CN107823812A - A kind of breathing based on BLE bluetooth modules detects intelligent mouth mask - Google Patents
A kind of breathing based on BLE bluetooth modules detects intelligent mouth mask Download PDFInfo
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- CN107823812A CN107823812A CN201711263190.6A CN201711263190A CN107823812A CN 107823812 A CN107823812 A CN 107823812A CN 201711263190 A CN201711263190 A CN 201711263190A CN 107823812 A CN107823812 A CN 107823812A
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- Prior art keywords
- mouth mask
- breathing
- fan
- module
- chip microcomputer
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/06—Mouthpieces; Nose-clips
Abstract
The invention belongs to electrical and electronic technology, sensor, mcu programming field, disclose a kind of breathing based on BLE bluetooth modules and detect intelligent mouth mask, bluetooth module is provided with, to receive the data of external pressure monitoring modular transmission, analyzes people's breath state of one day, and recording respiration status data, to adjust the power of fan；Simultaneously when there is host computer request, by the form of broadcast, it is sent out Bluetooth signal host computer and cycles through the single-chip microcomputer service condition of one day and breathing situation.The intelligent mouth mask chip of the present invention can not only be by controlling fan to give wearer's initiative oxygen supply, the breathing situation of wearer can also be monitored constantly, fan oxygen-supplying amount is changed by mouth mask air pressure inside situation in real time, and wearer's service condition of one day can be recorded, cell phone application connection is coordinated to obtain usage time and the place of wearer, the convenient real time health situation for monitoring user.
Description
Technical field
The invention belongs to electrical and electronic technology, sensor, mcu programming field, more particularly to one kind are based on BLE bluetooths
The breathing of module detects intelligent mouth mask.
Background technology
Ble low-power consumption bluetooth transmission technologys, the Pressure monitoring collimation technique of BMP180 sensors, PWM modulation technology, manually
Air regulating port cover.
Traditional mouth mask, and already present band fan mouth mask on the market, because its sealing is strong, and can not be monitored constantly
The breathing situation of wearer, great trouble is caused to wearer, many wearers wear mouth in haze weather for a long time
Dizziness, the phenomenon of anoxic occurs in cover.
In summary, the problem of prior art is present be：The mouth mask of prior art can not be by controlling fan to wearer
Initiative oxygen supply, it is impossible to which the moment monitors the breathing situation of wearer；And wearer's service condition of one day can not be recorded, and
Cell phone application can not be coordinated to obtain usage time and the place of wearer, the convenient real time health situation for monitoring user；
The mouth mask of prior art, which can not carry out the defects of respiratory capacity monitoring, is：Intelligent chip and algorithm are not introduced to exhaling
Pipette is effectively monitored.
The content of the invention
The problem of existing for prior art, the invention provides a kind of breathing based on BLE bluetooth modules to detect intelligence
Mouth mask.Solve the problems, such as that target group causes mouth mask oxygen-supplying amount deficiency when using mouth mask because respiratory capacity is different.The present invention
Respiratory capacity is monitored by modern electronic technology combination sensor, and carried out data transmission by Bluetooth technology of new generation,
Solve the problems, such as that prior art is present.
The present invention is achieved in that a kind of breathing based on BLE bluetooth modules detects intelligent mouth mask, described to be based on BLE
The breathing of bluetooth module, which detects intelligent mouth mask, to be included：
Bluetooth module, by the built-in protocol stack write the single-chip microcomputer of algorithm and call single-chip microcomputer, realize to receive outside
The data of portion's Pressure monitoring module transfer, people's breath state of one day, and recording respiration status data are analyzed, to adjust fan
Power；Simultaneously when there is host computer request, by the form of broadcast, Bluetooth signal is sent out；Host computer is receiving signal
When using it as slave, interconnected with single-chip microcomputer, the passage different to single-chip microcomputer sends specific instruction, and host computer cycles through list
The piece machine service condition of one day and breathing situation；
Further, the Pressure monitoring module, join for gathering the pressure and temperature in mouth mask, and using air pressure-temperature
Updating formula is closed to obtain the air pressure change in mouth mask, by the change of the air pressure in mouth mask, to perceive the breathing feelings of wearer
Condition.
Further, the breathing based on BLE bluetooth modules detects intelligent mouth mask and also included：
Boost module, lithium battery is boosted using DC-DC, its nucleus module is FP6293 chips, by 3.7V lithium
Battery DC voltage, it is converted into the voltage that 6.0V is used to provide power for fan；
Voltage stabilizing module, for the voltage adjusted and stable boost module exports；Voltage stabilizing module employs cx6206 as master
Chip, it is a with CMOS technology manufacture high accuracy, low-power consumption, low pressure difference linear voltage regulator；
MICROUSB sockets, for being input voltage to lithium cell charging, its VCC positive voltage terminal, it is input to lithium battery and fills
4 pins of electric module, for lithium cell charging；MICROUSB socket GND ends and main circuit are altogether；
TP4056 lithium cell charging modules, for providing the energy for bluetooth module, Pressure monitoring module；TP4056 modules are
A charging module for applying PMOSFET frameworks, this module can use constant current/constant electricity to single-unit lithium ion battery
Press linear-charging.
Shift knob, the working condition for master chip switch, one termination I/O port, a termination high level, when switch is pressed
When lower, I/O port level changes, and master chip receives signal, you can conversion work state；
LED and external connection terminals, the instruction for working condition connect with external physical.
Another object of the present invention is to provide a kind of breathing detection method to include：
Single-chip microcomputer utilizes built-in 256K internal memories to record the air pressure numerical value in one minute using the mode scanned；
The respiratory of people can be divided into expiration-holding-air-breathing these three processes, and traditional mouth mask is because it is to sealing requirements
It is high, therefore a closing space model can be reduced to, in the space of a closing, if using x-axis as time t, y-axis is made
For interior volume air pressure, within several respiratory cycles, its function is relative to integration of the original internal air pressure in forward direction and exhalation
The amount of gas is directly proportional, and its proportionality coefficient is set to k, and similarly, reverse integration is suction gas flow, therefore, utilizes this integrated value
The breathing situation that mouth mask person is worn in a cycle can be obtained.
Due to the discreteness of electronic system collection, the data that the present invention measures are discrete, according to Shannon's sampling theorem, sheet
As long as the sample frequency of invention collection is more than two times of function frequency, you can original function, medical research are gone back in tolerance interval
Showing, everybody respiratory rate per minute of normal adult is 16-18 times per minute, and children's respiratory rate is 20 times per minute or so,
As long as therefore present invention gathered data in 1 second interval, you can be effectively worth, the present invention uses 200ms interval scans, can
Reduce its breathing situation to greatest extent, then by real-time respiratory capacity and calculate average value and compare, the difference drawn is tired out
Product, calculates the respiratory capacity average value in one minute, for discrete domain, its integrated value is equal to using the integral operation of discrete domain
By this equation, the amount of gas pressure in certain time is added up, it is determined that the urgency now breathed is delayed, then by this data
Record；
The air rate adjustment of blower fan is carried out using closed-loop control system, the data collected by Pressure monitoring module, which are used as, to be needed
The intake wanted, single-chip microcomputer adjust the wind speed of fan, mouth mask air pressure inside is consistently equal to the value of standard atmospheric pressure.
Further, the algorithm for power modulation of fan is controlled using the method for PWM, the method for specifically used dual H-bridge control,
There is signal end on four IGCTs two-by-two respectively as input, after the fan boosting at IGCT both ends, by adjusting control signal
The dutycycle of PWM ripples, fan both end voltage is controlled, while to the Power Control of fan electromotor.
Advantages of the present invention and good effect are：
The intelligent mouth mask chip of the present invention can not only be by controlling fan to give wearer's initiative oxygen supply, moreover it is possible to which moment monitoring is worn
The breathing situation of wearer, fan oxygen-supplying amount is changed by mouth mask air pressure inside situation in real time, and can record wearer's one day
Service condition, cell phone application connection is coordinated to obtain usage time and the place of wearer, it is convenient to monitor the strong in real time of user
Health situation.
The present invention is more excellent than the haze performance and gas permeability of existing traditional mouth mask.Normal adult everybody it is per minute breathing frequency
Rate is 16-18 times per minute, and children's respiratory rate is 20 times per minute or so, as long as present invention gathered data in 1 second interval,
Effective value is can obtain, the present invention uses 200ms interval scans, can reduce its breathing situation to greatest extent, then by real-time
Respiratory capacity and calculate average value and compare, the amount of gas pressure in certain time is added up, it is determined that the urgency now breathed is delayed, then by this
Data record；The breathing situation that mouth mask person is worn in a cycle can be obtained, the health status of monitoring user in real time can be achieved.
Brief description of the drawings
Fig. 1 is H-bridge circuit schematic diagram provided in an embodiment of the present invention.
Fig. 2 is mouth mask allomeric function structure chart provided in an embodiment of the present invention.
Fig. 3 is boost module circuit diagram provided in an embodiment of the present invention.
Fig. 4 is Voltage stabilizing module circuit diagram provided in an embodiment of the present invention.
Fig. 5 is lithium cell charging module circuit diagram provided in an embodiment of the present invention.
Fig. 6 is respiratory pressure figure inside closing space provided in an embodiment of the present invention.
Fig. 7 is air pressure inside measured drawing provided in an embodiment of the present invention.
Fig. 8 is adjustment schematic diagram of the single-chip microcomputer provided in an embodiment of the present invention to wind speed.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The present invention employs the single-chip microcomputer of the CC series of American TI Company, and coordinate the uniqueness of the present invention for master chip
Algorithm, you can realize set function.
The application principle of the present invention is further described below in conjunction with the accompanying drawings.
Breathing provided in an embodiment of the present invention based on BLE bluetooth modules detects intelligent mouth mask, including：
Boost module, Voltage stabilizing module, MICROUSB sockets, TP4056 lithium cell charging modules, BMP180 Pressure monitoring moulds
Block, CC2541 bluetooth modules, shift knob, LED and external connection terminals, its core are CC2541 bluetooth modules,
A piece of single-chip microcomputer built in this module, by writing algorithm, realize to receive the data of external pressure module transfer, so as to divide
People's breath state of one day is analysed, and records the data, to adjust the power of fan, while when there is host computer request, Ke Yitong
The form of broadcast is crossed, the service condition of one day is sent with the speed loop of 40 byte per seconds to host computer and breathes the function of situation,
Its kernel program algorithm includes following components：
Bluetooth interconnects：Use BLE low-power consumption bluetooth CC2541 chips, programmable 51 monolithic of cc2541 built-in chip types one
Machine, when writing program, its protocol stack is called, by the frequency of every 1000MS broadcast once, be sent out Bluetooth signal, host computer
It can be interconnected when receiving signal using it as slave, realization with it.Host computer can lead to when connecting its equipment to different
Road sends specific instruction, and to obtain interior data, agreement obtains it when sending 0x123456748912345678 and uses feelings
Condition, enter write mode when sending 0x123456789123456789, the function of prover time can be achieved.
Breathe probe algorithm：The present invention uses BMP180 Pressure monitoring modules, gathers the pressure and temperature situation in mouth mask,
And carry out the accurate air pressure change for obtaining and obtaining in mouth mask using air pressure-temperature joint updating formula, pass through the air pressure in mouth mask
Change, to perceive the breathing situation of wearer.Using the mode of scanning, every 800 milliseconds are carried out once master chip to barometric information
Read, and record the air pressure numerical value in one minute using the 256K internal memories of built-in chip type, using the integral operation of discrete domain come
Calculate the respiratory capacity average value in one minute, then by real-time respiratory capacity and calculate average value and compare, the difference drawn is entered
Row accumulation, to determine that the urgency now breathed is delayed, then by this data record, according to corresponding numerical value, using closed-loop control system,
To quantify the intake of air pressure needs, so as to the wind speed to adjustment fan so that air pressure inside is consistently equal to standard atmospheric pressure
Value.
Fan power is modulated：Fan power modulation has used the method for PWM to control, and its circuit has used dual H-bridge control
The method of system, its schematic diagram have signal end to be used as input two-by-two respectively on four IGCTs as shown in Figure 1, as can be seen,
IGCT both ends are plus the voltage after fan boosting, by the dutycycle for adjusting control signal pwm ripples, you can realize fan both ends
Voltage controls, and is that the work(to fan electromotor can be achieved using this circuit due to direct current generator voltage and the positive correlation of power
Rate controls.
The application principle of the present invention is further described with reference to specific embodiment.
In the intelligent mouth mask of the present invention, this chip is added, after power-on, wearer can be main without adjusting manually
Chip can automatically adjust fan oxygen-supplying amount according to the breathing situation of wearer.It is three parts inside mouth mask, i.e., ultra-thin high rotating speed supplies
Oxygen fan, lithium battery, and master chip.Its core technology is exactly the master chip part of the present invention, and its structure can be provided by Fig. 2.
Below in conjunction with the accompanying drawings and concrete analysis the invention will be further described.
Breathing provided in an embodiment of the present invention based on BLE bluetooth modules detects intelligent mouth mask, including：
Bluetooth module, by the built-in protocol stack write the single-chip microcomputer of algorithm and call single-chip microcomputer, realize to receive outside
The data of portion's Pressure monitoring module transfer, people's breath state of one day, and recording respiration status data are analyzed, to adjust fan
Power；Simultaneously when there is host computer request, by the form of broadcast, Bluetooth signal is sent out；Host computer is receiving signal
When using it as slave, interconnected with single-chip microcomputer, the passage different to single-chip microcomputer sends specific instruction, and host computer cycles through list
The piece machine service condition of one day and breathing situation；
The Pressure monitoring module, for gathering the pressure and temperature in mouth mask, and it is public using air pressure-temperature joint correction
Formula obtains the air pressure change in mouth mask, by the change of the air pressure in mouth mask, to perceive the breathing situation of wearer.
The breathing based on BLE bluetooth modules, which detects intelligent mouth mask, also to be included：
Boost module, lithium battery is boosted using DC-DC, its nucleus module is FP6293 chips, by 3.7V lithium
Battery DC voltage, the voltage that 6.0V is used to provide power for fan is converted into, it connects circuit diagram such as Fig. 3：
Voltage stabilizing module, for the voltage adjusted and stable boost module exports；Voltage stabilizing module employs cx6206 as master
Chip, it is a with CMOS technology manufacture high accuracy, low-power consumption, low pressure difference linear voltage regulator, its external circuit figure such as Fig. 4：
MICROUSB sockets, for being input voltage to lithium cell charging, its VCC positive voltage terminal, it is input to lithium battery and fills
4 pins of electric module, for lithium cell charging；MICROUSB socket GND ends and main circuit are altogether；
TP4056 lithium cell charging modules, for providing the energy for bluetooth module, Pressure monitoring module；TP4056 modules are
A charging module for applying PMOSFET frameworks, this module can use constant current/constant electricity to single-unit lithium ion battery
Press linear-charging.Its external connection figure such as Fig. 5.
Shift knob, the working condition for master chip switch, one termination I/O port, a termination high level, when switch is pressed
When lower, I/O port level changes, and master chip receives signal, you can conversion work state；
LED and external connection terminals, the instruction for working condition connect with external physical.
Another object of the present invention is to provide a kind of breathing detection method to include：
Using the mode of scanning, every 800 milliseconds are once read single-chip microcomputer to barometric information, and utilize built-in 256K
Internal memory records the air pressure numerical value in one minute；
The respiratory of people can be divided into expiration-holding-air-breathing these three processes, and traditional mouth mask is because it is to sealing requirements
It is high, therefore a closing space model can be reduced to, in the space of a closing, if using x-axis as time t, y-axis is made
For interior volume air pressure, within several respiratory cycles, its functional image can be summarized as below figure 6 and show：
It will be appreciated from fig. 6 that this function is directly proportional to the amount of exhaled gas in the integration of forward direction relative to original internal air pressure, its
Proportionality coefficient is set to k, and similarly, reverse integration is suction gas flow, therefore, can be obtained using this integrated value in a cycle
Wear the breathing situation of mouth mask person.
Due to the discreteness of electronic system collection, the data that measure of the present invention are discrete, if using Fig. 6 actual pressure as
Example, the air pressure inside figure such as Fig. 7 measured：
According to Shannon's sampling theorem, as long as two times of the sample frequency that gathers of the present invention more than function frequency, you can
Original function is gone back in the range of receiving, medical research shows, everybody respiratory rate per minute of normal adult is 16-18 times per minute, youngster
Virgin respiratory rate is 20 times per minute or so, as long as therefore present invention gathered data in 1 second interval, you can obtain effective
Value, the present invention use 200ms interval scans, can reduce its breathing situation to greatest extent, then by real-time respiratory capacity and calculate
Average value compares, and the difference drawn is accumulated, and is put down using the integral operation of discrete domain to calculate the respiratory capacity in one minute
Average, for discrete domain, its integrated value is equal to
By this equation, the amount of gas pressure in certain time is added up, it is determined that the urgency now breathed is delayed, then by this data
Record；
The air rate adjustment of blower fan is carried out using closed-loop control system, the data collected by Pressure monitoring module, which are used as, to be needed
The intake wanted, single-chip microcomputer adjust the wind speed of fan, mouth mask air pressure inside is consistently equal to the value of standard atmospheric pressure, its speed governing stream
Journey is as shown in Figure 8.
The algorithm for power modulation of fan is controlled using the method for PWM, the method for specifically used dual H-bridge control, in four crystalline substances
There is signal end on brake tube two-by-two respectively as input, after the fan boosting at IGCT both ends, by adjusting control signal PWM ripples
Dutycycle, fan both end voltage is controlled, while to the Power Control of fan electromotor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of breathing based on BLE bluetooth modules detects intelligent mouth mask, it is characterised in that described based on BLE bluetooth modules
Breathing, which detects intelligent mouth mask, to be included：
Bluetooth module, by the built-in protocol stack write the single-chip microcomputer of algorithm and call single-chip microcomputer, realize to receive outside gas
The data of monitoring modular transmission are pressed, people's breath state of one day, and recording respiration status data are analyzed, to adjust the work(of fan
Rate；Simultaneously when there is host computer request, by the form of broadcast, Bluetooth signal is sent out；Host computer is when receiving signal
Using it as slave, interconnected with single-chip microcomputer, the passage different to single-chip microcomputer sends specific instruction, and host computer cycles through monolithic
The machine service condition of one day and breathing situation.
2. the breathing based on BLE bluetooth modules detects intelligent mouth mask as claimed in claim 1, it is characterised in that the air pressure
Monitoring modular, combine updating formula for gathering the pressure and temperature in mouth mask, and using air pressure-temperature to obtain in mouth mask
Air pressure change, by the change of the air pressure in mouth mask, to perceive the breathing situation of wearer.
3. the breathing based on BLE bluetooth modules detects intelligent mouth mask as claimed in claim 1, it is characterised in that described to be based on
The breathing of BLE bluetooth modules, which detects intelligent mouth mask, also to be included：
Boost module, lithium battery is boosted using DC-DC, by 3.7V lithium battery DC voltage, be converted into 6.0V and be used for
The voltage of power is provided for fan；
Voltage stabilizing module, for the voltage adjusted and stable boost module exports；
MICROUSB sockets, for being input voltage to lithium cell charging, its VCC positive voltage terminal, it is input to lithium cell charging mould
4 pins of block, for lithium cell charging；MICROUSB socket GND ends and main circuit are altogether；
Lithium cell charging module, for providing the energy for bluetooth module, Pressure monitoring module；
Shift knob, the working condition for master chip switch, one termination I/O port, a termination high level, LED and outside
Connection terminal, the instruction for working condition connect with external physical.
4. a kind of breathing based on BLE bluetooth modules as claimed in claim 1 detects the breathing detection method of intelligent mouth mask, it is special
Sign is that the breathing detection method includes：
Single-chip microcomputer, per 200ms interval scans, passes through real-time respiratory capacity and the average value ratio calculated using the mode of scanning
Compared with, the difference drawn is accumulated, the respiratory capacity average value in one minute is calculated using the integral formula of discrete domain, for
Discrete domain, integrated value are equal to
The respiratory capacity average data in one minute is recorded again；
The air rate adjustment of blower fan is carried out using closed-loop control system, the data collected by Pressure monitoring module are used as what is needed
Intake, single-chip microcomputer adjust the wind speed of fan, mouth mask air pressure inside is consistently equal to the value of standard atmospheric pressure.
5. breathing detection method as claimed in claim 4, it is characterised in that the algorithm for power modulation of fan uses the side of PWM
Method controls, and the method for specifically used dual H-bridge control, has signal end two-by-two respectively on four IGCTs as input, IGCT
After the fan boosting at both ends, by adjusting the dutycycle of control signal PWM ripples, fan both end voltage is controlled, while to fan
The Power Control of motor.
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| CN201711263190.6A CN107823812A (en) | 2017-11-30 | 2017-11-30 | A kind of breathing based on BLE bluetooth modules detects intelligent mouth mask |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711263190.6A CN107823812A (en) | 2017-11-30 | 2017-11-30 | A kind of breathing based on BLE bluetooth modules detects intelligent mouth mask |
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Family
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947114A (en) * | 2018-09-27 | 2020-04-03 | 皇家飞利浦有限公司 | Anti-pollution mask and control method |
| CN111617396A (en) * | 2020-05-07 | 2020-09-04 | 深圳迪致科技术有限公司 | Positive pressure respirator |
| CN111934723A (en) * | 2020-08-26 | 2020-11-13 | 上海仪电（集团）有限公司中央研究院 | Bypass interception Bluetooth communication device, method and application thereof |
| CN114225169A (en) * | 2021-12-16 | 2022-03-25 | 泰克曼(南京)电子有限公司 | Full-automatic breathing apparatus control system based on short distance wireless transmission |
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| CN114225169A (en) * | 2021-12-16 | 2022-03-25 | 泰克曼(南京)电子有限公司 | Full-automatic breathing apparatus control system based on short distance wireless transmission |
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Application publication date: 20180323 |