CN106598225B - Method and device for recognizing human body action by wearable equipment - Google Patents
Method and device for recognizing human body action by wearable equipment Download PDFInfo
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- 230000009471 action Effects 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 93
- 229910052751 metal Inorganic materials 0.000 claims description 93
- 230000000630 rising effect Effects 0.000 claims description 47
- 238000001514 detection method Methods 0.000 claims description 34
- 230000003111 delayed effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 239000011257 shell material Substances 0.000 description 13
- 230000001133 acceleration Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 239000008358 core component Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/014—Hand-worn input/output arrangements, e.g. data gloves
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
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Abstract
The invention provides a method and a device for recognizing human body actions by wearable equipment, which are used for acquiring a contact position on the wearable equipment, which is in contact with a human body; determining an action recognition algorithm according to the contact position; acquiring action information acquired by a sensor; and determining the human body action according to the action information and the action recognition algorithm. Even if the same human body action is performed, the action information acquired by the sensor is not completely the same when the contact positions of the wearable device and the human body are different, so that the accuracy of human body action identification can be improved by acquiring the contact positions of the wearable device and the human body, determining a final action identification algorithm according to different contact positions, and then identifying the human body action through the determined action identification algorithm and the acquired action information.
Description
Technical field
The present invention relates to wearable device field more particularly to the methods and dress of a kind of wearable device identification human action
It sets.
Background technique
Increasingly developed with computer technology, wearable device is more and more common.Wearable device is not only one kind
Hardware device is even more interacted by software support and data interaction, cloud to realize powerful function, and wearable device is to me
Life, perception bring very big transformation.
Traditional wearable device during being identified to human action, even if act it is identical, human body with can
When the difference of the contact position of wearable device, collected action message is not also identical.Since identical movement is for difference
The collected action message of contact position it is different, be likely to result in the erroneous judgement of action recognition algorithm, such as moved what is swung arm forward
It is identified as swinging arm backward, the accuracy for causing human action to identify is lower.
Summary of the invention
Based on this, it is necessary to it is dynamic to provide a kind of wearable device identification human body that human action identification accuracy can be improved
The method and device of work.
A kind of method of wearable device identification human action, comprising:
It obtains on wearable device, be contacted with the contact position of human body；
Action recognition algorithm is determined according to the contact position；
Obtain the action message of sensor acquisition；
Human action is determined according to the action message and the action recognition algorithm.
A kind of device of wearable device identification human action, comprising:
Position acquisition module, the contact position for obtaining wearable device, being contacted with human body；
Algorithm determining module, for determining action recognition algorithm according to the contact position；
Information acquisition module, for obtaining the action message of sensor acquisition；
Action recognition module, for determining human action according to the action message and the action recognition algorithm.
The above method and device, even on wearable device, being contacted with the contact of human body due to identical human action
When the difference of position, the collected action message of sensor is not fully identical, therefore, by obtaining on wearable device, contacting
In the contact position of human body, and final action recognition algorithm is determined for different contact positions, then pass through determination
Action recognition algorithm and the action message of acquisition carry out human action identification, can be improved the accuracy of human action identification.
Detailed description of the invention
Fig. 1 is the flow chart that the wearable device of an embodiment identifies the method for human action；
Fig. 2 is the core for the wearable device that the wearable device an of specific embodiment identifies the method for human action
The cross section screenshot of part；
Fig. 3 is a concrete structure schematic diagram of the electronic module of the core component of Fig. 2；
Fig. 4 is the specific flow chart for the step that the wearable device of Fig. 1 identifies the method for human action；
Fig. 5 is driving signal and the waveform diagram for detecting signal；
Fig. 6 is the sub-process figure of a specific steps of the specific flow chart of Fig. 4；
Fig. 7 is the sub-process figure of another specific steps of the specific flow chart of Fig. 4；
Fig. 8 is the structure chart that the wearable device of another embodiment identifies the device of human action；
Fig. 9 is the cellular construction figure of a module of Fig. 8；
Figure 10 is the sub-unit structure figure of a unit of the cellular construction figure of Fig. 9.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " or/and " it include one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, the method for the wearable device identification human action for one embodiment of the invention, comprising:
S110: it obtains on wearable device, be contacted with the contact position of human body；
S130: action recognition algorithm is determined according to the contact position；
S150: the action message of sensor acquisition is obtained；
S170: human action is determined according to the action message and the action recognition algorithm.
The core component of wearable device can be bracelet or the component for being mainly used for acquiring action message of wrist-watch, core
The cross section screenshot of component as shown in Fig. 2, core component include shell, the electronic module being set on the inside of shell and several
Metal electrode.When wearable device is intelligent jewelry, shell is specially jewelry shell.Outer side of shell includes that several can be with
With the face of human contact, the corresponding metal electrode in each face.
Fig. 3 is please referred to, electronic module includes processor, sensor and power supply module；Wherein, processor and each gold
Belong to electrode electrical connection, is used for metal electrode output drive signal, and obtain each metal electrode and returned under the action of driving signal
The detection signal returned；Sensor is electrically connected with processor, the human body portion that the core component for acquiring wearable device is configured at
The action message of position, and action message is transmitted to processor；Power supply module is electrically connected with sensor and processor, for
Sensor and processor power supply, enable sensor and processor to work, this method is run on processor.
It should be noted that at least one metal electrode connects with human body when the wearable device is worn on human body
Touching, with the metal electrode of human contact detection signal rising edge compared to the metal electrode with human contact driving signal
Rising edge have greater than preset duration lag be delayed, not with the metal electrode of human contact detection signal rising edge phase
There is rising edge than the driving signal of the metal electrode of Yu Weiyu human contact the lag no more than preset duration to be delayed.
In one of the embodiments, on wearable device, the contact position for being contacted with human body can be appointing on shell
It anticipates a face.Several on shell can be preferably with the face of human contact two can be with the face of human contact, e.g., Ke Yiwei
The obverse and reverse of the core component of wearable device；Direction when wearable device can be worn on human body according to it is come area
Divide obverse and reverse.In the present embodiment, when wearable device is worn on human body according to predetermined manner, the face backwards to human body is positive
Face；Face towards human body is reverse side.It should be noted that in the present embodiment, when there is wearable device predetermined manner to dress
Front or back mark.Specifically, as shown in Fig. 2, can be using the face A as front, the face B is as reverse side.
It is to be appreciated that wearable device has on wearable device, when the position of accessible human body is greater than two faces
Predetermined manner dress when, some face should backwards to or the mark towards human body.
Sensor may include that velocity sensor, gyroscope, geomagnetic sensor etc. can carry out orientation, the biography of action recognition
Sensor.Specifically, for acceleration transducer for acquiring acceleration information, acceleration information includes the acceleration of three axis；Gyro
For instrument for acquiring angular velocity information, angular velocity information includes the angular speed of three axis；Geomagnetic sensor is used to acquire directional information,
Directional information is direction of the current kinetic on geomagnetic pole.Namely action recognition information includes: acceleration information, angular velocity information
And directional information.
Traditional action recognition algorithm is that the mode of self study in existing artificial intelligence is used to obtain in advance to multiple groups
, accurate acceleration information, angular velocity information, directional information and human action be training sample, what is be trained is dynamic
Make the corresponding algorithm of identification model.In the present embodiment example, for different contact positions, obtained in advance to multiple groups respectively
, accurate acceleration information, angular velocity information, directional information and human action be training sample, what is be trained is dynamic
Make the corresponding algorithm of identification model.It should be noted that the improvement of action recognition algorithm is that this method is connect for different
Position is touched, acceleration information obtain in advance with multiple groups respectively, accurate, angular velocity information, directional information and human action are
Training sample is trained, and specifically how to be trained, what model to be trained etc. details using using existing
Mode.
It is to be appreciated that contact position can be face corresponding with a metal electrode, or with multiple metal electricity
Extremely corresponding multiple faces.That is, in some embodiments, a face contact of synchronization human body and wearable device；Another
In a little embodiments, synchronization human body can be with multiple face contacts of wearable device.
Even due to identical human action, on wearable device, when being contacted with the contact position difference of human body, sensing
The collected action message of device is not fully identical, therefore, by obtaining on wearable device, being contacted with the contact position of human body
Set, and determine final action recognition algorithm for different contact positions, then by determining action recognition algorithm and
The action message of acquisition carries out human action identification, and the accuracy of human action identification can be improved.
Referring to Fig. 4, the acquisition wearable device is contacted with the contact position of human body in one of the embodiments,
Step, comprising:
S411: the driving signal and detection signal of each metal electrode are obtained.
S413: according to the driving signal of each metal electrode and the determining metal electrode with human contact of detection signal.
S415: determine that wearable device is contacted with the contact position of human body with human contact metal electrode according to described.
Each on wearable device can correspond to a metal electrode with the face of human contact, each face.Contact position
For it is each can be with a face in the face of human contact.In the present embodiment, each metal electrode input one it is fixed
Square wave is as driving signal, when a metal electrode is close to human body, due to the influence of human body parasitic capacitance, on the metal electrode
Rise Time of Square Wave can be slack-off.Referring to Fig. 5, the waveform of the square wave in the square-wave signal of driving signal such as two waveform diagrams,
That is VINThe waveform identified；The waveform of signal is detected when not in contact with to human body, the curve waveform in waveform diagram such as Fig. 5 (a),
That is V is identified in Fig. 5 (a)OUTCurve waveform；The waveform of signal is detected when touching human body, in waveform diagram such as Fig. 5 (b)
V is identified in curve waveform, i.e. Fig. 5 (b)OUTCurve waveform.In conjunction with Fig. 6, by two curve waveforms in Fig. 5 (a) and Fig. 5 (b),
It is found that when metal electrode touches human body, due to human body parasitic capacitance CFInfluence, total capacitance increases in circuit, inspection
Survey the time that rising edge arrival threshold voltage is detected when signal rising edge reaches the time of threshold voltage than not in contact with to human body
It is long, i.e. t2 > t1, namely it is electric compared to the metal with human contact with the rising edge of the detection signal of the metal electrode of human contact
The lag of the rising edge of the driving signal of pole is prolonged, greater than not compared with the rising edge of the detection signal of the metal electrode of human contact
The lag of the rising edge of the driving signal of the metal electrode of Yu Weiyu human contact is delayed.Here threshold voltage is and metal is electric
The interface identification of the processor of pole connection reaches the voltage value that the voltage value is high level.Rising edge reach threshold voltage when
Between i.e. as low level to rise to the shortest time required for high level.
Referring to Fig. 6, further, the step of the driving signal for obtaining each metal electrode and detection signal, packet
It includes:
S5111: driving signal is generated；
S5113: the driving signal is exported to each metal electrode；
S5115: the detection signal that each metal electrode returns under the action of the driving signal is received.
In the present embodiment, place unlike the embodiments above includes: output in the present embodiment to each metal electrode
Driving signal be the same square-wave signal.Different driving signals is not all exported for each different metal electrode, such as
This, can economize on resources.
In the present embodiment, place unlike the embodiments above further include: the driving signal in the present embodiment is by processor
It generates, then exports to each metal electrode.It is to be appreciated that in other embodiments, driving signal can also be by other letters
Number generator generates, and then exports to each metal electrode and processor, so that processor obtains each metal electrode
Driving signal.
Driving signal is being exported to each metal electrode, when a metal electrode is close to human body, due to human body
The influence of parasitic capacitance, the Rise Time of Square Wave on the metal electrode can be slack-off.It detects signal rising edge and reaches threshold voltage
Detected when time is than not in contact with to human body rising edge reach threshold voltage time it is long.In this way, can by driving signal and
The detection signal that each metal electrode returns compares the determining metal electrode with human contact.
Referring to Fig. 7, the driving signal and detection signal according to each metal electrode in one of the embodiments,
The step of determining metal electrode with human contact, comprising:
S6131: judge the lag time delay of the rising edge of the detection signal of each metal electrode and the rising edge of driving signal
Whether preset duration is greater than；
S6133: when will be judged to detecting the lag delay of the rising edge of the rising edge and driving signal of signal greater than presetting
Long metal electrode is determined as the metal electrode with human contact.
Formula C=ε S/4 π kd is determined by the capacitor of capacitor, wherein C indicates capacitor；ε indicates dielectric constant, with outer shell material
Matter is related；K is electrostatic force constant；S is the positive area of capacitor plate, the i.e. area of metal electrode；D be capacitor plate away from
From the i.e. thickness of shell.Due to timeconstantτ=RC, wherein R is a fixed resistance, and C indicates capacitor；Therefore, rise
It is related to the material of the thickness of shell and shell along the time of threshold voltage is reached.
By the thickness of shell and the material of shell, sets preset duration and be greater than rising edge arrival threshold value electricity when not in contact with human body
The time of pressure, and be less than contact human body when rising edge reach threshold voltage when.That is, preset duration is greater than not with human contact's
The rising edge of the detection signal of metal electrode is stagnant with the rising edge of the driving signal of the metal electrode of human contact compared to not
After be delayed, less than the metal electrode with human contact detection signal rising edge compared to the metal electrode with human contact
The lag of the rising edge of driving signal is delayed.Preset duration can be to touch human body and not in contact with human body according to each electrode is repeatedly tested
When rising edge reach the required time of threshold voltage to determine.
Referring to Fig. 8, the present invention also provides a kind of with above-mentioned wearable device be by the method for human action is corresponding can
The device of wearable device identification human action, comprising:
Position acquisition module 710, the contact position for obtaining wearable device, being contacted with human body；
Algorithm determining module 730, for determining action recognition algorithm according to the contact position；
Information acquisition module 750, for obtaining the action message of sensor acquisition；
Action recognition module 770, for determining human action according to the action message and the action recognition algorithm.
Even due to identical human action, on wearable device, when being contacted with the contact position difference of human body, sensing
The collected action message of device is not fully identical, therefore, by obtaining on wearable device, being contacted with the contact position of human body
Set, and determine final action recognition algorithm for different contact positions, then by determining action recognition algorithm and
The action message of acquisition carries out human action identification, and the accuracy of human action identification can be improved.
Fig. 9 is please referred to, in one of the embodiments, the position acquisition module 710, comprising:
Signal acquiring unit 811, for obtaining the driving signal and detection signal of each metal electrode；
Electrode determination unit 813, for determining and being connect with human body according to the driving signal and detection signal of each metal electrode
The metal electrode of touching；
Position determination unit 815, for determining wearable device with the metal electrode of human contact according to, contacting
In the contact position of human body.
Incorporated by reference to Figure 10 please be read, further, the signal acquiring unit 811, comprising:
Original signal generates subelement 9111, for generating driving signal；
Original signal exports subelement 9113, for exporting the driving signal to each metal electrode；
Signal receiving subelement 9115 is detected, is returned under the action of the driving signal for receiving each metal electrode
Detection signal.
Please continue to refer to Fig. 9, the position acquisition module 710 in one of the embodiments, further includes: duration judgement
Unit 812；
The duration judging unit 812, the rising edge and driving signal of the detection signal for judging each metal electrode
The lag time delay of rising edge whether be greater than preset duration；
The electrode determination unit 813, for that will be judged to detecting the rising edge of signal and the rising edge of driving signal
The metal electrode that lag delay is greater than preset duration is determined as the metal electrode with human contact.
At least one metal electrode and people when the wearable device is worn on human body in one of the embodiments,
Body contact, with the metal electrode of human contact detection signal rising edge compared to the metal electrode with human contact driving
The rising edge of signal have greater than preset duration lag be delayed, not with the metal electrode of human contact detection signal rising
Along compared to the lag delay not having with the rising edge of the driving signal of the metal electrode of human contact no more than preset duration.
It should be noted that above-mentioned apparatus is corresponding with the above method, therefore details technology corresponding for apparatus and method is special
Sign, does not repeat one by one.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, multiple modification and improvement can also be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of method of wearable device identification human action characterized by comprising
It obtains on wearable device, be contacted with the contact position of human body, the wearable device is bracelet, wrist-watch or intelligent pearl
It is precious；
Action recognition algorithm is determined according to the contact position；
Obtain the action message of sensor acquisition；
Human action is determined according to the action message and the action recognition algorithm.
2. the method for wearable device identification human action according to claim 1, which is characterized in that the acquisition can be worn
It wears in equipment, be contacted with the step of contact position of human body, comprising:
Obtain the driving signal and detection signal of each metal electrode；
According to the driving signal of each metal electrode and the determining metal electrode with human contact of detection signal；
The contact position on wearable device, being contacted with human body is determined according to described and human contact metal electrode.
3. the method for wearable device identification human action according to claim 2, which is characterized in that the acquisition is each
The driving signal of metal electrode and detection signal include:
Generate driving signal；
The driving signal is exported to each metal electrode；
Receive the detection signal that each metal electrode returns under the action of the driving signal.
4. the method for wearable device identification human action according to claim 2, which is characterized in that described according to each
The step of driving signal of metal electrode and determination of detection signal and the metal electrode of human contact, comprising:
It is pre- to judge whether the lag time delay of the rising edge of the detection signal of each metal electrode and the rising edge of driving signal is greater than
If duration；
The lag delay that the rising edge of the rising edge and driving signal of signal will be judged to detecting is greater than the metal electricity of preset duration
Pole is determined as the metal electrode with human contact.
5. the method for wearable device according to claim 2 identification human action, which is characterized in that described wearable to set
For at least one metal electrode when being worn on human body and human contact, with the detection signal of the metal electrode of human contact
Rising edge compared to the rising edge of the driving signal of the metal electrode with human contact there is the lag greater than preset duration to be delayed,
Not with the metal electrode of human contact detection signal rising edge compared to not with the driving of the metal electrode of human contact believe
Number rising edge have no more than preset duration lag be delayed.
6. a kind of device of wearable device identification human action characterized by comprising
Position acquisition module, the contact position for obtaining wearable device, being contacted with human body, the wearable device are hand
Ring, wrist-watch or intelligent jewelry；
Algorithm determining module, for determining action recognition algorithm according to the contact position；
Information acquisition module, for obtaining the action message of sensor acquisition；
Action recognition module, for determining human action according to the action message and the action recognition algorithm.
7. the device of wearable device identification human action according to claim 6, which is characterized in that the position acquisition
Module, comprising:
Signal acquiring unit, for obtaining the driving signal and detection signal of each metal electrode；
Electrode determination unit, for the driving signal and the determining metal with human contact of detection signal according to each metal electrode
Electrode；
Position determination unit, for determining wearable device according to the metal electrode with human contact, being contacted with human body
Contact position.
8. the device of wearable device identification human action according to claim 7, which is characterized in that the signal acquisition
Unit, comprising:
Original signal generates subelement, for generating driving signal；
Original signal exports subelement, for exporting the driving signal to each metal electrode；
Signal receiving subelement is detected, the detection letter returned under the action of the driving signal for receiving each metal electrode
Number.
9. the device of wearable device identification human action according to claim 7, which is characterized in that the position acquisition
Module further includes duration judging unit；
The duration judging unit, for judging the rising edge of the detection signal of each metal electrode and the rising edge of driving signal
Lag time delay whether be greater than preset duration；
The electrode determination unit, for the judgement according to the duration judging unit as a result, will be judged to detecting signal
It rises and is determined as the metal with human contact along the metal electrode that the lag delay with the rising edge of driving signal is greater than preset duration
Electrode.
10. the device of wearable device identification human action according to claim 7, which is characterized in that described wearable
At least one metal electrode and human contact when equipment is worn on human body, the detection signal with the metal electrode of human contact
Rising edge have compared to the rising edge of the driving signal of the metal electrode with human contact and prolong greater than the lag of preset duration
When, the rising edge with the detection signal of the metal electrode of human contact is not compared to the driving not with the metal electrode of human contact
There is the rising edge of signal the lag no more than preset duration to be delayed.
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