CN104716944B - The triggering judgment method and household electrical appliance of touch key-press - Google Patents
The triggering judgment method and household electrical appliance of touch key-press Download PDFInfo
- Publication number
- CN104716944B CN104716944B CN201510145147.4A CN201510145147A CN104716944B CN 104716944 B CN104716944 B CN 104716944B CN 201510145147 A CN201510145147 A CN 201510145147A CN 104716944 B CN104716944 B CN 104716944B
- Authority
- CN
- China
- Prior art keywords
- value
- capacitance
- press
- reference value
- preset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
Include the following steps in triggering judgment method disclosed by the invention：S1：Judge whether capacitance a reference value is more than the first preset value, if so, entering step S2；S2：Capacitance instantaneous value is detected, judges whether the variable quantity between capacitance instantaneous value and capacitance a reference value is more than the second preset value, if it is not, S3 is entered step, if so, entering step S4；S3：Variable quantity is superimposed upon capacitance a reference value to obtain updated capacitance a reference value；S4：Judge whether variable quantity is more than trigger value, if so, S6 is entered step, if it is not, entering step S5；S5：Timing variable is reset；S6：When to timing variograph, judge whether timing variable is more than the first preset time value, if so, entering step S7；And S7：To touch key-press triggered as normal.Above-mentioned triggering judgment method can reinitialize capacitance a reference value according to the judgement to capacitance a reference value, and according to the judgement to changing value, the case where can avoid touch key-press false triggering.Invention additionally discloses household electrical appliance.
Description
Technical field
The present invention relates in household appliance technical field, more specifically, be related to a kind of touch key-press triggering judgment method and
A kind of household electrical appliance.
Background technology
The diversity of household electrical appliance, as that pays close attention to user experience gos deep into, the control of household electrical appliance currently on the market
Panel option gradually adopts touch scheme, has not only facilitated but also beautiful.And in current touch scheme, it is most of to use capacitive touch
It touches.
Above-mentioned touch scheme is usually, at the acrylic board back side, first to coat black ink, and to aobvious on black ink
The font shown carries out hollow processing, next applies coloring grounding ink, can thus protrude font color；Double faced adhesive tape is finally added,
It is sticked to above pcb board, the touching induction region on pcb board is consistent with the key area on acrylic board.Since human contact arrives
When touch tablet, that is, acrylic board, the inductance capacitance of the touching induction region on pcb board is changed, and passes through the big of this variation
It is small, it can be determined that whether the finger of people is pressed.
However capacitance touch is due to being affected by the external environment, such as moisture, high/low-temperature impact and media variations external environment
The case where influence, the capacitance that can lead button capacitance changes, is susceptible to button malfunction and false triggering.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention needs offer one
The triggering judgment method of kind touch key-press and a kind of household electrical appliance.
A kind of triggering judgment method of touch key-press, includes the following steps：
S1：The capacitance a reference value of the touch key-press is initialized, and judges whether the capacitance a reference value is more than the first preset value,
If it is not, step S1 is continued to execute, and if repeatedly the capacitance a reference value is still not more than first preset value after initialization, it carries
The user that wakes up malfunctions, if so, entering step S2；
S2：The capacitance instantaneous value for detecting the touch key-press judges the change between the capacitance instantaneous value and the capacitance a reference value
Whether change amount is more than the second preset value, which is less than first preset value, if it is not, S3 is entered step, if so, into
Step S4；
S3：The variable quantity is superimposed upon the capacitance a reference value to obtain updated capacitance a reference value, and enters step S2；
S4：Judge whether the variable quantity is more than trigger value, which is more than second preset value, which is less than should
First preset value, if so, S6 is entered step, if it is not, entering step S5；
S5：Timing variable is reset；
S6：When to the timing variograph, judge whether the timing variable is more than the first preset time value, if so, entering step
Rapid S7, if it is not, entering step S1；And
S7：To the touch key-press triggered as normal.
The triggering judgment method of above-mentioned touch key-press, can be again initial according to the judgement of the capacitance a reference value to touch key-press
Change capacitance a reference value, and according to the judgement of the changing value between capacitance instantaneous value and capacitance a reference value, button can normally be touched
Hair, there are when certain drift and to the feelings of touch key-press false triggering for the capacitance variation with temperature for avoiding for example due to button
Condition.
In one embodiment, between step S6 and step S7, which further includes step S8：If should
Timing variable is more than first preset time value, judges whether the timing variable is less than the second preset time value, this is second default
Time value is more than first preset time value, if so, S7 is entered step, if it is not, entering step S3.
In one embodiment, between step S6 and step S4, which further includes step S9：Judge
Whether the variable quantity is less than predetermined threshold value, which is more than the trigger value, if so, S6 is entered step, if it is not, entering step
S5。
A kind of household electrical appliance, including capacitance detecting portion, control unit and enforcement division, which includes touch key-press,
The control unit connects the enforcement division and the capacitance detecting portion.The control unit includes processing unit, and the capacitance detecting portion is for detecting this
The capacitance of touch key-press.The control unit is used to initialize the capacitance a reference value of touch key-press, and is obtained by the capacitance detecting portion
The capacitance a reference value is taken, the control unit is for judging whether the capacitance a reference value is more than the first preset value, if it is not, the control unit is used
In reinitializing the capacitance a reference value, and if to be still not more than this first default for the capacitance a reference value after repeatedly initializing
Value, then the control unit is used to remind user's error by the processing unit, if so, the control unit is used to examine by the capacitance detecting portion
The capacitance instantaneous value for surveying the touch key-press, judges whether variable quantity between the capacitance instantaneous value and the capacitance a reference value is more than the
Two preset values, second preset value are less than first preset value.If the variable quantity is not more than second preset value, which uses
In the variable quantity is superimposed upon the capacitance a reference value to obtain updated capacitance a reference value, if to be more than this second pre- for the variable quantity
If value, for the control unit for judging whether the variable quantity is more than trigger value, which is more than second preset value, the trigger value
Less than first preset value.If the variable quantity is not more than trigger value, which is used to reset timing variable；If the variable quantity
More than trigger value, when which is used for the timing variograph, judge whether the timing variable is more than the first preset time value.
If the timing variable is more than first preset time value, the control unit is for generating triggered as normal signal；If the timing variable is not
More than first preset time value, which is used to reinitialize the capacitance a reference value of the touch key-press.The enforcement division root
According to the triggered as normal signal, the touch key-press triggered as normal is controlled to execute the corresponding function of the touch key-press.
In one embodiment, if the timing variable is more than first preset time value, this is being generated just in the control unit
Before normal trigger signal, which is additionally operable to judge whether the timing variable is less than the second preset time value, this second it is default when
Between value be more than first preset time value.If the timing variable is less than second preset time value, the control unit is for generating this
Triggered as normal signal；If the timing variable is not less than second preset time value, the control unit is for the variable quantity to be superimposed upon
The capacitance a reference value is to obtain updated capacitance a reference value.
In one embodiment, which includes processing unit, judging part, scanner section and Analog to Digital Converter section, the processing
Portion connects the judging part and the scanner section, which is connected between the scanner section and the capacitance detecting portion, the judgement
Portion connects the enforcement division.The Analog to Digital Converter section is used to the capacitance that the capacitance detecting portion is detected being converted to digital quantity.The processing
Portion obtains the digital quantity for controlling the scanner section from the Analog to Digital Converter section.The judging part is used to judge the electricity according to the digital quantity
Hold whether a reference value is more than the first preset value, judge whether the variable quantity is more than second preset value, whether judges the variable quantity
More than the trigger value, judge whether the timing variable is more than first preset time value, judges whether the timing variable is less than and be somebody's turn to do
Second preset time value, and generate the triggered as normal signal.
In one embodiment, which includes sequentially connected panel, button ink layer, background color ink layer
And circuit board.The button ink layer includes the first body region and is formed in multiple first key zones of first body region, each
First key zone forms the touch key-press, is formed between first between first body region and multiple first key zone
Gap.
In one embodiment, which further includes electroplated layer, and electroplated layer setting is pressed in the panel with this
Between key ink layer, which includes the second body region and is formed in multiple second key zones of second body region, each
Second key zone and each first key zone correspond and are collectively formed the touch key-press, second body region and
It is formed with the second gap between multiple second key zone, second gap is Chong Die with first gap.
In one embodiment, which further includes display unit, which connects the judging part, the display unit
For according to the triggered as normal signal, showing feature content corresponding with the touch key-press.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, wherein：
Fig. 1 is the flow diagram of the triggering judgment method of the touch key-press of better embodiment of the present invention；
Fig. 2 is the module diagram of the household electrical appliance of better embodiment of the present invention；
Fig. 3 is the front schematic view in the capacitance detecting portion of the household electrical appliance of better embodiment of the present invention；
Fig. 4 is the structural schematic diagram in the capacitance detecting portion of the household electrical appliance of better embodiment of the present invention；
Fig. 5 is the structural schematic diagram in the capacitance detecting portion of the household electrical appliance of another better embodiment of the present invention；And
Fig. 6 is that the capacitance of the touch key-press of better embodiment of the present invention changes with time schematic diagram.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the
The feature of one ", " second " can explicitly or implicitly include one or more feature.In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined.
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
Can also be to be electrically connected or can be in communication with each other to be mechanical connection；It can be directly connected, it can also be by between intermediary
It connects connected, can be the interaction relationship of the connection or two elements inside two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter to the component of specific examples and being set for describing.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Incorporated by reference to Fig. 1, the triggering judgment method for the touch key-press that better embodiment of the present invention provides, including following step
Suddenly：
S1：The capacitance a reference value of the touch key-press is initialized, and judges whether the capacitance a reference value is more than the first preset value,
If it is not, step S1 is continued to execute, if so, entering step S2；
S2：The capacitance instantaneous value for detecting the touch key-press judges the change between the capacitance instantaneous value and the capacitance a reference value
Whether change amount is more than the second preset value, if it is not, S3 is entered step, if so, entering step S4；
S3：The variable quantity is superimposed upon the capacitance a reference value to obtain updated capacitance a reference value, and enters step S2；
S4：Judge whether the variable quantity is more than trigger value, which is more than second preset value, if so, entering step
S6, if it is not, entering step S5；
S5：Timing variable is reset；
S6：When to the timing variograph, judge whether the timing variable is more than the first preset time value, if so, entering step
Rapid S7, if it is not, entering step S1；And
S7：To the touch key-press triggered as normal.
In present embodiment, incorporated by reference to Fig. 2, above-mentioned triggering judgment method can be realized by household electrical appliance 100, the household electrical appliance
100 can be the household electrical appliance such as micro-wave oven, refrigerator or electric cooker.In present embodiment, by taking household electrical appliance 100 are micro-wave oven as an example
Explanation.
The household electrical appliance 100 include capacitance detecting portion 102, control unit 104, enforcement division 106 and display unit 108, control unit
104 connection enforcement divisions 106 and capacitance detecting portion 102.Incorporated by reference to Fig. 3, which includes touch key-press 110.The control
Portion 104 processed connects the enforcement division 106, the capacitance detecting portion 102 and the display unit 108.The capacitance detecting portion 102 is for detecting this
The capacitance of touch key-press 110.The display unit 108 is for showing feature content corresponding with the touch key-press 110.
The touch key-press 110 may be disposed on the outer surface of 100 shell of household electrical appliance, to facilitate user to touch.It please close Fig. 3
And 4, in present embodiment, illustrate as an example, the quantity of touch key-press 110 is 5, is respectively " 10 seconds " button, " 1 point "
Button, " function " button, " beginning " button, and " cancellation " button.Accordingly, when touch key-press 110 is judged as triggered as normal
When, household electrical appliance 100 can perform corresponding function, for example, when " 10 seconds " button is judged as triggered as normal, household electrical appliance
The 100 executable functions of increasing heating time 10 seconds；For another example, when " cancellation " button is judged as triggered as normal, household electrical appliances are used
The executable function etc. of cancelling current operation of device 100, such as cancel the heating operation of micro-wave oven.
The touch key-press 110 of present embodiment has mirror effect.Specifically, which includes panel
112, electroplated layer 114, button ink layer 116, background color ink layer 118 and circuit board 120.The panel 112, electroplated layer 114, button
Ink layer 116, background color ink layer 118 and circuit board 120 are sequentially connected, i.e., should along the outside of household electrical appliance 100 internally direction
Electroplated layer 114 is arranged on the inside of the panel 112, which is arranged on the inside of electroplated layer 114, the bottom
Color ink layer 118 is arranged on the inside of button ink layer 116, which is arranged in the inside of the background color ink layer 118
On.
The button module that panel 112, electroplated layer 114, button ink layer 116 and background color ink layer 118 are formed can be by double
Face glue 122 is sticked on circuit board 120.Under the requirement of double faced adhesive tape 122 can be joined：Colloid viscosity is strong, influenced to change by high/low temperature it is small, together
When to insulate it is non-conductive, such as use gum cotton, TL1440 etc..
The panel 112 can be acrylic panel, such as the acrylic board (such as base material PC1.0) of 1mm thickness.
The electroplated layer 114 is arranged between the panel 112 and the button ink layer 116.The electroplated layer 114 includes the second master
Body area 124 and 5 the second key zones 126 for being formed in second body region 124.It is pressed with this 5 second second body region 124
The second gap 128 is formed between keypad 126.
The button ink layer 116 includes the first body region 130 and 5 the first buttons for being formed in first body region 130
Area 132.Each second key zone 126 corresponds with each first key zone 132 and a touch key-press is collectively formed
110.The first gap 134 is formed between first body region 130 and multiple first key zone 132.First gap 134 and
Two gaps 128 are overlapped.
In present embodiment, first gap 134 and the second gap 128 are the concentric circles of hollow out.It is appreciated that at it
In its embodiment, the first gap 134 and the second gap 128 are not limited to circle, can be rectangular, other shapes such as ellipse
Shape；The quantity of first key zone 132 and the second key zone 126 is equal with the quantity of touch key-press 110, but the quantity is not limited to 5
The key zone 132,126 of a or other quantity and touch key-press 110.
The pcb board such as 0.8mm thickness can be selected in circuit board 120, and ratio panels 112 are slightly thin.Circuit board 120 has touch-sensitive area
Domain, such as capacitance sensor.
The manufacture craft in capacitance detecting portion 102 can join as follows：At 112 back side of acrylic board, first applies last layer and ink is electroplated,
As electroplated layer 114.Since electroplated layer 114 is transparent, so there is no need to hollow outs, but need to centered on the display font of key area,
It is radius to cover single key area, and the hollow out that concentric-ring pattern is carried out to electroplated layer 114 is divided, as shown in Figure 4 the first of top
Button 110, electroplated layer dash area are hollow out concentric circles (i.e. the second gap 128).
Then, on the basis of electroplated layer 114, coat black ink or gradual change ink (realize background colour be black or
Person is gradient color effect) become button ink layer 116.Due to the color of background color font to be shown, therefore in black ink or gradual change
Above ink, hollow processing is carried out to font to be shown, while centered on the display font of key area, covering single button
Region is radius, to black ink or gradual change ink, carries out the hollow out segmentation of concentric-ring pattern, as shown in Figure 4 the first of top
Button 110, black ink or gradual change ink dash area are hollow out concentric circles (i.e. the first gap 134), button ink layer 116
Hollow out concentric circles it is Chong Die with the hollow out concentric circles of electroplated layer 114.
Next applying coloring grounding ink becomes background color ink layer 118.Font color can thus be protruded；Due to background color ink
Generally light, therefore the content of its carbon contained is less, the influence to environment is also smaller.Can be according to practical situations, it can
To carry out or divide without similar concentric circles.
Non-conductive double faced adhesive tape 122 is finally added, is sticked to above pcb board 120, the touching induction region on pcb board 120 and Asia
Key area on gram force plate 112 corresponds to.The positive effect figure in finally formed capacitance detecting portion 102, as shown in Figure 3.And because
Fig. 3 is structural schematic diagram, therefore can not show the mirror effect of touch key-press 110.
Hollow out divides the effect of concentric circles (the first gap and the second gap)：Since touching induction region black ink carbon contains
Amount is higher, and external environment variation can make its electric conductivity that uncontrollable variation occur, to be generated to the capacitance of its key area
Bigger influence.When temperature is low, especially 0 degree hereinafter, original preferable black ink of insulation degree and background color oil
Ink all shows certain electric conductivity so that all buttons in capacitance detecting portion 102 all only become a button, especially
It is the acrylic scheme with mirror effect, since it has applied one layer of electroplated layer 114 between black ink and acrylic board again
Reason so that it is very poor to touch effect.
Hollow out segmentation concentric circles is exactly part (the second key zone 126) and the entirety in electroplated layer 114 by key area
Electroplated layer 114 (the second body region 124) it is physically completely separable since electroplated layer 114 can not be ensured in temperature change
The reliability of insulation degree, is just completely cut off on physical route；In button ink layer 116, by the key zone of display font
Domain (the first key zone 132) is physically divided with whole ink (the first body region 130), can reduce different key in this way
Between influence, so as to improve touch effect.
It is appreciated that in other embodiments, touch key-press 110 can not have mirror effect yet.Specifically, incorporated by reference to
Fig. 5, other embodiment provide a kind of capacitance detecting portion 200.Electroplated layer, capacitance detecting is omitted in the capacitance detecting portion 200
Portion 200 includes panel 202, button ink layer 204, background color ink layer 206 and circuit board 208.The panel 202, button ink layer
204, background color ink layer 206 and circuit board 208 are sequentially connected, i.e., along the outside of household electrical appliance internally direction, the button ink
Layer 204 is arranged on the inside of panel 202, which is arranged on the inside of button ink layer 204, the circuit
Plate 208 is arranged on the inside of the background color ink layer 206.What panel 202, button ink layer 204 and background color ink layer 206 were formed
Button module can be sticked to by double faced adhesive tape 210 on circuit board 208.Under the requirement of double faced adhesive tape 210 can be joined：Colloid viscosity is strong, by height
Low temperature effect variation is small, while it is non-conductive to insulate, and such as uses gum cotton, TL1440 etc..
The panel 202 can be acrylic panel, such as the acrylic board (such as base material PC1.0) of 1mm thickness.
The button ink layer 204 includes the first body region 212 and 5 the first buttons for being formed in first body region 212
Area 214, each first key zone 214 form the touch key-press, first body region 212 and 5 first key zones
The first gap 216 is formed between 214.
First gap 216 is the concentric circles of hollow out.It is appreciated that the first gap 216 is not limited to circle, it can the side of being
Shape, the other shapes such as ellipse；The quantity of first key zone 214 is equal with the quantity of touch key-press, but the quantity is not limited to 5
The key zone 214 of a or other quantity and touch key-press.The pcb board such as 0.8mm thickness, ratio panels can be selected in circuit board 208
202 is slightly thin.
The manufacture craft in capacitance detecting portion 200 can join as follows：There is the touch key-press 110 of mirror effect similar to making, but
It is simpler than it, due to having lacked electroplated layer, so only above-mentioned hollow out concentric circles point need to be carried out in black ink or gradual change ink
It cuts.As shown in figure 5, black ink or gradual change ink dash area are hollow out concentric circles, i.e. the first gap 216.Finally
The positive effect figure in the positive effect figure in the capacitance detecting portion 200 of formation capacitance detecting portion 102 as shown in figure 3 is similar.
The control unit 104 includes that (A/D is converted for processing unit 136, judging part 138, scanner section 140 and Analog to Digital Converter section 142
Portion), which connects the judging part 138 and the scanner section 140.The processing unit 136 for example can be central processing unit
(CPU).The Analog to Digital Converter section 142 is connected between the scanner section 140 and the capacitance detecting portion 102, and the judging part 138 connection should
Enforcement division 106 and display unit 108.
The Analog to Digital Converter section 142 is used to the capacitance that the capacitance detecting portion 102 is detected being converted to digital quantity.The processing unit
136 obtain the digital quantity for controlling the scanner section 140 from the Analog to Digital Converter section 142.For example, processing unit 136 starts scanner section
140, the capacitance that the time is fixed is scanned to obtain the corresponding digital quantity of button capacitance.
Incorporated by reference to Fig. 6, in figure 6, capacitance is the value after digitlization, and solid line is capacitance a reference value, and chain-dotted line is electricity
Hold instantaneous value.In step sl, the capacitance a reference value of the processing unit 136 initialization touch key-press 110, and pass through the capacitance detecting
Portion 102 obtains the capacitance a reference value.The judging part 138 is used to judge whether the capacitance a reference value to be more than the first preset value, if it is not,
The processing unit 136 is for reinitializing the capacitance a reference value.
In present embodiment, the capacitance a reference value after initialization is, for example, 1000, as shown in the O points of Fig. 6.First preset value
It may be configured as 500.If judging part 138 judges that capacitance a reference value is less than or equal to 500, capacitance benchmark should be reinitialized
Value.In other embodiments, step S1 may also include, if repeatedly capacitance a reference value is still default no more than first after initialization
Value, then processing unit 136 can remind user to malfunction, such as processing unit 136 can control 100 generation sound of household electrical appliance and/light to prompt
.It can be solved in this way when initialization is pinpointed the problems, not reinitialized, or is corresponding wrong without prompt
Accidentally the problem of.If the judging part 138 judges that capacitance a reference value is more than the first preset value, S2 is entered step.
In step s 2, specifically, after initialization, each sweep time has arrived (such as every 0.5 millisecond of run-down), place
Reason portion 136 controls scanner section 140 and starts Analog to Digital Converter section 142, the capacitance instantaneous value (analog quantity) that capacitance detecting portion 102 is passed back
Digital quantity is converted to, and is stored in 144 the inside of storage part being connect with processing unit 136.Judging part 138 judges the capacitance instantaneous value
Whether the variable quantity between the capacitance a reference value is more than the second preset value.In this step S2, the second preset value may be configured as
20.When scanning, the capacitance instantaneous value for obtaining A points is 1015, and the variable quantity compared to the capacitance a reference value 1000 after initialization is 15.
The variable quantity is caused when may be slowly varying by external environment (such as temperature), rather than touch key-press 110 is touched by user
Caused by.
If the variable quantity is not more than second preset value, in step s3, the processing unit 136 is for the variable quantity to be superimposed
In the capacitance a reference value to obtain updated capacitance a reference value.In present embodiment, variable quantity is 15 less than the second preset value
20, therefore variable quantity 15 is superimposed in capacitance a reference value 1000, obtains updated capacitance a reference value 1015.Thus, it is believed that should
Variable quantity is caused when being slowly varying by external environment, and such as the A points in Fig. 6, the capacitance instantaneous value of button has changed 15, this
It is capacitance a reference value to update, that is, adds the capacitance change of button 110, can thus solve, since capacitance is with temperature
Variation there are certain drifts, when the temperature increases, a reference value of the capacitance of button 110 is not corrected and is updated, meeting
The case where leading to 110 false triggering of touch key-press.
After the completion of update, S2 is entered step, processing unit 136 may wait for the arrival of next sweep time, continues detection and touches
Touch the capacitance instantaneous value of button 110.
When variable quantity is more than the second preset value, caused by this variable quantity may touch touch key-press 110 by user, therefore
In step s 4, which judges whether the variable quantity is more than trigger value, which is more than second preset value.Make
Illustrate for example, trigger value may be configured as 100, be more than the second preset value 20.
Further, in present embodiment, between step S6 and step S4, which further includes step
S9：Judge whether the variable quantity is less than predetermined threshold value, which is more than the trigger value, if so, S6 is entered step, if it is not,
Enter step S5.
In step s 9, judging part 138 judges whether the variable quantity is less than predetermined threshold value.Predetermined threshold value may be configured as 500,
More than trigger value 100.Variable quantity is also likely to be caused by prodigious interference.Therefore, when have it is prodigious interference come in
When, such as the B points in Fig. 6, since the triggering judgment method sets predetermined threshold value, so when judging part 138 judges capacitance
Variable quantity be greater than or equal to pre-set limit 500 when, which will mask the interference signal, avoid touch key-press 110
False triggering.
In step s 5, due to variable quantity be not by user touch caused by variation, so, held for representing variable quantity
The timing variable of continuous time, processing unit 136 makees clear operation, and waits for the arrival of next sweep time, and timing variable can be
It is initialized as zero in step S1.
In step s 6, in variable quantity it is more than trigger value and when less than predetermined threshold value, this represents variable quantity and is likely to be
User touches caused variation, such as the C points in Fig. 6.At this point, when processing unit 136 is started to timing variograph, for example, often crossing 1
A time of day, processing unit 136 add 1 in timing variable.During timing, variable quantity may become due to some interference
Less than trigger value, in this case, processing unit 136 makees clear operation to timing variable.If variable quantity is more than trigger value and small
Continue in the case where predetermined threshold value, processing unit 136 constantly adds 1 to timing variable, and judging part 138 judges whether timing variable is more than
First preset time value M.
In the step s 7, when judging part 138 judges that (the C points in Fig. 6, capacitance instantaneous value are for the capacitance instantaneous value of button 110
300) it is more than trigger value 100 and is less than predetermined threshold value 500, while timing variable is more than the first preset time value M, such as 50 milliseconds.
At this point, judging part 138 generates triggered as normal signal.Enforcement division 106 controls the touch key-press 110 according to the triggered as normal signal
To execute the 110 corresponding function of touch key-press, which is used for according to the triggered as normal signal, display triggered as normal
Feature content corresponding with the touch key-press 110.
For example, when judging part 138 judges that " 100 " second button 110 is normally touched by user, judging part 138 generates expression
Heating time increases by 10 seconds triggered as normal signals, and enforcement division 106 increases by 10 seconds triggered as normal according to the expression heating time
Signal controls the heating equipment in micro-wave oven, such as inverter and the working time of magnetron increase by 10 seconds.108 basis of display unit
The expression heating time increases by 10 seconds triggered as normal signals, increases by 10 seconds on the time currently shown, for example, from display "
10 " becoming display " 20 " etc..
In addition, between step S6 and step S7, which further includes step S8：If the timing variable is more than
First preset time value, judges whether the timing variable is less than the second preset time value, which is more than should
First preset time value, if so, S7 is entered step, if it is not, entering step S3.
In step S8, judging part 138 will continue to detect the duration (timing variable) of button triggering.If timing variable is super
Crossed setting the second preset time value S (in view of there is the application of long keying, the S values can generally set it is long a bit, such as 1 point
Clock).That is the D points in Fig. 6, then it is as caused by the big variation of external environment rather than the button operation of human hand that explanation, which is variable quantity,.
At this point, processing unit 136 needs to update capacitance a reference value, that is, when adding the variable quantity of button capacitance, and waiting for a next scanning
Between arrival.It can be solved in this way when variation drastically occurs for temperature, the change of similar normal waveform can occur for the capacitance of button
Change, if without Anti-interference algorithm, it may appear that the Problem-Error of button malfunction.
The waveform of the capacitance instantaneous value and capacitance a reference value of E points~F points in Fig. 6, the variable quantity of button capacitance are
200, and the duration is more than the first preset time value M and less than the second preset time value S, judging part is judged as that button normally touches
Hair generates triggered as normal signal.It is appreciated that the first above-mentioned preset value, the second preset value, trigger value, predetermined threshold value, first
Preset time value and the second preset time value can be stored in advance in storage part 144, and when method executes, can be by processing unit
Other component invocations such as 136, update etc.；And storage part also may be present in produced digitized capacitance in method implementation procedure
In 144, for other component invocations such as processing unit 136, update etc..
In conclusion the triggering judgment method of above-mentioned touch key-press sentencing according to the capacitance a reference value to touch key-press 110
It is disconnected, capacitance a reference value can be reinitialized, and according to the judgement of the changing value between capacitance instantaneous value and capacitance a reference value, it can
To 110 triggered as normal of button, there are right when certain drift for the capacitance variation with temperature for avoiding for example due to button 110
The case where 110 false triggering of touch key-press.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the present invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case of not departing from the principle of the present invention and objective, modification, replace and become
Type, the scope of the present invention are limited by claim and its equivalent.
Claims (9)
1. a kind of triggering judgment method of touch key-press, which is characterized in that include the following steps：
S1：The capacitance a reference value of the touch key-press is initialized, and judges whether the capacitance a reference value is more than the first preset value, if
It is no, step S1 is continued to execute, and if repeatedly the capacitance a reference value is still not more than first preset value after initialization, it reminds
User malfunctions, if so, entering step S2；
S2：The capacitance instantaneous value for detecting the touch key-press judges the variable quantity between the capacitance instantaneous value and the capacitance a reference value
Whether second preset value is more than, which is less than first preset value, if it is not, S3 is entered step, if so, entering step
S4；
S3：The variable quantity is superimposed upon the capacitance a reference value to obtain updated capacitance a reference value, and enters step S2；
S4：Judge the variable quantity whether be more than trigger value, the trigger value be more than second preset value, the trigger value be less than this first
Preset value, if so, S6 is entered step, if it is not, entering step S5；
S5：Timing variable is reset；
S6：When to the timing variograph, judge whether the timing variable is more than the first preset time value, if so, S7 is entered step,
If it is not, entering step S1；And
S7：To the touch key-press triggered as normal.
2. triggering judgment method as described in claim 1, which is characterized in that between step S6 and step S7, which sentences
Disconnected method further includes step S8：If the timing variable is more than first preset time value, judge whether the timing variable is less than the
Two preset time values, which is more than first preset time value, if so, S7 is entered step, if it is not, entering step
Rapid S3.
3. triggering judgment method as described in claim 1, which is characterized in that between step S6 and step S4, which sentences
Disconnected method further includes step S9：Judge whether the variable quantity is less than predetermined threshold value, which is more than the trigger value, if so,
S6 is entered step, if it is not, entering step S5.
4. a kind of household electrical appliance, which is characterized in that including capacitance detecting portion, control unit and enforcement division, which includes
Touch key-press, it includes processing unit which, which connects the enforcement division and the capacitance detecting portion, the control unit,；
The capacitance detecting portion is used to detect the capacitance of the touch key-press；
The control unit is used to initialize the capacitance a reference value of touch key-press, and obtains the capacitance benchmark by the capacitance detecting portion
Value, the control unit is for judging whether the capacitance a reference value is more than the first preset value, if it is not, the control unit is for reinitializing
The capacitance a reference value, and if repeatedly the capacitance a reference value is still not more than first preset value, the control unit after initialization
For reminding user's error by the processing unit, if so, the control unit is used to detect the touch key-press by the capacitance detecting portion
Capacitance instantaneous value, judge whether variable quantity between the capacitance instantaneous value and the capacitance a reference value is more than the second preset value, should
Second preset value is less than first preset value；
If the variable quantity is not more than second preset value, which is used to the variable quantity being superimposed upon the capacitance a reference value to obtain
To updated capacitance a reference value, if the variable quantity is more than second preset value, whether the control unit is for judging the variable quantity
More than trigger value, which is more than second preset value, which is less than first preset value；
If the variable quantity is not more than trigger value, which is used to reset timing variable；It, should if the variable quantity is more than trigger value
When control unit is used for the timing variograph, and judge whether the timing variable is more than the first preset time value；
If the timing variable is more than first preset time value, the control unit is for generating triggered as normal signal；If the timing becomes
Amount is not more than first preset time value, which is used to reinitialize the capacitance a reference value of the touch key-press；
The enforcement division controls the touch key-press triggered as normal to execute the corresponding work(of the touch key-press according to the triggered as normal signal
Energy.
5. household electrical appliance as claimed in claim 4, which is characterized in that if the timing variable is more than first preset time value,
Before the control unit generates the triggered as normal signal, when which is additionally operable to judge whether the timing variable is default less than second
Between be worth, second preset time value be more than first preset time value；
If the timing variable is less than second preset time value, the control unit is for generating the triggered as normal signal；If the timing
Variable is not less than second preset time value, which is used to the variable quantity being superimposed upon the capacitance a reference value to be updated
Capacitance a reference value afterwards.
6. household electrical appliance as claimed in claim 5, which is characterized in that the control unit include processing unit, judging part, scanner section and
Analog to Digital Converter section, the processing unit connect the judging part and the scanner section, which is connected to the scanner section and the capacitance
Between test section, which connects the enforcement division；
The Analog to Digital Converter section is used to the capacitance that the capacitance detecting portion is detected being converted to digital quantity；
The processing unit obtains the digital quantity for controlling the scanner section from the Analog to Digital Converter section；
The judging part is used to judge that the capacitance a reference value whether more than the first preset value, judges that the variable quantity is according to the digital quantity
It is no be more than second preset value, judge the variable quantity whether be more than the trigger value, judge the timing variable whether be more than this first
Preset time value, judges whether the timing variable is less than second preset time value, and generates the triggered as normal signal.
7. household electrical appliance as claimed in claim 4, which is characterized in that the capacitance detecting portion include sequentially connected panel, by
Key ink layer, background color ink layer and circuit board；
The button ink layer includes the first body region and is formed in multiple first key zones of first body region, it is each this first
Key zone forms the touch key-press, and the first gap is formed between first body region and multiple first key zone.
8. household electrical appliance as claimed in claim 7, which is characterized in that the capacitance detecting portion further includes electroplated layer, the electroplated layer
It is arranged between the panel and the button ink layer, which includes the second body region and be formed in the more of second body region
A second key zone, each second key zone corresponded with each first key zone and be collectively formed the touch by
Key is formed with the second gap between second body region and multiple second key zone, second gap and first gap weight
It is folded.
9. household electrical appliance as claimed in claim 6, which is characterized in that the household electrical appliance further include display unit, which connects
The judging part is connect, which is used to, according to the triggered as normal signal, show feature content corresponding with the touch key-press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510145147.4A CN104716944B (en) | 2015-03-30 | 2015-03-30 | The triggering judgment method and household electrical appliance of touch key-press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510145147.4A CN104716944B (en) | 2015-03-30 | 2015-03-30 | The triggering judgment method and household electrical appliance of touch key-press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104716944A CN104716944A (en) | 2015-06-17 |
| CN104716944B true CN104716944B (en) | 2018-09-11 |
Family
ID=53415964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510145147.4A Active CN104716944B (en) | 2015-03-30 | 2015-03-30 | The triggering judgment method and household electrical appliance of touch key-press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104716944B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007071A (en) * | 2015-08-25 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Method for judging whether capacitive touch key is effective or not and operation method |
| CN105373253B (en) * | 2015-10-20 | 2019-01-18 | 北京小鸟听听科技有限公司 | A kind of temperature-compensation method and device of touch-key |
| CN105790747A (en) * | 2016-02-25 | 2016-07-20 | 广东美的厨房电器制造有限公司 | Touch key triggering detection method and triggering detection device |
| CN107776539B (en) * | 2016-08-29 | 2021-03-23 | 长城汽车股份有限公司 | Vehicle door handle sensing device and vehicle door handle sensing sensitivity adjustment method |
| CN107294522B (en) * | 2017-07-05 | 2020-09-01 | Oppo广东移动通信有限公司 | Response method and device based on touch key, storage medium and electronic equipment |
| CN107861844A (en) * | 2017-09-30 | 2018-03-30 | 杭州天马时控科技股份有限公司 | A kind of high efficiency key detecting method |
| CN109984579B (en) * | 2017-12-29 | 2022-08-02 | 浙江绍兴苏泊尔生活电器有限公司 | Processing method and device of touch key and cooking appliance |
| CN108397794A (en) * | 2018-02-09 | 2018-08-14 | 九阳股份有限公司 | A kind of overflowing pot processing method of kitchen range |
| CN108897247A (en) * | 2018-05-02 | 2018-11-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Control method and washing electric appliance |
| CN111026296A (en) * | 2018-10-10 | 2020-04-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Response control method and device for touch key and electric appliance |
| CN111198626B (en) * | 2018-11-16 | 2021-06-11 | 珠海格力电器股份有限公司 | Reference value correction method and device for capacitive touch key and storage medium |
| CN110824378B (en) * | 2019-10-31 | 2022-02-15 | 中电海康无锡科技有限公司 | Touch key detection method |
| CN110995230B (en) * | 2019-11-28 | 2023-07-18 | 九阳股份有限公司 | Touch key processing method of food processor |
| CN111578439A (en) * | 2020-05-27 | 2020-08-25 | 珠海格力电器股份有限公司 | Wet hand detection device, drive-by-wire ware and air conditioner of touch button |
| CN113820957B (en) * | 2020-06-19 | 2023-09-19 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device of cooking equipment, cooking equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726094Y (en) * | 2004-08-25 | 2005-09-14 | 胡正明 | Switch with mirror-like film face |
| CN101820510A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Touch control television and realizing method thereof |
| CN102385447A (en) * | 2011-11-23 | 2012-03-21 | 江苏惠通集团有限责任公司 | Touch identification method and device, space mouse and control method thereof |
| CN103607187A (en) * | 2013-11-12 | 2014-02-26 | 青岛歌尔声学科技有限公司 | Method and apparatus for detecting whether capacitor touch button is triggered |
| CN103703434A (en) * | 2011-06-22 | 2014-04-02 | 夏普株式会社 | Touch panel system and electronic device |
| CN104423753A (en) * | 2013-09-10 | 2015-03-18 | 深圳市启望科文技术有限公司 | Capacitive touch detection method, device and mobile terminal |
| CN204442338U (en) * | 2015-03-30 | 2015-07-01 | 广东美的厨房电器制造有限公司 | Household electrical appliance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI484396B (en) * | 2013-04-16 | 2015-05-11 | Ene Technology Inc | A method for filtering an interference source and a touch sensing device |
-
2015
- 2015-03-30 CN CN201510145147.4A patent/CN104716944B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726094Y (en) * | 2004-08-25 | 2005-09-14 | 胡正明 | Switch with mirror-like film face |
| CN101820510A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Touch control television and realizing method thereof |
| CN103703434A (en) * | 2011-06-22 | 2014-04-02 | 夏普株式会社 | Touch panel system and electronic device |
| CN102385447A (en) * | 2011-11-23 | 2012-03-21 | 江苏惠通集团有限责任公司 | Touch identification method and device, space mouse and control method thereof |
| CN104423753A (en) * | 2013-09-10 | 2015-03-18 | 深圳市启望科文技术有限公司 | Capacitive touch detection method, device and mobile terminal |
| CN103607187A (en) * | 2013-11-12 | 2014-02-26 | 青岛歌尔声学科技有限公司 | Method and apparatus for detecting whether capacitor touch button is triggered |
| CN204442338U (en) * | 2015-03-30 | 2015-07-01 | 广东美的厨房电器制造有限公司 | Household electrical appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104716944A (en) | 2015-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104716944B (en) | The triggering judgment method and household electrical appliance of touch key-press | |
| US8247744B2 (en) | Cooking device | |
| US7851720B2 (en) | Capacitive touch switch, circuit configuration for a capacitive touch switch and control device for an electronic domestic appliance with at least one capacitive touch switch | |
| CN108617043A (en) | The control method and control device and cooking appliance of cooking appliance | |
| JP3269596B2 (en) | Touch panel type input device | |
| CN103901910B (en) | Heating device and control method thereof | |
| CN105790747A (en) | Touch key triggering detection method and triggering detection device | |
| CN105302302B (en) | A kind of method and device of application control | |
| TW201017494A (en) | Touch sensor device | |
| CN107923112A (en) | The household appliance of improved operability with the operation device for being designed as touch-screen | |
| CN107924271A (en) | Household appliance including the operation device for being configured to outside or inside touch-screen | |
| CN103761010B (en) | Touch identification method and device and touch operation structure | |
| CN107198433A (en) | A kind of method of displaying function menu, device and electric cooking pot | |
| CN103748276A (en) | Domestic appliance having a touch-sensitive operating and display device | |
| US10324584B2 (en) | Touch screen display having an external physical element for association with screen icons | |
| CN203909740U (en) | Electrical heating appliance with touch display screen | |
| CN204442338U (en) | Household electrical appliance | |
| CN105138182B (en) | Touch-control display module, touch-control input unit and touch control input method | |
| CN205568652U (en) | Electric cooking ware | |
| JP2009139019A (en) | Heating cooker | |
| CN205845782U (en) | Key device | |
| CN109710098B (en) | Touch button with display screen and household appliance | |
| CN106250882A (en) | Fingerprint recognition sensing device, electronic equipment and mobile terminal | |
| CN205920904U (en) | Key device | |
| CN105630364B (en) | A kind of information processing method and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |