CN109843158A - Judge the whether effective method and device of pulse wave - Google Patents
Judge the whether effective method and device of pulse wave Download PDFInfo
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- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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Abstract
It is a kind of to judge the whether effective method and device of pulse wave, wherein this method comprises: obtaining the original waveform (S102) of the pulse wave in target individual preset time period；The signal characteristic (S104) of pulse wave is extracted from original waveform；According to the signal characteristic of extraction, judge whether pulse wave is effective pulse wave (S106).It is difficult to determine no the technical issues of being significant wave from some collected pulse wave of individual as the signal characteristic of pulse wave in the related technology caused by this method solve varying with each individual.
Description
The present invention relates to field of signal processing, judge the whether effective method and device of pulse wave in particular to a kind of.
Pulse wave is a kind of time varying signal in non-critical period.I.e., pulse wave has certain periodic feature, it is influenced simultaneously by changes in heart rate and other physiological activities (such as breathing and muscular movement), for the one-shot measurement of the same person, the pulse wave signal form of heartbeat each time is also slightly different, for different people, being had differences by physiological system is influenced, and pulse wave form is more different from feature.
When using sensor (such as pressure sensor, photoelectric sensor, radio sensor etc.) detection human pulse wave, generally require to understand whether current collected signal is effective pulse wave signal in real time.And since pulse wave has above-mentioned variation characteristic, judge that the collected signal of sensor is that effective pulse wave difficulty is larger.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
Judge the whether effective method and device of pulse wave the embodiment of the invention provides a kind of, at least solve to be difficult to caused by varying with each individual as the signal characteristic of pulse wave in the related technology to determine from some collected pulse wave of individual it is no be significant wave the technical issues of.
According to an aspect of an embodiment of the present invention, it provides and a kind of judges the whether effective method of pulse wave, comprising: obtain the original waveform of target individual pulse wave within a preset period of time；The signal characteristic of above-mentioned pulse wave is extracted from above-mentioned original waveform；According to the signal characteristic of extraction, judge whether above-mentioned pulse wave is effective pulse wave.
Further, the signal characteristic that above-mentioned pulse wave is extracted from above-mentioned original waveform includes: according to the original waveform of above-mentioned pulse wave, is that F_s point is per second with sample rate, carries out digitized processing to N seconds long above-mentioned pulse waves, obtain N*F_s sampled point；The maximum value, minimum value and median of amplitude are found out from above-mentioned N*F_s sampled point, according to the signal characteristic of extraction, judge whether above-mentioned pulse wave is that effective pulse wave includes: calculating and judges whether [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] is more than preset difference value；If not, it is determined that above-mentioned pulse wave is invalid pulse wave.
Further, it is calculating and is judging whether [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] is more than the above method after preset difference value further include: if so, sorting to above-mentioned N*F_s sampled point；The signal of preset length is taken out from the above-mentioned N*F_s sampled point after sequence；Whether the ratio of the standard deviation and its mean value that calculate and judge the signal for the above-mentioned preset length taken out is less than the first default ratio；If not, it is determined that above-mentioned pulse wave is invalid pulse wave.
Further, after whether the ratio for calculating and judging the standard deviation of signal for the above-mentioned preset length taken out and its mean value is less than the first default ratio, the above method further include: if so, finding out all main peak points from above-mentioned N*F_s sampled point；The main peak point that amplitude is lower than default amplitude is deleted from above-mentioned all main peak points；Whether within a preset range judgement deletes amplitude main peak number corresponding lower than main peak point remaining after the main peak point of above-mentioned default amplitude；If not, it is determined that above-mentioned pulse wave is invalid pulse wave.
Further, the corresponding main peak number of remaining main peak point is whether it is within the preset range after judgement deletes amplitude lower than the main peak point of above-mentioned default amplitude, the above method further include: if so, deleting the wave crest pair of all length exception with two neighboring main peak for a wave crest pair；Whether the wave crest that judgement deletes above-mentioned all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair；If not, it is determined that above-mentioned pulse wave is invalid pulse wave.
Further, after whether the wave crest that judgement deletes above-mentioned all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair, the above method further include: if so, calculating and judging whether above-mentioned remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；If not, it is determined that above-mentioned pulse wave is invalid pulse wave；If so, determining that above-mentioned pulse wave is effective pulse wave.
Further, after determining that above-mentioned pulse wave is effective pulse wave, the above method further include: if continuously determining out (M-1) a effective pulse wave again, according to M currently determined effectively wave structure one effective pulse wave template of pulse；One wave crest of subsequent every acquisition is to all carrying out similarity-rough set with above-mentioned effective pulse wave template；If the similarity of both comparison result displays reaches predetermined threshold value, it is determined that the wave crest is effective pulse wave to corresponding pulse wave.
According to another aspect of an embodiment of the present invention, it additionally provides and a kind of judges the whether effective device of pulse wave, comprising: acquiring unit, for obtaining the original waveform of target individual pulse wave within a preset period of time；Extraction unit, for extracting the signal characteristic of above-mentioned pulse wave from above-mentioned original waveform；Judging unit judges whether above-mentioned pulse wave is effective pulse wave for the signal characteristic according to extraction.
Further, said extracted unit includes: sampling module, is that F_s point is per second with sample rate for the original waveform according to above-mentioned pulse wave, carries out digitized processing to N seconds long above-mentioned pulse waves, obtain N*F_s sampled point；First extraction module, for finding out the maximum value, minimum value and median of amplitude from above-mentioned N*F_s sampled point, above-mentioned judging unit includes: first judgment module, for calculating and judging whether [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] is more than preset difference value；First determining module is used in a case of no,
Determine that above-mentioned pulse wave is invalid pulse wave.
Further, above-mentioned judging unit further include: sorting module, for calculating and judging [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] whether more than after preset difference value, where it has, sorting to above-mentioned N*F_s sampled point；Second extraction module, for taking out the signal of preset length from the above-mentioned N*F_s sampled point after sequence；Whether computing module, the standard deviation of the signal of the above-mentioned preset length for calculating and judging taking-up and the ratio of its mean value are less than the first default ratio；Second determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Further, above-mentioned judging unit further include: third extraction module, for calculate and judge take out above-mentioned preset length signal standard deviation and its mean value ratio whether less than the first default ratio after, where it has, finding out all main peak points from above-mentioned N*F_s sampled point；First removing module, the main peak point for being lower than default amplitude for deleting amplitude from above-mentioned all main peak points；Second judgment module, for judging whether within a preset range to delete amplitude main peak number corresponding lower than main peak point remaining after the main peak point of above-mentioned default amplitude；Third determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Further, above-mentioned judging unit further include: the second removing module, whether it is within the preset range for the corresponding main peak number of main peak point remaining after judgement deletes amplitude lower than the main peak point of above-mentioned default amplitude, in a case of yes, then with two neighboring main peak for a wave crest pair, the wave crest pair of all length exception is deleted；Third judgment module, for judging whether the wave crest for deleting above-mentioned all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair；4th determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Further, above-mentioned judging unit further include: the 4th judgment module, after whether the wave crest for deleting above-mentioned all length exception in judgement is more than or equal to default logarithm to the number of rear remaining wave crest pair, where it has, calculating and judging whether above-mentioned remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；5th determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave；6th determining module, for where it has, determining that above-mentioned pulse wave is effective pulse wave.
Further, above-mentioned apparatus further include: structural unit, for after determining that above-mentioned pulse wave is effective pulse wave, after continuously determining out (M-1) a effective pulse wave again, according to the M currently determined effective wave structure one effective pulse wave templates of pulse；Comparing unit, for one wave crest of subsequent every acquisitions to all with above-mentioned effective pulse wave template progress similarity-rough set；Determination unit, for determining that the wave crest is effective pulse wave to corresponding pulse wave when the similarity of both comparison result displays reaches predetermined threshold value.
In embodiments of the present invention, in such a way that the signal characteristic of the pulse wave based on target individual carries out availability deciding, by the original waveform for obtaining target individual pulse wave within a preset period of time；The signal characteristic of pulse wave is extracted from original waveform；According to the signal characteristic of extraction, judge whether pulse wave is effective pulse wave, has reached convenient for detection
No pulse wave of some individual is effective purpose, so solve varied with each individual in the related technology as the signal characteristic of pulse wave caused by be difficult to determine no the technical issues of being significant wave from some collected pulse wave of individual.
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, and the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart for optionally judging the whether effective method of pulse wave according to an embodiment of the present invention；
Fig. 2 (a) is a kind of waveform diagram of effective pulse wave according to an embodiment of the present invention；
Fig. 2 (b) is the waveform diagram of the invalid pulse wave of one kind according to an embodiment of the present invention；
Fig. 3 is another flow chart for optionally judging the whether effective method of pulse wave according to an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram for optionally judging the whether effective device of pulse wave according to an embodiment of the present invention.
In order to enable those skilled in the art to better understand the solution of the present invention, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, should fall within the scope of the present invention.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, " second " etc. are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein can be performed in other sequences than those illustrated or described herein.Furthermore, term " includes " and " having " and their any deformation, it is intended to cover and non-exclusive includes, such as, the process, method, system, product or equipment for containing a series of steps or units those of are not necessarily limited to be clearly listed step or unit, but may include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
Embodiment 1
According to embodiments of the present invention, it provides and a kind of judges the whether effective embodiment of the method for pulse wave, it should be noted that, step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions, and, it, in some cases, can be to be different from herein although logical order is shown in flow charts
Sequence execute shown or described step.
Fig. 1 is a kind of flow chart for optionally judging the whether effective method of pulse wave according to an embodiment of the present invention, as shown in Figure 1, this method comprises the following steps:
Step S102 obtains the original waveform of pulse wave within a preset period of time；
Step S104 extracts the signal characteristic of pulse wave from original waveform；
Step S106 judges whether pulse wave is effective pulse wave according to the signal characteristic of extraction.
Specifically, it can use the original waveform that sensor detects and obtains pulse wave within a preset period of time.Wherein, preset time period can be any time period.Preferably, in order to realize real-time judge pulse wave whether be effective pulse wave purpose, above-mentioned preset time period can be defined as follows: using any time as current time, by N seconds before this to the timing definition between current time be above-mentioned preset time period.After the original waveform for getting above-mentioned pulse wave, it can store, and therefrom extract the signal characteristic (i.e. statistical nature) of pulse wave, the including but not limited to peak value of pulse wave, valley, maximum value, minimum value, median etc..After being extracted the signal characteristic of pulse wave, it can be determined that whether its signal characteristic meets pulse wave rule.If meeting, it is determined that the pulse wave is effective pulse wave；If not meeting, it is determined that the pulse wave is invalid pulse wave.It should be noted that before it can be operation algorithm, being defined according to priori knowledge for above-mentioned pulse wave rule, it is also possible to run in algorithm, is obtained according to the wave character self-teaching of pulse wave.
Further, after judging whether pulse wave is effective pulse wave, corresponding judging result can be exported, in order to which observer checks.In addition, whether contingency influences the accuracy of judging result in order to prevent, before exporting N seconds before this pulse waves according to judging result and being effective pulse wave, in addition to considering to work as previous judging result, it is also contemplated that judging result before this.
Fig. 2 (a) is a kind of waveform diagram of effective pulse wave according to an embodiment of the present invention, and Fig. 2 (b) is the waveform diagram of the invalid pulse wave of one kind according to an embodiment of the present invention.As shown in Fig. 2 (a) and Fig. 2 (b), they are to utilize the collected two kinds of typical signal waves of sensor.
Through the embodiment of the present invention, the whether effective mode of pulse wave is judged using the signal characteristic of the pulse wave based on individual subject, reach for the pulse wave of any individual, based on its whether effective technical effect of its unique signal characteristic real-time detection, so solve varied with each individual in the related technology as the signal characteristic of pulse wave caused by be difficult to determine no the technical issues of being significant wave from some collected pulse wave of individual.
Optionally, the signal characteristic of extraction pulse wave may include: from original waveform
S2 is that F_s point is per second with sample rate according to the original waveform of pulse wave, carries out digitized processing to N seconds long pulse waves, obtains N*F_s sampled point；
S4 finds out the maximum value, minimum value and median of amplitude from N*F_s sampled point,
Correspondingly, according to the signal characteristic of extraction, judge whether pulse wave is that effective pulse wave includes:
S6 is calculated and is judged whether [(maximum value-median)-(median-minimum value)] is more than preset difference value；
S8, if not, it is determined that pulse wave is invalid pulse wave.
That is, in embodiments of the present invention, consideration does digitized processing to the original signal of pulse wave, taking sample rate is that F_s point is per second, and the original signal uniform sampling that sensor is detected is at digital signal.After data point after pulse wave signal detection algorithm (hereinafter referred to as algorithm) receives digitized sampling, this data point is saved, when the data number being saved in is equal to N seconds multiplied by sample rate, starts the above-mentioned analytical procedure for executing the embodiment of the present invention.
Through the embodiment of the present invention, during whether judge pulse wave is effective pulse wave, it may be considered that the influence to stability to judging result.
In addition, in the above embodiment of the invention, if judging result be it is no, can determine that pulse wave is effective pulse wave, but influence of such situation due to not accounting for shake factor, there may be errors for judging result.To solve the above-mentioned problems, optionally, it is calculating and whether is judging [(maximum value-median)-(median-minimum value)] more than after preset difference value, the above method can also include:
S10, if so, sorting to N*F_s sampled point；
S12 takes out the signal (signal of such as intermediate length) of preset length from N*F_s sampled point after sequence；
S14, whether the ratio of the standard deviation and its mean value that calculate and judge the signal for the preset length taken out is less than the first default ratio；
S16, if not, it is determined that pulse wave is invalid pulse wave.
Through the embodiment of the present invention, the influence shaken to judging result is further contemplated, so that judging result is more accurate.
In addition, in the above embodiment of the invention, when judging the ratio of the standard deviation of signal for the preset length taken out and its mean value less than the first default ratio, it can determine that pulse wave is effective pulse wave, but influence of such situation due to not accounting for the factors such as pulse wave main peak number (i.e. normal heartbeat number), there may be errors for judging result.To solve the above-mentioned problems, optionally, after whether the ratio for calculating and judging the standard deviation of signal for the preset length taken out and its mean value is less than the first default ratio, the above method further include:
S18, if so, finding out all main peak points from N*F_s sampled point；
S20, amplitude of deleting from all main peak points are lower than the main peak point of default amplitude；
Whether within a preset range lower than the corresponding main peak number of residue main peak point after the main peak point of default amplitude S22, judgement delete amplitude；
S24, if not, it is determined that pulse wave is invalid pulse wave.
Through the embodiment of the present invention, main peak number is further contemplated, main peak number influence to judging result of the amplitude within the scope of certain predetermined is especially considered, so that judging result is more accurate.
In addition, in the above embodiment of the invention, the corresponding main peak number of main peak point remaining after judging to delete amplitude and being lower than the main peak point of default amplitude within a preset range when, it can determine that pulse wave is effective pulse wave, but since such situation does not account for the influence of the factors such as the length (i.e. eartbeat interval) of arbitrary neighborhood pulse wave main peak pair, there may be errors for judging result.To solve the above-mentioned problems, optionally, whether it is within the preset range, the above method can also include: the corresponding main peak number of residue main peak point after judgement deletes amplitude lower than the main peak point of default amplitude
S26, if so, deleting the wave crest pair of all length exception with two neighboring main peak for a wave crest pair；
Whether S28, the wave crest that judgement deletes all length exception are more than or equal to default logarithm to the number of rear remaining wave crest pair；
S30, if not, it is determined that pulse wave is invalid pulse wave.
Through the embodiment of the present invention, the influence (i.e. the influence at normal heartbeat interval) of the length of adjacent main peak pair is further contemplated, so that judging result is more accurate.
In addition, in the above embodiment of the invention, when judging that the wave crest for deleting all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair, it can determine that pulse wave is effective pulse wave, but since such situation does not account for the influence of the stability of the factors such as the length (i.e. eartbeat interval) of arbitrary neighborhood pulse wave main peak pair, there may be errors for judging result.To solve the above-mentioned problems, optionally, after judging whether the wave crest for deleting all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair, the above method can also include:
S32, if so, calculating and judging whether remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；
S34, if not, it is determined that pulse wave is invalid pulse wave；
S36, if so, determining that pulse wave is effective pulse wave.
Through the embodiment of the present invention, the influence of the stability of eartbeat interval is further contemplated, so that judging result is more accurate.
Optionally, after determining that pulse wave is effective pulse wave, the above method can also include:
S38, if continuously determining out (M-1) a effective pulse wave again, according to M currently determined effectively wave structure one effective pulse wave template of pulse；
S40, one wave crest of subsequent every acquisition to all with effective pulse wave template carry out similarity-rough set；
S42, if the similarity of both comparison result displays reaches predetermined threshold value, it is determined that the wave crest is effective pulse wave to corresponding pulse wave.
Namely, in the detection process of pulse wave validity, after learning continuous N effectively pulse wave out using the aforementioned embodiments of the embodiment of the present invention, a template is constructed with this M pulse wave, it is subsequent often to receive a wave crest pair, just by the wave crest pair received compared with the template, when the similarity of the two reaches more than certain predetermined threshold value, it is believed that the wave crest received is effective pulse wave to corresponding pulse wave.In this way, the judging efficiency of pulse wave validity can be provided.
Further, after the method provided using the above embodiment of the embodiment of the present invention judges whether pulse wave is effective, it will determine that result saves.When determining that continuous K locking (i.e. continuous K effective pulse waves) occurs in result, just think to detect stable pulse wave signal.
Below in conjunction with Fig. 3, by taking specific embodiment as an example, the present invention is elaborated after considering original signal carrying out digitized processing, and taking sample rate is that F_s point is per second, the signal uniform sampling that sensor is detected carries out the process of pulse wave Effective judgement at digital signal:
Step 3.1, pending datas are waited；
Step 3.2, a new data is read in；
Step 3.3, judge whether the data number saved is more than or equal to N*F_s, if it is not, step 3.1 is executed, if so, executing step 3.4；
Step 3.4, for N*F_s data before this, wherein maximum value, minimum value and median are found；
Step 3.5, whether the difference of judgement (maximum value-median) and (median-minimum value) is more than the first preset difference value (i.e. DIRECTION_THRE SHOLD times), if it is not, step 3.16 is executed, if so, executing step 3.6；
Step 3.6, to N*F_s data sorting before this, taking intermediate length is the signal of SORTED_SIGNAL_TAIL_RATIO；
Step 3.7, judge whether the standard deviation for the signal that previous step is taken out is less than SORTED_SIGNAL_STABLE_RATIO divided by mean value, if it is not, step 3.16 is executed, if so, executing step 3.8；
Step 3.8, main peak all in N*F_s data of search past；
Step 3.9, the relatively low main peak of all amplitudes is removed；
Step 3.10, judge whether current main peak number is more than or equal to PEAK_MIN and is less than or equal to PEAK_MAX, if it is not, step 3.16 is executed, if so, executing step 3.11；
Step 3.11, it is one " wave crest to " with two neighboring main peak, deletes the wave crest pair of all length exception；
Step 3.12, judge whether current wave crest is more than or equal to main peak number * RATIO to number, if it is not, step 3.16 is executed, if so, executing step 3.13；
Step 3.13, wave crest is calculated to the standard deviation and mean value of length sequences；
Step 3.14, judge whether above-mentioned standard difference is less than or equal to MAX_ACCEPTABLE_STD_MEAN_RATIO divided by mean value, if it is not, step 3.16 is executed, if so, executing step 3.15；
It step 3.15, is effective pulse wave；
It step 3.16, is invalid pulse wave.
Embodiment 2
According to embodiments of the present invention, provide it is a kind of judge the whether effective Installation practice of pulse wave,.
Fig. 4 is a kind of schematic diagram for optionally judging the whether effective device of pulse wave according to an embodiment of the present invention, as shown in figure 4, the device includes: acquiring unit 402, for obtaining the original waveform of target individual pulse wave within a preset period of time；Extraction unit 404, for extracting the signal characteristic of above-mentioned pulse wave from above-mentioned original waveform；Judging unit 406 judges whether above-mentioned pulse wave is effective pulse wave for the signal characteristic according to extraction.
Specifically, it can use the original waveform that sensor detects and obtains pulse wave within a preset period of time.Wherein, preset time period can be any time period.Preferably, in order to realize real-time judge pulse wave whether be effective pulse wave purpose, above-mentioned preset time period can be defined as follows: using any time as current time, by N seconds before this to the timing definition between current time be above-mentioned preset time period.After the original waveform for getting above-mentioned pulse wave, it can store, and therefrom extract the signal characteristic (i.e. statistical nature) of pulse wave, the including but not limited to peak value of pulse wave, valley, maximum value, minimum value, median etc..After being extracted the signal characteristic of pulse wave, it can be determined that whether its signal characteristic meets pulse wave rule.If meeting, it is determined that the pulse wave is effective pulse wave；If not meeting, it is determined that the pulse wave is invalid pulse wave.It should be noted that before it can be operation algorithm, being defined according to priori knowledge for above-mentioned pulse wave rule, it is also possible to run in algorithm, is obtained according to the wave character self-teaching of pulse wave.
Further, after judging whether pulse wave is effective pulse wave, corresponding judging result can be exported, in order to which observer checks.In addition, contingency influences the accuracy of judging result in order to prevent, defeated according to judging result
Before whether N seconds before this pulse waves are effective pulse waves out, in addition to considering to work as previous judging result, it is also contemplated that judging result before this.
Fig. 2 (a) is a kind of waveform diagram of effective pulse wave according to an embodiment of the present invention, and Fig. 2 (b) is the waveform diagram of the invalid pulse wave of one kind according to an embodiment of the present invention.As shown in Fig. 2 (a) and Fig. 2 (b), they are to utilize the collected two kinds of typical signal waves of sensor.
Through the embodiment of the present invention, the whether effective mode of pulse wave is judged using the signal characteristic of the pulse wave based on individual subject, reach for the pulse wave of any individual, based on its whether effective technical effect of its unique signal characteristic real-time detection, so solve varied with each individual in the related technology as the signal characteristic of pulse wave caused by be difficult to determine no the technical issues of being significant wave from some collected pulse wave of individual.
Optionally, said extracted unit includes: sampling module, is that F_s point is per second with sample rate for the original waveform according to above-mentioned pulse wave, carries out digitized processing to N seconds long above-mentioned pulse waves, obtain N*F_s sampled point；First extraction module, for finding out the maximum value, minimum value and median of amplitude from above-mentioned N*F_s sampled point, above-mentioned judging unit includes: first judgment module, for calculating and judging whether [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] is more than preset difference value；First determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
That is, in embodiments of the present invention, consideration does digitized processing to the original signal of pulse wave, taking sample rate is that F_s point is per second, and the original signal uniform sampling that sensor is detected is at digital signal.After data point after pulse wave signal detection algorithm (hereinafter referred to as algorithm) receives digitized sampling, this data point is saved, when the data number being saved in is equal to N seconds multiplied by sample rate, starts the above-mentioned analytical procedure for executing the embodiment of the present invention.
Through the embodiment of the present invention, during whether judge pulse wave is effective pulse wave, it may be considered that the influence to stability to judging result.
In addition, in the above embodiment of the invention, if judging result be it is no, can determine that pulse wave is effective pulse wave, but influence of such situation due to not accounting for shake factor, there may be errors for judging result.To solve the above-mentioned problems, optionally, above-mentioned judging unit further include: sorting module, for calculating and judging [(the above-mentioned above-mentioned median of maximum value -)-(the above-mentioned above-mentioned minimum value of median -)] whether more than after preset difference value, where it has, sorting to above-mentioned N*F_s sampled point；Second extraction module, for taking out the signal of preset length from the above-mentioned N*F_s sampled point after sequence；Whether computing module, the standard deviation of the signal of the above-mentioned preset length for calculating and judging taking-up and the ratio of its mean value are less than the first default ratio；Second determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Through the embodiment of the present invention, the influence shaken to judging result is further contemplated, so that judging result is more accurate.
In addition, in the above embodiment of the invention, when judging the ratio of the standard deviation of signal for the preset length taken out and its mean value less than the first default ratio, it can determine that pulse wave is effective pulse wave, but influence of such situation due to not accounting for the factors such as pulse wave main peak number (i.e. normal heartbeat number), there may be errors for judging result.To solve the above-mentioned problems, optionally, above-mentioned judging unit further include: third extraction module, for after whether the ratio for calculating and judging the standard deviation of signal for the above-mentioned preset length taken out and its mean value is less than the first default ratio, where it has, finding out all main peak points from above-mentioned N*F_s sampled point；First removing module, the main peak point for being lower than default amplitude for deleting amplitude from above-mentioned all main peak points；Second judgment module, for judging whether within a preset range to delete amplitude main peak number corresponding lower than main peak point remaining after the main peak point of above-mentioned default amplitude；Third determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Through the embodiment of the present invention, main peak number is further contemplated, main peak number influence to judging result of the amplitude within the scope of certain predetermined is especially considered, so that judging result is more accurate.
In addition, in the above embodiment of the invention, the corresponding main peak number of main peak point remaining after judging to delete amplitude and being lower than the main peak point of default amplitude within a preset range when, it can determine that pulse wave is effective pulse wave, but since such situation does not account for the influence of the factors such as the length (i.e. eartbeat interval) of arbitrary neighborhood pulse wave main peak pair, there may be errors for judging result.To solve the above-mentioned problems, optionally, above-mentioned judging unit further include: the second removing module, whether it is within the preset range for the corresponding main peak number of main peak point remaining after judgement deletes amplitude lower than the main peak point of above-mentioned default amplitude, in a case of yes, then with two neighboring main peak for a wave crest pair, the wave crest pair of all length exception is deleted；Third judgment module, for judging whether the wave crest for deleting above-mentioned all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair；4th determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave.
Through the embodiment of the present invention, the influence (i.e. the influence at normal heartbeat interval) of the length of adjacent main peak pair is further contemplated, so that judging result is more accurate.
In addition, in the above embodiment of the invention, when judging that the wave crest for deleting all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair, it can determine that pulse wave is effective pulse wave, but since such situation does not account for the influence of the stability of the factors such as the length (i.e. eartbeat interval) of arbitrary neighborhood pulse wave main peak pair, there may be errors for judging result.To solve the above-mentioned problems, optionally, above-mentioned judging unit further include: the 4th judgment module, after whether the wave crest for deleting above-mentioned all length exception in judgement is more than or equal to default logarithm to the number of rear remaining wave crest pair, where it has, calculating and judging whether above-mentioned remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；5th determining module, in a case of no, determining that above-mentioned pulse wave is invalid pulse wave；6th determining module, for where it has, determining that above-mentioned pulse wave is effective pulse wave.
Through the embodiment of the present invention, the influence of the stability of eartbeat interval is further contemplated, so that judging result is more
Accurately.
Optionally, above-mentioned apparatus further include: structural unit, for after determining that above-mentioned pulse wave is effective pulse wave, after continuously determining out (M-1) a effective pulse wave again, according to the M currently determined effective wave structure one effective pulse wave templates of pulse；Comparing unit, for one wave crest of subsequent every acquisitions to all with above-mentioned effective pulse wave template progress similarity-rough set；Determination unit, for determining that the wave crest is effective pulse wave to corresponding pulse wave when the similarity of both comparison result displays reaches predetermined threshold value.
Namely, in the detection process of pulse wave validity, after learning continuous N effectively pulse wave out using the aforementioned embodiments of the embodiment of the present invention, a template is constructed with this M pulse wave, it is subsequent often to receive a wave crest pair, just by the wave crest pair received compared with the template, when the similarity of the two reaches more than certain predetermined threshold value, it is believed that the wave crest received is effective pulse wave to corresponding pulse wave.In this way, the judging efficiency of pulse wave validity can be provided.
Further, after the method provided using the above embodiment of the embodiment of the present invention judges whether pulse wave is effective, it will determine that result saves.When determining that continuous K locking (i.e. continuous K effective pulse waves) occurs in result, just think to detect stable pulse wave signal.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can be realized in other ways.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, it can be a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of unit or module, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed on multiple units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially all or part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, including some instructions are with so that a computer equipment (can be personal computer, server or network equipment etc.) performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, the various media that can store program code such as magnetic or disk.
The above is only a preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the principle of the present invention; several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (14)
- It is a kind of to judge the whether effective method of pulse wave characterized by comprisingObtain the original waveform of target individual pulse wave within a preset period of time；The signal characteristic of the pulse wave is extracted from the original waveform；According to the signal characteristic of extraction, judge whether the pulse wave is effective pulse wave.
- The method according to claim 1, whereinThe signal characteristic that the pulse wave is extracted from the original waveform includes: according to the original waveform of the pulse wave, is that F_s point is per second with sample rate, carries out digitized processing to the N seconds long pulse waves, obtain N*F_s sampled point；The maximum value, minimum value and median of amplitude are found out from the N*F_s sampled point,According to the signal characteristic of extraction, judge whether the pulse wave is that effective pulse wave includes: calculating and judges whether [(maximum value-median)-(median-minimum value)] is more than preset difference value；If not, it is determined that the pulse wave is invalid pulse wave.
- According to the method described in claim 2, it is characterized in that, calculate and judge [(maximum value-median)-(median-minimum value)] whether be more than preset difference value after, the method also includes:If so, sorting to the N*F_s sampled point；The signal of preset length is taken out from the N*F_s sampled point after sequence；Whether the ratio of the standard deviation and its mean value that calculate and judge the signal for the preset length taken out is less than the first default ratio；If not, it is determined that the pulse wave is invalid pulse wave.
- According to the method described in claim 3, it is characterized in that, calculate and judge take out the preset length signal standard deviation and its mean value ratio whether less than the first default ratio after, the method also includes:If so, finding out all main peak points from the N*F_s sampled point；The main peak point that amplitude is lower than default amplitude is deleted from all main peak points；Whether within a preset range judgement deletes amplitude main peak number corresponding lower than main peak point remaining after the main peak point of the default amplitude；If not, it is determined that the pulse wave is invalid pulse wave.
- According to the method described in claim 4, it is characterized in that, after judgement deletes amplitude lower than the main peak point of the default amplitude the corresponding main peak number of remaining main peak point whether it is within the preset range, the method also includes:If so, deleting the wave crest pair of all length exception with two neighboring main peak for a wave crest pair；Whether the wave crest that judgement deletes all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair；If not, it is determined that the pulse wave is invalid pulse wave.
- According to the method described in claim 5, it is characterized in that, deleted after whether the wave crest of all length exception be more than or equal to default logarithm to the number of rear residue wave crest pair in judgement, the method also includes:If so, calculating and judging whether the remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；If not, it is determined that the pulse wave is invalid pulse wave；If so, determining that the pulse wave is effective pulse wave.
- According to the method described in claim 6, it is characterized in that, after determining that the pulse wave is effective pulse wave, the method also includes:If continuously determining out (M-1) a effective pulse wave again, according to M currently determined effectively wave structure one effective pulse wave template of pulse；One wave crest of subsequent every acquisition is to all carrying out similarity-rough set with the effective pulse wave template；If the similarity of both comparison result displays reaches predetermined threshold value, it is determined that the wave crest is effective pulse wave to corresponding pulse wave.
- It is a kind of to judge the whether effective device of pulse wave characterized by comprisingAcquiring unit, for obtaining the original waveform of target individual pulse wave within a preset period of time；Extraction unit, for extracting the signal characteristic of the pulse wave from the original waveform；Judging unit judges whether the pulse wave is effective pulse wave for the signal characteristic according to extraction.
- Device according to claim 8, which is characterized in thatThe extraction unit includes: sampling module, is that F_s point is per second with sample rate for the original waveform according to the pulse wave, carries out digitized processing to the N seconds long pulse waves, obtain N*F_s sampled point；First extraction module, for finding out the maximum value, minimum value and middle position of amplitude from the N*F_s sampled point Value,The judging unit includes: first judgment module, for calculating and judging whether [(maximum value-median)-(median-minimum value)] is more than preset difference value；First determining module, in a case of no, determining that the pulse wave is invalid pulse wave.
- Device according to claim 9, which is characterized in that the judging unit further include:Sorting module, for calculate and judge [(maximum value-median)-(median-minimum value)] whether be more than preset difference value after, where it has, to the N*F_s sampled point sequence；Second extraction module, for taking out the signal of preset length from the N*F_s sampled point after sequence；Whether computing module, the standard deviation of the signal of the preset length for calculating and judging taking-up and the ratio of its mean value are less than the first default ratio；Second determining module, in a case of no, determining that the pulse wave is invalid pulse wave.
- Device according to claim 10, which is characterized in that the judging unit further include:Third extraction module, for calculate and judge take out the preset length signal standard deviation and its mean value ratio whether less than the first default ratio after, where it has, finding out all main peak points from the N*F_s sampled point；First removing module, the main peak point for being lower than default amplitude for deleting amplitude from all main peak points；Second judgment module, for judging whether within a preset range to delete amplitude main peak number corresponding lower than main peak point remaining after the main peak point of the default amplitude；Third determining module, in a case of no, determining that the pulse wave is invalid pulse wave.
- Device according to claim 11, which is characterized in that the judging unit further include:Second removing module, whether it is within the preset range for the corresponding main peak number of main peak point remaining after judgement deletes amplitude lower than the main peak point of the default amplitude, where it has, deleting the wave crest pair of all length exception then with two neighboring main peak for a wave crest pair；Third judgment module, for judging whether the wave crest for deleting all length exception is more than or equal to default logarithm to the number of rear remaining wave crest pair；4th determining module, in a case of no, determining that the pulse wave is invalid pulse wave.
- Device according to claim 12, which is characterized in that the judging unit further include:4th judgment module, after whether the wave crest for deleting all length exception in judgement is more than or equal to default logarithm to the number of rear remaining wave crest pair, where it has, calculating and judging whether the remaining wave crest is less than or equal to the second default ratio as the standard deviation of sequence and its average ratio to length using wave crest to corresponding；5th determining module, in a case of no, determining that the pulse wave is invalid pulse wave；6th determining module, for where it has, determining that the pulse wave is effective pulse wave.
- Device according to claim 13, which is characterized in that described device further include:Structural unit, for after determining that the pulse wave is effective pulse wave, after continuously determining out (M-1) a effective pulse wave again, according to the M currently determined effective wave structure one effective pulse wave templates of pulse；Comparing unit, for one wave crest of subsequent every acquisitions to all with the effective pulse wave template progress similarity-rough set；Determination unit, for determining that the wave crest is effective pulse wave to corresponding pulse wave when the similarity of both comparison result displays reaches predetermined threshold value.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960203A (en) * | 2019-12-13 | 2020-04-07 | 心核心科技(北京)有限公司 | Cardiovascular characteristic parameter detection method and device |
| CN114041768A (en) * | 2021-10-11 | 2022-02-15 | 广东宝莱特医用科技股份有限公司 | Pulse rate extraction method, pulse rate extraction device, and storage medium |
Families Citing this family (7)
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|---|---|---|---|---|
| CN111510109B (en) * | 2019-01-30 | 2023-07-18 | 维谛技术有限公司 | Signal filtering method, device, equipment and medium |
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Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189320A (en) * | 1997-01-31 | 1998-08-05 | 惠普公司 | Method and system for fast determination of EKG waveform morphology |
| CN101006916A (en) * | 2006-01-23 | 2007-08-01 | 柯顿（天津）电工电器有限公司 | Electronic sphygmomanometer capable of measuring arrhythmia |
| CN101028186A (en) * | 2007-03-28 | 2007-09-05 | 李楚雅 | Automatic recognition of EC G ST section based on template match |
| CN101049235A (en) * | 2007-04-26 | 2007-10-10 | 中国科学技术大学 | Body surface detection method and device for high frequency wave of repolarization of ventricle |
| CN101150981A (en) * | 2005-02-25 | 2008-03-26 | 约瑟夫·威塞尔 | Method and apparatus for detecting atrial fibrillation |
| CN201150533Y (en) * | 2007-11-30 | 2008-11-19 | 沈阳东软医疗系统有限公司 | Blood pressure measuring device |
| CN102488512A (en) * | 2011-12-06 | 2012-06-13 | 中国科学院苏州纳米技术与纳米仿生研究所 | Automatic alarm system for electrocatdiogram monitoring and alarm method thereof |
| CN102525440A (en) * | 2010-12-17 | 2012-07-04 | 财团法人交大思源基金会 | Cardiovascular health status evaluation system and method |
| CN202489940U (en) * | 2011-12-23 | 2012-10-17 | 中国计量学院 | Pulse condition information collecting system |
| CN102743160A (en) * | 2012-07-31 | 2012-10-24 | 刘常春 | Noninvasive accurate device for measuring function of artery |
| CN103610452A (en) * | 2013-12-03 | 2014-03-05 | 中国人民解放军第三军医大学 | Non-contact magnetic induction type pulse detection method |
| CN103860159A (en) * | 2012-12-12 | 2014-06-18 | 北京格瑞图科技有限公司 | Wrist strap type infrared pulse measurement method |
| CN103892797A (en) * | 2012-12-31 | 2014-07-02 | 中国移动通信集团公司 | Signal processing method and device for sleep structure analysis |
| CN103989485A (en) * | 2014-05-07 | 2014-08-20 | 朱晓斐 | Human body fatigue evaluation method based on brain waves |
| CN104027109A (en) * | 2013-03-07 | 2014-09-10 | 精工爱普生株式会社 | Atrial fibrillation analyzer and program |
| CN204016264U (en) * | 2014-06-10 | 2014-12-17 | 富港电子（东莞）有限公司 | Physiology measurement device |
| CN104519790A (en) * | 2012-08-15 | 2015-04-15 | 皇家飞利浦有限公司 | Neurofeedback system |
| CN104586371A (en) * | 2015-02-27 | 2015-05-06 | 辛勤 | Distinguishing method and device for pulse waveform |
| CN104757955A (en) * | 2015-03-25 | 2015-07-08 | 华中科技大学 | Human body blood pressure prediction method based on pulse wave |
| CN105433917A (en) * | 2016-01-29 | 2016-03-30 | 北京心量科技有限公司 | Method and device for obtaining heart beat interval |
| CN105581792A (en) * | 2014-11-12 | 2016-05-18 | 优盛医学科技股份有限公司 | Detection equipment and detection method for arrhythmia |
| CN105708451A (en) * | 2016-01-29 | 2016-06-29 | 中山衡思健康科技有限公司 | Electroencephalogram signal quality real-time judgment method |
| CN105726000A (en) * | 2016-01-29 | 2016-07-06 | 北京工业大学 | Method for calculating heart and vessel functional parameters based on blood pressure and pulses of four limbs |
| CN105726001A (en) * | 2016-05-11 | 2016-07-06 | 广州视源电子科技股份有限公司 | Method and device for measuring blood pressure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2798721B2 (en) * | 1989-08-22 | 1998-09-17 | コーリン電子株式会社 | Pressure pulse wave detector |
| US6623435B2 (en) * | 2000-07-03 | 2003-09-23 | Seiko Instruments Inc. | Pulse wave detecting apparatus |
| CN102247128B (en) * | 2010-05-19 | 2014-05-07 | 中国科学院计算技术研究所 | Human body pulse information collecting device and human body health status monitoring device |
| CN102670182B (en) * | 2012-05-03 | 2014-06-18 | 北京工业大学 | Pulse wave acquisition quality real-time analysis device |
| CN103169456A (en) * | 2013-03-29 | 2013-06-26 | 深圳职业技术学院 | Processing method and processing system for pulse wave signals |
| CN103211586B (en) * | 2013-04-12 | 2015-07-22 | 深圳市理邦精密仪器股份有限公司 | Optical-detection-based noninvasive pressure signal acquisition method and device |
| CN104127173B (en) * | 2014-07-14 | 2016-06-08 | 昆明理工大学 | A kind of pathological information extracting method based on dynamic pulse wave characteristic parameters |
| CN104706337A (en) * | 2015-02-11 | 2015-06-17 | 华东师范大学 | Automatic pulse wave crest and trough detection method |
| CN105105741A (en) * | 2015-07-15 | 2015-12-02 | 无锡海鹰电子医疗系统有限公司 | Envelope line extracting and feature point tracking method of pulse wave image |
| CN105286815B (en) * | 2015-11-02 | 2017-11-21 | 重庆大学 | A kind of pulse wave signal feature point detecting method based on waveform time domain feature |
-
2016
- 2016-07-13 CN CN201680087679.XA patent/CN109843158A/en active Pending
- 2016-07-13 WO PCT/CN2016/089871 patent/WO2018010107A1/en active Application Filing
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189320A (en) * | 1997-01-31 | 1998-08-05 | 惠普公司 | Method and system for fast determination of EKG waveform morphology |
| CN101150981A (en) * | 2005-02-25 | 2008-03-26 | 约瑟夫·威塞尔 | Method and apparatus for detecting atrial fibrillation |
| CN101006916A (en) * | 2006-01-23 | 2007-08-01 | 柯顿（天津）电工电器有限公司 | Electronic sphygmomanometer capable of measuring arrhythmia |
| CN101028186A (en) * | 2007-03-28 | 2007-09-05 | 李楚雅 | Automatic recognition of EC G ST section based on template match |
| CN101049235A (en) * | 2007-04-26 | 2007-10-10 | 中国科学技术大学 | Body surface detection method and device for high frequency wave of repolarization of ventricle |
| CN201150533Y (en) * | 2007-11-30 | 2008-11-19 | 沈阳东软医疗系统有限公司 | Blood pressure measuring device |
| CN102525440A (en) * | 2010-12-17 | 2012-07-04 | 财团法人交大思源基金会 | Cardiovascular health status evaluation system and method |
| CN102488512A (en) * | 2011-12-06 | 2012-06-13 | 中国科学院苏州纳米技术与纳米仿生研究所 | Automatic alarm system for electrocatdiogram monitoring and alarm method thereof |
| CN202489940U (en) * | 2011-12-23 | 2012-10-17 | 中国计量学院 | Pulse condition information collecting system |
| CN102743160A (en) * | 2012-07-31 | 2012-10-24 | 刘常春 | Noninvasive accurate device for measuring function of artery |
| CN104519790A (en) * | 2012-08-15 | 2015-04-15 | 皇家飞利浦有限公司 | Neurofeedback system |
| CN103860159A (en) * | 2012-12-12 | 2014-06-18 | 北京格瑞图科技有限公司 | Wrist strap type infrared pulse measurement method |
| CN103892797A (en) * | 2012-12-31 | 2014-07-02 | 中国移动通信集团公司 | Signal processing method and device for sleep structure analysis |
| CN104027109A (en) * | 2013-03-07 | 2014-09-10 | 精工爱普生株式会社 | Atrial fibrillation analyzer and program |
| CN103610452A (en) * | 2013-12-03 | 2014-03-05 | 中国人民解放军第三军医大学 | Non-contact magnetic induction type pulse detection method |
| CN103989485A (en) * | 2014-05-07 | 2014-08-20 | 朱晓斐 | Human body fatigue evaluation method based on brain waves |
| CN204016264U (en) * | 2014-06-10 | 2014-12-17 | 富港电子（东莞）有限公司 | Physiology measurement device |
| CN105581792A (en) * | 2014-11-12 | 2016-05-18 | 优盛医学科技股份有限公司 | Detection equipment and detection method for arrhythmia |
| CN104586371A (en) * | 2015-02-27 | 2015-05-06 | 辛勤 | Distinguishing method and device for pulse waveform |
| CN104757955A (en) * | 2015-03-25 | 2015-07-08 | 华中科技大学 | Human body blood pressure prediction method based on pulse wave |
| CN105433917A (en) * | 2016-01-29 | 2016-03-30 | 北京心量科技有限公司 | Method and device for obtaining heart beat interval |
| CN105708451A (en) * | 2016-01-29 | 2016-06-29 | 中山衡思健康科技有限公司 | Electroencephalogram signal quality real-time judgment method |
| CN105726000A (en) * | 2016-01-29 | 2016-07-06 | 北京工业大学 | Method for calculating heart and vessel functional parameters based on blood pressure and pulses of four limbs |
| CN105726001A (en) * | 2016-05-11 | 2016-07-06 | 广州视源电子科技股份有限公司 | Method and device for measuring blood pressure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960203A (en) * | 2019-12-13 | 2020-04-07 | 心核心科技(北京)有限公司 | Cardiovascular characteristic parameter detection method and device |
| CN114041768A (en) * | 2021-10-11 | 2022-02-15 | 广东宝莱特医用科技股份有限公司 | Pulse rate extraction method, pulse rate extraction device, and storage medium |
| CN114041768B (en) * | 2021-10-11 | 2023-08-08 | 广东宝莱特医用科技股份有限公司 | Pulse rate extraction method, pulse rate extraction device and storage medium |
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|---|---|
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