CN105353876A - Multi-point light sensation based spatial gesture identification control system and method - Google Patents
Multi-point light sensation based spatial gesture identification control system and method Download PDFInfo
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Abstract
The invention provides a multi-point light sensation based spatial gesture identification control system and method, and relates to the technical field of man-machine interaction. The system comprises an infrared array module, an analog-digital conversion module, a data buffer and a main processor connected in sequence. The system further comprises an LED driving module connected with the main processor, and an infrared emitter transistor connected with the LED driving module. The main processor comprises a curve generation unit as well as a learning unit and a control instruction matching unit connected with the curve generation unit. The curve generation unit is further connected with the data buffer. The infrared array module comprises four infrared sensors distributed in a cross shape. The four infrared sensors are all connected with the analog-digital conversion module. According to the multi-point light sensation based spatial gesture identification control system and method, the number of components in a gesture identification control apparatus in the prior art can be reduced, the structure of the gesture identification control apparatus can be simplified, fault points possibly occurring in the gesture identification control apparatus can be reduced, and the gesture identification control apparatus can realize miniaturized packaging.
Description
Technical field
The invention belongs to human-computer interaction technique field, particularly relate to a kind of space gesture control system for identifying based on multiple spot light sensation and method.
Background technology
Human-computer interaction technology is research field very popular in recent years, mouse and keyboard light are traditional human-computer interaction devices, there is the various novel man-machine interaction modes such as such as touch-control control, Sound control, gesture control in recent years, improved in the naturality and friendly of Consumer's Experience.Particularly in the non-contact type human-machine interaction mode that gesture control is representative, real-time by various kinds of sensors equipment or complete within a short period of time hand motion identifying, and be converted to the order that the host equipments such as computing machine can identify, be current popular a kind of man-machine interaction mode.In prior art, general employing infrared emission array and infrared receiver array gather the gesture motion of user, wherein, four power valves are at least comprised in infrared emission array, and quantity is corresponding with the quantity of receiving tube in infrared receiver array, then identifies the corresponding steering order of rear output by signal processing module to the gesture collected.Such as: application number be 201420800360.5 Chinese patent application disclose a kind of 3D gesture recognition controller, it have employed four infrared transmitting tubes of the distribution in " ten " font, the infrared sensor receiving tube of several array arrangements that are square at " ten " word center that described four infrared transmitting tubes are formed, signal condition and other components and parts such as acquisition module and signal processing module realize the function that Non-contact gesture identification controls, this mode controls although can realize non-contact gesture identification, but the number of elements adopted is many, complex structure, the trouble spot that may occur is more, and can not miniaturization.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of space gesture control system for identifying based on multiple spot light sensation and method, the number of elements being intended to solve the employing of above-mentioned gesture motion identification controller is many, complex structure, the trouble spot that may occur is more, and can not the problem of miniaturization.
The embodiment of the present invention realizes like this, a kind of space gesture control system for identifying based on multiple spot light sensation, comprise: the infrared array module, analog-to-digital conversion module, data buffer and the primary processor that connect successively, also comprise the LED drive module be connected with described primary processor, the infrared transmitting tube be connected with described LED drive module; Described primary processor comprises curve generation unit and the unit that is connected with described curve generation unit and steering order matching unit, and described curve generation unit is also connected with described data buffer; Described infrared array module comprises four infrared sensors of the distribution in " ten " font, and described four infrared sensors are all connected with described analog-to-digital conversion module, wherein:
Described LED drive module, for driving described infrared transmitting tube to the infrared light of the gesture operation direction transmitting specific wavelength of user;
Described four infrared sensors, for gathering the infrared signal that described gesture operation direction reflects, and are sent to analog-to-digital conversion module according to synchronous clock signal by the infrared signal collected;
Described analog-to-digital conversion module, exports four railway digital sampled signals to described data buffer after carrying out digitized processing to the infrared signal of described four infrared sensor collections;
Described four railway digital sampled signals for receiving described four railway digital sampled signals, and are sent to described primary processor according to the principle of first in first out by described data buffer;
Described curve generation unit, the variation tendency for the infrared signal intensity collected by described four infrared sensors according to described four railway digital sampled signals fits to four curves;
Described unit, for learning in advance and storing the characteristic curve template corresponding to different gestures;
Described steering order matching unit, for identifying the gesture of user according to described four curves and described characteristic curve template, and exports corresponding steering order according to the gesture of user.
Described in the embodiment of the present invention based in the space gesture control system for identifying of multiple spot light sensation, described curve generation unit comprises the pre-service subelement and Curves compilation subelement that connect successively, described pre-service subelement is also connected with described data buffer, described Curves compilation subelement is also connected with described unit and described steering order matching unit, wherein:
Described pre-service subelement, for the smoothing process of described four railway digital sampled signal;
Described Curves compilation subelement, for according to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
Described in the embodiment of the present invention based in the space gesture control system for identifying of multiple spot light sensation, described unit comprise connect successively curvature estimation subelement, change rate curve generate subelement, gesture judgment sub-unit and storing sub-units, described curvature estimation subelement is connected with described Curves compilation subelement, described storing sub-units is connected with described steering order matching unit, wherein:
Described curvature estimation subelement, for calculating four bent curvatures of a curve that in different time sections, described curve generation unit exports;
Described change rate curve generates subelement, for obtaining time dependent four change rate curves of described four bent curvatures of a curve according to the curvature of described four curves in different time sections;
Described gesture judgment sub-unit, for judging the gesture of user according to described four change rate curves;
Described storing sub-units, for storing the characteristic curve template corresponding to different gestures according to the judged result of described gesture judgment sub-unit.
Described in the embodiment of the present invention based in the space gesture control system for identifying of multiple spot light sensation, described unit also comprises and is connected to described change rate curve and generates triggers unit between subelement and described gesture judgment sub-unit;
Described triggers unit, for judging whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then triggers the gesture of described gesture judgment sub-unit identification user.
Described in the embodiment of the present invention based in the space gesture control system for identifying of multiple spot light sensation, described gesture judgment sub-unit comprises the feature extraction subelement and gesture identification subelement that connect successively, described feature extraction subelement also generates subelement with described change rate curve and is connected, described gesture identification subelement is also connected with described steering order matching unit, wherein:
Described feature extraction subelement, for extracting crest value in described four change rate curves, time that crest value occurs and crest value occur before and after curvature Variation;
Described gesture identification subelement, for identifying the gesture of user according to the time of the described crest value in described four change rate curves, the appearance of described crest value and the curvature Variation of described crest value appearance front and back.
Another object of the embodiment of the present invention is to provide a kind of space gesture identification control method based on multiple spot light sensation, comprising:
Learn in advance and store the characteristic curve template corresponding to different gestures;
Drive infrared transmitting tube to the infrared light of the gesture operation direction transmitting specific wavelength of user;
Employing is arranged near described infrared transmitting tube and four infrared sensors of distribution gather the infrared signal that described gesture operation direction reflects in " ten " font, and makes described four infrared sensors export the infrared signal collected according to synchronous clock signal;
Export four railway digital sampled signals after digitized processing is carried out to the infrared signal of described four infrared sensor collections, and according to the principle of first in first out by described four railway digital sampled signal buffer memorys to data buffer;
The variation tendency of the infrared signal intensity that described four infrared sensors collect by the four railway digital sampled signals exported according to described data buffer fits to four curves;
Identify the gesture of user according to described four curves and described characteristic curve template, and export corresponding steering order according to the gesture of user.
Described in the embodiment of the present invention based in the space gesture identification control method of multiple spot light sensation, the variation tendency of the infrared signal intensity that described four infrared sensors collect by the four railway digital sampled signals exported according to described data buffer fits to four curves and specifically comprises:
To the smoothing process of four railway digital sampled signals that described data buffer exports;
According to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
Described in the embodiment of the present invention based in the space gesture identification control method of multiple spot light sensation, describedly to learn in advance and the characteristic curve template stored corresponding to different gestures specifically comprises:
The variation tendency of the infrared signal intensity collected by described four infrared sensors fits to four curves, and calculates described four bent curvatures of a curve in different time sections;
Time dependent four change rate curves of described four bent curvatures of a curve are obtained according to the curvature of described four curves in different time sections;
Judge the gesture of user according to described four change rate curves, and store the characteristic curve template corresponding to different gestures according to judged result.
Described in the embodiment of the present invention based in the space gesture identification control method of multiple spot light sensation, the described gesture judging user according to described four change rate curves, and also comprising before storing corresponding to different gestures characteristic curve template according to judged result;
Judge whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then enter the step judging the gesture of user according to described four change rate curves.
Described in the embodiment of the present invention based in the space gesture identification control method of multiple spot light sensation, describedly judge that the gesture of user specifically comprises according to described four change rate curves:
Extract the crest value in described four change rate curves, the time of crest value appearance and the curvature Variation of crest value appearance front and back;
Curvature Variation before and after the time occurred according to the described crest value in described four change rate curves, described crest value and described crest value occur identifies the gesture of user.
The space gesture control system for identifying based on multiple spot light sensation that the enforcement embodiment of the present invention provides and method have following beneficial effect:
The embodiment of the present invention gathers owing to first adopting an infrared transmitting tube and being positioned at four infrared sensors distributed near described infrared transmitting tube and in " ten " font and learns the family curve template corresponding to different gestures, then by carrying out the curve corresponding to user's gesture of Real-time Collection and described family curve template mating the identification and control that realize gesture, thus greatly reduce the number of elements of gesture identification control device inside in prior art, simplify the structure of gesture identification control device, decrease the trouble spot that may occur in gesture identification control device, and make gesture identification control device can realize the encapsulation of miniaturization, in addition, the Curvature varying trace analysis algorithm that the present invention adopts, significantly improves the discrimination of gesture instruction.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the space gesture control system for identifying based on multiple spot light sensation that the embodiment of the present invention provides;
Fig. 2 is the concrete structure schematic diagram based on primary processor inside in the space gesture control system for identifying of multiple spot light sensation that the embodiment of the present invention provides;
Fig. 3 is the specific implementation process flow diagram of the space gesture identification control method based on multiple spot light sensation that the embodiment of the present invention provides;
Fig. 4 is the specific implementation process flow diagram based on S301 in the space gesture identification control method of multiple spot light sensation that the embodiment of the present invention provides;
Fig. 5 is the specific implementation process flow diagram based on S305 in the space gesture identification control method of multiple spot light sensation that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is the structured flowchart of the space gesture control system for identifying based on multiple spot light sensation that the embodiment of the present invention provides.Illustrate only part related to the present embodiment for convenience of explanation.
Shown in Figure 1, a kind of space gesture control system for identifying based on multiple spot light sensation that the present embodiment provides, comprise: the infrared array module 2 connected successively, analog-to-digital conversion module 3, data buffer 4 and primary processor 5, also comprise the LED drive module 6 be connected with described primary processor 5, the infrared transmitting tube 1 be connected with described LED drive module 6; Described primary processor 5 comprises curve generation unit 51 and the unit 52 that is connected with described curve generation unit 51 and steering order matching unit 53, and described curve generation unit 51 is also connected with described data buffer 4; Described infrared array module 2 comprises four infrared sensors of the distribution in " ten " font, and described four infrared sensors are all connected with described analog-to-digital conversion module 3, wherein:
Described LED drive module 6, for driving described infrared transmitting tube 1 to the infrared light of the gesture operation direction transmitting specific wavelength of user.In the present embodiment, primary processor 5 also comprises for power supply unit, for by the voltage of externally fed voltage transitions needed for inner modules work, thinks that the modules of internal system provides operating voltage.Wherein, described LED drive module 6 is connected with the power supply unit in described primary processor 5, to obtain operating voltage from described power supply unit.
Described four infrared sensors, for gathering the infrared signal that described gesture operation direction reflects, and are sent to analog-to-digital conversion module 3 according to synchronous clock signal by the infrared signal collected.
In the present embodiment, described four infrared sensors lay respectively at " east, south, west, north " four direction of " ten " font, specifically for gathering the infrared light launched of infrared transmitting tube 1 according to fixed time interval by the signal after reflecting, and by synchronous clock signal, respectively the infrared signal received is sent to analog-to-digital conversion module 3.
Described analog-to-digital conversion module 3, exports four railway digital sampled signals to described data buffer 4 after carrying out digitized processing to the infrared signal of described four infrared sensor collections.
In the present embodiment, described analog-to-digital conversion module 3 obtains the infrared signal intensity that each sensor collects after the infrared signal of four infrared sensor collections being carried out data word process, then the infrared signal intensity that four infrared sensors collect be stored in fifo queue respective in described data buffer 4 respectively.
Described four railway digital sampled signals for receiving described four railway digital sampled signals, and are sent to described primary processor 5 according to the principle of first in first out by described data buffer 4.Preferably, described data buffer 4 is data fifo buffer 4, described four circuit-switched data sampled signals, after receiving described four circuit-switched data sampled signals, are sent to described primary processor 5 with the form of queue according to the principle of first in first out by described data fifo buffer 4 respectively.
Described curve generation unit 51, the variation tendency for the infrared signal intensity collected by described four infrared sensors according to described four railway digital sampled signals fits to four curves.
Further, described curve generation unit 51 comprises the pre-service subelement 511 and Curves compilation subelement 512 that connect successively, described pre-service subelement 511 is also connected with described data buffer 4, described Curves compilation subelement 512 is also connected with described unit 52 and described steering order matching unit 53, wherein:
Described pre-service subelement 511, for the smoothing process of described four railway digital sampled signal.In the present embodiment, described pre-service subelement 511 specifically for: from the queue that data buffer 4 exports, take out four circuit-switched data sampled signals corresponding with described four sensors, and difference comparative analysis is done to the sensing data of four on same time point, the sensing data exceeding setting difference is considered as exception, and adopts the respective sensor data on adjacent time point to do smoothing processing.Wherein, described setting difference is relevant with the physics relative position of four sensors, and therefore, in distinct device, the physics relative position of four sensors is all fixing, and is unified in calibration when equipment dispatches from the factory by producer.
Described Curves compilation subelement 512, for according to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
Described unit 52, for learning in advance and storing the characteristic curve template corresponding to different gestures.
Further, described unit 52 comprise connect successively curvature estimation subelement 521, change rate curve generate subelement 522, gesture judgment sub-unit 524 and storing sub-units 525, described curvature estimation subelement 521 is connected with described Curves compilation subelement 512, described storing sub-units 525 is connected with described steering order matching unit 53, wherein:
Described curvature estimation subelement 521, for calculating four bent curvatures of a curve that in different time sections, described curve generation unit 51 exports.
Described change rate curve generates subelement 522, for obtaining time dependent four change rate curves of described four bent curvatures of a curve according to the curvature of described four curves in different time sections.
Described gesture judgment sub-unit 524, for judging the gesture of user according to described four change rate curves.
In the present embodiment, described gesture judgment sub-unit 524 comprises the feature extraction subelement 5241 and gesture identification subelement 5242 that connect successively, described feature extraction subelement 5241 also generates subelement 522 with described change rate curve and is connected, described gesture identification subelement 5242 is also connected with described steering order matching unit 53, wherein:
Described feature extraction subelement 5241, for extracting crest value in described four change rate curves, time that crest value occurs and crest value occur before and after curvature Variation;
Described gesture identification subelement 5242, for identifying the gesture of user according to the time of the described crest value in described four change rate curves, the appearance of described crest value and the curvature Variation of described crest value appearance front and back.Concrete, in the present embodiment, first gesture identification subelement 5242 compares the time that crest value in four change rate curves and crest value occur, close with the crest value obtaining change rate curve in four infrared sensors, and difference two infrared sensors within the specific limits between the time of crest value appearance, its gesture direction is infrared sensor larger from the time that the infrared sensor beacon peak value that the time that crest value occurs is less occurs in above-mentioned two sensors, because the infrared sensor of four in the present embodiment is arranged in " ten " font, so just, can determine upwards, downwards, left, four gesture instruction to the right.When the time that four change rate curve medium wave peak values occur is identical or close, Curvature varying before and after gesture identification subelement 5242 also can further occur according to four change rate curve medium wave peaks determine current gesture instruction be " close " or " away from ", wherein, before and after crest value occurs, then the variation tendency of curvature for disappear from small to large, then illustrate that gesture is now " close ", before and after crest value occurs, then the variation tendency of curvature for disappear from big to small, then the gesture illustrating now be " away from ".We are in conjunction with above-mentioned two kinds of algorithms like this, we can obtain " upwards ", " downwards " " to the right ", " left ", " close to and upwards ", " close to and downwards ", " close to and to the right ", " close to and left ", " away from and upwards ", " away from and downwards ", " away from and to the right ", " away from and left " 12 gestures.
Described storing sub-units 525, for storing the characteristic curve template corresponding to different gestures according to the judged result of described gesture judgment sub-unit 524.
Further, described unit 52 also comprises the triggers unit 523 be connected between described change rate curve generation subelement 522 and described gesture judgment sub-unit 524;
Described triggers unit 523, for judging whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then triggers the gesture that described gesture judgment sub-unit 524 identifies user.So only when reaching pre-conditioned, gesture judgment sub-unit 524 just starts to enter duty, can save the energy consumption of system.
Described steering order matching unit 53, for identifying the gesture of user according to described four curves and described characteristic curve template, and exports corresponding steering order according to the gesture of user.In the present embodiment, each gesture is all to there being a steering order, and the corresponding relation between gesture and steering order is set when dispatching from the factory by producer.
More than can find out, the Curvature varying trace analysis algorithm of space gesture control system for identifying owing to adopting based on multiple spot light sensation that the embodiment of the present invention provides, significantly improve the discrimination of gesture instruction, and only need adopt an infrared transmitting tube and four identification and controls being " ten " font distribution infrared sensor and can realizing gesture, greatly reduce the number of elements of gesture identification control device inside in prior art, its structure is relatively simple, the trouble spot that may occur is less, and the encapsulation of miniaturization can be realized, be convenient to be applied in concrete product and go.。
Fig. 2 is the specific implementation process flow diagram of the space gesture identification control method based on multiple spot light sensation that the embodiment of the present invention provides, and the executive agent of the method is the system shown in Fig. 1 ~ 2.Shown in Figure 3, the detailed implementation of a kind of space gesture identification control method based on multiple spot light sensation that the embodiment of the present invention provides is as follows:
In S301, learn in advance and store the characteristic curve template corresponding to different gestures; As a specific implementation example, Fig. 4 shows the specific implementation process of S301, and shown in Figure 4, S301 specifically comprises:
In S401, the variation tendency of the infrared signal intensity collected by described four infrared sensors fits to four curves, and calculates described four bent curvatures of a curve in different time sections;
In S402, obtain time dependent four change rate curves of described four bent curvatures of a curve according to the curvature of described four curves in different time sections;
In S403, judge the gesture of user according to described four change rate curves, and store the characteristic curve template corresponding to different gestures according to judged result.Optionally, can also comprise before described S303; Judge whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then enter the step judging the gesture of user according to described four change rate curves.
In S302, drive infrared transmitting tube 1 to the infrared light of the gesture operation direction transmitting specific wavelength of user;
In S303, employing is arranged near described infrared transmitting tube 1 and four infrared sensors of distribution gather the infrared signal that described gesture operation direction reflects in " ten " font, and makes described four infrared sensors export the infrared signal collected according to synchronous clock signal;
In S304, after digitized processing is carried out to the infrared signal of described four infrared sensor collections, export four railway digital sampled signals, and according to the principle of first in first out by described four railway digital sampled signal buffer memorys to data buffer 4;
In S305, the variation tendency of the infrared signal intensity that described four infrared sensors collect by the four railway digital sampled signals exported according to described data buffer 4 fits to four curves; As a specific implementation example, Fig. 5 shows the specific implementation process of S305, and shown in Figure 5, S305 specifically comprises:
In S501, to the smoothing process of four railway digital sampled signals that described data buffer 4 exports;
In S502, according to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
In S306, identify the gesture of user according to described four curves and described characteristic curve template, and export corresponding steering order according to the gesture of user.Wherein, describedly judge that the gesture of user specifically comprises according to described four change rate curves: extract the crest value in described four change rate curves, time that crest value occurs and crest value occur before and after curvature Variation; Curvature Variation before and after the time occurred according to the described crest value in described four change rate curves, described crest value and described crest value occur identifies the gesture of user.
It should be noted that, each step in the said method that the embodiment of the present invention provides, due to present system embodiment based on same design, its technique effect brought is identical with present system embodiment, particular content see describing in present system embodiment, can repeat no more herein.
Therefore, can find out, the Curvature varying trace analysis algorithm of the space gesture identification control method based on multiple spot light sensation that the embodiment of the present invention provides equally owing to adopting, significantly improve the discrimination of gesture instruction, and only need adopt an infrared transmitting tube and four identification and controls being " ten " font distribution infrared sensor and can realizing gesture, greatly reduce the number of elements of gesture identification control device inside in prior art, make the structure of gesture identification control device comparatively simple, and the trouble spot that may occur in gesture identification control device can be reduced, gesture identification control device can be made to realize miniaturization simultaneously, be convenient to be applied in concrete product and go.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the space gesture control system for identifying based on multiple spot light sensation, it is characterized in that, comprise: the infrared array module, analog-to-digital conversion module, data buffer and the primary processor that connect successively, also comprise the LED drive module be connected with described primary processor, the infrared transmitting tube be connected with described LED drive module; Described primary processor comprises curve generation unit and the unit that is connected with described curve generation unit and steering order matching unit, and described curve generation unit is also connected with described data buffer; Described infrared array module comprises four infrared sensors of the distribution in " ten " font, and described four infrared sensors are all connected with described analog-to-digital conversion module, wherein:
Described LED drive module, for driving described infrared transmitting tube to the infrared light of the gesture operation direction transmitting specific wavelength of user;
Described four infrared sensors, for gathering the infrared signal that described gesture operation direction reflects, and are sent to analog-to-digital conversion module according to synchronous clock signal by the infrared signal collected;
Described analog-to-digital conversion module, exports four railway digital sampled signals to described data buffer after carrying out digitized processing to the infrared signal of described four infrared sensor collections;
Described four railway digital sampled signals for receiving described four railway digital sampled signals, and are sent to described primary processor according to the principle of first in first out by described data buffer;
Described curve generation unit, the variation tendency for the infrared signal intensity collected by described four infrared sensors according to described four railway digital sampled signals fits to four curves;
Described unit, for learning in advance and storing the characteristic curve template corresponding to different gestures;
Described steering order matching unit, for identifying the gesture of user according to described four curves and described characteristic curve template, and exports corresponding steering order according to the gesture of user.
2. as claimed in claim 1 based on the space gesture control system for identifying of multiple spot light sensation, it is characterized in that, described curve generation unit comprises the pre-service subelement and Curves compilation subelement that connect successively, described pre-service subelement is also connected with described data buffer, described Curves compilation subelement is also connected with described unit and described steering order matching unit, wherein:
Described pre-service subelement, for the smoothing process of described four railway digital sampled signal;
Described Curves compilation subelement, for according to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
3. as claimed in claim 2 based on the space gesture control system for identifying of multiple spot light sensation, it is characterized in that, described unit comprise connect successively curvature estimation subelement, change rate curve generate subelement, gesture judgment sub-unit and storing sub-units, described curvature estimation subelement is connected with described Curves compilation subelement, described storing sub-units is connected with described steering order matching unit, wherein:
Described curvature estimation subelement, for calculating four bent curvatures of a curve that in different time sections, described curve generation unit exports;
Described change rate curve generates subelement, for obtaining time dependent four change rate curves of described four bent curvatures of a curve according to the curvature of described four curves in different time sections;
Described gesture judgment sub-unit, for judging the gesture of user according to described four change rate curves;
Described storing sub-units, for storing the characteristic curve template corresponding to different gestures according to the judged result of described gesture judgment sub-unit.
4. as claimed in claim 3 based on the space gesture control system for identifying of multiple spot light sensation, it is characterized in that, described unit also comprises the triggers unit be connected between described change rate curve generation subelement and described gesture judgment sub-unit;
Described triggers unit, for judging whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then triggers the gesture of described gesture judgment sub-unit identification user.
5. as claimed in claim 4 based on the space gesture control system for identifying of multiple spot light sensation, it is characterized in that, described gesture judgment sub-unit comprises the feature extraction subelement and gesture identification subelement that connect successively, described feature extraction subelement also generates subelement with described change rate curve and is connected, described gesture identification subelement is also connected with described steering order matching unit, wherein:
Described feature extraction subelement, for extracting crest value in described four change rate curves, time that crest value occurs and crest value occur before and after curvature Variation;
Described gesture identification subelement, for identifying the gesture of user according to the time of the described crest value in described four change rate curves, the appearance of described crest value and the curvature Variation of described crest value appearance front and back.
6., based on a space gesture identification control method for multiple spot light sensation, it is characterized in that, comprising:
Learn in advance and store the characteristic curve template corresponding to different gestures;
Drive infrared transmitting tube to the infrared light of the gesture operation direction transmitting specific wavelength of user;
Employing is arranged near described infrared transmitting tube and four infrared sensors of distribution gather the infrared signal that described gesture operation direction reflects in " ten " font, and makes described four infrared sensors export the infrared signal collected according to synchronous clock signal;
Export four railway digital sampled signals after digitized processing is carried out to the infrared signal of described four infrared sensor collections, and according to the principle of first in first out by described four railway digital sampled signal buffer memorys to data buffer;
The variation tendency of the infrared signal intensity that described four infrared sensors collect by the four railway digital sampled signals exported according to described data buffer fits to four curves;
Identify the gesture of user according to described four curves and described characteristic curve template, and export corresponding steering order according to the gesture of user.
7. as claimed in claim 6 based on the space gesture identification control method of multiple spot light sensation, it is characterized in that, the variation tendency of the infrared signal intensity that described four infrared sensors collect by the four railway digital sampled signals exported according to described data buffer fits to four curves and specifically comprises:
To the smoothing process of four railway digital sampled signals that described data buffer exports;
According to four railway digital sampled signals after smoothing processing, take time as x-axis, the intensity of the infrared signal collected with infrared sensor is y-axis, and the variation tendency of the infrared signal intensity collected by described four infrared sensors respectively fits to four curves.
8. as claimed in claim 7 based on the space gesture identification control method of multiple spot light sensation, it is characterized in that, describedly to learn in advance and the characteristic curve template stored corresponding to different gestures specifically comprises:
The variation tendency of the infrared signal intensity collected by described four infrared sensors fits to four curves, and calculates described four bent curvatures of a curve in different time sections;
Time dependent four change rate curves of described four bent curvatures of a curve are obtained according to the curvature of described four curves in different time sections;
Judge the gesture of user according to described four change rate curves, and store the characteristic curve template corresponding to different gestures according to judged result.
9. as claimed in claim 8 based on the space gesture identification control method of multiple spot light sensation, it is characterized in that, the described gesture judging user according to described four change rate curves, and also comprise before storing corresponding to different gestures characteristic curve template according to judged result;
Judge whether the curvature value in four change rate curves described in current time has a curvature range reaching default, if so, then enter the step judging the gesture of user according to described four change rate curves.
10. as claimed in claim 9 based on the space gesture identification control method of multiple spot light sensation, it is characterized in that, describedly judge that the gesture of user specifically comprises according to described four change rate curves:
Extract the crest value in described four change rate curves, the time of crest value appearance and the curvature Variation of crest value appearance front and back;
Curvature Variation before and after the time occurred according to the described crest value in described four change rate curves, described crest value and described crest value occur identifies the gesture of user.
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| CN201510754988.5A CN105353876B (en) | 2015-11-09 | 2015-11-09 | A kind of space gesture control system for identifying and method based on multiple spot light sensation |
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| CN201510754988.5A CN105353876B (en) | 2015-11-09 | 2015-11-09 | A kind of space gesture control system for identifying and method based on multiple spot light sensation |
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| CN105632162A (en) * | 2016-03-03 | 2016-06-01 | 南京物联传感技术有限公司 | Intelligent switch based on infrared array induction |
| CN105867625A (en) * | 2016-04-06 | 2016-08-17 | 四川东鼎里智信息技术有限责任公司 | Long-distance gesture control method |
| CN105912113A (en) * | 2016-04-06 | 2016-08-31 | 四川东鼎里智信息技术有限责任公司 | Gesture-based remote control system |
| CN105929939A (en) * | 2016-04-06 | 2016-09-07 | 四川东鼎里智信息技术有限责任公司 | Remote gesture control terminal |
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| CN105867625A (en) * | 2016-04-06 | 2016-08-17 | 四川东鼎里智信息技术有限责任公司 | Long-distance gesture control method |
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| CN106446876B (en) * | 2016-11-17 | 2019-10-18 | 南方科技大学 | A kind of sensing Activity recognition method and apparatus |
| CN106446876A (en) * | 2016-11-17 | 2017-02-22 | 南方科技大学 | Sensing behavior recognition method and device |
| CN108628433A (en) * | 2017-03-24 | 2018-10-09 | 厦门雅迅网络股份有限公司 | Gesture identification method and its system |
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| CN108490849A (en) * | 2018-06-08 | 2018-09-04 | 武汉蛋玩科技有限公司 | The robot and control method of gesture identification tracking are realized using infrared sensor |
| CN109799911A (en) * | 2019-02-01 | 2019-05-24 | 奥佳华智能健康科技集团股份有限公司 | A kind of massage armchair gesture control device and control method |
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| CN112370310A (en) * | 2019-12-11 | 2021-02-19 | 上海司羿智能科技有限公司 | Hand motion control system and control method thereof |
| CN112370311A (en) * | 2019-12-11 | 2021-02-19 | 上海司羿智能科技有限公司 | Data glove, manufacturing method and finger joint rehabilitation training device |
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