CN103278702A - Intelligent detection unit, method and system capable of extracting PACE wave - Google Patents
Intelligent detection unit, method and system capable of extracting PACE wave Download PDFInfo
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Abstract
The invention provides an intelligent detection unit, method and system capable of extracting a PACE wave. The intelligent detection unit capable of extracting the PACE wave comprises a digital filtering unit, an edge reinforcing and sharpening unit, a PACE wave shape similarity extracting unit and a PACE wave characteristic parameter extracting unit, wherein the digital filtering unit is used for filtering high-frequency and low-frequency noise in a PACE wave digital signal, the edge reinforcing and sharpening unit is used for conducting steepening processing on a rising edge/ a falling edge of the PACE wave digital signal which is filtered, restraining low-frequency components and enabling the edge of the signal to be steeper, and the PACE wave characteristic parameter extracting unit is used for extracting PACE wave characteristic parameters out of the detected PACE wave digital signal. The intelligent detection unit, method and system capable of extracting the PACE wave has the advantages that the intelligent detection unit is stable in performance and can extract the PACE wave out of the interfered signal, work efficiency is improved, and a user can conveniently conduct using.
Description
Technical field
The present invention relates to field of medical, relate in particular to Intelligent Measurement unit, the method and system of extracting the PACE ripple.
Background technology
Some patient triggers heartbeat by pacemaker, and the physiological signal that the electric pulse (being the PACE ripple) that pacemaker produces is accompanied by human body self is measured electric circuit inspection together, and the aliasing effect of sort signal will have influence on the measurement of electrocardiosignal; When the PACE wave amplitude was big, the PACE ripple also can be modulated onto on the respiratory wave, influences respiratory waveform.
May be subjected to the influence of interference sources such as high-frequency electrical scalpel, power frequency in the Medical Devices use, these interference sources very likely produce and signal like the PACE feature class, false PACE phenomenon occurs.For guaranteeing the accuracy of electrocardio, respiration measurement, the pick-up unit that design a stable performance, can extract the PACE ripple from disturbed signal has great importance.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of Intelligent Measurement unit of the PACE of extraction ripple.
The invention provides a kind of Intelligent Measurement unit of the PACE of extraction ripple, comprise that digital filtering unit, edge strengthen sharpening unit, PACE waveform attitude similarity extraction unit, PACE wave characteristic parameter extraction unit, described digital filtering unit input end is used for receiving PACE wave number word signal, described digital filtering unit is used for PACE wave number word signal is filtered the low-and high-frequency noise, and described digital filtering unit output terminal strengthens sharpening unit input end with described edge and links to each other; Described edge strengthens the sharpening unit and is used for the rising/negative edge of the PACE wave number word signal after the filtering is carried out precipitousization processing, suppresses low-frequency component, makes edges of signals more precipitous, and described edge strengthens sharpening unit output terminal and links to each other with described PACE waveform attitude similarity extraction unit input end; Described PACE waveform attitude similarity extraction unit is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude, and described PACE waveform attitude similarity extraction unit output terminal links to each other with described PACE wave characteristic parameter extraction unit input end; Described PACE wave characteristic parameter extraction unit is used for detected PACE wave number word signal extraction PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width, amplitude and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
As a further improvement on the present invention, described digital filtering unit is the logical unit of the logical filter of band.
The present invention also provides a kind of intelligent detecting method of the PACE of extraction ripple, comprises the steps:
Q1. the digital filtering unit receives PACE wave number word signal, by the digital filtering unit PACE wave number word signal is filtered the low-and high-frequency noise;
Q2. carry out precipitousization processing, suppress low-frequency component, make edges of signals more precipitous by the rising/negative edge of enhancing sharpening unit, edge with the PACE wave number word signal after the filtering;
Q3. PACE waveform attitude similarity extraction unit is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, and described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude;
Q4. be used for detected PACE wave number word signal extraction PACE wave characteristic parameter by PACE wave characteristic parameter extraction unit;
Described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
The present invention also provides a kind of detection system with described Intelligent Measurement unit, comprise PACE ripple collecting unit, mode determination, conventional PACE ripple detecting unit, AD conversion unit, PACE ripple output unit, described PACE ripple collecting unit is used for gathering PACE mode analog signal, and described PACE ripple collecting unit output terminal links to each other with described mode determination input end; Described mode determination is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit or Intelligent Measurement unit to detect, and described mode determination output terminal links to each other with described AD conversion unit input end with described conventional PACE ripple detecting unit input end respectively; Described conventional PACE ripple detecting unit is used for reading PACE mode analog signal to obtain PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described AD conversion unit input end links to each other with described mode determination output terminal with described PACE ripple collecting unit output terminal respectively, described AD conversion unit is used for converting the PACE mode analog signal of described PACE ripple collecting unit output to digital signal, and described AD conversion unit is used for receiving the steering order that described mode determination is sent, and described AD conversion unit output terminal links to each other with the digital filtering unit input end of described Intelligent Measurement unit; Described PACE ripple output unit input end links to each other with the PACE wave characteristic parameter extraction unit output terminal of described conventional PACE ripple detecting unit output terminal and described Intelligent Measurement unit respectively, described PACE ripple output unit is used for output PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
As a further improvement on the present invention, described mode determination comprises Hi-pass filter, comparer, judging unit, described Hi-pass filter input end links to each other with described PACE ripple collecting unit output terminal, described Hi-pass filter output terminal links to each other with described comparator input terminal, described comparer is used for converting PACE mode analog signal to square-wave signal, and described comparator output terminal links to each other with described judging unit input end; Described judging unit is used for judging whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope, if, square-wave signal with the PACE ripple inputs in the described conventional PACE ripple detecting unit so, otherwise described judging unit starts described PACE ripple collecting unit output PACE mode analog signal to described AD conversion unit.
As a further improvement on the present invention, this detection system also comprises the activation unit, described activation unit input end links to each other with described judging unit output terminal, described activation unit output terminal links to each other with described AD conversion unit input end, described activation unit is used for receiving the steering order of described judging unit, and described activation unit is used for activating described Intelligent Measurement cell operation.
As a further improvement on the present invention, this detection system also comprises divider resistance, and described divider resistance input end links to each other with described PACE ripple collecting unit output terminal, and described divider resistance output terminal links to each other with described AD conversion unit input end.
As a further improvement on the present invention, described PACE ripple collecting unit comprises original signal collecting unit, signal condition unit, described original signal collecting unit output terminal links to each other with described signal condition unit input end, and described original signal collecting unit is used for gathering original electrocardiosignal; Described signal condition unit is used for the PACE ripple is separated and amplification from original electrocardiosignal, and described signal condition unit output terminal links to each other with described divider resistance input end with described Hi-pass filter input end respectively.
As a further improvement on the present invention, described signal condition unit comprises the difference bandpass amplifier.
The present invention also provides a kind of method with raising PACE ripple detection efficiency of intelligent detecting method, comprises the steps:
A. the original signal collecting unit is gathered original electrocardiosignal;
B. described mode determination is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit or Intelligent Measurement unit to detect;
C. by PACE ripple output unit output PACE wave characteristic parameter, described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
As a further improvement on the present invention, described step B comprises the steps: that mode determination is used for converting PACE mode analog signal to square-wave signal, and mode determination judges whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope; If the square-wave signal with PACE mode analog signal inputs to conventional PACE ripple detecting unit so; Otherwise, convert the PACE mode analog signal of PACE ripple collecting unit output to digital signal, and activate the Intelligent Measurement unit, the digital signal of PACE mode analog signal is inputed to the Intelligent Measurement unit carry out intelligent detecting method.
The invention has the beneficial effects as follows: Intelligent Measurement of the present invention unit comprises that digital filtering unit, edge strengthen sharpening unit, PACE waveform attitude similarity extraction unit, PACE wave characteristic parameter extraction unit; The digital filtering unit has solved the complicacy of hardware filtering device design, the edge strengthens the sharpening unit makes edges of signals more precipitous, the PACE wave characteristic is more obvious, PACE waveform attitude similarity extraction unit mates detected signal and template, unmatched signal is rejected, can well remove the false PACE problem that undesired signal causes like this, improve the accuracy that detects; The not only stable performance of Intelligent Measurement of the present invention unit, can from disturbed signal, extract the PACE ripple, increase work efficiency, user-friendly.
Description of drawings
Fig. 1 is Intelligent Measurement of the present invention unit theory diagram.
Fig. 2 is detection system theory diagram of the present invention.
Fig. 3 is intelligent detecting method process flow diagram of the present invention.
Fig. 4 is the method flow diagram that the present invention improves PACE ripple detection efficiency.
Embodiment
As shown in Figure 1, the invention discloses a kind of Intelligent Measurement unit 308 of the PACE of extraction ripple, comprise that digital filtering unit, edge strengthen sharpening unit 402, PACE waveform attitude similarity extraction unit 403, PACE wave characteristic parameter extraction unit 404, described digital filtering unit input end is used for receiving PACE wave number word signal, described digital filtering unit is used for PACE wave number word signal is filtered the low-and high-frequency noise, and described digital filtering unit output terminal strengthens sharpening unit 402 input ends with described edge and links to each other; Described edge strengthens sharpening unit 402 and is used for the rising/negative edge of the PACE wave number word signal after the filtering is carried out precipitousization processing, suppresses low-frequency component, makes edges of signals more precipitous, and described edge strengthens sharpening unit 402 output terminals and links to each other with described PACE waveform attitude similarity extraction unit 403 input ends; Described PACE waveform attitude similarity extraction unit 403 is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude, and described PACE waveform attitude similarity extraction unit 403 output terminals link to each other with described PACE wave characteristic parameter extraction unit 404 input ends; Described PACE wave characteristic parameter extraction unit 404 is used for detected PACE wave number word signal extraction PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width, amplitude and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
Described digital filtering unit is the logical unit 401 of the logical filter of band.
The PACE numeral that logical 401 pairs of the unit of the logical filter of band collect is carried out digital filtering, filters the low-and high-frequency noise, and digital filtering has solved the complicacy of hardware filtering device design.
Described edge strengthens sharpening unit 402 and is used for the signal edge (being the rising/negative edge of signal) after the filtering is carried out precipitousization processing, suppress low-frequency component, make edges of signals more precipitous, the PACE wave characteristic is more obvious, tentatively determines the pacemaker impulse position.
Described PACE waveform attitude similarity extraction unit 403 is used for making template according to PACE pulse mode (characteristics such as pulse rising/negative edge, pulsewidth, amplitude) in advance, detected signal and template are mated, unmatched signal is rejected, can well remove the false PACE problem that undesired signal causes like this, improve the accuracy that detects.
As shown in Figure 2, the invention also discloses a kind of detection system with described Intelligent Measurement unit 308, comprise PACE ripple collecting unit, mode determination 303, conventional PACE ripple detecting unit 304, AD conversion unit 307, PACE ripple output unit 309, described PACE ripple collecting unit is used for gathering PACE mode analog signal, and described PACE ripple collecting unit output terminal links to each other with described mode determination 303 input ends; Described mode determination 303 is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit 304 or Intelligent Measurement unit 308 to detect, and described mode determination 303 output terminals link to each other with described AD conversion unit 307 input ends with described conventional PACE ripple detecting unit 304 input ends respectively; Described conventional PACE ripple detecting unit 307 is used for reading PACE mode analog signal to obtain PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described AD conversion unit 307 input ends link to each other with described mode determination 303 output terminals with described PACE ripple collecting unit output terminal respectively, described AD conversion unit 307 is used for converting the PACE mode analog signal of described PACE ripple collecting unit output to digital signal, and described AD conversion unit 307 is used for receiving the steering order that described mode determination 303 is sent, and described AD conversion unit 307 output terminals link to each other with the digital filtering unit input end of described Intelligent Measurement unit 308; Described PACE ripple output unit 309 input ends link to each other with PACE wave characteristic parameter extraction unit 404 output terminals of described conventional PACE ripple detecting unit 304 output terminals and described Intelligent Measurement unit 308 respectively, described PACE ripple output unit 309 is used for output PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
Described mode determination 303 comprises Hi-pass filter 3031, comparer 3032, judging unit 3033, described Hi-pass filter 3031 input ends link to each other with described PACE ripple collecting unit output terminal, described Hi-pass filter 3031 output terminals link to each other with described comparer 3032 input ends, described comparer 3032 is used for converting PACE mode analog signal to square-wave signal, and described comparer 3032 output terminals link to each other with described judging unit 3033 input ends; Described judging unit 3033 is used for judging whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope, if, square-wave signal with the PACE ripple inputs in the described conventional PACE ripple detecting unit 304 so, otherwise described judging unit 3033 starts described PACE ripple collecting unit output PACE mode analog signal to described AD conversion unit 307.
This detection system also comprises activation unit 305, described activation unit 305 input ends link to each other with described judging unit 3033 output terminals, described activation unit 305 output terminals link to each other with described AD conversion unit 307 input ends, described activation unit 305 is used for receiving the steering order of described judging unit 3033, and described activation unit 305 is used for activating 308 work of described Intelligent Measurement unit.
This detection system also comprises divider resistance 306, and described divider resistance 306 input ends link to each other with described PACE ripple collecting unit output terminal, and described divider resistance 306 output terminals link to each other with described AD conversion unit 307 input ends.
Described PACE ripple collecting unit comprises original signal collecting unit 301, signal condition unit 302, described original signal collecting unit 301 output terminals link to each other with described signal condition unit 302 input ends, and described original signal collecting unit 301 is used for gathering original electrocardiosignal; Described signal condition unit 302 is used for the PACE ripple is separated and amplification from original electrocardiosignal, and described signal condition unit 302 output terminals link to each other with described divider resistance 306 input ends with described Hi-pass filter 3031 input ends respectively.
Described signal condition unit 302 comprises the difference bandpass amplifier.
Original signal collecting unit 301 realizes that the PACE of all electrocardiac channels detects, and breathes with electrocardio and shares electrocardioelectrode, has detected the PACE on the electrocardiac channel and has also just detected the PACE on the respiration channel.For the complexity that reduces hardware circuit with reduce hardware cost, by using analog switch each electrocardiac channel is switched, realized that a signal conditioning circuit finishes the task of multi-channel detection.
Original signal collecting unit 301 is gathered PACE ripple signals, and because PACE ripple signal and electrocardiosignal belong to electric signal together, therefore both aliasings can gather the PACE signal from original electrocardiosignal.
The gain of design difference bandpass amplifier need be considered the signal amplitude scope of PACE ripple, can detect to guarantee weak PACE ripple signal, and strong PACE ripple signal can not cause circuit saturated (show as amplifier and export rail to).Differential bandpass filter not only can realize the effect that the PACE signal amplifies, and can also suppress common-mode signal, has expanded the signal input dynamic range, has brought into play the advantage of hardware.
Hi-pass filter 3031 allows the PACE ripple after 302 amplifications of signal condition unit to pass through fully, and electrocardiosignal then is suppressed; 3032 of comparers are that the PACE ripple is changed into square wave, by this conversion, can obtain these three basic parameters of rising/negative edge time, pulse width and frequency of PACE signal.
The PACE ripple frequency that pacemaker produces and pulse width have comparatively fixing scope, therefore the authenticity that can judge the PACE signal according to frequency and the pulsewidth of square wave.Judging unit 3033 judges that PACE ripple frequency and pulsewidth all are in frequency preset and the pulse width threshold scope, if detected PACE ripple frequency and pulsewidth all are in the threshold range, then think to have detected real PACE ripple signal, conventional PACE ripple detecting unit 304 is enabled the detection that conventional PACE detecting pattern can be realized the PACE ripple; Under conventional PACE detecting pattern, conventional PACE ripple detecting unit 304 is by directly reading the PACE square-wave signal to obtain PACE wave characteristic parameter: rising/negative edge, pulse width and frequency.Under conventional PACE detecting pattern, be applied to the less conventional occasion of interference strength, can realize the signal fast detecting, saved software resource.
If detected PACE ripple frequency and pulsewidth think that then the PCAE ripple is disturbed not in the preset threshold value scope, activate unit 305 and activate Intelligent Measurement unit 308, start intelligent PACE detecting pattern.
Intelligence PACE detecting pattern is applied to the bigger occasion of interference strength, when serious interference, conventional PACE detecting pattern can't obtain correct PACE ripple, and intelligent PACE detecting pattern carries out digital signal processing by software to the PACE ripple, then can from disturbed PACE ripple, extract correct PACE signal, obtain PACE wave characteristic parameter.Intelligence PACE detecting pattern then is directly to carry out signal by the simulating signal of ADC collection PACE ripple to handle.Because signal condition unit 102 is the good dynamic range of acquisition, its signal output amplitude can be near the amplifier rail.
For satisfying the requirement of analog to digital conversion input range, signal to 302 outputs of signal condition unit carries out electric resistance partial pressure to meet the demands by divider resistance 306, PACE signal amplitude after the dividing potential drop is in the suitable input range scope of analog to digital converter 307 requirements, has reduced the requirement of analog-to-digital conversion definition.
When activating unit 305 and activate intelligent PACE detecting pattern, analog to digital converter 307 will be the PACE digital signal through the PACE analog signal conversion after divider resistance 306 dividing potential drops.
As shown in Figure 3, the invention also discloses a kind of intelligent detecting method of the PACE of extraction ripple, comprise the steps:
Step W1, the digital filtering unit receives PACE wave number word signal, by the digital filtering unit PACE wave number word signal is filtered the low-and high-frequency noise;
Step W2 carries out precipitousization processing, suppresses low-frequency component, makes edges of signals more precipitous by the rising/negative edge of enhancing sharpening unit, edge with the PACE wave number word signal after the filtering;
Step W3, PACE waveform attitude similarity extraction unit is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, and described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude;
Step W4 is used for detected PACE wave number word signal extraction PACE wave characteristic parameter by PACE wave characteristic parameter extraction unit;
Described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
As shown in Figure 4, the invention also discloses a kind of method with raising PACE ripple detection efficiency of described intelligent detecting method, comprise the steps:
In step S1, the original signal collecting unit is gathered original electrocardiosignal;
In step S2, described mode determination is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit or Intelligent Measurement unit to detect;
In step S3, by PACE ripple output unit output PACE wave characteristic parameter, described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
Described step S2 comprises the steps: that mode determination is used for converting PACE mode analog signal to square-wave signal, and mode determination judges whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope; If the square-wave signal with PACE mode analog signal inputs to conventional PACE ripple detecting unit so; Otherwise, convert the PACE mode analog signal of PACE ripple collecting unit output to digital signal, and activate the Intelligent Measurement unit, the digital signal of PACE mode analog signal is inputed to the Intelligent Measurement unit carry out intelligent detecting method.
Detection system of the present invention adopts way of hardware and software combination that the PACE ripple is detected, and realizes the switching of conventional PACE detecting pattern and intelligent PACE detecting pattern automatically.Under noiseless situation, start the fast detecting that conventional PACE detecting pattern is realized the PACE ripple automatically; Under disturbed situation, start intelligent PACE detecting pattern, the PACE ripple is carried out Intelligent Measurement.
Detection system of the present invention has been used the dirigibility of reliability and the software algorithm of hardware, has realized the accurate detection effect of PACE ripple.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (11)
1. Intelligent Measurement unit that extracts the PACE ripple, it is characterized in that: comprise that digital filtering unit, edge strengthen sharpening unit, PACE waveform attitude similarity extraction unit, PACE wave characteristic parameter extraction unit, described digital filtering unit input end is used for receiving PACE wave number word signal, described digital filtering unit is used for PACE wave number word signal is filtered the low-and high-frequency noise, and described digital filtering unit output terminal strengthens sharpening unit input end with described edge and links to each other; Described edge strengthens the sharpening unit and is used for the rising/negative edge of the PACE wave number word signal after the filtering is carried out precipitousization processing, suppresses low-frequency component, makes edges of signals more precipitous, and described edge strengthens sharpening unit output terminal and links to each other with described PACE waveform attitude similarity extraction unit input end; Described PACE waveform attitude similarity extraction unit is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude, and described PACE waveform attitude similarity extraction unit output terminal links to each other with described PACE wave characteristic parameter extraction unit input end; Described PACE wave characteristic parameter extraction unit is used for detected PACE wave number word signal extraction PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width, amplitude and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
2. the Intelligent Measurement unit of extraction according to claim 1 PACE ripple, it is characterized in that: described digital filtering unit is the logical unit of the logical filter of band.
3. the intelligent detecting method by claim 1 or 2 described Intelligent Measurement unit extraction PACE ripple is characterized in that, comprises the steps:
Q1. the digital filtering unit receives PACE wave number word signal, by the digital filtering unit PACE wave number word signal is filtered the low-and high-frequency noise;
Q2. carry out precipitousization processing, suppress low-frequency component, make edges of signals more precipitous by the rising/negative edge of enhancing sharpening unit, edge with the PACE wave number word signal after the filtering;
Q3. PACE waveform attitude similarity extraction unit is manufactured with template according to PACE wave impulse form in advance, detected PACE wave number word signal and template are mated, unmatched PACE wave number word signal is rejected, and described PACE wave impulse form comprises pulse rising/negative edge, pulse width, amplitude;
Q4. be used for detected PACE wave number word signal extraction PACE wave characteristic parameter by PACE wave characteristic parameter extraction unit;
Described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described PACE ripple is the electric pulse that pacemaker produces.
4. detection system with each described Intelligent Measurement unit of claim 1 to 2, it is characterized in that: comprise PACE ripple collecting unit, mode determination, conventional PACE ripple detecting unit, AD conversion unit, PACE ripple output unit, described PACE ripple collecting unit is used for gathering PACE mode analog signal, and described PACE ripple collecting unit output terminal links to each other with described mode determination input end; Described mode determination is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit or Intelligent Measurement unit to detect, and described mode determination output terminal links to each other with described AD conversion unit input end with described conventional PACE ripple detecting unit input end respectively; Described conventional PACE ripple detecting unit is used for reading PACE mode analog signal to obtain PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency; Described AD conversion unit input end links to each other with described mode determination output terminal with described PACE ripple collecting unit output terminal respectively, described AD conversion unit is used for converting the PACE mode analog signal of described PACE ripple collecting unit output to digital signal, and described AD conversion unit is used for receiving the steering order that described mode determination is sent, and described AD conversion unit output terminal links to each other with the digital filtering unit input end of described Intelligent Measurement unit; Described PACE ripple output unit input end links to each other with the PACE wave characteristic parameter extraction unit output terminal of described conventional PACE ripple detecting unit output terminal and described Intelligent Measurement unit respectively, described PACE ripple output unit is used for output PACE wave characteristic parameter, and described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
5. the detection system with Intelligent Measurement unit according to claim 4, it is characterized in that: described mode determination comprises Hi-pass filter, comparer, judging unit, described Hi-pass filter input end links to each other with described PACE ripple collecting unit output terminal, described Hi-pass filter output terminal links to each other with described comparator input terminal, described comparer is used for converting PACE mode analog signal to square-wave signal, and described comparator output terminal links to each other with described judging unit input end; Described judging unit is used for judging whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope, if, square-wave signal with the PACE ripple inputs in the described conventional PACE ripple detecting unit so, otherwise described judging unit starts described PACE ripple collecting unit output PACE mode analog signal to described AD conversion unit.
6. the detection system with Intelligent Measurement unit according to claim 5, it is characterized in that: this detection system also comprises the activation unit, described activation unit input end links to each other with described judging unit output terminal, described activation unit output terminal links to each other with described AD conversion unit input end, described activation unit is used for receiving the steering order of described judging unit, and described activation unit is used for activating described Intelligent Measurement cell operation.
7. the detection system with Intelligent Measurement unit according to claim 6, it is characterized in that: this detection system also comprises divider resistance, described divider resistance input end links to each other with described PACE ripple collecting unit output terminal, and described divider resistance output terminal links to each other with described AD conversion unit input end.
8. the detection system with Intelligent Measurement unit according to claim 7, it is characterized in that: described PACE ripple collecting unit comprises original signal collecting unit, signal condition unit, described original signal collecting unit output terminal links to each other with described signal condition unit input end, and described original signal collecting unit is used for gathering original electrocardiosignal; Described signal condition unit is used for the PACE ripple is separated and amplification from original electrocardiosignal, and described signal condition unit output terminal links to each other with described divider resistance input end with described Hi-pass filter input end respectively.
9. the detection system with Intelligent Measurement unit according to claim 8, it is characterized in that: described signal condition unit comprises the difference bandpass amplifier.
10. the method with raising PACE ripple detection efficiency of the described intelligent detecting method of claim 3 is characterized in that, comprises the steps:
A. the original signal collecting unit is gathered original electrocardiosignal;
B. described mode determination is used for judging that the PACE ripple adopts conventional PACE ripple detecting unit or Intelligent Measurement unit to detect;
C. by PACE ripple output unit output PACE wave characteristic parameter, described PACE wave characteristic parameter comprises rising/negative edge, pulse width and frequency.
11. the method for raising PACE ripple detection efficiency according to claim 10, it is characterized in that, described step B comprises the steps: that mode determination is used for converting PACE mode analog signal to square-wave signal, and mode determination judges whether PACE ripple frequency and pulsewidth are in frequency preset and the pulse width threshold scope; If the square-wave signal with PACE mode analog signal inputs to conventional PACE ripple detecting unit so; Otherwise, convert the PACE mode analog signal of PACE ripple collecting unit output to digital signal, and activate the Intelligent Measurement unit, the digital signal of PACE mode analog signal is inputed to the Intelligent Measurement unit carry out intelligent detecting method.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103977503A (en) * | 2014-05-16 | 2014-08-13 | 深圳市理邦精密仪器股份有限公司 | PACE wave detection device and method low in cost |
| CN106124866A (en) * | 2016-06-14 | 2016-11-16 | 武汉华中数控股份有限公司 | A kind of periodic signal waves test device |
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| CN103977503B (en) * | 2014-05-16 | 2016-02-17 | 深圳市理邦精密仪器股份有限公司 | A kind of PACE ripple checkout gear of low cost and method |
| CN106124866A (en) * | 2016-06-14 | 2016-11-16 | 武汉华中数控股份有限公司 | A kind of periodic signal waves test device |
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