CN210155116U - Simulation device for real human body breathing process - Google Patents
Simulation device for real human body breathing process Download PDFInfo
- Publication number
- CN210155116U CN210155116U CN201921005048.6U CN201921005048U CN210155116U CN 210155116 U CN210155116 U CN 210155116U CN 201921005048 U CN201921005048 U CN 201921005048U CN 210155116 U CN210155116 U CN 210155116U
- Authority
- CN
- China
- Prior art keywords
- module
- control module
- respiratory
- key
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a true human respiratory analogue means, include: the power supply driving module is used for supplying power to components needing to be supplied with power in the simulation device; the parameter adjusting module is used for inputting adjusting signals of respiratory frequency and respiratory volume; the embedded micro-control module is used for adjusting the output PWM control signal and the relay control signal according to the adjusting signal input by the parameter adjusting module and outputting real-time respiratory frequency and respiratory volume; the PWM control module is used for outputting a control signal of the air pump motor; the display is used for receiving and displaying the real-time respiratory rate and respiratory volume output by the embedded micro-control module; and the air pump is used for realizing the simulation of the real human breathing process of the preset breathing frequency and the breathing amount according to the rotating speed and the rotating direction of the air pump motor. The device of the utility model can simulate the breathing characteristics of human body; the device can be used for simulating and detecting the inhalation exposure concentration of the particle pollutants in the human body microenvironment and the respiratory tract in the particle pollutant environment.
Description
Technical Field
The utility model belongs to the technical field of breathe simulation technique and breathe and expose research technical field, a true human respiratory process's analogue means is related to.
Background
With the continuous development of social economy, the air quality problem of many countries in the world is becoming serious and seriously harms human health; among them, the incidence of respiratory diseases is high and is getting more and more intense.
A person is the subject of the environment, and the person can be not only a receptor for the spread of pollutants in the environment, but also a pollution source; human body heat dissipation also affects the flow field around the human body and the spread of pollutants, so people must participate in the relevant research. However, in the course of research in some environmental-related fields, it is not preferable from the viewpoint of health safety to conduct experimental research using a real person, for example, in the course of research on breath simulation and breath exposure.
In view of the above, it is desirable to develop a device for simulating the normal breathing process of a human body to evaluate the level of respiratory exposure in place of a real human.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simulation device of true human respiratory to solve the technical problem that the above-mentioned exists. The device of the utility model can simulate the breathing characteristics of human body; the device can be used for simulating and detecting the inhalation exposure concentration of the particle pollutants in the human body microenvironment and the respiratory tract in the particle pollutant environment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a simulation device of a real human breathing process, comprising:
the power supply driving module is used for supplying power to components needing to be supplied with power in the simulation device;
the parameter adjusting module is used for inputting adjusting signals of respiratory frequency and respiratory volume;
the embedded micro-control module is used for adjusting the output PWM control signal and the relay control signal according to the adjusting signal input by the parameter adjusting module and simultaneously outputting real-time respiratory frequency and respiratory volume;
the PWM control module is used for outputting a control signal of the air pump motor according to the PWM control signal output by the embedded micro-control module and adjusting the rotating speed and the rotating direction of the air pump motor;
the display is used for receiving and displaying the real-time respiratory rate and respiratory volume output by the embedded micro-control module;
the air pump is used for realizing the simulation of the real human breathing process of the preset breathing frequency and the breathing amount according to the rotating speed and the rotating direction of the air pump motor; the air pump is communicated with an air suction pipe and an air expiration pipe, a first electromagnetic valve is arranged on the air suction pipe, and a second electromagnetic valve is arranged on the air expiration pipe;
the relay is used for realizing the on-off of the first electromagnetic valve and the second electromagnetic valve according to a relay control signal output by the embedded micro-control module; when the first electromagnetic valve is communicated, the second electromagnetic valve is disconnected; when the second electromagnetic valve is communicated, the first electromagnetic valve is disconnected.
The utility model discloses a further improvement lies in, power drive module includes: an adapter and a voltage reduction module;
the adapter is used for connecting external voltage, and the adapter outputs 24V voltage to the voltage reduction module, the parameter adjustment module, the air pump motor, the first electromagnetic valve and the second electromagnetic valve;
the voltage reduction module outputs 3.3V voltage to the embedded micro-control module, the display and the relay.
The utility model discloses a further improvement lies in, embedded little control module includes: a microprocessor STM32 singlechip and a control drive circuit thereof; the control driving circuit is respectively connected with the PWM control module, the display and the parameter adjusting module; the display is used for driving the display, the adjusting keys in the parameter adjusting module are used for driving the adjusting keys, and the control signals are also output.
The utility model has the further improvement that the singlechip is an STM32F103 singlechip, a Cortex-M3 kernel is adopted, and a built-in timer can generate multipath PWM output and a plurality of operable bidirectional GPIO ports; the control circuit is connected with an adjusting key in the parameter adjusting module, a PWM signal receiving terminal and a GPIO control terminal in the PWM control module, a data signal input end of the display and a relay through the GPIO pin.
The utility model is further improved in that the parameter adjusting module comprises a parameter adjusting plate;
the regulation button of parameter adjustment board includes: a respiratory frequency adding key a, a respiratory frequency subtracting key b, a respiratory volume adding key c, a respiratory volume subtracting key d, an operation/stop key e and a simulation device main switch f;
the breathing frequency adding key a and the breathing frequency subtracting key b send breathing frequency increasing or decreasing commands to the embedded micro-control module;
the respiration volume adding key c and the respiration volume reducing key d send respiration volume increasing or reducing commands to the embedded micro-control module;
and the embedded micro-control module regulates the PWM control signal output to the PWM control module according to the received key command.
The utility model has the further improvement that the respiratory frequency adjusting range of the respiratory frequency adding button a and the respiratory frequency subtracting button b is 10-20 times/min, and the respiratory frequency increased or reduced by each button is 0.5 times/min; the respiratory volume adjustment range of the respiratory volume plus key c and the respiratory volume minus key d is 6-12L/min, and the respiratory volume increased or decreased by each key is 0.5L/min.
The utility model discloses a further improvement lies in, PWM control module includes: the circuit comprises an L298N direct current motor driving circuit, an optical coupling isolation circuit and an undervoltage overcurrent protection circuit; the L298N direct current motor driving circuit is used for amplifying signals output by the embedded micro control module, so that the speed regulation and the positive and negative rotation of the motor are controlled; the optical coupling isolation circuit is used for eliminating the interference of the L298N direct current motor driving circuit on the input signal of the embedded micro control module; the undervoltage overcurrent protection circuit is used for preventing instantaneous large current from burning the module.
The utility model discloses a further improvement lies in, still includes: an integration box;
the embedded control module, the power supply driving module, the PWM control module, the air pump, the first electromagnetic valve and the second electromagnetic valve are all fixedly arranged in the openable integration box;
and the display and the parameter adjusting module are fixedly arranged on the outer wall of the integrated box.
Compared with the prior art, the utility model discloses following beneficial effect has:
the device of the utility model is a breathing simulation device based on a micro control system, which realizes the simulation of the breathing characteristics of a human body by accurately controlling the breathing frequency and the breathing volume; the device can be used for simulating and detecting the inhalation exposure concentration of the particle pollutants in the human body microenvironment and the respiratory tract in the particle pollutant environment; the detection result can provide reliable data basis and theoretical guidance for judging the influence of the particle pollutant environment on the real human respiratory tract. Specifically, the breathing simulation device of the utility model can simulate the breathing characteristics of a real human body, can meet the breathing frequency and the breathing amount of the real human body, and the breathing gas flow rate conforms to the sine rule curve, so that the original constant flow mode can be replaced, and the breathing process of the human body can be reflected more truly, thereby truly reflecting the air suction process of the human body and reflecting the pollutant exposure level of the breathing zone of the human body; in addition, the propagation rule of the human body respiratory pollutants can be reflected more truly. The utility model discloses a device has utilized high performance's microcontroller and advanced PWM control technique, and the respiratory process of human body is realized to the positive and negative rotation and the speed governing of control air pump, and its control adjustment precision is high, and stability is good, and the response is fast.
Drawings
Fig. 1 is a schematic overall structure diagram of a real human breathing process simulation device based on a micro control system according to an embodiment of the present invention;
fig. 2 is a schematic power supply diagram of a power module in a simulation apparatus for a real human breathing process based on a micro control system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the detection and control signal system in the simulation device for the real human breathing process based on the micro control system according to the embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a PWM control module according to an embodiment of the present invention;
in fig. 1 to 3, 1, an embedded micro control module; 2. a power driving module; 3. a PWM control module; 4. an air pump; 5. a first solenoid valve; 6. a second solenoid valve; 7. a display; 9. a parameter adjusting plate; 10. a relay.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, an actual human breathing process simulation apparatus based on a micro control system according to an embodiment of the present invention includes: the device comprises an embedded micro-control module 1, a power supply driving module 2, a PWM control module 3, an air pump 4, a display 7 and a parameter adjusting plate 9.
The embedded micro-control module 1 comprises a microprocessor STM32 single chip microcomputer and a control drive circuit thereof; the control driving circuit is connected with the PWM control module 3, the display 7 and the parameter adjusting plate 9, and is used for driving adjusting keys a, b, c, d, e and f in the display 7 and the parameter adjusting plate 9, and also used for coordinating all module components, detecting feedback signals, processing the feedback signals and outputting control signals. Specifically, the embedded micro-control module 1 comprises an STM32 single chip microcomputer, a reset circuit, a crystal oscillator circuit and a GPIO port output circuit; the singlechip is an STM32F103 singlechip, a Cortex-M3 inner core is adopted, a built-in timer can generate up to 4 paths of PWM output and a considerable number of operable bidirectional GPIO ports, and the driving and control requirements of the display, the PWM output, the adjusting keys and the relay in the utility model are met simultaneously; the embedded micro-control module is used for program operation control of the whole device, and comprises a logic signal output unit, a control relay, a display drive unit, a parameter adjusting plate and a feedback unit, wherein the display drive unit transmits real-time parameter data to the display drive unit, outputs original PWM signal pulses and feeds back adjustment of the parameter adjusting plate. The microprocessor is connected with the peripheral circuit by adopting an optical coupling isolation circuit, and is used for eliminating interference caused by strong current and enhancing the stability of transmission signals.
The power driving module 2 is connected with the embedded micro control module 1, the PWM control module 3, the air pump 4, the first electromagnetic valve 5, the second electromagnetic valve 6, the display 7 and the parameter adjusting plate 9, and is used for providing power input matched with the working electrical characteristics of each module assembly, namely, providing power input matched with the working electrical characteristics of the embedded micro control module, the PWM control module, the air pump, the first electromagnetic valve, the second electromagnetic valve, the display and the parameter adjusting plate.
The PWM control module 3 is connected with the embedded micro-control module 1 and the air pump 4 and is used for converting an original PWM signal output by the embedded micro-control module 1, so that braking, forward and reverse rotation and speed regulation of the air pump motor are realized.
The air pump 4 is connected with the power driving module 2, the PWM control module 3, the first electromagnetic valve 5, the second electromagnetic valve 6 and the output assembly, and is used as a power source for expiration and inspiration, the output hose A realizes expiration, and the hose B realizes inspiration.
The display 7 is connected with the embedded micro control module 1 and the power supply driving module 2, is driven by the embedded micro control module and displays data input, and is used for displaying the value of the MCU real-time breathing parameter and real-time change of the parameter when the breathing parameter is adjusted by the parameter adjusting plate.
The parameter adjusting plate 9 comprises a respiratory frequency adding key a, a respiratory frequency subtracting key b, a respiratory volume adding key c, a respiratory volume subtracting key d, an operation/stop key e and a device total switch f; the parameter adjusting plate 9 is connected with the embedded micro control module 1 and the power driving module 2, and is used for adjusting the breathing frequency and the breathing volume and feeding back the breathing frequency and the breathing volume to the embedded micro control module 1. Specifically, utilize the button in the parameter adjustment board, can adjust these two respiratory important parameters of human body of respiratory rate and respiratory capacity, also can realize the operation and the stopping of device, the air pump motor is in unsettled state this moment, adjusts feedback to embedded little control module, through the processing of STM32 singlechip, adjusts signal output to each operation subassembly, realizes the regulation of parameter and the operation of device.
Referring to fig. 2, in the embodiment of the present invention, the input power of the power driving module 2 is converted into a 24V dc regulated power supply by the adapter, and the air pump 4, the first electromagnetic valve 5, the second electromagnetic valve 6 and the parameter adjusting plate 9 can be directly powered by the 24V regulated power supply; for the embedded micro control module 1, the display 7 and the relay 10, the voltage is reduced to 3.3V by the voltage reduction module built in the power driving module 2, so that the module components can be powered.
Referring to fig. 3, the embedded micro control module 1 is the core of the entire device control system, and is used for receiving, processing and releasing the control signal. Specifically, the STM32 single chip microcomputer in the embedded micro control module 1 is connected with the keys a, b, c, d, e and f in the parameter adjusting board 9, the PWM signal receiving terminal and the GPIO control terminal in the PWM control module 3, the data signal input terminal of the display 7 and the relay 10 through GPIO pins.
The respiratory frequency adding key a and the respiratory frequency reducing key b of the parameter adjusting plate 9 send respiratory frequency increasing or reducing commands to the embedded micro-control module 1 through the GPIO ports, the respiratory frequency adjusting range is 10-20 times/min, the respiratory frequency increasing or reducing of each key is 0.5 times/min, and the adjusting process is displayed in real time through the display 7, so that the adjusting process is more visual. The respiration volume adding key c and the respiration volume reducing key d of the parameter adjusting plate 9 send respiration volume increasing or reducing commands to the embedded micro-control module 1 through the GPIO ports, the respiration volume adjusting range is 6-12L/min, the respiration volume increased or reduced by each key is 0.5L/min, and the adjusting process is displayed in real time through the display 7. The compiling program is embedded into the STM32 single chip microcomputer according to the control requirement, the hardware driving and real-time display control data transmission of the display 7 are realized through the program, the data are received by a serial port receiving pin of the MCU and transmitted to the LCD screen, and the real-time monitoring is realized. Specifically, the compiled program is burnt to an STM32 single chip microcomputer, and the program comprises a judgment and processing code for parameter adjusting plate key feedback, a driving and real-time data display code of an LCD display, a PWM pulse signal generation and air pump motor logic control code and an operation code of a GPIO port, so that all operation components of the whole device work orderly.
The embedded micro control module regulates the PWM control signal output to the PWM control module according to the received key command, and the specific steps comprise: step 1, when a key is pressed down, a signal is fed back to an embedded micro control module, corresponding two GPIO ports output corresponding high level or low level through a pre-burnt control program (already published), specific control logic refers to a table 1, and meanwhile, a PWM control signal is output to the PWM control module from an output port of a micro controller; and 2, performing optical coupling isolation and signal amplification through the PWM control module to ensure that the PWM signal and the logic control signal are stable and are not interfered by a driving circuit, thereby controlling the rotating speed and the rotating direction of the air pump motor to realize the adjustment of the respiratory volume and the respiratory frequency.
For example, the control program describes: the modularized idea is utilized to write a program, external hardware connected with the STM32F103 singlechip is a key, a display and a relay, and a built-in CH2 channel with the functions of a timer and TIM4 is used for generating PWM signals and serial port communication. The method comprises the steps of writing a key scanning feedback program, an LCD initialization driver, a PWM initialization generator, a serial port initialization program, a timer initialization program, a delay initialization function, interrupt configuration and a system initialization program in a modularized mode. The main function is firstly initialized by a system, time delay initialization, interrupt configuration, serial port initialization, key initialization, LCD initialization and PWM initialization. Sending character strings for displaying initial respiratory frequency (10 times/min), respiratory volume (12L/min) and running state (stop) to an LCD through a serial port; then, key scanning is carried out, and a corresponding command is executed by judging whether a corresponding key is pressed: the respiratory frequency plus-minus key regulates the respiratory frequency by controlling the turn-off and pull-in interval time of the relay; the respiration volume addition and subtraction key adjusts the addition and subtraction of the respiration volume by adjusting the duty ratio of the output PWM signal. And the result adjusted by the key is sent to the LCD in real time through the serial port to realize visual operation.
The PWM control module includes: an L298N DC motor driving circuit, an optical coupling isolation circuit and an undervoltage overcurrent protection circuit. The L298N direct current motor driving circuit is used for amplifying a signal output by the embedded control module GPIO so as to control the speed regulation and the positive and negative rotation of the motor, and the specific control logic is shown in Table 1; the optical coupling isolation circuit is used for eliminating the interference of the motor driving circuit on the input signal of the embedded control module; the undervoltage overcurrent protection circuit can prevent instantaneous heavy current from burning the module. The specific circuit can be as shown in fig. 4.
The utility model discloses a theory of operation:
the embodiment of the utility model provides an in, the control mode to the air pump is the PWM technique mainly, controls inverter circuit switching element's break-make promptly, makes the output obtain the pulse that a series of amplitudes equal, replaces sine wave or required waveform with these pulses. That is, a plurality of pulses are generated in a half cycle of an output waveform, and the equivalent voltage of each pulse is a sine waveform, so that the obtained output is smooth and has few low-order harmonics. The width of each pulse is modulated according to a certain rule, so that the magnitude of the output voltage of the inverter circuit can be changed, and the output frequency can also be changed. When the respiratory rate and the respiratory volume are adjusted through the parameter adjusting plate, the keys are fed back to the STM32 single chip microcomputer through the GPIO ports, the adjusting command is judged in the embedded program, PWM signals with different pulse widths are output from the GPIO ports, the rotating speed of a motor of the air pump is adjusted by changing the duty ratio of the PWM, and therefore the respiratory volume is adjusted; and the breathing frequency is adjusted by changing the cycle number of the PWM pulse through a program. The definition of the PWM pulse signal is jointly determined by respiratory frequency, respiratory capacity and logic control on the air pump motor, the respiratory frequency determines the positive and negative rotation period of the air pump motor, the respiratory capacity determines the positive and negative rotation speed of the air pump motor, and the braking and suspension control of the air pump motor are realized through corresponding PWM signal pulses.
The PWM pulse signal output by the embedded control module 1 is sent to the PWM control module 3 by the GPIO pin to perform the boost adjustment of the PWM signal, and control the on and off of the inverter circuit switching device in the PWM control module 3, and output a series of periodic voltage pulses with equal amplitude to control the air pump 4, and the specific control logic is shown in table 1.
The relay 10 controlled by GPIO of the embedded control module 1 further controls the on and off of the first electromagnetic valve 5 and the second electromagnetic valve 6, and the air pump PWM control module 3 is matched to realize air outlet from the hose A and air inlet from the hose B in the output assembly. When the first electromagnetic valve 5 is switched on, the second electromagnetic valve 6 is switched off and the motor of the air pump 4 is controlled to rotate forwards, the hose A exhales; when the second solenoid valve 6 is turned on, the first solenoid valve 5 is turned off, and the motor controlling the air pump 4 rotates reversely, the hose B sucks air. This is a breathing cycle, which simulates human breathing.
TABLE 1 logical schematic diagram of control signal of air pump motor
Preferably, the embedded control module 1, the power driving module 2, the PWM control module 3, the air pump 4, the solenoid valve 5 and the solenoid valve 6 in the embodiment of the present invention are all fixedly disposed in a customized openable iron-clad box; the display 7 and the parameter adjusting plate 9 are both arranged on the iron sheet box door, so that the adjustment and the control can be conveniently and visually carried out; the expiration hose A and the inspiration hose B in the output assembly extend out of the iron sheet box door and extend by 50cm, so that the test is more convenient. The human body breathing simulation device can normally work only by the adapter of converting 220V into 24V, and is small, exquisite, convenient to install and move.
To sum up, the breathing simulation device of the utility model can simulate the breathing characteristics of a real human body, can meet the breathing frequency and the breathing amount of the real human body, and the breathing gas flow rate of the breathing simulation device conforms to the sine rule curve, so that the original constant flow mode can be replaced, and the breathing process of the human body can be reflected more truly, thereby truly reflecting the air suction process of the human body and reflecting the pollutant exposure level of the breathing zone of the human body; in addition, the propagation rule of the human body respiratory pollutants can be reflected more truly. This the utility model discloses a device has utilized high performance's microcontroller and advanced PWM control technique, and the respiratory process of human body is realized to the positive and negative rotation and the speed governing of control air pump, and its control adjustment precision is high, and stability is good, and the response is fast. The device is used for simulating the breathing of the human body, and the experimental error caused by using the original breathing device of the human body is overcome. The real reaction degree of the experimental working condition to the real working condition is improved, the pollution exposure level of the human breathing zone and the propagation rule of the human breathing pollutants can be accurately reflected, and the air quality improvement device plays an important role in solving the problem of pollutant propagation in the environment.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention is within the protection scope of the claims of the present invention.
Claims (8)
1. A simulation device for the real human breathing process, comprising:
the power supply driving module (2) is used for supplying power to components needing power supply in the simulation device;
the parameter adjusting module is used for inputting adjusting signals of respiratory frequency and respiratory volume;
the embedded micro-control module (1) is used for adjusting the output PWM control signal and the relay (10) control signal according to the adjusting signal input by the parameter adjusting module and simultaneously outputting real-time respiratory frequency and respiratory volume;
the PWM control module (3) is used for outputting a control signal of the air pump motor according to the PWM control signal output by the embedded micro-control module (1) and adjusting the rotating speed and the rotating direction of the air pump motor;
the display (7) is used for receiving and displaying the real-time respiratory rate and respiratory volume output by the embedded micro-control module (1);
the air pump (4) is used for realizing the simulation of the real human breathing process of the preset breathing frequency and the breathing amount according to the rotating speed and the rotating direction of the air pump motor; the air pump (4) is communicated with an air suction pipe and an air expiration pipe, a first electromagnetic valve (5) is arranged on the air suction pipe, and a second electromagnetic valve (6) is arranged on the air expiration pipe;
the relay (10) is used for realizing the on-off of the first electromagnetic valve (5) and the second electromagnetic valve (6) according to a relay (10) control signal output by the embedded micro-control module (1); when the first electromagnetic valve (5) is communicated, the second electromagnetic valve (6) is disconnected; when the second electromagnetic valve (6) is communicated, the first electromagnetic valve (5) is disconnected.
2. A simulation device of a real human breathing process according to claim 1, wherein the power driving module (2) comprises: an adapter and a voltage reduction module;
the adapter is used for connecting an external voltage; the adapter outputs 24V voltage to be supplied to the voltage reduction module, the parameter adjusting module, the air pump motor, the first electromagnetic valve (5) and the second electromagnetic valve (6);
the voltage reduction module outputs 3.3V voltage to the embedded micro-control module (1), the display (7) and the relay (10).
3. Simulation device of a real human breathing process according to claim 1, characterized in that the embedded micro control module (1) comprises: a microprocessor STM32 singlechip and a control drive circuit thereof; the control drive circuit is respectively connected with the PWM control module (3), the display (7) and the parameter adjusting module; the display (7) is used for driving the display, the adjusting keys in the parameter adjusting module are used for driving the adjusting keys, and the control signals are output.
4. A simulation device of a real human breathing process according to claim 3, wherein the single chip microcomputer is an STM32F103 single chip microcomputer, a Cortex-M3 kernel is adopted, and a built-in timer can generate multiple PWM outputs and a plurality of operable bidirectional GPIO ports; the control circuit is connected with an adjusting key in a parameter adjusting module, a PWM signal receiving terminal and a GPIO control terminal in a PWM control module (3), a data signal input end of a display (7) and a relay (10) through a GPIO pin.
5. A simulation device of a real human breathing process according to claim 1, wherein the parameter adjustment module comprises a parameter adjustment board (9);
the adjusting key of the parameter adjusting plate (9) comprises: a respiratory frequency adding key a, a respiratory frequency subtracting key b, a respiratory volume adding key c, a respiratory volume subtracting key d, an operation/stop key e and a simulation device main switch f;
the breathing frequency adding key a and the breathing frequency subtracting key b are used for sending breathing frequency increasing or decreasing commands to the embedded micro-control module (1);
the respiration volume adding key c and the respiration volume subtracting key d are used for sending respiration volume increasing or decreasing commands to the embedded micro-control module (1);
the embedded micro-control module (1) is used for adjusting the PWM control signal output to the PWM control module (3) according to the received key command.
6. A simulation device of a real human breathing process according to claim 5,
the respiratory frequency adjusting range of the respiratory frequency adding button a and the respiratory frequency subtracting button b is 10-20 times/min, and the respiratory frequency increased or decreased by each button is 0.5 times/min;
the respiratory volume adjustment range of the respiratory volume plus key c and the respiratory volume minus key d is 6-12L/min, and the respiratory volume increased or decreased by each key is 0.5L/min.
7. A simulation device of a real human breathing process according to claim 1, wherein the PWM control module (3) comprises: the circuit comprises an L298N direct current motor driving circuit, an optical coupling isolation circuit and an undervoltage overcurrent protection circuit;
the L298N direct current motor driving circuit is used for amplifying a signal output by the embedded micro control module (1) so as to control the speed regulation and the positive and negative rotation of the motor;
the optical coupling isolation circuit is used for eliminating the interference of the L298N direct current motor driving circuit on the input signal of the embedded micro control module (1);
the undervoltage overcurrent protection circuit is used for preventing instantaneous large current from burning the module.
8. A simulation apparatus of a real human breathing process according to any of the claims 1 to 7, further comprising: an integration box;
the embedded control module, the power driving module (2), the PWM control module (3), the air pump (4), the first electromagnetic valve (5) and the second electromagnetic valve (6) are all fixedly arranged in the openable integrated box;
and the display (7) and the parameter adjusting module are fixedly arranged on the outer wall of the integrated box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005048.6U CN210155116U (en) | 2019-06-28 | 2019-06-28 | Simulation device for real human body breathing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005048.6U CN210155116U (en) | 2019-06-28 | 2019-06-28 | Simulation device for real human body breathing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210155116U true CN210155116U (en) | 2020-03-17 |
Family
ID=69764781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921005048.6U Active CN210155116U (en) | 2019-06-28 | 2019-06-28 | Simulation device for real human body breathing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210155116U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221029A (en) * | 2019-06-28 | 2019-09-10 | 西安建筑科技大学 | A kind of simulator and analogy method of real human body respiratory |
| CN113405959A (en) * | 2021-06-18 | 2021-09-17 | 中煤科工集团重庆研究院有限公司 | Inhalable dust concentration detection device and method |
| CN113611199A (en) * | 2021-06-24 | 2021-11-05 | 四川大学 | Simple respiration simulation device |
-
2019
- 2019-06-28 CN CN201921005048.6U patent/CN210155116U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221029A (en) * | 2019-06-28 | 2019-09-10 | 西安建筑科技大学 | A kind of simulator and analogy method of real human body respiratory |
| CN113405959A (en) * | 2021-06-18 | 2021-09-17 | 中煤科工集团重庆研究院有限公司 | Inhalable dust concentration detection device and method |
| CN113611199A (en) * | 2021-06-24 | 2021-11-05 | 四川大学 | Simple respiration simulation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210155116U (en) | Simulation device for real human body breathing process | |
| CN104698893B (en) | The permanent wind amount output control method and system of a kind of smoke exhaust ventilator | |
| CN203469165U (en) | Respirator | |
| CN202387074U (en) | Portable respirator | |
| CN103736256A (en) | Human-body respiratory training device and respiratory training feedback method | |
| CN201389286Y (en) | Treadmill | |
| CN110221029A (en) | A kind of simulator and analogy method of real human body respiratory | |
| CN203396039U (en) | Central air conditioner system and air volume adjusting device thereof | |
| CN104667401A (en) | Breathing system based on blowers and control method | |
| CN211798101U (en) | ICU (intensive care unit) matched breathing device | |
| CN103235607A (en) | Portable automatic emergency oxygen supply apparatus | |
| WO2010081433A1 (en) | Electric control device for animal cardiopulmonary resuscitation | |
| CN205019382U (en) | Wireless Intelligence weight -reducing MASSAGE BELT | |
| CN209827905U (en) | Oxygen regulating valve | |
| CN207969029U (en) | A kind of LED illumination intelligent dimming, toning control system | |
| CN109269064A (en) | A kind of tuyere structure and fresh air system | |
| CN207421902U (en) | A kind of Multifunctional LED panel light | |
| CN113520759A (en) | Pressure boost oxygenation device for plateau environment | |
| CN113730751A (en) | Oxygen supply adjusting device, oxygen generator and oxygen supply adjusting method | |
| CN208864620U (en) | A kind of weight loss devices | |
| CN205730102U (en) | A kind of electromagnet pull device | |
| CN105582603A (en) | Gas flow pressure sensor-based medical oxygen uptake device | |
| CN204964981U (en) | Projector with plasma environmental cleaning system | |
| CN216653051U (en) | Atomizer actuating system with adjustable atomizing amount | |
| CN204756531U (en) | Environmental purification LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |