CN201414796Y - Fuzzy electrocardiogram intelligent measurement sensor - Google Patents

Abstract

The utility model discloses a fuzzy electrocardiogram intelligent measurement sensor which comprises three parts including a compact-type vital sign signal virtual instrument system sensor hung on a human body, a portable fuzzy electrocardiogram sensor host machine and a portable fuzzy electrocardiogram sensor host machine base. By adopting the neurofuzzy controller technology and the wireless real-time communication technology, the utility model provides electrocardiogram doctors with the 12-lead electrocardiogram data with reliable online access and high fidelity and with amplitude value axle mark and time axle mark for the electrocardiogram doctor, the GPS information with position vector, velocity vector and time vector, the active event information with man-machine conversation vectorand time vector, as well as full figure of fuzzy electrocardiogram to electrocardiogram doctor.

Description

Intelligent blurry electrocardiogram calculation and measurement sensor

Technical field

This utility model relates to medical domain, particularly a kind of intelligent blurry electrocardiogram calculation and measurement sensor.

Background technology

Cardiovascular disease has become harm humans health, has caused dead major reason, and current detection, especially the electrocardiogram technology that the detection of cardiovascular disease is mainly depended on electrocardiosignal.

1903, after Dutch biologist Williem doctor Einthoven has creatively found the ultimate principle of ecg phenomenon, developed the technology of record cardiac electrical activity, and invented routine electrocardiogram (abbreviating EKG as), he has obtained Nobel Prize for this reason." routine electrocardiogram " time-domain analysis precision height, but writing time is very short, belongs to journey type in short-term, its output signal can only be used for ecg wave form to be printed, and the semi-automated analysis of repeatedly kicking into capable long time journey is all impossible.Nineteen fifty-seven, U.S. experimental physics scholar Norman doctor J.Holter initiated the ambulatory electrocardiogram (abbreviate DCG as, be used to be called Holter) that can reach the above long time journey type of 24h, began to be applied to clinical in 1961, and be used widely the seventies in 20th century.But this long time range device is always, and distortion is big, low precision, can not automatical analysis etc. a series of problem perplex, showing in the clinical practice has significant limitation.

The recorder of initial ambulatory electrocardiogram is the equipment of the back of the body at a heavily about 31.9Kg of patient's back, and having occurred cassette tape afterwards is the analog electrocardiorecorder of recording medium.Because the LF-response of tape is very poor, causes the distortion of ST section waveform, early stage Holter only is used for ARR detection.Early 1990s, the low capacity solid-state recorders having occurred is the digital electrocardiorecorder of recording medium.Enter 21 century, develop rapidly along with the manufacturing technology of extensive integrated flash memory, having occurred the high capacity solid-state recorders again is the digital electrocardiorecorder of recording medium, and the ecg wave form recording quality of the feasible solid-state recorders that adopts undistorted compression or do not compress is better than magnetic tape recorder.But new distorted signals still may take place in digital electrocardiorecorder, because not being familiar with, microprocessor and digital device can not handle the continually varying signal, must become the continually varying electrocardiosignal is the digital signal that is interrupted in time, and this transformation process becomes time sampling.The result of sampling process is actually with discrete data and represents the continually varying electrocardiosignal approx, and this just might produce another distortion---the signal sampling distortion.Have only when sample frequency enough high (two times of upper limiting frequency that surpass signal) time, discrete digital signal just might be reduced into successive electrocardiosignal with high fidelity.

Up to now, there is following major defect in existing long time journey elecrocardiogram recorder:

1. digital data recorder does not have the sort of low-frequency distortion of analog recorder, but analysis precision is still very poor, and this is embodied in two aspects: the one, and traditional Holter can only detect the QRS ripple and can not detect small electrocardiosignaies such as P ripple, T ripple on amplitude; The 2nd, traditional Holter sample frequency in time is low excessively, is merely able to reduce the QRS ripple and can not reduces P ripple and T ripple.

2. no matter be the long time journey or the electrocardiosignal recorder of journey in short-term, the electrocardiogram (ECG) data of its collection all is one dimension electrocardio bar figure (has only amplitude axle mark and have only on the time shaft that does not have pointwise mark), and this just makes master computer Synchronization Analysis person under inspection's electrocardio bar figure, activity space scope, Survey Operations daily record and other vital sign parameters (for example ambulatory blood pressure, pulse, blood oxygen, breathing etc.) almost cannot.

3.Holter the electrocardiogram (ECG) data gathered of digital data recorder parameter dimensions very little, except measuring, the amplitude of signal do not have other information can supply to analyze reason basically, even the automatic discrimination of present go-go analytical system is lower, therefore requirement has the semi-automated analysis of the electrocardiogram doctor intervention of certain experience and familiar common ARR clinical meaning.

4. all long time journey electrocardiographs in the past, no matter be analog (for example tape) or digital (for example pcmcia card, flash card), electrocardiosignal can only be traced or store to the recorder of its front end all, the ecg analysis system that afterwards takes the backstage again comes playback, thereby all be " the electrocardiosignal recorder " of off-line transmission, rather than " core signal sensor " of online transmission.

Present inventor and Chen Shiliang be through years of researches, once invented ecg frequency spectrum detector (patent of invention number be ZL01129553.8, letters patent book number: No. 186351, Granted publication day: on December 22nd, 2004).Though bigger exploration and innovation are carried out in this invention aspect Hi-Fi technique, substantially solved first above-mentioned shortcoming, not only can with high fidelity detect the P ripple, small electrocardiosignaies such as T ripple, can certainly trace and duplicate the time-domain signal of the whole Cardiac cycle that comprises the QRS wave group with high fidelity, and the progress that relies on memory technology also can be resolved the record problem of long time journey, but exposed a new problem: the sample frequency that recorder is selected is high more, discrete digital signal reverts to the continually varying signal distortion error no doubt can be more little, but the requirement to the storage space volume of recorder is high more, and the time of signal processing is also long more.As seen, because high-fidelity instrumentation index (for example signal sampling frequency) has constituted a pair of contradiction with date processing resource (for example memory space, processing time etc.).The thinking of resolving contradiction is to allow the electrocardiosignal checkout gear have " self adaptation " ability: electrocardiosignal slope big more (being that the electrocardiosignal variation is fast more), and sample frequency is high more; Otherwise, electrocardiosignal slope more little (being that the electrocardiosignal variation is slow more), sample frequency is just low more.

Because second above-mentioned shortcoming disclosed the not free axle mark of one dimension electrocardio bar figure that present digital data recorder is gathered, can only by the transmitting-receiving the priority sequential and " fixed length " the time apart from sequence arrangement, if but the sampling period is the time distance of " elongated ", electrocardio bar figure " flexible distortion " will take place, thereby makes that electrocardio bar figure can't correctly be expressed; Moreover in case in real-time Communication for Power " communication disruption " takes place, or " bad point is rejected ", " breakpoint renews " that also is difficult to realize electrocardio bar figure appear; Therefore need be to one dimension electrocardio bar figure filling " timestamp " (promptly the electrocardiogram (ECG) data with amplitude axle mark being added amplitude axle mark and time shaft mark), to synthesize two-dimentional electrocardio bar figure.

From the analysis of the 3rd above-mentioned shortcoming as seen, why Holter does not realize automatical analysis, and except the parser that does not have the more intelligentized complexity of utilization, its parameter dimensions that can be used for data fusion also is an important reasons very little.If with two-dimentional electrocardio bar figure is master map, be accompanying drawing with person under inspection's the activity space range information and the audit log of record in real time again, just can synthesize " blurry electrocardiogram calculation " of real-time sensing and on-line analysis, this is that in essence difference is arranged with " ambulatory electrocardiogram " that can only off-line analysis, the appearance of " blurry electrocardiogram calculation " of this intelligence can't realize at present that for solving the full automatic fuzzy cluster analysis of electrocardiogram doctor under instructing and guiding provides probability.

Why the 4th above-mentioned shortcoming reflects that long time journey electrocardiosignal checkout gear in the past is " electrocardiosignal recorder " rather than " core signal sensor ", and key is that it can not online real-time Transmission electrocardiosignal.

In addition, even if Holter can realize " online real-time Transmission " mode, but when going out (or leave bed before) in institute outside institute, this " online real-time Transmission " mode can't allow the person under inspection " drag " and line.This also is the problem that novel cardiograph must face.

1973, Czechoslovakia physiologist Jan Penaz carried out non-invasive, seriality arteriotony detection with the plethysmograph technology at finger; In the period of 1978～1985, the TNO Biomedical Instruments manufacturing company of Holland produces finger arteriotony stationarity checkout gear (Finapres); Subsequently, improve on this basis again, design the new equipment (Portapres) that a kind of dynamic, light-duty, battery powered record of 24h continuously and the successional blood pressure of energy store; Recently, this Biomedical Instruments manufacturing company produces first novel device (Cardiopres) that can be used for the space flight test again, it is a kind of advanced person's a device for dynamically detecting, can carry out 3 passage electrocardiographic recorders of non-invasive finger arteriotony and standard synchronously, and have two kinds of respiratory pressure assessment signals.Regrettably, this Medical Equipment also is " signal recorder " rather than online " signal transducer " of off-line, can not online real-time Transmission electrocardiosignal, and the also not free axle mark of the signal that is write down.The more important thing is that the master map that these medical instruments are analyzed is the ambulatory blood pressure curve, and electrocardiogram only is an accompanying drawing, is not the leading role.

Self adaptation, high-fidelity, various dimensions and real-time sensing are to weigh four big technical specifications of ecg detector level height, wanting " harmoniously " has satisfactorily resolved above-mentioned relation, the change sampling period is " self adaptation " by " immobilizing ", become accuracy of detection and be " high-fidelity " by " low precision ", become information content and be " various dimensions " by " one-dimensional degree ", become " off-line record " and be " online sensing ", just must seek method innovation, this just the utility model proposes the technical background of this novel concept of blurry electrocardiogram calculation.

Summary of the invention

A purpose of the present utility model is to propose a kind of intelligent blurry electrocardiogram calculation and measurement sensor.

Above-mentioned purpose of the present utility model is realized by following technical scheme:

A kind of intelligent blurry electrocardiogram calculation and measurement sensor includes and puts the pocket vital sign parameter signals virtual instrument system pick off 1 that hangs on the human body, portable blurry electrocardiogram calculation pick off main frame 2 and portable blurry electrocardiogram calculation pick off main frame base 3 three big parts.

The utlity model has plurality of advantages, for example:

1. this utility model is equipped with electrocardio sampling neurofuzzy controller initiatively on main signal A/D converter and programmable amplifier, electrocardio sampling neurofuzzy controller provides corresponding control scheme under the different situations according to fuzzy control table, according to the power of electrocardiosignal variation, the electrocardiosignal sample frequency of sending to the main signal A/D converter is the watchdog timer instruction of " frequency conversion " rather than " frequently fixed " " self adaptation " on the one hand; According to the amplitude size of electrocardiosignal, the gain control line to programmable amplifier provides range automatic switchover instruction " self adaptation " on the other hand; Thereby from amplitude axle size and two dimensions of time shaft beat, the blurry electrocardiogram calculation signal of the high-fidelity of obtained to annotate " timestamp " " self adaptation ".This is the function that electrocardiograph in the past can't possess at all.

2. this utility model can synthesize the blurry electrocardiogram calculation full figure by the time shaft mark synchronously with measured person under inspection's blurry electrocardiogram calculation master map information (have electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector, breathe the vector sum time arrow), blurry electrocardiogram calculation accompanying drawing information (having position vector, velocity vector, life event information and time arrow).And up to now, all electrocardiographs not only do not have the blurry electrocardiogram calculation accompanying drawing information of position vector, velocity vector, life event information and time arrow, in addition " in real time sensing " have electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector, the blurry electrocardiogram calculation master map information of breathing the vector sum time arrow to the function of backstage ecg analysis system do not possess yet.

3. this utility model realize to utilize carry be similar to the same portable blurry electrocardiogram calculation pick off main frame of mobile phone, real-time play person under inspection's blurry electrocardiogram calculation image on LCDs, thereby the purpose of the person under inspection being carried out " cardiac monitoring ".This portable blurry electrocardiogram calculation pick off main frame, can also be used to the diagnosis that blurry electrocardiogram calculation carried out according to online sensing the electrocardiogram doctor, and instruct the person under inspection to take the knowledge of corresponding emergency treatment, convey to person under inspection or its household, for the patient wins valuable treatment chance in the very first time.

4. this utility model when needed, both can obtain the two-dimentional sign signal strips figure of backup, also can obtain the blurry electrocardiogram calculation master map of backup from portable blurry electrocardiogram calculation pick off main frame 2 from pocket vital sign parameter signals virtual instrument system pick off 1 " off-line ".

Nationality can be understood the plurality of advantages of foregoing and the present invention by following detailed description in conjunction with the accompanying drawings easily.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is the composition structured flowchart of fuzzy EGC sensor of the present utility model.

Fig. 2 is the electrical schematic diagram of fuzzy EGC sensor of the present utility model.

Fig. 3 is the electrical schematic diagram of the fuzzy EGC sensor of an embodiment of the present utility model.

Fig. 4 is the technical schematic diagram of electrocardio controlling of sampling neurofuzzy controller of the present utility model.Wherein, Fig. 4 (a) is the basic physical arrangement of electrocardio sampling neurofuzzy controller; Fig. 4 (b) flows through the journey structure for the control of electrocardio sampling neurofuzzy controller; Fig. 4 (c) is the knowledge flow procedure structure of electrocardio sampling neurofuzzy controller.

Fig. 5 is the technical schematic diagram of multi-C vector data anastomosing algorithm of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing enforcement of the present utility model is further elaborated:

Referring to Fig. 1, be depicted as the composition structured flowchart of fuzzy EGC sensor of the present utility model.

This utility model is the device of intelligent blurry electrocardiogram calculation and measurement sensor regulation as the aforementioned, includes pocket vital sign parameter signals virtual instrument system pick off 1, portable blurry electrocardiogram calculation pick off main frame 2 and portable blurry electrocardiogram calculation pick off main frame base 3 three big parts.

Pocket vital sign parameter signals virtual instrument system pick off 1 is put and is hung on the human body, with portable 2 wireless linking to each other of blurry electrocardiogram calculation pick off main frame; Portable blurry electrocardiogram calculation pick off main frame 2 is put usually and is placed on the portable blurry electrocardiogram calculation pick off main frame base 3 and (is in that " in platform when state (on-hook "), this moment, it was by built-in wire line MODEM sensing blurry electrocardiogram calculation; Also can carry portable blurry electrocardiogram calculation pick off main frame 2 goes out (to be in that " in platform when state (on-hook "), this moment, it was by built-in MTK portable telephone device sensing blurry electrocardiogram calculation.

Its operation principle is, pocket vital sign parameter signals virtual instrument system pick off 1 is gathered to have 12 lead electrocardial vectors, blood pressure vector, pulse vector, blood oxygen vector sum and breathes the multidimensional sign signal strips figure of vector, and " online " sensing is given portable blurry electrocardiogram calculation pick off main frame 2; Portable blurry electrocardiogram calculation pick off main frame 2 was comprehensive before this self gathers person under inspection's GPS spatial positional information and audit log, and from the next sign signal strips figure of pocket vital sign parameter signals virtual instrument system pick off 1 sensing, and then the mode by wire communication (being in " in platform (on-hook) " position) or radio communication (being in " destage (off-hook) " position) again, sign signal strips figure with measured person under inspection, GPS spatial positional information and life event information are synthesized blurry electrocardiogram calculation, blurry electrocardiogram calculation are sent in real time the ecg analysis system on backstage again; When needing, the ecg analysis system on backstage can obtain the two-dimentional sign signal strips figure of backup from pocket vital sign parameter signals virtual instrument system pick off 1 " off-line ", also can obtain the blurry electrocardiogram calculation master map of backup from portable blurry electrocardiogram calculation pick off main frame 2.

Figure 2 shows that the electrical schematic diagram of fuzzy EGC sensor of the present utility model.

This utility model is the device of intelligent blurry electrocardiogram calculation and measurement sensor regulation as the aforementioned, includes pocket vital sign parameter signals virtual instrument system pick off 1, portable blurry electrocardiogram calculation pick off main frame 2 and portable blurry electrocardiogram calculation pick off main frame base 3 three big parts.Pocket vital sign parameter signals virtual instrument system pick off 1 is by electrocardio bar map sensor 4, blood pressure signal pick off 5, pulse signal pick off 6, blood oxygen signal pick off 7, breath signal pick off 8, A/ D changer 18,20 8 functional units of virtual instrument system main control unit 19 and lithium battery DC-DC power supply form that (wherein, electrocardio bar map sensor 4 comprises the electrode functional unit 13 that leads, analog quantity electrocardiosignal processing function unit 14, main signal A/D changer 15, electrocardio sampling neurofuzzy controller 16 and 17 6 modules of digital quantity electrocardiosignal processing function unit).Portable blurry electrocardiogram calculation pick off main frame 2 is by multimedia master control groupware 10, event trace pick off 9, MTK portable telephone device 11, form at platform/destage status switch circuit 12 and 25 5 functional units of miniature ups power; Portable blurry electrocardiogram calculation pick off main frame base 3 is by forming at an AC-DC rectifying and wave-filtering and mu balanced circuit and a switch contact.

Below just the major function unit among Fig. 2 specify as follows:

1. electrocardio bar map sensor 4

Functional unit 13 1.1 electrode leads

(1) patch electrode 22 of the present utility model be by can be attached at skin surface by lining, be in by the conduction on " Ag-AgCl " or " Zn-Cu " electrode cores of lining central authorities and its surface and stick with paste constitute strong, good permeability, absorbing sweat, patch electrode that electric conductivity is good by the lining adhesion.

(2) the cardiac diagnosis lead system is meant at record during electrocardiosignal, and the input lead connection electrode of electrocardio instrument is placed on the connected mode at the specific test position (positive input terminal) of body, reference position (negative input end) and ground connection position.Lead system 23 of the present utility model is one of known lead system of principle.The lead of a pair of band patch electrode just forms a passage.

1.2 analog quantity electrocardiosignal processing function unit 14

(1) when the amplitude excursion of tested electrocardiosignal is very big, be the concordance that guarantees certainty of measurement, adopt programmable amplifier 11 that the body surface ecg electric potential signal that picks up is carried out preposition amplification.Specific practice is: by the control break Amplifier Gain, the little signal of amplitude is adopted big gain, the big signal of amplitude is used instead little gain, make A/D converter signal full scale reach homogenization.Comprise an accurate trapezoid resistance network or weighted resistance network in the feedback circuit of programmable amplifier, its gain can be controlled by metric rule.For example, the programmable amplifier with 3 gain control line A0, A1 and A2 just has 8 grades of decimal scale gains (scope 10-6～102).

(2) active filter 25 is made up of low pass filter and power frequency notch filter " cascade ", is used to filter the myoelectricity interference and the power frequency interference of high frequency.

1.3 main signal A/D changer 15

With high fidelity measure the purpose of one dimension electrocardio bar figure (being high-fidelity mould/number conversion electrocardiosignal) for reaching self adaptation, take the measure of three aspects:

(1) each input channel of the A/D changer of selecting for use all is built-in with sampling hold circuit, and include a input multiplexer (multiway analog switch) with scan function, not only the electrocardiosignal of some passages can be freely changed, and the multi-lead electrocardiosignal of importing can be avoided because the asynchronism of sampling causes occurring each other time lag.

(2) when the amplitude axle is measured, select the A/D converter device of figure place 〉=16 for use, and suitably set the gain of the electrocardio voltage amplifier of its front end " cascade ", to guarantee that measuring amplitude is small electrocardiosignaies such as millivolt P ripple of level, T ripple.

(3) electrocardio sampling neurofuzzy controller is installed for main signal A/D converter and programmable amplifier, electrocardio sampling neurofuzzy controller provides corresponding control scheme under the different situations according to fuzzy control table, the power that changes according to electrocardiosignal on the one hand, the electrocardiosignal sample frequency of sending to the START of main signal A/D converter port is watchdog timer instruction (the maximum sample frequency 〉=4KHz) of " frequency conversion " rather than " frequently fixed " " self adaptation "; According to the amplitude size of electrocardiosignal, the gain control line to programmable amplifier provides range automatic switchover instruction " self adaptation " on the other hand; Thereby controlling A/D converter from amplitude axle size and two dimensions of time shaft beat ground, " self adaptation " become electrocardiosignal the digital quantity signal form of interruption variation by the formal transformation of continually varying analog signals.

After the A/D conversion, the one-chip computer operation in the electrocardio bar map sensor is read in the electrocardiosignal of digital quantity signal form based on the electrocardio-data collection program of MCU interrupt processing technology.

1.4 digital quantity electrocardiosignal processing function unit 17

The electrocardiogram (ECG) data processing method comprises the high-pass digital filter algorithm, to one dimension electrocardio bar figure filling " timestamp " method, 12 lead electrocardiogram derivation algorithms with transmit 12 four modules of two-dimentional electrocardio bar nomography of leading in real time.Its application form is the special-purpose software bag that is made into based on MCU.

(1) module a1: high-pass digital filter algorithm

Computer software that is used to eliminate baseline drift of high-pass digital filter, common digital filtering software have middle position value filtering, arithmetic average filtering, weighted average filtering, the filtering of weighting recurrence average, one order inertia filtering and compound filter scheduling algorithm (high-pass digital filter can carry out filtering to the extremely low signal of frequency, this be analog filter can't be obtained).

(2) module a2: to one dimension electrocardio bar figure filling " timestamp " algorithm

Because the not free axle mark of the electrocardiogram (ECG) data that from noise, extracts, can only by the transmitting-receiving the priority sequential and " fixed length " the time apart from sequence arrangement, if the sampling period is the time distance of " elongated ", electrocardio bar figure " flexible distortion " will take place, thereby makes that electrocardio bar figure can't correctly be expressed; Moreover in case in real-time Communication for Power " communication disruption " takes place, or " bad point is rejected " appears, if or the sampling period be the time distance of " elongated ", also be difficult to realize " breakpoint renews " of electrocardio bar figure; Therefore need annotate to electrocardiogram (ECG) data " timestamp ".So-called filling " timestamp ", be meant to the digital quantity electrocardiosignal that has amplitude axle mark of being gathered according to " elongated " the time apart from size, the time shaft mark is carried out in pointwise, makes its synthetic two-dimentional electrocardio bar figure.

(3) module a3:12 lead electrocardiogram derivation algorithm

Electrocardio MCU is by 12 lead electrocardiogram derivation algorithms (it is known that multichannel expands to 12 derivation formulas that lead), and the two-dimentional electrocardio bar figure of multichannel (port number≤9 are generally 3) is expanded to the 12 two-dimentional electrocardio bar figure that lead.

(4) module a4: transmit the 12 two-dimentional electrocardio bar drawing methods that lead in real time

By two MCU communication, electrocardio MCU passes to vital sign parameter signals virtual instrument system main control unit in real time with the 12 two-dimentional electrocardio bar figure that lead.

1.5 the operation principle of electrocardio sampling neurofuzzy controller 16 is referring to Fig. 3.

2. blood pressure signal pick off 5, pulse signal pick off 6, blood oxygen signal pick off 7, breath signal pick off 8, A/D changer 18 and virtual instrument system main control unit 19

2.1 blood pressure, pulse, blood oxygen and respiration information pick off

Multidimensional sign bar map sensor array comprises blood pressure signal pick off, pulse signal pick off, blood oxygen signal pick off, breath signal pick off and the modulate circuit that comprises amplifier and wave filter separately thereof.

It is known finger arteriotony detection technique that blood pressure signal acquisition methods of the present utility model is based on principle; And the breath signal acquisition methods is to measure nose or oral cavity air-flow with critesistor (or gas sensing resistance); The pulse signal acquisition methods is to measure pulse information with physiological pressure transducer; Blood oxygen signal acquisition methods is to measure blood oxygen saturation with semiconductor gauge, and the principle of these method for sensing also is known.

After faint blood pressure signal described in the utility model, pulse signal, blood oxygen signal and breath signal are gathered, to deliver to modulate circuit (comprising amplifier, low pass filter, high pass filter and band elimination filter) separately earlier respectively; Then, remove interferential analog signals with these four kinds again and delivered to a multichannel A/D changer (different with fuzzy controller is that what its START port was imported is " frequently fixed " clock signal).

2.2A/D changer 18

A/D changer 18 becomes to be interrupted the digital quantity signal form that changes with aforesaid four kinds of signals by the formal transformation of continually varying analog signals; At last, after the A/D conversion, by the electrocardio-data collection program of operation based on the MCU interrupt processing technology, the vital sign parameter signals measured value of digital quantity form is read in one-chip computer (for example MCU chip or arm processor chip), and in interrupt handling routine, to the digital quantity electrocardiosignal that has amplitude axle mark of being gathered according to " fixed length " the time apart from size, the time shaft mark is carried out in pointwise), make its synthetic two-dimentional sign data and be stored in the built-in storage (RAM) of one-chip computer.

2.3 virtual instrument system main control unit 19

On the one-chip computer in the virtual instrument system main control unit 19, loaded sign data pretreatment software.This software comprises that 12 lead two-dimentional electrocardio bar figure method of reseptance c1, two-dimentional sign signal data read method c2, real-time radios transmit blurry electrocardiogram calculation master map method c3 and off-line and obtain four modules of backup blurry electrocardiogram calculation master map method c4 and form.

(1) module b1: receive the 12 two-dimentional electrocardio bar figure that lead

By two MCU communication, receive the 12 two-dimentional electrocardio bar figure that lead from electrocardio bar map sensor.

(2) module b2: read two-dimentional sign signal data

From the built-in storage (RAM) of one-chip computer, read two-dimentional sign signal data.

(3) module b3: multidimensional sign vector data is fused to the blurry electrocardiogram calculation master map

Utilize multisensor Data Fusion technology, the high-fidelity two dimension sign bar figure of electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector, breathing vector sum time arrow is synthesized " master map " of blurry electrocardiogram calculation.The operation principle of multi-sensor data blending algorithm is referring to Fig. 4.

(4) module b4: real-time radio transmits the blurry electrocardiogram calculation master map

The interfacing principle of one-chip computer and bluetooth communication is known.Pocket vital sign virtual instrument system main control unit is by bluetooth communication and portable wireless linking to each other of blurry electrocardiogram calculation pick off main frame, two-dimentional sign signal full figure is launched from bluetooth communication interface, simultaneously it is backed up in built-in external memory (as magnanimity semiconductor storage units such as flash/SD card/USB flash disks).

(5) module b5: off-line obtains backup blurry electrocardiogram calculation master map

When needing, the electrocardiogram doctor can be by USB interface as " reading " USB flash disk, obtains the backup two dimension electrocardio bar figure (when needing) in the external memory of electrocardio bar map sensor.And Holter is earlier to detachable external memory (as flash dish, SD card etc.) " writing " one dimension electrocardio bar figure, by the detachable external memory of artificial plug, by electrocardio off-line analysis system one dimension electrocardio bar figure is come out from detachable external memory indirect " reading " more then.Latter's (traditional long time journey elecrocardiogram recorder) needs artificial plug when obtaining electrocardiogram (ECG) data, the former does not then need (this utility model), can avoid some unnecessary mechanical failure like this.Thereby this external memory is not need " the read-only type " of plug rather than " the write-then-read type " that Holter needs plug like that.

3. the event trace pick off 9

Event trace pick off (9) is based on the GPS chip.Adopt ultra-large integrated GPS chip (its principle is known) to receive and the construction method of the sensor device of the GPS positional information of Sensing Satellite emission (comprise longitude, latitude, highly), GPS velocity information (comprising speed, direction) and gps time information (comprising date, time), promptly utilize GPS information to determine person under inspection's range of activity, thereby the auxiliary diagnosis person under inspection is in the sensitive area and easily sends out ARR the cause of disease, or grasp person under inspection location in space when showing effect arrhythmia.Way of realization based on the event trace information sensing method (b) of GPS is to be made into an event trace Information Gathering Software module based on the GPS chip technology;

4.MTK portable telephone device 11

MTK portable telephone device 11 is based on the MTK portable telephone device.Multimedia mobile communication chip on the MTK mobile phone (its principle is known) and the input of the cell phone keyboard of multimedia human computer conversation device, the input of mobile phone light pen, cell-phone bell output function and mobile phone screen display output function constitute a multi-user system " dumb terminal " (rather than network system " client ").Can utilize this " dumb terminal " on mobile phone, word for word to shield to show and also word for word send to arm processor chip (its principle is known), come online record person under inspection life event and then understand person under inspection's activity description by the human computer conversation, thereby the auxiliary diagnosis person under inspection is engaged in certain and movable easily sends out ARR the cause of disease, or which kind of activity the grasp person under inspection is being engaged in when showing effect arrhythmia.Way of realization based on the life event online record method of MTK portable telephone device is to be made into a life event online record program software bag based on MTK multimedia mobile communication chip;

5. multimedia master control groupware 10

Multimedia master control groupware 10 comprises processor 40, multi-C vector synthetic blurry electrocardiogram calculation program c1, blurry electrocardiogram calculation media stream media encoders program c2, multimedia blurry electrocardiogram calculation Streaming Media software c3, the blurry electrocardiogram calculation full figure of band ASM nuclear network in real time sensing module c4 and backup blurry electrocardiogram calculation full figure off-line acquisition module c5.

(1) module c1: multi-C vector synthesizes the blurry electrocardiogram calculation program

At first, the life event information that will have the GPS information of position vector, velocity vector, time arrow and have human computer conversation's vector sum time arrow synthesizes " accompanying drawing " of blurry electrocardiogram calculation synchronously by the time shaft mark.Then, with blurry electrocardiogram calculation master map information (have electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector, breathe the vector sum time arrow), blurry electrocardiogram calculation accompanying drawing information (having position vector, velocity vector, life event information and time arrow), synthesize the blurry electrocardiogram calculation full figure synchronously again by the time shaft mark.Its synchronous composition principle as shown in Figure 2.

The application form of the synthetic blurry electrocardiogram calculation full figure method of multi-C vector is the special-purpose software bag that is made into based on the MTK mobile phone.

(2) module c2: blurry electrocardiogram calculation media stream media encoders program

The multimedia player function of MTK mobile phone can be used for multimedia blurry electrocardiogram calculation Streaming Media.Employing based on the Streaming Media encoder sequence (its coding principle is known) of the processor chips of band ARM nuclear to blurry electrocardiogram calculation encode (for example MPEG4 sign indicating number).

(3) module c3: multimedia blurry electrocardiogram calculation Streaming Media software

Employing is decoded to blurry electrocardiogram calculation based on the Streaming Media decoder (its hardware decoding principle is known) of MTK multimedia communication module, real-time play person under inspection's blurry electrocardiogram calculation image on LCDs then, thus realize utilizing the same portable blurry electrocardiogram calculation pick off main frame of mobile phone carries out " cardiac monitoring " to the person under inspection the purpose of carrying that is similar to.

The SMS of MTK mobile phone, media ring function and WAP web browser function, can also be used to the diagnosis that blurry electrocardiogram calculation carried out according to online sensing the electrocardiogram doctor, and instruct the person under inspection to take the knowledge of corresponding emergency treatment, convey to person under inspection or its household, for the patient wins valuable treatment chance in the very first time.

(4) module c4: the blurry electrocardiogram calculation full figure sensing module of networking in real time

The GSM/GPRS radio communication function of MTK mobile phone can be used as a wireless modem of the processor chips of band ARM nuclear; Add the wired MODEM that processor chips were equipped with, just can realize sensing technology with backstage ecg analysis system's short-term or Wireless Networking for band ARM nuclear.That is: by the mode of wire communication (when portable blurry electrocardiogram calculation pick off main frame is in " in platform (on-hook) " position) or radio communication (when portable blurry electrocardiogram calculation pick off main frame is in " destage (off-hook) " position), measured person under inspection's blurry electrocardiogram calculation is sent in real time the ecg analysis system on backstage.

(5) module c5: backup blurry electrocardiogram calculation full figure off-line acquisition module

When needing, the electrocardiogram doctor can obtain the blurry electrocardiogram calculation (this external memory is not need " the read-only type " of plug rather than " the write-then-read type " that Holter needs plug like that) in the external memory that blurs EGC sensor by USB interface as " reading " USB flash disk.

6. at platform/destage status switch circuit 12

At platform/destage status switch circuit 12 are electric shock switches, its outfan links to each other with the processor chips 40 of band ASM nuclear and the interruptive port of MTK multimedia mobile communication module 45 simultaneously, indicates portable blurry electrocardiogram calculation pick off main frame 2 to be in " in platform (indoor) " or " destage (outdoor) " state to the two.

The operation principle of pocket vital sign parameter signals virtual instrument system pick off 1 is:

The lead input (patch electrode) of functional unit 13 of electrode sticks on body surface, and its outfan links to each other with the input of analog quantity electrocardiosignal processing unit 14 and electrocardio sampling neurofuzzy controller 16 simultaneously; An outfan of electrocardio sampling neurofuzzy controller 16 links to each other with the controlling of sampling port of main signal A/D changer 15 and the interruptive port of digital quantity electrocardiosignal processing function unit 17 simultaneously, and another outfan links to each other with the gain control line of analog quantity electrocardiosignal processing function unit 14.

Main signal A/D changer 15 is under the regulation and control of electrocardio sampling neurofuzzy controller 16, continually varying analog quantity electrocardiosignal to input is sampled and digitized, and by the digital quantity electrocardiosignal (the one dimension electrocardio bar figure of promptly not free axle mark) after the data/address bus digital quantity electrocardiosignal processing function unit 17 output conversions to the back-end.As traditional digital electrocardiorecorder of long time journey, the outfan of main signal A/D changer 15 also links to each other with the input of digital quantity electrocardiosignal processing function unit 17, have no progeny in the digital quantity electrocardiosignal processing function unit 17 response electrocardio sampling neurofuzzy controllers 16, in interrupting processing procedure, gather the one dimension electrocardio bar figure (promptly the digital quantity signal of Cai Jiing has only amplitude axle mark and not free axle mark) that is exported from main signal A/D changer 15.Behind the EOI, 17 pairs of electrocardiogram (ECG) datas of being gathered from main signal A/D changer 15 of digital quantity electrocardiosignal processing function unit carry out pretreatment: at first, to carry out high-pass digital (its algorithm principle is known) by the interrupt handling routine electrocardiogram (ECG) data, be used to eliminate baseline drift; Then, filling " timestamp " (promptly the time shaft mark being carried out in the digital quantity vital sign parameter signals pointwise that has amplitude axle mark of being gathered) makes its synthetic two-dimentional vital sign parameter signals bar figure; Again, multichannel (≤9, normally 3) electrocardiogram (ECG) data is expanded to 12 electrocardiogram (ECG) datas that lead (the lead signals derivation formula is known); 12 electrocardiogram (ECG) datas that lead that will directly or indirectly measure at last send virtual instrument system main control unit 19 to.

Meanwhile, blood pressure signal pick off 5, pulse signal pick off 6, blood oxygen signal pick off 7, breath signal pick off 8 form respectively and remove the input port that interferential blood pressure signal, pulse signal, blood oxygen signal and breath signal are delivered to A/D changer 18; Main signal A/D changer 15 is under the regulation and control of " fixed clock frequently ", continually varying analog quantity vital sign parameter signals to input is sampled and digitized, and by the digital quantity vital sign parameter signals after the data/address bus virtual instrument system main control unit 18 output conversions to the back-end; Digital quantity vital sign parameter signals such as 19 pairs of blood pressures of virtual instrument system main control unit, pulse, blood oxygen and breathing filling " timestamp " (promptly the time shaft mark being carried out in the digital quantity vital sign parameter signals pointwise that has amplitude axle mark of being gathered) makes its synthetic two-dimentional vital sign parameter signals bar figure.

The operation principle of portable blurry electrocardiogram calculation pick off main frame 2 and base 3 thereof is:

Virtual instrument system main control unit 19 receives 12 lead two-dimentional electrocardio bar figure and two-dimentional vital sign parameter signals bar figure respectively, and with the two synthetic blurry electrocardiogram calculation " master map "; Then, blurry electrocardiogram calculation " master map " is transmitted to portable blurry electrocardiogram calculation pick off main frame 2, and backs up in the external memory of putting within it by bluetooth communication; When needed, the electrocardiogram doctor also can obtain the blurry electrocardiogram calculation " master map " that is stored in backup in the vital sign parameter signals virtual instrument system main control unit 19 to " off-line " through USB interface as " reading dish " (need not artificial plug).

Multimedia master control groupware 10 respectively with event trace pick off 9, PTK portable telephone device 11, in platform/12 wired linking to each other of destage status switch circuit, and with pocket 1 wireless linking to each other of vital sign parameter signals virtual instrument system pick off.The event trace pick off adopts ultra-large integrated GPS chip (its principle is known) to receive and the GPS positional information of Sensing Satellite emission (comprise longitude, latitude, highly), GPS velocity information (comprising speed, direction) and gps time information (comprising date, time), and sensing is to multimedia terminal master control groupware 10.The person under inspection can be cell phone keyboard input function, mobile phone light pen input function, cell-phone bell output function, a mobile phone screen display output function in the known MTK portable telephone device 11 by its principle, transmit " dumb terminal " through wherein MTK multimedia mobile communication chip, realize the formula of the replying human computer conversation with multimedia master control groupware 10, and with life event " online record " to multimedia master control groupware 10.Behind the blurry electrocardiogram calculation " master map " that multimedia master control groupware 10 wireless receivings are sent in real time to pocket vital sign parameter signals virtual instrument system pick off 1, to carry out synchronous multi-sensor data fusion by the time shaft mark from the GPS spatial positional information and the life event information of the 9 wired receptions of event trace pick off then, again with the synchronously synthetic complete blurry electrocardiogram calculation full figure of these multi-C vectors.

After blurry electrocardiogram calculation forms, portable blurry electrocardiogram calculation pick off main frame 2 is used as multimedia master control groupware 10 as the Streaming Media encoder blurry electrocardiogram calculation is encoded (MPEG4 signal), and is that known MTK multimedia mobile communication chip 11 is used as the Streaming Media decoder blurry electrocardiogram calculation is decoded with its principle.Blurry electrocardiogram calculation after decoding again at the blurry electrocardiogram calculation (except during the human computer conversation) of real-time play person under inspection on the LCDs, thereby realize utilizing the same multimedia human computer conversation's device of mobile phone carries out cardiac monitoring to the person under inspection the purpose of carrying that is similar to.Meanwhile, multimedia terminal master control groupware 10 sends to measured person under inspection's blurry electrocardiogram calculation the ecg analysis system on backstage in real time again by the mode of wire communication (showing that at platform/destage status switch circuit 12 portable blurry electrocardiogram calculation pick off main frame 2 is in " in platform (on-hook) " position) or radio communication (showing that at platform/destage status switch circuit 12 portable blurry electrocardiogram calculation pick off main frame 2 is in " destage (off-hook) " position).

Figure 3 shows that the electrical schematic diagram of the fuzzy EGC sensor of an embodiment of the present utility model.

1. the electrode functional unit 13 that leads includes 23 two modules of patch electrode 22 and lead system.Patch electrode 22 is made up of 7 Zn-Cu crosslinking electrodes, is connected with the high-quality lead of red, white, brown, black, Fructus Citri tangerinae, indigo plant, 7 kinds of colors such as green respectively, and the regulation installation site that adheres to human body is to pick up body surface ecg; Select the regulation of 7 electrode cable triple channel bipolar lead systems (mode of connection) then according to lead system 23, wherein redness and white are formed first passage, brown and black is formed second channel, the blue third channel of forming of Fructus Citri tangerinae normal complexion, and green is no dried electrode grounding.Each outfan of these three passages is all linked the input of programmable amplifier and modulate circuit simultaneously.

2. analog quantity electrocardiosignal processing function unit 14 includes 25 two modules of programmable amplifier 24 and active filter.Programmable amplifier 24 links to each other successively with active filter 25 orders.Programmable amplifier 24 has the range automatic switching function, be controlled by neuron chip hardware 31, its 3 gain control lines link to each other with 3 I/O lines of neuron chip respectively, the lead outfan of functional unit 13 of its input and electrode links to each other, the body surface ecg electric potential signal that picks up carried out preposition amplification and deliver to separately active filter 25, active filter 25 is made up of low pass filter and 50Hz power frequency notch filter " cascade ", is used to filter the myoelectricity interference and the power frequency interference of high frequency.The outfan of the active filter 25 of three passages links to each other with three inputs of one 16 main signal A/D changer 15 respectively.

3. main signal A/D changer 15 is operational amplifier (embodiment type selecting TLC2254, its principle is known), be built-in with sampling hold circuit, and include a multichannel input multiplexer, can change each passage in proper order or freely change some passages with scan function.The control of the sampling gating of main signal A/D changer 15 is by given sample frequency (the maximum sample frequency 〉=4KHz) electrocardiosignal is become to be interrupted the digital quantity signal form that changes by the formal transformation of continually varying analog signals of electrocardiosignal sampling fuzzy controller 16.

4. electrocardio sampling neurofuzzy controller functional unit 16, include by modulate circuit 26, controlling of sampling A/D changer 27, neuron chip hardware 28, indistinct logic computer software module 29 and 30 5 modules of fuzzy control table knowledge base, the lead outfan of functional unit 13 of the input of modulate circuit 26 and electrode links to each other, modulate circuit 26, controlling of sampling A/D changer 27 link to each other successively with neuron chip hardware 28, and indistinct logic computer software module 29 and fuzzy control table knowledge base 30 are carried among the neuron chip hardware 28.Wherein, to include principle be known amplifier and two parts of wave filter to modulate circuit 26; Controlling of sampling A/D changer 27 and neuron chip hardware 29 all are commercial VLSI chip (the embodiment type selecting is MAX1168 and MC143150 respectively, and its principle is known); And indistinct logic computer software module 29 and fuzzy control table knowledge base (30) are the special-purpose software bag based on look-up table.Neuron chip hardware 28 built-in a plurality of interior Timer can be by the output of Timer in built-in these sheets of a multidiameter option switch " program control ".Timer is set to " frequently fixed " clock in the one of sheets, and its outfan is received the sampling gating port of controlling of sampling A/D changer 15; And Timer is set to " frequency conversion " clock in another sheet, and its outfan is received the interruptive port of electrocardio MCU hardware 31 and the sampling gating port of main signal A/D inverter functionality unit 15 simultaneously.The input quantity of electrocardio sampling neurofuzzy controller 16 is the electrocardiosignaies from active filter 25 outputs, the first via of its output is Timer output " frequently fixed " clock signal in first sheet, the second the tunnel is " frequency conversion " clock signal of Timer output in second sheet, and Third Road is 3 I/O lines of neuron chip.

5. digital quantity electrocardiosignal processing function unit 17 includes electrocardio MCU hardware 34 and loading 32 two modules of electrocardiogram (ECG) data process software thereon.The input port of electrocardio MCU hardware 31 links to each other with the output port of main signal A/D changer 15, and the interruptive port of electrocardio MCU hardware 31 links to each other with an outfan of electrocardio sampling neurofuzzy controller 16.Main signal A/D changer 15 is under the regulation and control of electrocardio sampling neurofuzzy controller 16, continually varying analog quantity electrocardiosignal to input is sampled and digitized, and by the digital quantity electrocardiosignal (the one dimension electrocardio bar figure of promptly not free axle mark) after the data/address bus digital quantity electrocardiosignal processing function unit 17 output conversions to the back-end.Have no progeny in the electrocardio MCU hardware 31 response electrocardio sampling neurofuzzy controllers 16, in interrupting processing procedure, gather the one dimension electrocardio bar figure (promptly the digital quantity signal of Cai Jiing has only amplitude axle mark and not free axle mark) that is exported from main signal A/D changer 15.Behind the EOI, electrocardio MCU hardware 31 operation logics are known electrocardiogram (ECG) data process software 32, the electrocardiogram (ECG) data of being gathered from main signal A/D changer 15 is carried out pretreatment: at first, to carry out high-pass digital (its algorithm principle is known) by the interrupt handling routine electrocardiogram (ECG) data, be used to eliminate baseline drift; Then, filling " timestamp " (promptly the time shaft mark being carried out in the digital quantity vital sign parameter signals pointwise that has amplitude axle mark of being gathered) makes its synthetic two-dimentional vital sign parameter signals bar figure; Again, multichannel (≤9, normally 3) electrocardiogram (ECG) data is expanded to 12 electrocardiogram (ECG) datas that lead (the lead signals derivation formula is known); At last, 12 electrocardiogram (ECG) datas that lead that directly or indirectly measure send virtual instrument system main control unit 19 to.

Blood pressure signal pick off 5, pulse signal pick off 6, blood oxygen signal pick off 7, breath signal pick off 8 form respectively and remove interferential blood pressure signal, pulse signal, blood oxygen signal and breath signal, and be sent to the input port of A/D changer 18; A/D changer 18 is under the regulation and control of " fixed clock frequently ", continually varying analog quantity vital sign parameter signals to input is sampled and digitized, and by the digital quantity vital sign parameter signals after the data/address bus virtual instrument system main control unit 19 output conversions to the back-end; Digital quantity vital sign parameter signals such as 19 pairs of blood pressures of virtual instrument system main control unit, pulse, blood oxygen and breathing filling " timestamp " (promptly the time shaft mark being carried out in the digital quantity vital sign parameter signals pointwise that has amplitude axle mark of being gathered) makes its synthetic two-dimentional vital sign parameter signals bar figure.

7. the virtual instrument system main control unit 19, include one-chip computer 33, sign data pretreatment software 34, basic external memory 35, expansion external memory 36, bluetooth communication 38 and 37 6 modules of USB interface.Wherein, one-chip computer 33 links to each other with USB interface 37 with basic external memory 34, expansion external memory 35, bluetooth communication 38 respectively, and sign data pretreatment software 34 is carried among the basic external memory 35 that coils based on flash.One-chip computer 33 is by operation sign data pretreatment software 34, the 12 digital quantity vital sign parameter signals such as electrocardio, blood pressure, pulse, blood oxygen and breathing that lead carried out pretreatment: at first, make these vital sign parameter signals synthesize blurry electrocardiogram calculation " master map "; Then, two-dimentional sign data are transmitted to portable blurry electrocardiogram calculation pick off main frame 2, and backup is in the expansion external memory 36 based on the SD card by bluetooth communication 39; When needed, the electrocardiogram doctor also can be through USB interface as " read dish " (need not artificial plug), and " off-line " obtains backup based on blurry electrocardiogram calculation " master map " data in the expansion external memory 36 of SD card.

8. multimedia master control groupware 10 includes processor chips 40, life event online record program 41, blurry electrocardiogram calculation signal processing software 42, wired MODEM44 and 43 6 modules of USB interface of bluetooth communication 39, band ASM nuclear.Processor chips 40 and wired MODEM44 of bluetooth communication 39, band ASM nuclear all are that (the embodiment type selecting is respectively S3C44BOX and MD5628D-L-C to commercial VLSI chip, its principle is known), and life event online record program 41 and blurry electrocardiogram calculation signal processing software 42 are the special-purpose software bag.

9. event trace pick off 9 is commercial GPS chip (embodiment type selecting MN1010, its principle is known), and MTK portable telephone device (11) includes MTK multimedia mobile communication chip 45 and 46 two modules of multimedia human computer conversation's device with functions such as cell phone keyboard input, the input of mobile phone light pen, cell-phone bell output, mobile phone screen display output.MTK multimedia mobile communication chip 45 also is commercial VLSI chip (embodiment type selecting MT6226, its principle is known).

10. lithium battery DC-DC power supply 20, comprise and reach the CMOS level lithium battery of 1000mah by a power ((analog power ± 5V, A/D a reference source+3V) and the online charger of lithium battery are for pocket vital sign parameter signals virtual instrument system pick off 1 provides four kinds of level to satisfy the digital power of the blue tooth interface of MCU, USB interface+3.6V) and a matched electromagnetic interface filter thereof, three DC-DC charge pump chip.This power supply also is provided with the photoelectric display of undertension, reminds the patient in time to change battery or online charging.

11. miniature ups power 21 is automatically converted to lithium battery power supply circuit, charging and charge protector, automatic timing circuits, power source charges and cell voltage indicating circuit for portable blurry electrocardiogram calculation pick off main frame 2 provides+the continual dc source of 3.6V when including preferential use ac power circuit and power down.When portable blurry electrocardiogram calculation pick off main frame 2 " at platform ", adopt alternating current power supply to carry out AC-DC conversion power supply by miniature ups power 30.And when portable blurry electrocardiogram calculation pick off main frame 2 " destage ", then by lithium battery 50 power supplies.

Figure 4 shows that the technical schematic diagram of electrocardio controlling of sampling neurofuzzy controller of the present utility model.Wherein, Fig. 4 (a) is the basic physical arrangement of electrocardio sampling neurofuzzy controller; Fig. 4 (b) flows through the journey structure for the control of electrocardio sampling neurofuzzy controller; Fig. 4 (c) is the knowledge flow procedure structure of electrocardio sampling neurofuzzy controller.

Electrocardio described in the utility model sampling neurofuzzy controller technology is a kind of integrated technology that has included by the realization of conditioning circuit module 26, controlling of sampling A/D converter module 27, neuron chip hardware module 28, indistinct logic computer software module 29 and 30 5 modules of fuzzy control table knowledge base indistinct logic computer and neutral net.Wherein, the core of nerual network technique is a commercial ultra-large integrated neuron chip (its principle is known), and indistinct logic computer is actually the software (being loaded among the neuron chip) that a cover includes fuzzy control table knowledge base and Fuzzy Logic Reasoning Algorithm.The START port of controlling of sampling A/D changer is controlled by Timer output in the sheet in the neuron chip " fixed frequently (f 〉=4KHz) " clock signal.Narrate the implementation method of fuzzy control table knowledge base, Fuzzy Logic Reasoning Algorithm and neuron chip below respectively:

1. the fuzzy control table knowledge base 30

Fuzzy control table knowledge base described in the utility model is that off-line is set up process, and its conventional design method can adopt look-up table or Mamdani method.The application form of fuzzy control table knowledge base is the special-purpose software bag of making based on look-up table or Mamdani method.

The process of setting up of look-up table is: at first, select the ecg signal data gathered from controlling of sampling A/D changer input language variable for use as fuzzy controller, the sample frequency of controlling main signal A/D changer 4 beats as the output language variable; Secondly, with input language variable numerical value x, it is individual that language value (fuzzy subset) number of input language variable difference value y and output language variable numerical value z is got into N (for example N=7), wherein the fuzzy subset of input language variable difference value y is { " negative big (the electrocardiosignal variation is exceedingly fast) ", in bearing (electrocardiosignal changes very fast) "; " negative little (electrocardiosignal changes fast slightly) "; " zero (electrocardiosignal changes moderate, neither fast nor slow) "; " just little (electrocardiosignal changes slow slightly) "; " center (electrocardiosignal changes slower) "; " honest (electrocardiosignal changes extremely slow) " }; the domain of input language variable difference value y is [∞ ,+∞]; Once more, sum up control experience in the past and obtain the set of a series of fuzzy condition statements; At last, off-line is set up fuzzy control table, and the membership function of its derivation is placed the fuzzy control table knowledge base.

The process of setting up of Mamdani method is: at first, establish and close that the rhythm of the heart is normal, the electrocardiosignal knowledge base of supraventricular arrhythmia, ventricular arrhythmia; Secondly, the medical expert defines categorical conception (as this misty idea of electrocardiosignal " fast ") and corresponding initial membership function thereof according to clinical experience, the electrocardio fuzzy controller then produces other new ideas according to categorical conception by semantic relation, and then draws the initial membership function of new ideas; Once more, the electrocardio fuzzy controller also will be adjusted the initial membership function of each notion by study, to satisfy the actual measurement requirement; At last, the electrocardio fuzzy controller is according to maximum membership grade principle, is given in the fuzzy control table that provides when measuring various electrocardiosignal with its corresponding different sampling frequency signal.

2. Fuzzy Logic Reasoning Algorithm 29

In case the off-line of fuzzy control table knowledge base is set up, the algorithm of fuzzy reasoning so described in the utility model also can adopt look-up table or Mamdani method.The application form of Fuzzy Logic Reasoning Algorithm is the special-purpose software bag of making based on look-up table or Mamdani method.

Look-up table: at first, the kinetic measurement electrocardiosignal; Secondly, will be according to its numerical values recited, by obfuscation the intensity of variation of electrocardiosignal is divided into multiple ambiguity such as " extremely slow ", " slower ", " slow slightly ", " neither fast nor slow ", " fast slightly ", " comparatively fast ", " being exceedingly fast "; Once more, the online simply computing of tabling look-up provides and its corresponding different sampling frequency signal.

The Mamdani method: at first, the various electrocardiosignaies of kinetic measurement; Secondly, will be according to its numerical values recited, by obfuscation the intensity of variation of electrocardiosignal is divided into multiple ambiguity such as " extremely slow ", " slower ", " slow slightly ", " neither fast nor slow ", " fast slightly ", " comparatively fast ", " being exceedingly fast "; Once more, carry out fuzzy reasoning by means such as search knowledge base, couplings; At last, de-fuzzy provides and its corresponding different sampling frequency signal.

3. neuron chip 28

Three microprocessors are equipped with in fuzzy element chip inside, are respectively mac processor (communication processor), network processing unit and application processor.Mac processor is finished medium access control, i.e. between 1 and 2 layer of OSI seven layer protocols (comprising the collision elimination algorithm), it and network processing unit by using the meshwork buffering district to reach the transmission of data.Network processing unit is finished 3～5 layer network agreements of OSI, and it handles processes such as network variable, address, authentication, backstage diagnosis, software timer, network management and route.Network processing unit uses meshwork buffering district and mac processor to communicate, and uses application relief area and application processor to communicate; Application processor is finished user's programming, comprising the service call of user program to operating system.Fuzzy algorithmic approach described in the utility model is carried on the application processor.

Neuron chip is by its a plurality of I/O mouths and other devices interconnect.These pins can dispose I/O mode neatly according to the requirement of different external equipment I/O; Adopt Neuron C language, the programming personnel can define one or more pins as the I/O object.

Neuron chip has two the 16 interior Timer of bit slice.One of them Timer is that multichannel is selected intervalometer, and its input can be passed through a multidiameter option switch, selects one from a plurality of I/O mouths, and output can be connected to specified I/O mouth; Another Timer is special-purpose Timer, and its input and output all are changeless I/O mouths.In this utility model, a Timer is received the START port of controlling of sampling A/D converter with the clock signal of fixed frequency; Another Timer is received on the interruptive port of the START port of main signal A/D converter and one-chip computer frequently with the clock signal of " frequency conversion " rather than " fixed ", thereby can change beat to control A/D " self adaptation " according to the strong and weak size of dynamically determining sample frequency of electrocardiosignal variation tendency.

Figure 5 shows that the technical schematic diagram of multi-C vector data anastomosing algorithm of the present utility model.

The structure of information fusion has various modes, and this utility model has adopted a kind of more general multi-sensor information fusion pattern.Form multisensor syste by n pick off after integrated, n object and environmental information are provided, set up m fusion node that this n information is merged (if having only one to merge node (m=1), then n sensor information all is this input information that merges node) in the system.In Fig. 4, dotted arrow has been represented their roles in the fusion process of each node.The input/output information that merges node generally all is the form of vector.Pick off 1 and 2 output information S1 and S2 are fused into new information S12 merging node 1, and it is fused into new information S123 with the information of pick off 3 at node 2 again.So go down, the information that obtains from n sensing system can finally be fused into an object information S, sends in the amalgamation database.Amalgamation database is deposited the result of information fusion, and the fusion results of intermediate node also can be used as output and directly sends in the amalgamation database, shown in chain-dotted line among Fig. 4.

The several module declarations shown in the right are as follows among Fig. 4:

1. expert knowledge library.In general, the finishing of information fusion, except having suitable blending algorithm, also the domain knowledge that should be necessary exercises supervision and instructs, and these domain knowledges have just constituted expert knowledge library.

2. sensor model storehouse.Wherein deposited the model of various pick offs, described the influence of the characteristic of pick off and various external condition quantitatively sensor characteristics.

3. information reconciliation management.In the ordinary course of things, multisensor often is described the same feature the environment from different coordinate frames, and their represented time, space and expression way may have nothing in common with each other, must they are unified in a common space-time referential.This module has been finished the comprehensive coordinate management of time factor, space factor and work factor, and pick off is selected, and drops into optimum and reliable sensors group to adapt to different conditions.

4. information fusion method.Should adopt diverse ways for different tasks with different objects, perhaps comprehensively use several method.Information fusion method is the core of multi-sensor information fusion.

The above be this utility model and and the concrete elaboration of preferred embodiments, right its is not only to terminate in above-mentioned description and embodiment in order to limit this utility model spirit with the invention entity, can make various improvement and conversion on this basis for the technical staff of one's own profession.Be with, the modification of being done in not breaking away from this utility model spirit and scope all should be included in the claim scope of the present utility model.

Claims (9)

1. intelligent blurry electrocardiogram calculation and measurement sensor is characterized in that:

Include and put pocket vital sign parameter signals virtual instrument system pick off (1), portable blurry electrocardiogram calculation pick off main frame (2) and portable blurry electrocardiogram calculation pick off main frame base (3) the three big parts that hang on the human body; Wherein, the electrocardio bar map sensor (4) in the described vital sign parameter signals virtual instrument system pick off (1) include one can be " self adaptation " according to electrocardiosignal strong and weak and signal change size come the amplitude range of dual regulation programmable amplifier and main signal A/D changer the time apart from the electrocardio of the length neurofuzzy controller (16) of sampling.

2. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 1 is characterized in that between (2) two split type parts of vital sign parameter signals virtual instrument system pick off (1) and blurry electrocardiogram calculation pick off main frame be wireless connections.

3. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2, it is characterized in that described vital sign parameter signals virtual instrument system pick off (1) is built-in with digital quantity electrocardiosignal processing function unit (17) and virtual instrument system main control unit (19); The two has all loaded " timestamp " algorithm, the former export be existing amplitude axle mark again during countershaft mark and sampling sometimes apart from the electrocardio bar figure master map data of " elongated ", the latter exported be existing amplitude axle mark again during countershaft mark and sampling sometimes apart from the sign bar figure accompanying drawing data that blood pressure vector, pulse vector, blood oxygen vector sum are breathed vector that have of " fixed length ".

4. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2, it is characterized in that, described vital sign parameter signals virtual instrument system pick off (1), it is characterized in that it has adopted the multi-sensor data blending algorithm that electrocardio bar diagram data and sign bar diagram data have been carried out data fusion, making its output is existing amplitude axle mark countershaft mark and have the two-dimentional sign bar diagram data that electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector sum are breathed vector sometimes again.

5. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2 is characterized in that, described blurry electrocardiogram calculation pick off main frame (2) adopts the GPS chip as person under inspection's event trace pick off, and is used to collect person under inspection's event trace information.

6. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2, it is characterized in that, described blurry electrocardiogram calculation pick off main frame (2), the human computer conversation's parts that adopt MTK portable telephone device (11) self are as person under inspection's life event online record device, and are used to collect person under inspection's activity description information.

7. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2, it is characterized in that, described blurry electrocardiogram calculation pick off main frame (2), adopted the multi-sensor data blending algorithm that two-dimentional sign bar diagram data, person under inspection's event trace information and activity description information have been carried out data fusion, make its output be have electrocardial vector, blood pressure vector, pulse vector, blood oxygen vector, breathe vector, event trace is vectorial, the blurry electrocardiogram calculation full figure data of life event vector sum time arrow.

8. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2 is characterized in that, described blurry electrocardiogram calculation pick off main frame (2), and blurry electrocardiogram calculation full figure image can multimedia 12 leads.

9. intelligent blurry electrocardiogram calculation and measurement sensor according to claim 2, it is characterized in that, described vital sign parameter signals virtual instrument system pick off (1) and blurry electrocardiogram calculation pick off main frame (2), it is characterized in that the electrocardiogram doctor also all can be when extracting backup sign bar diagram data or backup blurry electrocardiogram calculation full figure data through the USB interface off-line afterwards, manually its built-in external memory of plug.

Images