KR101883300B1 - Sasang Constitution Discriminate Method and Sasang Constitution Discriminator - Google Patents

Abstract

The present invention relates to a sasang constitution discrimination method and a sasang constitution discrimination apparatus, which detects a pulse wave signal from a cord, a vein and a chest, discriminates a pulse wave signal to indicate a change in the sensed pulse wave signal, The discrimination score is calculated based on the extracted pulse wave features and the sasang constitution discrimination function, and the distance between the calculated discrimination score and the center value of the discrimination function of predetermined sasang constitution is calculated. Based on the calculated distance, Is determined.

Description

{Sasang Constitution Discrimination Method and Sasang Constitution Discriminator}

The present invention relates to a sasang constitution discriminating method and a sasang constitution discriminating apparatus, and more particularly, to a sasang constitution discriminating method and a sasang constitution discriminating apparatus capable of discriminating the sasang constitution of a testee using a discrimination function.

Sasang Constitution is a pure Korean medical theory that classifies human constitution into 4 kinds: Sunin, Taeumin, Soyangin, and Soeumin. The methods of physiology, pathology, diagnosis, and treatment according to sasang constitution are different from each other, and sasang constitution is one of the oriental medicine theories which suggested a new method from mental to physical harmony.

It is necessary to make stereotyped and accurate sasang constitution discrimination because the prescription is decided for each sasang constitution and the side effect may occur with the prescription which is inconsistent with sasang constitution.

In the past, the sasang constitution has been discriminated by the oriental doctor using the body shape of the patient, the face, the voice, the vagina, or the like using the O-ring test. In this case, it was difficult for the oriental medical practitioner to judge the subject personally and to give the discrimination method. Further, in the case of the unskilled person, there is a problem that the accuracy of the discrimination is not high. Also, there is a problem that the accuracy of the discrimination method by the O-ring test is low.

Prior Art 1: KR10-2008-0043545 (Publication date: May 19, 2008) Prior Art 2: KR10-2006-0014630 (Publication date: 2006.02.16)

In order to solve the above problem, the present invention provides a method for discriminating a sasang constitution of a testee by using a distance between a center value of a sasang constitution and a discrimination score of a testee through a discriminant function and a sasang constitution And to provide a discriminating device.

In addition, the object of the present invention is to provide a sasang constitution discrimination method and a sasang constitution discrimination apparatus which continuously increase the accuracy by continuously updating the discriminant function and the center value based on the pulse wave characteristics of the testee.

In order to achieve the above object, the present invention provides a method for detecting a pulse wave signal from a cord, a vein, and a pulse, extracting a pulse wave characteristic from the differentiated pulse wave signal to express a change amount of the sensed pulse wave signal, And calculating a distance between the calculated discrimination score and a center value of a discriminant function of a predetermined sasang constitution, and calculating a sasang constitution based on the calculated distance And provides a method for distinguishing sasang constitution.

The sasang constitution discrimination function can be made as follows to disperse the discrimination score by constitution with the extracted pulse wave characteristics of the examinee as a variable.

Y ₁ = a ₁ x ₁ + a ₂ x ₂ + ... a _p x _p

Y ₂ = b ₁ x ₁ + b ₂ x ₂ + ... b _p x _p

Y ₃ = c ₁ x ₁ + c ₂ x ₂ + ... c _p x _p

(x _i : extracted pulse wave characteristics, a _i , b _i , c _i : discrimination coefficient)

Wherein the distance is obtained on the basis of the following equation using the discrimination score of the examinee and a center value according to a predetermined discriminant function of each sasang constitution, and the step of discriminating the sasang constitution comprises: The corresponding sasang constitution can be determined by the sasang constitution of the testee.

,

,

: 피검사자의 판별점수,

,

,

: 태양인의 판별함수에 따른 중심값 ,

,

,

: 태음인의 판별함수에 따른 중심값,

,

,

: 소양인의 판별함수에 따른 중심값,

,

,

: 소음인의 판별함수에 따른 중심값,

: 피검사자의 판별점수와 태양인의 중심값 간의 거리,

: 피검사자의 판별점수와 태음인의 중심값 간의 거리,

: 피검사자의 판별점수와 소양인의 중심값 간의 거리,

: 피검사자의 판별점수와 소음인의 중심값 간의 거리)(

,

,

: Score of testee's discrimination,

,

,

: Center value according to solar discriminant function,

,

,

: Center value according to the discriminant function of taimin,

,

,

: Center value according to discriminant function of Soyangin,

,

,

: The center value according to the discriminant function of the so-

: The distance between the testee's discrimination score and the center value of the sun person,

: The distance between the testee's discrimination score and the center value of the taewee,

: The distance between the testee's score and the center of the ruler,

: The distance between the testee's discrimination score and the center of the noise)

 The pulse wave characteristic may include the number of the upper peak, the number of the lower peak, the size of each peak, and the entire pulse wave width for a predetermined time obtained from the pulse waveform of the differentiated pulse wave signal.

Wherein the discrimination function has an age-specific discrimination function, and the step of calculating the discrimination score comprises the step of calculating the discrimination score based on the age-group discrimination function corresponding to the age of the inputted test subject when receiving the age of the subject .

The present invention includes a pulse wave detecting unit for detecting a pulse wave signal of a cord, a vein and a chest, a differentiator for differentiating the sensed pulse wave signal, and a processor for determining a sasang constitution from the sensed pulse wave signal, Extracting a pulse wave characteristic from the detected pulse wave signal, calculating a discrimination score based on the extracted pulse wave characteristic and a sasang constitution discrimination function, calculating a distance between the calculated discrimination score and a center value of a discrimination function for each predetermined constitution, And a sasang constitution discriminating device for discriminating a sasang constitution based on the calculated distance, thereby achieving the above object.

The pulse wave detecting unit may include a vibration sensor which is in close contact with a locus, a vein and a chin, and the vibration sensor may be a piezoelectric sensor, a strain gauge, or a condenser microphone.

INDUSTRIAL APPLICABILITY As described above, the present invention can quickly and accurately determine the sasang constitution of a testee using a pulse wave characteristic and a discriminant function detected based on a pulse wave signal of a test subject.

1 is a schematic block diagram of a sate throat discriminating apparatus according to an embodiment of the present invention.
Fig. 2 is a block diagram embodying the components of the sate last constitution discriminating apparatus shown in Fig. 1;
FIG. 3 shows a position at which a sasang constitution discriminating device senses a pulse wave.
4 is a graph showing differential values of the measured pulse waves and pulse waves.
FIG. 5A is a graph showing the differentiated pulse waves measured at the locus, the vein, and the chest.
FIG. 5B is a graph showing an enlarged view of a portion A in FIG. 5A.
Figure 6a, 6b is a graph showing a pulse wave according to the characteristics of the probe on the blood, x _1, x ₂ coordinate systems to explain the derivation of the spirit constitution discriminant function.
7 is a flowchart showing a process of obtaining a discriminant function and a center value.
Fig. 8 is a flowchart showing a method of judging the sasang constitution of the subject.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. It should be understood, however, that the techniques described herein are not intended to be limited to any particular embodiment, but rather include various modifications, equivalents, and / or alternatives of the embodiments of this document. In connection with the description of the drawings, like reference numerals may be used for similar components.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. The general predefined terms used in this document may be interpreted in the same or similar sense as the contextual meanings of the related art and, unless expressly defined in this document, include ideally or excessively formal meanings . In some cases, even the terms defined in this document can not be construed as excluding the embodiments of this document.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a sasang constitution discriminating apparatus and a sasang constitution discriminating method according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 and FIG. 2 are block diagrams of a sasang constitution discriminating apparatus, and FIG. 3 is a view for explaining a process of detecting a pulse wave.

Referring to Figs. 1 and 2, the configuration of a sate lasting constitution discriminating apparatus will be described.

1 is a schematic block diagram of a sate throat discriminating apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the sate phase composition discriminating apparatus includes a pulse wave detecting unit 10 and a processor 20. The pulse wave detecting unit 10 detects a person's pulse wave through the vibration sensor 11 and transmits the detected pulse wave signal to the processor 20. [

1, the processor 20 is composed of a differentiator 22, a pulse wave feature extraction unit 26, and a sasang constitution discrimination unit 27. The pulse wave signal extractor 26 differentiates the pulse wave signal in the differentiator 22 to represent the amount of change of the transmitted pulse wave signal and extracts the pulse wave feature from the differentiated pulse wave signal. The sasang constitution discrimination unit 27 calculates the discrimination score based on the extracted pulse wave features and the sasang constitution discrimination function, and calculates the distance between the calculated discrimination score and the center value of the discrimination function for each predetermined sasang constitution. The sasang constitution discriminating section 27 discriminates the sasang constitution by comparing distances from the central value of the discriminant function of each sasang constitution.

The configuration of a sate lasting constitution discriminating apparatus according to an embodiment of the present invention will be described in detail with reference to FIG. The pulse wave detection process will be described with reference to FIGS. 2 to 4. FIG.

Fig. 2 is a block diagram embodying the components of the sate last constitution discriminating apparatus shown in Fig. 1;

2, the pulse-wave detecting unit 10 includes a vibration sensor 11, a pressure band 12, a valve 13, and an air compressor 14.

The vibration sensor 11 is composed of three pieces, and each of the vibration sensors 11 is brought into close contact with the position of the locus, the vein and the chin. The vibration sensor 11 may be a device capable of detecting a pulse wave such as a piezoelectric sensor, a strain gauge, or a condenser microphone.

3 shows the position of the vibration sensor 11 for detecting a pulse wave.

Referring to Fig. 3, the position of the locus, the vein and the chord in which the vibration sensor 11 is to be located can be known. The branch line is made up of the division of the wrist, the vein and the vein. The vein is contracted from the inside of the radius of the tip of the cuff connected to the hand. The cochlear artery is located at the site of the hand from the vein, and the vein is located at a position away from the vein in the vein.

The pressure band 12 surrounds the wrist where the vibration sensor 11 is located so that the vibration sensor 11 is brought into close contact with each of the vanes. Thereafter, the pressure band 12 is supplied with the compressed air from the air compressor 14, and the pressure band 12 presses the wrist against the vibration sensor 11 to bring them into close contact.

The pressure of the pressure band 12 is reduced by adjusting the valve 13 and when each pulse wave detected by the three vibration sensors 11 and displayed on the output unit 40 reaches a certain size, ) And measure the pulse wave. The pulse wave can be measured in both hands to obtain multiple pulse wave features.

The pressure of the pulse wave can be measured at a specific pressure by releasing the valve 13 after the pressure gauge (not shown) is provided to press the pressure gauge to a set pressure. The pressure gauge and the valve 13 are connected to the processor 20 ) To automate pulse wave measurement.

The pulse wave signal sensed through the above process converts the pulse wave signal through the differential amplifier 21, the differentiator 22, the frequency 3 and the analogue / digital converter 24.

The differential amplifier 21 is used for removing noise of the pulse wave signal. Since the noise generally corresponds to a high frequency signal, the noise can be removed by using a low pass filter (LPF) instead of the differential amplifier 21.

The pulse wave signal with the noise removed is received, and the differentiator 22 differentiates the pulse wave signal to show a change with time of the pulse wave signal. Generally, the peak point of the pulse wave is measured by the contraction wave and the relaxation wave of the heart, so that it is measured in two. The differentiator 22 differentiates the pulse wave signal in order to emphasize and segment the pulse wave characteristic.

Referring to FIG. 4, FIG. 4 is a graph showing differential values of the measured pulse waves and pulse waves.

Referring to FIG. 4, in the case of the extracted pulse wave signal, it can be seen that there are two upper peak points (P _A ) in one period. The pulsatile pulse wave signal has more peak points because it shows the increase / decrease of the pulse wave signal slope, and the pulse wave signal of the differentiated pulse wave is easy to extract the pulse wave characteristic.

If necessary, you can do a second derivative, a third derivative to extract more pulse wave features. The operational amplifier can be substituted for the differentiator 22 and the differential amplifier 21.

The frequency hopper 23 serves to increase the frequency of the pulse wave three times, and is used to highlight the characteristic of the pulse wave. In the embodiment of the present invention, a frequency multiplier for increasing the frequency of the pulse wave by an integer multiple can be used. Using frequency 3 excitation, the frequency is increased and the pulse waveform transmitted at the same time increases, so more information can be obtained.

Since the pulse wave signal that has undergone the above process is an analog signal, it is necessary to convert the pulse wave signal, which is an analog signal, into a digital signal for processing by the processor 20. [ Therefore, the pulse wave signal is converted into a digital signal by using an analog-to-digital converter (ADC) 24.

The pulse wave signal converted into the digital signal is transmitted to the processor 20 and the pulse wave signal processing unit 25 in the processor 20 converts the pulse wave into a pulse wave using the pulse wave signal and transmits the pulse wave to the output unit 40 So that the pulse waveform can be confirmed.

Various pulse wave features can be extracted by the pulse wave feature extraction unit 26 based on the pulse wave type. The pulse-wave-characteristic extracting unit 26 extracts, from the pulse waveform, the number of the upper peak, the lower peak, the size of each peak, the half width of each peak, the distance between each peak, .

The sasang constitution discriminating section 27 discriminates sasang constitution based on the pulse wave characteristic extracted from each vein. The sasang constitution discrimination unit 27 may have a central value according to the discriminant function and a central value according to the discriminant function for each discriminant function and sasang constitution for each discriminant function and sasang constitution.

The discriminant score is calculated by inputting the discriminant variable of the pulse wave characteristic into the discriminant function. The sasang constitution discrimination unit 27 calculates the distance between the discrimination score and the center value of the discrimination function for each sasang constitution, identifies the sasang constitution having the closest distance as the sasang constitution of the examinee, and shows through the output unit.

The output unit 40 represents the pulse waveform through the pulse wave signal processing unit 25 and indicates the sasang constitution finally determined by the sasang constitution discriminating unit 27. [ In addition, the output unit 40 can further provide information such as information on the testee, food, exercise, medical information according to the constitution.

The output unit 40 may be a device for generating an output, or a device having a display unit.

Further, the input unit 30 can receive the age and gender of the subject. In order to increase the accuracy of the sasang constitution discrimination, the sasang constitution discrimination device can set the discrimination function differently according to the age and sex based on the information of the testee.

Hereinafter, the operation of the sludge constitution discriminating apparatus will be described.

When the discrimination function according to age, sex and the like is stored in the sasang constitution discrimination unit 27, the age and sex of the examinee are inputted to the processor through the input unit 30.

The vibration sensor 11 is located at the locus of the subject's wrist, the vein, and the pulse. The pressure band 12 surrounds the vibration sensor 11 and the air compressor 14 connected to the pressure band 12 injects the compressed air into the pressure band 12. The vibration sensor 11 is fixed to each vein by a pressure band 12 into which compressed air is injected. A constant pressure is generated through the valve 13, and the pulse wave detecting unit 10 measures the pulse wave at a constant pressure.

The pulse wave signals measured in the respective cochlea, the vein and the chest are converted so as to facilitate the extraction of the pulse wave characteristic while passing through the differential amplifier 21, the differentiator 22 and the frequency 3 oscillator 23. Thereafter, the pulse wave signal is converted into a digital signal through the analog / digital converter 24 and transmitted to the control unit 28. The transmitted pulse wave signal forms a pulse waveform in the pulse wave signal processing unit 25. [ The pulse waveform can be output or displayed through the output unit 40 in the pulse wave signal processing unit 25.

The pulse wave feature extraction unit 26 extracts a pulse wave feature corresponding to a variable of the discrimination function based on the pulse waveform formed by the graph. The extracted pulse wave characteristic is transmitted to the sasang constitution discrimination section 27.

The sasang constitution discrimination unit 27 calculates the discrimination score of the testee using the discriminant function. The sasang constitution discrimination unit 27 obtains the distance from the center value of the discrimination function for each sasang constitution previously stored. Based on the distance thus obtained, the sasang constitution discriminating section 27 discriminates the sasang constitution having the closest distance as the sasang constitution of the examinee, and the discrimination result is outputted or displayed through the output section 40.

Hereinafter, a method for determining sasang constitution according to an embodiment of the present invention will be described with reference to the accompanying drawings.

The sasang constitution discrimination device extracts the pulse wave features by measuring the pulse wave of people whose sasang constitution is already known or determined for the sasang constitution discrimination. The discrimination function is calculated using the extracted pulse wave characteristics as a variable and input to the sasang constitution discrimination unit 27. The center value of the discrimination function is calculated for each sasang constitution, and the center value is inputted to the sasang constitution discrimination section 27.

Then, the sasang constitution discriminating device measures the pulse wave in the pulse wave detecting section 10 for the examinee who does not know the constitution, extracts the pulse wave characteristic from the pulse wave characteristic extracting section 26, The value is used to determine the sasang constitution.

5A, 6B, 6A, and 6B, a process of obtaining a discriminant function and a center value using each pulse wave characteristic and pulse wave characteristic will be described.

Referring to Figs. 5A and 5B, characteristic of each pulse wave will be described.

FIG. 5A is a waveform graph showing pulse waves obtained by measuring the left, the right, and the left and right wrists in three cycles at the same time.

5A shows a pulse wave of a cord, a vein, and a chorda obtained by amplifying a signal obtained by attaching a condenser microphone sensor to a locus of a radial artery of a left wrist with a vibration sensor using an operational amplifier.

When a capacitance type microphone sensor having capacitance as the vibration sensor 11 is used, the differential circuit can be constituted by the capacitance component of the sensor and the resistance component of the pulse wave measuring system. In this case, the measured pulse wave is composed of a differential pulse (acceleration pulse) rather than a normal pulse wave. Since the width of the entire one-cycle pulse wave is equal to one cycle, it is obtained as W _p .

5B is a waveform graph showing an enlarged peak area A in one period of the cusp of FIG. 5A.

Referring to FIG. 5B, peaks in one cycle of the left wrist cortex are represented by P _{cu1 ,} P _{cu2 ,} P _{cu3 ,} P _{cu4 ,} P _cd1, P _{cd2 ,} P _{cd3 ,} P _{cd4 , and} P _cd5 . Of these, the upper peaks are P _{cu1 ,} P _{cu2 ,} P _{cu3 ,} P _cu4 , And the number of the upper peak is four. The lower peak P _{cd1 ,} P _{cd2 ,} P _{cd3 ,} P _{cd4 , and} P _cd5 , and the number of the bottom peaks is five.

If the size of the peak is above a first peak (P _cu1), the peak and the value A ₁ at the peak, and the value A ₂ at is peak peaks in the case of the upper second peak (P _cu2), the upper third peak (P _cu3 ) is the value A ₃ in the peak peaks, and in the case of the upper fourth peak (P _cu 4) is the value A ₄ in the peak peaks. Although only the case of the upper peak is described, the peak size can be similarly obtained in the case of the lower peak.

The distance between each peak is dp ₁₂ , the distance between the upper first and second peaks (P _{cu1 ,} P _cu2 ). In this way, the distance between each peak, such as the distance between the upper second and second peaks, is derived.

Full width at half maximum of each peak is the width W _h of the area of the first peak having a value of A _1/2 corresponding to a half of the upper first peak will be described based on the (P _cu1), a first peak magnitude (A ₁₎ of .

In the same manner, the number and size of the upper and lower peaks, the distance between the peaks, the width of the peak of the peak, and the width of the entire one-cycle pulse wave can be obtained for the left and right chorus, right chorus,

As described above, various pulse wave features can be extracted from the pulse waveform of the differentiated pulse wave signal, and the discriminant function can be calculated using the pulse wave characteristics as the determination variables (x ₁ , x ₂ , ..., x _p ).

The process of obtaining the discriminant function will be described based on Figs. 6A and 6B.

6A and 6B are graphs showing a process of orthogonalizing the pulse wave characteristic data to an arbitrary straight line.

To roughly explain the process of obtaining a discriminant function, a process of obtaining a discriminant function using two kinds of pulse wave characteristics acquired from people with two kinds of constitutions will be described.

6A and 6B, people having a constitution G ₁ (for example, noise) and a constitution G ₂ (for example, lunation) are classified into two types of characteristics extracted from the pulse waves measured from these people (for example, Number = x ₁ , maximum peak size = x ₂ ) data. x ₁ and x ₂ represent discriminant variables having the respective pulse wave characteristics, and FIG. 6A is a graph showing the results of the G ₁ and G _{2 constructions} .

As a method of classifying the constitution, there is a method of orthogonalizing each pulse wave characteristic to an arbitrary straight line as shown in FIG. 6A. 6A and 6B, it can be seen that orthogonal projection of the pulse wave features on the straight line of FIG. 6B is well separated without overlapping regions between constitutions. Figure 6a is difficult to be in a pulse-wave characteristics and pulse wave characteristics of overlap of G ₂ constitution of the G ₁ sieving orthogonal projection to the straight line is present, the constitution is classified, Figure 6b is the pulse wave characteristics of the G ₁ sieving orthogonal projection to the straight line Y and G ₂ Since the pulse wave features of the constitution do not overlap, it is easy to classify the constitution.

When the points representing each pulse wave feature are orthogonal to the straight line, the linear discriminant function is used to determine the straight line in which each constitution is best separated. This is the case when the ratio of variance of pulse wave characteristics between two constitutions to the variance of pulse wave characteristics in constitution is large.

,

라고 하고,

,

를 직선 Y에 정사영 한 것을 각각 μ_1y, μ_2y라고 정의한다. 정사영된 두 체질간의 분산은 도 6b에서 표시된 v₁₂이고, v₁₂는 (μ_1y - μ_2y)²으로 나타낼 수 있다. 직선 Y에 정사영된 맥파특징들 중에 체질 G₁, G₂내의 분산을 각각 v₁ = σ² _1y, v₂ = σ² _2y로 나타낼 수 있다. 체질 내의 분산은 각 체질별 분산을 더한 σ² _1y + σ² _2y = σ² _y이라고 표현할 수 있다.An average vector having an average value of the pulse wave characteristics of the constitutions G ₁ and G ₂ , respectively

,

And,

,

Each of the orthogonal projection on a straight line Y μ _1y, μ _2y . The variance between the orthophoric two constitutions is v ₁₂ as shown in Figure 6b, and v ₁₂ is (μ _1y - _2y μ) it can be represented by ^2. The variance in the constitutions G ₁ and G ₂ in the orthogonal pulse wave features on the straight line Y can be expressed as v ₁ = σ ² _1y and v ₂ = σ ² _2y , respectively. The variance in the constitution is σ ² _1y + ² _2y = σ ² _y .

The ratio J (a) of the variance in the variance between the two constitutions can be expressed as:

A straight line Y with a maximum value of J (a) is a linear discriminant function.

Hereinafter, a process for obtaining a linear discriminant function corresponding to the straight line Y where J (a) is the maximum will be described.

The two types of pulse wave characteristics (upper peak number, maximum upper peak size) measured from n ₁ persons belonging to the constitution G ₁ are X ₁ and are expressed as follows.

The two types of pulse wave characteristics measured from n ₂ persons belonging to the constitution G ₂ are X ₂ and are expressed as follows.

라고 하고, 직선 Y(선형판별함수) 위에 점 P를 정사영하기 위한 변환벡터는

라고 하면, 판별함수는

라고 쓸 수 있다.x ₁ , x ₂ The coordinates of a point P on the coordinate system are

, And the transformation vector for orthogonalizing the point P on the straight line Y (linear discriminant function) is

, The discriminant function is

Can be written.

와

이며, 합동공분산행렬이 S_pl이면, 직선 Y에 정사영된 체질 G₁과 G₂의 기대값(평균) μ_1y와 μ_2y, 분산 σ² _y = σ² _1y + σ² _2y은 다음으로 주어진다. For the above pulse wave features, the mean vectors of the two constellations G ₁ and G ₂ are

Wow

And the joint covariance matrix is S _pl , the expected values (mean) μ _1y and μ _2y of the orthogonal constitutions G ₁ and G ₂ on the straight line Y and the variance σ ² _y = σ ² _1y + σ ² _2y is given by

(Var (Y): variance for Y)

Based on the equations expressing the dispersion ratio in the dispersion between the two constitutions and the above equations The following equation is derived.

The transformation vector a where the value of J (a) becomes the maximum appears on the basis of maximization lemma as follows.

(c: 임의의 계수)

(c: arbitrary coefficient)

When c is 1, the linear discriminant Y is as follows.

과

와 합동공분산행렬 S _pl은 아래와 같다.Here, the average vector of the two constitutions G ₁ and G ₂

and

And the joint covariance matrix S _pl are as follows.

Where S ₁ and S ₂ are covariance matrices of the constituents G ₁ and G ₂ data, respectively.

,

는 아래와 같다.The center of gravity of each constitution G ₁ (noise) and constitution G ₂ (lunation)

,

Are as follows.

The discriminant function values for the new pulse wave property x ₀ which does not know the constitution are as follows.

와 두 체질의 중심값

,

와의 거리,At this time, the discriminant function value (discrimination score)

And the central values of the two constitutions

,

Distance,

,

,

이면 x ₀가 체질 G₁에 속하고,

이면 x ₀가 체질 G₂에 속한다.Lt; / RTI >

If x ₀ belongs to the constitution G ₁ ,

Then x ₀ belongs to the constitution G ₂ .

The sasang constitutional discrimination function is obtained from the pulse wave characteristic acquired from a person who knows the sasang constitution as described above, and then the sasang constitution can be discriminated by using the pulse wave characteristic of the person who does not know the sasang constitution.

Four extender G _1, G _2, G _3, G when to segment ₄ (1) molecules between the constitution distribution of the expressions using the squared sum matrix B between the constitution and the denominator of the constitution within the dispersion is sieved within the squared sum matrix E (1) can be modified as follows.

The square sum matrix B between the constitutions is as follows.

,

,

,

는 각각 체질 G₁, G₂, G₃, G₄의 평균벡터이며,

는 전체 체질의 평균벡터이다.here

,

,

,

Lt; RTI ID = 0.0 &_gt; G1, G ₂ , G ₃ , and G ₄ ,

Is the mean vector of total constitution.

The in-group square sum matrix E is as follows.

Here, S ₁ , S ₂ , S ₃ , and S ₄ denote the constituents G ₁ , G ₂ , G ₃ , and G ₄ data.

는

의 최대 고유값

에 해당하는 고유벡터

이고 이 때의 F값은

이다. 그러므로 판별함수는

는 체질 평균들의 차이를 가장 크게 해주는 즉 체질을 구별해주는 함수이다.

는

을 포함하여 3개의 고유값

,

,

와 이에 해당하는 고유벡터

,

,

를 가지므로, 3개의 판별함수

,

,

가 얻어 지며, 이 판별함수들은 각 체질의 평균(중심값)

,

,

,

의 차이가 크게 나도록 해주는 차원 또는 방향을 가진다.To maximize F

The

Maximum eigenvalue of

Eigenvector corresponding to

And the F value at this time is

to be. Therefore,

Is a function that makes the difference between the constitution averages the greatest, that is, the constitution.

The

And three eigenvalues

,

,

And corresponding eigenvectors

,

,

Therefore, the three discriminant functions

,

,

, And these discriminant functions are the mean (center value) of each constitution,

,

,

,

And the direction or magnitude of the difference.

,

,

에 의한 체질 G₁의 평균값(중심값)을

,

,

라고 하고, 판별함수

,

, 에 의한 체질 G₂의 평균값(중심값)을

,

,

라고 하고, 판별함수

,

,

에 의한 체질 G₃의 평균값(중심값)을

,

,

라고 하고, 판별함수

,

,

에 의한 체질 G₄의 평균값(중심값)을

,

,

라고 하면, 이것들은 다음의 식으로 주어진다.Discriminant function

,

,

(Center value) of the constitution G ₁ by

,

,

, And the discriminant function

,

, (Center value) of the constitution G ₂ by

,

,

, And the discriminant function

,

,

(Center value) of the constitution G ₃ by

,

,

, And the discriminant function

,

,

(Center value) of the constitution G ₄ by

,

,

These are given by the following equations.

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

에 의한 값(판별점수)를

,

,

라고 하면

,

,

이며 판별 규칙은 아래 식으로 나타내는 판별함수

,

,

에 대한 사상체질별 중심값과 피검사자의 판별점수간 거리 중 가장 근접한 사상체질의 중심값에 해당하는 사상체질이 피검사자의 사상체질로 판별된다.The discriminant function for the new pulse wave characteristic x ₀ of the subject who does not know the constitution

,

,

(The discrimination score) by

,

,

When you say

,

,

And the discrimination rule is the discriminant function

,

,

The sagittal constitution corresponding to the center value of the sagittal constitution closest to the distance between the center value of the sagittal constitution and the discrimination score of the testee is judged to be the sasang constitution of the testee.

,

,

,

중에서

가 가장 작으면 피검자의 체질은 G₂이다.For example

,

,

,

Between

, The constitution of the subject is G ₂ .

That is, since the discrimination function has four kinds of constitution, at least three discrimination functions are required to classify constitution into four kinds.

In order to facilitate understanding, a linear discriminant function was obtained for two types of constitution and two types of pulse wave characteristic data. However, the type of characteristic data of the pulse wave was generalized so that k types and the constitution were obtained by obtaining a linear discriminant function The process is similar to the two cases, two kinds, as follows.

x ₁ , x ₂ , ... , x _p The coordinates of a point P on the coordinate system are as follows.

The transformation vector for orthogonalization of the point P on the sagittal constitutional discriminant Y and the sagittal constitutional discriminant Y is as follows.

,

,

로 표현되고, 계산 과정은 상술한 2개의 맥파특징을 변수로 하여 계산한 경우와 유사하다.The discriminant function

And the calculation process is similar to the case of calculating the above two pulse wave characteristics as variables.

A method of classifying the constitutions G ₁ and G ₂ using the sasang constitutional discrimination function obtained by the above method will be described below as an example.

Table 1 shows the characteristics obtained by measuring and measuring three pulse waves of each person with a constitution G ₁ and a constitution G ₂ . Table 1 shows the pulse wave characteristic data of persons who know the constitution and the pulse wave characteristic data of a person who does not know the constitution as follows.

constitution G ₁ G ₁ G ₁ G ₂ G ₂ G ₂ do not know Upper peak number One One 2 3 4 3 3 Maximum Top Peak Size 5 3 4 5 7 8 6

The two types of pulse wave characteristics measured from three persons belonging to the constitution G ₁ are X ₁ and are expressed as follows.

The two types of pulse wave characteristics measured from three persons belonging to the constitution G ₂ are X ₂ and are expressed as follows.

The process of obtaining a sasang constitutional discriminant function from a pulse wave characteristic of a person who knows constitution will be described below.

The mean vector, covariance matrix and joint covariance matrix of each constitution are calculated as follows.

From the average vector, the covariance matrix and the joint covariance matrix, the linear discriminant function is calculated as follows.

,

는 아래와 같이 산출된다.The mean (center value) of the constitutions G ₁ and G ₂

,

Is calculated as follows.

는 아래와 같이 산출된다.The discrimination score on the pulse wave characteristic x ₀ of a person who does not know the constitution

Is calculated as follows.

이므로 x ₀가 G₂에 속한다. 따라서, 피검사자의 체질은 G₂이다.

, So x ₀ belongs to G ₂ . Therefore, the constitution of the testee is G ₂ .

The first, second and third discrimination functions Y ₁ , Y ₂ , and Y ₃ for distinguishing sasang constitution can be calculated in the same manner as described above .

7 is a flowchart showing a process of obtaining a discriminant function and a center value.

Referring to FIG. 7, in the process of obtaining the discriminant function and the center value, a pulse wave signal is detected from a locus, a vein and a chord of a subject whose sasang constitution is determined or known (S710) The pulse wave signal is differentiated (S720), the pulse wave characteristic is extracted from the differentiated pulse wave signal (S730), the discriminant function is calculated based on the extracted pulse wave characteristic (S740) (S750) by calculating the center value of each sasang constitution on the basis of the calculated values.

The pulse wave signal of the subject to which the sasang structure has been determined is sensed through the vibration sensor 11 in the region of the heart, the vein and the pulse (S710). In order to add the pulse wave characteristic of the sensed pulse wave signal, the differentiator 22 differentiates the pulse wave signal (S720).

Then, based on the differentiated pulse wave signal, the pulse wave feature extraction unit 26 extracts a pulse wave feature (S730).

The pulse wave characteristic is a characteristic represented by the waveforms of the left and right cochleas, the vein and the chest, and is a characteristic of the pulse wave such as the number of upper and lower peaks, the size of each peak, the half width of each peak, It corresponds to a feature that can be extracted.

The number of upper peaks, the number of lower peaks, the size of each peak, and the entire pulse width are essential features for forming a discriminant function. The accuracy of the discrimination is enhanced when various pulse wave features are extracted and used. Thus, if necessary, more features can be extracted through additional derivatives.

As shown in FIG. 4, various pulse wave features can be extracted from the pulse waveform of the differentiated pulse wave signal, and the discriminant function can be calculated using the pulse wave characteristics as the determination variables (x ₁ , x ₂ , ..., x _p ) S740).

As described above, since the discrimination function has four kinds of constitution, at least three discrimination functions are required to classify constitution into four kinds.

5A to 7, the first, second, and third discrimination functions are Y ₁ , Y ₂ , and Y _3, and are made up of the linear functions of the determination variables as follows.

In the discriminant function, a _i , b _i , and c _i correspond to the discriminant coefficients, and the discriminant coefficients are determined so that the ratio of the variance in the dispersion to the constitution as described above is maximized.

The center values of the respective sasang constitutions are obtained for the first, second and third discrimination functions thus obtained (S750). This center value is determined by the pulse-wave characteristic group known from the spirit constitution variables (x _1, x _2, ···, x _p) for the first, second and third discrimination function (Y _1, Y _2, Y ₃ ) ≪ / RTI >

, 제2 판별함수 중심값은

, 제3 판별함수 중심값은

로 표시할 수 있다. 태음인, 소양인 및 소음인의 경우에도 상기와 같이, 태음인의 판별함수별 중심값은

,

,

, 소양인의 판별함수별 중심값은

,

,

, 소음인의 판별함수별 중심값은

,

,

로 표시할 수 있다.The first discriminant function center value of the sun person is

, The second discriminant function center value is

, The third discriminant function center value

As shown in FIG. In the case of Taeumin, Soyangin, and Soeumin,

,

,

, The center value of the discriminant function of Soyangin is

,

,

, The center value of the discriminant function of the so-

,

,

As shown in FIG.

,

,

,

), 제2 판별함수 중심값(

,

,

,

)와 제3 판별함수 중심값(

,

,

,

) 들은 프로세서의 사상체질 판별부에 미리 입력될 수 있고, 프로세서가 사상체질의 판별을 수행할 때, 판별함수나 중심값이 입력될 수도 있다.The first discriminant function center value of the first, _second , and third discriminant functions (Y ₁ , Y ₂ , Y ₃ ) and the Sun, Taeumin, Soyangin,

,

,

,

), The second discriminant function center value (

,

,

,

) And the third discriminant function center value (

,

,

,

) May be input in advance to the sate structure determiner of the processor, and the discrimination function or the center value may be input when the processor performs the sate structure determination.

Further, in order to increase the accuracy of the discrimination, the above process can be repeated using the pulse wave characteristics of people whose sasang constitution has been determined through the sasang constitution discrimination device. Through this repeated process, the discriminant function and the center value can be fed back, and the discriminant function and the center value are updated through this feedback.

When the testee's pulse wave characteristics are accumulated and the discriminant function and the center value are updated, the accuracy of the sasang constitution discrimination using the sasang constitution discrimination apparatus becomes high.

The sasang constitution of the examinee can be determined using the discriminant function and the center value of the discriminant function determined as described above. The method of judging the sasang constitution of the examinee will be described with reference to Fig.

Fig. 8 is a flowchart showing a method of judging the sasang constitution of the subject.

Referring to FIG. 8, in the method of discriminating the subject's constitution, the pulse wave signal is detected from the cord, the vein and the chest of the examinee (S810), differentiated to express the change amount of the sensed pulse wave signal (S820) (S830), calculates a discrimination score based on the extracted pulse wave features and a sasang constitution discrimination function (S840), calculates a distance between the calculated discrimination score and the center value of the discriminant function for each sasang constitution (S850), and the sasang constitution is determined based on the calculated distance (S860).

(X ₁ , x ₂ ,..., X _p ) of the person whose sasang constitution mentioned in FIG. 7 has been determined or who already knows the sasang constitution is discriminated, (S740), which is computed as (A).

In addition, the center value of the discriminant function is either determined by the sasang constitution or the pulse wave feature of a person who already knows the sasang constitution is calculated using the discriminant variable (x ₁ , x ₂ , ..., x _p ) S750) receives the central value of sasang constitution (B).

In the method of discriminating the spermatic constitution of the subject, the pulse wave signal is detected from the cord, pulse, and pulse of the examinee (S810), differentiated to indicate the change amount of the sensed pulse wave signal (S820), and the pulse wave characteristic is extracted from the differentiated pulse wave signal (S830) is the same as the method for obtaining the discriminant function and the center value in Fig.

The sasang constitution discriminating device extracts the pulse wave features such as the number of the upper peak, the number of the lower peak, the size of each peak, the half width of each peak, the distance between each peak, , (X ₁ , x ₂ , ..., x _p ) are substituted into the first, second and third discrimination functions determined above. The discrimination score (y _o1 , y _o2 , y _o3 ) of the examinee can be calculated using the first, second and third discrimination functions (S840).

Using the calculated first, second and third discrimination scores (y _o1 , y _o2 , y _o3 ) and the discriminant function center value of each sasang constitution, the processor (20) judges the score of the testee The distance of the discriminant function center value for each constitution can be obtained (S850).

The distance between the discriminant function center value of each sasang constitution and the discrimination score of the testee can be calculated by the following process.

The distance between the discriminant function center value and the discrimination score of the sun person is calculated by summing the difference between the discrimination score of the first, second and third discrimination functions of the testee and the first, second and third discrimination function center values of the sun person The square root of the positive value of the value is calculated. In the same way, the distance between Taeumin, Soyangin, and Soeumin is calculated and expressed as follows.

The sasang constitution discriminating apparatus can discriminate the sasang constitution using the distances according to the sasang constitution according to the score of discrimination of the testee (S860).

)가 가장 짧으면, 피검사자의 체질은 태양인으로 판별된다.The distance of each sasang constitution is the distance between the test taker 's discrimination score and the sasang constitution discrimination function center value, so that as the distance from the sasang constitution discrimination function becomes closer, the examinee has the sasang constitution characteristic. Thus, the sasang constitution corresponding to the center value of the sasang constitution closest to the distance between the center value of the sasang constitution and the discrimination score of the testee is judged as the sasang constitution of the testee. For example, the distance between the discriminant score of the examinee and the central value of the sun person

) Is the shortest, the constitution of the testee is judged to be sunburn.

The discriminant function and the center value can be updated by using the pulse wave characteristics obtained in the process of discriminating the subject from the sasang constitution discriminated as described above. Before the step of calculating the discriminant function (S740), the pulse wave characteristic of the testee is inputted as a discriminant function variable, and the discriminant function and the center value of the sasang constitution can be updated by using this. When the data of the testee is accumulated through the update, the accuracy of the sasang constitution discrimination by the discrimination function can be increased.

The discrimination function and the discrimination score based on the accumulated data can be used by using the method and apparatus for discriminating sasang constitution according to an embodiment of the present invention. Based on these data, when the discrimination score is calculated, the sasang constitution is judged objectively. In this way, the discriminator 's subjectivity is not intervened and the accuracy of sasang constitution discrimination is enhanced.

In addition, by continuously updating the center value of the discriminant function and the sasang constitution, if the pulse wave features are accumulated for each sasang constitution using the sasang constitution discrimination apparatus according to the embodiment of the present invention, the accuracy of the sasang constitution discrimination becomes high.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: a pulse wave detecting unit 11: a vibration sensor
12: pressure band 13: valve
20: Processor 21: Differential Amplifier
22: differentiator 23: frequency 3
24: analog / digital converter 25: pulse wave signal processor
26: pulse wave feature extraction unit 27: sasang constitution discrimination unit
30: input unit 40: output unit

Claims (7)

Detecting a pulse wave signal from a pulse wave, a pulse wave and a pulse wave in a pulse wave detecting unit;
Differentiating the pulse wave signal to differentiate the detected pulse wave signal in the differentiator;
Extracting a pulse wave feature from the differentiated pulse wave signal at a processor;
Calculating a discrimination score based on the extracted pulse wave characteristic and sasang constitution discrimination function in the processor;
Calculating a distance between the calculated discrimination score and a center value of a discrimination function for each sasang constitution in the processor; And
And determining the sasang constitution based on the calculated distance in the processor. The method according to claim 1,
Wherein the sasang constitutional discrimination function comprises the following equation for distributing the discrimination score by constitution with the extracted pulse wave characteristics of the examinee as a variable.
Y ₁ = a ₁ x ₁ + a ₂ x ₂ + ... a _p x _p
Y ₂ = b ₁ x ₁ + b ₂ x ₂ + ... b _p x _p
Y ₃ = c ₁ x ₁ + c ₂ x ₂ + c _p x _p
(x _i : extracted pulse wave characteristics, a _i , b _i , c _i : discrimination coefficient) 3. The method of claim 2,
The distances are determined based on the following formula using the discrimination score of the testee and a center value according to a predetermined discriminant function of each sasang constitution, and the step of discriminating the sasang constitution comprises: And the sasang constitution corresponding to the value having the sasang constitution.

(

,

,

: Score of testee's discrimination,

,

,

: Center value according to solar discriminant function,

,

,

: Center value according to the discriminant function of taimin,

,

,

: Center value according to discriminant function of Soyangin,

,

,

: Center value according to the discriminant function of the so- The method according to claim 1,
The pulse-
The number of the upper peak, the number of the lower peak, the size of each peak, and the total pulse width of the pulse wave for a predetermined time obtained from the pulse waveform of the differentiated pulse wave signal The method according to claim 1,
The discriminant function has an age-specific discriminant function,
The step of calculating the discrimination score includes:
And when the age of the subject to be examined is input, the judgment score is calculated based on the age-based discrimination function corresponding to the age of the inputted test subject. A pulse wave detecting unit for detecting a pulse wave signal of a cord, a vein and a chest;
A differentiator for differentiating the sensed pulse wave signal; And
And a processor for determining a sasang constitution from the differentiated pulse wave signal,
The processor comprising:
Extracting a pulse wave characteristic from the differentiated pulse wave signal, calculating a discrimination score based on the extracted pulse wave characteristic and a sasang constitution discrimination function, and calculating a distance between the calculated discrimination score and a center value of a discrimination function for each predetermined constitution, , And determines a sasang constitution based on the calculated distance. The method according to claim 6,
The pulse-
A vibration sensor which is in close contact with the cochlea, the vein and the chin,
Wherein the vibration sensor is a piezoelectric sensor, a strain gauge, or a condenser microphone,

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