WO2001054043A1 - Dispositif peripherique d'ordinateur, pour la reconnaissance automatique du stress et systeme pour determiner le stress au moyen dudit dispositif - Google Patents

Dispositif peripherique d'ordinateur, pour la reconnaissance automatique du stress et systeme pour determiner le stress au moyen dudit dispositif Download PDF

Info

Publication number
WO2001054043A1
WO2001054043A1 PCT/KR2000/001079 KR0001079W WO0154043A1 WO 2001054043 A1 WO2001054043 A1 WO 2001054043A1 KR 0001079 W KR0001079 W KR 0001079W WO 0154043 A1 WO0154043 A1 WO 0154043A1
Authority
WO
WIPO (PCT)
Prior art keywords
stress
signal
computer
measuring section
body information
Prior art date
Application number
PCT/KR2000/001079
Other languages
English (en)
Inventor
Hyun Kim
Original Assignee
Hyun Kim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyun Kim filed Critical Hyun Kim
Publication of WO2001054043A1 publication Critical patent/WO2001054043A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/165—Evaluating the state of mind, e.g. depression, anxiety
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6897—Computer input devices, e.g. mice or keyboards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03543—Mice or pucks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4519—Muscles

Definitions

  • This invention relates to a peripheral device of a computer for automatically recognizing stress of the computer user and a stress determining system, and in particular to a peripheral device for automatically recognizing stress and a stress determining system which determines the pulsation, temperature, skin conduction rate and/or muscle conduction rate of the user through a computer peripheral device such as amouse, and inputs this information into the computer and determines information on respective measurements along with determining the amount of stress and then displaying this information on the monitor.
  • stress refers to all irritations which break the balance of the human body, and which involve physical and physiological alterations.
  • the lower part of thebrain thalamus which controls the homeostasis of the body recognizes stress.
  • the lower part of the thalamus then immediately stimulates the sympathetic nerve and secretion of the stress hormone(catecholamine) is induced which causes contraction of blood vessels, dil tion of the pupil, increase in heartbeat , increase in respiration, temporary halt in stomach activities in the body.
  • the lower part of the thalamus stimulates pituitary body which secretes adrenal cortex hormones causing the secretion of the cortisol hormone which increases the generation of dextrose in the liver.
  • the adrenaline elevates the stimulation level . All these stress related chemical substances stimulate the nervous system, heart vessels and muscle organs.
  • the foregoing responses from temporary stress are natural, but if stress persists, especially if it is mental stress, it can cause fatal damage to the body.
  • the execution or control program which is an application program for resolving stress is set up on the computer through a program transmission medium or a remote control device, and the data program prepared at a website is downloaded through a computer network and is made into a complete natural treatment program, and the execution and control program is stored in the execution and control program storage section(210) within the main body(200), the data program is stored in the data program storage section(220), the stress recognition program is stored in the stress recognition program storage section(230) , andon computer peripheral devices(300) such as amouse or keyboard which the computer user uses during work is placed a device through which stress may be recognized through stress recognizing sensor(320) and sensor converter(310) anda stress relievingprogram is executed according to the stress amount of the user, and thereby when a stress recognition signal is inputted through the peripheral device(300) such as a mouse or keyboard, a signal from the microprocessor is converted into adequate data and control signal through the converter(ll ⁇ ) of
  • the speaker and monitor may be devices already known, and the spraying device, for example, may uti 1 ize Patent Application 00-27636 dated May 23rd 2000 of the present inventor.
  • stress recognition sensors(320) that are able to sense the stress of the user are adhered on to peripheral devices(300) which the user uses during work, such as a keyboard or mouse, and the state of the body such as pulse rate, body temperature or skin conductivity which are recognized according to the amount of stress are conveyed to the computer or microprocessor through the sensor converter(310) and the stress relieving program is made to operate, and thereby the computer user may handle stress from computer use and in turn elevate the efficiency of work.
  • the object of the present invention is to provide a peripheral device of a computer(especially a mouse) for automatically recognizing stress which is used in the foregoing stress relieving computer system or a computer automatically recognizing the present stress index of the user and warning the user, that is related to a system inwhich during computer usage whilemaintaining contact with the mouse, body temperature, pulse, skin conductivity and/or muscle conductivity is determined directly from the mouse and respective numerical values of the information is sent to the CPU, which is built-in in the mouse, wherein the information is measured, determined and memorized, and the measured data is finally received into the computer main body and respective information alongwith a synthetic interpretationmade to show the amount of stress or fatigue is displayed on the monitor.
  • the present invention senses information of the body namely body temperature, pulse rate, skin conductivity, along with perspiration amount, muscle conductivity, blood flow, bloodpressure, P02 while thehand is in contact with the mouse during computer use through a sensor mounted on the surface of the mouse, and displays this information on the monitor and at the same time interprets the body related information to check the amount of stress or fatigue.
  • the first object of the present invention is to measure information on the body and check the amount of stress or fatigue.
  • the present system which is designed to allow easy and convenient measurement while ordinary people are using the computer, is able to obtain various information on the body and determine synthetic data, that is, whether or not stress is existent through this information.
  • the second object of the present invention is to basically check the amount of stress or fatigue from underneath the functions of peripheral devices such as a mouse. While businessmen and students who spend numerous hours in front of the computer are using the computer they may check the state of their bodies at anytime.
  • Another object of the present invention is to provide a computer mouse which may measure the utmost trustworthy stress measurements by adding a simple a device.
  • the stress measurement system using a computer which is one of the aspects of the present invention comprises a computer peripheral device(300) including a body information measuring section which measures the body information of the computer user, a means(400) for signal processingsaidmeasuredbody information, andameans(800) for transmitting said signal processed body information signal to the main body of the computer; and a computer main body(200) provided with a stress recognition program which computes body information alteration coefficients from said transmitted body information signal and assigns weightedvalues to each coefficient and calculates to compute the stress index.
  • a computer peripheral device(300) including a body information measuring section which measures the body information of the computer user, a means(400) for signal processingsaidmeasuredbody information, andameans(800) for transmitting said signal processed body information signal to the main body of the computer; and a computer main body(200) provided with a stress recognition program which computes body information alteration coefficients from said transmitted body information signal and assigns weightedvalues to each coefficient and calculates to compute the stress index.
  • said body information measuring section includes at least a skin conductivity measuring section and a pulse measuring section, and more preferably, said body information measuring section further includes a body temperature measuring section and a muscle conductivity measuring section.
  • said signal processing means preferably includes a converting means(420) for A/D conversion of the detected body signal, a means(430) for temporarily storing the detected body signal information, and a controller(410), and said stress recognition program more preferably includes a stress index indicator which allows display of the computed stress index.
  • said computer main body includes a stress recognition program processor(260) in addition to a windows program processor(250) for processinggeneral computer in/outputs, andmaybe further providedwith a device driver(240) which switches the input data which is inputted from the peripheral device to the stress recognitionprogram if the inputteddata is body information.
  • a stress recognition program processor(260) in addition to a windows program processor(250) for processinggeneral computer in/outputs, andmaybe further providedwith a device driver(240) which switches the input data which is inputted from the peripheral device to the stress recognitionprogram if the inputteddata is body information.
  • the computer peripheral device which is another aspect of the present invention comprises a computer peripheral device including a body information measuring section which measures the body information of the computer user, a means(400) for signal processing said measured body information, and a means(800) for transmitting said signal processed body information signal to the main body of the computer, said body information measuring section including a skin conductivity measuring section(500;500') and a pulse measuring section(700;700'), said skin conductivity measuring section including a first electrode(501) for authorizing a testing signal to the skin, a second electrode(502) for sensing the body information signal from the skin and output(570;570') for outputting the sensed signal from the second electrode to the signal processingmeans(400) , said pulse measuring section including a light emitter and receiver(710), an amplifier for amplifying and outputting the signal detected from said light receiver and a comparator(790) for comparing saidamplified signal withreferencevoltage(Vref) and digitalizing and counting the signal.
  • a body information measuring section which measures the
  • said peripheral device is a device having a pointing means such as a mouse.
  • Figure 1 is a block diagram showing a stress recognition scent generating computer system related to the present invention
  • Figure 2 is a structural diagram of an automatic stress recognitionmouse according to a preferred embodiment of the present invention.
  • Figure 3 is a block circuit diagram of an automatic stress recognition mouse according to a preferred embodiment of the present invention
  • Figure 4 is a detailed circuit diagram of the signal processor and transmitter of figure 3
  • FIG. 5a to figure 5d are detailed circuit diagrams of the skin conductivity/muscle conductivity measuring section of figure 3,
  • Figure 5e is an equivalent circuit diagram of figures 5a to 5d
  • Figure 6 is a detailed circuit diagram of the body temperature measuring section of figure 3
  • FIG. 7a to figure 7d are detailed circuit diagrams of the pulse measuring section of figure 3.
  • Figure 8 is a structural diagram of the stress recognition program of figure 1,
  • Figure 9 is example diagram of the computer monitor displaying the stress information determined by the present invention.
  • Figure 10 to figure 12 are circuit diagrams showing another example of the stress measuring mouse related to the present invention wherein, figure 10 is a pointing function and control section of a conventional mouse, figure 11 is a skin conductivity measuring section, and figure 12 is a pulse measuring section,
  • Figure 13 is a wave diagram of the comparator input/output signal
  • Figure 14 is a schematic diagram showing the processing of the mouse signal
  • Figures 15a and 15b are structural diagrams of the mouse signal data in figure 14, wherein figure 15a is an example of the data showing the mouse point signal, and figure 15b is an example of the data showing the body measurement signal, Figure 16 is a flow chart showing the mouse operation of the preferred embodiment of figure 12 to figure 14,
  • Figure 17 is a subroutine diagram showing the interpretation and transmission action for body information of figure 16,
  • Figure 18 is a block diagram of the total experimental test of the stress measurement mouse according to the present invention
  • Figure 19 is a computer screen showing an example of the calculation test stimulation program used in the experiment of figure 18,
  • Figures 20a and 20b are flow charts respectively showingprogress process of the calculation test experiment and CPT experiment, Figure 21 depicts the physiological signal collected from an experiment ,
  • Figure 22a and 22b are examples of the question sheets used in figures 20a and 20b, and respectively are examples of subjective evaluation sheets of mental stress and physical stress,
  • Figure 23a and 23b are examples of heartbeat number and GSR analysis program, respectively.
  • Figure 24a to figure 24c show the alterations in heartbeat number, GSR and skin temperature according to time in the calculation and CPT tests.
  • 100 output 10 converter 120 monitor 130 : speaker 140 spraying device 150 : tactual stimulation device 200 computer main body 210 execution and control program storage 220 data program storage 230 stress recognition program storage 231 body signal alteration coefficient computing section 236 calculator 237 : stress index indicator 240 device driver 250 : window program processor 260 stress recognition program processor 300 computer peripheral devices 310 : sensor converter 320 stress recognition sensor 330 X-Y axis direction movement detector 340 switcher section 350 Z-axis direction movement detector 360 operation indicator 370 : transmitter 400 : signal processor 410 : controller
  • D/A converter 520 timer 530, 530' •' first amplification section
  • first filter 740 second filter
  • trigger circuit 770 third amplification section
  • warning section 790 comparator 800 : transmitter
  • FIGS. 1 and figure 3 are structural diagrams of an automatic stress recognitionmouse according to onepreferred embodiment of thepresent invention.
  • a sensor which is able to check various body information on respective portions of the body when the mouse(320) is held is installed.
  • a pulse measuring sensor(322) for the portion where the end of the thumb contacts a body temperature sensor(323) for the portion where the middle of the palm contacts, and to measure skin conductivity and/or muscle conductivity of the user
  • a skin conductivity/muscle conductivity measurement sensor(321) comprising a first and second electrode is installed where the end of the index finger or the middle finger(or the ring finger) contacts to click the key of the mouse.
  • FIG. 3 is a block circuit diagram of the automatic stress recognizing mouse according to one preferred embodiment of the present invention.
  • the electric signal from the pulse measuring section(700), body temperature measuring section (600) and skin conductivity/muscle conductivity measuring section (500) respectively connected to the pulse measurement sensor, body measurement sensor and skin conductivity/musc1e conducti itymeasurement sensor of said mouse is inputted into A/D converter(420) of the signal processor(400) and converted to a digital signal and is appropriately processed at the signal process and controller(410), and then is inputted into the microprocessor of the computer main body through the transmitter( ⁇ OO), and is outputted on the monitor and thereby the present state of stress is informed to the user . Therefore, taking a rest is recommended to the user or an appropriate screen or sound or scent is generated or the touching sensation of the user may be stimulated to relieve stress and thereby ultimately reducing stress.
  • the output of said A/D converter(420) is temporarily stored in the EEPR0M(430) and is allowed to be reused when needed or after power fai lure. Also, among the outputs of said pulse measuring section(700) the timer value(described later) which does not digital conversion is transmitted directly to the signal process of controller(410) and the terminal(INTO) of the control chip(ICl)(refer to figure 4).
  • Figure 4 is a detailed circuit diagram of the signal processor(400) and transmitter(800) of figure 3.
  • the measured outputs of pulse measuring section(700) and body temperature measuring section(600) and the output of the skin conductivity/muscle conductivity measuring section(500), to be described later, is converted into a digital signal which the controller(410) is able to handle through an A/D converter(for example, MAX186(AD1) is used)(420), and the converted digital signal is inputted through the first input/output terminaKPl.O to PI.7) to the signal process and controller(for example, 89C52QC1) is used) and is signal processed, and then is transmitted to the computer main body through the transmission terminal (TXD)(801) by a transmitter(for example, MAX232C (Ul) is used)(80).
  • TXD transmission terminal
  • the control signal from the computer main body is inputted to said processor(ICl) through said reception terminal(RXD)(802) and via said transmitter(800).
  • the EEPR0M(for example, 93C46(U2) is used) of the temporary storage(430) the digital data of the A/D converter is temporarily stored, and this for the reused thereof by the controller(410) when wanting to use past data or during power failure.
  • the descriptions regarding the accompanying clock signal generator(Yl) and reset signal generator(Ul) of said processor, and the circuit elements(Cl-C10,Rl) which are used accompanying said respective chips and authorized voltage is omitted.
  • Figure 5a to figure 5d are detailed circuit diagrams of the skin conductivity/muscle conductivity measuring section(500) of figure 3.
  • the second input/output terminal(PO.O to P0.7) of the control processor(ICl) of said controller(410) is connected to the input terminals of a Darlington driver(for example, ULN2803(U3) is used) which serves as the timer(520), and the output terminals of said chip are connected to relay terminals RYl toRY7, for example, tomeasure skin conductivityevery five seconds the relays(RLY_l to RLY_7) are switched every five seconds. Between each output terminal of said Darlington driver and the relays diodes(Dl-D7) are connected in parallel connections for stable control.
  • a Darlington driver for example, ULN2803(U3) is used
  • the third input/output terminals(P0.0 toP0.7) of saidcontrol processor(ICl) are connected to the input terminals of the D/A converter(for example, DAC0808(DA1) is used) through the parallel connection array resistor(ARl), and the digital signal outputted is converted to, for example, a sine wave analog signal by the D/A converter(510), and then is authorized to the second and third relays (RLY_2 and RLY_3)(refer to figure 5b) as a testing signal.
  • the output analog signal of said D/A converter(510) is amplified by the first and second amplification sections(530, 540), and is authorized after being adjusted to the suitable operation bias voltage by the bias(550).
  • the first and second amplification sections(530, 540) may be embodied using the known amplification circuit which uses the operational amplifiers(0Pl, 0P2), resistors and capacitor elements(R3-R5, C12-C14), and the bias section (550) may also be embodied using the known bias resistor(R6, R7) , and therefore the detai led description thereof is omitted.
  • the bias resistor is preferably selected such that the operational bias voltage is 1.2V.
  • the outputted analog signal(Vout) is authorized to the input(C0M_2)of the first and second relay(RLY_2, RLY_3) , and the output(N0_2) of the said second relay is again connected to the input(C0M L) and the first electrode(501) of the seventh relay(RLY_7), and the output(C0M_2) of said third relay is again connected to the input(N0_1) and the second electrode(502) of the sixth relay(RLY_6).
  • the first and second electrodes(501, 502) are connected to the first and second input terminals(C0M_l, C0M_2) of the first relay(RLY_l) , the first and second output terminals(N0_l, N0_2) corresponding to each input terminal is connected to the input(D, E) of the muscle conductivity signal output(560). Also, said first and second electrodes(501, 502) are respectively connected to the input terminal(C0M_1) of the fourth and fifth relay(RLY_4, RLY_5) , and the output(N0_1) of said fourth relays and the inverted output(N.C. ) of the fifth relay are connected to the inputs(F, G) of the skin conductivity signal output(570).
  • the muscle conductivity signal output(560) is depicted in figure 5c, it is comprised of an amplification section(R8-R18, C15-18, 0P3-0P5), filter section(R19-R24, C19-C26, 0P6-0P7) and amplification section(R26-R28, C27-C28), and the final detected signal is connected to the A/D converter(ADl) through the terminal(MUSCLE)(503).
  • the skin conductivity signal output(570) is depicted in figure 5d, at the inputs(F, G), the current(il, - i2) which flows in the first and second electrodes respectively flows, and at the contact point the signal which is the difference in the two currentsGl- i2) is inputted.
  • Said input signal is inputted into abuffer(580) comprised of adiode limiter(D9, D10), potential resistor(R29, R30) andvoltage fol lower(0P9), and the buffer again is connected to the amplifier circuit(R31-R33, C91, 0P10).
  • the amplified final detection signal is connected to the A/D converter through the terminal(SKIN)(504).
  • a capacitor is not necessary at the RC parallel circuit(R33, C91) where there is feedback from said amplifier circuit, but it is preferable for stopping high frequency noise and oscillation in the RC parallel configuration.
  • Figure 5e depicts the equivalent circuits of said figures 5b to 5d. Referring to figure 5e, the operation of said skin conductivity/muscle conductivity measuring section(500) is described. For testing the analog signal inputted from the D/A converter(510) is amplified and bias adjusted(530-550), the amplified and adjusted signal(Vout) is authorized to the first or second electrode(501,502) according to whether or not it has been switched at the second and third relays(RLY_2, RLY_3).
  • the current from each electrode is authorized only to the skin conductivity signal output(570) through the fourth and fifth relays(RLY_4, RLY_5) in case the first relay (RLY_1) is open, and the difference(il-i2) of the current signal measured from the two electrodes is amplified and is authorized to the A/D converter(420) through the skin conductivity measurement terminal(504) , and in case the first relay(RLY_l) is on and the fourth and fifth relays(RLY_4, RLY_5) are off, the signal measured from the two electrodes is authorized only to the muscle conductivity signal output(560), and is amplified and filtered and authorized to the A/D converter(420) through the muscle conductivity measurement terminal(503) .
  • the amplified and bias adjusted signal is inputted into the second relay chip (RLY_2) , and the output of said relay chip is again inputted into the seventh relay chip(RLY_7), and said second and seventh relay chips intermittently switches the inputted analog signal according to the switching signal of the second relay terminal(RL2) and seventh relay terminal(RL7), and detects the resistance signal of the first electrode.
  • said converted analog signal is amplified and bias adjusted, it is also inputted into the third relay chip(RLY_3), and the output of said third relay chip is again inputted into the sixth relay chip(RLY_6), and said third and sixth relay chips intermittently switches the inputted analog signal according to the switching signal of the third relay terminal(RL3) and sixth relay terminal(RL6), and detects the resistance signal of the second electrode.
  • the detected signal of said first electrode and second electrode is bridged by the first relay chip which operates according to the first relay, the detected signal of said first electrode and second electrode is connected to the fifth and fourth relay chips which are operated according to the fifth and fourth relayelectrode signal , and therefore at the contact point of where the output terminal(N.C.) of said fifth relay chip and the output terminal(N0_1) of said fourth relay chip connect , the difference signal of said first electrode and secondelectrode is authorized.
  • Said difference signal is connected to another amplifier through the buffer, and the signal amplified by said amplifier detects the characteristics of skin conductivity and is inputted into said A-D converter.
  • FIG. 6 is a detailed circuit diagram of the body temperature measuring section(600) of figure 3. As depicted in figure 6, the body temperature measuring section(600) is embodied by the signal measured by the body temperature measurement sensor(THERMIST)(601) being compared with a base signal generated from the base signal generator(610) by the comparator(620) and amplified.
  • the base signal generator(610) comprises a zener diode(ZDl) serially connected to a resistor(R34) and parallel connected to a ca ⁇ acitor(C29), a variable resistor(VR2) connected to a resistor(R35) and another resistor(R36), and the comparator(620) composed of operational amplifier(OPll), a resistor(R37) connected to thebase signal generator(610) and the input terminal of the inverted end of the operational amplifier, a resistor(R38) connected to the body temperature measurement sensor(601) and the input terminal of the non-inverted end, a condenser(C30), and a resistor(R39) composing a feedback loop.
  • ZDl zener diode
  • the amplified signal is offset-adjustedby the offset adjuster comprising a variable resistor(VR3) and resistors(R41,R42) , and is amplified by the common amplifier(640) comprising an operational amplifier(0P12), input end resistor(R40), and a feedbackRCparallel circuit(R43, C92), and then is inputted into the A/D converter(420) of the signal processor(400) through the body temperature measurement terminal(TEMP)(602) and is processed as the skin conductivity measurement signal.
  • the offset adjuster comprising a variable resistor(VR3) and resistors(R41,R42)
  • the common amplifier(640) comprising an operational amplifier(0P12), input end resistor(R40), and a feedbackRCparallel circuit(R43, C92
  • FIG. 7a to figure 7d are detailed circuit diagrams of the pulse measuring section(700).
  • the pulse measuring section(700) comprises a light emitter and receiver(710), a first amplification section(720) , first and second filters(730,740) depicted in figure 7b, connected to the output end(A) of said first amplification section, a second amplification section(750) depicted in figure 7c, connected to the output end(B) of said second filter, a trigger circuit(760) depicted in figure 7d, connected to the terminal
  • a fixed level of light is emitted by the LED(701) of the light emitter and receiver, and the light emitted from saidLED is receivedby thephoto transistor(PH0T0TR)(702).
  • the brightness of the light received is altered as the surface area or pressure of the finger contacting themouse is alteredbythepulse of the finger, and therebythe emitted light from the LED is read differently by the light receiving element, and therefore easy detection of the pulse is enable by reading the above alterations.
  • Resistors R44 and R45 are bias resistors.
  • the signal received by the receiving element(702) is amplified by the first amplifier(720), and the first amplifier is composed of an operational amplifier(0P13) comprised by the input end on one side thereof being connected to the receiving element(702) through a coupling capacitor(C31), bias resistors(R46 to R48), and a feedback condenser(C32).
  • Said first amplification section(720) is connected to terminal A through first and second filters(730,740), and the amplified measurement signal which passes through terminal A is fi lteredbythe second fi lter(740) which is connected by the first filter(730) and the coupling resistor(R55), and is soon amplified again by the second amplification section(750) which is connected continually through terminal B(refer to figure 7c), then is inputted into the A/D converter(420) of the signal processor(400) of the next end through the coupling capacitor(C25) and pulse measurement sensor(PULSE)(703).
  • the input to one side of said second amplification section(750) is preferably offset-adjusted by the variable resistor(VR4).
  • the reason for said filtering is to filter the light fromthe computer monitor or fluorescent lamps(for example, 60hz illuminations) to allow response to only the specific wave lights from said LED(701).
  • said second amplification section(750) also comprises anoperational amplifier(0P14) connected to terminal B through a coupling capacitor(C33), bias resistors(R49-R50), and RC parallel circuit(R48 and C32, R51 and C34) which compose a feedback loop.
  • the input end on one side of the second amplification section is connected to the offset adjustment circuit(VR4).
  • said first and second filtering circuits(730, 740) may be comprise resistors(R52-R54, R56-R58), condensers(C36-C39, C40-C43), and amplifiers(0P15, 0P16) of the known method.
  • a Schmidt trigger circuit(760) as shown in figure 7d is providedonthe output terminal(C) of said secondamplification section(750) such that said received light may be selectively measured at a fixed periodic time, and therefore limiting the waves that exceed a predetermined peak value among the measured pulse measurement signal , then by counting the number of the above waves within a predetermined time(for example, one minute) , the pulse number may be computed.
  • the Schmidt trigger circuit(760) has the signal of the amplifier circuit(C44, R59, Ql) which amplified the pulse measurement signal of connection terminal C as input, and comprises resistors(R60-R61, C45) whichare connected in companywith the timer(for example, HAI7555(U5) is used) which generates the limiting signal output, and the output thereof is again amplified by the amplifier circuit(770) which comprises resistors(R63-R64), a condenser(C46) and a transistor(2), and then is directly inputted into the input terminal(INTO) of the signal process and controller(410) without passing through the A/D converter.
  • warning elements(LED, R62)(780) are parallel connected.
  • Figure 8 is a structural diagram of the stress recognition program related to the present invention
  • figure 9 is an example of a computer monitor screen displaying stress information measured according to the present invention.
  • the pulse, body temperature, and skin conductivity/muscle conductivity values of the computer user are measured by the pulse, body temperature, and skin conductivity/muscle conductivity measuring sections at fixed intervals(for example, five second intervals), and the measured pulse, body temperature, and skin conductivity/muscle conductivity values, which are body signals, are inputted into the A/D converter(ADl) through input terminals(CH0-CH3) , as shown in figure 3 and figure 4, and are converted into digital values, and then are inputted into the processor(ICl) of the controller(410) through the output terminal(Dout) and at the same time are temporarily stored at EEPR0M(U2), and then are transmitted to the computer mainbody(200) through transmitter(800) .
  • Said transmitted signal allocates 4bits per body signal and may be comprised of 16bits. However, because skin conductivity comparatively reflects stressed state better than muscle conductivity, muscle conductivity measurement and muscle conductivity alteration coefficient computation may be skipped, and in this case the transmitted signal is comprised of 12-bit data.
  • the measured pulse, body temperature, and skin conductivity of the computer user are continuouslymeasured at a one-week or one-month interval , and the criterion stress value of the user is generated. Therefore, this criterion value may differ by the user or age.
  • the data transmitted to the computer main body(200) is analyzed by the stress recognition program stored within the stress recognition program storage(230)(refer to figure 1), and as figure 8 is a structural diagram of the stress recognition program, the stress recognition program according to the present invention is composed of a computing section(231) including pulse change coefficients ) computing section(232), body temperature change coefficient ⁇ ) computing section(233), skin conductivity change coefficient (Y ) computing section(234) and muscle conductivity change coefficient (Y ) computing section (235), a calculating section(236), and a stress index indicator(237).
  • a computing section(231) including pulse change coefficients ) computing section(232), body temperature change coefficient ⁇ ) computing section(233), skin conductivity change coefficient (Y ) computing section(234) and muscle conductivity change coefficient (Y ) computing section (235), a calculating section(236), and a stress index indicator(237).
  • the pulse change coefficients ), body temperature change coefficient ⁇ ), skin conductivity change coefficient (Y ) andmuscle conductivity change coefficient (y ) are computedby the respectively transmitted 4-bit body signal data, and for example, the equation made by computing a criterion value for a specific person is as the following. [Equation 1]
  • T is the 4-bit temperature value
  • the skin conductivity and muscle conductivity values(Y , ⁇ ) are values spanning from 0 to 4095 andmay be programmed to be artificial ly selected.
  • FIG. 9 An example of the above computed body change coefficients, namely the pulse change coefficient( ⁇ : Pulse), body temperature change coefficient( ⁇ : Temp), skin conductivity change coefficient (Y : GSR) and the stress index(ST: Stress) displayed on the monitor by the stress index indicator(237) is shown in figure 9.
  • the above computed stress index(ST) displays the stress indexes of the past one-week in a bar chart , and the stress indexes of the past one month in a bar chart, and allows the user to check the alterations in the current stress state.
  • an appropriate stimulant is applied to the user or a warning is shown on the monitor to allow the user to personally stop working and call the user to attention which ultimately enables stress relief or resolving of the user.
  • the recent one week or one month of stress is compared, for convenience, the states are classified into A: normal state phase B: some stress phase and C: much stress phase and long rest is necessary, states, and in the case of state B and C a scent spray device(140) is automatically activated, but activation may be programmed such that for state B the spray amount is 0.2 and spray amount is 0.4 for state C.
  • figure 10 to figure 17 shows another preferred embodiment of the automatic stress recognition device of the present invention applied to a computer mouse.
  • Figure 10 is a circuit diagram of the pointing function and controller of a conventional mouse
  • figure 11 is a circuit diagram of the skin conductivity measuring section
  • figure 12 is a circuit diagram of the pulse measuring section.
  • the conventional light mouse which is three-dimensional pointing enabled, comprises a X-Y axis direction movement detector(330) comprising a light emitter/receiver (R101, D101, Q101) and a movement detection signal processor(U101, XT101, C101-C103, 102), a switch section(340) having three switch inputs(SWl ⁇ SW3), a Z axis direction movement detector(350) having an encoder(ENCl) which detects rotation of the wheel, a operation indicator(360) having light emitting diodes(D102, D103) which inform whether or not themouse is operating, a transmitter(370) which sends andreceives data with the computer main body, and a processor chip(IC2) which controls the above and accompanying circuit elements(R102-R110, C104-C105, D104, XT102).
  • a X-Y axis direction movement detector(330) comprising a light emitter/receiver (R101, D101, Q101) and
  • saidprocessor chip(IC2) is circuit of the signal processor(400) of figure 4made into one chip, and includes the A/D converter and controller and the like, and besides X-Y axis direction and Z axis direction movement detection and pointing control function, it has the function of detecting skin conductivity and pulse rate.
  • Said light mouse is compliant to for example, the IBM protocol(P/S2).
  • the processor chip(IC2) sends a testing signal to the input end(R112) of the skin conductivity measuring section( ⁇ OO') and receives the measured signal from the output end(0P10) of said skin conductivity measuring section(570') through the A/D converter of the processor chip(refer to figure 11).
  • the pulse detector(700') receives the detection signal of the pulse detector(700') from the terminal C through the A/D converter within the processor chip(IC2) , and receives the comparative signal (described later) of the measured pulse signal through a timer within the processor chip(IC2)(refer to figure 11).
  • the skin conductivity measuring section( ⁇ OO') according to the second embodiment of the present invention is described hereinafter with reference to figure 11.
  • the on/off signal generated from the processor chip of the signal processor is connected to the base end of the switching transistor(Q103) through the resistor(Rill) and controls the actuation of the relay(590).
  • the signal from said processor chip is amplified by the amplificationsectioncomposedof aamplifier(OPl) andresistors(R112,R114), and then is inputted into one terminal(N0_1) of the relay(RLY_l) through the output resistor(R114).
  • Another terminal (COLD which matches said terminal(N0_D is connected to a first electrode(GSRl)(501).
  • a second electrode(GSR2)(502) and output(570') is connected on the second input/output terminals(N0_2, C0M_2) which correspond to the matching terminals(N0_l, C0M_1) a second electrode(GSR2)(502) and output(570') is connected.
  • the amplification section(530') which functions as an input is connected to the first electrode(501) and voltage of a number of volts applied to the human body, and this induced a current to flow of which the amount corresponds to the skin conductivity of the computer user, and at the same time the second electrode(502) connected to the output(570'), and therefore the detected skin conductivity output signal is transmitted to the A/D converter of the signal processor chip(IC2) through the output(570') composed of a buffer(580' ) and amplification section.
  • the output(570') and buffer(580') of said second preferred embodiment are almost identical to the skin conductivity signal output(570) and buffer(580) of the first preferred embodiment as depicted in figure 5d, and the constituting circuit elements are also identical, and therefore circuit elements having like functions are indicated with like reference numbers.
  • the inverted input terminal of the amplifier circuit is connected to earth, but the only difference in the present preferred embodiment is that it is connected to a low voltage of 2.5V.
  • the pulsemeasuring section(700' ) according to the secondpreferred embodiment of the present invention is described hereinafter with reference to figure 12.
  • the pulse measuring section(700' ) according to the secondpreferredembodiment of thepresent invention also comprises a light emitter and receiver(710'), a first amplification section(720'), a second amplification section(750') connected to the output end(A) of said first amplification section, and a comparator(790) connected to the output terminal of said second amplification section.
  • the pulse measuring section(700') of the second preferred embodiment does not use the filters(730, 740) , and first amplification section(720' ) is simply directly connected to the second amp1ification section(750' ) .
  • the light emitter and receiver(710'), first amplification section(720') and second amplification section(750') of the pulse measuring section(700') of the second preferred embodiment is also identical to those(710, 720, 750) of the first preferred embodiment, and the constituting circuit elements are also identical and therefore for circuit elements of like functions are indicatedwith like reference numbers.
  • the inverted input terminal of the first andsecondamplificationsection is connectedtoearth, but the only differences in the present preferred embodiment are that they are connected to a low voltage of 2.5V, and that on the inverted input terminal of the second amplifier circuit of the second preferred embodiment a variable resistor(VR4) for offset adjustment is not used.
  • the output signal of the output end(C) of said second amplifier(750') is also transmitted to the A/D converter of the signal processor chip(IC2).
  • Figure 13 is a wave diagram of the input/output signal of the comparator of figure 12
  • figure 14 is a schematic diagram of the processing of a mouse signal
  • figure 15a and figure 15b is a structural diagram of the mouse signal data of figure 14, where figure 15a is an example of the data showing the pointing signal of a mouse and figure 15b is an example of the data showing the body measurement signal .
  • a method of measuring pulse alterations by the detected pulse signal there is a method of receiving body information at short intervals of time(for example, 1/100-1/200 second) and determining the interval between a maximum value and a following maximum value as one cycle, but as shown in (a) of figure 13 there maybe disorder in thewave due to noise.
  • a comparison section(790) having a comparator(0P101) andpotential resistors(R115, R116) maybe accompanied such that if detected signals are higher than the reference voltage(Vref), 'high' signals are outputted, and if signals are lower than said reference voltage, 'low' signals are outputted, and thereby digital process methods are allowed as depicted in (b) of figure 12, and in this case the pulse counting is not effected even if there is noise generated and an accurate coefficient may be obtained.
  • This digital signal does not need A/D converting and may be authorized directly to the timer within the processor chip(IC2).
  • FIG 14 ahardwareblockdiagram regarding the process of the signal transmitted to the computer main body from the mouse is depicted.
  • a 4-byte signal is transmitted from the mouse(300) to a device driver(240) within the computer main body(refer to figure 15).
  • the device driver(240) recognizes the transmitted data as a common point data of the mouse and switches it so that it maybeprocessed in thewindows programs processor(250) , and the windows program processor(250) may set the next 7 bits as the mouse key state and each following 8 bits as the X, Y, Z axis direction movement values.
  • the device driver interprets the transmitted signal as body information and switches the data so that it may be processed in the stress recognition program processing section(260) which is a type of application program, and the stress recognition program processing section(260) may be set such that it interprets the next 7 bits and the next 8 bits(15 bits) as the pulse timer measurement value, and each following 8 bits as the current of the second electrode and the skin conductivity value, respectively(refer to (a) of figure 15a) .
  • the body temperature andmuscle conductivityvalue is intended to be measured and stress is intended to be measured by synthesis of the 4 parameters
  • the next 7 bits after the highest bit may be set as the body temperature, and each following 8 bits as the muscle conductivity, second electrode current and skin conductivity value, as depicted in (b) of figure 15.
  • the body information processing method in the stress recognition program processing section(260) is identical to that of the first preferred embodiment. That is, firstly the pulse change coefficient( ⁇ ) is computed according to the pulse timer value, then the skin conductivity change coefficient( ⁇ ) is computed according to the skin conductivity value, and these are combined and the stress index is determined through equation 4.
  • the skin conductivity change coefficient reflects stress better, preferably a ⁇ c preferable.
  • the above computed body change coefficients that is pulse change coefficients •" Pulse
  • skin conductivity change coefficients • ' GSR skin conductivity change coefficients • ' GSR
  • stress index(ST-' Stress) are displayed on the monitor by the stress index indicator(237).
  • Figure 16 is a flow chart showing the operation of the mouse of figure 12 to figure 14, and figure 17 is a flow chart showing the body information interpretation, transmission. subroutines.
  • the processor chip(ICl) conducts initialization(S2) such mouse timer and variable setting. Then, it resets the X-Y axis direction movement detector(330)(S3), and then detects X-Y axis direction movement through the 4 phase signal of the combination of 2 pulse of the X-Y axis direction movement detector, then checks the Z axis direction movement through the output of the encoder(ENCl) according to the rotation of the wheel(S4).
  • the mouse of the present invention checks the communication with the computer at a fixed interval(S5), and if the there is no command input from the computer main body, then sends the mouse data to the computer(S6) since the transmitter may operate in the output mode.
  • the data is processed(S7) , and the subroutine of figure 17 which interprets and transmits the body information of the computer user is performed(S8) .
  • the subroutine of interpreting and transmitting the body information of the computer user is described with reference to figure 17.
  • the processor of the mouse sends a relay 'on' signal to the skin conductivity measuring section(500') at a predetermined interval(for example, 1/100 to 1/200 seconds) and actuates the relay(RLY_l) and authorizes a 1.2V voltage to the first electrode(501) and receives a current signal through the second electrode(502) and therebymeasures the skin conductivity of the body, and also, receives a detected signal through the light emitter and receiver(710) at said predetermined interval through the pulse measuring section(700' ) .
  • these signals are received into the A/D converter and are digital processed, and the controller interprets these digital values and temporarily stores them in the buffer (S12, S13).
  • Figure 18 is ablockdiagram of the overal1 experimental test of the stress measurement mouse of the present invention
  • figure 19 is an example screen of the calculation test stimulation program used in the experiment of figure 18,
  • figure 20a and figure20b are flow charts showing respective procedures of the calculation test experiment andCPTexperiment
  • figure 21 showsphysiological signals collected by the experiment
  • figure 22a and figure22b are examples of the question sheet used in figure 20 which respectively are subjective evaluation sheets of mental and physical stress
  • figure 23a and figure23b are respective examples of the heartbeat number and GSR analysis program
  • figure 24a to figure 24c respectively show heartbeat, GSR and skin temperature change according to change in time in the calculation and CPT test.
  • a sensitivity mouse(300) of the present ' invention and a biopac(920) device not related to the present invention have been connected to the computer main body(200), where various body information such as PPG, RSP, GSR, ECG, EEGandSKTare computed.
  • various body information such as PPG, RSP, GSR, ECG, EEGandSKTare computed.
  • stress has been induced to the experiment volunteers by stimulating them through a separate computer monitor(910), and the body information of the experiment volunteers have been analyzed at a analyzer device (930) according to the MPIOOWS program(930) .
  • the volunteers of said experiment were ten male and ten female college students of twenty to twenty five years old, and the calculation test and CPKcontinuous performance test) have beenpresented and conducted as the stress stimulants.
  • the physiological signals measured were PPG, RSP, EEG, ECG measured from a biopac device not related to the present invention, and at the same time GSR, pulse signal through the automatic stress recognition mouse of the present invention, and temperature measured by a thermometer.
  • the calculation test method which is one of the stress stimulation methods, is a method which reflects the regulations of ISO 10075-2, and is a program developed with Visual Basic at the Electronic Engineering college of Jun-buk University, in which volunteers were made to simply add numbers shown on the screen, and if the results were identical to thenumbers shownon the screen, theywere to press the foot pedal joystick button 1, if the results were different theywere to press foot button2, within three seconds. The additions were fifteen minute of three digit numbers, fifteen minutes of four digit numbers totaling • thirty minutes of stress stimulation. An example of the calculation test stimulation is shown in figure 19.
  • the CPT(continuous performance test) which is another method of stress stimulation, has been introducedby "RosvoId” in 1956 to detect loss of attention in patients suffering from minor epilepsy, and was utilized in the present research as the requirement of continuous concentration in the experiment may induce mental stress. Every second a number from “0” to “9” randomly appears on the computer screen, among the numbers whenever "0" appears on the screen the volunteer must press the foot button and keep count.
  • the time of number display has been set to 29msec in the case of the horizontal frequency of the computer being 70Hz-sL.
  • the number of times "0" is displayed is one hundred twenty times among a total of four hundred eighty number displays.
  • the test results are calculated by the ratio(%) of the present stimulation to the stimulation felt by the volunteer. In this case, if concentration is poor in comparison to participation the percentage of the correct answer is very low, therefore the data within a ⁇ 10% error range of the CPT is recognized as active concentration and are used in the analysis.
  • Biopac device has been set to 512Hz, and the physiological signals through the automatic stress recognition mouse have been stored every one second. The temperature has been recorded every minute according to the readings of the thermometer.
  • the physiological signals were detected from twenty experiment volunteers, and the same volunteers were stimulated with the calculation test on the first day and the CPT on the second day.
  • the physiological signal detection time and experiment procedure were proceeded as figure 20a and figure 20b.
  • the experiment purpose and procedure of the calculation test experiment were explained(S21)
  • the electrodes were adhered and adjusted(S22)
  • thephysiological signals at the stable state were detected(S23)
  • the question sheets of the 5 stable state were asked to be written(S24).
  • FIG. 21 depicts the representative signals of physiological signal which are, in order, PPG, RSP, GSR, EEG, ECG signals.
  • the calculation stimulation method is thirty minutes
  • the CPT method is eight minutes, therefore under the assumption that lapse in time acts as a factor of stress and effects physiological signals
  • the calculation test stimulation data which was collected for thirty minutes, was divided into ten data pieces of each three minutes and then analyzed
  • the CPT data which was collected ⁇ for eight minutes, was divided into eight data pieces each of one minute and then analyzed. Therefore, in the calculation test stimulation data according to the lapse in time, the physiological signals changing every three minutes were able to be observed, and in the CPT stimulationdata thephysiological signals changing every minute were able to be observed.
  • the difference between the 0 calculation test stimulation data and the CPT stimulation data is that in the calculation test, the stimulation time is thirty minutes which is lengthy, and in the CPT it is short with eight minutes, and the calculation test is a simple mental arithmetic test and therefore the volunteers adapt to the stimulation after a certain amount of time, but in the CPT the degree of stimulation is higher ⁇ and fatigue of the eyes increase with the passing of time.
  • the GSR shows the general changing tendency of the electricity response of the skin, and is used as an index showing the level of the sympathetic nervous system, andmaybe analyzedbyobserving the general tendency in a domain of time.
  • the average of the amplitude value of the GSR was found 0 and was shown in percentage against the stable state.
  • Figure 23b depicts the GSR program used in the experiment.
  • the EEG is analyzed through frequency analysis, the frequency range is divided into ⁇ wave(under 4Hz), ⁇ wave(4 ⁇ 8Hz), ⁇ wave(8 ⁇ 13Hz), ⁇ wave(over 13Hz), then the power value for each range is found and ⁇ /( ⁇ + ⁇ ) ⁇ is calculated and is expressed in percentage against the stable state in each time zone.
  • the RSP was used for breath measurement by detecting the change in resistance that changes with the change the thorax muscles which contract and expandwhenbreathing andwas used to observe the elevation inbreathing incurred 0 from stress by analyzing the peak value of the wave during in and out-take or the number of breaths taken. In the present experiment, the number of breaths is found and was expressed in percentage against the stable state.
  • Skin temperature has the tendency to decrease due to contraction of blood vessels when the sympathetic nerves are active.
  • the skin temperature data was also expressed in percentage against the stable state.
  • the survey results were analyzed to check if the stimulation method of the present experiment was appropriate in inducing stress, in the calculation test, among the twelve questions regarding mental stress, excluding the 'head feels light' and 'feel bored', the rest of the questions became more extreme after the stimulation than before the stimulation, and among thirteen questions regarding physical stress, excluding 'feel spasms on eyelids', 'feel sleepy' and 'eyes are tired', the rest of the questions became more extreme after the stimulation than before the stimulation.
  • the time taken to detect the stable state physiological signal is ten minutes and during that time one stares at one place and so he/she may be bored before receiving stress stimulation.
  • the thirtyminutes of the calculation test one continuously gazes at the 4-digit numbers on the screen and conducts mental arithmetic and therefore there has been some movement of the eye and that may be seen as why the eye may be less tired.
  • the stimulation itself is instantlydistinguishingnumbers flashing in a short amount of time which would apply much more fatigue to the eyes, that is why the CPT stimulation would have aggravated the eyes more from the stable state.
  • I ⁇ numbers for the calculation and CPT tests are shown in figure 24a.
  • Each value of the graph expresses the percent increase amount with the heartbeat number of the stable state before the stimulation as the reference, and it can be seen that during the stimulation the heartbeat number has increased overall in comparison to the stable state.
  • the heartbeat number has the tendency to increases the most as the difficulty of the test increases at the eighteen minute mark when the first level(3 digits) stimulationends and the second level(4digit) stimulationbegins.
  • the CPT test stimulation in the initial stage there is some increase and the maximum change is displayed at the 6-minute mark. This canbe interpreted ⁇ to be that at the beginning of the stimulation, there is some increase in comparison to the stable state due to nervousness, and after some time lapses one adapts to the stimulation then feels more mental burden as more time lapses.
  • the stress was classified into three phases of 1, 2, 3 according to the change in heartbeat.
  • the maximum stress at the 18-minute mark which is the starting point of the second level(4 digits) was set as the phase 3 stress, and the phase 2 and phase 1 values were set as value 50% and 2 ⁇ % of the 3 phase value.
  • the maximum stress at the 6-minute mark was set as the phase 3 stress, and the phase 2 and phase 1 value were set as the case of the calculation test .
  • the largest change is shown when 0 the stimulation of the first level begins, and increases large proportions again when the difficulty of the level increases at the 18-minute mark which is the response to the second level(4 digits) stimulation.
  • the largest change is shown at the beginning of the stimulation and decreases as time lapses. Therefore, in the case of GSR, with the calculation test as the ⁇ reference, the 3-minute mark was set as phase 3 and the 18-minute mark was set as phase 2.
  • Phase 1 was set as ⁇ 0% of phase 2.
  • the first 1-minute was set as phase 3 and values of ⁇ 0% and 25% of the phase 3 value was set as phase 2 and phase 1, and a summary of the results is shown in table 2.
  • respiration when stimulation is applied to the sympathetic nervous system due to stress or nervousness, the phenomenon of increase in respiration can be seen, and in the present research increase in respiration was observed, but it was difficult to find a meaningful difference in the shape of change.
  • the survey result has been analyzed and whether or not the stimulationmethods used in the present researchwas appropriate to induce stress was observed.
  • the level thereof was muchmore extreme after the stimulation than before the simulation. That is to say, it has been confirmed that if changes in physiological signals over time can be found, then they may be used as index for the level of stress.
  • the stress index value was able to be found for the calculation test stimulation and CPT stimulation, and when the level of stress is classified into three phases, the physiological signal variable representing respective phases may be calculated into a percent change rate against a reference value through equation 5.
  • HR has set the calculation test stimulation as reference and GSR was found with the average of the index values obtained through the calculation and CPT stimulation.
  • ref is the initial value before the volunteers entered the stimulation state, and has significant difference in the absolute value for individuals and therefore was used to set the reference value for individuals and measure the change from that value.
  • the peripheral device may automatically measure various body information and check the level of stress or fatigue and thereby is able to provide data of which the computer user may use to relieve or resolve stress.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Psychiatry (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Human Computer Interaction (AREA)
  • Educational Technology (AREA)
  • Social Psychology (AREA)
  • Hospice & Palliative Care (AREA)
  • Developmental Disabilities (AREA)
  • Child & Adolescent Psychology (AREA)
  • Psychology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dermatology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un dispositif périphérique d'ordinateur, conçu pour reconnaître automatiquement le stress, et un système pour déterminer le stress au moyen dudit dispositif. Le système de l'invention mesure et traite les informations sur le corps, dont le pouls, la température de la peau, la conductivité de la peau et/ou la conductivité des muscles d'un utilisateur d'ordinateur, au moyen d'un organe de mesure (500, 600, 700) et d'un organe de traitement (400) dans un dispositif périphérique (300). Ledit système produit ensuite un indice de stress à partir des informations traitées par un programme de reconnaissance de stress d'un ordinateur (200) et affiche sur un écran l'indice de stress produit. L'indice de stress de l'utilisateur est mesuré automatiquement puis affiché, l'utilisateur étant ainsi capable de prendre des mesures de relaxation ou de réduction du stress pendant le travail.
PCT/KR2000/001079 2000-01-21 2000-09-28 Dispositif peripherique d'ordinateur, pour la reconnaissance automatique du stress et systeme pour determiner le stress au moyen dudit dispositif WO2001054043A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR2000/2979 2000-01-21
KR20000002979 2000-01-21
KR2000/49896 2000-08-26
KR10-2000-0049896A KR100418434B1 (ko) 2000-01-21 2000-08-26 스트레스 자동인식 컴퓨터 주변장치 및 이를 이용한스트레스 측정 시스템

Publications (1)

Publication Number Publication Date
WO2001054043A1 true WO2001054043A1 (fr) 2001-07-26

Family

ID=26636814

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2000/001079 WO2001054043A1 (fr) 2000-01-21 2000-09-28 Dispositif peripherique d'ordinateur, pour la reconnaissance automatique du stress et systeme pour determiner le stress au moyen dudit dispositif

Country Status (3)

Country Link
KR (1) KR100418434B1 (fr)
CN (1) CN1361895A (fr)
WO (1) WO2001054043A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389899A (en) * 2002-05-27 2003-12-24 Tatung Co Ltd Circuit built in a computer peripheral for physiological signal processing
US6805074B2 (en) 2002-12-23 2004-10-19 Cargill, Incorporated System and method of customizing an animal feed based on heat increment
EP1750197A2 (fr) 2005-07-15 2007-02-07 Avago Technologies General IP (Singapore) Pte. Ltd Procédé et appareil de surveillance d'un état ergonomique à risque
US7296537B2 (en) 2000-12-15 2007-11-20 Can Technologies, Inc. Computer system for determining a customized animal feed
US7827015B2 (en) 2004-07-29 2010-11-02 Can Technologies, Inc. System and method for optimizing animal production based on environmental nutrient inputs
WO2012047281A1 (fr) * 2010-10-04 2012-04-12 S. C. Johnson & Son, Inc. Appareil et procédés de soulagement du stress
JP2015503937A (ja) * 2011-11-22 2015-02-05 コーニンクレッカ フィリップス エヌ ヴェ メンタルバランス又はアンバランス推定システム及び方法
US9379947B2 (en) 2010-02-26 2016-06-28 Nec Corporation Monitoring status display device, monitoring status display method and monitoring status display program
WO2016204496A1 (fr) * 2015-06-16 2016-12-22 Samsung Electronics Co., Ltd. Système et procédé de fourniture d'informations de dispositif périphérique
GB2554417A (en) * 2016-09-26 2018-04-04 Bfb Labs Ltd System for assessing effective physiological performance
US9962104B2 (en) 2011-04-14 2018-05-08 Koninklijke Philips N.V. Stress-measuring device and method
CN110074799A (zh) * 2019-05-24 2019-08-02 蚌埠医学院 一种人体生理压力评估方法及装置

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425342B1 (ko) * 2000-09-02 2004-03-30 삼성전자주식회사 신체 및 감정 상태 인식 장치 및 방법
KR20020088039A (ko) * 2001-05-16 2002-11-25 (주)소노스 개인용 컴퓨터의 주변기기형 재택 의료기기
KR100455286B1 (ko) * 2002-01-11 2004-11-06 삼성전자주식회사 생리신호획득 및 해석을 이용한 동물의 상태 파악 방법 및장치
KR100485906B1 (ko) * 2002-06-26 2005-04-29 삼성전자주식회사 정서유도 장치 및 방법
KR100397188B1 (ko) * 2002-10-21 2003-09-13 한국표준과학연구원 실시간 종합 감성 평가 방법 및 그 시스템
KR101105137B1 (ko) * 2004-10-05 2012-01-16 엘지전자 주식회사 공기조화기의 제어장치 및 방법
KR100748184B1 (ko) * 2005-05-11 2007-08-10 인하대학교 산학협력단 신경망을 이용한 심전도 기반의 심장질환 진단장치 및방법
CN101419510B (zh) * 2007-10-24 2013-01-02 华硕电脑股份有限公司 具有生理量测电极的电子输入装置
CN104939824B (zh) * 2014-03-31 2018-06-19 深圳市宏电技术股份有限公司 一种穿戴设备、用于穿戴设备的检测电路和方法
CN104095642B (zh) * 2014-07-08 2016-04-13 深圳市宏电技术股份有限公司 一种基于皮肤电导率的压力等级划分方法及系统
KR20160086080A (ko) 2015-01-09 2016-07-19 신민용 휴대용 방독면
KR20160086081A (ko) 2015-01-09 2016-07-19 신민용 휴대용 방독면 자동 제공시스템
KR102118166B1 (ko) * 2018-05-25 2020-06-02 (주)비엠비엘 실시간 생체정보를 이용한 능동형 스트레스 완화 장치, 시스템 및 방법
KR102218713B1 (ko) 2019-02-14 2021-02-22 연세대학교 산학협력단 발표자의 정신적 스트레스 인식 및 피드백 제공 장치
KR102273065B1 (ko) * 2019-12-06 2021-07-05 재단법인 포항산업과학연구원 팜 레스트형 생체 정보 측정 장치
KR20230100780A (ko) 2021-12-28 2023-07-06 (주)인더스웰 심리적 불안감 방지를 위한 인공지능 심리지원 서비스시스템

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282474A (en) * 1990-11-09 1994-02-01 Centro De Neurociencias De Cuba Method and system for the evaluation and visual display of abnormal electromagnetic physiological activity of the brain and the heart
US5568126A (en) * 1995-07-10 1996-10-22 Andersen; Stig L. Providing an alarm in response to a determination that a person may have suddenly experienced fear
US5921940A (en) * 1991-02-20 1999-07-13 Georgetown University Method and apparatus for using physiologic stress in assessing myocardial electrical stability
KR19990084052A (ko) * 1999-01-28 1999-12-06 김현 스트레스 완화용 컴퓨터 시스템 및 그 구동 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04180730A (ja) * 1990-11-16 1992-06-26 Atsufuku Takara ストレスレベル測定装置
KR100231473B1 (ko) * 1997-06-04 1999-11-15 최명기 자동 스트레스 측정장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282474A (en) * 1990-11-09 1994-02-01 Centro De Neurociencias De Cuba Method and system for the evaluation and visual display of abnormal electromagnetic physiological activity of the brain and the heart
US5921940A (en) * 1991-02-20 1999-07-13 Georgetown University Method and apparatus for using physiologic stress in assessing myocardial electrical stability
US5568126A (en) * 1995-07-10 1996-10-22 Andersen; Stig L. Providing an alarm in response to a determination that a person may have suddenly experienced fear
KR19990084052A (ko) * 1999-01-28 1999-12-06 김현 스트레스 완화용 컴퓨터 시스템 및 그 구동 방법

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7296537B2 (en) 2000-12-15 2007-11-20 Can Technologies, Inc. Computer system for determining a customized animal feed
GB2389899B (en) * 2002-05-27 2005-11-23 Tatung Co Ltd Circuit apparatus built in a computer peripheral device for detecting physiological signal
GB2389899A (en) * 2002-05-27 2003-12-24 Tatung Co Ltd Circuit built in a computer peripheral for physiological signal processing
US6805074B2 (en) 2002-12-23 2004-10-19 Cargill, Incorporated System and method of customizing an animal feed based on heat increment
US7827015B2 (en) 2004-07-29 2010-11-02 Can Technologies, Inc. System and method for optimizing animal production based on environmental nutrient inputs
US7904284B2 (en) 2004-07-29 2011-03-08 Can Technologies, Inc. System and method for optimizing animal production based on empirical feedback
EP1750197A2 (fr) 2005-07-15 2007-02-07 Avago Technologies General IP (Singapore) Pte. Ltd Procédé et appareil de surveillance d'un état ergonomique à risque
EP1750197A3 (fr) * 2005-07-15 2008-10-29 Avago Technologies General IP (Singapore) Pte. Ltd Procédé et appareil de surveillance d'un état ergonomique à risque
US9379947B2 (en) 2010-02-26 2016-06-28 Nec Corporation Monitoring status display device, monitoring status display method and monitoring status display program
WO2012047281A1 (fr) * 2010-10-04 2012-04-12 S. C. Johnson & Son, Inc. Appareil et procédés de soulagement du stress
US9962104B2 (en) 2011-04-14 2018-05-08 Koninklijke Philips N.V. Stress-measuring device and method
JP2015503937A (ja) * 2011-11-22 2015-02-05 コーニンクレッカ フィリップス エヌ ヴェ メンタルバランス又はアンバランス推定システム及び方法
WO2016204496A1 (fr) * 2015-06-16 2016-12-22 Samsung Electronics Co., Ltd. Système et procédé de fourniture d'informations de dispositif périphérique
US10327715B2 (en) 2015-06-16 2019-06-25 Samsung Electronics Co., Ltd. System and method of providing information of peripheral device
GB2554417A (en) * 2016-09-26 2018-04-04 Bfb Labs Ltd System for assessing effective physiological performance
CN110074799A (zh) * 2019-05-24 2019-08-02 蚌埠医学院 一种人体生理压力评估方法及装置

Also Published As

Publication number Publication date
KR20010076180A (ko) 2001-08-11
CN1361895A (zh) 2002-07-31
KR100418434B1 (ko) 2004-02-11

Similar Documents

Publication Publication Date Title
WO2001054043A1 (fr) Dispositif peripherique d'ordinateur, pour la reconnaissance automatique du stress et systeme pour determiner le stress au moyen dudit dispositif
JP4243605B2 (ja) 自律神経検査装置
CN110327024B (zh) 一种基于按摩椅的健康参数检测方法、装置和系统
US11896401B2 (en) Personal healthcare device
US5375610A (en) Apparatus for the functional assessment of human activity
JP6920434B2 (ja) 疲労回復支援装置
US8323216B2 (en) System and method for applied kinesiology feedback
US7395104B2 (en) Methods and devices for non-invasively measuring quantitative information of substances in living organisms
AU750315B2 (en) Apparatus and methods for assessment of neuromuscular function
US6146335A (en) Apparatus for methods for the assessment of neuromuscular function of the lower extremity
CA1322252C (fr) Appareil de surveillance du degre de tension mentale
WO2000044274A2 (fr) Dispositif de monitorage physiologique personnel
US20140257049A1 (en) Wearable heart monitoring apparatus
CN104181809B (zh) 集计步器、心电、血氧功能的智能腕表
JP5327458B2 (ja) 精神ストレス評価とそれを用いた装置とそのプログラム
KR100745673B1 (ko) 생체지수 측정장치 및 방법
KR20020070855A (ko) 마사지기 및 그 기계에 사용하기 위한 생리량 측정 회로
US11699524B2 (en) System for continuous detection and monitoring of symptoms of Parkinson's disease
JP2019030389A (ja) 自律神経状態評価装置、自律神経状態評価システム、自律神経状態評価方法及びプログラム
WO2005070288A1 (fr) Combinaison d'un siege de toilettes avec un ou plusieurs instruments de diagnostic medical
Androutsou et al. A smart computer mouse with biometric sensors for unobtrusive office work-related stress monitoring
RU165429U1 (ru) Устройство для психофизиологического экспресс-контроля функционального состояния персонала, работающего на опасных производственных объектах
Hueting et al. Measuring fatigue.
JPH1071137A (ja) ストレス度表示装置及びストレス度表示方法
KR20030093440A (ko) 건강진단용 생체신호 검출 마우스와 이를 이용한건강진단장치 및 건강진단 방법

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 008103712

Country of ref document: CN

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: COMMUNICATION UNDER RULE 69 EPC (EPO FORM 1205A OF 15.11.2002)

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP