CN105433925A - Physiological parameter detecting method based on race detection - Google Patents
Physiological parameter detecting method based on race detection Download PDFInfo
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- CN105433925A CN105433925A CN201610002141.6A CN201610002141A CN105433925A CN 105433925 A CN105433925 A CN 105433925A CN 201610002141 A CN201610002141 A CN 201610002141A CN 105433925 A CN105433925 A CN 105433925A
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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
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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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
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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
- A61B5/117—Identification of persons
- A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
- A61B5/1176—Recognition of faces
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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
- A61B5/48—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
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
Abstract
The invention relates to a physiological parameter detecting method based on race detection. The method comprises the steps that 1, a physiological parameter detector based on race detection is provided and comprises a pulse monitoring subsystem, a brain wave monitoring subsystem, a race detecting subsystem and a single-chip microcomputer AT89C51, the pulse monitoring subsystem monitors the pulse state of detected personnel based on the detection result of the race detecting subsystem, the brain wave monitoring subsystem monitors the brain wave state of the detected personnel, and the single-chip microcomputer AT89C51 determines the physiological state of the detected personnel based on the monitoring result of the pulse monitoring subsystem and the brain wave monitoring subsystem; 2, the detector is used.
Description
Technical field
The present invention relates to medical monitoring arts, particularly relate to a kind of physio-parameter detection method detected based on ethnic group.
Background technology
Multiple physical parameter detector device is there is in prior art, every physiological parameter for the health to tested personnel detects, once occur that physiological parameter exceedes the situation of pre-set limit, start alarm device immediately and notify medical personnel or tested personnel, with fast searching emergency measure, avoid further developing of the state of affairs.
But various physical parameter detector device of the prior art all exists following defect: (1) testing mechanism is single, each instrument is general only for detecting a physiological parameter; (2) testing mechanism falls behind, and the structural redundancy of detecting instrument is not high, and precision is accurate not; (3) because tested personnel exists four kinds of ethnic groups, due to the accumulation of history and the asynchronous of evolution, the threshold value of warning of the physiological parameter of each ethnic group is not identical, and prior art lacks the intellectualized detection means detected based on ethnic group, causes testing result deviation larger.
Therefore, the present invention proposes a kind of physical parameter detector detected based on ethnic group, detect under the pulse signal of tested personnel and eeg signal can being placed on a testing mechanism, improve the structure of existing physio-parameter detection equipment simultaneously, realize the detecting pattern that different ethnic group difference detects threshold value of warning, thus improve the precision of testing result.
Summary of the invention
In order to solve the technical problem that prior art exists, the invention provides a kind of physical parameter detector detected based on ethnic group, pulse detection equipment and brain wave checkout equipment are concentrated in a detecting instrument and works simultaneously, optimize the structure of existing checkout equipment, more crucially, for four kinds of existing in the world ethnic groups, the technology of high precision image identification is adopted to carry out ethnic group identification, and each physiological parameter threshold value of warning is set adaptively according to the result of ethnic group identification, thus ensure reasonability and the science of testing result.
According to an aspect of the present invention, provide a kind of physical parameter detector detected based on ethnic group, described detector comprises pulse monitoring subsystem, brain wave Monitor And Control Subsystem, ethnic group detection subsystem and AT89C51 single-chip microcomputer, described pulse monitoring subsystem is monitored tested personnel's pulse state based on the testing result of described ethnic group detection subsystem, described brain wave Monitor And Control Subsystem is to tested personnel's brain wave monitoring state, described AT89C51 single-chip microcomputer determines the physiological status of tested personnel based on the monitored results of described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem.
More specifically, in the described physical parameter detector detected based on ethnic group, comprising: image capture device, for taking tested personnel's face, to obtain tested personnel's face-image, contrast strengthen equipment, is connected with described image capture device, for receiving described tested personnel's face-image and carrying out contrast enhancement processing to it, to obtain enhancing image, medium filtering equipment, with described contrast strengthen equipment connection, for performing the medium filtering of pixel window 5 × 5 to described enhancing image, to strengthen the spot noise in image described in filtering, obtains medium filtering image, low-pass filtering equipment, with described medium filtering equipment connection, for removing the random noise in described medium filtering image, obtains low-pass filtering image, homomorphic filtering equipment, with described low-pass filtering equipment connection, for performing the process of compression brightness range to described low-pass filtering image, to obtain homomorphic filtering image, feature extracting device, with described homomorphic filtering equipment connection, comprise Iamge Segmentation subset and eigenvector recognition subset, described Iamge Segmentation subset is used for the face object in described homomorphic filtering image being identified from shooting background and splitting to obtain facial subimage, described eigenvector recognition subset is connected with described Iamge Segmentation subset, 8 geometric properties of tested personnel's face are determined: Euler's hole count, circularity, angle point number, convex-concave degree, smoothness, draw ratio, compactness and main shaft angle based on described facial subimage, and by described 8 geometric properties composition characteristics vector, ethnic group identification equipment, be connected with described feature extracting device, adopt single hidden layer BP neutral net that 8 inputs 4 export, using 8 of tested personnel's face geometric properties as input layer, output layer is people's type of tested personnel, and people's type of described tested personnel is the one in the white race, the yellow race, brown race and black race's Four types, FLASH storage chip, for prestoring ethnic group physiological parameter synopsis, described ethnic group physiological parameter synopsis saves each type in the white race, the yellow race, brown race and black race's Four types corresponding benchmark pulse range, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration, first resistance, one end is connected with 5V power supply, and the other end is connected with the anode of infrared receiving diode, second resistance, one end is connected with 5V power supply, and the other end is connected with one end of the 3rd resistance, 3rd resistance, other end ground connection, and there is the resistance identical with the second resistance, first two-way operational amplifier, for generation of the reference voltage of 2.5V, its anode is connected with the other end of the second resistance, and negative terminal is connected with one end of the first electric capacity, outfan is connected with the negative terminal of infrared-emitting diode, 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, anode is connected with the other end of the 4th resistance, and negative terminal is connected with the anode of infrared receiving diode, and outfan is as pulse voltage, 5th resistance, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal, second electric capacity, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal, infrared-emitting diode, is arranged on tested personnel ear blood capillary position, and 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 tested personnel ear blood capillary position, is positioned at the relative position of described infrared-emitting diode, for receiving the infrared light after transmission tested personnel ear blood capillary, detecting electrode, is arranged on tested personnel'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 tested personnel, AT89C51 single-chip microcomputer, parallel input/output interface is adopted to be connected with analog-digital conversion circuit as described to obtain described brain wave digital signal, serial input-output interface (SIO) is adopted to be connected to obtain described pulse voltage with the outfan of described second two-way operational amplifier, when described pulse voltage is outside default pulse range, send cacosphyxia identification signal, when there is α ripple and β ripple in described brain wave digital signal, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal, wherein, when AT89C51 single-chip microcomputer sends cacosphyxia identification signal, shallow sleep identification signal or deep sleep identification signal, AT89C51 single-chip microcomputer sends abnormality signal simultaneously, otherwise AT89C51 single-chip microcomputer sends normal state signal simultaneously, wherein, between infrared-emitting diode and infrared receiving diode during pulseless, pulse voltage is 2.5V, and when there is the pulse of beating between infrared-emitting diode and infrared receiving diode, blood vessels make ear's light transmission be deteriorated, and pulse voltage is greater than 2.5V, wherein, the first two-way operational amplifier and the second two-way operational amplifier are all the two-way operational amplifier of TI company, wherein, 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, wherein, AT89C51 single-chip microcomputer is also connected respectively with ethnic group identification equipment and FLASH storage chip, people's type based on the tested personnel of ethnic group identification equipment output determines benchmark pulse range in described ethnic group physiological parameter synopsis, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration, and as presetting pulse range, preset sinus rate scope, preset PR interval, preset QT interval scope, preset blood glucose upper concentration, preset blood glucose least concentration, preset blood oxygen saturation upper concentration and default blood oxygen saturation least concentration.
More specifically, in the described physical parameter detector detected based on ethnic group, described detector also comprises: radio communication circuit, is connected with AT89C51 single-chip microcomputer, for sending abnormality signal or normal state signal.
More specifically, in the described physical parameter detector detected based on ethnic group: radio communication circuit is the one in GPRS mobile communication interface, 3G mobile communication interface and 4G mobile communication interface.
More specifically, in the described physical parameter detector detected based on ethnic group: abnormality signal or normal state signal are sent to the server place at the medical aid center of far-end by radio communication circuit.
More specifically, in the described physical parameter detector detected based on ethnic group: AT89C51 single-chip microcomputer and radio communication circuit are integrated on one piece of surface-mounted integrated circuit.
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 physical parameter detector based on ethnic group detection of the present invention.
Reference numeral: 1 pulse monitoring subsystem; 2 brain wave Monitor And Control Subsystems; 3 ethnic group detection subsystem; 4AT89C51 single-chip microcomputer
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the physical parameter detector based on ethnic group detection of the present invention is described in detail.
Ethnic group, also referred to as race, biologically, each race of the mankind belongs to species, i.e. a homo sapiens.In general the body constitution form of each ethnic group is adapt with their living environment.Ethnic group is the human colony with coinheritance constitutive character.Different races is equivalent to the some mutation under species, although they originate from a common ancestor.
There are four large ethnic group, the i.e. yellow races in the world today, also known as the Mongolian race, the white race, also known as Caucasoid, black race, also known as Negroid, and brown race, also known as Australoid.
From the appearance, different ethnic groups is distinguished to some extent in the features such as the colour of skin, wink, color development, hair style, head dummy, height, but these feature differences adapt to local natural environment because the mankind are long-term in certain region, formed again through long-term isolation.From internal structure, different ethnic groups is also different in every physiological parameter distribution, if adopt identical physiological parameter threshold to monitor to different ethnic group, the possibility of result of monitoring is far from each other.
The physio-parameter detection mechanism based on ethnic group identification is lacked in prior art, simultaneously, each physiological parameter instrument of the prior art generally only detects single physiological parameter, comprehensive detection cannot be carried out, and existing physiological parameter instrument structural redundancy is high, accuracy of detection is on the low side, needs to carry out certain optimization to its structure.
For this reason, the present invention has built a kind of physical parameter detector detected based on ethnic group, to be integrated in a detecting instrument through the high-precision pulse monitoring equipment of structure optimization and brain wave watch-dog, adopt ethnic group identification equipment targetedly to identify tested personnel simultaneously, on this basis, the science detection to the physiological parameter of tested personnel and early warning is completed.
Fig. 1 is the block diagram of the first embodiment of the physical parameter detector based on ethnic group detection of the present invention, described detector comprises pulse monitoring subsystem, brain wave Monitor And Control Subsystem, ethnic group detection subsystem and AT89C51 single-chip microcomputer, described pulse monitoring subsystem is monitored tested personnel's pulse state based on the testing result of described ethnic group detection subsystem, described brain wave Monitor And Control Subsystem is to tested personnel's brain wave monitoring state, described AT89C51 single-chip microcomputer determines the physiological status of tested personnel based on the monitored results of described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem.
Then, continue to be further detailed the concrete structure of the second embodiment of the physical parameter detector based on ethnic group detection of the present invention.
Described detector comprises: image capture device, for taking tested personnel's face, to obtain tested personnel's face-image; Contrast strengthen equipment, is connected with described image capture device, for receiving described tested personnel's face-image and carrying out contrast enhancement processing to it, to obtain enhancing image; Medium filtering equipment, with described contrast strengthen equipment connection, for performing the medium filtering of pixel window 5 × 5 to described enhancing image, to strengthen the spot noise in image described in filtering, obtains medium filtering image; Low-pass filtering equipment, with described medium filtering equipment connection, for removing the random noise in described medium filtering image, obtains low-pass filtering image; Homomorphic filtering equipment, with described low-pass filtering equipment connection, for performing the process of compression brightness range to described low-pass filtering image, to obtain homomorphic filtering image.
Described detector comprises: feature extracting device, with described homomorphic filtering equipment connection, comprise Iamge Segmentation subset and eigenvector recognition subset, described Iamge Segmentation subset is used for the face object in described homomorphic filtering image being identified from shooting background and splitting to obtain facial subimage; Described eigenvector recognition subset is connected with described Iamge Segmentation subset, 8 geometric properties of tested personnel's face are determined: Euler's hole count, circularity, angle point number, convex-concave degree, smoothness, draw ratio, compactness and main shaft angle based on described facial subimage, and by described 8 geometric properties composition characteristics vector; Ethnic group identification equipment, be connected with described feature extracting device, adopt single hidden layer BP neutral net that 8 inputs 4 export, using 8 of tested personnel's face geometric properties as input layer, output layer is people's type of tested personnel, and people's type of described tested personnel is the one in the white race, the yellow race, brown race and black race's Four types; FLASH storage chip, for prestoring ethnic group physiological parameter synopsis, described ethnic group physiological parameter synopsis saves each type in the white race, the yellow race, brown race and black race's Four types corresponding benchmark pulse range, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration.
Described detector comprises: the first resistance, and one end is connected with 5V power supply, and the other end is connected with the anode of infrared receiving diode; Second resistance, one end is connected with 5V power supply, and the other end is connected with one end of the 3rd resistance; 3rd resistance, other end ground connection, and there is the resistance identical with the second resistance; First two-way operational amplifier, for generation of the reference voltage of 2.5V, its anode is connected with the other end of the second resistance, and negative terminal is connected with one end of the first electric capacity, outfan is connected with the negative terminal of infrared-emitting diode, and negative terminal is also connected with the negative terminal of infrared-emitting diode.
Described detector comprises: the 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, anode is connected with the other end of the 4th resistance, and negative terminal is connected with the anode of infrared receiving diode, and outfan is as pulse voltage; 5th resistance, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal; Second electric capacity, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal; Infrared-emitting diode, is arranged on tested personnel ear blood capillary position, and 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 tested personnel ear blood capillary position, is positioned at the relative position of described infrared-emitting diode, for receiving the infrared light after transmission tested personnel ear blood capillary; Detecting electrode, is arranged on tested personnel's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed.
Described detector comprises: 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.
Described detector comprises: 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 tested personnel.
Described detector comprises: AT89C51 single-chip microcomputer, parallel input/output interface is adopted to be connected with analog-digital conversion circuit as described to obtain described brain wave digital signal, serial input-output interface (SIO) is adopted to be connected to obtain described pulse voltage with the outfan of described second two-way operational amplifier, when described pulse voltage is outside default pulse range, send cacosphyxia identification signal, when there is α ripple and β ripple in described brain wave digital signal, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal.
Wherein, when AT89C51 single-chip microcomputer sends cacosphyxia identification signal, shallow sleep identification signal or deep sleep identification signal, AT89C51 single-chip microcomputer sends abnormality signal simultaneously, otherwise AT89C51 single-chip microcomputer sends normal state signal simultaneously; Wherein, between infrared-emitting diode and infrared receiving diode during pulseless, pulse voltage is 2.5V, and when there is the pulse of beating between infrared-emitting diode and infrared receiving diode, blood vessels make ear's light transmission be deteriorated, and pulse voltage is greater than 2.5V; Wherein, the first two-way operational amplifier and the second two-way operational amplifier are all the two-way operational amplifier of TI company; Wherein, 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.
Wherein, AT89C51 single-chip microcomputer is also connected respectively with ethnic group identification equipment and FLASH storage chip, people's type based on the tested personnel of ethnic group identification equipment output determines benchmark pulse range in described ethnic group physiological parameter synopsis, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration, and as presetting pulse range, preset sinus rate scope, preset PR interval, preset QT interval scope, preset blood glucose upper concentration, preset blood glucose least concentration, preset blood oxygen saturation upper concentration and default blood oxygen saturation least concentration.
Alternatively, in described detector, also comprise: radio communication circuit, be connected with AT89C51 single-chip microcomputer, for sending abnormality signal or normal state signal; Radio communication circuit is the one in GPRS mobile communication interface, 3G mobile communication interface and 4G mobile communication interface; Abnormality signal or normal state signal are sent to the server place at the medical aid center of far-end by radio communication circuit; And AT89C51 single-chip microcomputer and radio communication circuit can be integrated on one piece of surface-mounted integrated circuit.
In addition, wave filter, as the term suggests, be the device that ripple is filtered." ripple " is a physical concept widely, and at electronic technology field, " ripple " is narrowly confined to refer in particular to the process of the value fluctuations in time describing various physical quantity.This process, by the effect of various kinds of sensors, is converted into the time function of voltage or electric current, is referred to as the time waveform of various physical quantity, or is referred to as signal.Because the independent variable time is continuous value, be referred to as continuous time signal, be referred to as analogue signal habitually again.
Along with generation and the develop rapidly of digital electronic computer technology, for the ease of computer, signal is processed, create complete Theories and methods continuous time signal being transformed into discrete-time signal under sampling theorem instructs.That is, can only express primary signal by the sample value of original analog signal on series of discrete time coordinate point and not lose any information, since what these concepts of ripple, waveform, signal were expressed is the change of various physical quantity in objective world, is exactly the carrier of the various information that modern society depends on for existence naturally.Information needs to propagate, and what lean on is exactly the transmission of waveshape signal.Signal it generation, conversion, transmission each link may distort due to the existence of environment and interference, or even in quite a number of cases, this distortion is also very serious, causes signal and entrained information thereof to be embedded in the middle of noise dearly.In order to these noises of filtering, recover signal originally, need to use various wave filter to carry out Filtering Processing.
Adopt the physical parameter detector detected based on ethnic group of the present invention,, structure single for tested personnel's physio-parameter detection in prior art is optimized not and is lacked the technical problem of the intellectualized detection mechanism based on ethnic group identification, high-precision pulse monitoring equipment after de-redundant remaining and brain wave watch-dog are collected in a detecting instrument, image recognition technology is adopted to detect targetedly ethnic group, and the detection completed on the basis of ethnic group identification the physiological status of tested personnel and early warning, thus improve the accuracy of testing result.
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 (6)
1., based on the physio-parameter detection method that ethnic group detects, the method comprises:
1) a kind of physical parameter detector detected based on ethnic group is provided, described detector comprises pulse monitoring subsystem, brain wave Monitor And Control Subsystem, ethnic group detection subsystem and AT89C51 single-chip microcomputer, described pulse monitoring subsystem is monitored tested personnel's pulse state based on the testing result of described ethnic group detection subsystem, described brain wave Monitor And Control Subsystem is to tested personnel's brain wave monitoring state, and described AT89C51 single-chip microcomputer determines the physiological status of tested personnel based on the monitored results of described pulse monitoring subsystem and described brain wave Monitor And Control Subsystem;
2) described detector is used.
2. the method for claim 1, is characterized in that, described detector comprises:
Image capture device, for taking tested personnel's face, to obtain tested personnel's face-image;
Contrast strengthen equipment, is connected with described image capture device, for receiving described tested personnel's face-image and carrying out contrast enhancement processing to it, to obtain enhancing image;
Medium filtering equipment, with described contrast strengthen equipment connection, for performing the medium filtering of pixel window 5 × 5 to described enhancing image, to strengthen the spot noise in image described in filtering, obtains medium filtering image;
Low-pass filtering equipment, with described medium filtering equipment connection, for removing the random noise in described medium filtering image, obtains low-pass filtering image;
Homomorphic filtering equipment, with described low-pass filtering equipment connection, for performing the process of compression brightness range to described low-pass filtering image, to obtain homomorphic filtering image;
Feature extracting device, with described homomorphic filtering equipment connection, comprise Iamge Segmentation subset and eigenvector recognition subset, described Iamge Segmentation subset is used for the face object in described homomorphic filtering image being identified from shooting background and splitting to obtain facial subimage; Described eigenvector recognition subset is connected with described Iamge Segmentation subset, 8 geometric properties of tested personnel's face are determined: Euler's hole count, circularity, angle point number, convex-concave degree, smoothness, draw ratio, compactness and main shaft angle based on described facial subimage, and by described 8 geometric properties composition characteristics vector;
Ethnic group identification equipment, be connected with described feature extracting device, adopt single hidden layer BP neutral net that 8 inputs 4 export, using 8 of tested personnel's face geometric properties as input layer, output layer is people's type of tested personnel, and people's type of described tested personnel is the one in the white race, the yellow race, brown race and black race's Four types;
FLASH storage chip, for prestoring ethnic group physiological parameter synopsis, described ethnic group physiological parameter synopsis saves each type in the white race, the yellow race, brown race and black race's Four types corresponding benchmark pulse range, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration;
First resistance, one end is connected with 5V power supply, and the other end is connected with the anode of infrared receiving diode;
Second resistance, one end is connected with 5V power supply, and the other end is connected with one end of the 3rd resistance;
3rd resistance, other end ground connection, and there is the resistance identical with the second resistance;
First two-way operational amplifier, for generation of the reference voltage of 2.5V, its anode is connected with the other end of the second resistance, and negative terminal is connected with one end of the first electric capacity, outfan is connected with the negative terminal of infrared-emitting diode, 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, anode is connected with the other end of the 4th resistance, and negative terminal is connected with the anode of infrared receiving diode, and outfan is as pulse voltage;
5th resistance, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal;
Second electric capacity, is connected in parallel between the second two-way operational amplifier negative terminal and the second two-way operational amplifier output terminal;
Infrared-emitting diode, is arranged on tested personnel ear blood capillary position, and 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 tested personnel ear blood capillary position, is positioned at the relative position of described infrared-emitting diode, for receiving the infrared light after transmission tested personnel ear blood capillary;
Detecting electrode, is arranged on tested personnel'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 tested personnel;
AT89C51 single-chip microcomputer, parallel input/output interface is adopted to be connected with analog-digital conversion circuit as described to obtain described brain wave digital signal, serial input-output interface (SIO) is adopted to be connected to obtain described pulse voltage with the outfan of described second two-way operational amplifier, when described pulse voltage is outside default pulse range, send cacosphyxia identification signal, when there is α ripple and β ripple in described brain wave digital signal, export shallow sleep identification signal, when there is θ ripple and δ ripple in described brain wave digital signal, export deep sleep identification signal;
Wherein, when AT89C51 single-chip microcomputer sends cacosphyxia identification signal, shallow sleep identification signal or deep sleep identification signal, AT89C51 single-chip microcomputer sends abnormality signal simultaneously, otherwise AT89C51 single-chip microcomputer sends normal state signal simultaneously;
Wherein, between infrared-emitting diode and infrared receiving diode during pulseless, pulse voltage is 2.5V, and when there is the pulse of beating between infrared-emitting diode and infrared receiving diode, blood vessels make ear's light transmission be deteriorated, and pulse voltage is greater than 2.5V;
Wherein, the first two-way operational amplifier and the second two-way operational amplifier are all the two-way operational amplifier of TI company;
Wherein, 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;
Wherein, AT89C51 single-chip microcomputer is also connected respectively with ethnic group identification equipment and FLASH storage chip, people's type based on the tested personnel of ethnic group identification equipment output determines benchmark pulse range in described ethnic group physiological parameter synopsis, benchmark sinus rate scope, benchmark PR interval, benchmark QT interval scope, benchmark blood glucose upper concentration, benchmark blood glucose least concentration, benchmark blood oxygen saturation upper concentration and benchmark blood oxygen saturation least concentration, and as presetting pulse range, preset sinus rate scope, preset PR interval, preset QT interval scope, preset blood glucose upper concentration, preset blood glucose least concentration, preset blood oxygen saturation upper concentration and default blood oxygen saturation least concentration.
3. method as claimed in claim 2, it is characterized in that, described detector also comprises:
Radio communication circuit, is connected with AT89C51 single-chip microcomputer, for sending abnormality signal or normal state signal.
4. method as claimed in claim 3, is characterized in that:
Radio communication circuit is the one in GPRS mobile communication interface, 3G mobile communication interface and 4G mobile communication interface.
5. method as claimed in claim 3, is characterized in that:
Abnormality signal or normal state signal are sent to the server place at the medical aid center of far-end by radio communication circuit.
6. method as claimed in claim 3, is characterized in that:
AT89C51 single-chip microcomputer and radio communication circuit are integrated on one piece of surface-mounted integrated circuit.
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