CN106020486A - Control method for infrared gesture recognition device, infrared gesture recognition device and equipment - Google Patents
Control method for infrared gesture recognition device, infrared gesture recognition device and equipment Download PDFInfo
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- CN106020486A CN106020486A CN201610383264.9A CN201610383264A CN106020486A CN 106020486 A CN106020486 A CN 106020486A CN 201610383264 A CN201610383264 A CN 201610383264A CN 106020486 A CN106020486 A CN 106020486A
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- strength values
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/20—Movements or behaviour, e.g. gesture recognition
- G06V40/28—Recognition of hand or arm movements, e.g. recognition of deaf sign language
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Abstract
The invention provides a control method for an infrared gesture recognition device, the infrared gesture recognition device and equipment. The control method for the infrared gesture recognition device comprises the steps that an average value of multiple signal intensity values in an intensity value curve of infrared reflection signals within a period of time is calculated, and the duty ratio of infrared transmitting tubes of the infrared gesture recognition device is adjusted according to the average value. By means of the technical scheme, the duty ratio of the infrared transmitting tubes is adjusted according to the distance between a user and the infrared gesture recognition device, the power consumption of the infrared gesture recognition device can be reduced, the accuracy rate of gesture recognition of the infrared gesture recognition device can be increased, and then the user experience is improved.
Description
Technical field
The present invention relates to cooking apparatus technical field, fill in particular to a kind of infrared gesture identification
The control method put, a kind of infrared gesture identifying device and a kind of equipment.
Background technology
In the related, by two or three infrared transmitting tubes, photodiode and gesture induction
The infrared gesture identifying device of chip structure low cost.First infrared transmitting tube passes through modulation to emission
Infrared light, be then passed through external object (such as the hands of user) and reflect to photodiode, light
The signal that electric diode is converted into the signal of telecommunication and an other road compensation pipe the optical signal received compares
Passing to gesture induction chip after relatively, gesture induction chip is further according to the variation tendency of signal and change
Amount carries out the identification of gesture motion.
But, if the infrared gesture identifying device of user distance is nearer, if keeping infrared gesture identification
Rating of set is constant, then can increase the power consumption of infrared gesture identifying device.And user from infrared hands
When gesture identification device is nearer, the intensity level of the infrared reflectance signal received can be very big, and user does gesture
During action, the variable quantity of infrared reflectance signal is not enough to identify the gesture motion of user, affects user
Experience property.
Therefore, how to reduce the power consumption of infrared gesture identifying device, and identify accurately and efficiently
The gesture motion of user becomes technical problem urgently to be resolved hurrily.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art or correlation technique.
To this end, it is an object of the present invention to propose the controlling party of a kind of infrared gesture identifying device
Method.
Further object is that and propose a kind of infrared gesture identifying device.
A further object of the present invention is to propose a kind of equipment.
For realizing at least one purpose above-mentioned, embodiment according to the first aspect of the invention, it is proposed that
A kind of control method of infrared gesture identifying device, including: calculate the infrared external reflection letter in a period of time
Number intensity level curve in the meansigma methods of multiple signal strength values；According to the regulation of described meansigma methods
The dutycycle of the infrared transmitting tube of infrared gesture identifying device.
The control method of the most infrared gesture identifying device, due to infrared external reflection
The meansigma methods of the multiple signal strength values in the intensity level curve of signal reflects this infrared hands of user distance
The distance of gesture identification device, therefore, when this infrared gesture identifying device of user distance is nearer, reduces
The dutycycle of infrared transmitting tube, to reduce the driving electric current of infrared transmitting tube, this reduces infrared
The power of transmitting tube, thus reduce the ultrared intensity that infrared transmitting tube is launched, now user
When carrying out gesture motion again, the amplitude of variation of the intensity level of the infrared reflectance signal received is the brightest
Aobvious, such that it is able to identify the gesture motion that user is carried out exactly.And reducing infrared transmitting tube
Power time just reduce the power consumption of infrared gesture identifying device.It addition, at this infrared hands of user distance
Gesture identification device farther out time, increase infrared transmitting tube dutycycle, to increase the driving of infrared transmitting tube
Electric current, which increases the power of infrared transmitting tube, thus improves what infrared transmitting tube was launched
Ultrared intensity, when now user carries out gesture motion again, it is to avoid because receive infrared instead
The intensity level penetrating signal is more weak and cannot recognize that the gesture motion that user makes, so that user distance
Infrared gesture identifying device farther out time, still can identify the gesture motion that user is carried out.
The control method of infrared gesture identifying device according to the abovementioned embodiments of the present invention, it is also possible to tool
There is a techniques below feature:
According to one embodiment of present invention, also include: judge in the plurality of signal strength values is every
Whether individual signal strength values is less than the first preset value with the difference of described meansigma methods；If the plurality of signal
Intensity level has K the signal strength values difference with described meansigma methods less than described first preset value, then
Regulate the dutycycle of described infrared transmitting tube according to described meansigma methods, wherein, K is the most whole more than 1
Number.
The control method of the most infrared gesture identifying device, if at multiple signals
Have K the signal strength values difference with its meansigma methods in intensity level less than the first preset value, then explanation is strong
Angle value curve is more stable, and explanation user compares steady with the distance of infrared gesture identifying device further
Fixed, then regulate the dutycycle of infrared transmitting tube, ensure that the accuracy of gesture identification further.No
Then, illustrating that the fluctuation ratio of intensity level curve is relatively big, explanation user fills with infrared gesture identification further
The distance put changes, and is not adjusted the dutycycle of infrared transmitting tube, to avoid using
Family but increases the dutycycle of infrared transmitting tube when infrared gesture identifying device, and avoids user
Away from but reducing the dutycycle of infrared transmitting tube during infrared gesture identifying device, thus ensure that gesture
The reliability identified.
According to one embodiment of present invention, described K signal strength values is in described intensity level curve
It it is continuous print.
The control method of the most infrared gesture identifying device, K signal intensity
Value is continuous print in intensity level curve, ensure that reliability and the standard carrying out gesture identification further
Really property.
According to one embodiment of present invention, described according to described meansigma methods regulation described infrared gesture knowledge
The step of the dutycycle of the infrared transmitting tube of other device, specifically includes: if described meansigma methods is more than second
Preset value, then reduce the dutycycle of described infrared transmitting tube；If described meansigma methods is preset less than the 3rd
Value, then increase the dutycycle of described infrared transmitting tube, and wherein, described second preset value is more than described the
Three preset values.
The control method of the most infrared gesture identifying device, if meansigma methods is more than
Second preset value, illustrates that the intensity level of infrared reflectance signal received is bigger, and user distance is infrared
Gesture identifying device is closer, then reduce the dutycycle of infrared transmitting tube, sends out reducing infrared transmitting tube
The ultrared intensity gone out；If meansigma methods is less than the 3rd preset value, the infrared external reflection letter received is described
Number intensity level smaller, the infrared gesture identifying device of user distance is distant, then increase infrared emission
The dutycycle of pipe, to increase the ultrared intensity that infrared transmitting tube sends, thus improves infrared hands
Reliability during gesture identification device identification gesture motion.
According to one embodiment of present invention, also include: on judging whether described intensity level curve has
Rise curved section；If described intensity level curve having described ascending curve section, then according to described ascending curve
Signal strength values in Duan determines the plurality of signal strength values；If described intensity level curve does not has institute
State ascending curve section, then determine that the plurality of signal is strong according to the signal strength values of described intensity level curve
Angle value.
The control method of the most infrared gesture identifying device, if intensity level curve
In there is no ascending curve section, take in this intensity level curve all of signal strength values as multiple signals
Intensity level, if there being ascending curve section, takes the top n signal strength values in ascending curve section as multiple
Signal strength values, thus ensure that multiple signal strength values of acquirement can relatively accurately reflect use
Family is apart from the distance of infrared gesture identifying device.
Embodiment according to the second aspect of the invention, it is proposed that a kind of infrared gesture identifying device, bag
Include: computing unit, many for calculating in the intensity level curve of the infrared reflectance signal in a period of time
The meansigma methods of individual signal strength values；Regulation unit, for regulating described infrared hands according to described meansigma methods
The dutycycle of the infrared transmitting tube of gesture identification device.
The most infrared gesture identifying device, due to the intensity of infrared reflectance signal
The meansigma methods of the multiple signal strength values in value curve reflects this infrared gesture identifying device of user distance
Distance, therefore, when this infrared gesture identifying device of user distance is nearer, reduce infrared transmitting tube
Dutycycle, to reduce the driving electric current of infrared transmitting tube, this reduces the merit of infrared transmitting tube
Rate, thus reduce the ultrared intensity that infrared transmitting tube is launched, now user carries out gesture again
During action, the amplitude of variation of the intensity level of the infrared reflectance signal received is the most obvious, thus can
To identify the gesture motion that user is carried out exactly.And when reducing the power of infrared transmitting tube just
Reduce the power consumption of infrared gesture identifying device.It addition, at this infrared gesture identifying device of user distance
Time farther out, increase the dutycycle of infrared transmitting tube, to increase the driving electric current of infrared transmitting tube, so
Just increase the power of infrared transmitting tube, thus improve that infrared transmitting tube launches ultrared by force
Degree, time now user carries out gesture motion again, it is to avoid because the infrared reflectance signal received is strong
Angle value is more weak and cannot recognize that the gesture motion that user makes, so that the infrared gesture of user distance is known
Other device farther out time, still can identify the gesture motion that user is carried out.
According to one embodiment of present invention, also include: the first judging unit, be used for judging described many
Each signal strength values in individual signal strength values is the most default less than first with the difference of described meansigma methods
Value；If described first judging unit judge the plurality of signal strength values has K signal strength values and
The difference of described meansigma methods is less than described first preset value, and the most described regulation unit is according to described meansigma methods
Regulating the dutycycle of described infrared transmitting tube, wherein, K is the positive integer more than 1.
The most infrared gesture identifying device, if having in multiple signal strength values
The difference of K signal strength values and its meansigma methods less than the first preset value, then illustrates intensity level curve ratio
More stable, explanation user is more stable with the distance of infrared gesture identifying device further, then regulate
The dutycycle of infrared transmitting tube, ensure that the accuracy of gesture identification further.Otherwise, illustrate by force
The fluctuation ratio of angle value curve is relatively big, and explanation user with the distance of infrared gesture identifying device is further
Change, the dutycycle of infrared transmitting tube is not adjusted, to avoid user near infrared
But increase the dutycycle of infrared transmitting tube during gesture identifying device, and avoid user away from infrared hands
But reduce the dutycycle of infrared transmitting tube during gesture identification device, thus ensure that the reliable of gesture identification
Property.
According to one embodiment of present invention, described K signal strength values is in described intensity level curve
It it is continuous print.
The most infrared gesture identifying device, K signal strength values is at intensity level
Curve is continuous print, ensure that reliability and the accuracy carrying out gesture identification further.
According to one embodiment of present invention, described regulation unit includes: the first regulon unit, uses
If in described meansigma methods more than the second preset value, then reducing the dutycycle of described infrared transmitting tube；Second
Regulon unit, if for described meansigma methods less than the 3rd preset value, then increasing described infrared transmitting tube
Dutycycle, wherein, described second preset value be more than described 3rd preset value.
The most infrared gesture identifying device, if meansigma methods is preset more than second
Value, illustrates that the intensity level of infrared reflectance signal received is bigger, the infrared gesture identification of user distance
Device is closer, then reduce the dutycycle of infrared transmitting tube, infrared with reduce that infrared transmitting tube sends
The intensity of line；If meansigma methods is less than the 3rd preset value, the intensity of the infrared reflectance signal received is described
Being worth smaller, the infrared gesture identifying device of user distance is distant, then increase the duty of infrared transmitting tube
Ratio, to increase the ultrared intensity that infrared transmitting tube sends, thus improves infrared gesture identification dress
Put reliability when identifying gesture motion.
According to one embodiment of present invention, also include: the second judging unit, be used for judging described by force
Whether angle value curve has ascending curve section；First determines unit, if in described intensity level curve
There is described ascending curve section, then determine the plurality of according to the signal strength values in described ascending curve section
Signal strength values；Second determines unit, if not having described ascending curve in described intensity level curve
Section, then determine the plurality of signal strength values according to the signal strength values of described intensity level curve.
The most infrared gesture identifying device, if not rising in intensity level curve
Curved section, takes in this intensity level curve all of signal strength values as multiple signal strength values, if
There is ascending curve section, take the top n signal strength values in ascending curve section as multiple signal intensitys
Value, thus ensure that multiple signal strength values of acquirement can relatively accurately reflect that user distance is red
The distance of outer gesture identifying device.
Embodiment according to the third aspect of the invention we, it is proposed that a kind of equipment, including above-mentioned technical side
Infrared gesture identifying device according to any one of case, therefore, this equipment has and technique scheme
According to any one of the identical technique effect of infrared gesture identifying device, do not repeat them here.
The additional aspect of the present invention and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Embodiment is retouched by the above-mentioned and/or additional aspect of the present invention and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Fig. 1 shows the control method of infrared gesture identifying device according to an embodiment of the invention
Schematic flow diagram；
Fig. 2 shows the intensity level curve of infrared reflectance signal according to an embodiment of the invention
Schematic diagram；
Fig. 3 shows the controlling party of infrared gesture identifying device according to another embodiment of the invention
The schematic flow diagram of method；
Fig. 4 shows the schematic block diagram of the most infrared gesture identifying device；
Fig. 5 shows the schematic block diagram of equipment according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 1 shows the control method of infrared gesture identifying device according to an embodiment of the invention
Schematic flow diagram.
As it is shown in figure 1, the controlling party of infrared gesture identifying device according to an embodiment of the invention
Method, including:
Step 102, calculates the multiple letters in the intensity level curve of the infrared reflectance signal in a period of time
The meansigma methods of number intensity level.
Further, the most also include: judge whether intensity level curve has ascending curve
Section；If intensity level curve has ascending curve section, then true according to the signal strength values in ascending curve section
Fixed multiple signal strength values, such as, take front N (such as, N=30) the individual signal in ascending curve section
Intensity level is as multiple signal strength values；If intensity level curve does not has ascending curve section, then according to strong
The signal strength values of angle value curve determines multiple signal strength values, such as, takes in this intensity level curve
All of signal strength values is as multiple signal strength values.Thus ensure that multiple signal intensitys of acquirement
Value can relatively accurately reflect the distance of the infrared gesture identifying device of user distance.
For ascending curve section, refer to the curve that a section in intensity level curve rises, and in this section
Maximum signal value in the curve risen exceedes certain value with the difference of minimum signal strength value.Example
As, there is one section of curve risen, the maximum signal value in the curve that this section rises and minimum signal
Intensity level is respectively 150 and 100, and the difference of maximum signal value and minimum signal strength value is not
More than 150, then judge that the curve that this section rises not is ascending curve section.The most such as, have on one section
The curve risen, maximum signal value and minimum signal strength value in the curve that this section rises are respectively
350 and 100, the difference of maximum signal value and minimum signal strength value has exceeded 150, then sentence
The curve that this section fixed rises is ascending curve section.
As in figure 2 it is shown, longitudinal axis Y represents the intensity level of the infrared reflectance signal received, transverse axis X
Represent time when receiving infrared reflectance signal intensity level.Curve in Fig. 2 is infrared external reflection letter
Number intensity level curve, the curved section between A point and B is ascending curve section.
Further, after step 102, also include: judge in multiple signal strength values is each
Whether signal strength values is less than the first preset value with the difference of meansigma methods；If multiple signal strength values have
The difference of K (such as, K=20) signal strength values and meansigma methods less than the first preset value, is then said
Bright intensity level curve is more stable, and the distance ratio of user and infrared gesture identifying device is described further
More stable, then perform step 104, i.e. regulate the dutycycle of infrared transmitting tube, wherein, K is for being more than
The positive integer of 1.If multiple signal strength values not having K signal strength values little with the difference of meansigma methods
In the first preset value, illustrating that the fluctuation ratio of intensity level curve is relatively big, explanation user is with infrared further
The distance of gesture identifying device changes, and does not adjusts the dutycycle of infrared transmitting tube
Joint, with avoid user near infrared gesture identifying device time but increase the dutycycle of infrared transmitting tube,
And avoid user away from but reducing the dutycycle of infrared transmitting tube during infrared gesture identifying device, from
And ensure that the reliability of gesture identification.
Further, K signal strength values is continuous print in intensity level curve, can be further
Ensure that reliability and the accuracy carrying out gesture identification.
Step 104, regulates the duty of the infrared transmitting tube of infrared gesture identifying device according to meansigma methods
Ratio.
Further, step 104 specifically includes: if meansigma methods is more than the second preset value, illustrates to receive
The intensity level of the infrared reflectance signal arrived is bigger, and the infrared gesture identifying device of user distance is closer,
Then reduce the dutycycle of infrared transmitting tube, to reduce the ultrared intensity that infrared transmitting tube sends；If
Meansigma methods is less than the 3rd preset value, illustrate that the intensity level of infrared reflectance signal received is smaller, use
Family is distant apart from infrared gesture identifying device, then increase the dutycycle of infrared transmitting tube, red to increase
The ultrared intensity that emission pipe sends, thus improve infrared gesture identifying device identification gesture and move
Reliability when making.
In technique scheme, owing to the multiple signals in the intensity level curve of infrared reflectance signal are strong
The meansigma methods of angle value reflects the distance of this infrared gesture identifying device of user distance, therefore, user
When this infrared gesture identifying device is nearer, reduce the dutycycle of infrared transmitting tube, infrared to reduce
The driving electric current of transmitting tube, this reduces the power of infrared transmitting tube, thus reduces infrared
Penetrating the ultrared intensity that pipe is launched, when now user carries out gesture motion again, receive is infrared
The amplitude of variation of the intensity level of reflected signal is the most obvious, enters such that it is able to identify user exactly
The gesture motion of row.And infrared gesture identification dress is just reduced when reducing the power of infrared transmitting tube
The power consumption put.It addition, this infrared gesture identifying device of user distance farther out time, increase infrared emission
The dutycycle of pipe, to increase the driving electric current of infrared transmitting tube, which increases infrared transmitting tube
Power, thus improve the ultrared intensity that infrared transmitting tube is launched, now user carries out hands again
During gesture action, it is to avoid cannot recognize that because the intensity level of the infrared reflectance signal received is more weak
The gesture motion that user makes so that the infrared gesture identifying device of user distance farther out time, still may be used
To identify the gesture motion that user is carried out.
Technical scheme is described in detail below by two embodiments.
Embodiment one: gather the infrared reflectance signal in a period of time, and obtain this infrared reflectance signal
Intensity level curve.If ascending curve section in this intensity level curve, then before taking in this ascending curve section
N number of signal strength values.Calculate the meansigma methods of this N number of signal strength values, if N number of signal strength values
Meansigma methods more than 800, illustrate that the infrared gesture identifying device of user distance is closer, then by infrared
The dutycycle penetrating pipe is reduced to 1/4th or 1/5th from original 1/3rd, so on the one hand
The power making infrared transmitting tube reduces, and reduces the power consumption of infrared gesture identifying device, on the other hand
The detecting distance making infrared gesture identifying device reduces, and infrared reflectance signal intensity level is from original 800
It is reduced to 100.But the detection interval range of infrared gesture identifying device does not change, as originally
Detection interval be [0,1024], detecting distance reduce after, detection interval be still [0,1024].This
Sample, no matter whether user or not the dead ahead of infrared gesture identifying device, when user makes gesture motion also
Can normally detect, and discrimination will not decline.Infrared reflectance signal is detected when certain time period
Intensity level the least time, be restored to original dutycycle, increase the distance of detection.
Embodiment two: gather the infrared reflectance signal in a period of time, and obtain this infrared reflectance signal
Intensity level curve.If this intensity level curve does not has ascending curve section, then take in this ascending curve section
All of signal strength values.If the meansigma methods of this all of signal strength values is less than 50, illustrate to use
Family is distant apart from infrared gesture identifying device, then by the dutycycle of infrared transmitting tube from original five points
One of increase to 1/3rd, so increase infrared gesture identifying device detecting distance, infrared external reflection
Signal strength values increases to 100 from original 50.But the detection interval model of infrared gesture identifying device
Enclose and do not change, if original detection interval is [0,1024], after detecting distance reduces, detection
Interval is still [0,1024].Multiple letters when the intensity level curve of the infrared reflectance signal again collected
When the meansigma methods of number intensity level is bigger, illustrate that user and infrared gesture identifying device diminish, the most again
Return to original dutycycle, reduce the distance of detection.
Fig. 3 shows the controlling party of infrared gesture identifying device according to another embodiment of the invention
The schematic flow diagram of method.
As it is shown on figure 3, the control of infrared gesture identifying device according to another embodiment of the invention
Method, including:
Step 302, the intensity level curve of the infrared reflectance signal in collection a period of time.
Step 304, it may be judged whether there is ascending curve, when judged result is for being, enters step
306, otherwise, enter step 308.
Step 306, takes the top n signal strength values in ascending curve section as multiple signal intensitys
Value.
Step 308, takes in intensity level curve all of signal strength values as multiple signal strength values.
Step 310, calculates meansigma methods M of multiple signal strength values.
Step 312, it is judged that whether exist in multiple signal strength values K signal strength values of continuous print with
The difference of M value is less than Z (the i.e. first preset value), enters step 314 when judged result is for being,
Otherwise, this flow process is terminated.
Step 314, it is judged that whether M is more than Y1 (the i.e. second preset value)？It is yes in judged result
Time, enter step 316, otherwise, enter step 318.
Step 316, reduces the dutycycle of infrared transmitting tube.
Step 318, it is judged that whether M is less than Y2 (the i.e. the 3rd preset value)？It is yes in judged result
Time, enter step 320, otherwise, terminate this flow process.
Step 320, improves the dutycycle of infrared transmitting tube.
Fig. 4 shows the schematic block diagram of the most infrared gesture identifying device.
As shown in Figure 4, the most infrared gesture identifying device 400, including:
Computing unit 402 and regulation unit 404.
Computing unit 402, for calculating in the intensity level curve of the infrared reflectance signal in a period of time
The meansigma methods of multiple signal strength values.
Further, infrared gesture identifying device 400 also includes: the second judging unit 408, first
Determining that unit 410 and second determines unit 412, wherein, the second judging unit 408 is used for judging by force
Whether angle value curve has ascending curve section；First determines unit 410, if in intensity level curve
There is ascending curve section, then determine multiple signal strength values according to the signal strength values in ascending curve section,
Such as, front N (such as, N=30) the individual signal strength values in ascending curve section is taken as multiple letters
Number intensity level, thus ensure that multiple signal strength values of acquirement can relatively accurately reflect user
Distance apart from infrared gesture identifying device 400；Second determines unit 412, if bent for intensity level
Line does not has ascending curve section, then determines multiple signal intensity according to the signal strength values of intensity level curve
Value, such as, takes in this intensity level curve all of signal strength values as multiple signal strength values.
For ascending curve section, refer to the curve that a section in intensity level curve rises, and in this section
Maximum signal value in the curve risen exceedes certain value with the difference of minimum signal strength value.Example
As, there is one section of curve risen, the maximum signal value in the curve that this section rises and minimum signal
Intensity level is respectively 150 and 100, and the difference of maximum signal value and minimum signal strength value is not
More than 150, then judge that the curve that this section rises not is ascending curve section.The most such as, have on one section
The curve risen, maximum signal value and minimum signal strength value in the curve that this section rises are respectively
350 and 100, the difference of maximum signal value and minimum signal strength value has exceeded 150, then sentence
The curve that this section fixed rises is ascending curve section.
Regulation unit 404, for infrared according to the meansigma methods infrared gesture identifying device 400 of regulation
Penetrate the dutycycle of pipe.
Further, infrared gesture identifying device 400 also includes: the first judging unit 406, is used for
Judge that each signal strength values in multiple signal strength values is the most pre-less than first with the difference of meansigma methods
If value；And if the first judging unit 406 judges to have in multiple signal strength values K signal strength values
Be less than the first preset value with the difference of meansigma methods, then explanation intensity level curve is more stable, further
Illustrate that user is more stable with the distance of infrared gesture identifying device 400, then regulation unit 404 basis
The dutycycle of meansigma methods regulation infrared transmitting tube, wherein, K is the positive integer more than 1.If multiple letters
Number intensity level not there are K the signal strength values difference with meansigma methods less than the first preset value, say
The fluctuation ratio of bright intensity level curve is relatively big, further explanation user and infrared gesture identifying device 400
Distance change, the dutycycle of infrared transmitting tube is not adjusted, to avoid user
When infrared gesture identifying device 400, but increase the dutycycle of infrared transmitting tube, and avoid using
Family is away from but reducing the dutycycle of infrared transmitting tube during infrared gesture identifying device 400, thus ensures
The reliability of gesture identification.
Further, K signal strength values is continuous print in intensity level curve.
Further, regulation unit 404 includes: the first regulon unit 4042, if for average
Value more than the second preset value, illustrates that the intensity level of infrared reflectance signal received is bigger, user away from
Closer from infrared gesture identifying device 400, then reduce the dutycycle of infrared transmitting tube, red to reduce
The ultrared intensity that emission pipe sends；Second regulon unit 4044, if little for meansigma methods
In the 3rd preset value, illustrating that the intensity level of infrared reflectance signal received is smaller, user distance is red
Outer gesture identifying device 400 is distant, then increase the dutycycle of infrared transmitting tube, to increase infrared
Penetrate the ultrared intensity that pipe sends, thus improve infrared gesture identifying device 400 and identify that gesture is moved
Reliability when making.
Embodiment one: if the meansigma methods of multiple signal strength values is more than 800, illustrate that user distance is infrared
Gesture identifying device 400 is closer, then by the dutycycle of infrared transmitting tube from 1/3rd original falls
Low to 1/4th or 1/5th, so on the one hand make the power of infrared transmitting tube reduce, fall
The power consumption of low infrared gesture identifying device 400, on the other hand makes the inspection of infrared gesture identifying device 400
Range finding is from reduction, and infrared reflectance signal intensity level is reduced to 100 from original 800.But infrared gesture
Identify device 400 detection interval range do not change, as original detection interval be [0,
1024], after detecting distance reduces, detection interval is still [0,1024].So, no matter user is not
At the dead ahead of infrared gesture identifying device 400, also can normally detect when user makes gesture motion
Arrive, and discrimination will not decline.The intensity level of infrared reflectance signal is detected very when certain time period
Hour, it is restored to original dutycycle, increases the distance of detection.
Embodiment two: if the meansigma methods of multiple signal strength values is less than 50, illustrate that user distance is infrared
Gesture identifying device 400 is distant, then by the dutycycle of infrared transmitting tube from 1/5th original increasings
Being added to 1/3rd, so increase the detecting distance of infrared gesture identifying device 400, infrared external reflection is believed
Number intensity level increases to 100 from original 50.But the detection of infrared gesture identifying device 400 is interval
Scope does not change, if original detection interval is [0,1024], after detecting distance reduces, and inspection
Surveying interval is still [0,1024].Intensity level curve multiple when the infrared reflectance signal again collected
When the meansigma methods of signal strength values is bigger, illustrate that user and infrared gesture identifying device 400 diminish,
Then it is restored to original dutycycle, reduces the distance of detection.
In technique scheme, owing to the multiple signals in the intensity level curve of infrared reflectance signal are strong
The meansigma methods of angle value reflects the distance of this infrared gesture identifying device 400 of user distance, therefore,
When this infrared gesture identifying device 400 of user distance is nearer, reduce the dutycycle of infrared transmitting tube, with
Reduce the driving electric current of infrared transmitting tube, this reduces the power of infrared transmitting tube, thus reduce
The ultrared intensity that infrared transmitting tube is launched, time now user carries out gesture motion again, receives
The amplitude of variation of the intensity level of the infrared reflectance signal arrived is the most obvious, such that it is able to identify exactly
Go out the gesture motion that user is carried out.And just reduce infrared hands when reducing the power of infrared transmitting tube
The power consumption of gesture identification device 400.It addition, at this infrared gesture identifying device 400 of user distance farther out
Time, increase the dutycycle of infrared transmitting tube, to increase the driving electric current of infrared transmitting tube, thus increase
The big power of infrared transmitting tube, thus improve the ultrared intensity that infrared transmitting tube is launched,
Time now user carries out gesture motion again, it is to avoid because the intensity level of the infrared reflectance signal received
More weak and cannot recognize that the gesture motion that user makes, so that user distance infrared gesture identification dress
Put 400 farther out time, still can identify the gesture motion that user is carried out.
Fig. 5 shows the schematic block diagram of equipment according to an embodiment of the invention.
As it is shown in figure 5, equipment 500 according to an embodiment of the invention, including in technique scheme
The infrared gesture identifying device 400 of any one, therefore, this equipment 500 has and technique scheme
Any one of the identical technique effect of infrared gesture identifying device 400, do not repeat them here.
Wherein, equipment 500 includes but not limited to: household electrical appliance, intelligent home device, computer,
Such as household electrical appliance include air-conditioner, refrigerator, air purifier, and intelligent home device includes intelligence clothing
Cabinet, intelligent desk lamp.
Technical scheme is described in detail, by the technical side of the present invention above in association with accompanying drawing
Case, according to the dutycycle of the far and near regulation infrared transmitting tube of the infrared gesture identifying device of user distance, no
It is only capable of the power consumption reducing infrared gesture identifying device, moreover it is possible to improve infrared gesture identifying device identification hands
Accuracy rate during gesture action, thus promote Consumer's Experience.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (11)
1. the control method of an infrared gesture identifying device, it is characterised in that including:
Multiple signal strength values in the intensity level curve of the infrared reflectance signal in calculating a period of time
Meansigma methods；
The dutycycle of the infrared transmitting tube of described infrared gesture identifying device is regulated according to described meansigma methods.
The control method of infrared gesture identifying device the most according to claim 1, its feature exists
In, also include:
Judge that each signal strength values in the plurality of signal strength values with the difference of described meansigma methods is
No it is less than the first preset value；
If the plurality of signal strength values there being K signal strength values be less than with the difference of described meansigma methods
Described first preset value, then regulate the dutycycle of described infrared transmitting tube according to described meansigma methods, its
In, K is the positive integer more than 1.
The control method of infrared gesture identifying device the most according to claim 2, its feature exists
In, described K signal strength values is continuous print in described intensity level curve.
The controlling party of infrared gesture identifying device the most according to any one of claim 1 to 3
Method, it is characterised in that described according to described meansigma methods regulate described infrared gesture identifying device infrared
The step of the dutycycle of transmitting tube, specifically includes:
If described meansigma methods is more than the second preset value, then reduce the dutycycle of described infrared transmitting tube；
If described meansigma methods is less than the 3rd preset value, then increase the dutycycle of described infrared transmitting tube,
Wherein, described second preset value is more than described 3rd preset value.
The controlling party of infrared gesture identifying device the most according to any one of claim 1 to 4
Method, it is characterised in that also include:
Judge whether described intensity level curve has ascending curve section；
If described intensity level curve having described ascending curve section, then according in described ascending curve section
Signal strength values determines the plurality of signal strength values；
If described intensity level curve there is no described ascending curve section, then according to described intensity level curve
Signal strength values determines the plurality of signal strength values.
6. an infrared gesture identifying device, it is characterised in that including:
Computing unit is many for calculating in the intensity level curve of the infrared reflectance signal in a period of time
The meansigma methods of individual signal strength values；
Regulation unit, for infrared according to the described meansigma methods described infrared gesture identifying device of regulation
Penetrate the dutycycle of pipe.
Infrared gesture identifying device the most according to claim 6, it is characterised in that also wrap
Include:
First judging unit, for judge each signal strength values in the plurality of signal strength values with
Whether the difference of described meansigma methods is less than the first preset value；
If described first judging unit judge the plurality of signal strength values has K signal strength values and
The difference of described meansigma methods is less than described first preset value, and the most described regulation unit is according to described meansigma methods
Regulating the dutycycle of described infrared transmitting tube, wherein, K is the positive integer more than 1.
Infrared gesture identifying device the most according to claim 7, it is characterised in that described K
Individual signal strength values is continuous print in described intensity level curve.
9. according to the infrared gesture identifying device according to any one of claim 6 to 8, its feature
Being, described regulation unit includes:
First regulon unit, if for described meansigma methods more than the second preset value, then reducing described red
The dutycycle of emission pipe；
Second regulon unit, if for described meansigma methods less than the 3rd preset value, then increasing described red
The dutycycle of emission pipe,
Wherein, described second preset value is more than described 3rd preset value.
10. according to the infrared gesture identifying device according to any one of claim 6 to 9, its feature
It is, also includes:
Second judging unit, is used for judging whether there is ascending curve section in described intensity level curve；
First determines unit, if having described ascending curve section, then basis in described intensity level curve
Signal strength values in described ascending curve section determines the plurality of signal strength values；
Second determines unit, if not having described ascending curve section, then root in described intensity level curve
The plurality of signal strength values is determined according to the signal strength values of described intensity level curve.
11. 1 kinds of equipment, it is characterised in that including: institute as any one of claim 6 to 10
The infrared gesture identifying device stated.
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| CN201610383264.9A CN106020486B (en) | 2016-05-31 | 2016-05-31 | Control method, device and equipment of infrared gesture recognition device |
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| CN106020486B (en) | 2019-12-24 |
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