CN106293048A - Input information determines method and apparatus - Google Patents
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- CN106293048A CN106293048A CN201510463405.3A CN201510463405A CN106293048A CN 106293048 A CN106293048 A CN 106293048A CN 201510463405 A CN201510463405 A CN 201510463405A CN 106293048 A CN106293048 A CN 106293048A
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Abstract
This application provides a kind of input information and determine method and apparatus, relate to Wearable device field.Described method includes: the finger in response to user performs a push action to an object, obtains the photoplethysmographic PPG information of described finger；Determining a target waveform in described PPG information, on described target waveform, the range value of each point is gradually reduced and is below a threshold value；An input information is determined according to described target waveform.Thus providing a kind of method and apparatus determining input information according to PPG information, described method and apparatus with the PPG sensor in multiplexing Wearable, and can be conducive to improving the interaction capabilities of Wearable.
Description
Technical field
The application relates to Wearable device field, particularly relates to a kind of input information and determines method
And equipment.
Background technology
Along with the universal of electronic equipment and development, present electronic equipment is more and more intelligent.Energy
Enough making that user is convenient, control electronic equipment efficiently is electronic equipment set manufacturer chasing after always
Ask.
Wearable device (such as intelligent watch, Intelligent glove, intelligence decorations in electronic equipment
Product etc.) it is generally of the features such as laminating user, small volume and less weight, energy consumption be relatively low, these features are certainly
Area is little, input capability is weak to have determined the input of most Wearable device, has had a strong impact on user's
Man-machine interaction experience.
Summary of the invention
The purpose of the application is: provide a kind of input information to determine method and apparatus.
First aspect according at least one embodiment of the application, it is provided that a kind of input information is true
Determining method, described method includes:
A finger in response to user performs a push action to an object, obtains described finger
Photoplethysmographic PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually reduced and is below a threshold value；
An input information is determined according to described target waveform.
In conjunction with any one possible implementation of first aspect, in the realization side that the second is possible
In formula, described determine that an input information includes according to described target waveform:
The dynamics pace of change information of described push action is determined according to described target waveform；
Determine the described input information that described dynamics pace of change information is corresponding.
In conjunction with any one possible implementation of first aspect, in the realization side that the third is possible
In formula, the described dynamics pace of change information determining described push action according to described target waveform
Including:
According to the tangent slope that described target waveform is the most a little less, determine described push action
Dynamics pace of change information.
In conjunction with any one possible implementation of first aspect, the 4th kind of possible realization side
In formula, the described tangent slope the most a little less according to described target waveform, determine described pressing
The dynamics pace of change information of action includes:
The meansigma methods of the tangent slope according to points multiple on described target waveform determines described pressing
The average dynamics pace of change value of action.
Second aspect according at least one embodiment of the application, it is provided that a kind of input information is true
Determining method, described method includes:
Perform lift action after pressing an object in response to the finger of user, obtain described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually increased and is above a threshold value；
An input information is determined according to described target waveform.
In conjunction with any one possible implementation of second aspect, in the realization side that the second is possible
In formula, described determine that an input information includes according to described target waveform:
The dynamics pace of change information of described lift action is determined according to described target waveform；
Determine the input information that described dynamics pace of change information is corresponding.
In conjunction with any one possible implementation of second aspect, in the realization side that the third is possible
In formula, the described dynamics pace of change information determining described lift action according to described target waveform
Including:
According to the tangent slope that described target waveform is the most a little less, determine described lift action
Dynamics pace of change information.
In conjunction with any one possible implementation of second aspect, the 4th kind of possible realization side
In formula, the described tangent slope the most a little less according to described target waveform, determine described in lift
The dynamics pace of change information of action includes:
The meansigma methods of the tangent slope according to points multiple on described target waveform is lifted described in determining
The average dynamics pace of change value of action.
The third aspect according at least one embodiment of the application, it is provided that a kind of input information is true
Locking equipment, described equipment includes:
One acquisition module, performs a push action for the finger in response to user to an object,
Obtain the PPG information of described finger；
One first determines module, for determining a target waveform in described PPG information, described
On target waveform, the range value of each point is gradually reduced and is below a threshold value；
One second determines module, for determining an input information according to described target waveform.
In conjunction with any one possible implementation of the third aspect, in the realization side that the second is possible
In formula, described second determines that module includes:
One first determines unit, for determining the power of described push action according to described target waveform
Degree pace of change information；
One second determines unit, for determining corresponding described defeated of described dynamics pace of change information
Enter information.
In conjunction with any one possible implementation of the third aspect, in the realization side that the third is possible
In formula, described second determines unit, for the tangent line the most a little less according to described target waveform
Slope, determines the dynamics pace of change information of described push action.
In conjunction with any one possible implementation of the third aspect, the 4th kind of possible realization side
In formula, described second determines unit, oblique for the tangent line according to points multiple on described target waveform
The meansigma methods of rate determines the average dynamics pace of change value of described push action.
Fourth aspect according at least one embodiment of the application, it is provided that a kind of input information is true
Locking equipment, described equipment includes:
One acquisition module, after pressing an object in response to a finger of user, execution is lifted dynamic
Make, obtain the PPG information of described finger；
One first determines module, for determining a target waveform in described PPG information, described
On target waveform, the range value of each point is gradually increased and is above a threshold value；
One second determines module, for determining an input information according to described target waveform.
In conjunction with any one possible implementation of fourth aspect, in the realization side that the second is possible
In formula, described second determines that module includes:
One first determines unit, for determining the power of described lift action according to described target waveform
Degree pace of change information；
One second determines unit, for determining the input that described dynamics pace of change information is corresponding
Information.
In conjunction with any one possible implementation of fourth aspect, in the realization side that the third is possible
In formula, described second determines unit, for the tangent line the most a little less according to described target waveform
Slope, determines the dynamics pace of change information of described push action.
In conjunction with any one possible implementation of fourth aspect, the 4th kind of possible realization side
In formula, described second determines unit, oblique for the tangent line according to points multiple on described target waveform
The meansigma methods of rate determines the average dynamics pace of change value of described lift action.
The 5th aspect according at least one embodiment of the application, it is provided that a kind of subscriber equipment,
Described subscriber equipment includes:
One memorizer, is used for storing instruction；
One processor, for performing the instruction of described memorizer storage, described instruction makes described
Processor operates below performing:
A finger in response to user performs a push action to an object, obtains described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually reduced and is below a threshold value；
An input information is determined according to described target waveform.
The 6th aspect according at least one embodiment of the application, it is provided that a kind of subscriber equipment,
Described subscriber equipment includes:
One memorizer, is used for storing instruction；
One processor, for performing the instruction of described memorizer storage, described instruction makes described
Processor operates below performing:
Perform lift action after pressing an object in response to the finger of user, obtain described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually increased and is above a threshold value；
An input information is determined according to described target waveform.
The information that inputs described in the embodiment of the present application determines method and apparatus, in response to the proficiency of user
Refer to an object is performed a push action, obtain the PPG information of described finger, at described PPG
Information determines described target waveform, then determines an input information according to described target waveform.
Thus provide a kind of method and apparatus determining input information according to PPG information, described side
Method and equipment can with the PPG sensor in multiplexing Wearable, and be conducive to improving wearing
The interaction capabilities of formula equipment.
Accompanying drawing explanation
Fig. 1 is to input information described in one embodiment of the application to determine the flow chart of method；
PPG waveform when Fig. 2 is that in one embodiment of the application, forefinger quickly presses an object
Figure；
PPG waveform when Fig. 3 is that in one embodiment of the application, forefinger presses at a slow speed an object
Figure；
Fig. 4 is to input information described in another embodiment of the application to determine the flow chart of method；
Fig. 5 be in one embodiment of the application forefinger when a subject surface is quickly lifted
PPG oscillogram；
Fig. 6 be in one embodiment of the application forefinger when a subject surface is lifted at a slow speed
PPG oscillogram；
Fig. 7 is to input information described in one embodiment of the application to determine the module map of equipment；
Fig. 8 is the second module map determining module described in one embodiment of the application；
Fig. 9 is to input information described in another embodiment of the application to determine the module map of equipment；
Figure 10 is the second module map determining module described in one embodiment of the application；
Figure 11 is the hardware architecture diagram of subscriber equipment described in one embodiment of the application；
Figure 12 is the hardware architecture diagram of subscriber equipment described in another embodiment of the application.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the application is made the most in detail
Explanation.Following example are used for illustrating the application, but are not limited to scope of the present application.
It will be appreciated by those skilled in the art that in embodiments herein, the sequence number of following each step
Size be not meant to the priority of execution sequence, the execution sequence of each step should with its function and
Internal logic determine, and the implementation process of the embodiment of the present application should not constituted any restriction.
Inventor finds in research process, when the finger of user performs pressing one object, and
When lifting after pressing, can cause at this finger position gather PPG (photoplethysmographic,
PhotoPlethysmoGraphy) signal produces the change of obvious waveform, and its waveform is pressed
The impact of dynamics pace of change when pressing or lift.Based on this, herein described method can basis
The action dynamics pace of change information of finger is identified by the PPG information gathered at finger,
And then to electronic equipment input information such as Wearable device.
Fig. 1 is to input information described in one embodiment of the application to determine the flow chart of method, described
Method can determine realization on equipment in such as one input information.As it is shown in figure 1, described method
Including:
S120: the finger in response to user performs a push action to an object, obtains described
The PPG information of finger；
S140: determine a target waveform, each point on described target waveform in described PPG information
Range value be gradually reduced and be below a threshold value；
S160: determine a described input information according to described target waveform.
Method described in the embodiment of the present application, an object execution one is pressed by the finger in response to user
Press work, obtain the PPG information of described finger, in described PPG information, determine described mesh
Mark waveform, then determines an input information according to described target waveform.Thus provide a kind of root
The method determining input information according to PPG information, described method can be with in multiplexing Wearable
PPG sensor, the interaction capabilities of the electronic equipments such as Wearable can be effectively improved.
Below with reference to detailed description of the invention, describe described step S120, S140 and S160 in detail
Function.
S120: the finger in response to user performs a push action to an object, obtains described
The PPG information of finger.
Wherein, described finger can be arbitrary finger of user, such as forefinger, thumb etc..Institute
Stating object can be an arbitrary interface contacted, and can be such as display screen, any material
Desktop, the back side of mobile phone, the surface etc. of glass.
S140: determine a target waveform, each point on described target waveform in described PPG information
Range value be gradually reduced and be below a threshold value.
Wherein, the most described finger of described target waveform performs during described push action corresponding
PPG waveform, more specifically, it is the PPG waveform that described finger down process is corresponding.
Inventor studies discovery, and finger down process can cause PPG waveform obvious range value occur
Reduce, therefore, it can determine described target waveform by described threshold value.
Described threshold value is used for detecting whether described PPG waveform occurs that obvious range value reduces, its
Can determine according to the trough range value of PPG waveform when not pressing, such as will not press
The meansigma methods of multiple trough range values of PPG waveform during pressure is as described threshold value.Thus,
May determine that less than the PPG waveform of described threshold portion it is the waveform of corresponding pressing process.
It addition, inventor's research also finds, when when reaching maximum by surging of finger (
No longer increase by surging), the range value of described PPG information is reduced to minima, then opens
Beginning is gradually increased.Therefore, described target waveform should be in the trend being gradually lowered.
Fig. 2 is that in one embodiment of the application, forefinger collects when quickly pressing an object
The oscillogram of PPG information, wherein dotted line lower left waveform (i.e. U1 point and V1 point it
Between waveform) be described target waveform, it can be seen that when user presses, PPG can be caused
Significantly reducing occurs in the range value of waveform, and the range value of its minimum point is significantly less than when not pressing
The range value of the trough of PPG waveform.
Fig. 3 is that in one embodiment of the application, forefinger collects when pressing at a slow speed described object
The oscillogram of PPG information, wherein the waveform of dotted line lower left is described target waveform, permissible
Seeing, when user presses, significantly reducing occurs in the range value also resulting in PPG waveform.
Wherein, in Fig. 3 forefinger by surging less than in Fig. 2 forefinger by surging, and
In Fig. 3, the pressing speed of forefinger is less than the pressing speed in Fig. 2.It will be seen that in two figures
Target waveform there is significantly difference, i.e. target waveform in Fig. 2 is than the object wave in Fig. 3
Shape is more steep, and the application realizes the dynamics pace of change information to push action based on this principle
Identification.
S160: determine an input information according to described target waveform.
In one embodiment, described step S160 may include that
S161: determine the dynamics pace of change information of described push action according to described target waveform；
S162: determine the described input information that described dynamics pace of change information is corresponding.
In described step S161, described dynamics pace of change information refers to the power in the unit interval
Degree changing value, it can be the dynamics change meansigma methods in a period of time, it is also possible to when being specific
The instantaneous dynamics pace of change value carved.Described dynamics pace of change information be pressed simultaneously dynamics and
The impact of pressing speed, in other words, the value of described dynamics pace of change information with by surging and
Pressing speed is the most proportional.
In described step S162, between described dynamics pace of change information and described input information
Corresponding relation can be predetermined.It is average dynamics with described dynamics pace of change information
As a example by pace of change value, its corresponding relation can be as shown in table 1.Assume an intelligence ring and
Intelligent glasses communicates, and on intelligent glasses, multiple APP (application) are in rolling switching state,
Showing an APP on glasses, intelligence ring obtains user and presses the dynamics change of desktop every time
Velocity information, the average dynamics pace of change value recognizing current press action at intelligence ring is
In the case of 8 Ns/second, it simply controls intelligent glasses and chooses currently displaying APP, i.e. stops
Roll, only show current APP；And when intelligence ring recognizes the average of the push action of user
When dynamics pace of change value is 18 Ns/second, it is considered user and is eager to open current application, then
Control intelligent glasses and directly open current APP.Relation table shown in table 1 can be stored in advance in
Inside the Wearable such as described intelligence ring, and can be given in its operation instructions
Such relation table, in order to instruct with to train user corresponding by the action executing in similar table 1
Order input.
Table 1
| Average dynamics pace of change | Input information |
| Less than or equal to 10 Ns/second | Choose order |
| More than 10 Ns/second | Open order |
It addition, include the instantaneous dynamics change speed in multiple moment in described dynamics pace of change information
In the case of angle value, institute can be determined according at least to the instantaneous dynamics pace of change value in two moment
State input information.Such as, it is assumed that pressing starts instantaneous dynamics pace of change when latter 0.2nd second
Being 1 N/second, instantaneous dynamics pace of change when the 0.5th second is 13 Ns/second, can be by both
Jointly input to a games system as a dynamics input instruction.
In one embodiment, described step S161 farther includes:
S1611: according to the tangent slope that described target waveform is the most a little less, determine described by
Press the dynamics pace of change information of work.
Wherein, on described target waveform, the tangent slope of certain point can reflect this some correspondence moment
The instantaneous dynamics pace of change value of described push action, and the absolute value of this tangent slope is the biggest,
Corresponding instantaneous dynamics pace of change value is the biggest, in other words, increases in this some correspondence moment dynamics
Comparatively fast.Concrete, this point can be determined with corresponding reference information according to the tangent slope of this point
Corresponding dynamics pace of change value, this reference information includes that multiple different reference slope is corresponding
Multiple dynamics pace of change values, this reference information can be obtained by training in advance.
In one embodiment, described dynamics pace of change information can be according to described target
During at least one of described to a little less correspondence that the most a little less tangent slope of waveform obtains
The instantaneous dynamics pace of change value carved.
In another embodiment, described dynamics pace of change information can also is that a mean force
Degree pace of change value, the most described step S1611 is further:
S1611 ': determine institute according to the meansigma methods of the tangent slope of points multiple on described target waveform
State the average dynamics pace of change value of push action.
The plurality of point can be all sampled points on described target waveform, or part is adopted
Sampling point.
The plurality of point be on described target waveform all sampled points in the case of, can adopt
Calculate with the existing algorithm such as differentiate and determine that on described target waveform, the tangent line of each sampled point is oblique
Rate, then calculates its meansigma methodsComputing formula can be such that
Wherein, KiRepresenting the tangent slope of ith sample point, n represents on described target waveform
The quantity of sampled point.
In the case of this, described average dynamics can be determined according to described meansigma methods and a reference information
Pace of change value, this average dynamics pace of change value is the average of corresponding whole described push action
Dynamics pace of change value.Described reference information includes multiple with reference to slope meansigma methods with multiple flat
All corresponding relations between dynamics pace of change value, it can be obtained by training in advance.
The plurality of point be on described target waveform fractional-sample point in the case of, it is corresponding
Average dynamics pace of change value be the average of part push action that this fractional-sample point is corresponding
Dynamics changing value, Computing Principle and the plurality of point are all sampled points on described target waveform
Similar, repeat no more.It addition, it will be appreciated by those skilled in the art that described method is except permissible
According to the tangent slope that described target waveform is the most a little less, determine the dynamics of described push action
Outside pace of change information, it is also possible to such as by by described target waveform and multiple reference waveforms
Contrast, to determine the dynamics pace of change information of described push action.Wherein, described many
The corresponding multiple known dynamics pace of change values of individual reference waveform.
Clearer in order to describe, in above-mentioned embodiment, substantially according to described target
Waveform determines described dynamics pace of change information, and then true according to described dynamics pace of change information
Fixed described input information, the most described target waveform, described dynamics pace of change information and institute
State and there is between input information one first corresponding relation.It will be appreciated by those skilled in the art that for institute
For stating the execution equipment of method, it can be concerned about described dynamics pace of change information completely,
It is to say, it can be directly according to second between described target waveform and described input information
Corresponding relation determines described input information, such as by by described target waveform and multiple reference waves
Shape carries out contrasting to determine described input information.Of coursing, for a user, it still has
Described first corresponding relation of necessary understanding, in order to press surging, pressing speed, control by control
The input information that system input is different.
Additionally, the embodiment of the present application also provides for a kind of computer-readable medium, it is included in and is performed
The computer-readable instruction of below Shi Jinhang operation: perform in above-mentioned Fig. 1 illustrated embodiment
Step S120 of method, the operation of S140 and S160.
To sum up, method described in the embodiment of the present application, can obtain in response to the push action of finger
Take the PPG information at finger, and then determine corresponding input according to the PPG information at finger
Information, such that it is able to input information as inputting interface to corresponding electronic equipment using user's body,
Improve the input capability of Wearable etc., improve Consumer's Experience.
Fig. 4 is to input information described in another embodiment of the application to determine the flow chart of method, institute
The method of stating can determine realization on equipment in such as another input information.As shown in Figure 4, described
Method includes:
S420: perform lift action after pressing an object in response to the finger of user, obtain institute
State the PPG information of finger；
S440: determine a target waveform, each point on described target waveform in described PPG information
Range value be gradually increased and be above a threshold value；
S460: determine an input information according to described target waveform.
Method described in the embodiment of the present application, the finger in response to user is sliding to an object execution one
Dynamic action, obtains the PPG information of described finger, determines a target in described PPG information
Waveform, then determines described input information according to described target waveform.Thus provide a kind of root
The method determining input information according to PPG information, described method can be with in multiplexing Wearable
PPG sensor, and be conducive to improve Wearable interaction capabilities.
Below with reference to detailed description of the invention, describe described step S420, S440 and S460 in detail
Function.
S420: perform lift action after pressing an object in response to the finger of user, obtain institute
State the PPG information of finger.
Wherein, described finger can be arbitrary finger of user, such as forefinger, thumb etc..Institute
Stating object can be an arbitrary interface contacted, and can be such as display screen, any material
Desktop, the back side of mobile phone, the surface etc. of glass.Described lift action is the pressing of described finger
After described object, finger gradually leaves the course of action of described subject surface, and wherein finger is being pressed
Pressing and can also do some other actions between work and lift action, such as slide a segment distance.
S440: determine a target waveform, each point on described target waveform in described PPG information
Range value be gradually increased and be above a threshold value.
Wherein, the most described finger of described target waveform performs during described lift action corresponding
PPG waveform.Inventor studies discovery, and finger down process can cause PPG waveform to occur
Significantly range value reduces, and when by surging maximum, the range value of PPG waveform is reduced to
Little value, then, even if user keeps pressing attitude (the constant or minor variations by surging),
The range value of PPG waveform also can be gradually increasing, but the highest being only capable of rises to a sub-peak amplitude value,
This Asia peak amplitude value is significantly lower than the peak amplitude value (letter below of PPG waveform when not pressing
Claim standard wave acrometron angle value).Followed by, user's finger when described subject surface is lifted, meeting
Obvious range value rises to cause PPG waveform to occur, its high amplitude value can reach or super
Cross described standard wave acrometron angle value.
Whether described threshold value can be by detecting the range value of described PPG waveform higher than described Asia
Peak amplitude value, and then detect whether user's finger lifts, therefore, it can be according to described Asia
Peak amplitude value determines.It addition, inventor's research also finds, described sub-peak amplitude value is general
All can be less than the 80% of described standard wave acrometron angle value, therefore, described threshold value such as can be arranged
For described standard wave acrometron angle value 80%.
Fig. 5 is that in one embodiment of the application, forefinger gathered when a subject surface is quickly lifted
The oscillogram of the PPG information arrived, wherein the waveform in dashed rectangle is described target waveform,
It will be seen that when user lifts, the range value of PPG waveform can be caused to occur significantly and to rise
Height, the range value of its peak is apparently higher than the range value of the crest of PPG waveform when not pressing.
Fig. 6 is that in one embodiment of the application, forefinger was adopted when described subject surface is lifted at a slow speed
The oscillogram of the PPG information that collection arrives, wherein the waveform in dashed rectangle is described target waveform,
It will be seen that when user lifts, the range value also resulting in PPG waveform occurs significantly
Raise.
Wherein, in Fig. 6 forefinger lift speed less than Fig. 5 lifts speed.It will be seen that
Target waveform in two figures has significantly difference, i.e. target waveform ratio in Fig. 5 is in Fig. 5
Target waveform more steep, the application realizes changing the dynamics of lift action based on this principle
The identification of velocity information.
It addition, in some cases, if the setting of described threshold value is relatively low, in described PPG information
Multistage range value may be there is be gradually increased and be above in the waveform of a threshold value, such as Fig. 5,
When described threshold value is set to 80% (Th2 in corresponding diagram 5) of described standard wave acrometron angle value,
It can be seen that except the waveform in dashed rectangle in Fig. 5, there is also multistage waveform is all range value
It is gradually increased and is higher than the left side of Th2, a such as dashed rectangle crest below.But,
It will be appreciated by those skilled in the art that really the most relevant to lift action is the ripple in dashed rectangle in fact
Shape.
For this problem, a kind of method is to improve described threshold value, is set to than threshold value as will be described
The 110% of described standard wave acrometron angle value.Before another method combines lift action
Push action determines described target waveform, such as can determine push action pair by another threshold value
The waveform answered, is then gradually increased first paragraph range value after push action and is above described
The waveform of threshold value is as described target waveform.As a example by Fig. 5, can according to another threshold value Th1,
When the range value of described PPG information is less than Th1, it is believed that user performs push action, so
After by this range value less than Th1 waveform after nearest range value be gradually increased and be above
The waveform of described threshold value is as described target waveform.
S460: determine an input information according to described target waveform.
In one embodiment, described step S460 may include that
S461: determine the dynamics pace of change information of described lift action according to described target waveform；
S462: determine the input information that described dynamics pace of change information is corresponding.
In described step S461, described dynamics pace of change information refers to the power in the unit interval
Degree changing value, it can be the dynamics change meansigma methods in a period of time, it is also possible to when being specific
The instantaneous dynamics pace of change value carved.Described dynamics pace of change information lifted simultaneously before by
Surging and lift the impact of speed, in other words, the value of described dynamics pace of change information with lift
Before Qiing by surging and to lift speed the most proportional.
In described step S462, between described dynamics pace of change information and described input information
Corresponding relation can be predetermined.It is average dynamics with described dynamics pace of change information
As a example by pace of change value, its corresponding relation can also be as shown in table 1, different from a upper embodiment
, in the present embodiment, dynamics change is from large to small.
It addition, include the instantaneous dynamics change speed in multiple moment in described dynamics pace of change information
In the case of angle value, institute can be determined according at least to the instantaneous dynamics pace of change value in two moment
Stating input information, described input information can be the input instruction of some electronic games.
In one embodiment, described step S461 farther includes:
S4611: according to the tangent slope that described target waveform is the most a little less, determine described in lift
Play the dynamics pace of change information of action.
Wherein, on described target waveform, the tangent slope of certain point can reflect this some correspondence moment
The instantaneous dynamics pace of change value of described push action, and the absolute value of this tangent slope is the biggest,
Corresponding instantaneous dynamics pace of change value is the biggest, in other words, reduces in this some correspondence moment dynamics
Comparatively fast.Concrete, this point can be determined with corresponding reference information according to the tangent slope of this point
Corresponding dynamics pace of change value, this reference information includes that multiple different reference slope is corresponding
Multiple dynamics pace of change values, this reference information can be obtained by training in advance.
In one embodiment, described dynamics pace of change information can be according to described target
During at least one of described to a little less correspondence that the most a little less tangent slope of waveform obtains
The instantaneous dynamics pace of change value carved.
In another embodiment, described dynamics pace of change information can also is that a mean force
Degree pace of change value, the most described step S4611 is further:
S4611 ': determine institute according to the meansigma methods of the tangent slope of points multiple on described target waveform
State the average dynamics pace of change value of lift action.
The plurality of point can be all sampled points on described target waveform, or part is adopted
Sampling point.
The plurality of point be on described target waveform all sampled points in the case of, permissible
Use the existing algorithm such as differentiate to calculate and determine the tangent line of each sampled point on described target waveform
Slope, then calculates its meansigma methodsComputing formula can be such that
Wherein, KjRepresenting the tangent slope of jth sampled point, m represents on described target waveform
The quantity of sampled point.
In the case of this, described average dynamics can be determined according to described meansigma methods and a reference information
Pace of change value, this average dynamics pace of change value is the average of corresponding whole described lift action
Dynamics pace of change value.Described reference information includes multiple with reference to slope meansigma methods with multiple flat
All corresponding relations between dynamics pace of change value, it can be obtained by training in advance.
The plurality of point be on described target waveform fractional-sample point in the case of, it is corresponding
Average dynamics pace of change value be the average of part lift action that this fractional-sample point is corresponding
Dynamics changing value, Computing Principle and the plurality of point are all sampled points on described target waveform
Similar, repeat no more.
Clearer in order to describe, in above-mentioned embodiment, substantially according to described target
Waveform determines described dynamics pace of change information, and then true according to described dynamics pace of change information
Fixed described input information, the most described target waveform, described dynamics pace of change information and institute
State and there is between input information one the 3rd corresponding relation.It will be appreciated by those skilled in the art that for institute
For stating the execution equipment of method, it can be concerned about described dynamics pace of change information completely,
It is to say, it can be directly according to the 4th between described target waveform and described input information
Corresponding relation determines described input information, such as by by described target waveform and multiple reference waves
Shape carries out contrasting to determine described input information.Of coursing, for a user, it still has
Described 3rd corresponding relation of necessary understanding, in order to lift speed etc. by control, controls input not
Same input information.
Additionally, the embodiment of the present application also provides for a kind of computer-readable medium, it is included in and is performed
The computer-readable instruction of below Shi Jinhang operation: perform in above-mentioned Fig. 4 illustrated embodiment
Step S420 of method, the operation of S440 and S460.
To sum up, method described in the embodiment of the present application, can obtain in response to the lift action of finger
Take the PPG information at finger, and then can be according to the PPG information at finger to corresponding electricity
Subset input information, such that it is able to set to corresponding electronics using user's body as inputting interface
Standby input information, improves the input capability of Wearable etc., improves Consumer's Experience.
Fig. 7 is to input information described in one embodiment of the invention to determine that the modular structure of equipment is shown
Being intended to, described input information determines that equipment can be arranged at intelligence ring as a functional module
Etc. in Wearable device, the most also can make for user as an independent Wearable device
With.As it is shown in fig. 7, described equipment 700 may include that
One acquisition module 710, presses for one object being performed one in response to a finger of user
Action, obtains the PPG information of described finger；
One first determines module 720, for determining a target waveform in described PPG information,
On described target waveform, the range value of each point is gradually reduced and is below a threshold value；
One second determines module 730, for determining an input information according to described target waveform.
Equipment described in the embodiment of the present application, an object execution one is pressed by the finger in response to user
Press work, obtain the PPG information of described finger, in described PPG information, determine described mesh
Mark waveform, then determines described input information according to described target waveform.Thus provide one
Determine the equipment of input information according to PPG information, described equipment can be with multiplexing Wearable
On PPG sensor, and be conducive to improve Wearable interaction capabilities.
Below with reference to detailed description of the invention, describe in detail described acquisition module 710, described
One determines that module 720 and described second determines the function of module 730.
Described acquisition module 710, presses for one object being performed one in response to a finger of user
Press work, obtain the PPG information of described finger.
Wherein, described finger can be arbitrary finger of user, such as forefinger, thumb etc..Institute
Stating object can be an arbitrary interface contacted, and can be such as display screen, any material
Desktop, the back side of mobile phone, the surface etc. of glass.
First determines module 720, for determining a target waveform, institute in described PPG information
State the range value of each point on target waveform and be gradually reduced and be below a threshold value.
Wherein, the most described finger of described target waveform performs during described push action corresponding
PPG waveform, more specifically, it is the PPG waveform that described finger down process is corresponding.
Inventor studies discovery, and finger down process can cause PPG waveform obvious range value occur
Reduce, therefore, it can determine described target waveform by described threshold value.
Described threshold value is used for detecting whether described PPG waveform occurs that obvious range value reduces, its
Can determine according to the trough range value of PPG waveform when not pressing, such as will not press
The meansigma methods of multiple trough range values of PPG waveform during pressure is as described threshold value.Thus,
May determine that less than the PPG waveform of described threshold portion it is the waveform of corresponding pressing process.
It addition, inventor's research also finds, when when reaching maximum by surging of finger (
No longer increase by surging), the range value of described PPG information is reduced to minima, then opens
Beginning is gradually increased.Therefore, described target waveform should be in the trend being gradually lowered.
Second determines module 730, for determining an input information according to described target waveform.
In one embodiment, seeing Fig. 8, described second determines that module 730 may include that
One first determines unit 731, for determining described push action according to described target waveform
Dynamics pace of change information；
One second determines unit 732, for determining the institute that described dynamics pace of change information is corresponding
State input information.
Described first determines in unit 731, and described dynamics pace of change information refers to the unit interval
Interior dynamics changing value, it can be the dynamics change meansigma methods in a period of time, it is also possible to be
The instantaneous dynamics pace of change value of particular moment.Described dynamics pace of change information is pressed simultaneously
Dynamics and the impact of pressing speed, in other words, the value of described dynamics pace of change information and pressing
Dynamics and pressing speed are the most proportional.
Described second determines in unit 732, described dynamics pace of change information and described input letter
Corresponding relation between breath can be predetermined.It is flat with described dynamics pace of change information
All as a example by dynamics pace of change value, its corresponding relation can be as shown in table 1.
It addition, include the instantaneous dynamics change speed in multiple moment in described dynamics pace of change information
In the case of angle value, institute can be determined according at least to the instantaneous dynamics pace of change value in two moment
State input information.
In one embodiment, described second determines unit 732, for according to described target
The tangent slope that waveform is the most a little less, determines the dynamics pace of change information of described push action.
Wherein, on described target waveform, the tangent slope of certain point can reflect this some correspondence moment
The instantaneous dynamics pace of change value of described push action, and the absolute value of this tangent slope is the biggest,
Corresponding instantaneous dynamics pace of change value is the biggest, in other words, increases in this some correspondence moment dynamics
Comparatively fast.Concrete, this point can be determined with corresponding reference information according to the tangent slope of this point
Corresponding dynamics pace of change value, this reference information includes that multiple different reference slope is corresponding
Multiple dynamics pace of change values, this reference information can be obtained by training in advance.
In one embodiment, described dynamics pace of change information can be according to described target
During at least one of described to a little less correspondence that the most a little less tangent slope of waveform obtains
The instantaneous dynamics pace of change value carved.
In another embodiment, described dynamics pace of change information can also is that a mean force
Degree pace of change value, described second determines unit 732, for according to many on described target waveform
The meansigma methods of the tangent slope of individual point determines the average dynamics pace of change value of described push action.
The plurality of point can be all sampled points on described target waveform, or part is adopted
Sampling point.
The plurality of point be on described target waveform all sampled points in the case of, can adopt
Calculate with the existing algorithm such as differentiate and determine that on described target waveform, the tangent line of each sampled point is oblique
Rate, then calculates its meansigma methodsComputing formula can be such as formula (1).
In the case of this, described average dynamics can be determined according to described meansigma methods and a reference information
Pace of change value, this average dynamics pace of change value is the average of corresponding whole described push action
Dynamics pace of change value.Described reference information includes multiple with reference to slope meansigma methods with multiple flat
All corresponding relations between dynamics pace of change value, it can be obtained by training in advance.
The plurality of point be on described target waveform fractional-sample point in the case of, it is corresponding
Average dynamics pace of change value be the average of part push action that this fractional-sample point is corresponding
Dynamics changing value, Computing Principle and the plurality of point are all sampled points on described target waveform
Similar, repeat no more.It addition, it will be appreciated by those skilled in the art that described method is except permissible
According to the tangent slope that described target waveform is the most a little less, determine the dynamics of described push action
Outside pace of change information, it is also possible to such as by by described target waveform and multiple reference waveforms
Contrast, to determine the dynamics pace of change information of described push action.Wherein, described many
The corresponding multiple known dynamics pace of change values of individual reference waveform.
Fig. 9 is to input information described in another embodiment of the present invention to determine that the modular structure of equipment is shown
Being intended to, described input information determines that equipment can be arranged at intelligence ring as a functional module
Etc. in Wearable device, the most also can make for user as an independent Wearable device
With.As it is shown in figure 9, described equipment 900 may include that
One acquisition module 910, performs to lift after pressing an object in response to a finger of user
Play action, obtain the PPG information of described finger；
One first determines module 920, for determining a target waveform in described PPG information,
On described target waveform, the range value of each point is gradually increased and is above a threshold value；
One second determines module 930, for determining an input information according to described target waveform.
Equipment described in the embodiment of the present application, performs after pressing an object in response to the finger of user
Lift action, obtains the PPG information of described finger, determines described in described PPG information
Target waveform, then determines described input information according to described target waveform.Thus provide one
Planting the equipment determining input information according to PPG information, described method can set with multiplexing Wearable
Standby upper PPG sensor, and be conducive to improving the interaction capabilities of Wearable.
Below with reference to detailed description of the invention, describe described acquisition module 910, first in detail true
Cover half block 920 and second determines the function of module 930.
Described acquisition module 910, performs after pressing an object in response to a finger of user
Lift action, obtains the PPG information of described finger.
Wherein, described finger can be arbitrary finger of user, such as forefinger, thumb etc..Institute
Stating object can be an arbitrary interface contacted, and can be such as display screen, any material
Desktop, the back side of mobile phone, the surface etc. of glass.Described lift action is the pressing of described finger
After described object, finger gradually leaves the course of action of described subject surface, and wherein finger is being pressed
Pressing and can also do some other actions between work and lift action, such as slide a segment distance.
Described first determines module 920, for determining a target waveform in described PPG information,
On described target waveform, the range value of each point is gradually increased and is above a threshold value.
Wherein, the most described finger of described target waveform performs during described lift action corresponding
PPG waveform.Inventor studies discovery, and finger down process can cause PPG waveform to occur
Significantly range value reduces, and when by surging maximum, the range value of PPG waveform is reduced to
Little value, then, even if user keeps pressing attitude (the constant or minor variations by surging),
The range value of PPG waveform also can be gradually increasing, but the highest being only capable of rises to a sub-peak amplitude value,
This Asia peak amplitude value is significantly lower than the peak amplitude value (letter below of PPG waveform when not pressing
Claim standard wave acrometron angle value).Followed by, user's finger when described subject surface is lifted, meeting
Obvious range value rises to cause PPG waveform to occur, its high amplitude value can reach or super
Cross described standard wave acrometron angle value.
Whether described threshold value can be by detecting the range value of described PPG waveform higher than described Asia
Peak amplitude value, and then detect whether user's finger lifts, therefore, it can be according to described Asia
Peak amplitude value determines.It addition, inventor's research also finds, described sub-peak amplitude value is general
All can be less than the 80% of described standard wave acrometron angle value, therefore, described threshold value such as can be arranged
For described standard wave acrometron angle value 80%.
Described second determines module 930, for determining an input information according to described target waveform.
In one embodiment, seeing Figure 10, described second determines that module 930 may include that
One first determines unit 931, for determining described lift action according to described target waveform
Dynamics pace of change information；
One second determines unit 932, is used for determining that described dynamics pace of change information is corresponding
Input information.
Described first determines in unit 931, and described dynamics pace of change information refers to the unit interval
Interior dynamics changing value, it can be the dynamics change meansigma methods in a period of time, it is also possible to be
The instantaneous dynamics pace of change value of particular moment.Described dynamics pace of change information is lifted simultaneously
Before by surging and the impact lifting speed, in other words, described dynamics pace of change information
Value with lift before by surging and to lift speed the most proportional.
Described second determines in unit 932, described dynamics pace of change information and described input letter
Corresponding relation between breath can be predetermined.It is flat with described dynamics pace of change information
All as a example by dynamics pace of change value, its corresponding relation can also be as shown in table 1, implements with upper one
Unlike example, in the present embodiment, dynamics change is from large to small.
It addition, include the instantaneous dynamics change speed in multiple moment in described dynamics pace of change information
In the case of angle value, institute can be determined according at least to the instantaneous dynamics pace of change value in two moment
Stating input information, described input information can be the input instruction of some electronic games.
In one embodiment, described second determines unit 932, for according to described target
The tangent slope that waveform is the most a little less, determines the dynamics pace of change information of described push action.
Wherein, on described target waveform, the tangent slope of certain point can reflect this some correspondence moment
The instantaneous dynamics pace of change value of described push action, and the absolute value of this tangent slope is the biggest,
Corresponding instantaneous dynamics pace of change value is the biggest, in other words, reduces in this some correspondence moment dynamics
Comparatively fast.Concrete, this point can be determined with corresponding reference information according to the tangent slope of this point
Corresponding dynamics pace of change value, this reference information includes that multiple different reference slope is corresponding
Multiple dynamics pace of change values, this reference information can be obtained by training in advance.
In one embodiment, described dynamics pace of change information can be according to described target
During at least one of described to a little less correspondence that the most a little less tangent slope of waveform obtains
The instantaneous dynamics pace of change value carved.
In another embodiment, described dynamics pace of change information can also is that a mean force
Degree pace of change value, described second determines unit 932, for according to many on described target waveform
The meansigma methods of the tangent slope of individual point determines the average dynamics pace of change value of described lift action.
The plurality of point can be all sampled points on described target waveform, or part is adopted
Sampling point.
The plurality of point be on described target waveform all sampled points in the case of, permissible
Use the existing algorithm such as differentiate to calculate and determine the tangent line of each sampled point on described target waveform
Slope, then calculates its meansigma methodsComputing formula can be such as formula (2).
In the case of this, described average dynamics can be determined according to described meansigma methods and a reference information
Pace of change value, this average dynamics pace of change value is the average of corresponding whole described lift action
Dynamics pace of change value.Described reference information includes multiple with reference to slope meansigma methods with multiple flat
All corresponding relations between dynamics pace of change value, it can be obtained by training in advance.
The plurality of point be on described target waveform fractional-sample point in the case of, it is corresponding
Average dynamics pace of change value be the average of part lift action that this fractional-sample point is corresponding
Dynamics changing value, Computing Principle and the plurality of point are all sampled points on described target waveform
Similar, repeat no more.
The hardware configuration of subscriber equipment described in one embodiment of the application is as shown in figure 11.This Shen
Described subscriber equipment please not implemented and limits by specific embodiment, see Figure 11,
Described equipment 1100 may include that
Processor (processor) 1110, communication interface (Communications Interface) 1120,
Memorizer (memory) 1130, and communication bus 1140.Wherein:
Processor 1110, communication interface 1120, and memorizer 1130 is by communication bus 1140
Complete mutual communication.
Communication interface 1120, is used for and other net element communications.
Processor 1110, is used for the program that performs 1132, specifically can perform shown in above-mentioned Fig. 1
Embodiment of the method in correlation step.
Specifically, program 1132 can include that program code, described program code include calculating
Machine operational order.
Processor 1110 is probably a central processor CPU, or specific integrated circuit
ASIC (Application Specific Integrated Circuit), or be configured to implement
One or more integrated circuits of the embodiment of the present application.
Memorizer 1130, is used for program of depositing 1132.Memorizer 1130 may comprise at a high speed
RAM memory, it is also possible to also include nonvolatile memory (non-volatile memory),
For example, at least one disk memory.Program 1132 specifically can perform following steps:
A finger in response to user performs a push action to an object, obtains described finger
Photoplethysmographic PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually reduced and is below a threshold value；
An input information is determined according to described target waveform.
In program 1132, each step implements the corresponding step that may refer in above-described embodiment
Rapid or module, is not repeated herein.Those skilled in the art it can be understood that arrive, for
The convenience that describes and succinct, the equipment of foregoing description and the specific works process of module, Ke Yican
State the corresponding process in embodiment of the method before examination to describe, do not repeat them here.
The hardware configuration of subscriber equipment described in another embodiment of the application is as shown in figure 12.This
Described subscriber equipment is not implemented and limits by application specific embodiment, sees Figure 12,
Described equipment 1200 may include that
Processor (processor) 1210, communication interface (Communications Interface) 1220,
Memorizer (memory) 1230, and communication bus 1240.Wherein:
Processor 1210, communication interface 1220, and memorizer 1230 passes through communication bus
1240 complete mutual communication.
Communication interface 1220, is used for and other net element communications.
Processor 1210, is used for the program that performs 1232, specifically can perform shown in above-mentioned Fig. 1
Embodiment of the method in correlation step.
Specifically, program 1232 can include that program code, described program code include calculating
Machine operational order.
Processor 1210 is probably a central processor CPU, or specific integrated circuit
ASIC (Application Specific Integrated Circuit), or be configured to implement
One or more integrated circuits of the embodiment of the present application.
Memorizer 1230, is used for program of depositing 1232.Memorizer 1230 may comprise at a high speed
RAM memory, it is also possible to also include nonvolatile memory (non-volatile memory),
For example, at least one disk memory.Program 1232 specifically can perform following steps:
Perform lift action after pressing an object in response to the finger of user, obtain described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually increased and is above a threshold value；
An input information is determined according to described target waveform.
In program 1232, each step implements the corresponding step that may refer in above-described embodiment
Rapid or module, is not repeated herein.Those skilled in the art it can be understood that arrive, for
The convenience that describes and succinct, the equipment of foregoing description and the specific works process of module, Ke Yican
State the corresponding process in embodiment of the method before examination to describe, do not repeat them here.
Those of ordinary skill in the art are it is to be appreciated that combine the embodiments described herein and retouch
The unit of each example stated and method step, it is possible to electronic hardware or computer software and
Being implemented in combination in of electronic hardware.These functions perform with hardware or software mode actually,
Depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can be to often
Individual specifically should being used for uses different methods to realize described function, but this realization is not
It is considered as beyond scope of the present application.
If described function realizes and as independent product pin using the form of SFU software functional unit
When selling or use, can be stored in a computer read/write memory medium.Based on such
Understand, part that prior art is contributed by the technical scheme of the application the most in other words or
The part of this technical scheme of person can embody with the form of software product, this computer software
Product is stored in a storage medium, including some instructions with so that a computer equipment
(can be personal computer, controller, or the network equipment etc.) performs the application, and each is real
Execute all or part of step of method described in example.And aforesaid storage medium includes: USB flash disk, shifting
Dynamic hard disk, read only memory (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
Embodiment of above is merely to illustrate the application, and not restriction to the application, relevant
The those of ordinary skill of technical field, in the case of without departing from spirit and scope,
Can also make a variety of changes and modification, the technical scheme of the most all equivalents falls within the application
Category, the scope of patent protection of the application should be defined by the claims.
Claims (10)
1. an input information determines method, it is characterised in that described method includes:
A finger in response to user performs a push action to an object, obtains described finger
Photoplethysmographic PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually reduced and is below a threshold value；
An input information is determined according to described target waveform.
2. the method for claim 1, it is characterised in that described according to described target
Waveform determines that an input information includes:
The dynamics pace of change information of described push action is determined according to described target waveform；
Determine the described input information that described dynamics pace of change information is corresponding.
3. method as claimed in claim 2, it is characterised in that described according to described target
Waveform determines that the dynamics pace of change information of described push action includes:
According to the tangent slope that described target waveform is the most a little less, determine described push action
Dynamics pace of change information.
4. an input information determines method, it is characterised in that described method includes:
Perform lift action after pressing an object in response to the finger of user, obtain described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually increased and is above a threshold value；
An input information is determined according to described target waveform.
5. method as claimed in claim 4, it is characterised in that described according to described target
Waveform determines that an input information includes:
The dynamics pace of change information of described lift action is determined according to described target waveform；
Determine the input information that described dynamics pace of change information is corresponding.
6. an input information determines equipment, it is characterised in that described equipment includes:
One acquisition module, performs a push action for the finger in response to user to an object,
Obtain the PPG information of described finger；
One first determines module, for determining a target waveform in described PPG information, described
On target waveform, the range value of each point is gradually reduced and is below a threshold value；
One second determines module, for determining an input information according to described target waveform.
7. an input information determines equipment, it is characterised in that described equipment includes:
One acquisition module, after pressing an object in response to a finger of user, execution is lifted dynamic
Make, obtain the PPG information of described finger；
One first determines module, for determining a target waveform in described PPG information, described
On target waveform, the range value of each point is gradually increased and is above a threshold value；
One second determines module, for determining an input information according to described target waveform.
8. a Wearable device, it is characterised in that described Wearable device includes power
Profit requires that the input information described in 6 or 7 determines equipment.
9. a subscriber equipment, it is characterised in that described subscriber equipment includes:
One memorizer, is used for storing instruction；
One processor, for performing the instruction of described memorizer storage, described instruction makes described
Processor operates below performing:
A finger in response to user performs a push action to an object, obtains described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually reduced and is below a threshold value；
An input information is determined according to described target waveform.
10. a subscriber equipment, it is characterised in that described subscriber equipment includes:
One memorizer, is used for storing instruction；
One processor, for performing the instruction of described memorizer storage, described instruction makes described
Processor operates below performing:
Perform lift action after pressing an object in response to the finger of user, obtain described finger
PPG information；
A target waveform is determined, the amplitude of each point on described target waveform in described PPG information
Value is gradually increased and is above a threshold value；
An input information is determined according to described target waveform.
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| CN111580664A (en) * | 2020-05-11 | 2020-08-25 | 清华大学 | Method and system for recognizing uplift gesture, electronic device and storage medium |
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