CN108984042A - A kind of contactless control device, signal processing method and its household electrical appliance - Google Patents
A kind of contactless control device, signal processing method and its household electrical appliance Download PDFInfo
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- CN108984042A CN108984042A CN201710414202.4A CN201710414202A CN108984042A CN 108984042 A CN108984042 A CN 108984042A CN 201710414202 A CN201710414202 A CN 201710414202A CN 108984042 A CN108984042 A CN 108984042A
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- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000004044 response Effects 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims description 46
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000012937 correction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000006870 function Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
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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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a kind of contactless control device, signal processing method and its household electrical appliance, contactless control device includes control unit, it further include the projection arrangement and light signal receiving being electrically connected with control unit respectively, projection arrangement will show that content projects Projection Display operating area, projection arrangement is incident upon the corresponding output signal of the output of the light conditions in Projection Display operating area to light signal receiving based on the received, and control unit identifies the operational order of user according to the change of output signal and responds.Contactless control device of the invention is using the method for identifying user's operation behavior by the operating area light transmission situation for detecting Projection Display, not needing to touch operating surface can be realized operation detection, avoiding on hand has signal in the case of water bad, entity touch operation can not normal response the occurrence of, the operating experience of user is enhanced, safety, the reliability of control operation are improved.
Description
Technical field
The invention belongs to the operation display fields of household appliance technical field, especially household electrical appliance, specifically, being related to one kind
Contactless control device, signal processing method and household electrical appliance more particularly relate to have washing for contactless operation device
Clothing machine.
Background technique
Usually there is complicated operating surface on the household electrical appliance such as current washing machine, dish-washing machine, refrigerator, kitchen ventilator and kitchen range
Plate, operating device are generally control button or touch control device, such as touch membrane, touch screen, and user needs to be operated with hand
Button touches screen etc. to be operated, that is, needs material contact.Go down when have water in user hand the case where entity
It is inconvenient for operation when touch operation display screen or function button；Especially touch screen, touch key-press class, are influenced by water, operation
By often cannot respond to；Or the operating surface of touch membrane by signal interference when, the operation of user will also be difficult to detect, there is touch
Bad problem, affects user experience.
Application No. is the Chinese patents of CN201620766487.9 to disclose a kind of laundry with Projection Display and operation
Machine, the washing machine include washing machine top case, wherein washing machine top case include middle part transparent cover plate, edge upper cover frame and
Projection imaging mechanism, transparent cover plate are equipped with projected area, and upper cover frame is equipped with operation display area, and the setting of projection imaging mechanism exists
The inside of the washing machine top case, and be located at below the projected area and the operation display area.Touching is equipped in operation display area
Touch display screen.Although the program by the way of projection, eliminates complicated operation panel, but still uses touch display screen,
User's touch operation is needed, when having water in user hand, operates susceptible.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide for the non-contact of household electrical appliance
The washing machine of formula control device, signal processing method and household electrical appliance, especially non-touch operation.Of the invention is contactless
Control device, come the method for identifying user's operation behavior, is not needed using the light transmission situation by detecting Projection Display operating area
Touching operating surface can be realized operation detection, avoid on hand in the case of having water or when operating surface is by signal interference, entity touching
Touch operation can not normal response the occurrence of, enhance the operating experience of user, also substantially increase control operation safety
Property, reliability.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
The first object of the present invention is to provide the contactless control device for household electrical appliance, including control unit, also
Including the projection arrangement and light signal receiving being electrically connected with control unit respectively, projection arrangement will show that content projects
Shadow display operation region, projection arrangement is incident upon the light in Projection Display operating area to light signal receiving based on the received
Situation exports corresponding output signal, and control unit identifies the operational order of user according to the change of output signal and makes sound
It answers.
Further embodiment, the projected display region are transmission region, projection arrangement and light signal receiving position
The two sides of plane where Projection Display operating area, the light signal receiving is based on the received transmitted through Projection Display
The case where transmitted ray of operating area, exports corresponding output signal, and is transmitted to control unit.
Further embodiment, multiple operating positions are equipped in the Projection Display operating area, and projection arrangement each will be shown
Show that content correspondence is incident upon each operating position；User blocks when operating position operates and is completely or partially irradiated to the operative position
The light set, change light signal receiving receives the light conditions transmitted through the operating position, to export different output
Signal.
Further embodiment, the light signal receiving are multiple light sensitive components, and light sensitive component and Projection Display are grasped
The operating position made in region is arranged in a one-to-one correspondence, to receive the transmitted ray for penetrating the operating position.
The second object of the present invention is to provide a kind of as described above for the contactless control device of household electrical appliance
Signal processing method, control unit passes through the change for judging the signal value of output signal of light signal receiving, to identify use
The operational order at family simultaneously responds.
Further embodiment, the signal value for the output signal that control unit transmits each light sensitive component being an actually-received
X is compared with preset standard value N, when X is less than N, judges that user operates in the operating position, and make sound
It answers.
Further embodiment, after user uses some cycles, standard value N can carry out self calibration, correction using correction parameter K
Parameter K is the ratio of standard value M and standard value N, i.e. K=N/M；
Wherein, when the standard value M is factory, in Projection Display operating area under unobstructed state, control unit
The signal value of the output signal of each light sensitive component transmission received；
When standard value N is factory, when the corresponding operating position of each light sensitive component is blocked half, what control unit received
The signal value of the output signal of each light sensitive component transmission；
Standard value N '=K*M ' after self calibration, standard value M ' are user using after some cycles, are operated in Projection Display
In region under unobstructed state, the signal value of the output signal for each light sensitive component transmission that control unit receives.
Further embodiment, the signal value of the output signal of each light sensitive component transmission of control unit real-time reception, works as letter
Number value variation be greater than original signal value 50% when, judge that user operates in the operating position, and respond.
The third object of the present invention is to provide a kind of household electrical appliance with contactless control device as described above, institute
The household electrical appliance stated include projection arrangement and light signal receiving, projection arrangement and light signal receiving respectively with household electric
The control unit of device connects；Control unit, which controls projection arrangement, will show that content projects Projection Display operating area；Optical signal
Projection arrangement is incident upon the corresponding output letter of the output of the light conditions in Projection Display operating area to reception device based on the received
Number, control unit identifies the operational order of user according to the change of output signal and responds.
Further embodiment, the household electrical appliance are washing machine, and the Projection Display operating area setting is being done washing
The top of machine and/or the top of washing machine, and/or on the observation window of washing machine；
Preferably, the Projection Display operating area is arranged on the transparent door cover of washing machine, and projection arrangement is located at saturating
The outside of bright door closure, light signal receiving are located at the inside of transparent door cover, and the light signal receiving is based on the received
Transmitted through Projection Display operating area transmitted ray the case where export corresponding output signal, and be transmitted to the control list of washing machine
Member is to identify user operation instruction.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
1, the contactless control device for household electrical appliance of the invention is incident upon using by detecting projection arrangement
Light situation of change in shadow display operation region is come the method that identifies user's operation behavior.Control unit can use optical signal
The transmitted ray situation and/or reflection light situation and/or refracted light feelings of reception device detection Projection Display operating area
Condition etc. identifies user's operation behavior according to the variation of light.In this way, user can not need the operation of material contact Projection Display
The operating surface in region, it might even be possible to hanging operation, as long as blocking all or part of light for being irradiated to its operating position in operation
Line, control unit can identify the operation behavior of user, make corresponding response.In this way, in the case of avoiding on hand and having water
Or operating surface by signal interference when, entity touch operation can not normal response the occurrence of, enhance the operating experience of user,
Also safety, the reliability of control operation are substantially increased.
2, contactless control device of the invention identifies use by detecting the light transmission situation of Projection Display operating area
The method of family operation behavior, Projection Display operating area needs are arranged in the material with certain light transmission, and optical signal connects
Receiving apparatus is correspondingly arranged with the operating position in Projection Display operating area, can accurately be identified in each operating position thoroughly
The variation of light situation, and different signals is exported, guarantee the accuracy of identification user's operation.
3, the signal processing method of contactless control device of the invention can at least use two kinds, can both pass through
The mode that the signal value of the output signal of light signal receiving is compared with preset standard value judges that user grasps
Make, and can be judged by the amplitude of variation of the signal value of the output signal of light signal receiving, or can also two
Person, which combines, to be judged, so, it is ensured that judge the accuracy of user's operation position.
4, the household electrical appliance provided by the invention with the contactless control device, especially washing machine wash the dishes
Machine etc., realizes the operation of non-touch, has not only avoided the generation without response condition when material contact operates in the case of water, but also
The area that Projection Display operating area can be set up directly on to household electrical appliance is big, the good position in the visual field, it is only necessary to setting projection
Device and light signal receiving can be not provided with control panel, so that the whole aesthetics for promoting household electrical appliance, can also increase
The interest of strong user's operation experience.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the principle schematic diagram of the contactless control device of present invention detection transmitted light situation；
Fig. 2 is the principle schematic diagram of the contactless control device of present invention detection reflected light situation；
Fig. 3 is a kind of structural schematic diagram of the washing machine of scheme in the embodiment of the present invention four；
Fig. 4 is the structural schematic diagram of the washing machine of another scheme in the embodiment of the present invention four.
In figure: 1 projection arrangement, 2 light signal receivings, 21 light sensitive components, 3 Projection Display operating areas, 4 projection lights
Line, 5 transmitted rays, 6 washing machines, 7 door closures, 9 reflection lights.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The present invention provides a kind of contactless control device for household electrical appliance, including control unit, further includes difference
The projection arrangement 1 and light signal receiving 2 being electrically connected with control unit, it is aobvious that projection arrangement 1 will show that content projects projection
Show operating area 3, projection arrangement is incident upon the light in Projection Display operating area 3 to light signal receiving 2 based on the received
Situation exports corresponding output signal, and control unit identifies the operational order of user according to the change of output signal and makes sound
It answers.
Projection arrangement can be irradiated to throwing by directly projecting, or after being reflected or reflected by reflection or refracting means
Shadow display operation region, first is that the program of household electrical appliance, parameter, function etc. can be shown in Projection Display operating area, second is that
Operation control is carried out wherein for user.Light signal receiving is incident upon Projection Display operating area for receiving projection arrangement
Interior light can receive transmitted ray and/or reflection light etc..And user operates in Projection Display operating area
When setting, finger can block all or part of throw light 4 for being irradiated to the position, influence the light for transmiting or reflecting, from
And the received light conditions of light signal receiving is caused to change, different signals is exported, control unit then can be according to output
The variation identification of signal is judged the operation behavior of user and is responded.In this way, user can not need material contact projection
The operating surface in display operation region, it might even be possible to which hanging operation as long as blocking some or all of certain position light, that is, can reach
Operate the purpose of control.Also avoid when there is water on hand that signal occur bad simultaneously, entity touch operation touches screen
Can not normal response the case where, enhance the operating experience of user.
Embodiment one
As shown in Figure 1, the present embodiment provides a kind of contactless control device for household electrical appliance, including control is single
Member, further includes the projection arrangement 1 and light signal receiving 2 being electrically connected with control unit respectively, and projection arrangement 1 will show content
Project Projection Display operating area 3.Wherein, the projected display region is transmission region, and projection arrangement 1 and optical signal connect
Receiving apparatus 2 is located at the two sides of 3 place plane of Projection Display operating area, and the light signal receiving 2 is saturating based on the received
The case where penetrating transmitted ray 5 of Projection Display operating area 3 exports corresponding output signal, and is transmitted to control unit, control
Unit identifies the operational order of user according to the change of output signal and responds.
The method that the present embodiment identifies user's operation behavior by detection 3 light transmission situation of Projection Display operating area, no
Needing to touch operating surface can be realized operation detection.Projected display region is transmission region, guarantees that projection arrangement 1 is incident upon
Behind shadow display operation region 3, light is transmissive to and mistake, and light signal receiving 2 can be good at receiving the light letter of transmitted light
Number.The two sides of 3 place plane of Projection Display operating area are arranged in projection arrangement 1 and light signal receiving 2, and optical signal receives
Device 2 receives transmitted light, therefore position can be very easily arranged according to Projection Display operating area 3, and projection arrangement 1 can basis
Directly projection or reflective projection determine specific installation site.
When user is when Projection Display operating area 3 carries out operation setting, finger can block all or part of and be irradiated to
The light of the operating position, the transmitted light that light signal receiving 2 receives are reduced, then the signal value of output signal then reduces,
User behavior is identified according to the variation of signal value convenient for control unit.
Further embodiment is equipped with multiple operating positions in the Projection Display operating area 3, and projection arrangement 1 will be each
Display content correspondence is incident upon each operating position；User blocks when operating position operates and is completely or partially irradiated to the operation
The light of position changes light signal receiving 2 and receives light conditions transmitted through the operating position, to export different defeated
Signal out.
Multiple operating positions are preset in Projection Display operating area 3, projection arrangement 1 distinguishes different display contents
Corresponding different operating position is projected.Display content includes but is not limited to the program, parameter, function menu of household electrical appliance.
When user needs to select a certain function or parameter or program, need to be operated in specific operating position, Jin Ergai
The light conditions for becoming the position, cause light signal receiving 2 receive transmitted ray 5 the case where change and export corresponding output
Signal judges the operational order of identification user convenient for control unit.
Further embodiment, the light signal receiving 2 are multiple light sensitive components 21, and light sensitive component 21 and projection are aobvious
Show that the operating position in operating area 3 is arranged in a one-to-one correspondence, to receive the transmitted ray 5 for penetrating the operating position.
Preset multiple operating positions in Projection Display operating area 3, light sensitive component 21 respectively with each operating position
Corresponding, the output signal that light sensitive component 21 issues then represents the variation of the light of its corresponding operating position, therefore, control unit
It can quickly and accurately identify that user is operated in which operating position according to this variation, provide command adapted thereto, protect
The accuracy, sensitivity and reliability of contactless control device are demonstrate,proved.
After control unit receives the output signal that each light sensitive component 21 issues, it is also necessary at each output signal
Reason, can just be accurately judged to the operating position of user.Specific signal processing method is specifically described in example 2.
Embodiment two
As shown in Fig. 2, the difference between this embodiment and the first embodiment lies in, the light signal receiving 2 of the present embodiment is anti-
Penetrate optical receiver apparatus, projection arrangement 1 is incident upon 3 internal reflection of Projection Display operating area and goes out reflection optical receiver apparatus based on the received
Reflection light 9 the case where export corresponding output signal, control unit identifies the behaviour of user according to the change of output signal
It instructs and responds.
The projection arrangement 1 and reflection optical receiver apparatus is located at the same side of 3 place plane of Projection Display operating area；
One end of Projection Display operating area 3 is arranged in projection arrangement 1, and the setting of reflection optical receiver apparatus is thrown after the irradiation of projection arrangement 1
On the extended line for the reflection light 9 that shadow display operation region 3 issues.
When projection arrangement 1 is directly incident upon in Projection Display operating area 3, projection path is short, and display is clear.At this point,
Projection arrangement 1 and reflection optical receiver apparatus are needed positioned at the same side of 3 place plane of Projection Display operating area, to facilitate reflection
Optical receiver apparatus preferably receives the reflection light 9 reflected in Projection Display operating area 3, correctly identifies use for control unit
Family operation behavior provides basic guarantee.The portion that area on household appliances is big, the visual field is good can be set in Projection Display operating area 3
Position is shown；Projection arrangement 1 can be determined according to directly projection, or by reflection or refracting means reflection/refraction projection
Specific installation site；Reflect optical receiver apparatus then according to projection after, Projection Display operating area 3 issue reflection light 9 side
Always it is arranged, is preferably located on the extended line of reflection light 9, convenient for without hindrance reception reflection light 9.
For example, projection arrangement 1 and reflection optical receiver apparatus can be set in the adjacent two sides of Projection Display operating area 3
Side is oppositely arranged, it is preferred that the projection arrangement 1 and reflection optical receiver apparatus is the two of Projection Display operating area 3
End is oppositely arranged, in this way, can achieve the effect for preferably receiving reflection light 9.
When user is when Projection Display operating area 3 carries out operation setting, finger can block all or part of and be irradiated to
The light of the operating position enhances the albedo in the region, and the reflection light 9 that reflection optical receiver apparatus receives enhances, then
The signal value of output signal then increases, and identifies user behavior according to the variation of signal value convenient for control unit.
Embodiment three
The present embodiment is further limiting for embodiment one, and the present embodiment provides a kind of for the contactless of household electrical appliance
The signal processing method of control device, control unit pass through changing for the signal value for the output signal for judging light signal receiving 2
Become, to identify the operational order of user and respond.
The method that control unit judges the change of the signal value of the output signal of light signal receiving 2, in the present embodiment
Provide two kinds of concrete schemes:
Scheme 1: the signal value for the output signal that control unit is issued according to actual each light sensitive component 21 and is set in program
Fixed standard signal values are compared, and judge user's operation position.Specifically, each light that control unit will be an actually-received
The signal value X for the output signal that sensing unit 21 transmits, is compared with preset standard value N, when X is less than N, judges to use
Family operates in the operating position, and responds.
Wherein, standard value N is when the corresponding operating position of each light sensitive component 21 is blocked half, what control unit received
The signal value for the output signal that each light sensitive component 21 transmits；Standard value N can be setting value when dispatching from the factory, or user is certainly
Calibration value after row calibration.
In the method before device factory, first to each operating position of Projection Display operating area 3 in object without any blockage
In the case where carry out transmitted ray 5 and detect, it is defeated and after the transmitted ray 5 for each operating position that each light sensitive component 21 is received
The signal value correspondence of output signal out stores, as standard value M.
Then each operating position is blocked into half, detects the corresponding output of each operating position that each light sensitive component 21 exports
The signal value of signal simultaneously stores, and is calculated as standard value N.
In actual use, the output signal of control unit real-time detection light sensitive component 21, and arrived actually detected
Signal value X and standard value N compare, when X be less than N when, be determined as that user just operates in this operating position, regarded as user
This program or function or parameter are set.
But user using the time after long afterwards, the operating surface of the Projection Display operating area 3 of device is it is possible that spot
Or abrasion or operating surface material aging etc., caused by detection light signal the problem of changing, user is grasped to influence device
Make the precision judged.In view of this problem, after user uses some cycles, the program setting of device can remind user to throwing
The operating surface in shadow display operation region 3 carries out self calibration after being cleaned.
When self calibration, control unit first compares factory calibration value M and factory calibration value N, obtains the ratio K of the two, and K is then
Calibration parameter, K=N/M.
Standard value N '=K*M ' after self calibration, standard value M ' are user using after some cycles, are operated in Projection Display
In region 3 under unobstructed state, the signal value for the output signal that each light sensitive component 21 that control unit receives transmits.
Control unit stores the standard value M ', the N ' that newly obtain, using after the completion of calibrating in actual use
New standard value compares and analyzes, and judges user's operation behavior.
Scheme 2: control unit passes through the situation of change for judge output signal of the front and back of each light sensitive component 21 output twice,
To judge the operating position of user.The signal value for the output signal that each light sensitive component 21 of control unit real-time reception transmits, when
When the variation of signal value is more than the 50% of original signal value, judge that user operates in the operating position, and respond.
The original signal value be each real-time reception to the signal that arrives of the corresponding one-time detection thereon of output signal
Value.
In both the above scheme, can identify respectively each light sensitive component 21 receive transmitted ray 5 after export it is defeated
The signal value of signal out, and according to the actual operational position of this variation accurate judgement user.
When user has carried out operation in single operation position, control unit is according to the light sensitive component 21 of the operating position
The changes in contrast of the signal value of the output signal of sending judges that user operates in this position, provides corresponding response, such as executes
The corresponding program of operating position or selection relevant parameter or function etc..When user carries out the next item down operation, with same side
Formula carries out.
And when user intentionally or unintentionally, while being operated in multiple operating positions, block transmitted ray 5,
Then the light sensitive component 21 of these operating positions receives the transmitted ray 5 of respective respective operations position respectively, and respectively believes output
Number send control unit, such as respectively X1 to, X2, X3 ..., after control unit analyzes these signal values respectively, according to
Lower method judges the operation behavior of user.
Scheme 1: control unit compares actually detected the signal value X1, X2, X3 ... arrived with standard value N respectively,
When only X1 is less than N, and it is other when being all larger than N, then judge user in the corresponding operation of light sensitive component 21 for issuing signal value X1
Position is operated；Work as X1 then to compare X1, X2, X3 ... when X2, X3 ... are respectively less than N, identify minimum value, then
Judge that user operates in the corresponding operating position of light sensitive component 21 for issuing this output signal；When minimum value have it is multiple, such as
X1, X2, X3 value are identical and when being minimum value, and control unit control provides mentioning for the corresponding display content of these three signal values
Show, the program or parameter for selecting it to need for user；
Alternatively, being again compared X1, X2, X3 with its original signal value respectively, variation is maximum to be considered operative position
It sets；If variation is still identical, prompt is provided respectively, carries out second selecting confirmation for user.
Scheme 2: control unit arrives actually detected the signal value X1, X2, X3 ... arrived with one-time detection thereon respectively
Signal value compares, see whether variation be more than original signal value (signal value of corresponding last time) half；
When only X1 variation is more than original signal value half, then judge that user is right in the light sensitive component 21 for issuing signal value X1
The operating position answered is operated；It is more than when having multiple of original signal value when changing, then is compared, identifies in these values
Change maximum value, then judges that user operates in the corresponding operating position of light sensitive component 21 for issuing this output signal；When
When the maximum value of variation has multiple, control unit control provides the prompt of the corresponding display content of these three signal values, supplies
The program or parameter that user selects it to need.
Example IV
As shown in Figure 3 and Figure 4, described the present embodiment provides a kind of household electrical appliance with contactless control device
Household electrical appliance include projection arrangement 1 and light signal receiving 2, projection arrangement 1 and light signal receiving 2 respectively with household electric
The control unit of device connects；Control unit, which controls projection arrangement 1, will show that content projects Projection Display operating area 3；Light letter
To be incident upon the output of the light conditions in Projection Display operating area 3 corresponding defeated for projection arrangement 1 based on the received for number reception device 2
Signal out, control unit identify the operational order of user according to the change of output signal and respond.
Household electrical appliance can be washing machine 6, dish-washing machine, be particularly suitable for program, function, the electric appliance more than parameter, Ke Yi great
It is big to simplify operating surface, while improving aesthetics.Projection Display operating area 3 can be set at top, top of household electrical appliance etc.
Area is larger, the good position in the visual field, and projection arrangement 1 can determine specific installation site according to direct projection or reflective projection,
Light signal receiving 2 then determines specific installation site according to transmitted light or reflected light is received.To realize household
The operation of the non-touch of electric appliance, has avoided in the case of water or signal receives when material contact operates under unfavorable condition without response
The occurrence of.
Further embodiment, the household electrical appliance are washing machine 6, and the setting of Projection Display operating area 3 is being washed
The top of clothing machine 6 and/or the top of washing machine 6, and/or on the observation window of washing machine 6.
As preferred embodiment, Projection Display operating area 3 is arranged on the transparent door cover 7 of washing machine 6, projection dress
1 outside for being located at transparent door cover 7 is set, light signal receiving 2 is located at the inside of transparent door cover 7, and the optical signal receives dress
It sets 2 and exports corresponding output signal transmitted through the case where transmitted ray 5 of Projection Display operating area 3 based on the received, and pass
To washing machine 6 control unit to identify user operation instruction.Several specific set-up modes on washing machine 6 are given below:
Scheme 1, as shown in figure 3, washing machine 6 is existing top-loading washing machine, door closure 7 is in the top of washing machine 6, laundry
6 top rear of machine is equipped with the operation panel to raise upward.Projection arrangement 1 is arranged on operation panel, and is directly incident upon projection
In display operation region 3.In the inside (downside) of door closure 7, each operating position of corresponding Projection Display operating area 3 is close to
It is provided with multiple light sensitive components 21.The light that projection arrangement 1 projects is irradiated to the upper side of Projection Display operating area 3, part
Light is transmitted to lower section by transparent door cover 7, and each light sensitive component 21 receives transmitted ray 5, and issues output signal to control respectively
Unit processed identifies user's operation behavior in order to which control unit changes according to the signal value of output signal.
Scheme 2, as shown in figure 4, this programme and the difference of scheme 1 are, the washing machine 6 of this programme eliminates operating surface
Plate, the top of the whole covering washing machine 6 of door closure 7 are beautiful high-grade.Projection is set on at least partly transparent door closure 7 of washing machine 6
Display operation region 3, projection arrangement 1 are located at 7 upside of door closure, are located at Projection Display operating area 3, can operate to Projection Display
Projection display content, other parts are identical as scheme 1 in region 3.In this way, washing machine 6 does not need that special operation panel is arranged,
User can operate in the position that display is clear, the visual field is good, while not needing material contact and can also complete, and guarantee operation
Safety and reliability.
Scheme 3: the washing machine 6 of this programme is roller washing machine, and top is equipped with deck plate, and side is equipped with door closure 7, door closure 7
It is equipped with observation window.Projection Display operating area 3 is arranged on observation window or on deck plate.Projection Display operating area
3 setting be on deck plate, can be by the way of scheme 2；When Projection Display operating area 3 is arranged on observation window,
Projection arrangement 1 can be set on the top of observation window outer rim or door closure 7, side, project on observation window.?
The inside of observation window, each operating position of corresponding Projection Display operating area 3, is provided with multiple light sensitive components 21, connects
Receive transmitted ray 5.
Scheme 4: the washing machine 6 of the application is roller washing machine or rotary drum washing machine, and washing machine 6 includes 1 He of projection arrangement
Reflection/refracting means, Projection Display operating area 3 are located on door closure 7, projection arrangement 1 be located at washing machine 6 body door closure 7 or
The top of deck plate, each light sensitive component 21 are located at the lower section of Projection Display operating area 3.Projection arrangement 1 is first by washing machine 6
Actions menu projects on reflection/refracting means, and reflection unit is reflected/is refracted in Projection Display operating area 3, each light sensation member
Part 21, which receives again and detects Projection Display operating area 3, exports corresponding output signal transmitted through light, and is transmitted to washing machine 6
Control unit to identify user operation instruction.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of contactless control device, including control unit, which is characterized in that further include being electrically connected with control unit respectively
Projection arrangement and light signal receiving, projection arrangement by show content project Projection Display operating area, optical signal connects
Projection arrangement is incident upon the corresponding output signal of the output of the light conditions in Projection Display operating area to receiving apparatus based on the received,
Control unit identifies the operational order of user according to the change of output signal and responds.
2. a kind of contactless control device according to claim 1, which is characterized in that the projected display region is
The two sides of plane, the light where transmission region, projection arrangement and light signal receiving are located at Projection Display operating area
Signal receiving device exports corresponding output letter transmitted through the case where transmitted ray of Projection Display operating area based on the received
Number, and it is transmitted to control unit.
3. a kind of contactless control device according to claim 1 or 2, which is characterized in that the Projection Display behaviour
Make to be equipped with multiple operating positions in region, each display content correspondence is incident upon each operating position by projection arrangement；User is operating
When position operates, block all or part of light for being irradiated to the operating position, change light signal receiving receive transmitted through
The light conditions of the operating position, to export different output signals.
4. a kind of contactless control device according to claim 3, which is characterized in that the light signal receiving
For multiple light sensitive components, light sensitive component is arranged in a one-to-one correspondence with the operating position in Projection Display operating area, to receive transmission
The transmitted ray of the operating position.
5. a kind of signal processing method of the contactless control device as described in claim 1-4 is any, which is characterized in that control
Unit passes through the change for judging the signal value of output signal of light signal receiving, to identify the operational order of user and make
Response.
6. signal processing method according to claim 5, which is characterized in that each light that control unit will be an actually-received
The signal value X of the output signal of sensing unit transmission, is compared with preset standard value N, when X is less than N, judges user
It operates, and responds in the operating position.
7. signal processing method according to claim 6, which is characterized in that after user uses some cycles, standard value N can
Self calibration is carried out using correction parameter K, correction parameter K is the ratio of standard value M and standard value N, i.e. K=N/M；
Wherein, when the standard value M is factory, in Projection Display operating area under unobstructed state, control unit is received
The signal value of the output signal for each light sensitive component transmission arrived；
When standard value N is factory, when the corresponding operating position of each light sensitive component is blocked half, each light that control unit receives
The signal value of the output signal of sensing unit transmission；
Standard value N '=K*M ' after self calibration, standard value M ' are after user uses some cycles, in Projection Display operating area
In under unobstructed state, the signal value of the output signal for each light sensitive component transmission that control unit receives.
8. signal processing method according to claim 5, which is characterized in that each light sensitive component of control unit real-time reception
The signal value of the output signal of transmission judges user in the behaviour when the variation of signal value is greater than the 50% of original signal value
Make to operate in position, and responds.
9. a kind of household electrical appliance with the contactless control device as described in claim 1-4 is any, which is characterized in that institute
The household electrical appliance stated include projection arrangement and light signal receiving, projection arrangement and light signal receiving respectively with household electric
The control unit of device connects；Control unit, which controls projection arrangement, will show that content projects Projection Display operating area；Optical signal
Projection arrangement is incident upon the corresponding output letter of the output of the light conditions in Projection Display operating area to reception device based on the received
Number, control unit identifies the operational order of user according to the change of output signal and responds.
10. household electrical appliance according to claim 9, which is characterized in that the household electrical appliance are washing machine, the throwing
The top of washing machine and/or the top of washing machine is arranged in shadow display operation region, and/or on the observation window of washing machine；
Preferably, the Projection Display operating area is arranged on the transparent door cover of washing machine, and projection arrangement is located at transparent doors
The outside of lid, light signal receiving are located at the inside of transparent door cover, and the light signal receiving transmits based on the received
The case where crossing the transmitted ray of Projection Display operating area exports corresponding output signal, and be transmitted to the control unit of washing machine with
Identify user operation instruction.
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| CN201710414202.4A CN108984042B (en) | 2017-06-05 | 2017-06-05 | Non-contact control device, signal processing method and household appliance thereof |
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| CN201710414202.4A CN108984042B (en) | 2017-06-05 | 2017-06-05 | Non-contact control device, signal processing method and household appliance thereof |
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| CN108984042B (en) | 2023-09-26 |
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Effective date of registration: 20230821 Address after: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Applicant after: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266400 Haier Industrial Park, Qianwan Port Road, Jiaonan City, Qingdao City, Shandong Province Applicant before: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. |
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