CN105596009A - Key type detection system - Google Patents
Key type detection system Download PDFInfo
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- CN105596009A CN105596009A CN201610004978.4A CN201610004978A CN105596009A CN 105596009 A CN105596009 A CN 105596009A CN 201610004978 A CN201610004978 A CN 201610004978A CN 105596009 A CN105596009 A CN 105596009A
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- voltage
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- blood oxygen
- oxygen saturation
- brain wave
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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
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
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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
- A61B5/14552—Details of sensors specially adapted therefor
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
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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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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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
- A61B5/74—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
Abstract
The invention relates to a key type detection system. The detection system comprises a brain wave monitoring subsystem, a blood oxygen monitoring subsystem and an embedded processing device, wherein the brain wave monitoring subsystem is used for monitoring the brain wave state of a captain in a cab of a high-speed rail; the blood oxygen monitoring subsystem is used for monitoring the blood oxygen saturation of the captain in the cab of the high-speed rail; the embedded processing device is connected with the brain wave monitoring subsystem and the blood oxygen monitoring subsystem respectively, and determines whether to enter an alarm mode based on monitored results of the brain wave monitoring subsystem and the blood oxygen monitoring subsystem. Based on detected results of brain wave parameters and the blood oxygen saturation of the captain driving the high-speed rail, an opportunity for escape can be provided for passengers in the high-speed rail through the key type detection system.
Description
Technical field
The present invention relates to medical detection field, relate in particular to a kind of button detection system.
Background technology
Although high ferro is travelled on the ground, but its speed is that on ground, the various vehicles are the highest,Once meet accident, its consequence is beyond imagination equally. Therefore the vehicle commander who drives high ferro need to do some training very often and protectHold the absorbed power of height. But vehicle commander also there will be the situation of abnormal state to occur, have subjective because ofElement, also has objective factor, and some omens all can appear in this abnormality in physiological parameter. AndIn prior art, do not have the detection scheme of these omens, say nothing of and detecting after omen in time for taking advantage ofVisitor provides the urgency traffic mechanism that contacts with the external world.
For this reason, the present invention proposes a kind of button detection system, adopt high-precision blood Monitoring Oxygen Ventilation to establishStandby and blood oxygen saturation and the brain wave parameter of brain wave watch-dog to high ferro vehicle commander examined in timeSurvey and report to the police, and recognizing high ferro vehicle commander physiological status when abnormal, automatically leading to for passenger starts promptlyPhone system, helps high ferro operation department to understand in time high ferro operation situation.
Summary of the invention
The technical problem existing in order to solve prior art, the invention provides a kind of button and detects systemUnite, utilize targetedly, can be used for blood Monitoring Oxygen Ventilation equipment and the brain of the cramped construction of high ferro driving cabinElectric wave watch-dog is realized respectively the blood oxygen saturation of the vehicle commander to steering position and brain wave informationExtract, and when abnormal trigger alarm mechanism and passenger's urgency traffic mechanism, avoid high ferro to occur with outwardCommunication not smooth situation in boundary's occurs.
According to an aspect of the present invention, provide a kind of button detection system, described detection system bagDraw together brain wave Monitor And Control Subsystem, blood Monitoring Oxygen Ventilation subsystem and embedded processing equipment, described brain wave prisonControl subsystem is for the brain wave monitoring state to the vehicle commander in high ferro driving cabin, and described blood oxygen is supervisedControl subsystem is for the blood oxygen saturation of the vehicle commander in high ferro driving cabin is monitored, described embeddedTreatment facility is connected respectively with described brain wave Monitor And Control Subsystem and described blood Monitoring Oxygen Ventilation subsystem, according toThe monitored results of described brain wave Monitor And Control Subsystem and described blood Monitoring Oxygen Ventilation subsystem determines whether to enterAlarm mode.
More specifically, in described button detection system, comprising: warning screen, with embedded processingEquipment connection, in the time receiving abnormality signal, display button call character, is receivingWhen normal state signal, do not show operation; Urgent button, is arranged on the body of high ferro passenger compartment cabin,Be positioned at described warning screen side; Press key driving apparatus, be connected with described urgent button, for receivingDuring to pressing operation on described urgent button, send power supply suppling signal; Wireless Telecom Equipment, establishesPut on the body of high ferro passenger compartment cabin, be positioned at described warning screen side, for external staff's call is believedBreath sends to the server at the place of high ferro administrative center of far-end by wireless communication link; Switching over is establishedStandby, be connected by key driving apparatus with described, in the time receiving described power supply suppling signal, described in openingInterface channel between independently-powered equipment and described Wireless Telecom Equipment is to keep described independently-poweredThe supply of electric power of equipment to described Wireless Telecom Equipment; Independently-powered equipment, with described warning screen, instituteState by key driving apparatus, described switching over equipment and be connected respectively with described Wireless Telecom Equipment, be onlyDescribed warning screen, described key driving apparatus, described switching over equipment and the described Wireless Telecom Equipment pressedSupply of electric power is provided; Detecting electrode, is arranged on vehicle commander's head, lives for detection of the neuron of brainMove and arrive by ionic conduction the voltage variety that cerebral cortex forms; Difference preamplifier, withDescribed detecting electrode connects, for described voltage variety is amplified; Low pass filter, with instituteState difference preamplifier and connect, for the voltage variety after amplifying is carried out to 100Hz LPF,To export the first filtering signal; Two-stage power frequency notch filter, is connected with described low pass filter, for rightDescribed the first filtering signal carries out the processing of two-stage notch filter, to export trap signal; High-pass filter,Be connected with described two-stage power frequency notch filter, for described trap signal is carried out to 0.1Hz high-pass filtering,To export the second filtering signal; Level adjustment circuit, is connected with described high-pass filter, to describedTwo filtering signals carry out level adjustment processing, think that follow-up analog-to-digital conversion prepares; The first analog-to-digital conversionCircuit, is connected with described level adjustment circuit, will be through level adjustment the second filtering signal after treatmentCarry out the analog-to-digital conversion of 8, to obtain vehicle commander's brain wave data signal; Light emitting diode, arrangesIn vehicle commander's finger fingertip capillary position, be connected with light source driving circuit, for driving based on light sourceThe LED control signal that circuit sends, alternate emission infrared light and ruddiness; Light source driving circuit, built-inTimer, for sending LED control signal to described light emitting diode; Optical-electrical converter, is arranged onOn vehicle commander's finger fingertip, be positioned at the relative position of described light emitting diode, for receiving transmission vehicle commander handRefer to infrared light and ruddiness after finger tip capillary, and transmitted infrared light and transmit red light are changed respectivelyFor analog current signal, to obtain simulation infrared light electric current and simulation ruddiness electric current; Current/voltage conversionCircuit, is connected with described optical-electrical converter, for simulation infrared light electric current and simulation ruddiness electric current are dividedDo not carry out current/voltage conversion, to obtain respectively simulation infrared light voltage and simulation ruddiness voltage; SignalAmplifier, is connected with described current-to-voltage converting circuit, for red to simulation infrared light voltage and simulationPhotovoltage amplifies respectively, and to obtain, simulation infrared light amplifies voltage and simulation ruddiness amplifies voltage;Signal deteching circuit, is connected with described signal amplifier, comprises that direct current signal detects electronic circuit and exchangesSignal detection electronic circuit, for detection of flip-flop and alternating component in simulation infrared light voltage, withAs the output of the first DC voltage and the first alternating voltage, also straight for detection of in simulation ruddiness voltageStream composition and alternating component, to export as the second DC voltage and the second alternating voltage; The second modulusConverter, is connected with described signal deteching circuit, for to the first DC voltage, the first alternating voltage,The second DC voltage and the second alternating voltage carry out respectively analog-to-digital conversion, to obtain the first Digital DCVoltage, the first Digital AC voltage, the second Digital DC voltage and the second Digital AC voltage;Blood oxygen saturation computing circuit, is connected with described the second analog-digital converter, by the second Digital AC electricityPress with the ratio of the second Digital DC voltage divided by the first Digital AC voltage and the first digitlizationThe ratio of DC voltage absorbs the light ratio value factor to obtain, and calculates blood oxygen based on absorbing the light ratio value factorSaturation degree, wherein, blood oxygen saturation is linear with the absorption light ratio value factor; Embedded processing is establishedStandby, be connected to obtain blood oxygen saturation with described blood oxygen saturation computing circuit, with described the first modulusChange-over circuit connects to receive brain wave data signal; Described embedded processing equipment is when described brain waveWhile there is α ripple and β ripple in data signal, export shallow sleep identification signal, when described brain wave numeralWhile there is θ ripple and δ ripple in signal, output deep sleep identification signal, when described blood oxygen saturation is in advanceIf when blood oxygen saturation upper limit concentration, send the too high identification signal of blood oxygen saturation, when described blood oxygen is satisfiedWhen the default blood oxygen saturation least concentration, send the too low identification signal of blood oxygen saturation with degree; Wherein,When embedded processing equipment sends shallow sleep identification signal, deep sleep identification signal, blood oxygen saturation mistakeWhen high identification signal or the too low identification signal of blood oxygen saturation, embedded processing equipment sends extremely simultaneouslyStatus signal, otherwise embedded processing equipment sends normal state signal simultaneously.
More specifically, in described button detection system: described optical-electrical converter is photoelectricity two utmost pointsPipe.
More specifically, in described button detection system: the infrared light of described light emitting diode transmittingWavelength be 940nm, the red light wavelength of described light emitting diode transmitting is 660nm.
More specifically, in described button detection system: at described signal amplifier and described signalSignalization filter circuit also between testing circuit, for filtering simulation infrared light respectively amplify voltage andSimulation ruddiness amplifies the noise contribution in voltage.
More specifically, in described button detection system: described two-stage power frequency notch filter adopts band logicalFiltering counteracting mode designs, for offsetting the power frequency component of described the first filtering signal.
More specifically, in described button detection system: described power frequency component is that 50Hz frequency is dividedAmount.
Brief description of the drawings
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 button detection system of the present invention.
Reference numeral: 1 brain wave Monitor And Control Subsystem; 2 blood Monitoring Oxygen Ventilation subsystems; 3 embedded processingEquipment
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of button detection system of the present invention is said in detailBright.
At present, the monitoring of high ferro is mainly concentrated on to high ferro object itself, and for the car of driving high ferroLong, corresponding monitoring means are limited, are more the video monitorings to high ferro passenger compartment, even if having oneFor the monitoring means of driver's cabin, also is mostly to limited things such as driver's cabin internal temperature, air pressure a bitThe detection of reason amount, lacks the detection of the physiological status to vehicle commander, says nothing of employing different at vehicle commander's stateChang Shi, has notified the personnel's of passenger compartment communication mechanism in time.
And in the prior art, the passenger compartment at vehicle commander place driving cabin and passenger place is conventionally by drivingSail cabin locking position, vehicle commander's driving condition passenger lacks passage at all and goes to learn, occurs at driving cabinWhen unusual condition, the personnel of passenger compartment know nothing.
For this reason, the present invention has built a kind of button detection system, can understand in time steering positionHigh ferro vehicle commander's blood oxygen saturation and each brain wave parameter, abnormal once occur, can enter immediatelyRow early warning, simultaneously starts urgency communication mechanism in passenger compartment to help high Railway transportation fast with key modeBattalion's management platform is understood Crisis Information in time, takes emergency measures rapidly, avoids the further expansion of the state of affairsGreatly.
Fig. 1 is the block diagram of the first embodiment of button detection system of the present invention, described inspectionExamining system comprises brain wave Monitor And Control Subsystem, blood Monitoring Oxygen Ventilation subsystem and embedded processing equipment, described inBrain wave Monitor And Control Subsystem is for the brain wave monitoring state to the vehicle commander in high ferro driving cabin, instituteState blood Monitoring Oxygen Ventilation subsystem and monitor for the blood oxygen saturation of the vehicle commander in high ferro driving cabin, instituteState embedded processing equipment and described brain wave Monitor And Control Subsystem and described blood Monitoring Oxygen Ventilation subsystem respectivelyConnect, determine according to the monitored results of described brain wave Monitor And Control Subsystem and described blood Monitoring Oxygen Ventilation subsystemWhether enter alarm mode.
Then, continue the second embodiment of button detection system of the present invention to carry out furtherBright.
Described detection system comprises: warning screen, and with embedded processing equipment connection, for receivingWhen abnormality signal, display button call character, in the time receiving normal state signal, does not carry outShow operation; Urgent button, is arranged on the body of high ferro passenger compartment cabin, is positioned at described warning screen side;Press key driving apparatus, be connected with described urgent button, for receive on described urgent button byWhen press operation, send power supply suppling signal.
Described detection system comprises: Wireless Telecom Equipment, be arranged on the body of high ferro passenger compartment cabin, and be positioned atDescribed warning screen side, for sending to external staff's call-information far by wireless communication linkThe server at the place of high ferro administrative center of end; Switching over equipment, is connected by key driving apparatus with described,In the time receiving described power supply suppling signal, open described independently-powered equipment and described radio communication and establishInterface channel between standby is to keep the electric power of described independently-powered equipment to described Wireless Telecom EquipmentSupply; Independently-powered equipment, with described warning screen, described key driving apparatus, the described switching over pressedEquipment is connected respectively with described Wireless Telecom Equipment, be only described warning screen, described by key driving apparatus,Described switching over equipment and described Wireless Telecom Equipment provide supply of electric power.
Described detection system comprises: detecting electrode, be arranged on vehicle commander's head, for detection of brainNeuron activity arrives by ionic conduction the voltage variety that cerebral cortex forms; Preposition difference is putLarge device, is connected with described detecting electrode, for described voltage variety is amplified; LPFDevice, is connected with described difference preamplifier, for the voltage variety after amplifying is carried out to 100HzLPF, to export the first filtering signal; Two-stage power frequency notch filter, connects with described low pass filterConnect, for described the first filtering signal is carried out to the processing of two-stage notch filter, to export trap signal;High-pass filter, is connected with described two-stage power frequency notch filter, for described trap signal is carried out to 0.1HzHigh-pass filtering, to export the second filtering signal.
Described detection system comprises: level adjustment circuit, is connected with described high-pass filter, to describedThe second filtering signal carries out level adjustment processing, thinks that follow-up analog-to-digital conversion prepares; The first modulus turnsChange circuit, be connected with described level adjustment circuit, will be through level adjustment the second filtering letter after treatmentNumber carry out the analog-to-digital conversion of 8, to obtain vehicle commander's brain wave data signal; Light emitting diode, establishesPut in vehicle commander's finger fingertip capillary position, be connected with light source driving circuit, for driving based on light sourceThe LED control signal that moving circuit sends, alternate emission infrared light and ruddiness.
Described detection system comprises: light source driving circuit, built-in timer, for to described luminous twoUtmost point pipe sends LED control signal; Optical-electrical converter, is arranged on vehicle commander's finger fingertip, described in being positioned atThe relative position of light emitting diode, for receiving the infrared light after transmission vehicle commander finger fingertip capillaryAnd ruddiness, and transmitted infrared light and transmit red light are converted to respectively to analog current signal, to obtain mouldIntend infrared light electric current and simulation ruddiness electric current; Current-to-voltage converting circuit, connects with described optical-electrical converterConnect, for simulation infrared light electric current and simulation ruddiness electric current are carried out respectively to current/voltage conversion, to divideHuo get not simulate infrared light voltage and simulation ruddiness voltage.
Described detection system comprises: signal amplifier, be connected with described current-to-voltage converting circuit, and useIn simulation infrared light voltage and simulation ruddiness voltage are amplified respectively, put to obtain simulation infrared lightLarge voltage and simulation ruddiness amplify voltage; Signal deteching circuit, is connected with described signal amplifier, bagDraw together direct current signal and detect electronic circuit and alternating current signal detection electronic circuit, for detection of simulation infrared light voltageIn flip-flop and alternating component, using as the output of the first DC voltage and the first alternating voltage, alsoFor detection of flip-flop and alternating component in simulation ruddiness voltage, using as the second DC voltage andThe second alternating voltage output.
Described detection system comprises: the second analog-digital converter, be connected with described signal deteching circuit, and useIn the first DC voltage, the first alternating voltage, the second DC voltage and the second alternating voltage are entered respectivelyRow analog-to-digital conversion, to obtain the first Digital DC voltage, the first Digital AC voltage, the second numberWord DC voltage and the second Digital AC voltage.
Described detection system comprises: blood oxygen saturation computing circuit, connects with described the second analog-digital converterConnect, by the ratio of the second Digital AC voltage and the second Digital DC voltage divided by the first digitlizationThe ratio of alternating voltage and the first Digital DC voltage absorbs the light ratio value factor to obtain, and based on suctionReceive the light ratio value factor and calculate blood oxygen saturation, wherein, blood oxygen saturation becomes line with the absorption light ratio value factorSexual intercourse.
Described detection system comprises: embedded processing equipment, connects with described blood oxygen saturation computing circuitConnect to obtain blood oxygen saturation, be connected to receive brain wave numeral letter with described the first analog to digital conversion circuitNumber; In described embedded processing equipment in the time there is α ripple and β ripple in described brain wave data signal, defeatedGo out shallow sleep identification signal, in the time there is θ ripple and δ ripple in described brain wave data signal, output is darkSleep identification signal, when described blood oxygen saturation is during in default blood oxygen saturation upper limit concentration, sends bloodThe too high identification signal of oxygen saturation, when described blood oxygen saturation is at default blood oxygen saturation least concentrationTime, send the too low identification signal of blood oxygen saturation.
Wherein, when embedded processing equipment sends shallow sleep identification signal, deep sleep identification signal, bloodWhen the too high identification signal of oxygen saturation or the too low identification signal of blood oxygen saturation, embedded processing equipment is sameTime send abnormality signal, otherwise embedded processing equipment sends normal state signal simultaneously.
Alternatively, in described detection system: described optical-electrical converter is a photodiode; DescribedThe infrared light wavelength of light emitting diode transmitting is 940nm, the ruddiness of described light emitting diode transmittingWavelength is 660nm; Also signalization filter between described signal amplifier and described signal deteching circuitWave circuit, amplifies voltage and the noise of simulating ruddiness amplification voltage for difference filtering simulation infrared lightComposition; Described two-stage power frequency notch filter can adopt bandpass filtering counteracting mode to design, described in offsettingPower frequency component in the first filtering signal; And described power frequency component is chosen as 50Hz frequency component.
In addition, analog-digital converter is A/D converter, or is called for short ADC, typically refers to one by mouldAnalog signal changes the electronic component of data signal into. Common analog-digital converter is by an input voltageSignal is converted to the data signal of an output. Because data signal itself does not have practical significance, onlyOnly represent a relative size. Therefore any one analog-digital converter all needs one with reference to analog quantity conductThe standard of conversion, more common normative reference is maximum convertible signal magnitude. And the number of outputWord amount represents the size of input signal with respect to reference signal.
The resolution ratio of analog-digital converter refers to, for the analog signal in allowed band, he can be defeatedGo out the number of discrete digital signal value. These signal values are stored with binary number conventionally, therefore differentiateRate is through commonly using bit as unit, and the number of these centrifugal pumps is power exponents of 2. For example, oneThe analog-digital converter with 8 bit resolutions analog signal can be encoded into 256 different fromLoose value (because 2^8=256), from 0 to 255 (being signless integer) or from-128 to 127 (Signed integer), any as for using, depend on concrete application.
Adopt button detection system of the present invention, for lacking high ferro driver physiology in prior artThe technical problem of status mechanism and shortage passenger urgency traffic equipment, adopts high-precision blood Monitoring Oxygen VentilationEquipment and brain wave watch-dog blood oxygen saturation and the multiple brain wave parameter to high ferro driver enteredRow detects in time and reports to the police, and also introduces physiological parameter early warning mechanism and urgency traffic mechanism to ensure high ferroDriving safety with communicate by letter unimpeded.
Be understandable that, although the present invention disclose as above with preferred embodiment, but above-mentioned enforcementExample is not in order to limit the present invention. For any those of ordinary skill in the art, do not departing fromIn technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement to the technology of the present inventionScheme is made many possible variations and modification, or is revised as the equivalent embodiment of equivalent variations. Therefore,Every content that does not depart from technical solution of the present invention, foundation technical spirit of the present invention is to above embodimentAny simple modification, equivalent variations and the modification done, all still belong to technical solution of the present invention protectionIn scope.
Claims (2)
1. a button detection system, described detection system comprises brain wave Monitor And Control Subsystem, bloodMonitoring Oxygen Ventilation subsystem and embedded processing equipment, described brain wave Monitor And Control Subsystem is for driving high ferroThe brain wave monitoring state of vehicle commander in cabin, described blood Monitoring Oxygen Ventilation subsystem is for driving high ferroThe blood oxygen saturation of vehicle commander in cabin is monitored, described embedded processing equipment and described brain wave prisonControl subsystem is connected respectively with described blood Monitoring Oxygen Ventilation subsystem, according to described brain wave Monitor And Control Subsystem andThe monitored results of described blood Monitoring Oxygen Ventilation subsystem determines whether to enter alarm mode.
2. button detection system as claimed in claim 1, is characterized in that, described detection isTurnkey is drawn together:
Warning screen, with embedded processing equipment connection, in the time receiving abnormality signal, aobviousShow push-to-talk character, in the time receiving normal state signal, do not show operation;
Urgent button, is arranged on the body of high ferro passenger compartment cabin, is positioned at described warning screen side;
Press key driving apparatus, be connected with described urgent button, for receiving described urgent buttonPressing operation time, send power supply suppling signal;
Wireless Telecom Equipment, is arranged on the body of high ferro passenger compartment cabin, is positioned at described warning screen side, usesIn the high ferro administrative center that external staff's call-information is sent to far-end by wireless communication linkThe server at place;
Switching over equipment, is connected by key driving apparatus with described, is receiving described power supply supply letterNumber time, open interface channel between described independently-powered equipment and described Wireless Telecom Equipment to keepThe supply of electric power of described independently-powered equipment to described Wireless Telecom Equipment;
Independently-powered equipment, with described warning screen, describedly establish by key driving apparatus, described switching overStandby be connected respectively with described Wireless Telecom Equipment, be only described warning screen, described by key driving apparatus,Described switching over equipment and described Wireless Telecom Equipment provide supply of electric power;
Detecting electrode, is arranged on vehicle commander's head, passes through ion for detection of the neuron activity of brainConduct the voltage variety that arrives cerebral cortex and form;
Difference preamplifier, is connected with described detecting electrode, for described voltage variety is carried outAmplify;
Low pass filter, is connected with described difference preamplifier, for by amplify after voltage changeAmount is carried out 100Hz LPF, to export the first filtering signal;
Two-stage power frequency notch filter, is connected with described low pass filter, for to described the first filtering signalCarry out the processing of two-stage notch filter, to export trap signal;
High-pass filter, is connected with described two-stage power frequency notch filter, for described trap signal is carried out0.1Hz high-pass filtering, to export the second filtering signal;
Level adjustment circuit, is connected with described high-pass filter, and described the second filtering signal is carried out to electricityHeibei provincial opera joint is processed, and thinks that follow-up analog-to-digital conversion prepares;
The first analog to digital conversion circuit, is connected with described level adjustment circuit, will be through level adjustment processingAfter the second filtering signal carry out the analog-to-digital conversion of 8, to obtain vehicle commander's brain wave data signal;
Light emitting diode, is arranged on vehicle commander's finger fingertip capillary position, connects with light source driving circuitConnect, for the LED control signal sending based on light source driving circuit, alternate emission infrared light and ruddiness;
Light source driving circuit, built-in timer, for sending light emitting control letter to described light emitting diodeNumber;
Optical-electrical converter, is arranged on vehicle commander's finger fingertip, is positioned at the phase contraposition of described light emitting diodePut, for receiving infrared light and the ruddiness after transmission vehicle commander finger fingertip capillary, and transmission is redOuter light and transmit red light are converted to respectively analog current signal, to obtain simulation infrared light electric current and simulationRuddiness electric current;
Current-to-voltage converting circuit, is connected with described optical-electrical converter, for to simulation infrared light electric currentCarry out respectively current/voltage conversion with simulation ruddiness electric current, to obtain respectively simulation infrared light voltage and mouldIntend ruddiness voltage;
Signal amplifier, is connected with described current-to-voltage converting circuit, for to simulation infrared light voltageAmplify respectively with simulation ruddiness voltage, to obtain, simulation infrared light amplifies voltage and simulation ruddiness is putLarge voltage;
Signal deteching circuit, is connected with described signal amplifier, comprise direct current signal detect electronic circuit andAlternating current signal detection electronic circuit, for detection of the flip-flop in simulation infrared light voltage with exchange intoPoint, to export as the first DC voltage and the first alternating voltage, also for detection of simulation ruddiness voltageIn flip-flop and alternating component, using as the output of the second DC voltage and the second alternating voltage;
The second analog-digital converter, is connected with described signal deteching circuit, for to the first DC voltage,The first alternating voltage, the second DC voltage and the second alternating voltage carry out respectively analog-to-digital conversion, to obtainThe first Digital DC voltage, the first Digital AC voltage, the second Digital DC voltage and secondDigital AC voltage;
Blood oxygen saturation computing circuit, is connected with described the second analog-digital converter, and the second digitlization is handed overThe ratio of stream voltage and the second Digital DC voltage is divided by the first Digital AC voltage and the first numberThe ratio of word DC voltage absorbs the light ratio value factor to obtain, and calculates based on absorbing the light ratio value factorBlood oxygen saturation, wherein, blood oxygen saturation is linear with the absorption light ratio value factor;
Embedded processing equipment, is connected to obtain blood oxygen saturation with described blood oxygen saturation computing circuitDegree, is connected to receive brain wave data signal with described the first analog to digital conversion circuit; Described embedded placeReason equipment, in the time there is α ripple and β ripple in described brain wave data signal, is exported shallow sleep identification signal,In the time there is θ ripple and δ ripple in described brain wave data signal, output deep sleep identification signal, works as instituteState blood oxygen saturation in the time of default blood oxygen saturation upper limit concentration, send the too high identification letter of blood oxygen saturationNumber, when described blood oxygen saturation is during at default blood oxygen saturation least concentration, send blood oxygen saturation mistakeLow identification signal;
Wherein, when embedded processing equipment sends shallow sleep identification signal, deep sleep identification signal, bloodWhen the too high identification signal of oxygen saturation or the too low identification signal of blood oxygen saturation, embedded processing equipment is sameTime send abnormality signal, otherwise embedded processing equipment sends normal state signal simultaneously;
Described optical-electrical converter is a photodiode;
The infrared light wavelength of described light emitting diode transmitting is 940nm, described light emitting diode transmittingRed light wavelength be 660nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004978.4A CN105596009A (en) | 2016-01-02 | 2016-01-02 | Key type detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004978.4A CN105596009A (en) | 2016-01-02 | 2016-01-02 | Key type detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105596009A true CN105596009A (en) | 2016-05-25 |
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| CN101559252A (en) * | 2009-05-22 | 2009-10-21 | 顾磊 | Intelligent insomnia therapeutic instrument |
| CN202288250U (en) * | 2011-08-15 | 2012-07-04 | 厚美德生物科技股份有限公司 | Wireless transmission detecting device |
| CN104287721A (en) * | 2014-10-31 | 2015-01-21 | 龙泉千成电子科技有限公司 | Vehicle-mounted multi-parameter physiological monitoring device |
| CN105184111A (en) * | 2015-11-06 | 2015-12-23 | 李良 | Fault identification system for direct current transmission line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559252A (en) * | 2009-05-22 | 2009-10-21 | 顾磊 | Intelligent insomnia therapeutic instrument |
| CN202288250U (en) * | 2011-08-15 | 2012-07-04 | 厚美德生物科技股份有限公司 | Wireless transmission detecting device |
| CN104287721A (en) * | 2014-10-31 | 2015-01-21 | 龙泉千成电子科技有限公司 | Vehicle-mounted multi-parameter physiological monitoring device |
| CN105184111A (en) * | 2015-11-06 | 2015-12-23 | 李良 | Fault identification system for direct current transmission line |
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Application publication date: 20160525 |