CN105361863B - Aircraft captain's physiological parameter monitoring system - Google Patents
Aircraft captain's physiological parameter monitoring system Download PDFInfo
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- CN105361863B CN105361863B CN201510957484.3A CN201510957484A CN105361863B CN 105361863 B CN105361863 B CN 105361863B CN 201510957484 A CN201510957484 A CN 201510957484A CN 105361863 B CN105361863 B CN 105361863B
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- signal
- captain
- infrared
- brain wave
- pulse
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/20—Workers
- A61B2503/22—Motor vehicles operators, e.g. drivers, pilots, captains
Abstract
The present invention relates to a kind of aircraft captain's physiological parameter monitoring system, described monitoring system includes pulse monitoring subsystem, brain wave Monitor And Control Subsystem and AT89C51 single-chip microcomputer, described pulse monitoring subsystem is for being monitored the captain's pulse state in driving cabin, described brain wave Monitor And Control Subsystem is for the captain's brain wave monitoring state in driving cabin, described AT89C51 single-chip microcomputer is connected respectively with described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem, monitored results according to described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem determines whether to carry out abnormal alarm.By means of the invention it is possible in the case of monitoring in driving cabin captain's physiological parameter and be abnormal, report to the police in time, thus avoid the generation of aircraft accident.
Description
Technical field
The present invention relates to medical monitoring field, particularly relating to a kind of aircraft captain's physiological parameter monitoring is
System.
Background technology
Aircraft (Fixed-wing Aircraft) refer to have wing, a tool or many tool engines by self
Power drive is advanced, and the density of self can be more than the airborne vehicle of air in space or air.If
The density of aircraft is less than air, and he is exactly balloon or dirigible.Without power set, can only
Aloft glide, be then referred to as aerodone.If the wing of aircraft is not fixed, rotate by wing and produce
Lift, it is simply that helicopter or gyroplane.
Fixed wing aircraft is modal airborne vehicle kenel.The source of power comprises piston engine, whirlpool
Wheel airscrew engine, turbofan or rocket engine etc..20 beginnings of the century, the U.S.
Lai Te brother is made that great contribution in the aircraft development history in the world.It was manufactured that in 1903
First relies on self power to carry out the aircraft " aviator No. " carried people to fly, and acquisition is taken a flight test
Success.Therefore they obtained US Congress's honorable mention in 1909.In the same year, they have established " Lay
Special Aircraft Company ".
After aircraft is invented, aircraft is increasingly becoming the indispensable vehicles of modern civilization.He
Deep change and have impact on the life of people, opens people and conquers blue sky history.From application angle
For on, aircraft can be divided into passenger plane, airfreighter, military aircraft and investigation aircraft.Passenger plane is
Become people to go on a tour the important vehicles of travelling, and fast with speed, the used time is short, efficiency high occupy solid
The passenger flow of determined number.
In prior art, the monitoring to aircraft is concentrated mainly on aircraft object itself, and to driving an airplane
Driver, especially captain, corresponding monitoring means are limited, more to birdman cabin
Video monitoring, even if having some monitoring means for driver's cabin, the most more of to cabin interior temperature
The detection of the limited physical quantitys such as degree, air pressure, lacks the detection of the physiological status to captain, less uses
Say that employing, when captain's abnormal state, notifies the communication mechanism of the personnel of passenger compartment in time.And,
In the prior art, the passenger compartment at captain place driving cabin and passenger place is generally locked by driving cabin position
Fixed, the driving condition passenger of captain lacks passage at all and goes to learn, passenger one aboard, substantially
Life is consigned to the captain in driving cabin and other human pilots.
But it practice, the driving condition of captain is extremely important, on the one hand, it is likely to occur captain's spirit
Overstretched or ill situation, if not notifying that other staff carry out rescuing and replacing driving, very
Easily cause the economic loss of casualties, on the other hand, it is also possible to captain's dangerous driving occurs even
Situation about hijacking a plane, at this moment the physiological parameter of usual captain there will be some omens, if it is possible to prediction machine
These long omens, perhaps the tragedy of MH370 will not occur.
As can be seen here, prior art exists techniques below problem: it is raw that (1) lacks effective captain
Reason condition detecting device；(2) effective physiological parameter early warning mechanism is lacked；(3) lack in danger
Moment can promptly trigger and help the urgency communication passage of passenger compartment personnel and PERCOM peripheral communication.
Therefore, the present invention proposes a kind of aircraft captain's physiological parameter monitoring system, it is possible to understand in time
The pulse signal of the captain of steering position and eeg signal, once exception occur, it is possible to starts tight
Anxious communication mechanism is to help the passenger of passenger compartment to seek external assistance, thus is effectively prevented from aircraft accident
Occur.
Summary of the invention
In order to solve the technical problem that prior art exists, the invention provides a kind of aircraft captain's physiology
Parameter monitoring system, utilizes targetedly, can be used for the pulse prison of the cramped construction of aircraft cockpit
Control equipment and brain wave monitoring device realize pulse information and the brain electricity of the captain to steering position respectively
The extraction of ripple information, and trigger alarm mechanism when exception, more it is essential that trigger when exception and take advantage of
Visitor's urgency traffic passage, helps passenger to relate to external assistance as early as possible, it is to avoid passenger falls within helpless state.
According to an aspect of the present invention, it is provided that a kind of aircraft captain's physiological parameter monitoring system, described
Monitoring system includes pulse monitoring subsystem, brain wave Monitor And Control Subsystem and AT89C51 single-chip microcomputer, institute
State pulse monitoring subsystem for the captain's pulse state in driving cabin is monitored, described brain wave
Monitor And Control Subsystem is for the captain's brain wave monitoring state in driving cabin, described AT89C51
Single-chip microcomputer is connected respectively with described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem, according to institute
State the monitored results of pulse monitoring subsystem and described brain wave Monitor And Control Subsystem and determine whether to carry out different
Often report to the police.
More specifically, in described aircraft captain's physiological parameter monitoring system, including: warning screen, with
AT89C51 single-chip microcomputer connects, and is used for when receiving abnormality signal, display button call character,
When receiving normal state signal, do not carry out display operation；Emergency button, is arranged on birdman
In the nacelle of cabin, it is positioned at described warning screen side；By key driving apparatus, it is connected with described emergency button,
For when the pressing operation received in described emergency button, sending power supply suppling signal；Channel radio
Letter equipment, is arranged in the nacelle of birdman cabin, is positioned at described warning screen side, for by outside people
The call-information of member is sent to the server of the operation management center of far-end by wireless communication link；
Switch switching equipment, is connected by key driving apparatus with described, when receiving described power supply suppling signal,
Open the interface channel between described independently-powered equipment and described Wireless Telecom Equipment to keep described
The supply of electric power to described Wireless Telecom Equipment of the independently-powered equipment；Independently-powered equipment, with described police
Display screen, described by key driving apparatus, described switch switching equipment and described Wireless Telecom Equipment connect respectively
Connect, the most described warning screen, described by key driving apparatus, described switch switching equipment and described wireless
Communication equipment provides supply of electric power；First resistance, one end is connected with 5V power supply, and the other end is with infrared
The anode of reception diode connects；Second resistance, one end is connected with 5V power supply, the other end and the 3rd
One end of resistance connects；3rd resistance, other end ground connection, and there is the resistance identical with the second resistance；
First two-way operational amplifier, for producing the another of the reference voltage of 2.5V, its anode and the second resistance
One end connects, and one end of negative terminal and the first electric capacity connects, output and the negative terminal of infrared-emitting diode
Connecting, negative terminal is also connected with the negative terminal of infrared-emitting diode；First electric capacity, other end ground connection；The
Four resistance, one end is connected with the negative terminal of infrared-emitting diode；Second two-way operational amplifier, anode
Being connected with the other end of the 4th resistance, negative terminal is connected with the anode of infrared receiving diode, and output is made
For pulse voltage；5th resistance, is connected in parallel on the second two-way operational amplifier negative terminal and the second two-way computing
Between amplifier out；Second electric capacity, is connected in parallel on the second two-way operational amplifier negative terminal and second pair
Between the operational amplifier output terminal of road；Infrared-emitting diode, is arranged on captain ear capillary position
Putting, be used for launching infrared light, the negative terminal of infrared-emitting diode connects with the anode of infrared receiving diode
Connect；Infrared receiving diode, is arranged on captain ear capillary position, is positioned at described infrared emission
The relative position of diode, the infrared light after receiving transmission captain ear capillary；Detection electricity
Pole, is arranged on captain's head, is arrived big by ionic conduction for detecting the neuron activity of brain
Cortex and the voltage variety that formed；Difference preamplifier, is connected with described detecting electrode, uses
In described voltage variety is amplified；Low pass filter, is connected with described difference preamplifier,
Voltage variety after amplifying carries out 100Hz LPF, to export the first filtering signal；
Two-stage power frequency notch filter, is connected with described low pass filter, for carrying out described first filtering signal
Two-stage notch filter processes, to export notched signal；High-pass filter, with described two-stage notch filter
Device connects, for described notched signal being carried out 0.1Hz high-pass filtering, to export the second filtering signal；
Level adjustment circuit, is connected with described high-pass filter, and described second filtering signal is carried out level tune
Joint processes, and thinks that subsequent A/D conversion is prepared；Analog to digital conversion circuit, with described level adjustment circuit
Connect, the second filtering signal after level adjustment processes is carried out the analog-to-digital conversion of 8, to obtain
Obtain the brain wave data signal of captain；AT89C51 single-chip microcomputer, uses parallel input/output interface and institute
State analog to digital conversion circuit to connect to obtain described brain wave data signal, use serial input-output interface (SIO)
It is connected with the output of described second two-way operational amplifier to obtain described pulse voltage, when described arteries and veins
Fight voltage outside default pulse range time, send cacosphyxia identification signal, when described brain wave number
When word signal occurs α ripple and β ripple, export shallow sleep and identify signal, when described brain wave numeral is believed
When θ ripple and δ ripple occur in number, export deep sleep identification signal；Wherein, when AT89C51 single-chip microcomputer
When sending cacosphyxia identification signal, shallow sleep identification signal or deep sleep identification signal, AT89C51
Single-chip microcomputer is simultaneously emitted by abnormality signal, and otherwise, AT89C51 single-chip microcomputer is simultaneously emitted by normal condition
Signal；Between infrared-emitting diode and infrared receiving diode during pulseless, pulse voltage is
2.5V, when there is, between infrared-emitting diode and infrared receiving diode, the pulse beated, blood vessels
Making ear's light transmission be deteriorated, pulse voltage is more than 2.5V.
More specifically, in described aircraft captain's physiological parameter monitoring system: the first two-way operation amplifier
Device is the two-way operational amplifier of TI company.
More specifically, in described aircraft captain's physiological parameter monitoring system: the second two-way operation amplifier
Device is the two-way operational amplifier of TI company.
More specifically, in described aircraft captain's physiological parameter monitoring system: described two-stage notch filter
Device uses bandpass filtering to offset mode and designs, and divides for the power frequency offset in described first filtering signal
Amount.
More specifically, in described aircraft captain's physiological parameter monitoring system: described power frequency component is
50Hz frequency component.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the structure square frame of the first embodiment of aircraft captain's physiological parameter monitoring system of the present invention
Figure.
Reference: 1 pulse monitoring subsystem；2 brain wave Monitor And Control Subsystems；3 AT89C51 are mono-
Sheet machine
Detailed description of the invention
Embodiment to aircraft captain's physiological parameter monitoring system of the present invention below with reference to accompanying drawings
It is described in detail.
At present, the aircraft that civil aviaton uses mostly is jet airliner, and the speed per hour of jet airliner is 800,000
About meter, mobility is high.Aircraft flight is not intercepted by high mountain, river, desert, ocean, and
Can be according to the frequency increase at any time of traveller's quantity.Adding up according to International Civil Aviation Organization, the most every hundred million visitors are public in civil aviaton
In death toll be 0.04 people, be ordinary traffic mode death tolls 1/tens to several
One of percentage, is the transportation trade more safer than train.
Although the accident rate of aircraft is lower than train, but aircraft once has an accident, it will have the few to survive
Even nobody survives.And aircraft is out of touch with ground, just cannot safe flight.Therefore drive and fly
The captain of machine needs to do some training very often and keep the absorbed power of height.But, it is different that captain also there will be state
Normal situation occurs, and has the factor of subjectivity, also has objective factor, and this abnormality is joined at physiology
Some omens all can occur on number.And prior art does not has the detection scheme of these omens, less
There is provided and the extraneous urgency traffic contacted mechanism for passenger in time after detection omen with saying.
To this end, the present invention has built a kind of aircraft captain's physiological parameter monitoring system, use high-precision
Pulse and the brain wave parameter of captain are examined by pulse monitoring equipment and brain wave monitoring device in time
Survey and report to the police, and when recognizing captain's abnormal state, starting urgency traffic equipment in time, it is simple to take advantage of
Visitor quickly cries for help escape.
Fig. 1 is the structure square frame of the first embodiment of aircraft captain's physiological parameter monitoring system of the present invention
Figure, described monitoring system includes pulse monitoring subsystem, brain wave Monitor And Control Subsystem and AT89C51
Single-chip microcomputer, described pulse monitoring subsystem is used for being monitored the captain's pulse state in driving cabin,
Described brain wave Monitor And Control Subsystem is for the captain's brain wave monitoring state in driving cabin, described
AT89C51 single-chip microcomputer connects respectively with described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem
Connect, determine according to the monitored results of described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem and be
No carry out abnormal alarm.
Then, the second embodiment of aircraft captain's physiological parameter monitoring system of the present invention is carried out specifically
Explanation.
Described monitoring system includes: warning screen, is connected with AT89C51 single-chip microcomputer, for receiving
During abnormality signal, display button call character, when receiving normal state signal, do not carry out
Display operation；Emergency button, is arranged in the nacelle of birdman cabin, is positioned at described warning screen side；
By key driving apparatus, be connected with described emergency button, for receive in described emergency button by
During press operation, send power supply suppling signal.
Described monitoring system includes: Wireless Telecom Equipment, is arranged in the nacelle of birdman cabin, is positioned at
Described warning screen side, for being sent to the call-information of external staff far by wireless communication link
The server of the operation management center of end；Switch switching equipment, is connected by key driving apparatus with described,
When receiving described power supply suppling signal, open described independently-powered equipment and described radio communication sets
Interface channel between Bei is to keep the described independently-powered equipment electric power to described Wireless Telecom Equipment
Supply.
Described monitoring system includes: independently-powered equipment, drives set with described warning screen, described button
Switch switching equipment standby, described and described Wireless Telecom Equipment connect respectively, the most described warning screen,
Described by key driving apparatus, described switch switching equipment and described Wireless Telecom Equipment provide electric power supply
Should.
Described monitoring system includes: the first resistance, and one end is connected with 5V power supply, and the other end is with infrared
The anode of reception diode connects；Second resistance, one end is connected with 5V power supply, the other end and the 3rd
One end of resistance connects；3rd resistance, other end ground connection, and there is the resistance identical with the second resistance；
First two-way operational amplifier, for producing the another of the reference voltage of 2.5V, its anode and the second resistance
One end connects, and one end of negative terminal and the first electric capacity connects, output and the negative terminal of infrared-emitting diode
Connecting, negative terminal is also connected with the negative terminal of infrared-emitting diode；First electric capacity, other end ground connection；The
Four resistance, one end is connected with the negative terminal of infrared-emitting diode；Second two-way operational amplifier, anode
Being connected with the other end of the 4th resistance, negative terminal is connected with the anode of infrared receiving diode, and output is made
For pulse voltage；5th resistance, is connected in parallel on the second two-way operational amplifier negative terminal and the second two-way computing
Between amplifier out；Second electric capacity, is connected in parallel on the second two-way operational amplifier negative terminal and second pair
Between the operational amplifier output terminal of road.
Described monitoring system includes: infrared-emitting diode, is arranged on captain ear capillary position,
For launching infrared light, the negative terminal of infrared-emitting diode is connected with the anode of infrared receiving diode；
Infrared receiving diode, is arranged on captain ear capillary position, is positioned at described infrared emission two pole
The relative position of pipe, the infrared light after receiving transmission captain ear capillary；Detecting electrode,
It is arranged on captain's head, arrives brain skin for detecting the neuron activity of brain by ionic conduction
Layer and the voltage variety that formed；Difference preamplifier, is connected with described detecting electrode, for right
Described voltage variety is amplified.
Described monitoring system includes: low pass filter, is connected with described difference preamplifier, is used for
Voltage variety after amplifying carries out 100Hz LPF, to export the first filtering signal；Two-stage
Power frequency notch filter, is connected with described low pass filter, for described first filtering signal is carried out two-stage
Notch filter processes, to export notched signal；High-pass filter, with described two-stage power frequency notch filter even
Connect, for described notched signal being carried out 0.1Hz high-pass filtering, to export the second filtering signal.
Described monitoring system includes: level adjustment circuit, is connected with described high-pass filter, to described
Second filtering signal carries out level adjustment process, thinks that subsequent A/D conversion is prepared；Analog-to-digital conversion electricity
Road, is connected with described level adjustment circuit, is entered by the second filtering signal after level adjustment processes
The analog-to-digital conversion that row is 8, to obtain the brain wave data signal of captain.
Described monitoring system includes: AT89C51 single-chip microcomputer, uses parallel input/output interface with described
Analog to digital conversion circuit connect to obtain described brain wave data signal, use serial input-output interface (SIO) and
The output of described second two-way operational amplifier connects to obtain described pulse voltage, when described pulse
When voltage is outside default pulse range, send cacosphyxia identification signal, when described brain wave numeral
When signal occurs α ripple and β ripple, export shallow sleep and identify signal, when described brain wave data signal
In time θ ripple and δ ripple occur, export deep sleep identification signal.
Wherein, when AT89C51 single-chip microcomputer send cacosphyxia identification signal, shallow sleep identification signal or
During deep sleep identification signal, AT89C51 single-chip microcomputer is simultaneously emitted by abnormality signal, otherwise,
AT89C51 single-chip microcomputer is simultaneously emitted by normal state signal；When infrared-emitting diode and infrared receiver two
Between the pipe of pole during pulseless, pulse voltage is 2.5V, when infrared-emitting diode and infrared receiver two pole
When there is, between pipe, the pulse beated, blood vessels make ear's light transmission be deteriorated, and pulse voltage is more than 2.5V.
Alternatively, in described monitoring system: the first two-way operational amplifier is the two-way fortune of TI company
Calculate amplifier；Second two-way operational amplifier is the two-way operational amplifier of TI company；Described two-stage work
Frequently trapper uses bandpass filtering counteracting mode to design, for offsetting the work in described first filtering signal
Frequency component；And, described power frequency component is chosen as 50Hz frequency component.
It addition, wave filter, as the term suggests, it is the device that ripple is filtered." ripple " be one non-
Physical concept the most widely, at electronic technology field, " ripple " is narrowly confined to refer in particular to describe respectively
Plant the process of the value fluctuations in time of physical quantity.The effect by various kinds of sensors of this process,
It is converted into the function of time of voltage or electric current, the time waveform of the most various physical quantitys, or claims
For signal.Because the independent variable time is continuous value, so referred to as continuous time signal, again
It is referred to as analog signal habitually.
Along with the generation of digital electronic computer technology with develop rapidly, for the ease of computer to letter
Number process, create and under sampling theorem instructs, continuous time signal is transformed into discrete time letter
Number complete theory and method.It is to say, can only use original analog signal when series of discrete
Between sample value in coordinate points express primary signal and do not lose any information, ripple, waveform, signal this
Since what a little concepts were expressed is the change of various physical quantitys in objective world, it is exactly that modern society relies naturally
Carrier with the various information of existence.Information needs to propagate, and lean on is exactly the transmission of waveform signal.Letter
Number it generation, change, each link of transmitting be likely to be due to environment and the existence of interference and
Distortion, the most in quite a number of cases, this distortion is the most serious, causes signal and is taken
The information of band is embedded in the middle of noise dearly.In order to filter these noises, recover signal originally,
Need to use various wave filter to be filtered processing.
Use aircraft captain's physiological parameter monitoring system of the present invention, for captain's physiology in prior art
State is difficult to detect and lack the technical problem of passenger's urgency traffic equipment, uses high-precision pulse
Monitoring device and brain wave monitoring device to the pulse of captain and brain wave parameter detects in time and
Reporting to the police, introduce physiological parameter early warning mechanism and urgency traffic mechanism, in helping passenger compartment, personnel learn machine
Long abnormality also contacts foreign aid, further to be rapidly separated hazardous situation.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-mentioned enforcement
Example is not limited to the present invention.For any those of ordinary skill in the art, without departing from
Under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above to the technology of the present invention
Scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example
Any simple modification, equivalent variations and the modification done, all still falls within technical solution of the present invention protection
In the range of.
Claims (1)
1. an aircraft captain physiological parameter monitoring system, described monitoring system includes pulse monitoring
System, brain wave Monitor And Control Subsystem and AT89C51 single-chip microcomputer, described pulse monitoring subsystem is for right
Captain's pulse state in driving cabin is monitored, and described brain wave Monitor And Control Subsystem is for driving cabin
Interior captain's brain wave monitoring state, described AT89C51 single-chip microcomputer and described pulse monitoring subsystem
System and described brain wave Monitor And Control Subsystem connect, respectively according to described pulse monitoring subsystem and described brain
The monitored results of electric wave Monitor And Control Subsystem determines whether to carry out abnormal alarm；
It is characterized in that,
Warning screen, is connected with AT89C51 single-chip microcomputer, for when receiving abnormality signal, aobvious
Show push-to-talk character, when receiving normal state signal, do not carry out display operation；
Emergency button, is arranged in the nacelle of birdman cabin, is positioned at described warning screen side；
By key driving apparatus, it is connected with described emergency button, for receiving described emergency button
Pressing operation time, send power supply suppling signal；
Wireless Telecom Equipment, is arranged in the nacelle of birdman cabin, is positioned at described warning screen side, uses
In the operation management center that the call-information of external staff is sent to by wireless communication link far-end
The server at place；
Switch switching equipment, is connected by key driving apparatus with described, is receiving described power supply supply letter
Number time, open interface channel between described independently-powered equipment and described Wireless Telecom Equipment to keep
The supply of electric power to described Wireless Telecom Equipment of the described independently-powered equipment；
Independently-powered equipment, with described warning screen, described by key driving apparatus, described switch switching set
Standby and described Wireless Telecom Equipment connects respectively, the most described warning screen, described by key driving apparatus,
Described switch switching equipment and described Wireless Telecom Equipment provide supply of electric power；
First resistance, one end is connected with 5V power supply, and the other end connects with the anode of infrared receiving diode
Connect；
Second resistance, one end is connected with 5V power supply, and one end of the other end and the 3rd resistance connects；
3rd resistance, other end ground connection, and there is the resistance identical with the second resistance；
First two-way operational amplifier, for producing the reference voltage of 2.5V, its anode and the second resistance
The other end connect, one end of negative terminal and the first electric capacity connects, output and infrared-emitting diode
Negative terminal connects, and negative terminal is also connected with the negative terminal of infrared-emitting diode；
First electric capacity, other end ground connection；
4th resistance, one end is connected with the negative terminal of infrared-emitting diode；
Second two-way operational amplifier, the other end of anode and the 4th resistance connects, and negative terminal connects with infrared
The anode receiving diode connects, and output is as pulse voltage；
5th resistance, is connected in parallel on the second two-way operational amplifier negative terminal and the second two-way operational amplifier is defeated
Go out between end；
Second electric capacity, is connected in parallel on the second two-way operational amplifier negative terminal and the second two-way operational amplifier is defeated
Go out between end；
Infrared-emitting diode, is arranged on captain ear capillary position, is used for launching infrared light,
The negative terminal of infrared-emitting diode is connected with the anode of infrared receiving diode；
Infrared receiving diode, is arranged on captain ear capillary position, is positioned at described infrared emission
The relative position of diode, the infrared light after receiving transmission captain ear capillary；
Detecting electrode, is arranged on captain's head, passes through ion for detecting the neuron activity of brain
The voltage variety that conduction arrives cerebral cortex and formed；
Difference preamplifier, is connected with described detecting electrode, for carrying out described voltage variety
Amplify；
Low pass filter, is connected with described difference preamplifier, the voltage change after amplifying
Amount carries out 100Hz LPF, to export the first filtering signal；
Two-stage power frequency notch filter, is connected with described low pass filter, for described first filtering signal
Carry out two-stage notch filter process, to export notched signal；
High-pass filter, is connected with described two-stage power frequency notch filter, for carrying out described notched signal
0.1Hz high-pass filtering, to export the second filtering signal；
Level adjustment circuit, is connected with described high-pass filter, and described second filtering signal is carried out electricity
Heibei provincial opera joint processes, and thinks that subsequent A/D conversion is prepared；
Analog to digital conversion circuit, is connected with described level adjustment circuit, by after level adjustment processes
Second filtering signal carries out the analog-to-digital conversion of 8, to obtain the brain wave data signal of captain；
AT89C51 single-chip microcomputer, use parallel input/output interface be connected with analog-digital conversion circuit as described with
Obtain described brain wave data signal, use serial input-output interface (SIO) to put with described second two-way computing
The output of big device connects to obtain described pulse voltage, when described pulse voltage is in default pulse range
Outside time, send cacosphyxia identification signal, when α ripple and β occurs in described brain wave data signal
During ripple, export shallow sleep and identify signal, when described brain wave data signal occurs θ ripple and δ ripple,
Output deep sleep identification signal；
Wherein, when AT89C51 single-chip microcomputer send cacosphyxia identification signal, shallow sleep identification signal or
During deep sleep identification signal, AT89C51 single-chip microcomputer is simultaneously emitted by abnormality signal, otherwise,
AT89C51 single-chip microcomputer is simultaneously emitted by normal state signal；
Wherein, between infrared-emitting diode and infrared receiving diode during pulseless, pulse voltage
For 2.5V, when there is, between infrared-emitting diode and infrared receiving diode, the pulse beated, blood
Mai Shi ear light transmission is deteriorated, and pulse voltage is more than 2.5V.
Priority Applications (1)
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| CN112450950B (en) * | 2020-12-10 | 2021-10-22 | 南京航空航天大学 | Brain-computer aided analysis method and system for aviation accident |
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