CN104536576B - Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave - Google Patents

Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave Download PDF

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Publication number
CN104536576B
CN104536576B CN201510012383.9A CN201510012383A CN104536576B CN 104536576 B CN104536576 B CN 104536576B CN 201510012383 A CN201510012383 A CN 201510012383A CN 104536576 B CN104536576 B CN 104536576B
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equipment
slave unit
main equipment
gesture
distance
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CN201510012383.9A
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CN104536576A (en
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窦新玉
申立琴
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苏州触达信息技术有限公司
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Abstract

The invention discloses equipment room gesture interaction method in a kind of same plane based on ultrasonic wave easy to use, easy to operate, equipment in first entrance interactive space is defined as main equipment, main equipment searches slave unit by acoustic signals, slave unit produces confirmation signal to reply main equipment when receiving the signal, main equipment calculates the distance of slave unit, carries out networking when the two spacing reaches preset distance and selects application program by user;The acoustic signals that main equipment is produced are received by the reflection of gesture object by slave unit, slave unit carries out dissection process after receiving, parse is that the slave unit of the machine address launches the acoustic signals, main equipment is returned by the reflection of gesture object, h is vertical range of the gesture object to equipment interplanar, X is distance of the main equipment gesture object in one's hands between subpoint in equipment plane, and gesture object of which movement type is obtained by the variation tendency for judging h and X;According to arranging in application program, execution is corresponding to be operated equipment.

Description

Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave

Technical field

The present invention relates to the control method between a kind of multimedia equipment based on ultrasonic technology.

Background technology

As the function of mobile device is increasingly enriched, multi-machine interaction can realize the interaction of multi-screen, such as many page browsings, trip Play, take pictures, paying, the function such as equipment room data transfer, this will turn into a trend of multimedia equipment future development.Now, Some multimedia equipments have begun to research and develop interaction function, and such as Samsung mobile phone S4 has been carried out Group play functions, can beat Shared photo, document, music and game on-line battle are opened, 11 many people PK game of equipment are could support up.However, Samsung mobile phone The Group play of S4, can only be as the superposition of display screen still by the way of touch-screen, and the distance of mobile phone is very small, Data transfer uses NFC.It is desirable that multi-machine interaction be not only display screen superposition, be more multiple mobile devices it Between interactive function, Gesture Recognition has been widely used for multimedia equipment, and the multimachine interaction based on gesture will be as not The big characteristic come.

The content of the invention

The purpose of the present invention is the shortcoming for overcoming prior art, there is provided a kind of easy to use, easy to operate based on ultrasound The multi-machine interaction algorithm and implementation of ripple gesture identification.

To achieve these goals, the invention provides a kind of same plane inner multimedia equipment room hand based on ultrasonic wave Gesture exchange method is more described in every for carrying out gesture interaction control at least two multimedia equipments in interactive space Media device is respectively provided with sonic generator, acoustic receiver and unique ID coding, and each multimedia equipment is respectively positioned on In same plane, the method comprises the following steps:

S1:Main equipment verification step, wherein a multimedia equipment is defined as main equipment, others are defined as slave unit;

S2:Slave unit finds step, and described main equipment searches slave unit by the acoustic signals that sonic generator is produced, When the acoustic receiver of slave unit receives the signal, produce confirmation signal to reply master by the sonic generator of slave unit and set Standby, main equipment sends the distance with reception Time Calculation slave unit by sound wave, is reached when close between main equipment and slave unit Networking is carried out during preset distance, the application program for starting is needed by user's selection afterwards;

S3:Gesture identification step, the acoustic signals that the sonic generator of described main equipment is produced are by gesture object Reflection is received by slave unit, and described slave unit carries out dissection process after receiving the signal, parse be the machine address from Equipment launches the acoustic signals, then by the acoustic receiver for returning to main equipment that reflects of gesture object, definition h is hand To the vertical range of multimedia equipment interplanar, definition X is main equipment gesture object in one's hands in multimedia equipment plane to gesture object Distance between subpoint, gesture object of which movement type is obtained by the variation tendency for judging numerical value h and X;

S4:Instruction response of step, main equipment and slave unit according to the gesture object of which movement type arranged in application program with Data processing instructions corresponding relation performs corresponding operation.

Used as further improvement of the invention, in described step S2, first party passes through sonic generator first during positioning The framing signal that the ID with the equipment is encoded is sent, after elapsed time T, second party receives this and carries by signal receiver The framing signal of ID codings and the framing signal that will be received by sonic generator after process time T are sent to the One side, elapsed-time standards is still T, by the propagation time(2T-∆T)/ 2 calculate the distance between both devices a, due to more than many The clock of media device is difficult synchronization, therefore uses without the synchronous distance-finding method of clock.

As further improvement of the invention, in described step S3, when the sonic generator and sound wave of multimedia equipment When being smaller than predetermined value of receiver, the distance values are ignored and disregard, and L1 is the distance of main equipment gesture object in one's hands, and L2 is To the distance of gesture object, a is the distance between equipment to slave unit, wherein:

The time that main equipment sends the acoustic receiver for reflecting back into main equipment through gesture object after sound wave is T3, obtains sound The distance of ripple correspondence walking is L ', then have L1=L '/2;

It is T1, slave unit warp that main equipment sends the time reflexed to up to the ripple receiver of slave unit through gesture object after sound wave Cross after T time treatment and send sound wave and reflex to the time received up to the acoustic receiver of main equipment for T2 through gesture object, root According to(T1+T2--∆T)It is L to obtain sound wave correspondence travel distance, then have L2=L/2-L1;

According to x2+h2=L12 and (a-x) 2+h2=L22, the value of h, X is obtained, with the movement of gesture object, by judging The variation tendency of numerical value h and X obtains gesture object of which movement type:

When the value of X increases, judge that gesture object is moved to close to the direction of slave unit;

When the value of X reduces, judge that gesture object is moved to close to the direction of main equipment;

When the value of h increases, judge that gesture object is moved to the direction away from plane where main equipment and slave unit;

When the value of h reduces, judge that gesture object is moved to close to the direction of plane where main equipment and slave unit.

Used as further improvement of the invention, described ID codings include that geocoding or ultrasound coding or equipment are used Name in an account book claims.

Used as further improvement of the invention, described sonic generator includes loudspeaker, described acoustic receiver bag Include microphone.

Improved as of the invention further, when between main equipment and slave unit when preset distance is reached, main equipment Slave unit to increasing newly carries out carrying out networking after authentication passes through.

Used as further improvement of the invention, when main equipment searches slave unit, searching signal has the frequency of agreement, or Amplitude, or the transmission number of cycles arranged, or the transmission time interval arranged.

Used as further improvement of the invention, the data transfer between multimedia equipment is by cable network or wireless Real-time performance.

The present invention proposes that a kind of algorithm of multi-machine interaction ultrasound gesture identification is designed with implementation, program design just like Lower advantage:

1st, multimedia equipment is furnished with microphone and loudspeaker, and microphone be able to can be made as acoustic receiver, loudspeaker It is sonic generator, without increasing electronic component to multimedia equipment, without changing original circuit design, to device hardware Cost does not influence.

2nd, multiple multimedia equipment joint identification gestures closely and interact as high-end multimedia equipment One mark, is a trend of following Intelligent mobile equipment development.

3rd, gesture identification is contactless operation, and gesture is easy to use, easy to operate.

Brief description of the drawings

Accompanying drawing 1 show two multimedia equipments of the invention without synchronizing clock signals distance-finding method.

Accompanying drawing 2 show gesture identification process of the invention, and multimedia equipment sonic generator and sound wave connect in figure Receive device distance closely.

Accompanying drawing 3 is the schematic diagram of gesture identification process in accompanying drawing 2.

Accompanying drawing 4 show gesture identification process of the invention, and multimedia equipment sonic generator and sound wave connect in figure Receive that device is distant cannot ignore.

Accompanying drawing 5 show gesture identification process of the invention, and multimedia equipment sonic generator and sound wave connect in figure Equivalent geometric graph when receipts device is distant.

Specific embodiment

Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.

Embodiment one

Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave of the invention, for interactive space Many interior multimedia equipments carry out gesture interaction control, and multimedia equipment includes portable set and fixed apparatus, sound wave Generator uses loudspeaker, acoustic receiver to use microphone.It is many that multiple multimedia equipments can recognize that same gesture is realized Shield the interaction of display, such as pair of pages is browsed, equipment room file is transmitted, play, 3D takes pictures, function of transferring accounts.For example, pair of pages is browsed being Two multimedia equipments are closely placed, and copy the reading of papery books, and an equipment shows the recto of books, an equipment The verso of books is shown, page turning is carried out after gesture identification, be similar to papery books.

Each multimedia equipment is respectively positioned in same plane, and every multimedia equipment is respectively provided with sonic generator, sound wave and connects Device and unique ID codings are received, ID codings include geocoding or ultrasound coding or equipment user's title, each equipment Between can communicate wirelessly or wire communication, sonic generator is used for sound wave, and acoustic receiver is used to receive sound Ripple.This method comprises the following steps.

Main equipment verification step, multimedia equipment is constantly in generation ultrasonic wave and receives ultrasonic wave state during work, Comprising information such as ID signals in the ultrasonic wave.When two or more multimedia equipments, wherein one used as main equipment, its He is used as slave unit.

Slave unit finds step, and main equipment searches slave unit, searches signal by the acoustic signals that sonic generator is produced Frequency with agreement, or amplitude, or the transmission number of cycles arranged, or the transmission time interval arranged.The sound wave Command signal and framing signal are contained, the ID of slave unit is contained in command signal again, it is desirable to which the slave unit of the ID is surveyed Away from.When the acoustic receiver of slave unit receives the signal, identify in the acoustic signals comprising the machine ID, after having processed again Confirmation signal is produced to reply main equipment by the sonic generator by slave unit the signal, if slave unit is wrapped in receiving sound wave The ID for containing is not the machine ID, then need not process the signal.Main equipment by sound wave send with receive Time Calculation slave unit away from From when when preset distance is reached, the distance of equipment room is 0 ~ 0.5 meter in this patent, now between main equipment and slave unit Network successfully, the safety measures such as password can be set during equipment network, to ensure that into the net be designated equipment.Afterwards by with Family selection needs the application program for starting, and such as pair of pages is browsed, transferred accounts, playing, taking pictures, equipment room file is transmitted, then many matchmakers Body equipment enters gesture identification state.

Gesture identification step, the acoustic signals that the sonic generator of main equipment is produced are by the reflection of gesture object by from setting Standby to receive, equally, the sound wave contains command signal and framing signal, and the ID of slave unit, slave unit are contained in command signal Dissection process is carried out after receiving the signal, it is that the slave unit of the machine address launches the acoustic signals to parse, then is passed through The reflection for crossing gesture object returns to the acoustic receiver of main equipment, and it is gesture object hanging down to multimedia equipment interplanar to define h Straight distance, definition X is distance of the main equipment gesture object in one's hands between subpoint in multimedia equipment plane, by between certain hour Every sampling, gesture object of which movement type is obtained by the variation tendency for judging numerical value h and X.

Instruction response of step, main equipment is with slave unit according to the gesture object of which movement type and data arranged in application program Process instruction corresponding relation performs corresponding operation.

Referring to shown in accompanying drawing 1, being the distance between equipment 1 and equipment 2 measuring method, equipment 1 sends ultrasonic wave, when passing through Between after T, equipment 2 receives the ultrasonic wave, then by beaming back equipment 1 after the treatment of T time again, elapsed-time standards is still T, T The time experienced when processing acoustic signals by equipment 2, the time can be drawn by detection, then between equipment 1 and equipment 2 Distance and time(2T-∆T)/ 2 are directly proportional, and the distance is labeled as constant a, because the clock of many multimedia equipments is difficult together Step, therefore use without the synchronous distance-finding method of clock.

Referring to shown in accompanying drawing 2, sonic generator and when being smaller than predetermined value of acoustic receiver when multimedia equipment, The distance values are ignored and disregard, and 200 is main equipment, and 201 is the sonic generator and acoustic receiver of main equipment, 300 be from Equipment, 301 is the sonic generator and acoustic receiver of slave unit, and D is sound wave in palmar point.Main equipment sends ultrasound Ripple, after being reflected through palm, the acoustic receiver of main equipment and the acoustic receiver of slave unit can receive the sound wave.Set based on L1 The standby distance to gesture object, L2 is distance of the slave unit to gesture object, and a is the distance between equipment.

The time that main equipment sends the acoustic receiver for reflecting back into main equipment through gesture object after sound wave is T3, obtains sound The distance of ripple correspondence walking is L ', then have L1=L '/2.

It is T1, slave unit warp that main equipment sends the time reflexed to up to the ripple receiver of slave unit through gesture object after sound wave Cross T time treatment after send sound wave through gesture object reflex to up to main equipment acoustic receiver receive time be T2, T1= T2, the distance can basis(T1+T2--∆T)It is L to obtain sound wave correspondence travel distance, then have L2=L/2-L1.

Referring to shown in accompanying drawing 3, as shown in figure 3, when palm is moved, h is vertical range of the pip to plane where equipment. X for equipment 200 sonic generator to vertical point distance, by Fig. 1 can obtain equipment 1 to equipment 2 horizontal range be a, Then have as follows:X2+h2=L12 and (a-x) 2+h2=L22, wherein known is a, L ', L, can obtain the value of h, X, with gesture The movement of object, the change according to L and h may determine that type and the direction of gesture.

During this patent multimedia linkage ultrasound identification gesture, the distance between multimedia equipment is no more than 0.5 meter.I.e. a is less than Or equal to 0.5, because the distance of the recognizable gesture of ultrasonic wave is 0.5 meter, then 0≤x≤0.5, during hand is moved, with certain Time interval, h and X are calculated.

When h is varied less, and X is changed greatly, the curve of L is a parabola, and as x=a/2, L values are minimum:

When the value of X increases, it is possible to determine that hand is moved by the direction of equipment 200 to equipment 300;

When the value of X reduces, it is possible to determine that hand is moved by the direction of equipment 300 to equipment 200.

When h changes very greatly, when X changes are smaller:

When the value of h increases, it is possible to determine that gesture is perpendicular to equipment 200 and the direction of the place plane of equipment 300 is moved upwards It is dynamic;

When the value of X reduces, it is possible to determine that gesture is perpendicular to the direction of equipment 200 and the place plane of equipment 300 to moving down It is dynamic.

Embodiment two

As shown in figure 4, as the deformation of situation in embodiment one, when multimedia ultrasonic receiver and ultrasonic wave occur When device is distant, the distance between acoustic receiver and sonic generator d be, it is known that two distances of multimedia equipment are a, A can be calculated.The ultrasonic signal that main equipment 400 sends is solid line, and the ultrasonic signal that slave unit 500 sends is void Line, and the ultrasonic wave that sends of sonic generator 402 of main equipment 400 also can be by the acoustic receiver of main equipment after palmar 401 receive, and the ultrasonic signal that the sonic generator 502 of slave unit 500 sends also can be by the sound of slave unit after palmar Ripple receiver 501 is received.L1 ' is distance of the equipment 402 to palmar point, and L2 ' is the distance of palmar o'clock to 501, L3 ' For 502 to the distance of palmar point, L4 ' be 501 to palmar point distances, h is flat where multimedia equipment to reflex to The distance in face, x is the sonic generator of equipment 400 to the distance of vertical point.Can be obtained with the time difference is received by acoustic emission L1 ', L2 ', L3 ', the numerical value of L4 ', equivalent geometric graph as shown in figure 5, be a centrum for parallelogram, L1 ', L2 ', L3 ', L4 ', a, d is, it is known that then centrum is unique, and pip can be obtained to the vertical h ' of distance of multimedia equipment place plane Arrive, the value of x ' can be obtained in right angled triangle, gesture object 600 is obtained by the variation tendency for judging numerical value h ' and x ' Type of sports, according to the agreement in the Application Software Program, performs the operation of agreement, and such as each equipment carries out page turning, slides simultaneously Deng operation.

Embodiment of above technology design and feature only to illustrate the invention, technique is familiar with its object is to allow People understands present disclosure and is carried out, and it is not intended to limit the scope of the present invention, all according to spirit of the invention The equivalent change or modification that essence is done, should all cover in protection scope of the present invention.

Claims (8)

1. a kind of same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave, in interactive space extremely Few two multimedia equipments carry out gesture interaction control, it is characterised in that:Multimedia equipment described in every is respectively provided with sound wave hair Raw device, acoustic receiver and unique ID are encoded, and each multimedia equipment is respectively positioned in same plane, and the method includes Following steps:
S1:Main equipment verification step, wherein a multimedia equipment is defined as main equipment, others are defined as slave unit;
S2:Slave unit finds step, the acoustic signals lookup slave unit that described main equipment is produced by sonic generator, when from When the acoustic receiver of equipment receives the signal, confirmation signal is produced to reply main equipment by the sonic generator of slave unit, Main equipment sends the distance with reception Time Calculation slave unit by sound wave, when predetermined close to reaching between main equipment and slave unit Apart from when carry out networking, afterwards by user selection need start application program;
S3:Gesture identification step, the acoustic signals that the sonic generator of described main equipment is produced by gesture object reflection Received by slave unit, described slave unit carries out dissection process after receiving the signal, parse be the machine address slave unit The acoustic signals are launched, then by the acoustic receiver for returning to main equipment that reflects of gesture object, definition h is gesture thing Body defines X for main equipment gesture object in one's hands is projected in multimedia equipment plane to the vertical range of multimedia equipment interplanar Distance between point, gesture object of which movement type is obtained by the variation tendency for judging numerical value h and X;
S4:Instruction response of step, main equipment is with slave unit according to the gesture object of which movement type and data arranged in application program Process instruction corresponding relation performs corresponding operation.
2. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:In described step S2, first party sends what the ID with the equipment was encoded by sonic generator first during positioning Framing signal, after elapsed time T, second party receives the framing signal with ID codings and at place by signal receiver The framing signal that will be received by sonic generator after reason time T is sent to first party, and elapsed-time standards is still T, is passed through Propagation time(2T-∆T)/ 2 calculate the distance between both devices a.
3. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 2, it is special Levy and be:In described step S3, sonic generator and when being smaller than predetermined value of acoustic receiver when multimedia equipment, The distance values are ignored and disregard, and L1 is the distance of main equipment gesture object in one's hands, and L2 is distance of the slave unit to gesture object, a It is the distance between equipment, wherein:
The time that main equipment sends the acoustic receiver for reflecting back into main equipment through gesture object after sound wave is T3, obtains sound wave pair The distance that should be walked is L ', then have L1=L '/2;
It is T1 that main equipment sends the time reflexed to up to the ripple receiver of slave unit through gesture object after sound wave, and slave unit is passed through Sound wave is sent after T time treatment and reflexes to the time received up to the acoustic receiver of main equipment for T2 through gesture object, according to(T1 +T2--∆T)It is L to obtain sound wave correspondence travel distance, then have L2=L/2-L1;
According to x2+h2=L12 and (a-x) 2+h2=L22, the value of h, X is obtained, with the movement of gesture object, by judging numerical value h Variation tendency with X obtains gesture object of which movement type:
When the value of X increases, judge that gesture object is moved to close to the direction of slave unit;
When the value of X reduces, judge that gesture object is moved to close to the direction of main equipment;
When the value of h increases, judge that gesture object is moved to the direction away from plane where main equipment and slave unit;
When the value of h reduces, judge that gesture object is moved to close to the direction of plane where main equipment and slave unit.
4. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:Described ID codings include geocoding or ultrasound coding or equipment user's title.
5. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:Described sonic generator includes loudspeaker, and described acoustic receiver includes microphone.
6. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:When preset distance is reached, main equipment carries out identity and tests to the slave unit for increasing newly between main equipment and slave unit Card carries out networking after passing through.
7. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:When main equipment searches slave unit, searching signal has the frequency of agreement, or amplitude, or the transmission cycle arranged Number, or the transmission time interval arranged.
8. the same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave according to claim 1, it is special Levy and be:Data transfer between multimedia equipment is realized by cable network or wireless network.
CN201510012383.9A 2015-01-12 2015-01-12 Same plane inner multimedia equipment room gesture interaction method based on ultrasonic wave CN104536576B (en)

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CN107592402A (en) * 2016-07-06 2018-01-16 北京小米移动软件有限公司 A kind of method and apparatus of shooting image
CN107261498A (en) * 2017-06-08 2017-10-20 深圳市乃斯网络科技有限公司 Game control method and system of the terminal based on gesture

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