CN104056445A - Human motion analytical method based on heart rate and acceleration sensor and device based on method - Google Patents
Human motion analytical method based on heart rate and acceleration sensor and device based on method Download PDFInfo
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Abstract
The invention relates to a human motion analytical method based on heart rate and an acceleration sensor and a device based on the method, which can detect the motion state of unobvious limb motions of weightlifting, strength training, yoga and the like. The human motion analytical method based on the heart rate and the acceleration sensor comprises the step that the motion state S is obtained by a triaxial accelerometer and a heart rate sensor. The data of the triaxial accelerometer and the data of the heart rate sensor are combined, cross comparison is carried out, various aerobic exercises and anaerobic exercises and sleep are effectively detected, results are more accurate, the condition that a product mistakenly prompts entering the motion state because of washing hands, folding up a quilt and other operation is effectively prevented, particularly when the product is used for judging the motion that the limbs do not move, such as the strength training, the yoga and the weightlifting, the condition is avoided, and the feedback used for stimulating a user to keep the state is provided.
Description
Technical field
The present invention relates to a kind of human motion analysis method and device thereof based on heart rate and acceleration transducer, the unconspicuous motion states of limb action such as weight lifting, strength building, Yoga can be detected.
Background technology
Existing technological means is mainly whether the variation by three axle acceleration of gravity instruments judges be kept in motion, like this disconnected than being easier to erroneous judgement, such as, limbs are significantly motion suddenly, is not to be still kept in motion.And cannot judge the motion that some limbs are not mobile, such as strength building, Yoga, weight lifting etc.
Chinese Patent Application No.: 201310574984.X, " a kind of motion state monitoring and feedback device and method thereof " this motion state monitoring and feedback device disclosed, it is characterized in that, comprising: 3-axis acceleration instrument, the accekeration of three directions while moving for Real-time Collection; Processor, monitors whether enter motion state by calculated data and the time that judges; Feedback device, after entering motion state by this feedback of status to user; Power module, for powering to whole device.By this product, can effectively prevent from causing the prompting of product mistake to enter motion state because of operations such as washing one's hands, fold up a quit, wave, with excitation user, keep the feedback of this state simultaneously.In actual use procedure, the said goods is single for the judging means of motion state, only by 3-axis acceleration instrument, judge and still exist erroneous judgement to break, therefore, need to improve for technique scheme, introduce new determination methods, further improve the degree of accuracy of motion state judgement.
Summary of the invention
The object of the invention is to overcome existing the problems referred to above in prior art, and provide a kind of user's motion state that can accurately judge, and this motion state is fed back to user, the human motion analysis method based on heart rate and acceleration transducer that excitation user keeps.
The present invention solves the problems of the technologies described above adopted technical scheme: be somebody's turn to do the human motion analysis method based on heart rate and acceleration transducer, it is characterized in that, step is as follows:
Step 1) determines whether motion state S1 by 3-axis acceleration instrument, comprising:
First, by 3-axis acceleration instrument, obtain three direction x, y, the acceleration of z, and calculate integrated value AMP by processor, the computing formula of AMP is as follows:
formula 1
Wherein, x is horizontal acceleration, and y is perpendicular to the longitudinal acceleration of x, and z is perpendicular to the normal acceleration of x and y; Then, according to T
1to T
2time period T in by processor, to calculate the formula of area under the curve E of AMP and time formation as follows:
formula 2
Then, use above-mentioned formula to calculate, when judging that by processor area E that current point in time starts back T minute is greater than S; Judge that in 10 seconds, whether user is in persistent movement state, if user has moved 10 seconds continuously, mistake proofing mechanism becomes ON simultaneously; Wherein, S enters the accelerating curve area corresponding to minimum energy of the required consumption of aerobic exercise for user;
Finally, meet at the same time after above-mentioned condition, if when above two conditions are all set up, mistake proofing mechanism becomes ON, i.e. motion state S1=TRUE, otherwise S1=FALSE.
Step 2) by heart rate sensor, determine whether motion state S2, comprising:
First, by 3-axis acceleration instrument, judge that user is at t
iin rest state, heart rate sensor gathers heart rate value constantly
hr (quiet, t) , gather the heart rate of a period of time in this state, obtain this user's HRrest
hR quiet :
formula 3
Then, calculate at T
1to T
2time period T in real-time heart rate H, the heart rate of supposing middle collection per second is h
i:
formula 4
Then, calculate T period user's minimum movement heart rate h by formula, user's age is age:
formula 5
Finally, when H>h, motion state S2 is TRUE, otherwise S2 is FALSE.
Step 3) is last, obtains motion state S:
formula 6
S is that TRUE notifies bracelet starter and outside display reminding user to enter motion state, otherwise does not just point out.
As preferably, described S enters the minimum energy 16-19KJ that aerobic exercise consumes for required a minute for user.
A kind of data processing capturing and recognition device based on claim 1,2 analytical methods, it is characterized in that: comprise processor, heart rate sensor, 3-axis acceleration instrument, output feedback device and peripheral circuit, described heart rate sensor, 3-axis acceleration instrument, output feedback device and peripheral circuit are electrically connected to processor.
As preferably, also include radio transmitting device.
As preferably, described radio transmitting device is bluetooth or NFC communication module.
As preferably, described output feedback device is one or more in LED lamp, motor, display, oscillator.
The invention has the beneficial effects as follows: present patent application combines the data of three axle Gravity accelerometers and heart rate sensor, intersect comparison, can effectively detect various aerobic exercises and anaerobic exercise, and sleep, result is more accurate, can effectively prevent from causing the prompting of product mistake to enter motion state because of operations such as washing one's hands, fold up a quit, wave, particularly judge the motion that some limbs are not mobile, such as strength building, Yoga, weight lifting etc., with excitation user, keep the feedback of this state simultaneously.
Accompanying drawing explanation
Fig. 1 is the logic chart of the embodiment of the present invention one.
Fig. 2 is the structural representation of the embodiment of the present invention two.
Label declaration: wearable device 1, processor 2, heart rate sensor 3,3-axis acceleration instrument 4, output feedback device 5, peripheral circuit 6, radio transmitting device 7, data acquisition equipment 8, Cloud Server 9.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment mono-: referring to Fig. 1, be somebody's turn to do the human motion analysis method based on heart rate and acceleration transducer, step is as follows: step 1) determines whether motion state S1 by 3-axis acceleration instrument 4, comprising:
First, by 3-axis acceleration instrument 4, obtain three direction x, y, the acceleration of z, and calculate integrated value AMP by processor 2, the computing formula of AMP is as follows:
formula 1
Wherein, x is horizontal acceleration, and y is perpendicular to the longitudinal acceleration of x, and z is perpendicular to the normal acceleration of x and y.Then, according to T
1to T
2time period T in by processor 2, to calculate AMP as follows with the formula of the area under the curve E of time formation:
formula 2
Then, use above-mentioned formula to calculate, when the area E starting back T minute by processor 2 judgement current points in time is greater than S; Judge that in 10 seconds, whether user is in persistent movement state, if user has moved 10 seconds continuously, mistake proofing mechanism becomes ON simultaneously; Wherein, S enters the accelerating curve area corresponding to minimum energy of the required consumption of aerobic exercise for user.
Finally, meet at the same time after above-mentioned condition, if when above two conditions are all set up, mistake proofing mechanism becomes ON, i.e. motion state S1=TRUE, otherwise S1=FALSE.
Step 2) by heart rate sensor 3, determine whether motion state S2, comprising:
First, by 3-axis acceleration instrument 4, judge that users are at t
iin rest state, heart rate sensor 3 gathers heart rate value constantly
hr (quiet, t) , gather the heart rate of a period of time in this state, obtain this user's HRrest
hR quiet :
formula 3
Then, calculate at T
1to T
2time period T in real-time heart rate H, the heart rate of supposing middle collection per second is h
i:
formula 4
Then, calculate T period user's minimum movement heart rate h by formula, user's age is age:
formula 5
Finally, when H>h, motion state S2 is TRUE, otherwise S2 is FALSE.
Step 3) is last, obtains motion state S:
formula 6
S is that TRUE notifies bracelet starter and outside display reminding user to enter motion state, otherwise does not just point out.
S in the present embodiment corresponding accelerating curve area while entering for user the minimum energy 16-19KJ that required one minute of aerobic exercise consumes, the adjustment that the large I of S numerical value need to be carried out certain limit according to practical application meets the demand of different crowd, this numerical value is empirical value, and preferred value is 17KJ.In addition, the motion state detection means that adopt in mistake proofing in the 10 seconds mechanism in the present embodiment are prior art, can process judgement by 3-axis acceleration instrument, or other technological means, continuous meter step algorithm as conventional in pedometer etc.
Embodiment bis-: a kind of data processing capturing and recognition device of the human motion analysis method based on embodiment mono-heart rate and acceleration transducer, data processing capturing and recognition device in the present embodiment is for example smart motion bracelet of a wearable device 1, comprise processor 2, heart rate sensor 3, 3-axis acceleration instrument 4, output feedback device 5 and peripheral circuit 6, heart rate sensor 3, 3-axis acceleration instrument 4, output feedback device 5 and peripheral circuit 6 are electrically connected to processor 2 respectively, processor 2 has been mainly used in data operation, output feedback device 5 is LED lamp, motor, display etc.In order to facilitate equipment wirelessly transmitting data, this product is also provided with radio transmitting device 7, and the radio transmitting device 7 in the present embodiment is bluetooth or NFC communication module, and heart rate sensor 3 used can be the sensor of photoelectricity aroused in interest or photoelectricity transmission-type.
This device feeds back to user movement state by output feedback device 5, and data message is sent to the data acquisition equipments 8 such as computer, mobile phone, router by radio transmitting device 7, and data acquisition equipment 8 can be uploaded to Cloud Server 9.
In conjunction with the concrete case of above-described embodiment one, two, embodiment tri-:
First has been worn the motion-activated equipment of heart rate and three axle acceleration of gravity instrument combinations, and equipment detects 10 o'clock to 6 o'clock evening of first by three axle acceleration of gravity instruments, and the AMP amplitude of variation of three axles is in 5%, and first should remain static; Detect heart rate at this time simultaneously, and average, obtain HRquiet=82, so the HRrest of first obtain, and by above-mentioned way, can be at continuous this numerical value of correction in future.
In 30 years old this year of first, first is in and is lifted the dumbbell 5 minutes from 8:01 to 8:05, detects first at this T=1 minute of 5 minutes, and heart rate H is respectively in real time:
8:01 110
8:02 133
8:03 132
8:04 133
8:05 135
And according to formula 5, in the time of T=1 minute, the minimum movement heart rate of first is (210-82-30) * 0.5+82=131, S1 starts as TRUE from 8:02.
And lift the dumbbell because amplitude is less, E is the state that is less than S always, so S2 is FALSE, because S1 is TRUE, equipment will detect user and move when 8:02, and by external device (ED) prompting users such as LED lamp, motor, display, oscillators.
Above content described in this description is only to structure example of the present invention explanation.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (6)
1. the human motion analysis method based on heart rate and acceleration transducer, is characterized in that, step is as follows:
Step 1) determines whether motion state S1 by 3-axis acceleration instrument, comprising:
First, by 3-axis acceleration instrument, obtain three direction x, y, the acceleration of z, and calculate integrated value AMP by processor, the computing formula of AMP is as follows:
Wherein, x is horizontal acceleration, and y is perpendicular to the longitudinal acceleration of x, and z is perpendicular to the normal acceleration of x and y; Then, according to T
1to T
2time period T in by processor, to calculate the formula of area under the curve E of AMP and time formation as follows:
Then, use above-mentioned formula to calculate, when judging that by processor area E that current point in time starts back T minute is greater than S; Judge that in 10 seconds, whether user is in persistent movement state, if user has moved 10 seconds continuously, mistake proofing mechanism becomes ON simultaneously; Wherein, S enters the accelerating curve area corresponding to minimum energy of the required consumption of aerobic exercise for user;
Finally, meet at the same time after above-mentioned condition, if when above two conditions are all set up, mistake proofing mechanism becomes ON, i.e. motion state S1=TRUE, otherwise S1=FALSE;
Step 2) by heart rate sensor, determine whether motion state S2, comprising:
First, by 3-axis acceleration instrument, judge that user is at t
iin rest state, heart rate sensor gathers heart rate value constantly
hr (quiet, t) , gather the heart rate of a period of time in this state, obtain this user's HRrest
hR quiet :
Then, calculate at T
1to T
2time period T in real-time heart rate H, the heart rate of supposing middle collection per second is h
i:
Then, calculate T period user's minimum movement heart rate h by formula, user's age is age:
Finally, when H>h, motion state S2 is TRUE, otherwise S2 is FALSE;
Step 3) is last, obtains motion state S:
S is that TRUE notifies bracelet to feed back to user to enter motion state, otherwise does not just point out.
2. the human motion analysis method based on heart rate and acceleration transducer according to claim 1, is characterized in that: described S enters the minimum energy 16-19KJ that aerobic exercise consumes for required a minute for user.
3. the data processing capturing and recognition device based on claim 1,2 analytical methods, it is characterized in that: comprise processor, heart rate sensor, 3-axis acceleration instrument, output feedback device and peripheral circuit, described heart rate sensor, 3-axis acceleration instrument, output feedback device and peripheral circuit are electrically connected to processor.
4. data processing capturing and recognition device according to claim 3, is characterized in that: also include radio transmitting device.
5. data processing capturing and recognition device according to claim 4, is characterized in that: described radio transmitting device is bluetooth or NFC communication module.
6. according to the data processing capturing and recognition device described in claim 3 or 4, it is characterized in that: described output feedback device is one or more in LED lamp, motor, display, oscillator.
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CN110811578A (en) * | 2019-11-27 | 2020-02-21 | 青岛歌尔智能传感器有限公司 | Step counting device and step counting method thereof, controller and readable storage medium |
CN110960222A (en) * | 2019-12-17 | 2020-04-07 | 心核心科技(北京)有限公司 | Motion type detection method and device |
CN112349381A (en) * | 2020-11-10 | 2021-02-09 | 深圳市爱都科技有限公司 | Calorie calculation method, device, wearable equipment and storage medium |
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