CN106934199A - A kind of psychological pressure appraisal procedure and device - Google Patents

Abstract

The present invention is applied to healthy control technology field, there is provided a kind of psychological pressure appraisal procedure and device, methods described include：Collecting sample data, sample data is specially including the psychological characteristics such as physiological characteristic data, pressure scale data and individual essential information etc., by construction feature data matrix；Entry evaluation is carried out to physiological characteristic data, psychological characteristics data with FCM Algorithms and Ordered Weighted arithmetic average operator respectively, respective Classification and Identification result is obtained；Whether benign secondary classification is carried out to the Classification and Identification result that wherein there is psychological pressure according to Decision-level fusion model, output has the secondary classification result of psychological pressure；It is input into as statistical model using secondary classification result, according to the Cylinder pressure quantization functions based on pressure system theoretical model, obtains individual mind pressure quantized value.The present invention, realizes the graded quantitative assessment to psychological pressure.

Description

A kind of psychological pressure appraisal procedure and device

Technical field

The invention belongs to healthy control technology field, more particularly to a kind of psychological pressure appraisal procedure and device.

Background technology

Research finds that more than 90% disease is all triggered by psychological pressure, and chronic psychological pressure can be brought A series of pathology, physiology risk, directly affect the physical and mental health of people, and long-term psychological pressure is also to lead The one of the main reasons of inferior health is caused, therefore, it is the weight that everybody pays close attention to accurately to estimate and assess psychological pressure Want one of health problem.It is accurate to estimate the basis that psychological pressure is assessment psychological pressure, a large amount of researchs both at home and abroad Confirm to be surveyed from psychology and physiology aspect by autonomous assessing method, behavior measure method and physiology determination method Amount psychological pressure state is practicable, and psychophysiology determination method can be under automatism due to it Detection emotion and physiological status, for subject, sense of discomfort is minimum and is better able to reflect objective true Real affective state.But, current psychological pressure is estimated or is assessed, or only uses mental scale Assessment, or detection judge only carried out using physiological parameter, such as：Chinese patent CN103584872B There is provided a kind of psychological pressure appraisal procedure based on multi-physiological-parameter fusion, this invention is based on many physiology ginseng The technique study of the assessment psychological pressure of number fusion, specifically includes four kinds of electrocardio, myoelectricity, pulse wave and brain electricity Physiological signal, gathers by multi-parameter signals, pre-processes, feature extraction and psychological pressure emotion recognition, And merged.Melt relative to single parameter Classification and Identification, or the fusion of Multi-parameter data level or feature level Close, so as to recognize psychological pressure emotion exactly, it is impossible to reach subjective and objective combination, multi-level quantification is gone Assessment psychological pressure, while carrying out psychological regulation with reference to feedback training.

The content of the invention

The embodiment of the invention provides a kind of psychological pressure appraisal procedure and device, it is intended to solve prior art not Subjective and objective combination can be reached, the going of multi-level quantification assesses psychological pressure, while with reference to feedback training Carry out the problem of psychological regulation.

On the one hand, there is provided a kind of psychological pressure appraisal procedure, methods described includes：

Collecting sample data, the sample data be specially including physiological characteristic data, psychological characteristics data with And individual essential information, construction feature data matrix；

Respectively with FCM Algorithms and Ordered Weighted arithmetic average operator to the physiological characteristic data, the heart Reason characteristic carries out entry evaluation, obtains respective Classification and Identification result；

According to Decision-level fusion model the Classification and Identification result that wherein there is psychological pressure is carried out it is benign with There is the secondary classification result of psychological pressure in no secondary classification, output；

It is input into as statistical model using the secondary classification result, according to based on pressure system theoretical model Cylinder pressure quantization functions, obtain individual mind pressure quantized value.

Further, the physiological characteristic data includes：Electrocardiosignal and its characteristic value and breath signal and its Characteristic value, the electrocardiosignal and its characteristic value include special based on electrocardiographic wave feature, heart rate rhythm pattern Levy and heart rate variability feature；The breath signal and its characteristic value include breath rhythm pattern feature, breathing Statistical nature and respiratory waveform feature.

Further, the psychological characteristics data include：Autonomous Research advancement on measuring scale feature and social action evaluation and test amount Table feature, the autonomous Research advancement on measuring scale feature includes that individual information, thinking ability, emotional health, personality are complete It is whole；The social action evaluation and test scale feature includes environment adaptation, habits and customs and human communication.

Further, the Classification and Identification result includes health status, moderate psychological pressure and severe psychology pressure Power, the Classification and Identification result specially moderate psychological pressure that there is psychological pressure and severe psychology pressure Power, it is described the Classification and Identification result that wherein there is psychological pressure is carried out according to Decision-level fusion model it is good Property whether secondary classification, output there is psychological pressure secondary classification result be specially：

The Classification and Identification result with moderate psychological pressure and severe psychological pressure is judged according to Decision-level fusion model Whether it is eustress, if eustress, then current class recognition result classifies as pressure-less state i.e. Health status, if not eustress, then current class recognition result is classified as and has the two of psychological pressure Subseries result.

Further, Cylinder pressure quantization function F (t) is specially：

Wherein, the ρ is the density of liquid, is also irritability classification or pressure Producing reason, and L is bottom Length, be also individual maximum bearing capacity, h is the intensity of irritability, is also the intensity of pressure, the value of h Scope is 1<h<H, t are the time, namely pressure perdurabgility.

On the other hand, there is provided a kind of psychological pressure apparatus for evaluating, described device includes：

Data receipt unit, for collecting sample data, the sample data is specially including physiological characteristic number According to the characteristic matrix that, psychological characteristics data and individual essential information build；

First-level class unit, for respectively with FCM Algorithms and Ordered Weighted arithmetic average operator to institute Stating physiological characteristic data, psychological characteristics data carries out entry evaluation, obtains respective Classification and Identification result；

Secondary classification unit, for the classification according to Decision-level fusion model to wherein there is psychological pressure Recognition result carries out whether benign secondary classification, and output has the secondary classification result of psychological pressure；

Pressure quantifying unit, for being input into as statistical model using the secondary classification result, according to based on pressure The Cylinder pressure quantization functions of Force system theoretical model, obtain individual mind pressure quantized value.

Further, the Classification and Identification result includes health status, moderate psychological pressure and severe psychology pressure Power, the Classification and Identification result specially moderate psychological pressure that there is psychological pressure and severe psychology pressure Power, the secondary classification unit according to Decision-level fusion model specifically for judging with moderate psychological pressure and weight Whether the Classification and Identification result for spending psychological pressure is eustress, if eustress, then current class is known Other result classifies as pressure-less state i.e. health status, and if not eustress, then current class identification is tied Fruit classifies as the secondary classification result that there is psychological pressure.

Further, Cylinder pressure quantization function F (t) is specially：

Wherein, the ρ is the density of liquid, is also irritability classification or pressure Producing reason, and L is bottom Length, be also individual maximum bearing capacity, h is the intensity of irritability, is also the intensity of pressure, the value of h Scope is 1<h<H, t are the time, namely pressure perdurabgility.

The embodiment of the present application includes advantages below：

Using multi-physiological-parameter characteristic value, mental scale characteristic value is combined, by subjective and objective combination, excluded Positive psychological pressure is fallen, and psychological pressure has been entered with reference to fuzzy theory, decision-making level's information fusion model Row multistage precise classification, has taken into full account environment adaptation, cognitive interaction and the autonomous shadow evaluated to psychological pressure The mechanism of sound, sets up the Cylinder quantization functions based on pressure system model, so as to realize to psychological pressure Graded quantitative assessment.

Brief description of the drawings

Fig. 1 is the flow chart of the psychological pressure appraisal procedure that the embodiment of the present invention one is provided；

Fig. 2 is that the Cylinder pressure that the embodiment of the present invention one is provided quantifies model schematic；

Fig. 3 is the Cylinder cylinder spaces illustraton of model and Mathematical Modeling figure that the embodiment of the present invention one is provided；

Fig. 4 is the concrete structure block diagram of the psychological pressure apparatus for evaluating that the embodiment of the present invention two is provided.

Specific embodiment

In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing and reality Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only Only it is used to explain the present invention, is not intended to limit the present invention.

Realization of the invention is described in detail below in conjunction with specific embodiment：

Embodiment one

Fig. 1 shows the flow of realizing of the psychological pressure appraisal procedure that the embodiment of the present invention one is provided, and detailed description is such as Under：

In step S101, collecting sample data, the sample data be specially including physiological characteristic data, The characteristic matrix that psychological characteristics data and individual essential information build.

In the present embodiment, the sample data is acquired by clinical or community family.The physiology Characteristic includes：Electrocardiosignal and its characteristic value and breath signal and its characteristic value, the electrocardiosignal and Its characteristic value includes being based on electrocardiographic wave feature, heart rate rhythm pattern feature and heart rate variability feature；Institute Stating breath signal and its characteristic value includes breath rhythm pattern feature, breathing statistical nature and respiratory waveform feature, Physiological data acquisition equipment includes but is not limited to the wearable device collection of textile electrode class.The psychological characteristics Data include：Autonomous Research advancement on measuring scale feature and social action evaluation and test scale feature, the autonomous Research advancement on measuring scale are special Levy complete including individual information, thinking ability, emotional health, personality；The social action evaluation and test scale is special Levy including environment adaptation, habits and customs and human communication.

In step s 102, respectively with FCM Algorithms and Ordered Weighted arithmetic average operator to the life Reason characteristic, psychological characteristics data carry out entry evaluation, obtain respective Classification and Identification result.

In the present embodiment, the Classification and Identification result includes health status, moderate psychological pressure and the severe heart Reason pressure, wherein, the Classification and Identification result specially moderate psychological pressure that there is psychological pressure and Severe psychological pressure.Below illustrate in health status, moderate psychological pressure and severe psychological pressure be three Cluster centre, FCM Algorithms are a kind of very effective fuzzy clustering algorithms, specifically, hypothesis is treated The collection of psychological pressure status level of classifying is combined into：Collection is combined into finite data and gives birth to The set of reason characteristic and psychological characteristics data, element x is d dimensional vectors, searches out a fuzzy division square Battle array (u_ij)_c×nAnd c cluster centre point V={ v₁,v₂,...,v_cCause object function:

Meet:

Wherein m ∈ [1 ,+∞] are referred to as FUZZY WEIGHTED coefficient, u_ijReferred to as degree of membership, x_jRepresent that vector is under the jurisdiction of central point Degree, d (x_j, vi) and it is object function x_jWith the Euclidean distance of vi.

Because there are many factors in the formation of psychological pressure：Psychology, it is physiological, social, environment because Element etc., the influence power that these factors are formed to psychological pressure, development is applied varies with each individual, and possesses obvious Subjectivity and individual difference, exist only by the cluster result of FCM Algorithms acquisition and do not conform to a lot Reason situation, such as environmental difference, social status difference, health difference are not to the patience of psychological pressure With, therefore by building Induced ordered weighted averaging operator, reduce as far as possible by individual difference formed it is unreasonable Situation.

In addition, the Ordered Weighted arithmetic average operator OWA of psychological characteristics data may be defined as：

If function OWA:Rⁿ→ R, if:

Wherein w=(w₁,w₂,...,w_n)^TIt is the associated weights of and function OWA Vector, wherein, correlation analysis are carried out with clinical report result to the psychological characteristics data chosen by clinic, Different weights are assigned to the psychology physiological value chosen according to significance, is met：And b_jIt is data group (a₁,a₂,...,a_n) in the big element of jth, R is real number Collection.

The advantage of Ordered Weighted arithmetic average operator is:To psychology and physiological characteristic magnitude data (a₁,a₂,...,a_n) Re-started by order from big to small and sort and assembled by weighting, due to value a_iWith weight w_jIt is no to appoint What is contacted, only relevant with the value position in assembling process, therefore can be calculated using Ordered Weighted arithmetic average Psychology physiological characteristic vector x of the son to individual of sample_i(i=1,2,3 ...) assembled, try to achieve its synthesized attribute value Z_i(w), by Z_iW () size is ranked up to scheme and preferentially, can preferably eliminate due to environment, society ground The individual difference that many factors such as position are caused.

In step s 103, the classification that wherein there is psychological pressure is known according to Decision-level fusion model Other result carries out whether benign secondary classification, and output has the secondary classification result of psychological pressure.

In the present embodiment, the Classification and Identification result that there is psychological pressure specially moderate psychology pressure Power and severe psychological pressure, the classification according to Decision-level fusion model to wherein there is psychological pressure Recognition result carries out whether benign secondary classification, and the secondary classification result that output has psychological pressure is specially：

The Classification and Identification result with moderate psychological pressure and severe psychological pressure is judged according to Decision-level fusion model Whether it is eustress, if eustress, then current class recognition result classifies as pressure-less state i.e. Health status, if not eustress, then current class recognition result is classified as and has the two of psychological pressure Subseries result.

Wherein, psychological pressure is regarded as positive i.e. eustress to a certain extent, can strengthen people Alertness and productivity, especially when wake-up degree is optimal level.However, this is that have certain limit , once exceeding this limit, a series of serious problems will be brought for individuality, or even also can result in straight Connect the symptom of threat to life.Step S102 can recognize that health, moderate to the preliminary classification of psychological pressure Three kinds of states of psychological pressure and severe psychological pressure, but, it is impossible to it is whether benign to psychological pressure to assess, because This this step alignment degree and severe psychological pressure state carry out secondary classification, and D-S evidence theory is based on by building Decision-level fusion model be used for secondary classification, its advantage is need not be accurate the physical relation between Multiple Information Sources Really understand, the characteristic processing and recognition methods for being suitable for variety classes information source can be respectively adopted, it is only necessary to The result of Classification and Identification is applied to Decision-level fusion model, the Decision-level fusion Model Independent of foundation in All kinds of specifying informations, with general applicability.

Specifically, according to based on Basic probability assignment function mass, being carried out not true in D-S evidence theory The characteristics of qualitative reasoning, fusion function is built, obtain final fusion results.Assuming that there is two classes in emerging system Target to be identified, three class local decisions processes, different information source represents different evidence bodies, is pressed with psychology The identification of power state is expressed as { Pr1, Pr2 }, wherein Pr1 as goal in research, then psychological pressure identification framework Psychological pressure state is indicated, Pr2 is indicated without psychological pressure state.Assuming that C is an identification space, entirely Body subset is 2C, then m：2C → [0,1], it is full in referred to as one basic probability assignment, as identification space The characteristic value of sufficient condition needs to meet according to the size allocation probability with psychological pressure correlation, the probability of appointment Condition：

In formula, m (A) represents the Basic Probability As-signment of each psychological characteristics data.(have for identification target A Whether pressure to be) belief function be expressed as Bel (A), be to recognize target trusting degree lower limit function, Belief function is shown below with the relation of Basic Probability As-signment：

The likelihood function of identification target A is expressed as Pls (A), and it to identification target A is the letter that has pressure state to be Appoint the upper limit function of degree, set up the target for thinking to oppose in space is recognized with A i.e. without psychological pressure state It is that the computational methods of Pls (A) are shown below on the basis of vacation；

The uncertainty of identification target A is made up of likelihood function Pls (A) and belief function Bel (A), that is, trust Target A is have the probability of pressure and trust the difference that A is genuine probability, is expressed as m (△) and is shown below：

M (△)=Pls (A)-Bel (A)

When there is multiple evidence bodies, the probability for recognizing target is assigned and pressed by multiple evidence bodies It is combined according to certain rule of combination, is exactly the main body of fusion process.Fusion is carried out to multiple evidence bodies to obtain The belief function of A must be shown below：

In formula, K represents that the conflict spectrum between evidence body, the i.e. tolerance to psychological pressure are inconsistent, raw Reason feature produces change, and psychological characteristics does not produce change, when K value closer to 1 when, evidence Conflict between body is bigger, repels completely between representing evidence body when K is equal to or more than 1, So the conflict spectrum value K between evidence body was calculated before fusion, only when the value of K is in (0,1) In the range of when, i.e., when psychology physiological feature shows homogeneous response to psychological pressure, just can be to correlation Evidence body merged.The computational methods of K are shown below：

Only two identification targets, that is, have psychological pressure and without psychological pressure in the identification space of the present embodiment, So likelihood function Pls (A) and belief function Bel (A) are identicals, uncertain probability is zero.So, Bel (A) just becomes the most important reference of psychological pressure state and judgement standard.To psychological pressure assessment result Decision-making should be according to following rule：

The target identification state belief function value of conclusive judgement is maximum in all target belief function values；

The target identification state belief function value of conclusive judgement meets Bel (F_i)>0.5, and it is at least other targets letter Appoint functional value 2 times.

In step S104, it is input into as statistical model using the secondary classification result, according to based on pressure system The Cylinder pressure quantization functions of system theoretical model, obtain individual mind pressure quantized value.

In the present embodiment, the pressure system theoretical model will be as shown in Fig. 2 Cylinder theoretical models will As pressure " liquid ", the height of liquid represents irritability to inherent and external environment condition irritability in cylinder Intensity, the hydraulic pressure that cross bar bears reflects individual current stress level, and the width of cylinder corresponds at individuality Manage the ability of pressure, the density of " liquid " reflect inside and out irritability closeness, chronic pressure The increase of " liquid " height will be caused in cylinder, so as to the pressure for causing cross bar to bear increases.Work as liquid Height when reach threshold level, individual may feel that obvious pressure, when height reach the limit of it is horizontal When, meeting major injury body and psychology function can induce an illness and even result in death.Different swashs Encourage the factor and be divided into the triggering factor and relief factor, the triggering factor raises " liquid " height, relief factor drop Low " liquid height ", therefore, the influence of the triggering factor can be just reduced by applying appropriate intervention means, plus The function of strong relief factor, so as to reach the purpose of release pressure.

According to above-mentioned Cylinder theoretical models, three dimensions and two dimensional surface, such as Fig. 3 are mapped that to It is shown, carry out mathematical modeling

F=P S

Wherein, P represents the weight of liquid, and S represents the area of bottom, and F represents the pressure that bottom is born.

If the length ' L ' of bottom, height ' H ', and liquid density ' ρ ', and weight acceleration ' g ' (time constant), then the function expression of the personal pressure evaluation model set up is as follows：

F (t)=P (t) S (t)=∫ ∫_δρgh(t)dxdy

Cylinder pressure quantization function F (t) is calculated from above formula to be specially：

Wherein, the ρ is the density of liquid, and L is the length of bottom, and h is the intensity of irritability, and h's takes Value scope is 1<h<H, t are the time.

Cylinder theoretical models by it is physiological, psychological, society and environment combined factors consider, By the technology of information fusion, the relation of research multi-source information characteristic vector and factor of a model, by constantly Optimum experimental is simultaneously corrected, and can finally obtain personality mentality Stress appraisal quantizating index.

The present embodiment, using multi-physiological-parameter characteristic value, combines mental scale characteristic value, by subjective and objective With reference to, positive psychological pressure has been excluded, and with reference to fuzzy theory, decision-making level's information fusion model pair Psychological pressure carries out multistage precise classification, has taken into full account environment adaptation, cognitive interaction and has independently evaluated to the heart The influencing mechanism of pressure is managed, the Cylinder quantization functions based on pressure system model is set up, so as to realize Graded quantitative assessment to psychological pressure.

Embodiment two

Fig. 4 shows the concrete structure block diagram of the psychological pressure apparatus for evaluating that the embodiment of the present invention two is provided, and is It is easy to explanation, illustrate only the part related to the embodiment of the present invention.In the present embodiment, psychology pressure Force estimation device includes

Data receipt unit 41, for collecting sample data, the sample data is specially including physiological characteristic The characteristic matrix that data, psychological characteristics data and individual essential information build；

In the present embodiment, the sample data is acquired by clinical or community family.The physiology Characteristic includes：Electrocardiosignal and its characteristic value and breath signal and its characteristic value, the electrocardiosignal and Its characteristic value includes being based on electrocardiographic wave feature, heart rate rhythm pattern feature and heart rate variability feature；Institute Stating breath signal and its characteristic value includes breath rhythm pattern feature, breathing statistical nature and respiratory waveform feature, Physiological data acquisition equipment includes but is not limited to the wearable device collection of textile electrode class.The psychological characteristics Data include：Autonomous Research advancement on measuring scale feature and social action evaluation and test scale feature, the autonomous Research advancement on measuring scale are special Levy complete including individual information, thinking ability, emotional health, personality；The social action evaluation and test scale is special Levy including environment adaptation, habits and customs and human communication.

First-level class unit 42, for respectively with FCM Algorithms and Ordered Weighted arithmetic average operator pair The physiological characteristic data, psychological characteristics data carry out entry evaluation, obtain respective Classification and Identification result.

In the present embodiment, the Classification and Identification result includes health status, moderate psychological pressure and the severe heart Reason pressure, wherein, the Classification and Identification result specially moderate psychological pressure that there is psychological pressure and Severe psychological pressure.Below illustrate in health status, moderate psychological pressure and severe psychological pressure be three Cluster centre, FCM Algorithms are a kind of very effective fuzzy clustering algorithms, specifically, hypothesis is treated The collection of psychological pressure status level of classifying is combined into：Collection is combined into finite data and gives birth to The set of reason characteristic and psychological characteristics data, element x is d dimensional vectors, searches out a fuzzy division square Battle array (u_ij)_c×nAnd c cluster centre point V={ v₁,v₂,...,v_cCause object function:

Meet:

Wherein m ∈ [1 ,+∞] are referred to as FUZZY WEIGHTED coefficient, u_ijReferred to as degree of membership, x_jRepresent that vector is under the jurisdiction of central point Degree, d (x_j, vi) and it is object function x_jWith the Euclidean distance of vi.

Because there are many factors in the formation of psychological pressure：Psychology, it is physiological, social, environment because Element etc., the influence power that these factors are formed to psychological pressure, development is applied varies with each individual, and possesses obvious Subjectivity and individual difference, exist only by the cluster result of FCM Algorithms acquisition and do not conform to a lot Reason situation, such as environmental difference, social status difference, health difference are not to the patience of psychological pressure With, therefore by building Induced ordered weighted averaging operator, reduce as far as possible by individual difference formed it is unreasonable Situation.

In addition, the Ordered Weighted arithmetic average operator OWA of psychological characteristics data may be defined as：

If function OWA:Rⁿ→ R, if:

Wherein w=(w₁,w₂,...,w_n)^TIt is the associated weights of and function OWA Vector, wherein, correlation analysis are carried out with clinical report result to the psychological characteristics data chosen by clinic, Different weights are assigned to the psychology physiological value chosen according to significance, is met：And b_jIt is data group (a₁,a₂,...,a_n) in the big element of jth, R is real number Collection.

The advantage of Ordered Weighted arithmetic average operator is:To psychology and physiological characteristic magnitude data (a₁,a₂,...,a_n) Re-started by order from big to small and sort and assembled by weighting, due to value a_iWith weight w_jIt is no to appoint What is contacted, only relevant with the value position in assembling process, therefore can be calculated using Ordered Weighted arithmetic average Psychology physiological characteristic vector x of the son to individual of sample_i(i=1,2,3 ...) assembled, try to achieve its synthesized attribute value Z_i(w), by Z_iW () size is ranked up to scheme and preferentially, can preferably eliminate due to environment, society ground The individual difference that many factors such as position are caused.

Secondary classification unit 43, for according to Decision-level fusion model to described in wherein there is psychological pressure points Class recognition result carries out whether benign secondary classification, and output has the secondary classification result of psychological pressure.

In the present embodiment, the Classification and Identification result that there is psychological pressure specially moderate psychology pressure Power and severe psychological pressure, the classification according to Decision-level fusion model to wherein there is psychological pressure Recognition result carries out whether benign secondary classification, and the secondary classification result that output has psychological pressure is specially：

The Classification and Identification result with moderate psychological pressure and severe psychological pressure is judged according to Decision-level fusion model Whether it is eustress, if eustress, then current class recognition result classifies as pressure-less state i.e. Health status, if not eustress, then current class recognition result is classified as and has the two of psychological pressure Subseries result.

Wherein, psychological pressure is regarded as positive i.e. eustress to a certain extent, can strengthen people Alertness and productivity, especially when wake-up degree is optimal level.However, this is that have certain limit , once exceeding this limit, a series of serious problems will be brought for individuality, or even also can result in straight Connect the symptom of threat to life.Step S102 can recognize that health, moderate to the preliminary classification of psychological pressure Three kinds of states of psychological pressure and severe psychological pressure, but, it is impossible to it is whether benign to psychological pressure to assess, because This this step alignment degree and severe psychological pressure state carry out secondary classification, and D-S evidence theory is based on by building Decision-level fusion model be used for secondary classification, its advantage is need not be accurate the physical relation between Multiple Information Sources Really understand, the characteristic processing and recognition methods for being suitable for variety classes information source can be respectively adopted, it is only necessary to The result of Classification and Identification is applied to Decision-level fusion model, the Decision-level fusion Model Independent of foundation in All kinds of specifying informations, with general applicability.

Specifically, according to based on Basic probability assignment function mass, being carried out not true in D-S evidence theory The characteristics of qualitative reasoning, fusion function is built, obtain final fusion results.Assuming that there is two classes in emerging system Target to be identified, three class local decisions processes, different information source represents different evidence bodies, is pressed with psychology The identification of power state is expressed as { Pr1, Pr2 }, wherein Pr1 as goal in research, then psychological pressure identification framework Psychological pressure state is indicated, Pr2 is indicated without psychological pressure state.Assuming that C is an identification space, entirely Body subset is 2C, then m：2C → [0,1], it is full in referred to as one basic probability assignment, as identification space The characteristic value of sufficient condition needs to meet according to the size allocation probability with psychological pressure correlation, the probability of appointment Condition：

In formula, m (A) represents the Basic Probability As-signment of each psychological characteristics data.(have for identification target A Whether pressure to be) belief function be expressed as Bel (A), be to recognize target trusting degree lower limit function, Belief function is shown below with the relation of Basic Probability As-signment：

The likelihood function of identification target A is expressed as Pls (A), and it to identification target A is the letter that has pressure state to be Appoint the upper limit function of degree, set up the target for thinking to oppose in space is recognized with A i.e. without psychological pressure state It is that the computational methods of Pls (A) are shown below on the basis of vacation；

The uncertainty of identification target A is made up of likelihood function Pls (A) and belief function Bel (A), that is, trust Target A is have the probability of pressure and trust the difference that A is genuine probability, is expressed as m (△) and is shown below：

M (△)=Pls (A)-Bel (A)

When there is multiple evidence bodies, the probability for recognizing target is assigned and pressed by multiple evidence bodies It is combined according to certain rule of combination, is exactly the main body of fusion process.Fusion is carried out to multiple evidence bodies to obtain The belief function of A must be shown below：

In formula, K represents that the conflict spectrum between evidence body, the i.e. tolerance to psychological pressure are inconsistent, raw Reason feature produces change, and psychological characteristics does not produce change, when K value closer to 1 when, evidence Conflict between body is bigger, repels completely between representing evidence body when K is equal to or more than 1, So the conflict spectrum value K between evidence body was calculated before fusion, only when the value of K is in (0,1) In the range of when, i.e., when psychology physiological feature shows homogeneous response to psychological pressure, just can be to correlation Evidence body merged.The computational methods of K are shown below：

Only two identification targets, that is, have psychological pressure and without psychological pressure in the identification space of the present embodiment, So likelihood function Pls (A) and belief function Bel (A) are identicals, uncertain probability is zero.So, Bel (A) just becomes the most important reference of psychological pressure state and judgement standard.To psychological pressure assessment result Decision-making should be according to following rule：

The target identification state belief function value of conclusive judgement is maximum in all target belief function values；

The target identification state belief function value of conclusive judgement meets Bel (F_i)>0.5, and it is at least other targets 2 times of belief function value.

Pressure quantifying unit 44, for being input into as statistical model using the secondary classification result, according to being based on The Cylinder pressure quantization functions of pressure system theoretical model, obtain individual mind pressure quantized value.

In the present embodiment, the pressure system theoretical model will be as shown in Fig. 2 Cylinder theoretical models will As pressure " liquid ", the height of liquid represents irritability to inherent and external environment condition irritability in cylinder Intensity, the hydraulic pressure that cross bar bears reflects individual current stress level, and the width of cylinder corresponds at individuality Manage the ability of pressure, the density of " liquid " reflect inside and out irritability closeness, chronic pressure The increase of " liquid " height will be caused in cylinder, so as to the pressure for causing cross bar to bear increases.Work as liquid Height when reach threshold level, individual may feel that obvious pressure, when height reach the limit of it is horizontal When, meeting major injury body and psychology function can induce an illness and even result in death.Different swashs Encourage the factor and be divided into the triggering factor and relief factor, the triggering factor raises " liquid " height, relief factor drop Low " liquid height ", therefore, the influence of the triggering factor can be just reduced by applying appropriate intervention means, plus The function of strong relief factor, so as to reach the purpose of release pressure.

According to above-mentioned Cylinder theoretical models, three dimensions and two dimensional surface are mapped that to, such as schemed Shown in 3b, mathematical modeling is carried out

F=P S

Wherein, P represents the weight of liquid, and S represents the area of bottom, and F represents the pressure that bottom is born.

If the length ' L ' of bottom, height ' H ', and liquid density ' ρ ', and weight acceleration ' g ' (time constant), then the function expression of the personal pressure evaluation model set up is as follows：

F (t)=P (t) S (t)=∫ ∫_δρgh(t)dxdy

Cylinder pressure quantization function F (t) is calculated from above formula to be specially：

Wherein, the ρ is the density of liquid, and L is the length of bottom, and h is the intensity of irritability, and h's takes Value scope is 1<h<H, t are the time.

Cylinder theoretical models by it is physiological, psychological, society and environment combined factors consider, By the technology of information fusion, the relation of research multi-source information characteristic vector and factor of a model, by constantly Optimum experimental is simultaneously corrected, and can finally obtain personality mentality Stress appraisal quantizating index.

Further, the Classification and Identification result includes health status, moderate psychological pressure and severe psychology pressure Power, the Classification and Identification result specially moderate psychological pressure that there is psychological pressure and severe psychology pressure Power, the secondary classification unit 43 specifically for being judged with moderate psychological pressure according to Decision-level fusion model and Whether the Classification and Identification result of severe psychological pressure is eustress, if eustress, then current class Recognition result classifies as pressure-less state i.e. health status, if not eustress, then current class identification Result classifies as the secondary classification result that there is psychological pressure.

Further, Cylinder pressure quantization function F (t) is specially：

Wherein, the ρ is the density of liquid, is also irritability classification or pressure Producing reason, and L is bottom Length, be also individual maximum bearing capacity, h is the intensity of irritability, is also the intensity of pressure, the value of h Scope is 1<h<H, t are the time, namely pressure perdurabgility.

The present embodiment, using multi-physiological-parameter characteristic value, combines mental scale characteristic value, by subjective and objective With reference to, positive psychological pressure has been excluded, and with reference to fuzzy theory, decision-making level's information fusion model pair Psychological pressure carries out multistage precise classification, has taken into full account environment adaptation, cognitive interaction and has independently evaluated to the heart The influencing mechanism of pressure is managed, the Cylinder quantization functions based on pressure system model is set up, so as to realize Graded quantitative assessment to psychological pressure.

Psychological pressure apparatus for evaluating provided in an embodiment of the present invention can be applied in foregoing corresponding embodiment of the method In one, details will not be repeated here referring to the description of above-described embodiment one.

It is worth noting that, in said apparatus embodiment, included unit is according to function logic Divided, but be not limited to above-mentioned division, as long as corresponding function can be realized；Separately Outward, the specific name of each functional unit is also only to facilitate mutually differentiation, is not intended to limit the invention Protection domain.

Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed All it is the difference with other embodiment, identical similar part is mutually referring to i.e. between each embodiment Can.

It should be understood by those skilled in the art that, the embodiment of the embodiment of the present application can be provided as method, control Device or computer program product.Therefore, the embodiment of the present application can using complete hardware embodiment, completely it is soft The form of the embodiment in terms of part embodiment or combination software and hardware.And, the embodiment of the present application can be adopted Wherein include used in one or more computer usable program code computer-usable storage medium (including But be not limited to magnetic disk storage, CD-ROM, optical memory etc.) on implement computer program product shape Formula.

The embodiment of the present application is with reference to the method according to the embodiment of the present application, terminal device (system) and calculates The flow chart and/or block diagram of machine program product is described.It should be understood that can be realized by computer program instructions In each flow and/or square frame and flow chart and/or block diagram in flow chart and/or block diagram The combination of flow and/or square frame.These computer program instructions to all-purpose computer, dedicated computing can be provided The processor of machine, Embedded Processor or other programmable data processing terminal equipments to produce a machine, So that produced by the instruction of computer or the computing device of other programmable data processing terminal equipments being used for Realize what is specified in one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames The controller of function.

These computer program instructions may be alternatively stored in can guide computer or other programmable data processing terminals In the computer-readable memory that equipment works in a specific way so that storage is in the computer-readable memory In instruction produce include the manufacture of instruction control unit, the instruction control unit realization in one flow of flow chart Or the function of being specified in multiple one square frame of flow and/or block diagram or multiple square frames.

These computer program instructions can also be loaded into computer or other programmable data processing terminal equipments On so that series of operation steps is performed on computer or other programmable terminal equipments to produce computer The treatment of realization, so as to the instruction performed on computer or other programmable terminal equipments is provided for realizing The function of being specified in one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames The step of.

Although having been described for the preferred embodiment of the embodiment of the present application, those skilled in the art once obtain Cicada basic creative concept, then can make other change and modification to these embodiments.So, it is appended Claim be intended to be construed to include preferred embodiment and fall into the embodiment of the present application scope have altered and Modification.

Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms are only Only be used for by an entity or operation with another entity or operate make a distinction, and not necessarily require or Imply between these entities or operation there is any this actual relation or order.And, term " bag Include ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that including A series of process of key elements, method, article or terminal device not only include those key elements, but also including Other key elements being not expressly set out, or also include being set for this process, method, article or terminal Standby intrinsic key element.In the absence of more restrictions, limited by sentence "including a ..." Key element, it is not excluded that also exist in the process including the key element, method, article or terminal device another Outer identical element.

Above to a kind of psychological pressure appraisal procedure provided herein and device, it is described in detail, Specific case used herein is set forth to the principle and implementation method of the application, above example Illustrate that being only intended to help understands the present processes and its core concept；Simultaneously for the general of this area Technical staff, according to the thought of the application, has change in specific embodiments and applications Place, in sum, this specification content should not be construed as the limitation to the application.

Claims (8)

1. a kind of psychological pressure appraisal procedure, it is characterised in that methods described includes：

Collecting sample data, the sample data be specially including physiological characteristic data, psychological characteristics data with And individual essential information, construction feature data matrix；

Respectively with FCM Algorithms and Ordered Weighted arithmetic average operator to the physiological characteristic data, the heart Reason characteristic carries out entry evaluation, obtains respective Classification and Identification result；

According to Decision-level fusion model the Classification and Identification result that wherein there is psychological pressure is carried out it is benign with There is the secondary classification result of psychological pressure in no secondary classification, output；

It is input into as statistical model using the secondary classification result, according to based on pressure system theoretical model Cylinder pressure quantization functions, obtain individual mind pressure quantized value.

2. psychological pressure appraisal procedure according to claim 1, it is characterised in that the physiological characteristic number According to including：Electrocardiosignal and its characteristic value and breath signal and its characteristic value, the electrocardiosignal and its feature Value includes being based on electrocardiographic wave feature, heart rate rhythm pattern feature and heart rate variability feature；The breathing Signal and its characteristic value include breath rhythm pattern feature, breathing statistical nature and respiratory waveform feature.

3. psychological pressure appraisal procedure according to claim 1, it is characterised in that the psychological characteristics number According to including：Autonomous Research advancement on measuring scale feature and social action evaluation and test scale feature, the autonomous Research advancement on measuring scale feature It is complete including individual information, thinking ability, emotional health, personality；Scale feature is evaluated and tested in the social action Including environment adaptation, habits and customs and human communication.

4. psychological pressure appraisal procedure according to claim 1, it is characterised in that the Classification and Identification knot Fruit includes health status, moderate psychological pressure and severe psychological pressure, there is psychological pressure described point Class recognition result is specially moderate psychological pressure and severe psychological pressure, described according to Decision-level fusion model pair Wherein there is the Classification and Identification result of psychological pressure carries out whether benign secondary classification, and output has the heart The secondary classification result for managing pressure is specially：

The Classification and Identification result with moderate psychological pressure and severe psychological pressure is judged according to Decision-level fusion model Whether it is eustress, if eustress, then current class recognition result classifies as pressure-less state i.e. Health status, if not eustress, then current class recognition result is classified as and has the two of psychological pressure Subseries result.

5. psychological pressure appraisal procedure according to claim 1, it is characterised in that the Cylinder Pressure quantization function F (t) is specially：

$F\left(t\right)=\frac{\mathrm{\&rho;}L}{2}{h}^2\left(t\right)$

Wherein, the ρ is the density of liquid, is also irritability classification or pressure Producing reason, and L is bottom Length, be also individual maximum bearing capacity, h is the intensity of irritability, is also the intensity of pressure, the value of h Scope is 1<h<H, t are the time, namely pressure perdurabgility.

6. a kind of psychological pressure apparatus for evaluating, it is characterised in that described device includes：Including：

Data receipt unit, for collecting sample data, the sample data is specially including physiological characteristic number According to, psychological characteristics data and individual essential information, construction feature data matrix；

First-level class unit, for respectively with FCM Algorithms and Ordered Weighted arithmetic average operator to institute Stating physiological characteristic data, psychological characteristics data carries out entry evaluation, obtains respective Classification and Identification result；

Secondary classification unit, for the classification according to Decision-level fusion model to wherein there is psychological pressure Recognition result carries out whether benign secondary classification, and output has the secondary classification result of psychological pressure；

Pressure quantifying unit, for being input into as statistical model using the secondary classification result, according to based on pressure The Cylinder pressure quantization functions of Force system theoretical model, obtain individual mind pressure quantized value.

7. psychological pressure apparatus for evaluating according to claim 6, it is characterised in that the Classification and Identification knot Fruit includes health status, moderate psychological pressure and severe psychological pressure, there is psychological pressure described point Class recognition result is specially moderate psychological pressure and severe psychological pressure, the secondary classification unit specifically for According to Decision-level fusion model judge with the Classification and Identification result of moderate psychological pressure and severe psychological pressure whether It is eustress, if eustress, then current class recognition result classifies as pressure-less state i.e. health State, if not eustress, then current class recognition result is classified as and has secondary point of psychological pressure Class result.

8. psychological pressure apparatus for evaluating according to claim 6, it is characterised in that the Cylinder Pressure quantization function F (t) is specially：

$F\left(t\right)=\frac{\mathrm{\&rho;}L}{2}{h}^2\left(t\right)$

Wherein, the ρ is the density of liquid, is also irritability classification or pressure Producing reason, and L is bottom Length, be also individual maximum bearing capacity, h is the intensity of irritability, is also the intensity of pressure, the value of h Scope is 1<h<H, t are the time, namely pressure perdurabgility.