CN105496405A - Spring type emergency alarm method used on airplane - Google Patents
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- CN105496405A CN105496405A CN201610001953.9A CN201610001953A CN105496405A CN 105496405 A CN105496405 A CN 105496405A CN 201610001953 A CN201610001953 A CN 201610001953A CN 105496405 A CN105496405 A CN 105496405A
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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
- A61B5/24—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]
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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
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
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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
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4812—Detecting sleep stages or cycles
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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
- A61B5/72—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
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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
- A61B5/72—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
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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
- A61B5/74—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
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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
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7465—Arrangements for interactive communication between patient and care services, e.g. by using a telephone network
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- 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
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Abstract
The invention relates to a spring type emergency alarm method used on an airplane. The method comprises: 1) providing a spring type emergency alarm device used on the airplane, wherein the alarm device comprises a brain wave detection sub-device, a spring structure, one-key communication equipment, a solar battery and an ARM11 processing chip, the brain wave detection sub-device is used for detecting brain wave information of the captain in the cockpit of the airplane, the ARM11 processing chip is connected with the brain wave detection sub-device, whether to control the spring structure to eject out of the one-key communication equipment or not is determined according to a detection result of the brain wave detection sub-device, and the solar battery is used for supplying power to the one-key communication equipment; and 2) using the alarm device.
Description
Technical field
The present invention relates to brain wave detection field, particularly relate to a kind of spring emergency alarm method on aircraft.
Background technology
In prior art, the aircraft that civil aviaton uses mostly is jet airliner, and the speed per hour of jet airliner is about 800 kms, and mobility is high.Aircraft flight is not subject to the obstruct of high mountain, river, desert, ocean, and can according to the frequency increase at any time of traveller's quantity.According to International Civil Aviation Organization's statistics, the death toll of average every hundred million seat-kilometers of civil aviaton is 0.04 people, and being one 1/tens to several percent of ordinary traffic mode death tolls, is the transportation trade more safer than train.
Although the accident rate of aircraft is lower than train, aircraft, once accident, will have the few and survive even that nobody survives.And aircraft and ground out of touch, just cannot safe flight.Therefore the captain driven an airplane needs to do some training very often and keeps the absorbed power of height.But the situation that captain also there will be abnormal state occurs, and have subjective factor, also have objective factor, this abnormality all can occur some omens in physiological parameter.And in prior art, do not have the detection scheme of these omens, say nothing of after detecting omen in time for passenger provides the urgency traffic mechanism contacted with the external world.
For this reason, the present invention proposes a kind of spring emergency alarm device on aircraft, high-precision blood Monitoring Oxygen Ventilation equipment and brain wave watch-dog is adopted to detect in time the blood oxygen saturation of captain and brain wave parameter and report to the police, and when recognizing captain's abnormal state, timely startup urgency traffic equipment, for the passenger be isolated in outside driving cabin provides the chance conversed with ground, thus reduce the probability of aviation accident generation.
Summary of the invention
In order to solve the technical problem that prior art exists, the invention provides a kind of spring emergency alarm device on aircraft, efficient blood Monitoring Oxygen Ventilation equipment and brain wave watch-dog is utilized to measure the multinomial physiological data of captain, report to the police when physiological data occurs abnormal, simultaneously for passenger starts spring verbal system, make passenger can replace captain and keep the immediate communication with external flight management platform.
According to an aspect of the present invention, provide a kind of spring emergency alarm device on aircraft, described alarm device comprises brain wave detection sub-means, spring structure, push to talk communication equipment, solar storage battery and ARM11 process chip, described brain wave detection sub-means is used for detecting the brain wave information of the captain in aircraft cockpit, described ARM11 process chip is connected with described brain wave detection sub-means, determine whether that controlling described spring structure ejects described push to talk communication equipment according to the testing result of described brain wave detection sub-means, described solar storage battery is used for powering for described push to talk communication equipment.
More specifically, in described spring emergency alarm device on aircraft, also comprise: detecting electrode, be arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed; Difference preamplifier, is connected with described detecting electrode, for amplifying described voltage variety; Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal; Two-stage power frequency notch filter, is connected with described low pass filter, for carrying out the process of two-stage notch filter, to export notched signal to described first filtering signal; High pass filter, is connected with described two-stage power frequency notch filter, for carrying out 0.1Hz high-pass filtering to described notched signal, to export the second filtering signal; Level adjustment circuit, is connected with described high pass filter, carries out level adjustment process to described second filtering signal, thinks that subsequent A/D conversion is prepared; Analog to digital conversion circuit, is connected with described level adjustment circuit, the second filtering signal after level adjustment process is carried out the analog digital conversion of 8, to obtain the brain wave digital signal of captain; Near infrared light emitter, is arranged on captain's finger fingertip blood capillary position, is connected with light source driving circuit, for the LED control signal sent based on light source driving circuit, launches near infrared light; Light source driving circuit, is connected with described near infrared light emitter, for sending LED control signal to described near infrared light emitter; Near infrared light receptor, is arranged on captain's finger fingertip, is positioned at the relative position of described light emitting diode, for receiving the near infrared light after transmission captain finger fingertip blood capillary; Parameter extraction equipment, be connected respectively with described near infrared light emitter and described near infrared light receptor, based on the light attenuation degree of the near infrared light of near infrared light and the transmission of launching, the HbO2 Oxyhemoglobin content in calculating captain blood and reduced hemoglobin content; Push to talk communication equipment, comprise assignment key and wireless communication interface, described assignment key is used for when external staff presses, automatically open described wireless communication interface to receive the call-information of external staff, described wireless communication interface is used for the server at the place of the flight operations administrative center call-information of external staff being sent to far-end by wireless communication link; Spring structure, maintains on described push to talk communication equipment; Spring driving equipment, be connected respectively with ARM11 process chip and spring structure, for when receiving abnormality signal, flick described spring structure to be pushed from cabin, birdman cabin body deep inside by described push to talk communication equipment, when receiving normal state signal, the described spring structure that bounces back is to be retracted to cabin, birdman cabin body deep inside by described push to talk communication equipment; Supply of electric power switch, be connected respectively with ARM11 process chip, push to talk communication equipment and solar storage battery, for when receiving abnormality signal, recover the supply of electric power of described solar storage battery to described push to talk communication equipment, when receiving normal state signal, disconnect the supply of electric power of described solar storage battery to described push to talk communication equipment; Solar storage battery, is connected respectively with described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch, is only described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch and provides supply of electric power; ARM11 process chip, with described parameter extraction equipment connection, based on the blood oxygen saturation of HbO2 Oxyhemoglobin content and reduced hemoglobin cubage captain, adopts parallel communication interface to be connected to receive brain wave digital signal with analog-digital conversion circuit as described; Wherein, when there is α ripple and β ripple in described brain wave digital signal in described ARM11 process chip, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal, when described blood oxygen saturation is at default blood oxygen saturation upper concentration, send the too high identification signal of blood oxygen saturation, when described blood oxygen saturation is at default blood oxygen saturation least concentration, send the too low identification signal of blood oxygen saturation; When ARM11 process chip sends the too low identification signal of shallow sleep identification signal, deep sleep identification signal, the too high identification signal of blood oxygen saturation or blood oxygen saturation, ARM11 process chip sends abnormality signal simultaneously, otherwise ARM11 process chip sends normal state signal simultaneously.
More specifically, in described spring emergency alarm device on aircraft: described two-stage power frequency notch filter adopts bandpass filtering to offset patten's design, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component.
More specifically, in described spring emergency alarm device on aircraft: wireless communication interface is VHF communication interface.
More specifically, in described spring emergency alarm device on aircraft: wireless communication interface is high-frequency communication interface.
More specifically, in described spring emergency alarm device on aircraft: wireless communication interface is satellite communication interface.
More specifically, in described spring emergency alarm device on aircraft: described assignment key is the virtual push button on mechanical button or touch screen.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the first embodiment of the spring emergency alarm device on aircraft of the present invention.
Reference numeral: 1 brain wave detection sub-means; 2 spring structures; 3 push to talk communication equipment; 4 solar storage batteries; 5ARM11 process chip
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the spring emergency alarm device on aircraft of the present invention is described in detail.
Fixed wing airplane is modal airborne vehicle kenel.The source of power comprises piston engine, turboprop, turbofan or rocket engine etc.20 beginnings of the century, the Lai Te brother of the U.S. has made great contribution in the aircraft development history in the world.Having produced first in 1903 relies on self power to carry out the aircraft " aviator No. " carried people to fly, and acquisition is made a successful trial flight.Therefore they obtained US Congress's honorable mention in 1909.In the same year, they have established " Lai Te Aircraft Company ".
After aircraft invention, aircraft becomes the indispensable vehicles of modern civilization day by day.The change that he is deep and have impact on the life of people, opens people and conquers blue sky history.From application point, aircraft can be divided into passenger plane, airfreighter, military aircraft and investigation aircraft.Passenger plane has become people and to have gone on a tour the important vehicles of travelling, fast with speed, the used time is short, efficiency is high and occupy the passenger flow of fixed qty.
In prior art, aircraft object itself is mainly concentrated on to the monitoring of aircraft, and to the driver driven an airplane, especially captain, corresponding monitoring means are limited, it is more the video monitoring to birdman cabin, even if having some for the monitoring means of driver's cabin, also is mostly detections to the limited physical quantity such as cabin interior temperature, air pressure, lack the detection to the physiological status of captain, say nothing of and adopt when captain's abnormal state, notify 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 usually by driving cabin locking position, and the driving condition passenger of captain lacks passage at all and goes to learn, passenger one aboard, consigns to the captain in driving cabin and other human pilots substantially by life.
But in fact; the driving condition of captain is extremely important; on the one hand, captain's spirit hypertonicity or ill situation may be there is, if do not notify that other staff carry out rescuing and replacing driving; be easy to the economic loss caused casualties; on the other hand, also may occur the situation that captain's dangerous driving is even hijacked a plane, at this moment the physiological parameter of captain there will be some omens usually; if can predict these omens of captain, perhaps the tragedy of MH370 can not occur.
As can be seen here, there is following technical problem in prior art: (1) lacks effective captain's physiological status checkout equipment; (2) effective physiological parameter early warning mechanism is lacked; (3) shortage promptly can trigger at hour of danger and help the urgency communication passage of passenger compartment personnel and PERCOM peripheral communication.
For this reason, the present invention has built a kind of aircraft captain physiological parameter monitoring system, blood oxygen saturation data and the eeg signal of the captain of steering position can be understood in time, abnormal once appearance, button urgency communication mechanism can be started to help the passenger of passenger compartment to seek external assistance.
Fig. 1 is the block diagram of the first embodiment of the spring emergency alarm device on aircraft of the present invention, described alarm device comprises brain wave detection sub-means, spring structure, push to talk communication equipment, solar storage battery and ARM11 process chip, described brain wave detection sub-means is used for detecting the brain wave information of the captain in aircraft cockpit, described ARM11 process chip is connected with described brain wave detection sub-means, determine whether that controlling described spring structure ejects described push to talk communication equipment according to the testing result of described brain wave detection sub-means, described solar storage battery is used for powering for described push to talk communication equipment.
Then, continue to be further detailed the second embodiment of the spring emergency alarm device on aircraft of the present invention.
Described alarm device comprises: detecting electrode, is arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed; Difference preamplifier, is connected with described detecting electrode, for amplifying described voltage variety; Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal; Two-stage power frequency notch filter, is connected with described low pass filter, for carrying out the process of two-stage notch filter, to export notched signal to described first filtering signal; High pass filter, is connected with described two-stage power frequency notch filter, for carrying out 0.1Hz high-pass filtering to described notched signal, to export the second filtering signal.
Described alarm device comprises: level adjustment circuit, is connected with described high pass filter, carries out level adjustment process to described second filtering signal, thinks that subsequent A/D conversion is prepared; Analog to digital conversion circuit, is connected with described level adjustment circuit, the second filtering signal after level adjustment process is carried out the analog digital conversion of 8, to obtain the brain wave digital signal of captain; Near infrared light emitter, is arranged on captain's finger fingertip blood capillary position, is connected with light source driving circuit, for the LED control signal sent based on light source driving circuit, launches near infrared light; Light source driving circuit, is connected with described near infrared light emitter, for sending LED control signal to described near infrared light emitter; Near infrared light receptor, is arranged on captain's finger fingertip, is positioned at the relative position of described light emitting diode, for receiving the near infrared light after transmission captain finger fingertip blood capillary.
Described alarm device comprises: parameter extraction equipment, be connected respectively with described near infrared light emitter and described near infrared light receptor, based on the light attenuation degree of the near infrared light of near infrared light and the transmission of launching, the HbO2 Oxyhemoglobin content in calculating captain blood and reduced hemoglobin content; Push to talk communication equipment, comprise assignment key and wireless communication interface, described assignment key is used for when external staff presses, automatically open described wireless communication interface to receive the call-information of external staff, described wireless communication interface is used for the server at the place of the flight operations administrative center call-information of external staff being sent to far-end by wireless communication link.
Described alarm device comprises: spring structure, maintains on described push to talk communication equipment; Spring driving equipment, be connected respectively with ARM11 process chip and spring structure, for when receiving abnormality signal, flick described spring structure to be pushed from cabin, birdman cabin body deep inside by described push to talk communication equipment, when receiving normal state signal, the described spring structure that bounces back is to be retracted to cabin, birdman cabin body deep inside by described push to talk communication equipment.
Described alarm device comprises: supply of electric power switch, be connected respectively with ARM11 process chip, push to talk communication equipment and solar storage battery, for when receiving abnormality signal, recover the supply of electric power of described solar storage battery to described push to talk communication equipment, when receiving normal state signal, disconnect the supply of electric power of described solar storage battery to described push to talk communication equipment; Solar storage battery, is connected respectively with described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch, is only described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch and provides supply of electric power.
Described alarm device comprises: ARM11 process chip, with described parameter extraction equipment connection, based on the blood oxygen saturation of HbO2 Oxyhemoglobin content and reduced hemoglobin cubage captain, parallel communication interface is adopted to be connected to receive brain wave digital signal with analog-digital conversion circuit as described.
Wherein, when there is α ripple and β ripple in described brain wave digital signal in described ARM11 process chip, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal, when described blood oxygen saturation is at default blood oxygen saturation upper concentration, send the too high identification signal of blood oxygen saturation, when described blood oxygen saturation is at default blood oxygen saturation least concentration, send the too low identification signal of blood oxygen saturation; When ARM11 process chip sends the too low identification signal of shallow sleep identification signal, deep sleep identification signal, the too high identification signal of blood oxygen saturation or blood oxygen saturation, ARM11 process chip sends abnormality signal simultaneously, otherwise ARM11 process chip sends normal state signal simultaneously.
Alternatively, in described alarm device: described two-stage power frequency notch filter adopts bandpass filtering to offset patten's design, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component; Wireless communication interface is VHF communication interface; Wireless communication interface is high-frequency communication interface; Wireless communication interface is satellite communication interface; And alternatively, described assignment key is the virtual push button on mechanical button or touch screen.
In addition, blood oxygen saturation (SpO2) is that the capacity of the HbO2 Oxyhemoglobin (HbO2) combined by oxygen in blood accounts for whole combinative hemoglobin (Hb, hemoglobin) percentage ratio of capacity, the i.e. concentration of blood oxygen in blood, it is the important physiological parameter of breath cycle.And functional oxygen saturation is HbO2 concentration and the ratio of HbO2+Hb concentration, be different from percent shared by HbO2 Oxyhemoglobin.Therefore, monitor arterial oxygen saturation (SaO2) to estimate the oxygenate of lung and hemoglobin oxygen carrying capacity.The blood oxygen saturation of normal human's arterial blood is 98%, and venous blood is 75%.
The metabolic processes of human body is biological oxidation process, and oxygen required in metabolic processes, enter blood of human body by respiratory system, with the hemoglobin (Hb) in blood rbc, be combined into HbO2 Oxyhemoglobin (HbO2), then be transported to partes corporis humani and divide in histiocyte and go.Namely the ability that blood carries delivering oxygen is weighed by blood oxygen saturation.
Adopt the spring emergency alarm device on aircraft of the present invention, be difficult to detect and lack the technical problem of passenger's urgency traffic equipment for captain's physiological status in prior art, high-precision blood oxygen saturation watch-dog and brain wave watch-dog is adopted to detect in time the blood oxygen saturation parameter of captain and brain wave parameter and report to the police, introduce physiological parameter early warning mechanism and urgency traffic mechanism, help personnel in passenger compartment to learn captain's abnormality, and for passenger provide can with the urgency communication passage of external call.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (7)
1. the spring emergency alarm method on aircraft, the method comprises:
1) a kind of spring emergency alarm device on aircraft is provided, described alarm device comprises brain wave detection sub-means, spring structure, push to talk communication equipment, solar storage battery and ARM11 process chip, described brain wave detection sub-means is used for detecting the brain wave information of the captain in aircraft cockpit, described ARM11 process chip is connected with described brain wave detection sub-means, determine whether that controlling described spring structure ejects described push to talk communication equipment according to the testing result of described brain wave detection sub-means, described solar storage battery is used for powering for described push to talk communication equipment,
2) described alarm device is used.
2. the method for claim 1, is characterized in that, described alarm device comprises:
Detecting electrode, is arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed;
Difference preamplifier, is connected with described detecting electrode, for amplifying described voltage variety;
Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal;
Two-stage power frequency notch filter, is connected with described low pass filter, for carrying out the process of two-stage notch filter, to export notched signal to described first filtering signal;
High pass filter, is connected with described two-stage power frequency notch filter, for carrying out 0.1Hz high-pass filtering to described notched signal, to export the second filtering signal;
Level adjustment circuit, is connected with described high pass filter, carries out level adjustment process to described second filtering signal, thinks that subsequent A/D conversion is prepared;
Analog to digital conversion circuit, is connected with described level adjustment circuit, the second filtering signal after level adjustment process is carried out the analog digital conversion of 8, to obtain the brain wave digital signal of captain;
Near infrared light emitter, is arranged on captain's finger fingertip blood capillary position, is connected with light source driving circuit, for the LED control signal sent based on light source driving circuit, launches near infrared light;
Light source driving circuit, is connected with described near infrared light emitter, for sending LED control signal to described near infrared light emitter;
Near infrared light receptor, is arranged on captain's finger fingertip, is positioned at the relative position of described light emitting diode, for receiving the near infrared light after transmission captain finger fingertip blood capillary;
Parameter extraction equipment, be connected respectively with described near infrared light emitter and described near infrared light receptor, based on the light attenuation degree of the near infrared light of near infrared light and the transmission of launching, the HbO2 Oxyhemoglobin content in calculating captain blood and reduced hemoglobin content;
Push to talk communication equipment, comprise assignment key and wireless communication interface, described assignment key is used for when external staff presses, automatically open described wireless communication interface to receive the call-information of external staff, described wireless communication interface is used for the server at the place of the flight operations administrative center call-information of external staff being sent to far-end by wireless communication link;
Spring structure, maintains on described push to talk communication equipment;
Spring driving equipment, be connected respectively with ARM11 process chip and spring structure, for when receiving abnormality signal, flick described spring structure to be pushed from cabin, birdman cabin body deep inside by described push to talk communication equipment, when receiving normal state signal, the described spring structure that bounces back is to be retracted to cabin, birdman cabin body deep inside by described push to talk communication equipment;
Supply of electric power switch, be connected respectively with ARM11 process chip, push to talk communication equipment and solar storage battery, for when receiving abnormality signal, recover the supply of electric power of described solar storage battery to described push to talk communication equipment, when receiving normal state signal, disconnect the supply of electric power of described solar storage battery to described push to talk communication equipment;
Solar storage battery, is connected respectively with described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch, is only described push to talk communication equipment, described Spring driving equipment and described supply of electric power switch and provides supply of electric power;
ARM11 process chip, with described parameter extraction equipment connection, based on the blood oxygen saturation of HbO2 Oxyhemoglobin content and reduced hemoglobin cubage captain, adopts parallel communication interface to be connected to receive brain wave digital signal with analog-digital conversion circuit as described;
Wherein, when there is α ripple and β ripple in described brain wave digital signal in described ARM11 process chip, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal, when described blood oxygen saturation is at default blood oxygen saturation upper concentration, send the too high identification signal of blood oxygen saturation, when described blood oxygen saturation is at default blood oxygen saturation least concentration, send the too low identification signal of blood oxygen saturation;
Wherein, when ARM11 process chip sends the too low identification signal of shallow sleep identification signal, deep sleep identification signal, the too high identification signal of blood oxygen saturation or blood oxygen saturation, ARM11 process chip sends abnormality signal simultaneously, otherwise ARM11 process chip sends normal state signal simultaneously.
3. method as claimed in claim 2, is characterized in that:
Described two-stage power frequency notch filter adopts bandpass filtering to offset patten's design, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component.
4. method as claimed in claim 2, is characterized in that:
Wireless communication interface is VHF communication interface.
5. method as claimed in claim 2, is characterized in that:
Wireless communication interface is high-frequency communication interface.
6. method as claimed in claim 2, is characterized in that:
Wireless communication interface is satellite communication interface.
7. method as claimed in claim 2, is characterized in that:
Described assignment key is the virtual push button on mechanical button or touch screen.
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| CN201610001953.9A CN105496405A (en) | 2016-01-02 | 2016-01-02 | Spring type emergency alarm method used on airplane |
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| CN201610001953.9A CN105496405A (en) | 2016-01-02 | 2016-01-02 | Spring type emergency alarm method used on airplane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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