CN1745711A - Multi-media multifunctional biological feedback device - Google Patents

Abstract

A computer multimedia type multifunctional biologic feedback apparatus for directing the feedback training and relax training of a trainee in order to treat its diseases and take care of its health features that it can automatically judge the variation of the trainee in physiological state during the training and prompt the trainee in multimedia mode (image, sound, etc).

Description

Multi-media multifunctional biological feedback device

Technical field

The present invention relates to a kind of biofeedback training and relaxation training guiding device of PC type, relate in particular to a kind of computer multi-media type, have physiological status change in automatic judgement and the prompting trainer training process, carry out the biofeedback training of physiological signal feedback and the new device that relaxation training instructs with colourful image acoustics and multiple amusement device.This device can be widely used in various types of somatopsychic illness treatments and health care.

Background technology

Individual's pressure is excessive, mental pressure is admitted by most of scientists above the fact that certain load may cause multiple metabolic disease and somatopsychic illness, studies confirm that: adopt scientific and effective relaxation training to help to alleviate individual tense situation, alleviate individual's mental pressure, thereby reduce the excessive multiple disease that causes of pressure significantly.

The effective relaxation training method that is confirmed by a lot of clinical researches is a biofeedback training, and by understanding own intravital various physiological activity states, the physiological status that association draws oneself up is alleviated individual's tense situation to user when carrying out relaxation training.

Biofeedback is a kind of advanced person's a behavioral medicine therapeutic modality, and the trainer is by the immediate feedback of own physiological signal, and association regulates and control individual's physiological parameter, thereby regulates individual's physical and mental statuse better.Can be used for multiple health purpose and therapeutic purposes, by modern medicine turn out to be a kind ofly have no side effect, respond well behavioral medicine therapeutic modality.

A lot of developed countries such as the U.S. very widely the applying biological feedback at multiple fitness programme, and the diagnosis of various clinical disease and treatment, American National medicine and food control office have also ratified biofeedback system and have used the various clinical prevention and treatment of diseases.

Although biofeedback training is the crystallization of modern behavioral medicine and modern biological project, represent advanced society-psychology-biomedical model, but some weakness of biofeedback system itself have seriously hindered the popularization of biofeedback training method, universal and application widely.

Advancing by leaps and bounds of computer technology, for the development of biofeedback apparatus and technology provides wide platform and good development space, at present several companies of the U.S. to have developed several functionalities powerful, broad-spectrum biofeedback isolated plant.These devices must cooperate specialized hardware and equipment to use, and price is extremely expensive, is difficult to popularization and application.And common defects that these devices exist are, instant physiological status prompting in the process that lacks training does not have clear and definite indication to the change degree of trainee's physiological status, thereby the trainee can not be known understand the levels of precision of own physiological status variation.Thereby can not give full play to positive surface strengthening in the behavioral medicine principle, the instant ultimate principle of strengthening, the effect of influence training.In addition, also there is following inferior position in these devices:

1) the prior biological feedback device only has the direct feedback signal of bio signal, and user must ownly be judged degree and the state that oneself loosens from the acousto-optic feedback signal.This determination methods was both inaccurate, also can disperse the attention of user and influenced the effect of relaxation training.

2) in biofeedback training,, also install the achievement of reminding or encouraging user to obtain, the effect that the obvious minimizing behavior of meeting is strengthened because user can not definitely be understood the training effect.Thereby violate the basic principle of behavioral medicine, the curative effect that reduction should obtain.

3) user is in biofeedback training, owing to can not definite quantitative understanding oneself train effect that is obtained and the progress that obtains, thereby be unfavorable for that the Guidance Counselor is that user is worked out long-term training program, can not utilize accurately that feedack improves training method in the training.

4) prior biological feedback device training method is uninteresting and dull, do not have recreational and entertainment content, lack interest, competitiveness and complexity, user is difficult to adhere to for a long time, some edge customer may not can be interested in initiatively to use, thereby has limited popularizing and promoting of this method.

Therefore, a kind of relaxation instructing device that can provide fast, confirm the biofeedback training effect accurately, easily is provided, suitable guidance is provided in biofeedback training, and allow user definitely understand the relaxation state of oneself at any time, and with the training before correlated effect, can make the training effect better, more remarkable treatment effect.

Simultaneously, by above-mentioned device, with intensity of variation before and after physiological status and the mental status in the user training, be converted into instruction, drive multiple devices such as various amusement device, game device, telecontrol equipment, contest device, allow user when health is trained, obtain amusement and enjoyment, reach health purpose simultaneously in amusement and enjoyment.Such device may attract more people to adopt biofeedback training to reach healthy and prevent, treats the purpose of disease.

Summary of the invention

Can not point out the human body relaxation state in order to overcome prior biological feedback training device, accurately training of judgement changes and clinical effectiveness, training method dullness, uninteresting shortcoming, the present invention proposes a kind ofly novelly to have automatic prompting and breathe analog functuion, adopts the computer multi-media mode to provide that form is abundant, the training devices of interesting biofeedback.This novel biofeedback training device can change and the change of monitoring human relaxation state by the physiological signal of monitoring human, has automatic prompt facility, regularly points out the trainer current relaxation state, and the change result who compares with state before the training.When the trainer fails to reach the relaxation state of expectation, automatically play with the computer multi-media form and breathe analogue signal, instruct the trainer to improve relaxation state by respiratory depth and the respiratory frequency of adjusting the individual, and the change of the relaxation state before and after the trainer being trained result is converted into instruction, drive and control the operation of multiple devices such as multimedia device, amusement device, telecontrol equipment, contest device, the interest of increase biofeedback training and recreational.

The technical scheme that technical solution problem of the present invention is adopted is, adopt physiological signal collection, amplification, conditioning device, data acquisition unit, computer interface unit, computer and multimedia device thereof and be specifically designed to acceptance, processing, analysis, contrast, calculate and the special-purpose software of control physiological signal makes up computer multi-media type biofeedback training and relaxation training guiding device.Said apparatus compares with the physiological signal of gathering in real time by adopted base-line value and to calculate multiplication factor in running.The degree that on behalf of the trainer, multiplication factor train front and back physical and mental statuse or relaxation state to change.Corresponding with multiplication factor, as to preset voice suggestion, or show with multiplication factor rank and labelling trainer real-time physical and mental statuse or degree of relaxation are pointed out, instruct the trainer to train automatically.Within the predetermined time, if the trainer fails to reach the multiplication factor rank of expection, the purpose that training is described fails to reach, at this moment, play the breathing analogue signal by computer multi-media in the mode of image and sound equipment, instruct the trainer to adjust respiratory depth and frequency and more effective adjustment physical and mental statuse and reach and loosen purpose.In addition, the multiplication factor rank also can be converted into impulse form and be converted into pulse signal, directly drive and control various amusement devices by numerical control device, perhaps digital signal is directly changed into analog control signal by the D/A change-over circuit, directly control various amusement devices or telecontrol equipment, to increase the interest of biofeedback training and relaxation training, improve the effect of training.

Technical characterictic of the present invention is, device of the present invention is by physiology signal acquisition device, signal amplifies, conditioning device, data acquisition unit, computer interface unit, with physiological signal input, signal processing, signal analysis, calculating, correlated dedicated computer software, and computer and the complete system of multimedia device formation, finish multiple physiological signal collection, regulating physiological signals, amplification, the A/D conversion, signal input, processing, analysis, contrast, multiple functions such as various ways biofeedback, prompting automatically, Self-breathing simulation.

Technical characterictic of the present invention is, physiology signal acquisition device in apparatus of the present invention, form by multiple physiological signal sensor, include but not limited to the various sensor devices that are used for the physiological signal collection such as electrocardioelectrode, electrode for encephalograms, electromyographic electrode, skin electricity electrode, photoelectricity volume pulse transducer, pressure type pulse transducer, pressure type respiratory frequen, temp. type respiratory frequen, temperature sensor, inflated type pressure transducer, intravaginal special pressure pick off.These sensing devices can accurately be gathered physiological signal, and various physiological signals are converted into the signal of telecommunication, further handle.

Technical characterictic of the present invention is, signal amplification in apparatus of the present invention, conditioning, A/D conversion, and computer interface unit can adopt the universal data acquisition board of universal physiological signal preamplifier and computer interface to constitute.The high-performance bioelectric amplifier that universal physiological signal amplifier can adopt the multichannel height to touch rejection ratio altogether makes up, the universal data acquisition board that comprises the computer interface circuit then can select directly to patch the DAQ plate on the PC base plate, or the DAQ plate of employing band USB interface, or the DAQ plate of employing band RS232 interface, also can select for use and comprise the bioelectrical signals amplification, conditioning, the A/D conversion, the incorporate isolated plant of computer interface, to finish multichannel, the amplification of dissimilar physiological signals, conditioning, the A/D conversion, signal exports the function of personal computer to.

Technical characterictic of the present invention is that the computer apparatus of using in apparatus of the present invention can be a desktop personal computer, notebook computer, palm-type computer, Industry Control formula computer, monolithic computer, single-borad computer or other forms of computer apparatus.These computer apparatus are equipped with supporting multimedia accessory, for example, and sound card, video card, loudspeaker, microphone, earphone, Light-Emitting Diode, display screen etc.Above-mentioned computer apparatus and multimedia accessory all are universal, the conventional devices of using, and outside being used for the purpose of apparatus of the present invention, also can be used for other purposes that common computer is used.Also can adopt the special part specialized designs.

Technical characterictic of the present invention is that application specific is used to finish the computer software of physiological signal input, signal storage, signal processing, signal analysis in apparatus of the present invention.This software can be the special-purpose software that designs voluntarily, and the universal physiological signal application software of also can use various physiological signal inputs, handling, analyze, export is to reduce up-front investment and to reduce cost.

Technical characterictic of the present invention is in apparatus of the present invention, to use baseline value as the correlated basis of various physiological signals.The acquisition of baseline value can be gather the trainer train before several minutes physiological signal mean values, obtain in the time of also can be by the former training of Guidance Counselor.In training, in case when physiological signal numerical value touches baseline value, all can trigger the biofeedback of various ways.

Technical characterictic of the present invention is to adopt multiplication factor to represent the degree that trainer's physical and mental statuse changes and relaxation state changes in apparatus of the present invention.The acquisition of multiplication factor is to obtain divided by baseline value with instant physiological signal numerical value.Multiplication factor adopts multiplication factor rank and labelling to represent, different multiplication factor ranks is corresponding with the different suggestion content that presets, when multiplication factor arrives a certain degree, automatically prompting feeds back to the trainer with language and image mode, points out trainer physical and mental statuse and degree of relaxation at that time.

Technical characterictic of the present invention is, at the fixed time, the trainer fails to reach predetermined multiplication factor rank, represent current training not produce Expected Results, device can be by the computer multi-media device with language and image mode, automatically play the simulated respiration signal, require the trainer to copy the simulated respiration signal to train, to adjust trainer's physical and mental statuse and degree of relaxation.The rank of the frequency of simulated respiration signal and the degree of depth and multiplication factor is linear, and the multiplication factor rank is more little, and respiratory frequency is slow more, and respiratory depth is dark more.

Technical characterictic of the present invention is, uses the computer multi-media device in apparatus of the present invention, and with rich and varied, vivid multiple image, sound equipment mode are implemented biofeedback.The presentation content that is used for biofeedback can be by video display CD, and the DVD playing device is play, and perhaps plays the fragment image of montage in the video file mode, or shows synthetic chromatic image with image file; And the sound equipment content of biofeedback can adopt digital music instruments interface (MIDI) to produce automatically, or adopts the audio file mode to deposit recording substance, or play-overs audio frequency CD.The image, figure, the sound equipment content that are used for biofeedback can freely be selected according to different biofeedback needs.

Technical characterictic of the present invention is, device of the present invention can be converted into output order with trainer's multiplication factor rank, controls directly or indirectly that other are travelled, amusement, contest, telecontrol equipment.Can adopt instruction is changed into analog control voltage signal, driving and controlled motion control circuit, drive and control various devices indirectly, also can directly control various digital switch with the digital signal output form, or by the output digit pulse, the mode of control step motor is controlled all kinds of devices, this with state of consciousness control travel, the form of amusement, contest, telecontrol equipment can increase the interest of biofeedback training, the residence amusement improves the effect of training in health.

The invention has the beneficial effects as follows that providing a kind of can provide fast, confirm accurately, easily the relaxation instructing device of biofeedback training effect, suitable guidance is provided in biofeedback training, and allow user definitely understand the relaxation state of oneself at any time, and with the training before correlated effect, can make the training effect better, more remarkable treatment effect.

Simultaneously, by above-mentioned device, with the degree that changes before and after physiological status and the mental status in the user training, be converted into instruction, drive multiple devices such as various amusement device, game device, telecontrol equipment, contest device, allow user when health is trained, obtain amusement and enjoyment, reach health purpose simultaneously in amusement and enjoyment.Such device may attract more people to adopt biofeedback training to reach healthy and prevent, treats the purpose of disease.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples:

Fig. 1 is the Single Chip Microcomputer (SCM) system hardware block diagram

Fig. 2 is a plurality of Single Chip Microcomputer (SCM) system hardware block diagrams

Fig. 3 is the Single Chip Microcomputer (SCM) system program flow diagram

Fig. 4 is multiplication factor and voice suggestion contents table

Fig. 5 is multiplication factor and simulated respiration frequency meter

Fig. 6 is a multimedia type bio-feedback arrangement structure chart

The specific embodiment

Embodiment 1. single-chip microcomputer biofeedback training devices

One. system design scheme

(1) system forms

1. physiological signal collection and amplification module (signals collecting subsystem)

● comprise biosensor and electrode amplifier

● the biosensor type

Passage 1A photoelectricity pulse transducer, as pulse contour analysis, fixed position is at finger or ear-lobe; Passage 1B pulse pressure formula pick off, as pulse contour analysis or pulse counting, fixed position is at the hands wrist; Passage 2C myoelectric sensor is measured electromyographic signal, and fixed position is at arm, forehead; Passage 3D brain electric transducer is measured EEG signals, and fixed position is in forehead, mastoid process; Passage 4E skin electric transducer is measured the skin signal of telecommunication, and fixed position is in the wrist inboard; Passage 5F skin temperature transducer is measured skin temperature, and fixed position is at finger, wrist, forehead; Passage 6G respiration pickup is measured respiratory frequency and cycle, and fixed position is at the nose downside; Passage 7H pressure transducer is measured blood pressure, and fixed position is at finger, hands wrist; Passage 8I oximetry sensor, blood oxygen saturation, fixed position is at finger, ear-lobe.

● all the sensors all is designed to pick off+amplifier.The signal that is all the sensors can be directly connected to A/D converter after amplifying

● before system schema is determined, pre-determine various sensor types.

2. physiological single processing module (signal processing subsystem)

● signal processing adopts Chip on system chip.Comprise the A/D conversion, CPU, internal memory (RAM and ROM), D/A conversion, keyboard drive and display driver structure.

● bear whole tasks with the highest integrated integrated package.As far as possible hardware configuration is improved, reduce the program development time.

● according to the processing in different ways of different physiological signals.Product may need multichannel (a plurality of A/D input), and every kind of physiological single processing adopts a kind of interrupt source (external interrupt), and different physiological single processing needs different software programs, should adopt different countermeasures according to different situations.

● during program development, can consider to adopt the subprogram building mode.Subprogram may comprise: (acousto-optic shows and pulse output), display driving, speaker are exported in A/D conversion, scale conversion, digital filtering, waveform analysis, counting, data contrast, physiological signal output (acousto-optic demonstration), cue or speech chip drives, the keyboard input

● in above-mentioned subprogram, A, E, G, H, I, J, K subprogram are general character, and B, C, D, F are individual character, and some control sequence needs, and some does not need.

● so when programming, divide subroutine module to write.Long-pending piece formula makes up, unified debugging.

● the hardware configuration unanimity can not change.

3. input, output module (input, output subsystem)

● input, output module are to extend on the COS basis.

● input module: be mainly selector switch, desired value input, can consider to adopt mature modules, reduce the development time.Selection can directly be connected the input keyboard matured product on the COS chip.

● output module: be mainly display and speaker.

Display can be selected the matured product of liquid crystal display → employing band drive circuit.

The matured product of the model that the speaker selection can cooperate → employing band drive circuit.

4. interface circuit and module (interface circuit subsystem)

● divide input interface and output interface

● input interface needs to be connected with multiple biosensor, and has variable connector selective.

● input interface comprises (according to different needs, can select): the standard interface (interface that is connected with single-chip microcomputer) that links to each other with game paddle, the interface (USB interface) that links to each other with computer, and PDA connecting interface.

(2) Single Chip Microcomputer (SCM) system hardware block diagram (Fig. 1)

Utilize 8 tunnel analog input channels of ADUC812 microprocessor respectively eight kinds of physiological signals such as pulse wave, breathing, myoelectricity, skin electricity, brain electricity, electrocardio, blood oxygen saturation and blood pressure to be detected respectively, adopting diode light beam and speaker is that time, sound show to physiological signal, simultaneously different physiological signals is analyzed, calculates, is shown, with the result adopt USB interface with transfer of data to host computer or directly send instruction by USB interface or other interface control executing mechanism constitute that a multichannel physiological signal detects automatically, demonstration, regulator control system.

A plurality of Single Chip Microcomputer (SCM) system also can connect with host computer respectively by serial port, form master-salve distributed structure, on slave computer, finish collection, processing, demonstration, setting, judgement, prompting, control, output and the communication function of data, on host computer, finish the physiological signal demonstration that multisystem is concentrated, preset functions such as initialization value, prompting, analysis and calculating, making, printing, storage.A plurality of Single Chip Microcomputer (SCM) system hardware block diagram (see figure 2)s.

(3) microcomputer and interface are selected

1) microprocessor is selected the ADUC812 microprocessor of ADI company.

2) system constructing employing ADUC812 is a core, makes up special circuit plate and interface circuit.

Two. the hardware designs of control system

(1) microprocessor

Integrated 8 tunnel 12 ADC acquisition systems in the single chip of ADUC812,2 tunnel 12 DAC, 80c52 MCU kernel, 8KB flicker/electric erasable memory under program, 640 byte flicker/electrically erasable data memories, WatchDog Timer, 640 byte flicker/electrically erasable data memories, WatchDog Timer, current monitor, 12c SPI and UART serial i/resources such as O module.

(2) with the supporting circuit of microprocessor, comprising: main circuit board, crystal oscillator and shake charged road, power supply and circuit thereof, keyboard and drive circuit thereof, liquid crystal display, diode light beam, speaker.

(3) memory

1) the 64KB memory under program adopts the memory under program of 64KB electric erasable

2) data memory adopts the data memory of 16MB.

(4) input channel

System adopts the input of 8 tunnel analog quantitys.ADUC812 itself has input of 8 tunnel analog quantitys and multicircuit switch, directly does interface at AINO～AIN7,8 tunnel analog input interfaces.

(5) output channel

1) analog output channel

ADUC812 itself has two road DAC output, adds drive circuit, can constitute diode light beam and speaker delivery outlet.

2) digital quantity output channel

Dispose 4 road digital quantity output channels, can gauge tap, actuator such as motor.

3) USB interface

Configuration USB-100 integrated chip, design USB1.1 interface.

(6) guidance panel

Adopt general 4*4 keyboard, can on keyboard, define dedicated array of keys, and cover with overlay film.

(7) system speed

Clock frequency 12MHz with the ADUC812 microprocessor is as the criterion.

(8) system loading coupling

1) when logic circuit TTL and CMOS mixing use, adds and use the level conversion integrated package.

2) when interface circuit design, add and use dissimilar drivers.

Three. the control system software design

Systems soft ware is by modularized design

(1) system initialization module

After system opened, system powered on and carries out initialization, comprises other modules such as ADC module, DAC module, intervalometer, serial port.

(2) control channel is selected and modular converter

Adopt the control of keyboard input external interrupt pattern.When keyboard is imported the channel code of image data, with the code of outside interrupt mode to the CPU input image data passage of being wanted, the programmed instruction that presets in the CPU allows this passage begin data acquisition and A/D conversion, and convert thereof into digital signal, send into cpu instruction predetermined data memory position and store.

(3) ADC acquisition module

The ADC acquisition subsystem of ADUC812 part by analog multiplexer, temperature sensor, sampling hold circuit (T/H), 12 approach one by one comparison ADC ,+2.5V a reference source and ADC proofreaies and correct, control logic is formed.The effective input range of the voltage of ADUC812 analog input end is relevant with a reference source.When adopting internal reference source, its effective input range is 0～+ 2.5V; When adopting the outside reference source, the outside reference source should be introduced from the Vref end, and its suitable scope is+2.3～+ 5V, the voltage range of corresponding analog input end is 0V～Vref.

The pattern of physiological signal collection is two kinds:

1) monophonic signal collection

This acquisition mode is a code of being intended acquisition channel by the keyboard input, is transferred to CPU with outside interrupt mode, and CPU begins this passage is carried out continuous acquisition after accepting, and signal input data designated storage portions after the A/D conversion of gathering is deposited.

2) several channels are gathered in turn

This acquisition mode is a code of being intended gathering a plurality of passages by the keyboard input, is transferred to CPU with outside interrupt mode, and CPU begins the signal of a plurality of passages is gathered after accepting.Control the sampling period at the AD collecting part by timer 2, it is made as 1ms, specified a plurality of passages are gathered in turn, and the signal of collection carries out the A/D conversion in turn, and the signal that different channel is gathered leaves different data-storing districts in.

3) eight channels are gathered in turn

This acquisition mode is by keyboard input whole eight channels take turns the instruction of gathering, and is transferred to CPU with outside interrupt mode, and cpu instruction takes turns collection to whole eight channels.Control the sampling period at the AD collecting part by timer 2, it is made as 1ms, whole eight channels are gathered in turn, and the signal of collection carries out the A/D conversion in turn, and the signal of different channel acquisition leaves different data-storing districts in.

The AD control characteristic

Control the A/D conversion by ADCCON1～3 three special function register, transformation result can be kept in two special function registers of ADCDATAH/L, the least-significant byte of translation data is kept in the ADCDATAL depositor, and high 4 be kept among low 4 of ADCDATAH high 4 channel numbers that are used for preserving employing of ADCDATAH.

1) ADCCON1-control conversion and acquisition time

●MD1?MD0?CK1?CK0?AQ1?AQ0?T2C?EXC

MD1, MD0 are used to select mode of operation

00: work in energy-saving mode; 01: work in normal mode; 10: when not changing, enter energy-saving mode; 11: when not changing, enter standby mode.

● CK1, CK0 select the master clock divide ratio, produce the ADC clock from the master clock frequency division, and CK1-0 is 00～11, respectively by 1,2,4,8 frequency divisions.

● AQ1, AQ0 select ADC to adopt the maintenance clock, and divide ratio produces from the ADC clock division, and AQ1-0 is 00～11, respectively by 1,2,4,8 frequency divisions.

● T2C: timer 2 overflows trigger bit, and by this position of set, the spill over that can use timer 2 is as ADC transition trigger signal.

● EXC:ADC conversion external trigger enable bit, by this position of set, can trigger the ADC conversion by external pin (CONVST).

2) ADCCON2-control channel is selected and translative mode

ACCI?DM?A?CCONV?SCONV?CS3?CS2?CS1?CS0

ACCI is an interrupt flag bit; DM A is DM A mode enable position; CCONV is continuous translative mode enable bit; SCONV is single conversion mode enable position; CS3, CS2, CS1, CS0 are the channel selecting position, and the user specifies the passage that must carry out the A/D conversion by program.CS3-0 is 8 channel numbers of indication in 0000～0111 o'clock, 1000 o'clock indicated temperature pick offs, and 1111 is DM A termination signal, other situations keep.

3) ADCCON3 is used to provide ADC state indicating bit, has only the 7th to be the BUSY position, and other position keeps, and the BUSY position is a read-only bit, and in an effective ADC conversion or check-verifying period, this position is " 1 ", when conversion or verification

After the end, this position clear " 0 ".

The physiological signal collecting part

The collection of physiological signal is exactly to utilize inner integrated 12 the ADC acquisition subsystems of ADUC812, and promptly the physiological signal AD that directly enters single-chip microcomputer after through processing such as amplifications, translations imports.

At the AD collecting part, utilize the purpose of the single conversion function realization timing sampling of ADC.Sampling period is made as 1ms.

Its C51 LISP program LISP is as follows:

#define?AdcSelectChan(n)ADCCON2＝(n&0x07)

#define?CNST(m)65536-(m*1000)/1.085

#define?ADCBUF_LEN?4096

#define?AdcSetPeriod(n)

RCAP2L＝CNST(n)；RCAP2H＝CNST(n)/256；TL2＝CNST(n)；TH2＝CNST(n)/256

Xdata?uchar?adcbuf[ADCBUF_LEN]；

Initialization; ET2=0; //disable timer2 interrupt

ADCCON1＝0x52；//power?up?ADC?&?enable

Timer2?mode

AdcSelectChan(0)；//select?chan#0

AdcSetPeriod(1)；//setup?sample?period＝1ms

T2CON＝0；

Adcbuf[adchead++]＝ADCDATAH；

//read?character?into?ad

cbuffer

adcbuf[adchead++]＝ADCDATAL；

//read?character?into?in

buffer

if(adchead＞＝(ADCBUF_LEN))

//if?at?end?of?buffer

Adchead＝0：

(4) digital signal processing module

Carry out different disposal for each the way word signal after the AD conversion

1) passage 1: pulse signal-carry out count per minute by the digit pulse number calculates the Pulse Rate of per minute.

2) passage 2: electromyographic signal-employing digital filtering: filter range:＜69Hz/ branch＞316Hz/ branch.Frequency range 70～315Hz/ the branch that keeps.The myoelectricity number that frequency 70～315Hz/ is divided carries out count per minute, calculates the myoelectricity number of per minute in the said frequencies scope.

3) passage 3: EEG signals-employing digital filtering: filter range:＜3Hz/ branch.Frequency range 4～20Hz/ the branch that keeps.Frequency is carried out per minute calculating at the brain electricity number that 4～20Hz/ divides, calculate the brain electricity number of per minute in the said frequencies scope.

4) passage 4: average skin magnitude of voltage in the skin signal of telecommunication-calculating per minute, and by the data computation meansigma methods of sampling.

5) passage 5: the mean values of skin temperature in skin temperature-calculating per minute averages calculating according to the skin temperature numerical value of gathering.

6) passage 6: the number of times that respiratory frequency signal-calculating per minute is breathed (if adopt the temperature mode respiration pickup, then for calculating the respiratory frequency in the per minute).

7) passage 7: the each blood pressure measurement numerical value of blood pressure signal-record, calculate in per 1 minute (blood pressure measurement be per minute once), the mean values of blood pressure.

8) passage 8: the amplitude of blood oxygen saturation-calculating waveform (detecting the amplitude of each waveform), the mean values of amplitude of wave form in the calculating per minute.

Illustrate: the passage of Digital Signal Processing is consistent with data acquisition channel, and the programmed instruction that presets has only the passage of gathering physiological signal just can carry out the processing of digital signal.

(5) module is stored, contrasted to digital signal

Gathered with the digital signal of AD conversion and stored in the specified zone of RAM, send one by clock generator timing (per minute) and interrupt the application signal to CPU, the CPU per minute is counted or is calculated each physiological signal of having gathered, and the result of calculation of each different passage is stored in specific appointed area.After intervalometer sent interruption application signal in second minute, the physiological signal mean values of second minute each the different passage that calculates, be used for and calculated the data contrast of finishing in first minute by CPU, and calculate each other variation ratio automatically, this is changed ratio be stored on the one hand in the specific appointment ram region; On the other hand, directly should change numerical value and be presented at (with figure or mode word) on the LCDs.Simultaneously can pass through the I/O mouth, transfer to execution module (, ratio changing being become the calibration pulse number) by the scale conversion with digital form.The mean values of each passage that CPU calculated in first minute is as initialization value, the signal of per minute collection later on and the meansigma methods and the initialization value that calculate compare, calculate the variation ratio, after again it being carried out the scale conversion, become the standard multiplication factor, on display, show with the multiplication factor form of standard, and according to the size of multiplication factor, digital signal is carried out the DA conversion, and the analog drive circuit after the conversion drives execution module and carries out the instruction of presetting.Digital signal contrast per minute carries out once, sends regularly interruption application signal by intervalometer and carries out to CPU.If only gather single passage, then show for the single channel contrast.If acquired signal is a plurality of passages, then should the contrast demonstration in turn of a plurality of passages.During demonstration, indicate different tunnel names on the liquid crystal display, and port number.Speaker or speech chip send sound or the music rhythm of representing this passage according to different passages.

(6) LCD MODULE

Native system adopts the lattice liquid crystal display screen as display device.The drive circuit of display is connected with the ADUC812I/O mouth, accepts cpu instruction and sends shows signal.Comprise: system mode (start or shutdown), service aisle title and code, user use after this system physiological signal and change state that is multiplication factor positive and negative (tensity raising → multiplication factor is a negative; Loosen → multiplication factor is a positive number) and quantity, represent the figure of multiplication factor state, the input information of input keyboard, the time of system works.

(7) biofeedback module-this module adopts light (diode light beam), sound (speaker) feedback output physiological signal.

The output signal of biofeedback module be according to CPU to analog signal processing after, be directly on diode light beam and speaker, to show after the analogue signal by the DA transducer with digital signal transition.

The numerical value that shows is represented the physiological signal state of instantaneous acquiring.If only gather the physiological signal of a passage, then the sound that sends of the brightness of light beam indication and speaker is represented this passage, sends with the tone or the tone of this passage uniqueness.

If but the signal of gathering is a plurality of different passages, then the physiological signal of each passage shows in turn.Each passage shows 30 seconds.When this passage showed, the title and the channel number of this passage can appear in LCDs.And also can send special tone or the tone (user is known from application manual) of representing this passage on the speaker.The signal cycle of different passages shows in turn, call user's attention.

When the user was in relaxation state, the sound rhythm that speaker sends was slack-off, and the light beam level reduces, the raising of representative of consumer degree of relaxation, and degree of relaxation improves fast more, changes big more.

(8) keyboard input module-keyboard input module is used for setting operation, input control order of channel, the control system of collection etc.Employing standard 4*4 keyboard has the standardized product of driver and character library, as long as directly be connected with the I/O mouth.

(9) the different actuator of the Digital Signals of controller output module-output increases drive circuit board or switching circuit board on the I/O interface circuit, to drive actuator.

(10) usb interface module-increase USB interface chip is write the USB interface program, by USB interface with transfer of data to host computer.

(11) fault diagnosis module-when breaking down in system can autognostic, diagnoses CPU, ROM, RA, ADC/DAC successively, parts such as I/O interface.

Four. Single Chip Microcomputer (SCM) system program flow diagram (see figure 3)

Five. system function description

(1) selectivity single channel, several passages or whole passage-analog signal conversion are digital signal.Channel selecting adopts keyboard entry method, opens respective channel by the code of input selector channel.Can select a passage at every turn, also can select several passages (Any Digits between 2～7) at every turn, can also select whole passages (8 passages) at every turn.When selecting the single channel sampling, the continuous AD conversion of single channel.When selecting a plurality of channel sample, a plurality of passages are sampling and AD conversion in turn in turn.

(2) Digital Signal Processing-CPU of selector channel carries out carrying out digital filtering or identification processing by different passage requirements to the digital signal of ADC in the selector channel automatically.

(3) treated digital signal is changed direct acousto-optic demonstration (diode light beam and speaker show) through DA, and different channel codes show that different passages sends characteristic sound.

(4) the data timer counter or the calculating of selector channel, different time numerical value at interval contrasts automatically, and calculates ratio each other.

(5) comparing result scale conversion is converted into multiplication factor (multiplication factor of standard) with the ratio of comparing result.

(6) selector channel code, the standard multiplication factor shows on liquid crystal display screen with numeral and graphic form.Continue when selecting single passage to show, but numerical value is constant.When selecting a plurality of passage, the result shows in turn, represents the result of this passage with channel code.

(7) multiplication factor can change into the output of standard digital signals form and drive actuator.System has 4 driving interfaces and can be connected with drive circuit.

(8) system's USB interface can be transmitted the ADC digital signal of selector channel, perhaps comparing result and multiplication factor data to host computer.Host computer also can be by the CPU of USB interface control system, to its issuing command.

(9) system adopts standard 4*4 keyboard, can import various instructions by keyboard.

(10) system adopts the battery powered mode.Provide current monitor for oneself, when battery current is not enough, on liquid crystal display screen, show.

(11) system has 8 simulation physiological signal interfaces, can be by inserting the physiological signal of eight types through preposition amplification.

Embodiment 2. uses physiological signal collections, the analytical system PC type biofeedback training system as platform

One, design concept:

For quality that improves device and the time that shortens exploitation, native system is based on the exploitation on physiological signal collection, the analytical system platform.Utilize system platform powerful physical signals collecting, storage, analytic function, after suitable processing of physiological signal process with the target collection, directly be transferred to the Excel software (with the form of ASCII spreadsheet file) of Microsoft company, directly the physiological signal data that transfers in the Excel software is added up, calculate, and analysis result shown with sound and graphics mode, reach the physiological signal feedback, instant physiological status is accurately pointed out, and instructs the effect of the better training of trainee.

Two, designing requirement:

This software should be able to satisfy following function

(1) physiological signal feedback function one is selected the physiological signal classification of biofeedback.Can select single channel, the dual pathways, or the feedback of multichannel physiological signal; The threshold values of physiological signal feedback is set.Can feed back threshold values as physiological signal by baseline value, or oneself is provided with the threshold values of feedback arbitrarily; The sound feedback of feedback physiological signal shows.The size of feedback physiological signal sound and the change of physiological status are linear; The graphical feedback of feedback physiological signal shows.The graphic color depth degree of feedback physiological signal and the change of physiological status are linear.

(2) trainee's physiological status changes accurate prompt facility one dynamic analysis of degree and calculates trainee's physiological change degree (comparing with baseline value); Voice document is preset in broadcast, accurately reminds trainee's physiological status to change degree.

(3) training guidance and inducing function one preset the target (preset physiological status and change desired value) of training; When at the appointed time, trainee's physiological status changes in the time of just reaching desired value, and software is play the training guidance image that presets automatically and induced language, instructs and induce the trainee to reach better training effect.

Three, development environment and development language

(1) software environment one operating system: windows 2000 of Microsoft company and XP or above version; Development language: Visual Basic 6.0, Excel 2002; Interface: Microsoft Windows multiple document graphic USERinterface (MDI GUI); Sound feedback (Audio feedback): Play Sounds (MIDI, WAV, Audio CD).

(2) hardware environment

PC has 1.1GHz or higher central processing unit, 256MB ROM or more than, the above hard disk of 40GB, VGA (1024*768) or more than, sound card and video card, 1-4 USB interface.

Four, software function is described in detail

(1) registration and registration

1) unique user's name

Each trainee must have a unique user's name.This user's name is that this trainee is exclusive, all these trainees' data all can be stored under this title, this title also is the basic document title (Basename) in the BioBench software simultaneously, use the BioBench title and form function automatically, physiological data in all biofeedback trainings all can form filename automatically under this basic title, for example the basis name is called " Wang Wen ", this trainee's All Files name can form " Gaosheng 001 " automatically, and " Gaosheng 002 "～～～.When the trainee registers basic title, should in the data base, search for automatically,, should be reminded " same title has been arranged among the data base, please use same title " if same title has been arranged among the data base.

The title of trainee's registration must be unique, and in BioBench software and in this software, both are consistent, and this software is the reception data from BioBench software, is exactly to obtain down from this file name file.

2) trainee's general information registration

At register name simultaneously, trainee's general information should be registered, name for example, and the age, occupation, state, the address, liaison method, phone, the purpose of undergoing training, training objective, individual's health status is described, individual's previous history, allergies etc.The general information of trainee registration can write down physiologic information as personal information and trainee and leave in the data base simultaneously.

(2) accept the physiological data that BioBench software transmits

This software is based on the BioBench basis of software and develops, the collection of physiological data, and functions such as date processing and initial data preservation are born by BioBench software.This software is directly accepted to be transferred to physiological data in the Microsoft Excel software by BioBench software with ASCIISpreadsheet file form.And in Excel software, further handle transmitting the physiological data that comes.For the physiological data of properly accepting from BioBench software, to transmit, and in Excel software, effectively further handle, must finish following function:

1) position of accurately specifying physiological data to transmit.

Before physiological data transmits, must name in advance, and specify the physiological data that transmits to arrive the position of regulation.

2) select the biofeedback physiological signal accurately

Physiological data is delivered in the Excel software of regulation before the appointed positions accurately in BioBench, should select biofeedback physiological signal real-time statistic accurately, calculate, show, or calculating and demonstration are added up in timesharing respectively to the physiological signal of different biofeedbacies.

For example, when BioBench only gathers, when handling a kind of physiological signal of biofeedback (ECG), this software should be able to specify the physiological data of assigned address in the Excel software add up with being transferred to immediately, calculate, and result of calculation is fed back with sound and graphics mode.

Again for example, BioBench software is gathered four kinds of dissimilar physiological signals (ECG, EEG, EMG and GSR) simultaneously, and at this moment, this software must specify four kinds of different physiological signals of assigned address in the Excel software to add up respectively to being transferred to, and calculates and demonstration.Result displayed can adopt multiple document graphical user circle (multipledocument graphic user interface, MDI GUI).Show four kinds of physiological data statistical results simultaneously, and feed back the different physiological signals of representative respectively with different tone software.

Select the physiological signal type of biofeedback should be before biofeedback training begins, carry out system when being provided with, select, in principle, select the physiological signal of biofeedback and BioBench software to select collection, the physiological signal unanimity of processing.After the collection channel of BioBench software is set,, select the physiological signal of biofeedback in this software with same method according to the result who selects.

(3) baseline value of every kind of physiological signal of measurement, preparation initialization threshold values

Be used for the physiological signal of biofeedback training for every kind of preparation, baseline value that all must the test trainee prepares the initialization threshold values with this baseline value.

Because everyone physiological signal numerical value is ever-changing, each trainee can have different physiological signal datas, carries out must measuring trainee individual's physiological signal baseline value before the biofeedback training, compares and analyzes as the initialization threshold values with this.When measuring trainee's baseline value, require under trainee's rest state, began test after sitting quietly 5 minutes.The testing time of baseline value is two minutes.After setting 2 minutes on the BioBench software minute, stop automatically, the physiological data that baseline value is measured is added up, (meansigma methods in two minutes is as the initialization threshold values to get its meansigma methods, with this threshold values index as a comparison, compare with the physiological signal of gathering in the biofeedback training of the same race, calculate comparing result.

In this software, should after measuring baseline value, baseline value be preserved, with contrast index as homogeneous or later biofeedback training.

In principle, carry out all should testing baseline value before the biofeedback training at every turn, also can test baseline value one time,, be applied in each biofeedback training as index with this initialization threshold values, selection should be determined by the doctor.Should establish the options function in this software, allow the doctor select voluntarily, " test baseline value " or " using the baseline value of preserving ".

(4) the relatively variation of biofeedback physiological signal automatically, image and sound feedback are provided, with the initialization threshold values is index, the physiological signal data that BioBench software is sent to assigned address in the appointment Excel software is added up and is calculated, variation more each other, add up per 30 second physiological data meansigma methods, and compare calculating with this mean values and initialization threshold values, in case change between the two, and the direction that changes is to meet the good direction that presets, then start graphical feedback and the sound feedback that presets, calculate the amplitude that changes simultaneously, amplitude of variation is retrieved according to the multiplication factor constant form that presets, find out the multiplication factor constant, and expand and open the specified voice document of multiplication factor constant, give voice guidance.

1) intensity of variation of biofeedback physiological signal relatively automatically

This software is the physiological signal that transmits per 30 seconds of statistics automatically, with statistics 30 second meansigma methods, compare with the initialization threshold values automatically, and with comparing result output and demonstration automatically automatically.

If a) comparing result shows, physiological status does not change, and then can not trigger any feedback device, and only on display screen, in this physiological signal display, the demonstration physiological status does not have change.If, will open the voice document that presets automatically beginning to test unaltered words in 3 minutes, " effect does not appear in your training, please trains according to guidance ", then, can play the voice of inducing and instructing automatically, instruct the trainee to enter relaxation state.

B) if the comparing result demonstration, physiological status changes to preassigned rightabout, twice such result appears continuously, will trigger and open the voice guidance file " your training fails to bring about the desired effect; please train according to guidance " that presets, can play the voice of inducing and instructing automatically then, instruct the trainee to enter relaxation state.

C) if the comparing result demonstration, physiological status changes to preassigned good direction, the numerical value that software should calculate automatically, multiplication factor numerical value is shown on display screen with figure and digital form, trigger simultaneously and preset Video file and Audio file, feed back the result of improvement in the mode of animation and tone, among the high more Video file of improvement degree the animation activity strong more, tone is also high more thereupon.Meanwhile, also can trigger the suggestion voice file that presets,, expand and open different voice documents, provide immediate feedback to the trainee with voice mode according to different multiplication factor quantity.

2) degree of improving according to trainee's physiological status provides multi-form animation, tone and voice feedback, in case trainee's physiological status changes, the various feedback signal of software setting should present by different way.Feedback form comprises figure or animation, tone or music and suggestion voice etc.

A) figure and animation

Have only the scope of trainee's physiological change to surpass baseline value, just figure or animation can occur.The degree that physiological status changes is big more, the color of figure is bright-coloured more, the movement range of animation is all the more big, figure and animation all are among the Video file that presets, in case trigger (being that physiological change surpasses baseline value), automatically the demonstration that opens file, in the figure in the change of color or the animation action change and change linear with physiological status.Different multiplication factors is specified the figure of different color or the animation of different movement ranges.

B) composite tone or music

Have only the scope of trainee's physiological change to surpass baseline value, just composite tone that can occur feeding back or music.The amplitude that physiological status changes is big more, and the intensity of composite tone or music is just high more, and sound is big more, and intensity of sound and physiological status change present linear relationship.Composite tone and music leave among the Audio file, in case trigger (being that physiological change surpasses baseline value), the demonstration that opens file automatically, the multiplication factor of different numerical value is specified the intensity of sound of alternative sounds intensity.

C) voice suggestion

The change of the degree that physiological status is different has different voice suggestions.

● physiological status does not have change; Continue to surpass 3 minutes, automatic speech prompting " effect does not appear in your biofeedback training, please trains according to guidance " occurs, play the training guidance content then.

● physiological status changes (physiological status changes to preassigned rightabout) to bad direction; If such result appears in continuous two tests of 30 seconds, automatic speech prompting appears: " your biofeedback training fails to bring about the desired effect, and please trains according to guidance ", play the training guidance content then.

● physiological status changes (physiological status changes to preassigned direction) to good direction; Software calculates the percentage ratio that physiological status changes automatically, and converts to automatically and loosen the multiplication factor parameter, and different multiplication factor parameters have the voice suggestion content of different content.

Physiological status is improved level calculating method:

Average physiological values/baseline value of 30 seconds of physiological status degree of relaxation=measure at present

Improve degree for further accurate physiological status, adopt " multiplication factor " parameter, the different different physiological statuss of " multiplication factor " parameter representative are improved degree, different voice suggestion contents is arranged, and have different labellings to represent that detailed content is seen Fig. 4.

In order further clearly to represent degree of relaxation and state thereof, expression degree of relaxation and loosening of state thereof after giving a rank, multiplication factor are reresented user.This rank is represented with ten point system, is made of letter and number, and the multiplication rank is represented mode.

As shown in Figure 4, the multiplication factor of expression degree of relaxation is reresented user after giving a rank.That is, if multiplication factor less than 1.0, then its rank is " G0 ", if multiplication factor is equal to or greater than 1.0 but less than 1.2, its rank is " G1 ".If multiplication factor is equal to or greater than 1.2 but less than 1.4, its rank is " G2 ".If the factor is equal to or greater than 1.4 but less than 1.6, its rank is " G3 ".If G is greater than 1.6 less than 1.8, its rank is " G4 ".The rest may be inferred, and rank is high more, and degree of relaxation is high more.In addition, show jointly that corresponding to these rank labellings and rank then user can directly be learnt his degree of relaxation if in display 610, use.

Also be fine to the details of user prompting about multiplication factor or class value.For example,, can provide a piece of news to user if class value is " G0 ", as " degree of relaxation not improve ", and if class value is " G1 ", can provide a piece of news to user, as " degree of relaxation has very little improvement ".Similarly, when class value was " G2 ", user can be subjected to the message such as " degree of relaxation has less improvement ", received the message as " relaxation state makes moderate progress " when class value is " G3 ".When class value is " G4 ", user will be subjected to the message such as " degree of relaxation has improvement ".

Because as the result of this prompting, user can be confirmed the effect of current training at once, thus should training very attractive to user, make them wish to continue to practice.

In case finished measurement, CPU compares the rate of change that obtains with preset target value, and responds this results suggest user relatively.Multiplication factor with respect to the desired value that is used for rate of change is endowed a rank, responds this class value prompting user.Multiplication factor less than 1.0 illustrates that current rate of change does not reach desired value.Therefore, when user provides message such as " miss the mark value ", continue to strengthen training to encourage him.

On the other hand, in case passed through the dwell time that presets, intervalometer produces an interruption, because can not expect the relaxation state that reaches suitable at this point, even user is proceeded relaxation training.CPU prompting user is measured and is stopped, and the setting in the release timer, therefore measures and is ended automatically.After being subjected to this prompting, user can begin again to measure after the time of waiting for a weak point.

Carry out the result of relaxation training as mode according to this, not only can point out user he whether entered relaxation state, and can be when he reaches this state or he point out user when unlikely reaching this state apace.

Just as used herein, rate of change is represented the intensity of variation by the daily value of the index of current calculating and index or the desired value that presets.Yet, also can represent that the desired value of current calculating and current measurement begin the variation of the preceding desired value of calculating with rate of change.If a kind of situation in back then might be confirmed the variation of degree of relaxation in real time in measurement.

3) play the training guidance content according to trainee's physiological status change degree.

In measuring process, if trainee's physiological status does not produce change, or the direction that changes changes in the opposite direction, though or physiological status changes, but the amplitude that changes fails to reach re-set target, at this moment in above-mentioned voice suggestion simultaneously, can trigger the training guidance language file that presets and be play, instruct the trainee to train with more efficient methods by speaker.This is a kind of suggestion device that instructs user specially, makes him can improve degree of relaxation.A kind of scheme of considering is to instruct the user deep breathing of slowing down, and when not improving, degree of relaxation provides for this purpose special-purpose intervalometer, in this case, if deep breathing number of times is corresponding to multiplication factor or class value, the degree of relaxation in the measuring process can easily be brought up to desired degree.At this moment be necessary to instruct in this case the respiratory frequency of user, when promptly the degree of relaxation of failing to reach expectation when user is improved, can be according to loosening multiplication factor or multiplication factor number of levels, select suitable respiratory frequency, carry out depth of respiration by the respiratory frequency that instructs in the speaker, loosen to reach greatly.Relaxation state and inductive respiratory frequency relation see the following form, the multiplication rank is low more, the inductive respiratory frequency that needs is low more, respiratory depth is dark more, and will adopt the ventral breathing method, otherwise, when the multiplication rank reaches the G4 level, need not adopt the breathing abductive approach, when having only relaxation state not reach expected value, can promote user to enter deeper relaxation state by inducing and instruct user to deeply breathe with the speed lower than correct breathing rate.

Right sound device is play the instruction simultaneously, computer display screen can be play the respiratory waveform of representing regulation respiratory frequency in the above table, in the breathing model of demonstration, instruct trainee's inspiratory duration, breath holding time, expiratory duration, breath holding time, the trainee trains according to the content that instructs, soon the training objective that can obtain to expect.

(5) trendgram that physiological status changes in foundation and the demonstration training process

After the stipulated time is carried out in training, require software to add up trendgram in the biofeedback training process automatically, and adopt the multiple chart in the Excel software that the physiological status variation tendency is presented on the computer monitor.

The time of trend analysis can be selected (5 minutes, 10 minutes, 15 minutes) by the coach, in case after selecting official hour, software is added up automatically, produces trendgram automatically, and is shown automatically.

(6) data is stored and management

Add up in biofeedback process, calculating and all data that show are stored under the specified filename is automatically stored, and the numbering of storing data adopts the title of the automatic generation of basic title back.

When calling this document, seek from Browse, opening file gets final product.The file of storing should comprise user's name, biofeedback training time started, concluding time, the time sheet of taking place in the training process, doctor's written notes and evaluation etc.

The trend that physiological signal changes in each training should write down and preserve automatically.

(7) formation of training report and printing

After training end, should form training report (fill in the content of part regulation by the doctor after) automatically, the training report that generates should be kept under the file of trainee's user name automatically automatically, can use the format print of Windows Word when needing.

Five, software function module is divided

(1) client's registration and registering functional module

1) give each client the personal code work of a special use, code adds 6 Arabic numerals by customer name and forms,

In case special-purpose personal code work forms, all storage data will form different subfiles all under this general act title.

Incident and records all when 2) client uses this software at every turn will all be kept in this document folder.

When 3) using BioBench software, the client uses same title; Adopt same title during to this software from BioBench software transmission ACSII formatted file.

4) client needs registration client's general information before using this software first, individual previous history, and the purpose of using this software, and first the training time, the training process event description is trained the concluding time etc.

When 5) client reuses this software, only need fill in the training relevant provision, comprise the record training time started, training process incident, training concluding time, information such as training effect.

(2) accept the physiological data functional module of BioBench software transmission

1) before the physiological data transmission, special-purpose user's name is set in BioBench software, the mode of regulation file transfer, transmission time started, transmission time, transmission end time, dependent instructions such as the number of transmissions.

2) transmission means that is sent to this software from BioBench should be able to satisfy following requirement:

A) after the client sat quietly 5 minutes, preceding 2 minute datas that begin to gather were as baseline value, the initialization values of computing client.

B) after baseline value collection in 2 minutes first finishes, the physiological data meansigma methods that calculate once transmission per 30 seconds is worth as a comparison, compares with initialization value, and calculates comparing result.

3) the accurate positioning function in position that physiological data is transmitted

In Excel row calculation table, represent string (y direction) from each physiological signal that BioBench is sent to the Excel software, each physiological data is represented delegation's (X direction), indicate physiological data acquisition time accurately in the physiological data of transmission, in order effectively to contrast the different time variation of every kind of physiological data at interval, must in Excel row calculation table, accurately locate the position the physiological data of transmission.

4) select and use needed physiological data accurately

In order to satisfy the needs that different physiological signals detects and analyzes, this software should have function and accurate selection is set and use the physiological data that has transmitted, analyzes and correlated needs to satisfy.

(3) each client is set, the initialization threshold values functional module of every kind of physiological signal

1) during each this software of client's first Application, should be to two minutes baseline value of every kind of physiological signal measurements, and with after the data average computation of measuring, preparation initialization threshold values.

When 2) client uses this software once more, can from the data base, call the initialization threshold values that has prepared, also can remeasure baseline value, prepare new initialization threshold values, come as required to determine by the doctor.

3) client's different physiological signals, the initialization threshold values of homogeneous measurement not should give preservation, and table notes minute, can automatically the initialization threshold values of repeatedly measuring be prepared the initialization value trend curve in the software.

4) automatically with the initialization value that calculates as the alarm threshold values, with this alarm is set, in case trigger this numerical value, trigger automatically sound feedback and (or) figure, the video feedback and (or) voice suggestion.

(4) the alarm function module is set

The purpose that alarm function is set is effectively to trigger the biofeedback of acoustooptical effect.In case physiological data triggers the alarm threshold values that is provided with, positive effect appears in prompting client's training, will show to occur the acoustic feedback signal that presets in the speaker by the image that presets on display.The threshold values of alarm setting derives from following manner, adopts which kind of mode, is selected by the doctor.

1) initialization threshold values: the initialization threshold values is the most frequently used, also is conventional alarm threshold values, if alarm function is not selected other options, just is set to the initialization threshold values as the alarm threshold values automatically.

2) by the specified target threshold values of doctor: the doctor can select the alarm threshold values voluntarily according to client's different conditions, and for example, the doctor can be according to existing research data intended target threshold values; Or client's physiological data when selecting for use finished last time; Or specify the numerical value measured in every preceding 3 minutes as alarm threshold values (meansigma methods of 3 minutes numerical value) etc.

(5) image or video feedback function module

In biofeedback training, in case the client triggers the alarm threshold values, will trigger image or video feedback function automatically, promptly can on display, show image or animation, this image or the animation that is presented on the display screen can be the Video file that is preset in the computer hard disc, also can be to start imprinting at CD (CD, DVD, VCD) picture on or animation.In case trigger image or video feedback, will open image file automatically or start CD-ROM drive, show image or the video that presets automatically.

The degree bright in luster of image, readability, the amplitude that the speed of action of animation and amplitude and physiological signal change presents linear relationship.The change degree of client's physiological values is big more, and image color is bright-coloured more, clearly reads highly more, and the speed of action of animation is fast more, and amplitude is big more.

Can show a kind of image or animation separately in the display, also can show several images and animation, the form of demonstration can set in advance.

(6) composite tone or music feedback function module

In biofeedback training, in case the client triggers the alarm threshold values, can trigger composite tone or music feedback function simultaneously, promptly can in speaker, play the sound of composite tone or music.This sound can be synthetic by the tone synthesizer, or the music file that presets, in case trigger the alarm threshold values, sound is play automatically, or music file automatically expands to start broadcasting and puts, the amplitude that intensity that plays sound and physiological values change presents linear relationship, and the change degree of client's physiological values is big more, and the intensity that plays sound is just big more.

Speaker can be play a kind of composite tone or a kind of music separately, also can timesharing play dissimilar tones and music (represent different physiological signals, inform the client by the doctor before the training) respectively.The form of sound playing can preestablish in software.

(7) the sound prompt function module of biofeedback training

1) in the biofeedback training, software timing calculates and analyzes the change state (per 30 seconds～per 30 minutes) of physiological values.Periodic interval can freely be selected (30 seconds, 1 minute, 90 seconds, 2 minutes, 150 seconds, 3 minutes).The computed in software physiological values changes amplitude and it is converted into the multiplication factor parameter.

2), preset different voice suggestion files at different multiplication factor parameters.When triggering a certain multiplication factor parameter, the a certain voice suggestion file that presets is opened automatically, and by loudspeaker plays voice document content, physiological signal sound feedback function and sound prompt function can not use simultaneously, when voice document was play, the sound feedback function stopped automatically.And after voice document finished, sound feedback started automatically.

3) sound prompt function and the doctor alarm threshold values selecting to be provided with has direct relation.When selecting the initialization threshold values to be the alarm threshold values, software is the multiplication factor parameter that will compare when the physiological values meansigma methods of Pretesting and initialization value and obtain; And when doctor's select target threshold values, then be to compare and the multiplication factor parameter that obtains with current numerical value and desired value.The absolute figure of multiplication factor will combine just meaningful with the alarm threshold values of test.

(8) biofeedback training guiding function module

1) threshold values that biofeedback training instructs is set, has only when triggering this threshold values, just can show and play the training guidance content.The training guidance threshold values determines that by the multiplication factor parameter different multiplication factor parameters can trigger the training guidance content of different frequency (seeing a functional description piece of writing for details).

2) the training guidance function can be provided with.The parameter that is provided with is the time, from back 3 minutes of training beginning, 4 minutes, 5 minutes, waits several time parameters in 6 minutes.As long as in the stipulated time after the training beginning, when the change of physiological values fails to reach re-set target, just can trigger the alarm threshold values, trigger sound prompt function.

3) the training guidance function adopts the mode that image shows and sound playing is carried out simultaneously to instruct the client to carry out biofeedback training.Demonstrate the breathing analog waveform of assigned frequency in the image, represent the breathing cycle of " air-breathing-as to hold one's breath-as to exhale-as to hold one's breath " with different colours and lines.Cooperate with it, play the language guiding content of " air-breathing-as to hold one's breath-as to exhale-as to hold one's breath " in the speaker, broadcast the baroque music music as a setting that quiet town function is arranged in the speaker simultaneously, help the client to reach training objectives.

4) training guidance function and image, sound feedback function and sound prompt function can not exist simultaneously.Before any one function on, must stop other two kinds of functions.

(9) the trendgram functional module that physiological status changes in foundation and the demonstration training process is after the stipulated time is carried out in training, requirement software is added up the trend in the biofeedback training process automatically, and adopts the multiple chart in the Excel software that the physiological status variation tendency is presented on the computer monitor.

The time of trend analysis can be selected (5 minutes, 10 minutes, 15 minutes) by the coach, in case after selecting official hour, software is added up automatically, produces trendgram automatically, and is shown automatically.

(10) data is stored and the managerial function module

Add up in biofeedback process, calculating and all data that show are stored under the specified filename is automatically stored.The numbering of storage data adopts the title of the automatic generation of basic title back.

When calling this document, seek from Browse, opening file gets final product.The file of storing should comprise user's name, biofeedback training time started, concluding time, the time sheet of taking place in the training process, doctor's written notes and evaluation etc.The trend that physiological signal changes in each training should write down and preserve automatically.

Formation of (11) training report and printing function module

After training end, should form training report (fill in the content of part regulation by the doctor after) automatically, the training report that generates should be kept under the file of trainee's user name automatically automatically, can use the format print of Windows Word when needing.

Embodiment 3. multichannel multimedia type bio-feedback arrangement (see figure 6)s

Biofeed back instrument is made up of pick off, physiological parameter change-over circuit, A/D change-over circuit, microprocessor controller MCU, board, communication interface.Wherein, medical sensor is electrically connected with the physiological parameter change-over circuit, and the physiological parameter change-over circuit is electrically connected with the A/D analog to digital conversion circuit, and the A/D analog to digital conversion circuit is electrically connected with microprocessor controller MCU; Be connected to board and communication interface on the microprocessor controller MCU, and link to each other with the host computer analysis and evaluation system by communication interface.

Medical sensor comprises one or more pick off in breathing, blood volume, skin temperature, skin electricity, myoelectricity, the blood pressure.

Comprise one or more physiological parameter change-over circuit in breathing, blood volume, skin temperature, skin electricity, myoelectricity, the blood pressure in its physiological parameter change-over circuit.

Above-mentioned host computer analysis and evaluation system is provided with display, and can link to each other with printer.

This device is gathered the relevant biomedicine signals of human body by special circuit, and the input computer carries out showing after the analyzing and processing or printing; Simultaneously signal is compared the back with baseline value of setting in advance and training objective value and provide feedback information in modes such as sound or visions, make training of human understand oneself physical and mental statuse at that time by feedback information, and carry out subjectivity in conjunction with effective Relaxation Methods and regulate, long-term training can improve the ability of control self physiology, mental status, therefore belong to electronic test instrument, can be applicable to fields such as psychological test, psychological skill training, rehabilitation and health supervision.

The individual machine that this device also provides indoor set, off-premises station and can divorced from computer have used separately, make user can under different occasions, different condition, carry out the training of biofeedback, and the acquisition mode by improving pick off and wear form has improved the comfortableness of using greatly.

As shown in Figure 7, biofeedback training partly is made up of pick off 1, physiological parameter change-over circuit 2, A/D change-over circuit 3, microprocessor controller MCU4, board 5 and communication interface 6 etc.Wherein, medical sensor 1 is electrically connected with physiological parameter change-over circuit 2, and physiological parameter change-over circuit 2 is electrically connected with A/D analog to digital conversion circuit 3, and A/D analog to digital conversion circuit 3 is electrically connected with microprocessor controller (MCU) 4; Be connected to board 5 and communication interface 6 on the microprocessor controller 4.Can be provided with and show its functional parameter by board 5; Link to each other with host computer analysis and evaluation system 7 by communication interface 6, this instrument can be sent to test data host computer analysis and evaluation system 7; Host computer analysis and evaluation system 7 is provided with display 8, and can link to each other with printer 9.

The setting of the relevant functional parameter of instrument, the analysis of signal, demonstration and storage etc. can be delivered to host computer by communication interface 6 and be realized by host computer analysis and evaluation system 7, also can realize at local microenvironment processing controller (MCU) 4.

Pick off 1 part comprises one or more in breathing, blood volume, skin temperature, skin electricity, myoelectricity, the blood pressure, and different signal amplification circuit filter in all corresponding physiological parameter change-over circuit 2 in each road, pick off 1 has been finished the conversion of biomedicine signals to the signal of telecommunication with signal amplification circuit filter; A/D change-over circuit 3 is mainly finished the conversion of analog electrical signal to digital electric signal, so that data storage, transmission and microprocessor controller (MCU) 4 carry out analyzing and processing to it; Board 5 is used for when breaking away from host computer work, and the base value of each road physiological parameter, training objective value, feedback system etc. are provided with and show; When measuring-signal surpasses setting value, remind user to regulate and improve the mental status of oneself by feedback systems such as vision or auditions: microprocessor controller (MCU) 4 is finished data acquisition to each road biomedicine signals, processing and to the control of whole system.Communication interface 6 parts can adopt different transmission means such as serial ports, parallel port or USB.Host computer analysis and evaluation system 7 is mainly finished the data that instrument is uploaded and is advanced left alone without help analyzing and processing and overall merit by certain algorithm, and carry out the demonstration and the printing of each road physiological signal collection of illustrative plates by display 8 and printer 9, offer of the evaluation of user feedback information simultaneously as the training effect.Comprise physiological parameter change-over circuits such as breathing, blood volume, skin temperature, skin electricity, myoelectricity, blood pressure in the physiological parameter change-over circuit 2.

Claims (10)

1. the present invention relates to a kind of biofeedback training and relaxation training guiding device of PC type, relate in particular to a kind of computer multi-media type, have physiological status change in automatic judgement and the prompting trainer training process, carry out the biofeedback training of physiological signal feedback and the new device that relaxation training instructs with colourful image acoustics and multiple amusement device.This device can be widely used in various types of somatopsychic illness treatments and health care.

2. according to the described device of claim 1, it is characterized in that, adopt physiological signal collection, amplification, conditioning device, data acquisition unit, computer interface unit, computer and multimedia device thereof and be specifically designed to acceptance, processing, analysis, contrast, calculate and the special-purpose software of control physiological signal makes up computer multi-media type biofeedback training and relaxation training guiding device.Said apparatus compares with the physiological signal of gathering in real time by adopted base-line value and to calculate multiplication factor in running.The degree that on behalf of the trainer, multiplication factor train front and back physical and mental statuse or relaxation state to change.Corresponding with multiplication factor, as to preset voice suggestion, or show with multiplication factor rank and labelling trainer real-time physical and mental statuse or degree of relaxation are pointed out, instruct the trainer to train automatically.Within the predetermined time, if the trainer fails to reach the multiplication factor rank of expection, the purpose that training is described fails to reach, at this moment, play the breathing analogue signal by computer multi-media in the mode of image and sound equipment, instruct the trainer to adjust respiratory depth and frequency and more effective adjustment physical and mental statuse and reach and loosen purpose.In addition, the multiplication factor rank also can be converted into impulse form and be converted into pulse signal, directly drive and control various amusement devices by numerical control device, perhaps digital signal is directly changed into analog control signal by the D/A change-over circuit, directly control various amusement devices or telecontrol equipment, to increase the interest of biofeedback training and relaxation training, improve the effect of training.

3. according to claim 1 and the described device of claim 2, it is characterized in that, device of the present invention is by physiology signal acquisition device, signal amplifies, conditioning device, data acquisition unit, computer interface unit, import with physiological signal, signal processing, signal analysis, calculate, correlated dedicated computer software, and computer and the complete system of multimedia device formation, finish multiple physiological signal collection, regulating physiological signals, amplify the A/D conversion, the signal input, handle, analyze, contrast, the various ways biofeedback, automatically prompting, multiple functions such as Self-breathing simulation.

4. according to claim 1 and the described device of claim 2, it is characterized in that, physiology signal acquisition device in apparatus of the present invention, form by multiple physiological signal sensor, include but not limited to the various sensor devices that are used for the physiological signal collection such as electrocardioelectrode, electrode for encephalograms, electromyographic electrode, skin electricity electrode, photoelectricity volume pulse transducer, pressure type pulse transducer, pressure type respiratory frequen, temp. type respiratory frequen, temperature sensor, inflated type pressure transducer, intravaginal special pressure pick off.These sensing devices can accurately be gathered physiological signal, and various physiological signals are converted into the signal of telecommunication, further handle.

5. according to claim 1 and the described device of claim 2, it is characterized in that, signal amplification in apparatus of the present invention, conditioning, A/D conversion, computer interface unit can adopt the universal data acquisition board of universal physiological signal preamplifier and computer interface to constitute.The high-performance bioelectric amplifier that universal physiological signal amplifier can adopt the multichannel height to touch rejection ratio altogether makes up, the universal data acquisition board that comprises the computer interface circuit then can select directly to patch the DAQ plate on the PC base plate, or the DAQ plate of employing band USB interface, or the DAQ plate of employing band RS232 interface, also can select for use and comprise the bioelectrical signals amplification, conditioning, the A/D conversion, the incorporate isolated plant of computer interface, to finish multichannel, the amplification of dissimilar physiological signals, conditioning, the A/D conversion, signal exports the function of personal computer to.

6. according to claim 1 and the described device of claim 2, it is characterized in that the computer apparatus of using in apparatus of the present invention, can be desktop personal computer, notebook computer, palm-type computer, Industry Control formula computer, monolithic computer, single-borad computer or other forms of computer apparatus.These computer apparatus are equipped with supporting multimedia accessory, for example, and sound card, video card, loudspeaker, microphone, earphone, Light-Emitting Diode, display screen etc.Above-mentioned computer apparatus and multimedia accessory all are universal, the conventional devices of using, and outside being used for the purpose of apparatus of the present invention, also can be used for other purposes that common computer is used.Also can adopt the special part specialized designs.

7. according to claim 1 and the described device of claim 2, it is characterized in that application specific is used to finish the computer software of physiological signal input, signal storage, signal processing, signal analysis in apparatus of the present invention.This software can be the special-purpose software that designs voluntarily, and the universal physiological signal application software of also can use various physiological signal inputs, handling, analyze, export is to reduce up-front investment and to reduce cost.

8. according in claim 1 and the described device of claim 2, its technical characterictic is in apparatus of the present invention, to use baseline value as the correlated basis of various physiological signals.The acquisition of baseline value can be gather the trainer train before several minutes physiological signal mean values, obtain in the time of also can be by the former training of Guidance Counselor.In training, in case when physiological signal numerical value touches baseline value, all can trigger the biofeedback of various ways.Adopt multiplication factor to represent the degree that trainer's physical and mental statuse changes and relaxation state changes in apparatus of the present invention.The acquisition of multiplication factor is to obtain divided by baseline value with instant physiological signal numerical value.Multiplication factor adopts multiplication factor rank and labelling to represent, different multiplication factor ranks is corresponding with the different suggestion content that presets, when multiplication factor arrives a certain degree, automatically prompting feeds back to the trainer with language and image mode, points out trainer physical and mental statuse and degree of relaxation at that time.At the fixed time, the trainer fails to reach predetermined multiplication factor rank, represent current training not produce Expected Results, device can be by the computer multi-media device with language and image mode, automatically play the simulated respiration signal, require the trainer to copy the simulated respiration signal to train, to adjust trainer's physical and mental statuse and degree of relaxation.The rank of the frequency of simulated respiration signal and the degree of depth and multiplication factor is linear, and the multiplication factor rank is more little, and respiratory frequency is slow more, and respiratory depth is dark more.

9. according to claim 1 and the described device of claim 2, it is characterized in that use the computer multi-media device in apparatus of the present invention, with rich and varied, vivid multiple image, sound equipment mode are implemented biofeedback.The presentation content that is used for biofeedback can be by video display CD, and the DVD playing device is play, and perhaps plays the fragment image of montage in the video file mode, or shows synthetic chromatic image with image file; And the sound equipment content of biofeedback can adopt digital music instruments interface (MIDI) to produce automatically, or adopts the audio file mode to deposit recording substance, or play-overs audio frequency CD.The image, figure, the sound equipment content that are used for biofeedback can freely be selected according to different biofeedback needs.

10. according to claim 1 and the described device of claim 2, it is characterized in that device of the present invention can be converted into output order with trainer's multiplication factor rank, control directly or indirectly that other are travelled, amusement, contest, telecontrol equipment.Can adopt instruction is changed into analog control voltage signal, driving and controlled motion control circuit, drive and control various devices indirectly, also can directly control various digital switch with the digital signal output form, or by the output digit pulse, the mode of control step motor is controlled all kinds of devices, this with state of consciousness control travel, the form of amusement, contest, telecontrol equipment can increase the interest of biofeedback training, the residence amusement improves the effect of training in health.

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