CN108181990A - Control method and smartwatch based on infrared gesture identification - Google Patents
Control method and smartwatch based on infrared gesture identification Download PDFInfo
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- CN108181990A CN108181990A CN201810053559.9A CN201810053559A CN108181990A CN 108181990 A CN108181990 A CN 108181990A CN 201810053559 A CN201810053559 A CN 201810053559A CN 108181990 A CN108181990 A CN 108181990A
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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
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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Abstract
A kind of control method based on infrared gesture identification, for controlling smartwatch, including：Nearby emit infrared signal to the arm for wearing the smartwatch, during so that finger sending out the deliberate action for representing operational order near the smartwatch, the infrared signal is reflected；Receive the infrared signal reflected by finger；According to the infrared signal received, parsing obtains the operational order；According to the operational order, the application program of the smartwatch is operated.The above-mentioned control method based on infrared gesture identification does not need to increase input hardware, and larger change need not occur for the shape of smartwatch, directly complete gesture identification using smartwatch.With relatively low cost and power consumption, the input mode of smartwatch is extended, improves the usage experience of user.And usage scenario is not limited, gesture motion is simple, and recognizer is simple, efficient.
Description
Technical field
The present invention relates to technical field of hand gesture recognition, more particularly to a kind of control method based on infrared gesture identification and
Smartwatch.
Background technology
In order to pursue portability and low-power consumption, the touch screen area of smartwatch is generally all smaller, this is to user above
Complete it is various operation (such as upper and lower roll screen, scaling, click) bring certain difficulty, user particularly thicker to finger and
Speech.
At present, for smartwatch touch operation it is limited the technical issues of, people are by contactless Gesture Recognition
It is introduced into smartwatch field.Tether-free technologies mainly using external camera, laser, infrared detector is even wireless
Radar identifies the limbs behavior of user to detect.
This kind of technology generally requires to lay a large amount of outside plants, and have using area, ambient lighting etc. harsh requirement,
It is easily limited by usage scenario, realizes that difficulty is larger.
Invention content
Based on this, it is necessary to need to lay a large amount of outside plants and its to using area, environment for Gesture Recognition
Illumination etc. has the technical issues of rigors, provides a kind of control method based on infrared gesture identification.
The gesture motion of identification user is detected by installing infrared receiver in smartwatch side, so as to fulfill letter
Single gesture identification function.
A kind of control method based on infrared gesture identification, for controlling smartwatch, including：To the wearing intelligent hand
The arm of table nearby emits infrared signal, so that finger sends out the deliberate action for representing operational order near the smartwatch
When, the infrared signal is reflected；Receive the infrared signal reflected by finger；According to the infrared signal received,
Parsing obtains the operational order；According to the operational order, the application program of the smartwatch is operated.
The above-mentioned control method based on infrared gesture identification does not need to increase input hardware, and the shape of smartwatch need not
Larger change occurs, directly completes gesture identification using smartwatch.With relatively low cost and power consumption, smartwatch is extended
Input mode improves the usage experience of user.And usage scenario is not limited, gesture motion is simple, and recognizer is simple, effect
Rate is high.
It is described in one of the embodiments, to receive the infrared signal reflected by finger, it specifically includes：It receives described
First infrared signal of finger reflection；The deliberate action for representing operational order is sent out near the smartwatch in the finger
During, the signal strength of first infrared signal changes, and obtains the first change in signal strength curve；Receive by
Second infrared signal of the finger reflection；It is sent out near the smartwatch in the finger and represents the default of operational order
During action, the signal strength of second infrared signal changes, and obtains second signal intensity variation curve；Its
In, the first change in signal strength curve and the second signal intensity variation curve are presented with impulse form.
The infrared signal that the basis receives in one of the embodiments, parsing obtain the operational order,
It specifically includes：According to the first change in signal strength curve, the movable information of the finger is parsed, obtains the corresponding behaviour
It instructs；According to the second signal intensity variation curve, the movable information of the finger is parsed, obtains the corresponding operation
Instruction；According to the first change in signal strength curve and the second signal intensity variation curve, the fortune of the finger is parsed
Dynamic information obtains the corresponding operational order.
Control method in one of the embodiments, based on infrared gesture identification further includes：Define the collection of deliberate action
It closes；Work out the operational order set of the application program；Establish reflecting for the deliberate action set and the operational order set
Penetrate relationship.
The mapping for establishing the deliberate action set and the operational order set is closed in one of the embodiments,
The step of being, including：Select an operational order option in the operational order set；Typing corresponds to the operational order choosing
The deliberate action of item；Preserve the mapping relations of the deliberate action and the operational order option.
An operational order option in the selection operational order set in one of the embodiments, specifically
Including：Select roll screen instruction options.The typing corresponds to the deliberate action of the operational order option, specifically includes：Record
Enter finger and slide up and down action.It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：
It preserves the finger and slides up and down action and the mapping relations of the roll screen instruction options.When finger described in typing slide up and down it is dynamic
When making, the first change in signal strength curve is equal with the waveform duty cycle of the second signal intensity variation curve and exists
Phase difference according to the first duty ratio of the first, second change in signal strength curve and the time difference, obtains the hand
Finger slides up and down the corresponding roll screen instruction of action.
An operational order option in the selection operational order set in one of the embodiments, specifically
Including：Selection scaling instruction options.The typing corresponds to the deliberate action of the operational order option, specifically includes：Record
Enter two fingers and mediate expansion action.It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：
Preserve the mapping relations that the two fingers mediate expansion action and the scaling instruction options.It mediates to open when two fingers described in typing and move
When making, the first change in signal strength curve is equal with the waveform duty cycle of the second signal intensity variation curve and does not have
Time difference, the second duty according to the first, second change in signal strength curve when the pulse signal rise time and
Fall time obtains the two fingers and mediates the corresponding scaling instruction of expansion action.
An operational order option in the selection operational order set in one of the embodiments, specifically
Including：Option of operation is clicked in selection.The typing corresponds to the deliberate action of the operational order option, specifically includes：Record
Enter click action.It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：Described in preservation
Click action and the mapping relations of the click commands option.When the click action of typing different location, described first
Change in signal strength curve is different from the waveform duty cycle of the second signal intensity variation curve, according to described first, second
The third duty of change in signal strength curve when pulse signal rise time and fall time, obtain the click action
The corresponding click commands, wherein, the third duty ratio is less than second duty ratio.
A kind of smartwatch based on infrared gesture identification, including：Infrared emission unit, positioned at the one of the smartwatch
Side, for nearby emitting infrared signal to the arm for wearing the smartwatch, so that finger is sent out near the smartwatch
When going out to represent the deliberate action of operational order, the infrared signal is reflected；Infrared receiver, with the infrared emission
Unit is located at the same side of the smartwatch, receives the infrared signal reflected by finger；Processing unit connects for basis
The infrared signal received, parsing obtain the operational order；Control unit, for according to the operational order, operating institute
State the application program of smartwatch；It wears, for the smartwatch to be affixed to the arm.
The above-mentioned smartwatch based on infrared gesture identification does not need to increase input hardware, smartwatch to smartwatch
Shape larger change need not occur, directly using smartwatch complete gesture identification.With relatively low cost and power consumption, extend
The input mode of smartwatch improves the usage experience of user.And usage scenario is not limited, gesture motion is simple, identification
Algorithm is simple, efficient.
The infrared emission unit is n in one of the embodiments, n >=1；The infrared receiver is n, n
≥2；The infrared emission unit emits infrared signal along the arm extending direction for wearing the smartwatch；The infrared hair
The beam thickness for penetrating unit is adjustable, so that the beam plane of the infrared signal and the skin surface near the smartwatch are near
Like parallel；The transmission power of the infrared emission unit is adjustable, so that described in the emitting area covering of the infrared emission unit
Skin area near smartwatch.The infrared emission unit and the infrared receiver are worked with impulse form, with
It saves energy.
Description of the drawings
Fig. 1 is the control method flow chart based on infrared gesture identification in an embodiment provided by the invention；
Fig. 2 is that the control method based on infrared gesture identification emits and receive infrared letter in an embodiment provided by the invention
Number range schematic diagram；
Fig. 3 is the control method flow chart based on infrared gesture identification in a preferred embodiment provided by the invention；
Fig. 4 is the mapping pass that deliberate action set and operational order set are established in a preferred embodiment provided by the invention
The flow chart of system；
Fig. 5 is the schematic diagram of the control method upward sliding based on infrared gesture identification in an embodiment provided by the invention
And its corresponding infrared signal intensity variation curve；
Fig. 6 is the schematic diagram of the control method slide downward based on infrared gesture identification in an embodiment provided by the invention
And its corresponding infrared signal intensity variation curve；
Fig. 7 be in an embodiment provided by the invention control method two fingers based on infrared gesture identification open schematic diagram and
Its corresponding infrared signal intensity variation curve；
Fig. 8 be in an embodiment provided by the invention control method two fingers based on infrared gesture identification mediate schematic diagram and
Its corresponding infrared signal intensity variation curve；
Fig. 9 is the first click action of control method signal based on infrared gesture identification in an embodiment provided by the invention
Figure and its corresponding infrared signal intensity variation curve；
Figure 10 is that the second click action of control method based on infrared gesture identification is shown in an embodiment provided by the invention
Intention and its corresponding infrared signal intensity variation curve；
Figure 11 is that the control method third click action based on infrared gesture identification is shown in an embodiment provided by the invention
Intention and its corresponding infrared signal intensity variation curve；
Figure 12 is the smartwatch module diagram based on infrared gesture identification in an embodiment provided by the invention；
Figure 13 is the smartwatch schematic diagram based on infrared gesture identification in an embodiment provided by the invention.
Wherein, label declaration is as follows：
300 smartwatch 350 are worn
310 first infrared receiver, 400 processing unit
320 second infrared receiver, 500 control unit
330 infrared emission units
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 and Fig. 2 are referred to, in one embodiment, a kind of control method based on infrared gesture identification, for controlling
Smartwatch includes the following steps：
S100：Nearby emit infrared signal to the arm for wearing smartwatch 300, so that finger is attached in smartwatch 300
When closely sending out the deliberate action for representing operational order, infrared signal is reflected.
Infrared signal refers to electromagnetic wave of the wavelength between 0.76um~1mm, and wavelength is longer than visible ray, it is however generally that no
It can be seen by naked eyes, and can infrared signal be detected by infrared receiver.
Operational order is the instruction and order that smartwatch 300 is commanded to work.For example, operational order have home keys, return,
Page zoom-in and zoom-out, roll screen, amplification picture, reduce picture, open music player software, it is upper one head, next etc..
User can operate the application program of smartwatch 300 by some gesture motions, whens these gesture motions needs
It has been be set in advance that, deliberate action is the gesture motion being set in advance.For example, deliberate action includes, two fingers are mediated, two fingers are opened
It opens, singly refers to upward sliding, single be directed toward lower slider and the gesture motions such as click.When the gesture motion of user is consistent with deliberate action
When, control unit sends out operational order corresponding with gesture motion, the application program operation of control smartwatch 300.
The side installation infrared emission unit 330 and infrared receiver of smartwatch 300,330 He of infrared emission unit
The direction of infrared receiver is corresponding with the arm neighbouring position for wearing smartwatch 300.
Side Sequential arrangement and lay out of the infrared optical diode of infrared emission unit 330 along smartwatch 300.Infrared emission
The default one or more infrared spotlights of unit 330, such as infrared light-emitting diode, for emitting infrared signal.Smartwatch
300 infrared emission unit 330 A1 field emission infrared signals, finger near the arm for wearing smartwatch 300 are being worn
The arm near zone of smartwatch 300 sends out deliberate action, and finger reflects infrared signal.
S200：Receive the infrared signal reflected by the finger.
Infrared emission unit 330 nearby emits infrared signal to the arm for wearing smartwatch 300, and finger is wearing intelligence
The arm of wrist-watch 300 nearby sends out deliberate action in A1 regions, and finger reflects infrared signal.User sends out different gestures
Action, infrared receiver detects the infrared signal of different luminous intensities, right during user sends out preset gesture motion
Infrared signal is reflected, and infrared receiver receives the infrared signal reflected by finger, moreover, the infrared signal received
Luminous intensity intensity variation curve is formed as gesture motion changes.
Infrared receiver is made of one or more sensing element.Some effects caused by infrared signal irradiation object
Should, it is measured using one or more sensing element, sensing element is determined by the variation of measure physical parameters
The infra-red radiation absorbed is used for measuring the power of infra-red radiation.For example, it is in using infrared signal and matter interaction
Reveal the sensor of physical effect detection infrared signal come.Infrared receiver using its between the infrared signal that is reflected
The showed electrical effects of interaction will change into electric signal by incident infrared signal, infra-red radiation (quilt is measured with this
The infrared signal of reflection) power.
In one embodiment, Fig. 2 is referred to, in 310 He of the first infrared receiver of 300 side of smartwatch installation
Second infrared receiver 320, for receiving the infrared signal reflected by finger.Positioned at the red of 300 different location of smartwatch
Outer receiving unit receives the infrared signal reflected by finger from different zones.When finger appears in A2 regions, first is red
Outer receiving unit 310 receives the first infrared signal reflected by finger；When finger appears in A3 regions, the second infrared receiver list
Member 320 receives the second infrared signal reflected by finger；When finger appears in the overlapping region in A2 regions and A3 regions, first
310 and second infrared receiver 320 of infrared receiver receives the infrared signal reflected by finger.
First infrared receiver 310 is variation in the signal strength that A2 regions receive, in the two sides in A2 regions
Respectively there are an intermediate zone (not shown)s for edge.When finger appears in the intermediate zone, the first infrared receiver 310 detects
To infrared signal appear in the center band in A2 regions relative to finger when the infrared signal that detects it is weaker.
When finger is streaked from A2 regions, finger is cut from the intermediate zone of side, slides into center band, is slided from center band
To the intermediate zone of opposite side, the luminous intensity that the first infrared receiver 310 detects changes with the slip of finger.Work as finger
When being slided in the intermediate zone of side, detection luminous intensity is begun to ramp up (rising edge).When sliding into center band, detection luminous intensity reaches
To peak value saturation value (amplitude).With the slip of finger, enter the intermediate zone of opposite side, detection luminous intensity begin to decline (under
Edge drops).So far, the first change in signal strength curve of the first infrared receiver 310 is obtained.And first change in signal strength
Curve is presented with impulse form.
Likewise, in the both sides of the edge in A3 regions, respectively there are an intermediate zone (not shown)s.When finger is from A3 regions
When streaking, the second signal intensity variation curve of the second infrared receiver 320 is obtained.And second signal intensity variation curve
It is presented with impulse form.
In short, during sending out the deliberate action for representing operational order near smartwatch 300 in finger, first is red
Outer 310 and second infrared receiver 320 of receiving unit receives infrared signal, and signal strength changes, obtains with pulse form
The the first change in signal strength curve and second signal intensity variation curve that formula is presented.
S300：According to the infrared signal received, parsing obtains the operational order.
Finger sends out the deliberate action for representing operational order, 310 He of the first infrared receiver near smartwatch 300
Second infrared receiver 320 receives infrared signal, obtains the first change in signal strength curve for presenting with impulse form and the
Binary signal intensity variation curve.The infrared signal that infrared receiver receives shows intensity variation song with impulse waveform
Line.
Pulse signal is with amplitude, rise time, fall time, duty ratio isoparametric formulations.Amplitude is A2, A3 region
The saturation value that center band detection luminous intensity reaches.Rise time, which is finger, to be entered detection luminous intensity from side intermediate zone and rises
It lasts.With the slip of finger, the intermediate zone of opposite side is entered, detection luminous intensity is begun to decline, and fall time is finger
Enter lasting for the intermediate zone detection luminous intensity decline of opposite side.
When finger has sent out some deliberate action near smartwatch 300, such as finger slide downward, finger is from A2 areas
Domain enters A3 regions, first exports the first change in signal strength curve, then export second signal intensity variation curve, so, first
There are a time differences between change in signal strength curve and second signal intensity variation curve.
In short, by duty ratio according to first, second change in signal strength curve, rise time and fall time and
Time difference between two curves parses the direction of motion, the movement velocity of the finger, obtains operational order.
S400：According to the operational order, the application program of smartwatch is operated.
After selected operational order, control unit works according to these operational orders control smartwatch 300.User operates
Instruction makes oneself understood, and gives control unit execution, operates the application program of smartwatch.The application journey of smartwatch
Sequence can be music player, photo player, browser, weather forecast, dial plate show, alarm clock etc..User sends out default dynamic
Make, such as the gesture motions such as two fingers are mediated, two fingers are opened, singly refer to upward sliding, singly refer to upward sliding and clicked；Smartwatch
300 perform corresponding operation, such as show main interface, return, page zoom-in and zoom-out, roll screen, amplification picture, reduce picture, beat
Open music player software, it is upper one first, next etc..
Further, Fig. 3 is referred to, in a preferred embodiment, a kind of control method based on infrared gesture identification,
It is further comprising the steps of for controlling smartwatch：
S110：Define the set of deliberate action；
User can be with the set of self-defined deliberate action, and customized deliberate action is stored in and is locally used as standard hand
Gesture acts.
Whether smartwatch 300 can be triggered in the setting options for detecting the self-defined deliberate action in real time from the background, such as
After the fruit setting options are triggered, smartwatch 300 can export the prompting message of a deliberate action with user oriented at this time, should
Preset prompting message can be used for prompting User Defined setting gesture motion.
The setting options can be that the function choosing-item of one " self-defined gesture motion ", Yong Huke are provided in interface is set
To trigger the function choosing-item by clicking the function choosing-item, after the function choosing-item is triggered, smartwatch 300 can to
Family exports the prompting message of one " asking self-defined gesture motion ".
After smartwatch 300 exports the prompting message, for user under the prompting of the prompting message, user is wearing intelligence
It can be with customized gesture motion under the premise of wrist-watch 300.
User in the case of wearing smartwatch 300 during the customized gesture motion is performed, smartwatch
Infrared emission unit 330 built in 300 emits infrared signal, and user sends out gesture motion in A1, A2 region, and finger is to infrared letter
It number is reflected, the infrared signal that smartwatch 300 is reflected using built-in infrared receiver detection parses what is received
Duty ratio, rise time, fall time and the first intensity curves and second signal intensity curve of infrared pulse signal
Time difference etc., obtain gesture data corresponding with the default gesture motion that user is sent out.Using the gesture data as data
Matched sample is in the local preservation of smartwatch 300.
More preferably, user can repeated acquisition gesture data, such as three times for several times, to ensure that smartwatch 300 obtains one
The Data Matching sample of fixed number amount.Resolution of the smartwatch 300 to switching gesture is improved in this way.Corresponding to finally obtaining
Gesture data be stored in the local of smartwatch 300, form deliberate action set.
S120：Work out the operational order set of the application program；
Smartwatch 300 can be in the setting options for locally providing an application programming operational order set.Intelligence
Wrist-watch 300 can detect whether the setting options are triggered in real time from the background, if after the setting options are triggered, it is intelligent at this time
Wrist-watch 300 can export a preset setting interface with user oriented, can be provided in the setting interface multiple for user
The gesture motion option of selection.Wherein, the gesture motion provided in the setting interface is that user is stored in smartwatch 300 locally
Deliberate action set.
For example, by taking music player as an example, which is that " singer is cut in selection in music player software setting interface
The function choosing-item of gesture ", user can trigger the function choosing-item by clicking the function choosing-item, when the function choosing-item is triggered
Afterwards, smartwatch 300 shows a setting interface, and provides multiple gestures selected for user in the setting interface and move
Make.
After smartwatch 300 exports the setting interface, user can select corresponding music switching at the setting interface
Gesture.After the completion of selection, smartwatch 300 can obtain the gesture that user selects at the setting interface on backstage, and will use
The gesture that family selects is preserved as the operational order set of the application program.
S130：Establish the mapping relations of the deliberate action set and the operational order set.
By User Defined deliberate action set, then user has worked out operation at the setting interface of some application program
Instruction set establishes the mapping relations for the adopted deliberate action set and operational order set made by oneself, so that user makes default move
When making, smartwatch 300 can perform corresponding operational order.For example, when user is near the arm for wearing smartwatch 300
When A1, A2 region send out two fingers kneading action, the page of 300 screen display of smartwatch is amplified.
Following table lists the part correspondence of deliberate action and operational order：
| Two fingers are mediated | Amplification |
| Two fingers are opened | It reduces |
| Singly refer to upward sliding | Upward roll screen |
| It is single to be directed toward lower slider | Downward roll screen |
Further, Fig. 4, S130 are referred to：Establish the mapping of the deliberate action set and the operational order set
The step of relationship, specifically includes following steps：
S131：Select an operational order option in the operational order set；
S132：Typing corresponds to the deliberate action of the operational order option；
S133：Preserve the mapping relations of the deliberate action and the operational order option.
By the deliberate action of typing respective operations instruction options, the gesture data of deliberate action is obtained, by gesture data
The local of smartwatch 300 is stored in, while establishes the mapping relations of deliberate action and operational order option and is stored in this
Ground.
After selecting an operational order option in the setting interface of application program in one of the embodiments, user
Deliberate action corresponding with operational order is sent out near the arm for wearing smartwatch 300, it is infrared built in smartwatch 300
Transmitter unit 330 emits infrared signal, and user sends out gesture motion in A1, A2 region, and finger reflects infrared signal, intelligence
The infrared signal that energy wrist-watch 300 is reflected using built-in infrared receiver detection, parses the infrared pulse signal received
Time difference of duty ratio, rise time, fall time and the first intensity curves and second signal intensity curve etc., obtain
Go out gesture data corresponding with the default gesture motion that user is sent out.Using the gesture data as Data Matching sample in intelligence
Wrist-watch 300 is local to be preserved.
Fig. 5 and Fig. 6 are referred to, by taking " roll screen " instruction as an example, when finger slides up and down action described in typing, described first
Change in signal strength curve is equal with the waveform duty cycle of the second signal intensity variation curve and there are phase difference, according to institute
State the first duty ratio of first, second change in signal strength curve and the time difference, obtain the finger slide up and down it is dynamic
Make the corresponding roll screen instruction.
Specifically, Fig. 5 is referred to, when finger upward sliding, only the second infrared receiver 320 detects infrared letter
Number, only export second signal intensity variation curve；When finger enters the overlapping region in A2, A3 region, the second infrared receiver
310 can continue to detect infrared signal, and the first infrared receiver 310 starts to detect infrared signal, and overlapping region
Also it is the transition region of A2 regions side.From the time, the second infrared receiver is earlier than the first infrared receiver
First detect infrared signal, it can be determined that finger is slided from A3 regions towards A2 regions, and then judges moving upwards for finger.Separately
Outside, with the whole process of finger upward sliding, first, second change in signal strength curve of impulse form is obtained, according to the
The time of one duty ratio and pulse persistance can extrapolate finger motion speed.The direction of motion and movement velocity according to finger
Two indices data simulate the scrolling operations of user.
Fig. 6 is referred to, when finger slide downward, only the first infrared receiver 310 detects infrared signal, only defeated
Go out the first change in signal strength curve；When finger enters the overlapping region in A2, A3 region, the first infrared receiver 310 can be with
Continue to detect infrared signal, the second infrared receiver 320 starts to detect infrared signal, and overlapping region Yi Shi A3 areas
The transition region of domain side.From the time, the first infrared receiver is first detected earlier than the second infrared receiver
Infrared signal, it can be determined that finger is slided from A2 regions towards A3 regions, and then judges moving downward for finger.In addition, with
The whole process of finger slide downward obtains first, second change in signal strength curve of impulse form, according to the first duty ratio
And the time of pulse persistance can extrapolate finger motion speed.According to the direction of motion of finger and movement velocity two indices
Data simulate the scrolling operations of user.
In short, roll screen instruction establishes mapping relations with the up and down operation of finger.According to first, second infrared receiver list
Member detects the sequencing of infrared signal, judges the telemechanical direction of finger；According to first, second change in signal strength curve
First duty ratio and pulse duration can extrapolate finger motion speed.The direction of motion and movement velocity according to finger
Two gesture datas, simulate scrolling operations.
Fig. 7 and Fig. 8 are referred to, by taking " scaling " instruction as an example, two fingers are by mediating to during opening, acquisition first, the
Binary signal intensity variation curve.
Specifically, Fig. 7 is referred to, when two fingers mediate the A2 regions and second of the first infrared receiver 310 of incision simultaneously
The A3 regions of infrared receiver 320, the two fingers of kneading are during opening, first, second change in signal strength curve base
This coincidence, the second duty ratio are equal.Two fingers respectively enter the center band in A2 regions and A3 regions in a relatively short period of time, and first is red
Outer 310 and second infrared receiver 320 of receiving unit is detected simultaneously by luminous intensity, first, second change in signal strength curve
Increase to peak value saturation value, and the rising edge steeper of two bars curves simultaneously.In each free center band of two fingers to mistake
During crossing band slip, the first infrared receiver 310 and the second infrared receiver 320 detect that luminous intensity slowly becomes
Small, the failing edge of two pulse signal curves is slower.Rise time is shorter than fall time, can determine whether by this comparison
Go out two fingers to move from center band to intermediate zone, realize interface amplifieroperation function.
Fig. 8 is referred to, when two fingers open the A2 regions of the first infrared receiver 310 of incision and the second infrared receiver simultaneously
The A3 regions of unit 320, during kneading, first, second change in signal strength curve essentially coincides the two fingers of opening, the
Two duty ratios are equal.First infrared receiver 310 detects luminous intensity, the second infrared receiver 320 in A2 region transfers band
Luminous intensity is detected in A1 region transfers band, the rising edge of two bars curves is slower, and first, second change in signal strength is bent
Line increases to peak value saturation value simultaneously.During the excessive band of each freedom of two fingers is slided to center band, the first infrared receiver list
310 and second infrared receiver 320 of member detects that luminous intensity quickly becomes smaller, and the failing edge of two pulse signal curves is steeper
It is high and steep.So the rise time is longer than fall time, it can judge that two fingers are moved from intermediate zone to center band by this comparison,
Realize interface reduction operation function.
In short, mapping relations are established in two fingers flaring operation, two fingers kneading operation and zoom operations instruction.Utilize first,
Second duty ratio of binary signal intensity variation curve is equal, significantly different existing for rising edge and failing edge, you can judges double
The direction of motion of finger realizes amplification and reduction capability.
Fig. 9, Figure 10 and Figure 11 are referred to, by taking " click " as an example, in the A2 regions of 300 attachment of smartwatch, A3 regions, hand
It is quickly bounced again as " click " operation after referring to Rapid contact.Finger clicks different regions, obtains different wave figure.
Specifically, Fig. 9 is referred to, finger clicks the center band in the A2 regions of the first infrared receiver 310, and first is infrared
Receiving unit 310 receives the pulse that the duration is very short and edge is precipitous, obtains the first change in signal strength of impulse form
Curve, the second infrared receiver 320 are not received by infrared signal.The third of first change in signal strength curve waveform pulse
Duty is smaller, and rising edge is precipitous with failing edge, moreover, rise time and fall time are equal.
Figure 10 is referred to, finger clicks A2 regions and the second infrared receiver 320 of the first infrared receiver 310
The overlapping region in A3 regions, the first infrared receiver 310 receive the pulse that the duration is very short and edge is precipitous, obtain arteries and veins
Rush the first change in signal strength curve of form, the second infrared receiver 320 receives that the duration is very short and edge is precipitous
Pulse, obtain the second signal intensity variation curve of impulse form, first, second change in signal strength curve essentially coincides.
The third duty of the two pulse signals is smaller, and rising edge is precipitous with failing edge, moreover, rise time and fall time phase
Deng.
Figure 11 is referred to, finger clicks the center band in the A3 regions of the first infrared receiver 320, the second infrared receiver list
Member 320 receives the pulse that the duration is very short and edge is precipitous, obtains the second signal intensity variation curve of impulse form, the
One infrared receiver 310 is not received by infrared signal.The third duty ratio of second signal intensity variation curve waveform pulse
Smaller, rising edge is precipitous with failing edge, moreover, rise time and fall time are equal.
In short, finger clicks different regions, different pulse signals is obtained, according to first, second change in signal strength
When rise time and fall time, the corresponding clicking operation of acquisition click action instruct the duty of curve.Due to click action
Duration Ratio finger slide up and down, two fingers open, two fingers mediate it is short, so, third duty ratio be less than the second duty ratio.
Control method disclosed by the invention based on infrared gesture identification does not need to increase input hardware, smartwatch
Larger change need not occur for shape, directly complete gesture identification using smartwatch.With relatively low cost and power consumption, intelligence is extended
The input mode of energy wrist-watch improves the usage experience of user.And usage scenario is not limited, gesture motion is simple, and identification is calculated
Method is simple, efficient.
Based on same thinking, the embodiment of the present invention also provides：
Figure 12 is referred to, invention additionally discloses a kind of smartwatch based on infrared gesture identification, including：Infrared emission list
Member 330, positioned at the side of smartwatch 300, for nearby emitting infrared signal to the arm for wearing smartwatch 300, so that
When finger sends out the deliberate action for representing operational order near smartwatch 300, infrared signal is reflected.Infrared receiver
Unit 360 is located at the same side of smartwatch 300 with infrared emission unit 300, receives the infrared signal reflected by finger.Place
Unit 400 is managed, for according to the infrared signal received, parsing to obtain operational order；Control unit 500, for according to operation
Instruction operates the application program of smartwatch 300.350 are worn, for smartwatch 300 to be affixed to arm.
Further, infrared emission unit 330 is n, n >=1；Infrared receiver is n, n >=2；Infrared emission list
Member 330 emits infrared signal along the arm extending direction for wearing smartwatch 300；The beam thickness of infrared emission unit 330
It is adjustable, so that the beam plane of infrared signal and the skin surface less parallel near smartwatch 300；Infrared emission unit
330 transmission power is adjustable, so that the skin area near the emitting area covering smartwatch 300 of infrared emission unit.It is red
Outer transmitter unit 330 and infrared receiver 360 are worked with impulse form, to save energy.
Specifically, Figure 13 is referred to, there are one infrared emission unit 330, the first infrared receivers for the tool of smartwatch 300
310 and second infrared unit 320 be separately positioned on the both sides of infrared emission unit 330.
The above-mentioned smartwatch based on infrared gesture identification does not need to increase input hardware, smartwatch to smartwatch
Shape larger change need not occur, directly using smartwatch complete gesture identification.With relatively low cost and power consumption, extend
The input mode of smartwatch improves the usage experience of user.And usage scenario is not limited, gesture motion is simple, identification
Algorithm is simple, efficient.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of control method based on infrared gesture identification, for controlling smartwatch, which is characterized in that including：
Nearby emit infrared signal to the arm for wearing the smartwatch, so that finger sends out table near the smartwatch
When showing the deliberate action of operational order, the infrared signal is reflected；
Receive the infrared signal reflected by the finger；
According to the infrared signal received, parsing obtains the operational order；
According to the operational order, the application program of the smartwatch is operated.
2. control method according to claim 1, which is characterized in that described to receive the infrared signal reflected by finger, tool
Body includes：
Receive the first infrared signal reflected by the finger；
During sending out the deliberate action for representing operational order near the smartwatch in the finger, described first is red
The signal strength of external signal changes, and obtains the first change in signal strength curve；
Receive the second infrared signal reflected by the finger；
During sending out the deliberate action for representing operational order near the smartwatch in the finger, described second is red
The signal strength of external signal changes, and obtains second signal intensity variation curve；
Wherein, the first change in signal strength curve and the second signal intensity variation curve are presented with impulse form.
3. control method according to claim 2, which is characterized in that the infrared signal that the basis receives, solution
Analysis obtains the operational order, specifically includes：
According to the first change in signal strength curve, the movable information of the finger is parsed, the corresponding operation is obtained and refers to
It enables；
According to the second signal intensity variation curve, the movable information of the finger is parsed, the corresponding operation is obtained and refers to
It enables；
According to the first change in signal strength curve and the second signal intensity variation curve, the movement of the finger is parsed
Information obtains the corresponding operational order.
4. control method according to claim 1, which is characterized in that further include：
Define the set of deliberate action；
Work out the operational order set of the application program；
Establish the mapping relations of the deliberate action set and the operational order set.
5. control method according to claim 4, which is characterized in that described to establish the deliberate action set and the behaviour
The step of making the mapping relations of instruction set, including：
Select an operational order option in the operational order set；
Typing corresponds to the deliberate action of the operational order option；
Preserve the mapping relations of the deliberate action and the operational order option.
6. control method according to claim 5, which is characterized in that
An operational order option in the selection operational order set, specifically includes：
Select roll screen instruction options；
The typing corresponds to the deliberate action of the operational order option, specifically includes：
Typing finger slides up and down action；
It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：
It preserves the finger and slides up and down action and the mapping relations of the roll screen instruction options；
When finger slides up and down action described in typing, the first change in signal strength curve becomes with the second signal intensity
The waveform duty cycle of change curve is equal and there are phase differences, is accounted for according to the first of the first, second change in signal strength curve
It sky ratio and the time difference, obtains the finger and slides up and down the corresponding roll screen of action and instruct.
7. control method according to claim 5, which is characterized in that
An operational order option in the selection operational order set, specifically includes：
Selection scaling instruction options；
The typing corresponds to the deliberate action of the operational order option, specifically includes：
Typing two fingers mediate expansion action；
It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：
Preserve the mapping relations that the two fingers mediate expansion action and the scaling instruction options；
When two fingers described in typing mediate expansion action, the first change in signal strength curve becomes with the second signal intensity
The waveform duty cycle of change curve is equal and without the time difference, and second according to the first, second change in signal strength curve accounts for
Empty when described pulse signal rise time and fall time obtain the corresponding scaling of the two fingers kneading expansion action and refer to
It enables.
8. control method according to claim 5, which is characterized in that
An operational order option in the selection operational order set, specifically includes：
Option of operation is clicked in selection；
The typing corresponds to the deliberate action of the operational order option, specifically includes：
Typing click action；
It is described to preserve the deliberate action and the mapping relations of the operational order option, it specifically includes：
Preserve the mapping relations of the click action and the click commands option；
When the click action of typing different location, the first change in signal strength curve and the second signal intensity
The waveform duty cycle of change curve is different, and the third duty according to the first, second change in signal strength curve is when described
Pulse signal rise time and fall time obtain the corresponding click commands of the click action.
9. a kind of smartwatch based on infrared gesture identification, which is characterized in that including：
Infrared emission unit, positioned at the side of the smartwatch, for nearby emitting to the arm for wearing the smartwatch
Infrared signal so that finger sent out near the smartwatch represent operational order deliberate action when, to the infrared letter
It number is reflected；
Infrared receiver is located at the same side of the smartwatch with the infrared emission unit, receives what is reflected by finger
The infrared signal；
Processing unit, for according to the infrared signal received, parsing to obtain the operational order；
Control unit, for according to the operational order, operating the application program of the smartwatch.
10. smartwatch according to claim 9, which is characterized in that
The infrared emission unit is n, n >=1；
The infrared receiver is n, n >=2；
The infrared emission unit emits infrared signal along the arm extending direction for wearing the smartwatch；
The beam thickness of the infrared emission unit is adjustable, so that the beam plane of the infrared signal and the smartwatch are attached
Near skin surface less parallel；
The transmission power of the infrared emission unit is adjustable, so that the emitting area of the infrared emission unit covers the intelligence
Skin area near wrist-watch；
The infrared emission unit and the infrared receiver are worked with impulse form.
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