through the short rod, the moving block can drive the bed plate to rotate through the adjusting rod, the bed plate can drive the human respiration and heartbeat simulation model person to rotate, and the rotating human respiration and heartbeat simulation model person can not keep lying horizontally any more; the emergence mechanism of the true human heartbeat of imitation, can very true simulation human breathing rhythm of the heart curve, even the breathing rhythm of the heart curve under the various disease circumstances, and present with the form of entity equipment, can realize validity and the reliability verification of system to non-contact breathing heartbeat check out test set, pivoted human breathing heartbeat simulation model people can no longer keep the level to lie, but can arbitrary angle modulation, diversely demonstrate human breathing heartbeat simulation model people, the student also need not too be close to human breathing heartbeat simulation model people, make things convenient for the student to observe understanding human breathing heartbeat simulation model people, and can simulate human heartbeat, increase the function, convenient teaching.
Preferably, the adjusting mechanism comprises a rotating rod, a main bevel gear and an auxiliary bevel gear, two ends of the surface of the rotating rod are rotatably sleeved with the inside of the bed frame, the left end of the rotating rod is bolted with the axis of the right side of the main bevel gear, teeth of the main bevel gear are meshed with teeth of the auxiliary bevel gear, and the adjusting mechanism further comprises a transmission assembly.
Furthermore, the surface of the rotating rod is bolted with a hand wheel, the rotating rod can be rotated through the hand wheel and is arranged in a rotating mode through a bearing and a bedstead, the rotating rod is guaranteed to be stable in rotating, the rotating rod can drive the main bevel gear to rotate, the main bevel gear and the auxiliary bevel gear are bevel gears, the main bevel gear can be meshed with the auxiliary bevel gear, and the main bevel gear can drive the auxiliary bevel gear to rotate.
Preferably, the transmission assembly comprises a worm and a worm wheel disc, the bottom end of the surface of the worm is bolted with the axis of the auxiliary bevel gear, the top end and the bottom end of the worm are rotatably sleeved with the inside of the bedstead, the surface of the worm is meshed with the left side of the worm wheel disc, the axis of the worm wheel disc is rotatably connected with the top end of the right side inside the bedstead, and the right end of the surface of the worm wheel disc is hinged with the right end of the hinge rod.
Further, vice bevel gear can drive the worm and rotate, the worm passes through the bearing and rotates the setting with the bedstead, guarantee worm pivoted stationarity, it rocks to avoid the worm to rotate the in-process appearance, the worm can drive the worm wheel dish and rotate clockwise, the worm wheel dish passes through the bearing and rotates the setting with the bedstead, guarantee worm wheel dish pivoted stationarity, be eccentric structure between worm wheel dish and the hinge bar, the clockwise in-process that rotates of worm wheel dish can drive the hinge bar and move left, conveniently adjust the human body and breathe the heartbeat simulation model people, different inclination's the human body breathe the condition that the heartbeat simulation model people was conveniently observed to the student and know the human body and breathe the heartbeat simulation model people.
Preferably, a support is welded between the right side and the top inside the bedstead, the surface of the support is rotatably connected with the axis of the worm wheel disc, the left end of the surface of the rotating rod is rotatably sleeved with a connecting block, and the bottom of the connecting block is bolted with the right side of the bottom inside the bedstead.
Further, the worm wheel dish passes through the bearing and rotates the setting with the support, and the worm wheel dish passes through the support and rotates the setting with the bedstead, and the support can effectively support the worm wheel dish, and the bull stick passes through the bearing and rotates the setting with the connecting block, and guarantee bull stick pivoted stationarity avoids the bull stick to appear rocking.
Preferably, the respiration simulation subsystem comprises a respiration simulation air bag, a three-way air pipe, an inflation electric pump, a deflation electric pump, a barometer and an MCU (micro control unit), wherein the air inlet end of the respiration simulation air bag is communicated with the air port of the three-way air pipe, the air inlet end of the three-way air pipe is communicated with the air outlet end of the inflation electric pump, the air outlet end of the three-way air pipe is communicated with the air inlet end of the deflation electric pump, the barometer is arranged inside the respiration simulation air bag, and the inflation electric pump, the deflation electric pump and the barometer are all electrically connected with the MCU.
Furthermore, the MCU micro control unit can control the charging electric pump to start through an electric signal, the charging electric pump can inject gas into the inside of the three-way air pipe, the three-way air pipe can inject air into the inside of the respiration simulation air bag, and the MCU micro control unit can control the discharging electric pump through an electric signal. The air pump extracts the air from three-way air pipe, and three-way air pipe can follow the simulation gasbag extraction air of breathing, lets the simulation gasbag inflation vibration of breathing, can effectively simulate, conveniently imparts knowledge to students.
Preferably, the respiration simulation air bag simulates the thoracic cavity of a human body, the respiration simulation air bag simulates the inspiration of the human body when inflated, the respiration simulation air bag simulates the expiration of the human body when deflated, the whole inflation and deflation process simulates the respiration process of the human body, the MCU micro control unit detects the real-time condition of the air pressure value in the respiration simulation air bag by the barometer, the inflation electric pump and the deflation electric pump are controlled to work periodically at a proper inflation and deflation ratio according to the respiration curve set by the respiration heartbeat curve generation software, and the period of inflation and deflation is the respiration period.
Furthermore, the breathing simulation subsystem can effectively simulate the breathing condition of a human body, the simulation is real, and the student can observe and study conveniently.
Preferably, the heartbeat simulation subsystem comprises a heartbeat simulation motor, a counter and an MCU (microprogrammed control unit), the heartbeat simulation motor and the counter are electrically connected with the MCU, the heartbeat simulation motor and the counter are electrically connected, the MCU and the MCU form an MCU control unit, and the output end of the MCU control unit is electrically connected with the input end of the respiration heartbeat curve generation software.
Furthermore, the MCU single chip microcomputer can control the heartbeat simulation motor to rotate, so that the vibration of the heartbeat simulation motor can be consistent with the condition of human heartbeat, and the counter can detect the vibration times of the heartbeat simulation motor.
Preferably, the MCU single chip controls the heartbeat simulation motor to work at a set frequency and a set change rate to simulate the curve and the period of human heartbeat, the counter measures the vibration period and the change rate of the heartbeat simulation motor, and the MCU control unit dynamically adjusts the rotation rate of the heartbeat simulation motor according to the detected vibration period and the change rate of the heartbeat simulation motor fed back by the counter so as to achieve the heart rate curve set by the respiration heartbeat curve generation software.
Furthermore, the condition of human heartbeat can be effectively simulated, and the simulation is relatively real.
Preferably, the respiration and heartbeat curve generation software provides a human-computer interaction interface, can set respiration rate and heart rate parameters, can guide in respiration rate and heart rate change curves, and sends the respiration rate and the heart rate change curves to the MCU control unit through the interface, the MCU control unit sets the respiration rate and the heart rate change curves configured by the respiration and heartbeat curve generation software to perform drive control on the respiration simulation subsystem and the heartbeat simulation subsystem, and the respiration and heartbeat curve generation software can perform big data analysis on the respiration and heartbeat conditions of specific diseases to generate a respiration and heartbeat curve graph with specific disease characteristics so as to simulate the respiration and heartbeat conditions under specific disease conditions.
Furthermore, the respiratory frequency range is generally 7-40 bpm, the heart rate range is 35-250 bpm, the heart rate of the same person is generally more than 4 times of the respiratory rate, the simulation of the heartbeat signal is realized by driving a heartbeat simulation motor through an MCU control unit, the MCU control unit controls and changes the rotating speed of the heartbeat simulation motor in real time to simulate the corresponding heart rate waveform, the simulation of the chest cavity is realized by the process of breathing and inhaling the human body through the inflation and deflation of a respiratory simulation air bag, the method is consistent with the chest respiration principle of a human body in terms of mechanism, has visual verification effect on the non-contact sensor for measuring the respiration of the human body, any periodic signal consists of fundamental frequency sine waves and high frequency sine waves, the frequency of the high frequency sine waves is integral multiple of the fundamental frequency, the fundamental waves are also called first harmonic waves, waveforms more than second harmonic waves are called higher harmonic waves, the steeper the change of the periodic signal is, the higher the energy of the higher harmonic waves is, in order to reduce the influence of higher harmonics of the respiration signal on the heart rate signal, the respiration driving signal is driven by a sine wave, when the period of the driving signal needs to be adjusted, an algorithm controls an air pump to adjust the period of the driving signal at the wave crest and the wave trough of the respiration signal, the period is adjusted at the wave crest and the wave trough without bringing higher harmonics, so that in the whole driving process of respiration, the higher harmonics can be controlled within a smaller energy range, the corresponding signal waveform is detected by the non-contact respiration heart rate sensor and processed by a corresponding filtering mechanism, can obtain ideal respiration heart rate signals, imitate the generation mechanism of the true human respiration and heartbeat, can simulate the human respiration heart rate curve in a very true way, even the respiration heart rate curve under various disease conditions, and is presented in the form of entity equipment, the validity and reliability verification of the system can be realized for the non-contact type respiration and heartbeat detection equipment.
Preferably, the opening is seted up at the top of bedstead, and the left end of adjusting the pole runs through the opening at bedstead top and articulates with the bottom of bed board, and the left end of adjusting the pole upwards inclines to connect.
Further, the opening of bedstead makes things convenient for the activity of adjusting the pole, makes things convenient for the movable block to drive the rotation of bed board through adjusting the pole, conveniently adjusts the inclination of bed board, and the slope of adjusting the pole makes things convenient for the movable block to drive and adjusts the pole and produce ascending power way, conveniently adjusts, and the student of being convenient for observes.
In conclusion, the technical effects and advantages of the invention are as follows:
1. the simulation equipment simulates the vibration signals of respiration and heart rate and is used for verifying and testing the non-contact respiration and heart rate sensor;
2. the adjusting mechanism can drive the transmission rod to rotate through the hinged rod, the transmission rod can drive the moving block to move through the short rod, the moving block can drive the bed plate to rotate through the adjusting rod, the bed plate can drive the human respiration and heartbeat simulation model person to rotate, and the rotating human respiration and heartbeat simulation model person can not keep lying horizontally any more;
imitate the emergence mechanism of true human breathing heartbeat, can be very true simulation human breathing rhythm of the heart curve, even the breathing rhythm of the heart curve under the various disease condition, and present with the form of entity equipment, can realize validity and the reliability verification of system to non-contact breathing heartbeat check out test set, pivoted human breathing heartbeat simulation model people can no longer keep the level flat lying, but can arbitrary angle modulation, diversified show has been carried out to human breathing heartbeat simulation model people, the student also need not too near human breathing heartbeat simulation model people, make things convenient for the student to observe understanding to human breathing heartbeat simulation model people, and can simulate human heartbeat, increase the function, convenient teaching.
Drawings
FIG. 1 is a schematic front view of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an adjustment mechanism according to an embodiment of the present application;
fig. 3 is a schematic rear view of a moving block according to an embodiment of the present application;
FIG. 4 is a schematic perspective view of a main bevel gear according to an embodiment of the present application;
FIG. 5 is a perspective view of a drive link according to an embodiment of the present application;
FIG. 6 is a schematic view of a breath simulation subsystem in accordance with an embodiment of the present application;
fig. 7 is a system block diagram of an embodiment of the present application.
In the figure: 1. a bed board; 2. an adjustment mechanism; 21. a rotating rod; 22. a main bevel gear; 23. a secondary bevel gear; 24. a worm; 25. a worm gear disc; 3. simulating a model person by human breath and heartbeat; 4. a bed frame; 5. a hinged lever; 6. a transmission rod; 7. a short bar; 8. a moving block; 9. adjusting a rod; 10. a breath simulation subsystem; 101. a breath-simulating air bag; 102. a three-way air pipe; 103. an air-filled electric pump; 104. a discharge electric pump; 105. a barometer; 106. an MCU micro control unit; 11. a heartbeat simulation subsystem; 111. a heartbeat simulation motor; 112. a counter; 113. MCU single chip; 12. and (3) generating a respiration and heartbeat curve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, the present embodiment provides a human body respiration and heartbeat simulation system, a human body respiration and heartbeat simulation model person 3 including a bed board 1 and a bed board 1 clamped on top is provided, a bed frame 4 is hinged at the left end of the bottom of the bed board 1, a human body respiration and heartbeat simulation component is provided inside the human body respiration and heartbeat simulation model person 3, the human body respiration and heartbeat simulation component includes a respiration simulation subsystem 10, a heartbeat simulation subsystem 11 and respiration and heartbeat curve generation software 12, the respiration simulation subsystem 10 and the heartbeat simulation subsystem 11 are both electrically connected with the respiration and heartbeat curve generation software 12, a transmission rod 6 is hinged at the top end inside the bed frame 4, a hinge rod 5 is hinged at the top end of the surface of the transmission rod 6, a short rod 7 is hinged at the bottom end of the transmission rod 6, a moving block 8 is hinged at the left end of the short rod 7, the bottom of the moving block 8 is slidably connected with the bottom inside the bed frame 4, an adjusting rod 9 is hinged at the left side of the moving block 8, the left end of the adjusting rod 9 is hinged with the bottom of the bed board 1, an adjusting mechanism 2 is hinged at the right end of the rod 5, and the adjusting mechanism 2 is rotatably connected with the bed frame 4.
By means of the mechanism, the human body breathing and heartbeat simulation model person 3 can display the human body breathing and heartbeat simulation condition outwards through the human body breathing and heartbeat simulation component, and teaching is convenient, when the inclination angle of the human body breathing and heartbeat simulation model person 3 needs to be adjusted, the adjusting mechanism 2 can drive the hinged rod 5 to move, the hinged rod 5 can drive the transmission rod 6 to rotate, the transmission rod 6 is rotatably arranged with the bed frame 4 through a bearing, the rotating stability of the transmission rod 6 is guaranteed, the transmission rod 6 can drive the short rod 7 to move, the short rod 7 can drive the moving block 8 to move, the moving block 8 is slidably arranged with the bed frame 4 through a sliding rail, the moving block 8 can be stably moved leftwards and rightwards, the moving block 8 can drive the adjusting rod 9 to move, an upward force path is generated in the moving process of the adjusting rod 9, and the adjusting rod 9 jacks up the bed plate 1, let bed board 1 can drive the human body and breathe heartbeat simulation model people 3 and rotate, thereby adjust the human body and breathe heartbeat simulation model people's 3 inclination, adjustment mechanism 2 can drive transfer line 6 through hinge bar 5 and rotate, transfer line 6 can drive the movable block 8 through quarter butt 7 and remove, movable block 8 can drive bed board 1 through adjusting pole 9 and rotate, bed board 1 can drive the human body and breathe heartbeat simulation model people 3 and rotate, the pivoted human body breathes heartbeat simulation model people 3 and can no longer keep the level to lie, but can arbitrary angle modulation, breathes heartbeat simulation model people 3 to the human body and has carried out diversified show, the student also need not too to be close to the human body and breathes heartbeat simulation model people 3, make things convenient for the student to observe heartbeat simulation model people 3 to the human body and know, and can simulate human heartbeat, and increase the function, and convenient teaching.
As shown in fig. 1 to 4, as a preferred embodiment of the present embodiment, the adjusting mechanism 2 includes a rotating rod 21, a main bevel gear 22 and a sub bevel gear 23, two ends of the surface of the rotating rod 21 are rotatably sleeved with the inside of the bed frame 4, the left end of the rotating rod 21 is bolted to the right side of the main bevel gear 22, the teeth of the main bevel gear 22 are engaged with the teeth of the sub bevel gear 23, and the adjusting mechanism 2 further includes a transmission assembly.
The surface of bull stick 21 is bolted with the hand wheel, can rotate bull stick 21 through the hand wheel, and bull stick 21 passes through the bearing and rotates the setting with bedstead 4, ensures bull stick 21 pivoted stationarity, and bull stick 21 can drive main bevel gear 22 and rotate, and main bevel gear 22 and vice bevel gear 23 are conical gear, lets main bevel gear 22 can mesh with vice bevel gear 23, and main bevel gear 22 can drive vice bevel gear 23 and rotate.
As shown in fig. 2 to 5, in this embodiment, the transmission assembly includes a worm 24 and a worm wheel disc 25, a bottom end of a surface of the worm 24 is bolted to an axial center of the secondary bevel gear 23, a top end and a bottom end of the worm 24 are rotatably sleeved with an inside of the bed frame 4, a surface of the worm 24 is engaged with a left side of the worm wheel disc 25, an axial center of the worm wheel disc 25 is rotatably connected to a top end of a right side inside the bed frame 4, and a right end of a surface of the worm wheel disc 25 is hinged to a right end of the hinge rod 5.
In the embodiment, as shown in fig. 1, a bracket is welded between the right side and the top of the inside of the bed frame 4, the surface of the bracket is rotatably connected with the axis of the worm wheel disc 25, the left end of the surface of the rotating rod 21 is rotatably sleeved with a connecting block, and the bottom of the connecting block is bolted with the right side of the bottom end of the inside of the bed frame 4.
Worm wheel dish 25 passes through the bearing and rotates the setting with the support, and worm wheel dish 25 passes through the support and rotates the setting with bedstead 4, and the support can effectively support worm wheel dish 25, and bull stick 21 passes through the bearing and rotates the setting with the connecting block, and guarantee bull stick 21 pivoted stationarity makes things convenient for the rotation of bull stick 21.
As shown in fig. 7, in the present embodiment, the respiration simulation subsystem 10 includes a respiration simulation air bag 101, a three-way air tube 102, an inflation electric pump 103, a deflation electric pump 104, a barometer 105 and an MCU micro control unit 106, an air inlet end of the respiration simulation air bag 101 is communicated with an air opening of the three-way air tube 102, an air inlet end of the three-way air tube 102 is communicated with an air outlet end of the inflation electric pump 103, an air outlet end of the three-way air tube 102 is communicated with an air inlet end of the deflation electric pump 104, the barometer 105 is disposed inside the respiration simulation air bag 101, and the inflation electric pump 103, the deflation electric pump 104 and the barometer 105 are all electrically connected with the MCU micro control unit 106.
The MCU micro control unit 106 can control the charging electric pump 103 to start through the electric signal, the charging electric pump 103 can inject air into the three-way air pipe 102, the three-way air pipe 102 can inject air into the respiration simulation air bag 101, and the MCU micro control unit 106 can control the discharging electric pump 104 through the electric signal. The deflate pump 104 draws air from the three-way air tube 102, and the three-way air tube 102 can draw air from the respiration simulation balloon 101 to make the respiration simulation balloon 101 inflate and vibrate.
As shown in fig. 7, in this embodiment, the respiration simulation air bag 101 is a simulation human thorax, the respiration simulation air bag 101 is inflated, i.e., a simulation human inspiration, the respiration simulation air bag 101 is deflated, i.e., a simulation human expiration, the whole inflation and deflation process is a human respiration process, the MCU micro control unit 106 detects a real-time status of the air pressure value in the respiration simulation air bag 101 detected by the barometer 105, and controls the inflation electric pump 103 and the deflation electric pump 104 to periodically operate at an appropriate inflation and deflation ratio according to the respiration curve set by the respiration heartbeat curve generating software 12, and the inflation and deflation period is a respiration period.
The respiration simulation subsystem 10 can effectively simulate the human respiration condition, the simulation is real, and the study of the students is convenient.
As shown in fig. 7, in this embodiment, the heartbeat simulation subsystem 11 includes a heartbeat simulation motor 111, a counter 112 and an MCU single chip microcomputer 113, the heartbeat simulation motor 111 and the counter 112 are both electrically connected to the MCU single chip microcomputer 113, the heartbeat simulation motor 111 and the counter 112 are electrically connected, the MCU micro control unit 106 and the MCU single chip microcomputer 113 constitute an MCU control unit, and an output end of the MCU control unit is electrically connected to an input end of the respiration heartbeat curve generation software 12.
The MCU singlechip 113 can control the heartbeat simulation motor 111 to rotate, so that the vibration of the heartbeat simulation motor 111 can be consistent with the condition of human heartbeat, and the counter 112 can detect the vibration frequency of the heartbeat simulation motor 111.
As shown in fig. 7, in this embodiment, the MCU singlechip 113 controls the heartbeat simulation motor 111 to operate at a set frequency and a set change rate to simulate the heartbeat curve and period of the human body, the counter 112 measures the vibration period and change rate of the heartbeat simulation motor 111, and the MCU control unit dynamically adjusts the rotation rate of the heartbeat simulation motor 111 according to the detected vibration period and change rate of the heartbeat simulation motor 111 fed back by the counter 112, so as to achieve the heart rate curve set by the respiration heartbeat curve generating software 12.
The condition of human heartbeat can be effectively simulated, the simulation is real, and the student can conveniently observe and study.
As shown in fig. 7, in this embodiment, the respiration and heartbeat curve generation software 12 provides a human-computer interaction interface, can set respiration rate and heart rate parameters, can introduce a respiration rate and heart rate variation curve, and issue the respiration rate and heart rate variation curve to the MCU control unit through the interface, the MCU control unit sets the respiration rate and heart rate variation curve configured by the respiration and heartbeat curve generation software 12 to perform driving control on the respiration simulation subsystem 10 and the heartbeat simulation subsystem 11, and the respiration and heartbeat curve generation software 12 can generate a respiration and heartbeat curve graph of specific disease characteristics by performing big data analysis on the respiration and heartbeat condition of a specific disease, so as to simulate the respiration and heartbeat condition under the specific disease condition.
The respiratory frequency range is generally 7-40 bpm, the heart rate range is 35-250 bpm, the heart rate of the same person is generally more than 4 times of the respiratory rate, the simulation of the heartbeat signal is realized by driving the heartbeat simulation motor 111 through the MCU control unit, the MCU control unit controls and changes the rotating speed of the heartbeat simulation motor 111 in real time to simulate the corresponding heart rate waveform, the simulation of the chest cavity is realized by the process of breathing and inhaling of the human body through the inflation and deflation of the respiration simulation air bag 101, the method is consistent with the chest respiration principle of a human body in terms of mechanism, has visual verification effect on the non-contact sensor for measuring the respiration of the human body, any periodic signal consists of fundamental frequency sine waves and high frequency sine waves, the frequency of the high frequency sine waves is integral multiple of the fundamental frequency, the fundamental waves are also called first harmonic waves, waveforms more than second harmonic waves are called higher harmonic waves, the steeper the change of the periodic signal is, the higher the energy of the higher harmonic waves is, in order to reduce the influence of higher harmonics of the respiration signal on the heart rate signal, the respiration driving signal is driven by a sine wave, when the period of the driving signal needs to be adjusted, an algorithm controls an air pump to adjust the period of the driving signal at the wave crest and the wave trough of the respiration signal, the period is adjusted at the wave crest and the wave trough without bringing higher harmonics, so that in the whole driving process of respiration, the higher harmonics can be controlled within a smaller energy range, the corresponding signal waveform is detected by the non-contact respiration heart rate sensor and processed by a corresponding filtering mechanism, can obtain ideal respiration heart rate signals, imitate the generation mechanism of the real human respiration and heartbeat, can simulate the human respiration heart rate curve and even the respiration heart rate curve under various disease conditions in a very real way and present in the form of entity equipment, the validity and reliability verification of the system can be realized for the non-contact type respiration and heartbeat detection equipment.
In the present embodiment, as shown in fig. 1, the top of the bed frame 4 is provided with an opening, the left end of the adjusting rod 9 penetrates through the opening at the top of the bed frame 4 and is hinged to the bottom of the bed plate 1, and the left end of the adjusting rod 9 is inclined upward.
The opening of bedstead 4 makes things convenient for the activity of adjusting pole 9, makes things convenient for movable block 8 to drive the rotation of bed board 1 through adjusting pole 9, conveniently adjusts the inclination of bed board 1, and the convenient movable block 8 that adjusts the slope of pole 9 drives and adjusts pole 9 and produce ascending power.
The working principle is as follows: human body respiration heartbeat simulation model people 3 can outwards demonstrate the human body respiration heartbeat simulation condition through human body respiration heartbeat simulation subassembly, the teaching is convenient, when needing to adjust human body respiration heartbeat simulation model people 3 inclination, the surface bolt of bull stick 21 has the hand wheel, can rotate bull stick 21 through the hand wheel, bull stick 21 passes through the bearing and rotates the setting with bedstead 4, guarantee bull stick 21 pivoted stationarity, bull stick 21 can drive main bevel gear 22 and rotate, main bevel gear 22 and vice bevel gear 23 are the conical gear, let main bevel gear 22 can mesh with vice bevel gear 23, main bevel gear 22 can drive vice bevel gear 23 and rotate, vice bevel gear 23 can drive worm 24 and rotate, worm 24 passes through the bearing and rotates the setting with bedstead 4, guarantee worm 24 pivoted stationarity, avoid worm 24 to rotate the in-process and appear rocking, worm 24 can drive worm wheel dish 25 clockwise rotation, worm wheel dish 25 passes through the bearing and rotates the setting with bedstead 4, guarantee worm wheel dish 25 pivoted stationarity.
Be eccentric structure between worm wheel dish 25 and the hinge bar 5, worm wheel dish 25 clockwise rotation in-process can drive hinge bar 5 and move left, hinge bar 5 can drive transfer line 6 and rotate left, transfer line 6 passes through the bearing and rotates the setting with bedstead 4, guarantee transfer line 6 pivoted stationarity, transfer line 6 can drive quarter butt 7 and move left, quarter butt 7 can drive movable block 8 and move left, movable block 8 passes through the slide rail and slides the setting with bedstead 4, let movable block 8 remove about can be steady, avoid movable block 8 to appear squinting, movable block 8 can drive regulation pole 9 and move left, it produces ascending power to adjust pole 9 and move left the in-process.
Adjust pole 9 and upwards jack-up bed board 1, let bed board 1 can drive the human heartbeat simulation model people 3 rotations of breathing, thereby adjust the human inclination of breathing heartbeat simulation model people 3, MCU micro control unit 106 can control the pneumatic pump 103 through the signal of telecommunication and start, pneumatic pump 103 can be gaseous to the inside injection of tee bend pipe 102, tee bend pipe 102 can be to the inside injection air of breathing simulation gasbag 101, MCU micro control unit 106 can control air discharge pump 104 through the signal of telecommunication. The deflation electric pump 104 extracts air from the three-way air pipe 102, the three-way air pipe 102 can extract air from the respiration simulation air bag 101, the respiration simulation air bag 101 is made to expand and vibrate, the MCU single chip microcomputer 113 can control the heartbeat simulation motor 111 to rotate, the vibration of the heartbeat simulation motor 111 can be consistent with the condition of human heartbeat, and the counter 112 can detect the vibration frequency of the heartbeat simulation motor 111.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A human body respiration and heartbeat simulation system comprises a bed board (1) and a human body respiration and heartbeat simulation model person (3) clamped and connected with the top of the bed board (1), and is characterized in that the left end of the bottom of the bed board (1) is hinged with a bed frame (4), a human body respiration and heartbeat simulation component is arranged inside the human body respiration and heartbeat simulation model person (3), the human body respiration and heartbeat simulation component comprises a respiration simulation subsystem (10), a heartbeat simulation subsystem (11) and respiration and heartbeat curve generation software (12), both the respiration simulation subsystem (10) and the heartbeat simulation subsystem (11) are electrically connected with the respiration and heartbeat curve generation software (12), the top end inside the bed frame (4) is hinged with a transmission rod (6), the top end of the surface of the transmission rod (6) is hinged with a hinged rod (5), the bottom end of the transmission rod (6) is hinged with a short rod (7), the left end of the short rod (7) is hinged with a moving block (8), the moving block (8) is slidably connected with the bed frame (4), the left side of the moving block (8) is hinged with a regulating rod (9), the right end of the regulating rod (9) is hinged with the bed board (1), and the regulating mechanism (2) is hinged with the hinged rod (5);
the respiration simulation subsystem (10) comprises a respiration simulation air bag (101), a three-way air pipe (102), an inflatable electric pump (103), a deflating electric pump (104), a barometer (105) and an MCU (microprogrammed control unit) (106), wherein the air inlet end of the respiration simulation air bag (101) is communicated with the air port of the three-way air pipe (102), the air inlet end of the three-way air pipe (102) is communicated with the air outlet end of the inflatable electric pump (103), the air outlet end of the three-way air pipe (102) is communicated with the air inlet end of the deflating electric pump (104), the barometer (105) is arranged in the respiration simulation air bag (101), and the inflatable electric pump (103), the deflating electric pump (104) and the barometer (105) are all electrically connected with the MCU (106);
the breathing simulation air bag (101) is used for simulating the thorax of a human body, the breathing simulation air bag (101) is inflated to simulate the inspiration of the human body, the breathing simulation air bag (101) is deflated to simulate the expiration of the human body, the whole inflation and deflation process is the breathing process of the human body, the MCU (106) detection barometer (105) is used for detecting the real-time condition of the air pressure value in the breathing simulation air bag (101), the inflation electric pump (103) and the deflation electric pump (104) are controlled to work periodically at a proper inflation and deflation ratio according to the breathing curve set by the breathing heartbeat curve generation software (12), and the inflation and deflation period is the breathing period.
2. The human body respiration heartbeat simulation system as claimed in claim 1, wherein the adjusting mechanism (2) comprises a rotating rod (21), a main bevel gear (22) and an auxiliary bevel gear (23), both ends of the surface of the rotating rod (21) are rotatably sleeved with the inside of the bed frame (4), the left end of the rotating rod (21) is bolted with the axle center of the right side of the main bevel gear (22), the teeth of the main bevel gear (22) are meshed with the teeth of the auxiliary bevel gear (23), and the adjusting mechanism (2) further comprises a transmission component.
3. The human body respiration heartbeat simulation system as claimed in claim 2, wherein the transmission assembly comprises a worm (24) and a worm wheel disc (25), the bottom end of the surface of the worm (24) is bolted with the axis of the secondary bevel gear (23), the top end and the bottom end of the worm (24) are rotatably sleeved with the inside of the bedstead (4), the surface of the worm (24) is meshed with the left side of the worm wheel disc (25), the axis of the worm wheel disc (25) is rotatably connected with the top end of the inside right side of the bedstead (4), and the right end of the surface of the worm wheel disc (25) is hinged with the right end of the hinge rod (5).
4. The human body respiration heartbeat simulation system as claimed in claim 3, wherein a bracket is welded between the right side and the top of the inside of the bedstead (4), the surface of the bracket is rotatably connected with the axis of the worm wheel disc (25), the left end of the surface of the rotating rod (21) is rotatably sleeved with a connecting block, and the bottom of the connecting block is bolted with the right side of the bottom end of the inside of the bedstead (4).
5. The human body respiration heartbeat simulation system according to claim 1, wherein the heartbeat simulation subsystem (11) comprises a heartbeat simulation motor (111), a counter (112) and an MCU (microprogrammed control Unit) singlechip (113), the heartbeat simulation motor (111) and the counter (112) are electrically connected with the MCU singlechip (113), the heartbeat simulation motor (111) and the counter (112) are electrically connected, the MCU micro control unit (106) and the MCU singlechip (113) form an MCU control unit, and the output end of the MCU control unit is electrically connected with the input end of the respiration heartbeat curve generation software (12).
6. The human body respiration heartbeat simulation system according to claim 5, wherein the MCU (113) controls the heartbeat simulation motor (111) to work at a set frequency and a set change rate to simulate the curve and the period of the human body heartbeat, the counter (112) measures the vibration period and the change rate of the heartbeat simulation motor (111), and the MCU control unit dynamically adjusts the rotation rate of the heartbeat simulation motor (111) according to the detected vibration period and the change rate of the heartbeat simulation motor (111) fed back by the counter (112) to achieve the heart rate curve set by the respiration heartbeat curve generation software (12).
7. The human body respiration heartbeat simulation system according to claim 5, wherein the respiration heartbeat curve generation software (12) provides a human-computer interaction interface, can set respiration rate and heart rate parameters, can introduce respiration rate and heart rate variation curves, and issues the respiration rate and the heart rate variation curves to the MCU control unit through the interface, the MCU control unit sets the respiration rate and the heart rate variation curves configured by the respiration heartbeat curve generation software (12) to perform drive control of the respiration simulation subsystem (10) and the heartbeat simulation subsystem (11), and the respiration heartbeat curve generation software (12) can generate a respiration heartbeat curve graph with specific disease characteristics by performing big data analysis on respiration heartbeat conditions of specific diseases to simulate the respiration heartbeat conditions under specific disease conditions.
8. The human body respiration heartbeat simulation system as claimed in claim 1, wherein the top of the bed frame (4) is provided with a through hole, the left end of the adjusting rod (9) penetrates through the through hole at the top of the bed frame (4) and is hinged with the bottom of the bed board (1), and the left end of the adjusting rod (9) is inclined upwards.
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