CN1361895A

CN1361895A - Peripheral device of computer for automatically recognizing stress and system for determining stress using the same

Info

Publication number: CN1361895A
Application number: CN00810371A
Authority: CN
Inventors: 金玄
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-21
Filing date: 2000-09-28
Publication date: 2002-07-31
Also published as: KR20010076180A; WO2001054043A1; KR100418434B1

Abstract

The present invention relates to a peripheral device of computer for automatically recognizing stress and system for determining the stress using the device. The system pertaining to the present invention measures and processes body information, such as pulses, skin temperature, skin conductivity and/or muscle conductivity of a computer user by measuring means (500, 600, 700) and process means (400) in a peripheral device (300), produces a stress index from the processed information by a stress-recognizing program in a computer (200), and displays the produced stress index on a display. According to the present invention, the stress index of the user are automatically measured and then displayed, and the user is, therefore, able to take an action for relaxing or lapsing the stress during a working.

Description

Be used for discerning automatically the computer peripheral of pressure and the system that this equipment of use is determined pressure

Background technology

The computer peripheral and the pressure that the present invention relates to be used for to discern automatically computing machine user's pressure are determined system.Be particularly related to the computer peripheral and the piezometry system that are used for discerning automatically pressure, this system measures user's pulse, temperature, skin conductance speed and/or muscle conduction velocity by computer peripheral such as mouse, and judge that with these information input computing machines and according to measured value information together with determined pressure total amount, is presented on the monitor subsequently.

Recently, along with increasing suddenly of computing machine user, the computed time is also increasing with same big ratio, because the increasing suddenly of service time, and pressure and may become serious problem by VDT (display) syndrome that computing machine causes.

In addition, current people's life also is faced with inevitable pressure.These pressure are just causing more disease and are making the mankind suffer misery that this must make people think that the disease of most of unknown causes all comes from pressure.Therefore, pressure has become the reason of numerous disease, and is about the contact between pressure and the disease in the many research topics of world wide.

Usually, pressure is relevant with all indignation, and it has broken the balance of human body, comprises from health to physiological transformation.When bearing pressure, the lower position of the brain thalamus of mobile equilibrium is at first discerned pressure in the control human body.The lower position of thalamus stimulates sympathetic nerve immediately then, and bring out the secretion of stress hormone (catecholamine) and cause vessel retraction in the body, pupil dilation, palpitating speed, accelerated breathing, the wriggling of stomach suspends.Equally, the lower position of thalamus stimulates the pituitary gland of secretion cortex hormone of aadrenaline, promotes the secretion of cortisol hormone and has increased the generation of glucose in the liver.Glucose that is increased and oxygen quicken to flow by the contraction of blood vessel and concentrate in and also adapts to outside indignation in brain and the muscle fully, but can not arrive the blood vessel tip, the phenomenon of trick quenching therefore can occur.Pituitary gland has also strengthened the function that adrenaline is entered blood.Adrenaline has improved stimulation level with the steroids by the adrenal cortex secretion.The stress reaction that all these are relevant with chemical substance has stimulated nervous system, heart vessel and musculature.The above-mentioned reaction that is caused by temporary transient pressure is normal, still, if the especially lasting appearance of stress of pressure will produce fatal harm to human body.

In order to address the above problem, the present inventor has developed Stress Resolvable ComputerSystem (computer system of distinguishable pressure), open in the korean patent application 99-38330 on September 9th, 1999, comprised above-mentioned patented claim here and as a part of the present invention.

As shown in Figure 1, above-mentioned korean patent application according to the present inventor, execution or control program are application programs that is used to eliminate pressure, install on computers by program transmission medium or remote control equipment, the program of preparing on the website is passed through network download, form a complete application program, it is carried out and control program is stored in main frame (200) internal storage (210), data program is stored in the data program memory member (220), the pressure recognizer is stored in the pressure recognizer memory member (230), place an equipment at computer peripheral (300) that computing machine user duration of work uses on as mouse or keyboard, by this equipment, pressure can be identified by pressure identification sensor (320) and transducer translating unit (310), and carry out the program of slowing down pressure according to user's pressure index, therefore, when the pressure identification signal is transfused to as mouse or keyboard by peripherals (300), be converted into suitable data and the converter (110) by follower (100) comes control signal from the signal of microprocessor, the processing of sound is output by loudspeaker (130), the processing of color is output by monitor (120), the processing of smell is to implement by the fragrance that spraying apparatus (140) sprays, so pressure can be alleviated or eliminate.Loudspeaker and monitor the chances are well-known equipment, and spraying apparatus for example, can utilize the equipment among present inventor's the patented claim 00-27636 on 23 days Mays in 2000.

Similarly, in the computer system of the slowed down pressure that can discern pressure automatically, the pressure identification sensor (320) that can respond to user's pressure is attached on the peripherals (300) that uses in user's work, as keyboard or mouse, and the body state such as the pulse rates that are identified according to the total amount of pressure, body temperature or SC are transferred in computing machine or the microprocessor by transducer translating unit (310), the program of slowing down pressure begins operation, so the computing machine user can processing pressure also increase work efficiency in the use of computing machine conversely.

In addition, though the pressure difference that everyone bears all has following symptom, as decreased attention, be difficult to make simple judgement, lose the confidence, easy on the trigger or angry continually, anxiety and uneasiness, appetite increases or reduces, irrational fear or unexpected spasm, artery sclerosis, sterility.Equally, the reply of nervous system and internal system and stress reaction is closely-related, and this can be found by different physiological signals.

Moreover, there are many methods can determine the information of human body, also there are many equipment and instrument to measure this information.Yet these simple information of measuring can not be utilized effectively.

On the one hand, the many portable equipment people that produce use very comfortable, but after in fact people carry out measurement as pulse rates, when checking as a result, just make a random judgement simply, because common people are difficult to the total amount of definite pressure that is born.Similarly, some measuring equipment produces error when the simple people's of measurement pulse rates, and converts this variable quantity of pulse rates to pressure index.On the other hand, some equipment has been gathered the relevant information of several human bodies, but but quite complexity and equipment price height, so the equipment that they developed is for the ordinary people, and especially the computing machine user can not be utilized veritably.

Summary of the invention

The purpose of this invention is to provide the computing machine that a kind of computer peripheral (particularly mouse) that is used for discerning automatically pressure is used for the above-mentioned computer system of slowing down pressure or discerns the present pressure index of user automatically and the user is sounded a warning, this has related to a system that always keeps contacting and be built in mouse in the mouse in the computing machine use, body temperature, pulse, SC and/or muscle conduction are directly measured by mouse, various a large amount of values of information are sent to CPU, wherein, information is measured, judge and storage, and the data that record finally are received in the main frame of computing machine, and the various information of expression pressure or tired total amount are displayed on the monitor together with the Comprehensive analysis results of having done.

In computed process, when hand contacts with mouse, the present invention is by being placed in the information of the sensor sensing human body on the mouse surface, be body temperature, pulse rates, SC and amount of sweat, muscle conduction, volume of blood flow, blood pressure, PO2, and these information are presented on the monitor, simultaneously the relevant information of human body is analyzed with detected pressures and tired total amount.

In a word, primary and foremost purpose of the present invention is to measure information and the detected pressures or the tired total amount of human body.The design of native system can allow ordinary people's simple and measurement easily when using a computer, and can access the various information of human body and draw the data of comprehensive judgement by these information, to determine whether pressure exists.

Second purpose of the present invention is function fundamentally detected pressures or the tired total amount of utilizing the peripherals as the mouse.When cost plenty of time businessman or student's condition that when using a computer, can detect them at any time on computers.

Another object of the present invention is by adding a simple equipment, providing one can measure the mouse of compellent pressure.

For achieving the above object, computing machine pressure-measuring system as one aspect of the present invention, comprised computer peripheral (300), this peripherals comprises the human body information measurement component of metering computer user human body information, be used to handle the equipment (400) of above-mentioned measured human body information, and send human information signal that above-mentioned signal Processing the crosses equipment (800) to the main frame; And the main frame that has a pressure recognizer (200) that is provided can be used to calculate the human body information variation factor by the human information signal of above-mentioned transmission, and is each coefficient assign weights and calculating, to determine pressure index.

Preferably described human body information measurement component comprises at least one SC measurement component and pulses measure parts, and more preferably, described human body information measurement component also comprises measurement of bldy temperature parts and muscle conductivity measurement parts.

In addition, described signal handling equipment preferentially comprises a conversion equipment (420) that is used for detected human body signal is carried out A/D (mould/number) conversion, an equipment (430) that is used for temporarily storing detected human body signal information, with a controller (410), described pressure recognizer comprises that more preferably one can make pressure index be presented at pressure index indicator on the monitor.

In addition, described main frame is except the window writing routine processor (250) of the I/O that is used to handle multi-purpose computer, also comprise a pressure recognizer processor (260), also can further be equipped with a device driver (240), if from peripherals input be human body information, it will be imported data and be converted to the pressure recognizer so.

For achieving the above object, the computer peripheral that comprises the human body information measurement component that contains metering computer user human body information as the computer peripheral of another aspect of the present invention, an equipment (400) that is used for the described human body information that measures of signal Processing, with an equipment (800) that sends human information signal that described signal Processing crosses to main frame, described human body information measurement component comprises SC measurement component (500; 500 ') and pulses measure parts (700,700 '), described SC measurement component comprises that is used to authorize first electrode (501) of detection signal to the skin, and one is used for from skin induction human information signal's second electrode (502) and is used to export the signal sensed from second electrode follower (570 to signal handling equipment (400); 570 '), described pulses measure parts comprise the transmitter and the receiver (710) of light, and one is used to amplify and exports and is used for described amplifying signal and reference voltage (Vref) compares and with comparer (790) signal digitalized and counting from the amplifier of the detected signal of described optical receiver and one.Preferably, described peripherals is equipment such as the mouse with click function.

Description of drawings

Shown in Figure 1 is the block scheme that the pressure identification relevant with the present invention produces the computer system of smell,

Fig. 2 is the structural drawing according to the mouse of the automatic identification pressure of a preferred embodiment of the present invention,

Fig. 3 is the circuit block diagram according to the mouse of the automatic identification pressure of a preferred embodiment of the present invention,

Fig. 4 is the signal processor among Fig. 3 and the detailed circuit diagram of transmitter,

Fig. 5 a to Fig. 5 d is the detailed circuit diagram of the SC/muscle conductivity measurement parts among Fig. 3,

Fig. 5 e is the equivalent circuit diagram of Fig. 5 a to Fig. 5 d,

Fig. 6 is the detailed circuit diagram of the measurement of bldy temperature parts among Fig. 3,

Fig. 7 a to Fig. 7 d is the detailed circuit diagram of the pulses measure parts among Fig. 3,

Fig. 8 is the structural drawing of the pressure recognizer among Fig. 1,

Fig. 9 is the instance graph that shows the computer monitor of the pressure information of being determined by the present invention,

Figure 10 to Figure 12 is the circuit diagram of another embodiment of the pressure survey mouse relevant with the present invention, and Figure 10 is the click function and the control assembly of a conventional mouse, and Figure 11 is the measurement component of SC, and Figure 12 is the pulses measure parts,

Figure 13 is the ripple figure of comparer input/output signal,

Shown in Figure 14 is the synoptic diagram that mouse signal is handled,

Figure 15 a and Figure 15 b are the structural drawing of the mouse signal data among Figure 14, and wherein Figure 15 a is the example of expression click signal data, and Figure 15 b is the example of expression anthropological measuring signal data,

Figure 16 is the process flow diagram of mouse action of the preferred embodiment of Figure 12 to Figure 14,

That shown in Figure 17 is the subroutine figure of translation and the transmission activity of the human information signal among Figure 16,

Figure 18 is the calcspar according to the integral experiment test of pressure survey mouse of the present invention,

Figure 19 shows is the computer screen of calculating testing stimulus program used during Figure 18 tests,

Figure 20 a and 20b have represented the processing procedure of calculating test experiments and CPT (continuous performance test (CPT)) experiment respectively,

What Figure 21 described is the physiological signal of being gathered by experiment,

Figure 22 a and Figure 22 b are the examples that is used for the questionnaire of Figure 20 a and 20b, are respectively personal evaluation's table of stress and body pressure,

Figure 23 a and Figure 23 b are respectively the example of heartbeat number of times and GSR (electrodermal response) routine analyzer,

Shown in Figure 24 a to Figure 24 c is the variable quantity of foundation calculating and heartbeat number of times, GSR and the skin temperature of CPT test duration.＜〉100： 10：120： 130：140： 150：200：210：220：230：231：236： 237：240： 250：260：300： 310：320：330：X-Y340：350：Z-360： 370：400： 410：420：A/D 430：500； 500 ': SC/muscle conductivity measurement parts 510:D/A converter 520:timer 530; 540:the second amplifier units 550 of 530 ': the first amplifier unit:bias box parts 560:muscle conductibility signal output apparatus 570; 570 ': SC signal output apparatus 580:buffer 590; 590 ': relay 600:measurement of bldy temperature parts 610:baseplate signal generator 620:comparator 630:side-play amount adjuster 640:amplifier unit 700:pulses measure parts 710:optical transmitting set and optical receiver 720; 740:the second wave filter 750,750 ': the second amplifier units 760 of 730:the first wave filters of 720 ': the first amplifier unit:770:the three amplifier units 780 of circuits for triggering:alarm features 790:comparator 800:transmitter 910:computer monitor 920:BIOPAC930:MP100WS program 940:analytical equipment

Embodiment

Referring to figs. 2 to Fig. 9, a preferred embodiment of the present invention is described below.

Fig. 2 and Fig. 3 are the structural drawing according to the automatic pressure identification mouse of a preferred embodiment of the present invention.

According to Fig. 2, the sensor of various human body informations that can each position of human body when holding mouse (320) is installed on the mouse.For example, be used in the pulses measure sensor (322) of the terminal contact site of thumb, be used in the body temperature trans (323) of contact site in the middle of the palm, and measure user's SC and/or the conductive SC/muscle conductivity measurement sensor (321) that contains first and second electrodes of muscle and be installed in the forefinger that knocks mousebutton or the position of the terminal contact of middle finger (or nameless).Except installation had the circuit of common peripherals (finger mouse here) function, mouse inside had also been installed one about the circuit (311) that can discern human body information and signal Processing human information signal of the present invention.

Fig. 3 is the circuit block diagram according to the automatic pressure identification mouse of a preferred embodiment of the present invention.From pulses measure parts (700), the electronic signal of measurement of bldy temperature parts (600) and SC/muscle conductive member (500) respectively with the pulses measure sensor of described mouse, the measurement of bldy temperature sensor is connected with SC/muscle conductivity measurement sensor, and be input in the A/D converter (420) of signal processor (400), be converted into digital signal, and it is suitably processed in signal Processing and controller (410), be input on the microprocessor in the main frame by transmitter (800) then, and export on the monitor, inform the pressure state that the user is current.Therefore allow the user have a rest or provide suitable picture or sound or the sense of touch that produces smell or stimulate the user releasing the pressure, thereby farthest reduce pressure.Here, the output of described A/D converter (420) is temporarily stored in EEPROM (electricallyerasable ROM (EEROM)) (430), and when needed or occur can re-using behind the power fail.Equally, the value (being described subsequently) of the timer that does not carry out the digitizing conversion in the output of described pulses measure parts (700) directly is sent to the signal processor of controller (410) and the terminal (INTO) last (referring to Fig. 4) of control chip (ICI).

Fig. 4 is the signal processor, (400) among Fig. 3 and the detailed circuit diagram of transmitter, (800). the pulses measure parts, (700) and the measurement of bldy temperature parts, (600) measured output and the SC of describing subsequently/muscle conductivity measurement parts, (500) A/D converter is passed through in output, (such as the MAX186 that uses, (AD1)), (420) convert controller to, (410) data signal that can process; Input in signal processing and controller (such as the 89C52 (IC1) that use) and processing signals by first input/output terminal (P1.0 to P1.7) data signal that converts to, be sent in the main frame of computer by transmitter (such as the MAX232C (U1) that uses) (80) by sending terminal (TXD) (801) subsequently. Simultaneously, the control signal from main frame inputs in the above-mentioned processor (IC1) through above-mentioned transmitter (800) by above-mentioned reception terminal (RXD) (802) .On the other hand, the digital signal of A/D converter is temporarily stored in the EEPROM of scratchpad memory (430) (as the 93C46 (U2) that uses), when wanting to use past data or can re-using by controller (410) during power fail.For convenience, clock-signal generator that above-mentioned processor has (Y1) and reseting signal generator (U1) and the circuit component that in above-mentioned chip separately, uses (C1-C10, R1) and the description of rated voltage be omitted.

Fig. 5 a to Fig. 5 d is the detailed circuit diagram of the SC/muscle conductivity measurement parts (500) among Fig. 3.

As describing among Fig. 5 a, second input/output terminal (P0.0 to P0.7) of the processor controls of described controller (410) links to each other with the Darlington that serves as timer (520) (Darlington) driver (as the ULN2803 (U3) that uses), the lead-out terminal of described chip links to each other with relay terminal RY1 to RY7, for example, in order to measure one time SC per 5 seconds, relay (RLY-1 to RYL-7) is converted once per 5 seconds.Between each lead-out terminal of above-mentioned Darlington driver and relay diode (D1-D7), adopt parallel connection method to be connected to reach the stable purpose of controlling.

Simultaneously, the 3rd input/output terminal (P0.0 to P0.7) of above-mentioned processor controls (IC1) is connected by the input terminal of the array resistors that is connected in parallel (AR1) with D/A converter (as the DAC0808 (DA1) that uses), for example, output digital signal convert sinusoidal wave simulating signal to by D/A converter (510), be authorized to then to the second and the 3rd relay (RLY-2 and RLY-3) (with reference to figure 5b) as test signal.Yet shown in Fig. 5 b, the output simulating signal of above-mentioned D/A converter (510) is amplified by first and second amplifier units (530,540), is authorized to after biased device (550) is adjusted into suitable operation bias voltage.For convenience of description, omitted the circuit component had in the D/A converter chip (R2, VR1, C11) and the description of recommending that excites.First and second amplifier units (530,540) can be with known use operational amplifier (OP1, OP2) amplifying circuit is implemented, resistor and capacitor element (R3-R5, C12-C14) and biasing member (550) also can use known bias resistor (R6, R7) implement, therefore omitted the detailed description of this part.In any case bias resistor all is preferred, its operation bias voltage is 1.2V.

The simulating signal (Vout) of output is authorized to the second and the 3rd relay (RLY-2, RLY-3) input (COM-2), the output of above-mentioned second relay (NO-2) is connected in the input (COM-1) and first electrode (501) of the 7th relay (RLY-7), and the output of above-mentioned the 3rd relay (COM-2) is connected in the input (NO-1) and second electrode (502) of the 6th relay (RLY-6).Simultaneously, first and second electrodes (501,502) be connected to the first and second input terminal (COM-1 of first relay (RLY-1), COM-2) on, first and second lead-out terminal (the NO-1 corresponding to each input terminal, NO-2) be connected to muscle conduction signal output (560) input (D, E) on.Equally, above-mentioned first and second electrodes (501,502) be connected respectively to the 4th and the 5th relay (RLY-4, RLY-5) on the input terminal (COM-1), the anti-phase output (N.C.) of output of above-mentioned the 4th relay (NO-1) and the 5th relay be connected to the output (570) of SC signal input (F, G) on.

What Fig. 5 c described is the detailed circuit diagram of muscle conduction signal output apparatus (560), it comprises an amplifier unit (R8-R18, C15-18, OP3-OP5), filter part (R19-R24, C19-C26, OP6-OP7) and amplifier unit (R26-R28, C27-C28), the signal that finally detects is connected on the A/D converter (AD1) by terminal (MUSCLE) (503).What Fig. 5 d described is the detailed circuit diagram of SC signal output apparatus (570), the electric current that in first and second electrodes, flows (i1 ,-i2) (F G) locates to flow into, and the difference signal of two electric currents (i1-i2) is transfused to from contact point from input respectively.Above-mentioned input signal is input to that (D9, D10), (R29, R30) and in the impact damper (580) formed of voltage follower (OP9), (R31-R33, C91 OP10) connect potential resistor and impact damper is again with amplifier circuit by diode limiter.The final detected signal that is exaggerated is connected on the A/D converter by terminal (SKIN) (504).For reference only, have RC parallel circuit from above-mentioned amplifier circuit feedback (R33, C91) capacitor in not necessarily, but preferred capacitor is to prevent high frequency noise and vibration in the RC parallel-connection structure.

What Fig. 5 e described is the equivalent electrical circuit of above-mentioned Fig. 5 b to Fig. 5 d.Referring to Fig. 5 e, the operation of above-mentioned SC/muscle conductivity measurement parts (500) has been described.In order to test, be exaggerated and carry out bias voltage correction (530-550) from the simulating signal of D/A converter (510) input, amplify and correction signal (Vout) according to it whether at the second and the 3rd relay (RLY-2, RLY-3) be converted in and be authorized to enter first or second electrode (501,502).If first relay (RLY-1) disconnects, electric current from each electrode only is authorized to by the 4th and the 5th relay (RLY-4, RLY-5) enter the output device (570) of SC signal, be exaggerated from the difference (i1-i2) of the current signal of two determination of electrode, and be authorized to enter A/D converter (420) by SC measurement terminal (504), if first relay (RLY-1) be connect and the 4th and the 5th relay (RLY-4, RLY-5) disconnect, the signal that is recorded by two electrodes only is authorized to enter muscle conduction signal output apparatus (560) so, and, be authorized to enter A/D converter (420) by muscle conductivity measurement terminal (503) through amplifying and filtering.

Or rather, signal through amplification and bias voltage correction is input to second relay chip (RLY-2), the output of described relay chip is input to the 7th relay chip (RLY-7) again, the described second and the 7th relay chip switches the simulating signal that is transfused to off and on according to the switching signal of second relay terminal (RL2) and the 7th relay terminal (RL7), and detects the resistance signal of first electrode.Simultaneously, the simulating signal of described conversion be exaggerated with bias voltage correction after, also be input to the 3rd relay chip (RLY-3), and the output of described the 3rd relay chip is input to the 6th relay chip (RLY-6) again, the the described the 3rd and the 6th relay chip switches the simulating signal that is transfused to off and on according to the switching signal of the 3rd relay terminal (RL3) and the 6th relay terminal (RL6), and detects the resistance signal of second electrode.Because described first electrode that is detected and the signal of second electrode, be bridged by first relay chip, and move according to first relay, described first electrode that is detected and the signal of second electrode and the 5th and the 4th relay chip are connected, and the electrode signal operation of foundation the 5th and the 4th relay, therefore, at the contact point place that the lead-out terminal (NO-1) of the lead-out terminal (N.C.) of described the 5th relay chip and described the 4th relay chip is connected, the difference signal of described first electrode and second electrode is authorized to.Above-mentioned difference signal is connected on another amplifier by impact damper, is detected by the characteristic of above-mentioned amplifier amplifying signal to SC, and inputs to above-mentioned A-D converter.

At last, above-mentioned signal is temporarily stored in EEPROM (420), simultaneously carry out signal Processing by signal Processing and controller (410), and be sent to main frame by transmitter, thereby can regularly detect the human body index, and then can detect computing machine user's pressure state and it is shown by monitor.

Fig. 6 is the detailed circuit diagram of the measurement of bldy temperature parts (600) among Fig. 3.Described in Fig. 6, to be the signal measured by measurement of bldy temperature sensor (THERMIST) (601) with the basic signal that basic signal generator (610) in the comparer (620) generates compare measurement of bldy temperature parts (600) and amplify and specific.Base signal generator (610) comprises that one is connected and the Zener diode (ZD1) in parallel with capacitor (C29) with resistor (R34), a variohm (VR2) that joins with resistance (R35) and another resistance (R36), a comparer (620) of forming by operational amplifier (OP11), a resistance (R37) that is connected to basic signal generator (610) and operational amplifier backward end input terminal, a resistance (R38) that is connected to measurement of bldy temperature sensor (601) and non-return end input terminal, a capacitor (C30), with the resistance (R39) of forming backfeed loop.

Amplifying signal is by comprising variohm (VR3) and resistor (R41, R42) side-play amount adjuster carries out the side-play amount adjustment, and by comprising an operational amplifier (OP12), input pickup resistance device (R40) and a feedback RC parallel circuit (R43, C92) universal amplifier (640) amplifies, input in the A/D converter (420) of signal processor (400) treated measuring-signal then as SC by measurement of bldy temperature terminal (TEMP) (602).

Fig. 7 a to Fig. 7 d is the detailed circuit diagram of pulses measure parts (700).Described in Fig. 7 a, pulses measure parts (700) comprise that an optical transmitting set and receiver (710), first amplifier unit (720), first and second filtrators of describing (730,740) are connected to the output terminal (A) of described first amplifier unit, are connected to terminal C and the 3rd amplifier unit (770) that the output terminal (B) of above-mentioned second filtrator, the trigger circuit (760) described are connected to described second amplifier unit at second amplifier (750) described in Fig. 7 c in Fig. 7 d in Fig. 7 b.

In more detail, shown in Fig. 7 a, one fixedly the light of energy level received by image transistor (PHOTO TR) (702) from the light of described LED emission from the LED (light emitting diode) (701) of optical transmitting set and receiver emission.Here, the brightness of the light of reception changes along with the surface area of the finger that contacts with mouse or pressure, and pressure is along with the pulse of finger changes.Therefore, read from the light of LED emission with pass through the only different of light receiving element.So, can survey pulse easily by reading above-mentioned variation.Resistor R 44 and R45 are bias resistors.

The signal that receives from receiving element (702) is amplified by first amplifier (720), first amplifier comprises an operational amplifier (OP13), and this amplifier input terminal one side links with receiving element (702) by capacitor (C31), bias resistor (R46 to R48), a feedback condenser (C32) of coupling.

Described amplifier unit (720) is to be connected to first and second filtrators (730,740) by terminal A, and the measuring-signal after amplifying, by terminal A, filter by second filtrator (740) that links with first filtrator (730) and repeating resistance (R55), again at once by second amplifier unit (750) amplification by terminal B (with reference to figure 7c) connection.Input on the A/D converter (420) of signal processor (400) of next end points by coupling condenser (C25) and pulses measure sensor (PULSE) (703) then.The input of described second amplifier unit (750) one sides is preferably carried out the side-play amount adjustment by variohm (VR4).Simultaneously, the reason of above-mentioned filtration is will (for example, the 60Hz color lamp) light filters, so that only to the photoresponse of described peculiar wavelength from LED (701) to computer monitor or fluorescent light.

The same with first amplifier unit (720), described second amplifier unit (750) also comprises by coupling condenser (C33) and is connected to terminal B operational amplifier (OP14), bias resistor (R49-R50), RC parallel circuit (R48 and C32, R51 and C34), they have formed a backfeed loop.Yet as above-mentioned, the input end of second amplifier unit, one side is to be connected with side-play amount regulating circuit (VR4).Equally, the first and second above-mentioned filtering circuits (730,740) can comprise resistance (R52-R54, R56-R58), capacitor (C36-C39, C40-C43) and the known amplifier (OP15, OP16) of method.

Simultaneously shown in Fig. 7 d, on the lead-out terminal (C) of above-mentioned second amplifier unit (750), a Schmidt (Schmidt) trigger circuit (760) are provided, so that the light of above-mentioned reception can optionally be measured in fixed time period, therefore, in measured pulses measure signal, qualification exceeds the ripple of predetermined peak value, in (for example, 1 minute) quantity of above-mentioned ripple is counted then at the fixed time, just can have been calculated pulse rate.Shown in Fig. 7 d, schmidt trigger circuit (760) has the pulses measure signal of connection terminal C is amplified signal as the amplifier circuit of importing (C44, R59, Q1), comprise that resistor (R60-R61, C45) is connected with the timer (for example used HAI7555 (U5)) that produces the output of qualification signal, and output itself is amplified by the amplifier circuit (770) that comprises resistor (R63-R64), capacitor (C46) and transistor (Q2) again, is not directly inputted on the input terminal (INTO) of signal Processing and controller (410) by A/D converter then.In order when calculating pulse rate, to remind computing machine user, alarm element in parallel on schmidt trigger circuit (LED, R62) (780).

The operation of the above-mentioned device for pressure measurement of mentioning is described hereinafter referring to figs. 1 through Fig. 4 and Fig. 8 to Fig. 9.Fig. 8 is a structural drawing that relates to pressure recognizer of the present invention, and Fig. 9 is the embodiment that computer monitor screen shows the pressure information of measuring according to the present invention.

At first, when the computing machine user contacts this peripherals with human body (for example, with the right hand holding mouse and respectively during the human body signal survey sensor in the hookup 2), computing machine user's pulse, body temperature, SC value/muscle conduction value adopts pulse, body temperature, SC/muscle conductivity measurement parts in Fixed Time Interval (for example 5 seconds intervals) are measured, and measured pulse, body temperature, SC/human body signals such as muscle conduction value, as shown in Figure 3 and Figure 4, be input on the A/D converter (AD1) by input terminal (CH0-CH3), and be converted into digital value, input in the processor (IC1) of controller (410) by lead-out terminal (Dout) then, be temporarily stored simultaneously in EEPROM (U2), be sent in the main frame (200) by transmitter (800) then.In the signal of above-mentioned transmission, be 4 of each human body signal allocation, also may comprise 16.But because SC compares with the muscle conduction and reflected pressure state better, so the calculating of muscle conductivity measurement and muscle conduction variation factor can skip, and in the case, the signal of transmission comprises 12 data.

Measured computing machine user's pulse, body temperature and SC is measured continuously at interval in a week or one month, and has produced user's normal pressure value.Therefore, this standard value can be different because of the difference at user or age.

The data that are sent to main frame (200) are analyzed by the pressure recognizer in the pressure recognizer storer (230) (with reference to figure 1), Fig. 8 is a structural drawing of pressure recognizer, according to the present invention, the pressure recognizer comprises data processor (231): pulse variation factor (α) data processor (232), body temperature variation factor (β) data processor (233), SC variation factor (γ) data processor (234) and muscle conduction variation factor (γ) data processor (235), and calculating unit (236) and pressure index indicator (237).

Pulse variation factor (α) data processor (232) in human body signal variation factor data processor (231), body temperature variation factor (β) data processor (233), pulse variation factor (α) in SC variation factor (γ) data processor (234) and muscle conduction variation factor (γ) data processor (235), body temperature variation factor (β), SC variation factor (γ) and muscle conduction variation factor (γ) calculate by 4 human body signal data that transmit respectively, for example, it is as follows to be used to calculate specific people's the formula of standard value:

(in the formula, P is 4 a pulses measure value)

(in the formula, T is 4 a temperature value)

Equally, SC and muscle conduction value (γ, δ) are the values in the 0-4095 scope, can manually choose by follow procedure.

Next step, in calculating unit (236), the human body variation factor that calculates with above-mentioned formula and computing method is made up, at last pressure index (ST) is calculated, in order to reflect the importance of each variation factor, weighted value be multiply by separately coefficient and then 2 combinations by formula to actual pressure.[formula 3]

ST=a α+b β+c γ+d δ is (in the formula, a, b, c and d are weighted values) embodiment of the above human body variation factor that calculates, as shown in Figure 9, be exactly the pulse variation factor (α: Pulse), the body temperature variation factor (β: Temp), the SC variation factor (γ: GSR) and pressure index (ST:Stress) be presented on the monitor by pressure index indicator (237).In the preferred embodiment in Fig. 9, because the above-mentioned reason of mentioning, muscle conduction value is not paid attention to.In tonogram, the pressure index that calculates above (ST) has shown interior pressure index and the pressure index in month in the past of week age in the past, can allow the user check the change of current pressure state.

Therefore,, the user is applied a suitable stimulation or show a warning on monitor,, finally alleviate or eliminate user's pressure so that allow the user quit work and cause user's attention if judge the pressure that the computing machine user is faced.

For example, nearest one pressure all or one month is compared, for convenience's sake, state is divided into A condition: normal condition, B state: some pressure status, C state are arranged: more pressure state and essential long-term rest.Under the situation of state B and C, fragrance jetting system (140) is activated automatically, but activation can carry out by follow procedure, so that be 0.2 to state B emitted dose, and is 0.4 for state C emitted dose.

On the other hand, Figure 10 to Figure 17 has shown that another one is applied to preferred embodiment on the computer mouse with automatic pressure recognition device of the present invention.Figure 10 is the click function of a conventional mouse and the circuit diagram of controller, and Figure 11 is the circuit diagram of a SC measurement component, and Figure 12 is the circuit diagram of pulses measure parts.

As described in Figure 10, traditional optical mouse with three-dimensional click function, comprise that has photoemitter/receiver (R101, D101, Q101) and mobile detection signal processor (U101, XT101, C101-C103, Q102) X-Y direction of principal axis moving detector (330), switch parts (340) with three-dimensional conversion input (SW1-SW3), Z-direction moving detector (350) with detection wheel rotation of scrambler (ENC1), one has light emitting diode (D102, the pilot guide (360) whether notice mouse D103) is operated, the transmitter (370) that transmits and receive data between one and the main frame, control above-mentioned with accessory circuit element (R102-R110, C104-C105, D104, XT102) processor chips (IC2).Here, above-mentioned processor chips (IC2) are that the circuit of the signal processor (400) among Fig. 4 is made a chip, and comprise A/D converter and controller or the like, and move and click the control function except X-Y direction of principal axis and Z-direction, it also has the function of detection of skin conduction and pulse rates.Above-mentioned optical mouse is obeyed for example IBM agreement (P/S2).

For the above, processor chips (IC2) send a test signal and go up and A/D converter by processor chips (IC2) receives measuring-signal (referring to Figure 11) from the output terminal (OP10) of above-mentioned SC measurement component (570 ') to the input end (R112) of SC measurement component (500 ').Equally, it receives the detection signal of pulse wave detector (700 ') by the A/D converter in the processor chips (IC2) from terminal C, and receives the comparison signal (described below) (with reference to Figure 11) of the pulse signal that records by the timer in the processor chips (IC2).

SC measurement component (500 ') according among second embodiment of the present invention is described with reference to Figure 11 hereinafter.As shown in figure 11, the ON/OFF signal that produces from the processor chips of signal processor is connected to the cardinal extremity of switching transistor (Q103) and the startup of pilot relay (590) by resistance (R111).

Simultaneously, the signal from above-mentioned processor chips is comprised that the amplifier unit of amplifier (OP1) and resistor (R112, R114) amplifies, and inputs on the terminal (NO_1) of relay (RLY_1) by output resistor (R114) then.The terminal (COM_1) of another and above-mentioned terminal (NO_1) coupling is connected on first electrode (GSR1) (501).On the other hand, with terminal (NO_1, second input/output terminal that COM_1) is complementary (NO_2, COM_2) on, second electrode (GSR2) (502) with output (570 ') link to each other.

Therefore, if the ON/OFF signal of from processor chip is connected, the amplifier unit (530 ') that plays input action links to each other with first electrode (501), and the magnitude of voltage of many voltage tables is applied on the human body, cause that an electric current flows, the magnitude of current is corresponding to computing machine user's SC, second electrode (502) is connected with output (570 ') simultaneously, and therefore detected SC output signal is sent in the A/D converter of signal processor chip (IC2) by the output device (570 ') that comprises impact damper (580 ') and amplifier unit.Output device (570 ') in second above-mentioned preferred embodiment almost is identical with impact damper (580 ') with SC signal output apparatus (570) and the impact damper (580) that Fig. 5 d describes in first preferred embodiment, the formation of circuit component also is identical, is represented by same reference number so have the circuit component of said function.Yet the input end of the amplifier circuit conversion in first preferred embodiment is a ground connection, but the difference only with it of this preferred embodiment is that it is to be connected on the low pressure of a 2.5V.

Next step is described with reference to Figure 12 hereinafter according to the pulses measure parts (700 ') in second preferred embodiment of the present invention.As shown in figure 12, also comprise an optical transmitting set and receiver (710 ') according to the pulses measure parts (700 ') in second preferred embodiment of the present invention, first amplifier unit (720 '), be connected to second amplifier unit (750 ') of the above-mentioned first amplifier unit output terminal (A), be connected to the comparer (790) of the above-mentioned second amplifier unit lead-out terminal.Just, compare with the pulses measure parts (700) in first preferred embodiment, pulses measure parts (700 ') in second preferred embodiment do not use filtrator (730,740), and first amplifier unit (720 ') simply directly is connected on second amplifier unit (750 ').

Optical transmitting set in the pulses measure parts (700 ') in second preferred embodiment is also identical with (710,720,750) in first preferred embodiment with receiver (710 '), first amplifier unit (720 ') and second amplifier unit (750 '), and the formation of circuit component also is identical, therefore, also represent for the circuit component of said function with same label.Yet, the input terminal of first and second amplifier units conversion is a ground connection in first preferred embodiment, but the difference only with it of this preferred embodiment is, they are connected on the low pressure of a 2.5V, and in second preferred embodiment, on the input terminal of second amplifier circuit conversion, there is not to be used for the variohm (VR4) that side-play amount is adjusted.

The output signal of the output terminal (C) of the second above-mentioned amplifier (750 ') also is sent in the A/D converter of signal processor chip (IC2).

The operation of second preferred embodiment of the present invention is described with reference to Figure 14 to 17.Figure 13 is an input/output signal ripple figure of the comparer among Figure 12, Figure 14 is the synoptic diagram that mouse signal is handled, Figure 15 a and Figure 15 b are the structural drawing of the mouse signal data among Figure 14, wherein Figure 15 a is the example that shows the click signal data, and Figure 15 b is the example that shows the anthropological measuring signal data.

Simultaneously, the same with the method for measuring the pulse variation by detected pulse signal, a kind of method that receives human body information in short time interval is arranged (for example, 1/100-1/200 second) and determine that time interval between maximal value and next maximal value is as one-period, but shown in Figure 13 (a), may be because noise have produced upset to ripple.Therefore, as shown in figure 12, comparer (OP101) in the comparing unit (790) and potential difference resistor (R115, R116) have concurrently mostly, like this, if detected signal is higher than reference voltage (Vref), " height " signal is output, if detected signal is lower than above-mentioned reference voltage, therefore the output of " low " signal, be feasible at the digital processing method shown in Figure 12 (b), in this case, even generation noise, pulse counting can not be affected yet, just can obtain coefficient accurately.This digital signal does not need the A/D conversion, and can be authorized to directly be sent on the interior timer of processor chips (IC2).

In Figure 14, the hardware block diagram that is sent to the signal of main frame from mouse about handling has been described.4 signals are gone up (referring to Figure 15) from the device driver (240) that mouse (300) is sent in the main frame.Have 4 signals of two types to be sent on the device driver (240), the type of this data layout is that translate " 0 " or " 1 " by device driver according to its most significant digit.For example, described in Figure 15 a, if most significant digit is " 0 ", the data that sent of device driver (240) identification are as the general click data of mouse so, and convert the data that it can be handled in window writing routine processor (250) to, and window writing routine processor (250) can set remaining 7 as the mouse button state, 8 movement values that each is follow-up as X, Y, Z-direction.If most significant digit is " 1 ", the signal that sent of device driver translation is as human body information and convert data to so, so that can in pressure recognizer processing element (260), handle, pressure recognizer processing element (260) is a kind of application program, it can be set, so that can translate remaining 7 and follow-up 8 (15) respectively as pulse timer measured value, each follow-up 8 is as the electric current and the SC value (with reference to (a) among Figure 15 a) of second electrode.Yet, as first preferred embodiment of the present invention, if plan take temperature and muscle conduction value, and plan pressure to be measured by comprehensive 4 parameters, so after most significant digit remaining 7 can be set at body temperature, and each follow-up 8 is as muscle conduction, second electrode current and SC value, shown in the b among Figure 15.

In addition, the human body information disposal route in pressure recognizer processing element (260) be with first preferred embodiment in identical.That is to say that at first pulse variation factor (α) calculates according to the pulse timer value, SC variation factor (γ) calculates according to the SC value then, and these data combinations are got up, and determines pressure index by formula 4.[formula 4]

ST=a α+c γ (wherein, a and c are weighted values)

In the case, because the SC variation factor has reflected pressure better, preferably get a＜c.And, the human body variation factor of aforementioned calculation, promptly the pulse variation factor (α: Pulse), the SC variation factor (γ: GSR) and pressure index (ST:Stress) be presented on the monitor by pressure index indicator (237).

Referring to the flow chart description of Figure 16 and 17 operation of second preferred embodiment.Shown in Figure 16 is the process flow diagram of the mouse action among Figure 12 to Figure 14, and shown in Figure 17 is the process flow diagram of human body information translation, transmission subroutine.

At first, as described in Figure 16, when mouse action begins (S1), processor chips (IC1) are carried out initialization (S2), as setting mouse timer and variable.Then, restore X-Y direction of principal axis moving detector (330) (S3), pass through axial the moving of 4 phase signals detection X-Y of 2 pulses mixing of X-Y direction of principal axis moving detector then, pass through mobile (S4) of the output detection Z-direction of scrambler (ENC1) then according to the rotation of wheel.

Simultaneously, except the common operation of mouse, mouse of the present invention can also be checked the communication (S5) with computing machine in Fixed Time Interval, if not from the order input of main frame, transmitter sends mouse data so to computing machine (S6), because can be operated under output mode.Yet, different if imported order data with above-mentioned situation, carry out data processing (S7), and the translation among execution Figure 17 and the subroutine (S8) of sending computer user human body information.

The subroutine of translation and sending computer user human body information is described with reference to Figure 17.When human body information translation beginning (S11), the processor of mouse preset time at interval in (for example, 1/100 to 1/200 second) sending filter " on " signal is to SC measurement component (500 '), starting relay (RLY1), and authorize a 1.2V voltage for first electrode (501), and by current signal of second electrode (502) reception, thereby measure the conduction of human body skin, equally, in above-mentioned preset time interval, receive a detected signal by pulses measure parts (700 ') by optical transmitting set and receiver (710).On the other hand, enter A/D converter after these signals are received and carry out digitized processing, controller is translated these digital values, and temporarily is stored in the buffer zone (S12, S13).In addition, in the time of a fixed length, repeat these translations and temporary transient memory phase (S14).Simultaneously, the pulse detection signal is processed into digital value by the comparer parts (790) among Figure 13, direct then incoming timing device, and therefore, pulse can directly be counted in the processor of mouse, and timer value also is translated (S15).Therefore, shown in Figure 15 b, this human body information has formed a kind of structure, and is sent to main frame (S16).Processing subsequently is to be back to S4, so that mouse can recover original click function (S17).In the process of Figure 17, in case buffer zone is taken, mouse sends human body information automatically to main frame, also is feasible but send human body information when obeying the transmission order of main frame.

Shown in Figure 18 to 24c is about using the pressure survey experimental technique and the result data of pressure measuring device of the present invention, to confirm that the pressure measuring value according to pressure measuring device method of the present invention is fully believable.

Figure 18 is the integral experiment test calcspar of pressure survey mouse of the present invention, Figure 19 is the screen of the example of calculating testing stimulus program used during Figure 18 tests, and Figure 20 a and Figure 20 b show respectively is the process flow diagram that calculates test experiments and CPT experimentation, Figure 21 has shown the physiological signal of collecting from experiment, Figure 22 a and Figure 22 b are the examples of questionnaire used in Figure 20, be respectively individual's the psychology and the assessment form of body pressure, Figure 23 a and 23b are respectively the examples of heartbeat number of times and GSR routine analyzer, and Figure 24 a to Figure 24 c has represented respectively to cause heartbeat according to the variation of calculating and CPT experimental period, the example that GSR and skin temperature change.

As shown in figure 18, a susceptibility mouse at first of the present invention (300) and a biopac who has nothing to do with the present invention (920) equipment are connected on the main frame (200), and various human body informations such as PPG, RSP, GSR, ECG, EEG and SKT are calculated.In experiment, the volunteer by with an independent computer monitor (910) stimulation test causes their pressure, goes up according to the MP100WS program in an analytical equipment (930) experiment volunteer's human body information is analyzed (930).

The volunteer of above-mentioned experiment is each 10 people of men and women university student of 20 to 25 years old, provides and guided calculating test and CPT (continuous performance test (CPT)) experiment as the Pressure stimulation thing.In the physiological signal of being surveyed, PPG, RSP, EEG, ECG are the biopac device measurings that has nothing to do with the present invention with, and GSR, pulse signal are measured by automatic identification mouse of the present invention simultaneously, and body temperature passes through thermometer measure.

In order to find out experiment volunteer's practicalness state, psychology and health have been carried out a personals poll.About data analysis, the suitable analysis tool extracting parameter of physiological signal employing to each measurement has obtained pressure index after the analysis.

Calculate method of testing, as one of a kind of Pressure stimulation method, be a kind of method that reflects the ISO10075-2 standard, and be a kind of, utilize this program by the program of JUN-BUK university Institute Of Electrical Engineering with Visual Basic exploitation, the volunteer only needs simply the numeral that is presented on the screen to be added up, if the result be presented at screen on digital identical, they will be by foot-switch remote control buttons 1, if difference as a result, they will be by foot-operated knob 2, and the time is in 3 seconds.Be 15 minutes three bit digital in addition, the halfhour altogether Pressure stimulation of 15 minutes 4-digit number.An example that calculates testing stimulus is presented among Figure 19.

CPT (continuous performance test (CPT)), as another method of Pressure stimulation, propose in 1956 by " Rosvold ", be used to detect the notice loss of suffering from less epilepsy patient, the requirement of sustained attention power obtains utilizing in this research, because can cause stress in experiment.A numeral of from " 0 " to " 9 " is presented on the screen randomly in p.s., in a single day " 0 " in the numeral appears on the screen, and the volunteer must and continue counting by foot-operated knob.Line frequency at computing machine is under the situation of 70HZ, and the time set that numeral shows is 29 milliseconds.The number of times that " 0 " shows is 120 times in 480 times demonstration sum.Test result is calculated by the ratio (%) of the stimulation that current stimulation and volunteer feel.In the case, the participator is compared, relatively poor if notice is concentrated, then the ratio of correct option is just very low, so the data in the error range of CPT ± 10% are identified as effective notice, and among being used for analyzing.

Be to prepare in the individual schedule of the pressure aspect psychology and health by the 7 dimensional analysis systems of counting, the existing theory of reference and " the psychological yardstick handbook " compiled by the human behavior science research centre (BehaviorScience Research Center) of Korea University are shown in Figure 22 a and 22b.

Physiological signal sampling frequency by the Biopac Equipment Inspection has been set at 512Hz.And once by the per storage in 1 second of the physiological signal of automatic pressure identification mouse.According to the reading of thermometer, the temperature per minute writes down once.

Physiological signal is detected from 20 experiment volunteers, and identical volunteer stimulated with calculating test at first day, stimulated with CPT in second day.

Physiological signal detection time and experimental procedure are undertaken by Figure 20 a and Figure 20 b.Shown in Figure 20 a, at first, explained the step (S21) of experiment purpose and calculating test experiments, adhere to and also regulate electrode (S22), detect the physiological signal (S23) under the steady state (SS), require the questionnaire (S24) under the written reply steady state (SS).Next step, the task exercise and the reaction (S25) of exerting pressure, have a rest (S26) carries out actual job (S27) after 5 minutes, require to fill in the questionnaire (S28) of pressure state then.

Simultaneously, shown in Figure 20 b, in the CPT experiment, at first, explain the step (S31) of experiment purpose and calculating test experiments, adhere to and also adjust electrode (S32), detect the physiological signal (S33) under the steady state (SS), require the questionnaire (S34) under the written reply steady state (SS).Next step, the task exercise and the reaction (S35) of exerting pressure, have a rest (S36) after five minutes, carries out actual job (S37), requires the questionnaire (S38) of written reply pressure state then.

(a) among Figure 21 described representative physiological signal to (e), is respectively PPG, RSP, GSR, EEG, ECG signal in order.

Consider whole experimental period, about the Pressure stimulation time, the method that calculate to stimulate is 30 minutes, and the CPT method is eight minutes, thus with the passage of time as a pressure factor with influence under the hypothesis of physiological signal, 30 minutes calculating testing stimulus data have been collected, by per 3 minutes one section be divided into 10 data segments, and analyze, collected 8 minutes CPT data, by per 1 minute one section be divided into 8 data segments, and analyze.Therefore, in Time Calculation testing stimulus data, can observe the variation of per 3 minutes physiological signal, and in the CPT stimulus data, can observe the variation of per 1 minute physiological signal according to passage.Here, the difference of calculating between testing stimulus data and the CPT stimulus data is, in calculating test, stimulation time is 30 minutes, time is longer, and in CPT, the time is shorter, it is 8 minutes, and the calculating test is a simple mental arithmetic test, so volunteer's meeting adaptation stimulation after the time of a fixed length, but in CPT, the higher grade that stimulates, and the fatigue of eyes can increase along with the past of time.

In this experiment, " Labview " program that is used for data analysis.The data processing of this program and database structure are easily, and all processes can comprise graphic package, so it not only is used for the field that physiological single processing is analyzed, and is widely used in other field.

In ECG, heartbeat to be analyzed as a variable, the variation of heartbeat is recently represented with a percentage with respect to steady state (SS).This is because standard state becomes because of the people, so can not come comparison several people's data with a simple absolute figure.Figure 23 a has described the heartbeat calculation procedure.

GSR has shown the overall variation tendency of electrodermal response, as a kind of index the grade of stomodaeal nervous system is described, can analyze by observing a general trend in the time range.In this research, found the averaged amplitude value of GSR, and represented with percentage with respect to steady state (SS).Figure 23 b has described employed GSR program in experiment.

Analyze EEG by frequency analysis, frequency range be divided into δ ripple (4Hz following), θ ripple (4～8Hz), α ripple (8～13Hz), β ripple (greater than 13Hz), found the performance number in each scope then, and calculate α/(alpha+beta), to represent with respect to the percentage of steady state (SS) in each time domain.

Using RSP to measure breathes, chest muscle shrinks and expansion when breathing, by detecting along with chest muscle changes the measurement that the resistance variations that produces is breathed, by analyze suck and breathe out during the number of times of crest value or breathing observe because the breathing rising that pressure causes.In this experiment, found out respiration rate and represent with percentage with respect to steady state (SS).

When sympathetic nerve enlivened, skin temperature was because the contraction of blood vessel has downward trend.The skin temperature data also are to represent with the percentage with respect to steady state (SS).

About the data that obtain from the personals poll, selected the counting of each volunteer averaged, and steady state (SS) and stimulation state are compared.

Investigation result is analyzed, whether be fit to induce pressure with the stimulating method of checking this experiment, in 12 problems about stress in calculating test, except " the brains sensation easily " and " being fed up with ", remaining problem is rapider than changing before stimulating after stimulation, in 13 problems about body pressure, except " eyelid spasm ", " feeling sleepy " and " eye fatigue ", remaining problem is rapider than changing before stimulating after stimulation.Under the situation of calculating test, detecting the steady state (SS) used time of physiological signal is 10 minutes, at this moment between in, a people stares at a place, he or she can be fed up with before stimulating receiving like this.Equally, in 30 minutes calculating test, a people constantly stares 4 bit digital on the screen and carries out mental arithmetic, so have the motion of some eyes, why eyes can lack some fatigues as can be seen.

In addition, be specifically noted that such fact, aspect stress, " feeling uneasy ", " feeling to enrage ", " indignation becomes " have very big variation, aspect body pressure, " shoulder is painful ", " feeling dry ", " arms and legs is painful " have very big variation.This shows that calculating test makes the experiment volunteer produce pressure really, this means that they will be used as other index of pressure stage so if found variation according to the physiological signal of time lapse.

In the CPT test, for stress, except " being fed up with ", remaining problem is rapider than changing before stimulating after stimulation.For body pressure, except " feeling sleepy ", remaining problem is rapider than changing before stimulating after stimulation.Reason behind " being fed up with " and " feeling sleepy " person's back can be explained with same reason in testing with calculating.But, " the eyes impression is tired " result before and after stimulating, in calculating test and CPT stimulates is different, its reason is to calculate in 30 minutes of test, and the volunteer watches screen and 3 of mental arithmetics, 4 bit digital, eyes tired less, but under the situation of CPT, stimulation itself is a numeral of differentiating flicker immediately within a short period of time, makes eyes produce more fatigue, Here it is why CPT stimulation meeting more increase the weight of the reason of eye fatigue than steady state (SS).

For calculate and the average percentage rate of change graphic presentation of the heartbeat number of times that CPT tests in Figure 24 a.Each value representation in the figure is with the heartbeat number of times of the steady state (SS) before the stimulating percentage recruitment as reference, its heartbeat number of times is compared with steady state (SS) between stimulation period as can be seen total raising amount.Calculating under the test case, 18 minutes mark, finish, and the second level (4) when stimulating beginning when the first order (3) stimulates, the difficulty of test increases, and the heartbeat number of times has the maximum trend that is increased to as can be seen.Equally, in the CPT testing stimulus, there are some increases the starting stage, and maximum the variation is presented at 6 minutes mark.This can illustrate has some increases owing to anxiety than steady state (SS) when stimulating beginning, after after a while, the people has adapted to stimulation, feels bigger psychological burden then along with the passage of more time.

So according to the variation of heart rate, pressure has been divided into 1,2,3 three section.At first, under the situation of calculating test, will be set at the 3rd stage pressure as the maximum pressure of the 18th minute mark of the second level (4) starting point, the 2nd stage and the 1st stage force value are made as 50% and 25% of the 3rd stage force value respectively.Under the situation of CPT test, the maximum pressure of the 6th minute mark is set at the 3rd stage pressure, and the setting of the 2nd stage and the 1st stage force value and calculating testing setup is identical.In other words, steady state (SS) is set at reference value, the same with table 1 when heartbeat increases, pressure is divided into the different stages respectively.

Next step is analyzed in the GSR experiments of measuring, has carried out a period of time although calculate test, because the characteristic that stimulates, it is continuous being difficult to imagination pressure, and along with the past of time, the experiment volunteer has shown and adapted to the characteristic that stimulates.So the deduction of GSR has demonstrated and has descended rather than increase.Stimulate as CPT, although the time is very short, owing to repeat to provide same stimulation, it is tired that eyes can become, and the nervous trend that shows can descend.The average GSR reaction and display of two kinds of stimulations is in Figure 24 b.Yet, total observation we can say the variation of GSR (SC) reflected the volunteer bear pressure change than other health good.

In calculating testing stimulus, the maximum variation when appearing at the first order and stimulating beginning, when the 18th minute mark, when other difficulty of level increased, changing had increased very most ofly again, and this is the reaction that the second level (4) are stimulated.Equally, under the CPT test case, the maximum variation appears at when stimulating beginning, descends as time goes by.Therefore, under the situation of GSR,, the 3rd minute mark was set at for the 3rd stage, and the 18th minute mark was set at for the 2nd stage with calculating test as a reference.Stage 1 is set at 50% of the stage 2.For CPT, first 1 minute is set at the stage 3, and 50% and 25% value of the 3rd Stage Value is set at the 2nd stage and the 1st stage, and gathering of result is presented in the table 2.Although these are not found at identical point as the variate-value that the heartbeat number of times changes, the different reaction to identical stimulation also can be described.

Know that skin temperature descends under pressure state, and cause in fact being verified of skin temperature decline owing to stimulating in this research, the overall variation of its mean value is presented among Figure 24 c.Under the situation of calculating testing stimulus, because it is not unexpected stimulating, skin temperature has been along with the past of time has shown slow downward trend, and under the situation of CPT testing stimulus, because the time of data aggregation is shorter, downward trend does not show significantly.But relatively each volunteer is very large in each person-to-person variation.This is that the variation between people is very big because skin temperature can change according to the susceptibility of environment temperature and individual's skin temperature variation.

Under the situation of EEG, because decreased attention and nervous increasing, in the α of brain wave ripple and β ripple, the α ripple descends in proportion owing to this influence, this has confirmed to have applied psychology and body pressure by calculating and CPT stimulation, but, in the variation of variable, there is not significant difference along with the past of time.

Under the situation that test is breathed, when since pressure or the nervous stimulation that produces when putting on stomodaeal nervous system, can see and breathe the phenomenon that increases, in this research, observed the increase of breathing, still, do not find significant difference in shape in variation.

By this research, verified when pressure is applied in, the variation of the variate-value of physiological signal shows below, found at the heartbeat number of times and basis that the GSR in changing changes on other index of expression pressure stage.

At first, analyzed investigation result, observed whether employed stimulating method is suitable for producing pressure in this research.About being used in psychology and the body pressure questionnaire that calculates in testing stimulus and the CPT stimulation, rank wherein has very big variation before stimulating after stimulation.That is to say that if the verified variation that can find along with the physiological signal in past of time, they can be as other index of expression pressure stage so.

The second, not only each one skin temperature changes greatly, and the variation of larger proportion is arranged owing to the susceptibility of environment temperature and the variation of each one skin temperature.Therefore, the setting of reference value is difficulty relatively, although by the α ripple of brain and the observation of respiration rate have been confirmed that the volunteer is under pressure state, and the trend of neither one consistent variation still along with the variation of time.

The 3rd, by analyzing heartbeat number of times and GSR number, can find out owing to calculate the pressure index value that testing stimulus and CPT stimulate, when the pressure rank is divided into three phases, can calculate the physiological signal variable of representing stages respectively percentage rate of change by formula 5 with respect to reference value.[formula 5]

Pressure rank 1:HR=103 * HR _RefOr GSR=127 * GSR _Ref

Pressure rank 2:HR=105 * HR _RefOr GSR=154 * GSR _Ref

Pressure rank 3:HR=109 * HR _RefOr GSR=183 * GSR _RefIn the formula, HR has set the reference value of calculating testing stimulus, uses by the exponential average of calculating and the CPT stimulation obtains and has found GSR.Equally, ref is the initial value that the volunteer enters the stimulation state, for each one significant difference is arranged on absolute value, so as the reference value of setting each one, and by this value measurement variation.[table 2]

	Step 1	Step 2	Step 3
	Step 1	Step 2	Step 3	Calculate testing stimulus	102.43％	104.86％	109.72％
CPT stimulates	101.96％	103.92％	107.84％	Calculate testing stimulus	102.43％	104.86％	109.72％

[table 2]

	Step 1	Step 2	Step 3
	Step 1	Step 2	Step 3	Calculate testing stimulus	132％	164％	178％
CPT stimulates	122％	144％	188％	Calculate testing stimulus	132％	164％	178％

[industrial applicability]

According to previously described, according to automatic pressure identification ancillary equipment of the present invention and computed pressure-measuring system, by in the ancillary equipment that has had, inserting a simple circuit, make this ancillary equipment can automatically measure multiple human body information and detected pressures or tired rank, thereby can offer the data that computer user is used for alleviating or eliminating pressure.

Claims

1, a kind of computed pressure-measuring system, comprise: but the computer peripheral (300) of the human body information measurement component of metering computer user's human body information, one is used to handle the equipment (400) of the above-mentioned human body information that records, and a kind ofly is used to send the equipment (800) of the human information signal of above-mentioned processing to main frame; And the main frame (200) that is equipped with the pressure recognizer, calculate the human body information variation factor and come the calculating pressure index from the human information signal of above-mentioned transmission by respectively above-mentioned coefficient and calculated value being set weighted value.

2, the described pressure-measuring system of claim 1, wherein above-mentioned human body information measurement component comprise at least one SC measurement component and pulses measure parts.

3, the described pressure-measuring system of claim 2, wherein said human body information measurement component also comprise measurement of bldy temperature parts and muscle conductivity measurement parts.

4, the described pressure-measuring system of claim 1, wherein said signal handling equipment comprises that is used for the equipment (420) that A/D changes the human body signal that is detected, with an equipment (430) and a controller (410) that is used for temporarily storing the human body signal information that is detected.

5, the described pressure-measuring system of claim 1, wherein said pressure recognizer also comprises a pressure index indicating device, can show the pressure index that is calculated.

6, the described pressure-measuring system of claim 1, wherein: described main frame is except the window writing routine processor (250) with I/O of handling multi-purpose computer, also comprise a pressure recognizer processor (260), described main frame also is equipped with a device driver (240), when data when peripherals is imported, if the input data are human body information data, will import data-switching to pressure recognizer processor (260).

7, the described pressure-measuring system of claim 1, wherein said computer peripheral are the mouses that computing machine uses.

8, a kind of computer peripheral (300), comprise: the human body information measurement component that is used for metering computer user's human body information, the equipment (400) that is used for the above-mentioned measured human body information of signal Processing, with an equipment (800) that is used to send human information signal that above-mentioned signal Processing crosses to main frame, wherein: described human body information measurement component comprises a SC measurement component (500; 500 ') and pulses measure parts (700; 700 '); Described SC measurement component comprises and is used to authorize first electrode (501) of test signal to skin, be used for from skin induction human information signal's second electrode (502), be used to export the signal sensed from second electrode follower (570 to signal processor (400); 570 '); Described pulses measure parts comprise an optical transmitting set and receiver (710), be used to amplify and export the amplifier unit of detected signal, be used for reference voltage (Vref) and described amplifying signal compared and signal digitalized comparer parts (790) with its counting to signal processor.

9, the described computer peripheral of claim 8, wherein said computer peripheral has a click function, is a checkout equipment that the X-Y direction of principal axis moves.