CN109635665A - A kind of electric appliance gestural control method, device and kitchen appliance - Google Patents
A kind of electric appliance gestural control method, device and kitchen appliance Download PDFInfo
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- CN109635665A CN109635665A CN201811366012.0A CN201811366012A CN109635665A CN 109635665 A CN109635665 A CN 109635665A CN 201811366012 A CN201811366012 A CN 201811366012A CN 109635665 A CN109635665 A CN 109635665A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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Abstract
The present invention relates to a kind of electric appliance gestural control method, device and kitchen appliance, a kind of electric appliance gestural control method of the invention, comprising the following steps: obtain the original image comprising hand and ambient enviroment；Binary conversion treatment is carried out to original image, to obtain the black white image for including hand images；The center of hand images is calculated, and hand exercise track is calculated according to the variation of center；Corresponding control signal is generated according to hand exercise track.Implementing the present invention can be realized through non-contacting control mode instead of traditional knob, key, touch screen etc., can reduce contact stain, improve electric appliance service life.
Description
Technical field
The present invention relates to technical field of kitchen appliance control, more specifically to a kind of electric appliance gestural control method, dress
It sets and kitchen appliance.
Background technique
Current many electric appliances be all controlled using the way of contact, and contact inevitably result in key is generated it is various each
The pollution of sample.Here most common for example traditional kitchen appliance, use environment are greasy environment, and people is in use process hand
Also it has more greasy, while in machine for kitchen use use process, needs frequently to operate the kitchen appliance, operate
In the process, greasy hand multiple-contact can be such that keytop is contaminated, it is easy to make keytop generate accumulation greasy dirt, very
Hardly possible cleaning.Frequently key is operated for a long time simultaneously, keyboard mechanical is be easy to cause to damage.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of electricity for the above-mentioned portion of techniques defect of the prior art
Device gestural control method, device and kitchen appliance.
The technical solution adopted by the present invention to solve the technical problems is: a kind of electric appliance gestural control method is constructed, including
Following steps:
Obtain the original image comprising hand and ambient enviroment；
Binary conversion treatment is carried out to the original image, to obtain the black white image for including hand images；
The center of the hand images is calculated, and hand exercise track is calculated according to the variation of the center；
Corresponding control signal is generated according to the hand exercise track.
Preferably, described that binary conversion treatment is carried out to the original image, to obtain the black and white for including the hand images
Image includes:
Binary conversion treatment is carried out to the original figure, white portion described in the black white image is made to correspond to the hand
Image.
Preferably, described to include: according to the corresponding control signal of hand exercise track generation
When the hand exercise track is that X direction generates first control signal when moving；And/or
When the hand exercise track is that y direction generates second control signal when moving；And/or
Third is generated when the hand exercise track is rotary motion controls signal.
Preferably, described to include: according to the corresponding control signal of hand exercise track generation
The distance for obtaining the hand exercise track generates the corresponding control signal for continuous trigger；Or
The corresponding control signal for single triggering is generated according to the hand exercise track.
Preferably, the method also includes:
According to the hand exercise trajectory calculation movement velocity of hand, to confirm the movement velocity of hand in preset threshold
In range.
Preferably, the method also includes:
When the movement velocity of hand is not in the preset threshold range, then judge the hand exercise for invalid fortune
It is dynamic, prompt for invalid action.
In addition, the present invention also constructs a kind of gesture control device, comprising: image acquisition unit, image processing unit, gesture are sentenced
Disconnected unit and gesture control unit；
Described image acquiring unit is used to obtain the original image comprising hand and ambient enviroment；
Described image processing unit is used to carry out binary conversion treatment to the original image, to obtain comprising hand images
Black white image；
The gesture judging unit is used to calculate the center of the hand images, and according to the change of the center
Change and calculates hand exercise track；
The gesture control unit is used to generate corresponding control signal according to the hand exercise track.
Preferably, a kind of gesture control device of the invention, further includes judging unit, and the judging unit is used for according to institute
Hand exercise trajectory calculation movement velocity of hand is stated, to confirm the movement velocity of hand in preset threshold range；And/or
Described image acquiring unit includes light source, optical lens and photosensitive unit, and the photosensitive unit is used for through the light
It learns camera lens and receives light of the light source after hand reflects, form the original image.
In addition, the present invention also constructs a kind of kitchen appliance of gesture control, including, gesture control described in any of the above one
Device, and controlled using electric appliance gestural control method described in any of the above one.
Preferably, the kitchen appliance includes cook's machine, coffee machine, oven, kitchen ventilator, dish-washing machine or water heater.
Implement a kind of electric appliance gestural control method, device and kitchen appliance of the invention, has the advantages that and pass through
Non-contacting control mode replaces traditional knob, key, touch screen etc., can reduce contact stain, improve the use of electric appliance
Service life.It is able to ascend ease of use simultaneously, meets Intelligent Developing Trends.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is a kind of program flow diagram of electric appliance gestural control method first embodiment of the present invention；
Fig. 2 is a kind of program flow diagram of electric appliance gestural control method second embodiment of the present invention；
Fig. 3 is a kind of circuit diagram of electric appliance gesture control device first embodiment of the present invention；
Fig. 4 is a kind of circuit diagram of electric appliance gesture control device second embodiment of the present invention.
Specific implementation method
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
Specific implementation method of the invention.
As shown in Figure 1, in a kind of electric appliance gestural control method first embodiment of the invention, comprising the following steps:
S1, the original image comprising hand and ambient enviroment is obtained；Specifically, when hand is when induction region is mobile, even
The continuous corresponding image of acquisition induction zone, image here are multiple original images for including hand and induction zone ambient enviroment,
Its acquisition process is also continuously to be obtained according to preset time rule, and quantity is configured according to specific situation of movement.
S2, binary conversion treatment is carried out to original image, to obtain the black white image for including hand images；Specifically, to obtaining
Multiple original images got carry out binary conversion treatment respectively, carry out black whitening processing to its pixel, and material is thus formed can be with
The black white image of hand images and ambient enviroment image is distinguished, to facilitate extraction hand images.
S3, the center for calculating hand images, and hand exercise track is calculated according to the variation of center；Specifically
, according to the hand images got, the center of hand images is calculated, according to the center of the hand of multiple images
Variation can obtain the motion profile of hand.
S4, corresponding control signal is generated according to hand exercise track.Specifically, by the motion profile of hand to hand
Motion information determined, such as the direction of motion of hand, in this manner it is possible to be generated according to the difference of the direction of motion different
Signal is controlled, realizes the corresponding control to electric appliance.The final Untouched control realized to electric appliance, is reduced to the various of electric appliance
When the contact pollution of button and mechanical operation, bring mechanical wear is reduced since button or key damage are brought
Electric appliance service life reduce.It is also able to ascend ease of use simultaneously, meets Intelligent Developing Trends, additionally, due to the gesture
Recognizer does not need to need the operation image on the platform of tape operation system to handle journey as traditional Gesture Recognition Algorithm
Low cost, low-power consumption may be implemented in sequence.
Further, binary conversion treatment is carried out to original image, includes: pair to obtain the black white image comprising hand images
Original figure carries out binary conversion treatment, and white portion in black white image is made to correspond to hand images.Specifically, passing through binaryzation here
Processing obtains the process of black white image, can carry out black processes pixel, opponent using the image to environment division in original image
Portion's image carries out white pixel processing, here specifically can be by the way that some RGB or HSV threshold value is arranged to hand image pixel and ring
Border image image pixel distinguishes, corresponding with hand images to obtain white portion in black white image, subsequent hand letter
The calculating of breath can be calculated based on white portion.
Further, corresponding control signal is generated according to hand exercise track, may include when hand exercise track is
X direction generates first control signal when moving；It can also include generating the when hand exercise track is y direction movement
Two control signals；It can also include generating third when hand exercise track is rotary motion to control signal.It is of course also possible to wrap
Include above-mentioned three kinds any combination.Specifically, in one embodiment, determining that hand is X direction when passing through hand exercise track
When movement, first control signal can be generated, electric appliance corresponds to first state of a control, for example, when gesture is (right to move left and right
Answer X direction) when, it can be using control status as regulating time, first control signal corresponds to time control signal, Ke Yili
Solution when moving in the lateral direction, corresponds to time reduction when can set left direction movement, corresponding when right direction moves
Time increases.In one embodiment, when determining that hand moves for y direction by hand exercise track, it can be generated second
Control signal, second state of a control of corresponding electric appliance can be with for example, when gesture is when moving up and down (correspondence y direction)
Control status is to adjust temperature, second control signal corresponding temperature adjustment signal.It is further appreciated that transporting in the up-down direction
When dynamic, corresponding temperature when moving upwards can be set and increased, corresponding temperature reduces when moving downward.In one embodiment,
When determining hand by hand exercise track for rotary motion, third control signal, the third of corresponding electric appliance can be generated
State of a control, for example, can be to adjust revolving speed with control status, third control signal corresponds to revolving speed when the rotation of gesture
Adjustment signal, it is to be further understood that when rotated, corresponding revolving speed when rotating clockwise can be set and increased, revolved counterclockwise
Turn constantly corresponding revolving speed to reduce.Here it is not limited to the above-mentioned limitation to working condition to illustrate, it is each to can according to need progress
Kind combined displacement and adjustment.
Further, generating corresponding control signal according to hand exercise track may include obtaining hand exercise track
Distance generates the corresponding control signal for continuous trigger；It can also include that corresponding be used for is generated according to hand exercise track
The control signal of single triggering.Specifically, in one embodiment, in the process for generating control signal according to hand exercise track
In, it is available that hand exercise distance is obtained by hand exercise track, it can be generated and the control apart from corresponding continuous trigger
Signal processed, for example, when horizontally slip hand when, according to hand sliding apart from size come the acknowledging time amplitude of accommodation, with to the right
For sliding, in sliding process, continuously adjusted according to distance, when the distance of confirmation sliding is a long range,
Time adjustment amplitude is big, such as continuously adjusts two or three gears, when sliding distance in short-term, time adjustment amplitude is small,
Such as only adjust a gear.In another embodiment, it during generating control signal according to hand exercise track, only needs
The course bearing of hand exercise is judged, after confirming its direction of motion, generate the adjustment signal of a fixed gear, example
Such as, during horizontally slipping, or for sliding to the right, when determining hand is to slide to the right, a gear is generated
Time control signal, until adjusting a gear can repeatedly slide to the right when needing to adjust multiple gears, it is sliding every time
The dynamic control signal for all generating the triggering of a single.
Further, as shown in Fig. 2, on the basis of above, a kind of electric appliance gestural control method of the invention further include:
S31, according to hand exercise trajectory calculation movement velocity of hand, to confirm movement velocity of hand in preset threshold range
It is interior.Specifically, the calculating in some usage scenarios, in order to guarantee the Stability and veracity of control, in hand exercise track
In the process, increase the calculating to the validity of hand motion profile, for example, can be according to hand exercise trajectory calculation hand exercise
Speed determines that the hand exercise is the hand exercise for carrying out electrical equipment control by movement velocity of hand, because usually having
The control of consciousness, hand exercise is necessarily regular or close at the uniform velocity, and the duration is also to meet certain requirements,
Here a preset threshold may be set according to actual conditions, movement velocity of hand then can be determined that hand in the preset threshold
Portion is to do control gesture, then generates corresponding control signal, when excessive velocities or excessively slow, then may be invalid dynamic
Make, in this way to reject maloperation, improves the accuracy of gesture control.In addition, here in velocity computation process, it is also considered that the time
Factor, the hand exercise track in an effective time is calculated, to obtain corresponding speed, to obtain speed at the uniform velocity as far as possible
Degree improves the accuracy of gesture judgement.
Further, on the basis of above, a kind of electric appliance method of the invention further include: when movement velocity of hand does not exist
In preset threshold range, then judge that hand exercise for lost motion, prompts for invalid action.Specifically, when being judged to transporting in vain
When dynamic, invalid action can be prompted for by prompting interface, or prompt by especial sound, naturally it is also possible to not do any anti-
It answers.
In addition, as shown in figure 3, a kind of gesture control device of the invention, comprising: image acquisition unit 10, image procossing list
Member 20, gesture judging unit 30 and gesture control unit 40；
Image acquisition unit 10 is used to obtain the original image comprising hand and ambient enviroment；
Image processing unit 20 is used to carry out binary conversion treatment to original image, to obtain the artwork master comprising hand images
Picture；
Gesture judging unit 30 is used to calculate the center of hand images, and calculates hand according to the variation of center
Motion profile；
Gesture control unit 40 is used to generate corresponding control signal according to hand exercise track.
Specifically, specific compounding practice process is specifically referred to above-mentioned hand between gesture control device each unit here
Gesture control method, which is not described herein again.
Further, as shown in figure 4, on the basis of above, a kind of gesture control device of the invention further includes judgement
Unit, judging unit are used for according to hand exercise trajectory calculation movement velocity of hand, to confirm movement velocity of hand in default threshold
It is worth in range；In another embodiment, image acquisition unit 10 includes light source 11, optical lens 12 and photosensitive unit 13, photosensitive
Unit 13 is used to receive light of the light source 11 after hand reflects, the original image of formation through optical lens 12.Specifically, here
The compounding practice process of judging unit is specifically referred to above-mentioned gestural control method, and which is not described herein again.Here image obtains
Unit 10 can reflection by the light that light source 10 issues through receiving and distributing across optical lens 12 in such as CMOS core of photosensitive unit 13
On piece forms image, and the realtime graphic is by finally exporting corresponding control signal after each unit processing thereafter.Here
Light source 10 can use infrared light supply, and by draw above as the design of acquiring unit, whole image Processing Algorithm is without operation
On the platform for having operating system, cost and power consumption are all relatively low, and the cost control that can be good at meeting kitchen appliance is wanted
It asks.
In addition, a kind of kitchen appliance of gesture control of the invention, including, any of the above one gesture control device, and
It is controlled using any of the above one electric appliance gestural control method.Specifically, by being retouched above being arranged on kitchen appliance
Then the gesture control device stated carries out control operation by pad hand gestural control method described above.
Further, kitchen appliance includes cook's machine, coffee machine, oven, kitchen ventilator, dish-washing machine or water heater.Specifically,
Here kitchen appliance may include various common kitchen appliances, be not limited to above-mentioned citing here, control signal root here
Different control signals is generated according to the different attribute of kitchen appliance.
In cook's machine embodiment, region setting infrared light supply, optical lens and the CMOS of cook machine face user
Sensitive chip, light source and optical lens face photosensitive region.When manpower is when photosensitive region is mobile, infrared light supply can issue red
Outer light, infrared light enter the original image of the photosensitive formation of CMOS sensitive chip after hand reflects by optical lens.This Rigen
According to preset speed, hand on the move is captured, obtains multiple original images.Here original image sometimes wraps
Hand images are included, many times can include portion ambient image, the original image of formation can be sent by CMOS sensitive chip
Processor connected to it carries out binary conversion treatment to original image by processor, carries out black and white processing to pixel, here may be used
Pixel two-value relevant to hand is turned to white pixel according to the color characteristic of hand, environmental colors two-value is turned to black
Color color can just carry out single treatment here with one original image of every capture, can also be right after having captured all images
Image carries out preliminary judgement, extracts the image wherein to meet certain requirements and carries out binary conversion treatment, to use least image
The motion profile of hand can be got.After getting hand images, the center of hand images is calculated, then according to hand
The variation of the center in portion calculates the track of hand exercise.Then cook's machine is controlled according to hand exercise, when hand or so
When mobile, every movement is primary, and cook's machine just adjusts a time, moves right primary, and one gear of time increase is arranged in cook's machine,
Such as 0.5h.Hand moves right since the left side once again, and cook's machine setting time is further added by a gear, such as 0.5h,
Here the time increase number be not it is unlimited, when increasing to the maximum time limit of cook's machine, when moving right again, cook
The machine time is constant to be simultaneously emitted by prompt alarm sound.When hand is one time mobile toward the left side since the right, the time is arranged in cook's machine
When reducing a gear, such as 0.5h, then moving one time from the right toward the left side, the time can reduce a gear, such as 0.5h again.
When the minimum value of time setting to cook's machine, again from right toward when moving left, cook's machine time is constant to be simultaneously emitted by prompt alarm
Sound.Likewise, every movement is primary when hand moves from the bottom up, temperature rises a gear, such as 100 degree.When temperature is more than
When maximum value, when hand moves again from the bottom up, cook's machine is temperature-resistant, is simultaneously emitted by prompt alarm sound, when user hand from
On move down, every movement is primary, and temperature declines a gear, such as 100 degree, when temperature is more than minimum, hand is from upper past
Lower movement, cook's machine is temperature-resistant, is simultaneously emitted by prompt alarm sound.User's hand makes rotating motion to control cook's machine and turn
Speed, when user's hand rotates clockwise, for each revolution, revolving speed increases a grade, when increasing to maximum (top) speed, kitchen
Teacher's machine revolving speed is not further added by, while can issue prompt alarm sound, when user's hand rotates counterclockwise, is often rotated a circle,
Revolving speed reduces a grade, and when revolving speed is reduced to minimum speed, initial speed is no longer reduced, while can issue prompt alarm sound
Sound.Here, judgement of cook's machine to user's hand moving in rotation does not need a completely full circle week, is turned by user's hand
Dynamic speed and habit obtain hand images in the range of one close to full circumferences to judge that the hand of user is doing timing
Needle or counterclockwise movement.
In the embodiment of kitchen ventilator, photosensitive area is set in the region in face of user of kitchen ventilator, for obtaining user hand
The mobile image in portion, and setting image processing circuit carries out corresponding image procossing inside it, obtains corresponding control signal.
Such as can by left and right gesture control kitchen ventilator switch, when gesture moves right, kitchen ventilator booting, when gesture to the left
When mobile, kitchen ventilator shutdown.The switch that the headlamp of kitchen ventilator can be controlled by upper and lower gesture, when gesture moves up
When, headlamp is opened, and when gesture moves down, headlamp is closed.The size of exhausting, up time can also be controlled by rotation gesture
When needle rotates, exhausting revolving speed increases, and when rotation counterclockwise, exhausting revolving speed is reduced, here when adjusting exhausting size, Ke Yitong
It crosses multiple timing needle perhaps to rotate counterclockwise to be adjusted when adjusting to maximum or minimum exhausting size, adjust again
When, exhausting size will not be adjusted again, and kitchen ventilator makes a sound alarm.
It should be understood that above embodiments only express preferred implementation method of the invention, description is more specific and detailed
Carefully, but it cannot be understood as limitations on the scope of the patent of the present invention；It should be pointed out that for the common skill of this field
For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also be done
Several modifications and improvements out, these are all within the scope of protection of the present invention；Therefore, all to be done with scope of the invention as claimed
Equivalents and modification, should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of electric appliance gestural control method, which comprises the following steps:
Obtain the original image comprising hand and ambient enviroment；
Binary conversion treatment is carried out to the original image, to obtain the black white image for including hand images；
The center of the hand images is calculated, and hand exercise track is calculated according to the variation of the center；
Corresponding control signal is generated according to the hand exercise track.
2. electric appliance gestural control method according to claim 1, which is characterized in that described to carry out two to the original image
Value processing, the black white image with acquisition comprising the hand images include:
Binary conversion treatment is carried out to the original figure, white portion described in the black white image is made to correspond to the hand figure
Picture.
3. electric appliance gestural control method according to claim 1, which is characterized in that described according to the hand exercise track
Generating corresponding control signal includes:
When the hand exercise track is that X direction generates first control signal when moving；And/or
When the hand exercise track is that y direction generates second control signal when moving；And/or
Third is generated when the hand exercise track is rotary motion controls signal.
4. electric appliance gestural control method according to claim 1, which is characterized in that described according to the hand exercise track
Generating corresponding control signal includes:
The distance for obtaining the hand exercise track generates the corresponding control signal for continuous trigger；Or
The corresponding control signal for single triggering is generated according to the hand exercise track.
5. electric appliance gestural control method according to claim 1, which is characterized in that the method also includes:
According to the hand exercise trajectory calculation movement velocity of hand, to confirm the movement velocity of hand in preset threshold range
It is interior.
6. electric appliance gestural control method according to claim 5, which is characterized in that the method also includes:
When the movement velocity of hand is not in the preset threshold range, then judge that the hand exercise for lost motion, mentions
It is shown as invalid action.
7. a kind of gesture control device characterized by comprising image acquisition unit, image processing unit, gesture judging unit
With gesture control unit；
Described image acquiring unit is used to obtain the original image comprising hand and ambient enviroment；
Described image processing unit is used to carry out binary conversion treatment to the original image, to obtain the black and white comprising hand images
Image；
The gesture judging unit is used to calculate the center of the hand images, and according to the variation meter of the center
Calculate hand exercise track；
The gesture control unit is used to generate corresponding control signal according to the hand exercise track.
8. gesture control device according to claim 7, which is characterized in that it further include judging unit, the judging unit
For according to the hand exercise trajectory calculation movement velocity of hand, to confirm the movement velocity of hand in preset threshold range
It is interior；And/or
Described image acquiring unit includes light source, optical lens and photosensitive unit, and the photosensitive unit is used for through the optical frames
Head receives light of the light source after hand reflects, and forms the original image.
9. a kind of kitchen appliance of gesture control, which is characterized in that including gesture control described in claim 7-8 any one
Device processed, and controlled using electric appliance gestural control method as claimed in any one of claims 1 to 6.
10. the kitchen appliance of gesture control according to claim 9, which is characterized in that the kitchen appliance includes cook
Machine, coffee machine, oven, kitchen ventilator, dish-washing machine or water heater.
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| CN110096212A (en) * | 2019-04-30 | 2019-08-06 | 广东美的厨房电器制造有限公司 | The control method and household electrical appliance of household electrical appliance |
| CN110989834A (en) * | 2019-11-26 | 2020-04-10 | 广东美的厨房电器制造有限公司 | Cooking equipment and gesture control method thereof |
| CN111895473A (en) * | 2020-09-04 | 2020-11-06 | 珠海格力电器股份有限公司 | Range hood control method, device and equipment and range hood system |
| CN111981537A (en) * | 2020-08-14 | 2020-11-24 | 华帝股份有限公司 | Self-adaptive control method of non-contact range hood |
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