CN102162184B - A kind of touch control method for washing machine - Google Patents
A kind of touch control method for washing machine Download PDFInfo
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- CN102162184B CN102162184B CN201110097490.8A CN201110097490A CN102162184B CN 102162184 B CN102162184 B CN 102162184B CN 201110097490 A CN201110097490 A CN 201110097490A CN 102162184 B CN102162184 B CN 102162184B
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Abstract
The invention discloses a kind of touch control method for washing machine, it is connected with at least two piezoelectric transducer in front control plate of washing machine, touch, by the difference gathered at front control board program control region, the unlike signal that sends and determine this position, define the control program that this touch point is corresponding, the positional information of this touch point and control program information are stored; When user uses washing machine, the touch point that option program is corresponding touches, piezoelectric transducer detection sends signal correspondence and reads storage information, and corresponding program information is sent to the host CPU of computer program controller, host CPU record information complete laundry according to the information that user finally selects. The present invention both can realize the function of touch key-press, it is also possible to realizes the function of transparent touch screen, and need not consider the problems such as waterproof, antidetonation, decreases touch wiring board, reduce cost, makes washing machine use touching technique to be possibly realized in a large number.
Description
Technical field
The present invention relates to a kind of washing machine procedure key control method, especially a kind of method adopting touch manner to control program.
Background technology
The application on household electrical appliances of the current touching technique, mainly touch key-press and touch screen two ways, so-called touch key-press refers to the shape and position that are printed with button in front control board, a bar printing wiring board it is pasted with below front control board, having touch chip on wiring board, the electric capacity produced by the finger pressing position of people processes corresponding action command with the different of reference position capacitance; Touch screen is usually transparent, and the position of touch can be unfixed, and in transparent touch area, any position can be key zone. Touch screen is divided into resistive touch screen and capacitive touch screen two kinds according to touching principle. The touch screen of resistance-type is to process corresponding action command according to the different of resistance between finger pressing area and reference value; And capacitive touch screen is similar with the principle of touch key-press, is that the electric capacity produced by the finger pressing position of people processes corresponding action command with the different of reference position capacitance.
Touch key-press requires that the position touched is fixing, and posts printed substrate due to following, so front control board can not be transparent; Resistive touch screen requires that the material of Petting Area is flexible, it is necessary to have the displacement of pressing, so resistive touch screen must be pasted onto above front control board; And capacitive touch screen can be pasted onto below front control board, front control board can be hard, and allows certain thickness. Therefore the characteristic according to the waterproof antidetonation of washing machine, capacitive touch screen is more suitable on washing machine to apply and promote, but at present, capacitive touch screen price comparison is expensive, and it is subject to varying in size of touch area, it is necessary to opening the different mould of system, this just brings very big cost pressure to touch screen promotion and application on washing machine, although so that touching technique is very universal, but being also never employed on washing machine.
As before applicant, the Chinese patent that application number is 200610138461.0 of application discloses a kind of washer touch screen, including printed circuit board (PCB) and panel shell, elastic conduction medium is set between described panel shell and described printed circuit board (PCB). It is an object of the invention to provide a kind of washer touch screen, substitute and prior art adopts conventional keys post and button coordinate the control structure controlling washing machine, instead of and prior art adopts pliability insulation board control the control structure of washing machine with electrode relative configuration.
It addition, the Chinese patent that application number is 200810132836.1 discloses a kind of controller of washer, including: memory element, storage has laundry control function, each function stand the different control process to laundry; Touch screen unit, for gathering the coordinate information that user presses on the touchscreen; Control unit, for determining the control function in the memory element belonging to the coordinate information that touch screen unit gathers, and controls laundry processes according to described control function. Also correspondingly provide the control method of washing machine, including: set coordinate system in advance on the touchscreen, and store the laundry control function belonging to each coordinate; The coordinate on the touch screen that user touches is determined during use; Determine that the laundry control function belonging to this coordinate goes to control laundry processes according to described coordinate.
The coordinate determination method of above-mentioned controller of washer requires that computing is more complicated, and running time delay is longer and sensitivity is relatively low, and the hardware cost additionally used is high, installs complex.
In view of this special proposition present invention.
Summary of the invention
The technical problem to be solved in the present invention is in that to overcome the deficiencies in the prior art, it is provided that a kind of control that washing machine procedure is sensitive, method of toch control efficiently.
For solving above-mentioned technical problem, the present invention adopts the basic conception of technical scheme to be: a kind of touch control method for washing machine, it is connected with at least two piezoelectric transducer in front control plate of washing machine, touch, by the difference gathered at front control board program control region, the unlike signal that sends and determine this position, define the control program that this touch point is corresponding, the positional information of this touch point and control program information are stored; When user uses washing machine, the touch point that option program is corresponding touches, piezoelectric transducer detection sends signal correspondence and reads storage information, and corresponding program information is sent to the host CPU of computer program controller, host CPU record information complete laundry according to the information that user finally selects.
Described piezoelectric transducer is piezoelectric ceramic sensor, and the pressure of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point.
Position, touch point determined by the following method by piezoelectric transducer: by piezoelectric transducer by the fixing sequence of any-mode; The difference of program control region is repeatedly touched, each piezoelectric transducer is according to the touch of a point being obtained magnitude of voltage every time, the operational formula that the voltage every time measured by each piezoelectric transducer sets according to above-mentioned sequence input is calculated obtaining last numerical value, according to same point repetitive measurement calculating the minima and maximum that obtain numerical value to determine the numerical range of this point; Obtain the numerical range of other point of front control board program control region successively in the manner described above, find out and numerical range each other all disjoint touch point identical with program number as touch point corresponding to programme-control. Be ordered as setting to piezoelectric transducer, it is possible to be by installation site along or sequence counter-clockwise, or careless definition 1,2,3 etc., after sequence, order is fixing no longer changes.
The each touch point numerical range corresponding from programme-control is defined as different parameters, each parameter and each programme-control correspondence establishment one curve, this curve is stored in washing machine.
The program of this touch point is marked on control area after defining the touch point of corresponding program by user by image or word.
User's option program, touching this program, the voltage signal converted when touch point is touched measured by each piezoelectric transducer, inputs operational formula evaluation according to the sequence of piezoelectric transducer, read the program that this numerical value place numerical range is corresponding, perform or to store this information etc. pending.
Described operational formula be ratio formula or other between two numerical operation be unsatisfactory for the formula of commutative law, this ratio formula is VSensor 1/VSensor 2/VSensor 3/��/VSensor i, wherein, VSensor iA magnitude of voltage when touch point as measured for i-th piezoelectric transducer once touches, the above-mentioned operational formula being unsatisfactory for commutative law, it can be the hybrid operation etc. of subtraction or subtraction and division, such as, the magnitude of voltage when touch point that a-b/c, a, b, c respectively each piezoelectric transducer is measured once touches.
Described piezoelectric transducer is the piezoelectric transducer measuring sound wave, and the sound wave that knocks of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point.
Described piezoelectric transducer is pasted onto below the front control board of washing machine, or is directly embedded in the inside of front control board, is connected on computer program controller by lead-out wire.
Described piezoelectric transducer is 2-4, control area is a plane, piezoelectric transducer is respectively arranged on each sidepiece of control area, control area is generally the rectangular faceplate structure being located at front control plate of washing machine, piezoelectric transducer is separately positioned on the dual-side of opposition when being 2, it is preferable that be arranged on same cornerwise two angles; When piezoelectric transducer is 3, it is preferable that be arranged on three different sides; When piezoelectric transducer is 4, it is separately positioned on different sides, or it is arranged on four drift angles, above-mentioned mounting means can find more nothing to repeat numerical range, it is thus possible to there are enough positions to determine the touch point that each program is corresponding, the numerical range difference making each touch point corresponding is bigger, reduces and touches error.
The location of above-mentioned touch point, when touching each point, as far as possible every use the heaviest knock, the lightest touch and medium firmly knock so that when detecting numerical range more accurate; When selecting the unduplicated touch point of numerical range, expanding repetition scope as much as possible under the unduplicated premise of scope, the method for this confirmation correspondence program touch point is that washing machine manufacturer gathers signal and determines touch point.
After adopting technique scheme, the present invention compared with prior art has the advantages that.
At least two piezoelectric transducer is pasted onto below the front control board of washing machine or is embedded in inside the front control board of washing machine by the present invention, the voltage produced is measured also different according to the different each piezoelectric transducer of touch location, calculated by operational formula and define different key positions with corresponding with program, front control board is not by color and printing, and material, the restriction of thickness etc., both the function of touch key-press can have been realized, the function of transparent touch screen can also be realized, and waterproof need not be considered, the problems such as antidetonation, decrease touch wiring board, reduce cost, washing machine is made to use touching technique to be possibly realized in a large number.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is front control plate of washing machine program control region schematic diagram of the present invention;
Fig. 2 is computer program controller of washing machine high-level schematic functional block diagram of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, the solution of the present invention is to be pasted onto below the front control board of washing machine by least two piezoelectric transducer, or is directly embedded in the inside of front control board, is simply connected on computer program controller by lead-out wire. Computer program controller is provided with two groups of CPU, namely for the host CPU of main control, and for controlling the touch CPU of touch program.
Piezoelectric transducer of the present invention is piezoelectric ceramic sensor, and the pressure of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point. What piezoelectric transducer detection touch program control region transmitted knocks, characteristic according to piezoelectric transducer itself, when there being pressure to transmit, piezoelectric receives pressure effect, corresponding change in voltage can be produced, the different vibrations point of distance of distance test point, the induced voltage of piezoelectric transducer is also different, and the measuring circuit of computer program controller can measure the change of voltage. Or described piezoelectric transducer is the piezoelectric transducer measuring sound wave, and the sound wave that knocks of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point. Piezoelectric transducer is installed after determining, position and the work of function that definition touches just are completed by the touch CPU on computer program controller. After the parameter such as touch area and position of front control board is all determined, designer can determine the position of touch point in advance, and the position of touch point is stored in the internal storage touching CPU, as the coordinate figure of standard, and mark corresponding program in corresponding touch point so that user touches the program that this point selection needs.
The present invention utilizes the mode that piezoelectric transducer converts voltage signal to replace the circuit in touch key-press control mode or the electric capacity in touch screen control mode or electric resistance touch screen.
Position, touch point determined by the following method by piezoelectric transducer of the present invention: by piezoelectric transducer by the fixing sequence of the mode set, such as self-defined 1,2,3 etc.; The difference of program control region is repeatedly touched, each piezoelectric transducer is according to the touch of a point being obtained magnitude of voltage every time, the operational formula that the voltage every time measured by each piezoelectric transducer sets according to above-mentioned sequence input is calculated obtaining last numerical value, according to same point repetitive measurement calculating the minima and maximum that obtain numerical value to determine the numerical range of this point; Obtain the numerical range of other point of front control board program control region successively in the manner described above, find out and numerical range each other all disjoint touch point identical with program number as touch point corresponding to programme-control.
When user uses washing machine, select to touch the program of these needs, the voltage signal converted when touch point is touched measured by each piezoelectric transducer, operational formula evaluation is inputted according to the sequence of piezoelectric transducer, read the program that this numerical value place numerical range is corresponding, perform or to store this information etc. pending.
As shown in Figure 1, A, B two piezoelectric transducer lay respectively on same cornerwise two angles of program control region 1, any point C (the washing touch point consulting in Fig. 1) is chosen at program control region, knock 3-8 time, the sequence of piezoelectric transducer is sorted according to A, B, this C is knocked 5 times by the present embodiment, the value respectively 0.11,0.15,0.18,0.22,0.25 that A piezoelectric transducer is measured, the value respectively 0.56,0.60,0.62,0.82,0.89 that B piezoelectric transducer is measured, uses ratio formula VSensors A/VSensor B, the ratio measured respectively is 0.196,0.250,0.290,0.268,0.281, it is thus determined that this ranges for 0.196-0.290, by this scope correspondence setup parameter a1, correspond to program b1, such as washing; Select another D (the dehydration touch point consulting in Fig. 1), knock 5 times, the value that A piezoelectric transducer the is measured value respectively 0.38,0.41,0.46,0.50,0.55 that respectively 0.32,0.36,0.40,0.42,0.48, B piezoelectric transducer is measured, uses ratio formula VSensors A/VSensor BThe ratio measured respectively is 0.842,0.878,0.869,0.840,0.873, it is thus determined that this ranges for 0.840-0.878, is measuring under the unduplicated premise of numerical range with other point, it is 0.80-0.90 by this expanded range, by this scope correspondence setup parameter a2, correspond to program b2, such as dehydration; Continue to look for other point, make touch point-program (i.e. ai-bi) homologous thread, and this curve is stored in the internal memory touching CPU.
The touch point of above-described embodiment is determined in program point process, and some C measures numerical range 0.196-0.290 measuring under the unduplicated premise of numerical range with other point, can be 0.18-0.30 by this expanded range; Point D measures numerical range 0.840-0.878 measuring under the unduplicated premise of numerical range with other point, can be 0.80-0.90 by this expanded range.
When user uses washing machine, touch the control area of definition in front control board, as C point washs, touch CPU and judge that the method for touch location is as follows:
1, touch C point, A, B two piezoelectric transducer signal detected respectively, magnitude of voltage respectively 0.20,0.80, ratio calculated VSensors A/VSensor B=0.25;
2, ratio 0.25 is at parameter a1In corresponding scope 0.196-0.290, by a1Value and a in memorizeri-biCurve contrasts, find correspondence by the program b of key definition1;
3, by b1It is sent to the host CPU of computer program controller, by the corresponding content of host CPU record, and completes laundry processes according to final adjustment parameter.
At least two piezoelectric transducer is pasted onto below the front control board of washing machine or is embedded in inside the front control board of washing machine by the present invention, the voltage produced is measured also different according to the different each piezoelectric transducer of touch location, calculated by operational formula and define different key positions with corresponding with program, front control board is not by color and printing, and material, the restriction of thickness etc., both the function of touch key-press can have been realized, the function of transparent touch screen can also be realized, and waterproof need not be considered, the problems such as antidetonation, decrease touch wiring board, reduce cost, washing machine is made to use touching technique to be possibly realized in a large number.
Claims (9)
1. a touch control method for washing machine, it is characterized in that: be connected with at least two piezoelectric transducer in front control plate of washing machine, touch, by the difference gathered at front control board program control region, the unlike signal that sends and determine this position, define the control program that this touch point is corresponding, the positional information of this touch point and control program information are stored; When user uses washing machine, the touch point that option program is corresponding touches, piezoelectric transducer detection sends signal correspondence and reads storage information, corresponding program information is sent to the host CPU of computer program controller, laundry is completed according to the information that user finally selects by host CPU record information, described piezoelectric transducer is piezoelectric ceramic sensor, the pressure of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point.
2. a kind of touch control method for washing machine according to claim 1, it is characterised in that: position, touch point determined by the following method by piezoelectric transducer: by piezoelectric transducer by the fixing sequence of any-mode; The difference of program control region is repeatedly touched, each piezoelectric transducer is according to the touch of a point being obtained magnitude of voltage every time, the operational formula that the voltage every time measured by each piezoelectric transducer sets according to above-mentioned sequence input is calculated obtaining last numerical value, according to same point repetitive measurement calculating the minima and maximum that obtain numerical value to determine the numerical range of this point; Obtain the numerical range of other point of front control board program control region successively in the manner described above, find out and numerical range each other all disjoint touch point identical with program number as touch point corresponding to programme-control.
3. a kind of touch control method for washing machine according to claim 2, it is characterized in that: each touch point numerical range corresponding from programme-control is defined as different parameters, each parameter and each programme-control correspondence establishment one curve, be stored in this curve in washing machine.
4. a kind of touch control method for washing machine according to claim 2, it is characterised in that: the program of this touch point is marked on control area after defining the touch point of corresponding program by user by image or word.
5. a kind of touch control method for washing machine according to claim 2, it is characterized in that: user's option program, touch this program, the voltage signal converted when touch point is touched measured by each piezoelectric transducer, operational formula evaluation is inputted according to the sequence of piezoelectric transducer, read the program that this numerical value place numerical range is corresponding, perform or to store this information etc. pending.
6. a kind of touch control method for washing machine according to claim 2, it is characterised in that: described operational formula be ratio formula or other between two numerical operation be unsatisfactory for the formula of commutative law.
7. a kind of touch control method for washing machine according to claim 1, it is characterised in that: described piezoelectric transducer is pasted onto below the front control board of washing machine, or is directly embedded in the inside of front control board, is connected on computer program controller by lead-out wire.
8. a kind of touch control method for washing machine according to claim 7, it is characterised in that: described piezoelectric transducer is 2-4, and piezoelectric transducer is respectively arranged on each sidepiece of control area.
9. a touch control method for washing machine, it is characterized in that: be connected with at least two piezoelectric transducer in front control plate of washing machine, touch, by the difference gathered at front control board program control region, the unlike signal that sends and determine this position, define the control program that this touch point is corresponding, the positional information of this touch point and control program information are stored; When user uses washing machine, the touch point that option program is corresponding touches, piezoelectric transducer detection sends signal correspondence and reads storage information, corresponding program information is sent to the host CPU of computer program controller, laundry is completed according to the information that user finally selects by host CPU record information, described piezoelectric transducer is the piezoelectric transducer measuring sound wave, the sound wave that knocks of same touch point is converted into the signal of telecommunication to determine the position of this touch point by each piezoelectric transducer respectively, and then the corresponding control program defining this touch point.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106209056A (en) * | 2016-06-27 | 2016-12-07 | 珠海格力电器股份有限公司 | Touch panel and button thereof determine method and apparatus |
| CN108468189B (en) * | 2018-02-26 | 2023-09-12 | 青岛海尔洗衣机有限公司 | Touch screen control method and intelligent device |
| CN110241565B (en) * | 2018-03-07 | 2023-08-01 | 青岛海尔洗涤电器有限公司 | Washing machine with vibration function and control method |
| CN110241566B (en) * | 2018-03-07 | 2023-11-10 | 重庆海尔滚筒洗衣机有限公司 | Washing machine with vibration function and control method |
| CN110241547B (en) * | 2018-03-07 | 2023-08-08 | 青岛海尔洗涤电器有限公司 | Washing machine with vibration function and control method |
| CN109652954B (en) * | 2018-03-22 | 2020-08-28 | 青岛海尔滚筒洗衣机有限公司 | Control method of clothes treatment device and clothes treatment device |
| CN113168258B (en) * | 2019-10-30 | 2022-09-20 | 深圳市汇顶科技股份有限公司 | Touch event detection method, MCU, touch device and storage medium |
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Effective date of registration: 20160510 Address after: 528305 Guangdong Province, Foshan city Shunde District hi tech Zone (Ronggui) Alex Hua Tian North Road No. 16 Applicant after: Foshan Shunde Haier Electric Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |