CN109525233A - A kind of self-service vending machine and its capacitance touch button device - Google Patents
A kind of self-service vending machine and its capacitance touch button device Download PDFInfo
- Publication number
- CN109525233A CN109525233A CN201710845331.9A CN201710845331A CN109525233A CN 109525233 A CN109525233 A CN 109525233A CN 201710845331 A CN201710845331 A CN 201710845331A CN 109525233 A CN109525233 A CN 109525233A
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- China
- Prior art keywords
- touch
- button device
- capacitance
- sensitive area
- key
- 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.)
- Pending
Links
- 239000011324 bead Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
- H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96015—Constructional details for touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96042—Touch switches with illumination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The present invention relates to touch key-press fields, specifically, being a kind of self-service vending machine and its capacitance touch button device.Wherein, capacitance touch button device includes touch panel, printed circuit board and single-chip microcontroller, several touch-sensitive area items corresponding with touch panel are provided on printed circuit board, every touch-sensitive area item includes several touch sensible blocks, the touch-sensitive area item is connect with the single-chip microcontroller, and the single-chip microcontroller is used to detect the capacitance variations of the touch-sensitive area item and judges whether the touch panel is selected.The alternative traditional mechanical key of capacitance touch button in the present invention, it is simultaneously the function of making key have merchandise display and advertisement promotion, the size of this touch key-press is far longer than conventional touch key-press, the size of generally conventional touch key-press is a finger, and the size of this touch key-press is up to 135mm*135mm or more, ad content can be highlighted at a distance, substantially increase demonstration effect.
Description
Technical field
The present invention relates to touch key-press fields, specifically, being a kind of self-service vending machine and its capacitance touch button device.
Background technique
Vending machine is the commonly used equipment of business automation, it is not limited by time, place, can save manpower, side
Just it trades.It is a kind of completely new retailing form, the micro supermarket for the 24 HOUR ACCESS that is otherwise known as.What self-service vending machine needed
The size of key advertisement block need to be greater than 135mm*135mm, be provided simultaneously with the function of selection and advertisement.On the one hand, self-service to peddle
Machine usually uses mechanical key, and mechanical key occupied space is big, needs firmly by that could touch mechanical key, feel is excessively poor；
Mechanical key backlight is uneven；Mechanical key is non-watertight；, when mechanical key is installed, must mechanically have the gap, cold air is easy to let out
Dew；On the other hand, according to capacitance touch button, single finger is touched and palm touch is required to incude sensitive, is had to simultaneously
It could incude when touching key, however capacitive sensing value is inversely proportional with distance, it is directly proportional to sensing area, therefore, if reaching
It is sensed in the place far from touch key-press when palm touches when the size of target key advertisement block, it does not meet
Practical application.
Summary of the invention
In order to solve the above technical problems, big, induction that the first purpose of the invention is to provide a kind of sizes is sensitively
Capacitance touch button device.
To achieve the goals above, present invention employs technical solutions below:
A kind of capacitance touch button device, including touch panel, printed circuit board and single-chip microcontroller are arranged on printed circuit board
There are several touch-sensitive area items corresponding with touch panel, every touch-sensitive area item includes several touch sensible blocks, is touched
Induction zone item is connect with single-chip microcontroller, single-chip microcontroller be used for detect touch-sensitive area item capacitance variations and judge touch panel whether by
It chooses.
Preferably, every touch-sensitive area item is formed in parallel by several touch sensible blocks.
Preferably, softbox is posted below touch panel.
Preferably, the surrounding of printed circuit board is provided with several lamp beads.
Preferably, lamp bead is the LED light of lateral direction light emission.
Preferably, lamp bead is connect with single-chip microcontroller.
Preferably, the size of touch sensible block is 7mm*7mm-12mm*12mm.
Preferably, the size of touch panel is greater than 100mm*100mm.
Another object of the present invention is to provide a kind of self-service vending machines, including above-mentioned capacitance touch button device.
The invention has the following beneficial effects: the alternative traditional mechanical keys of the capacitance touch button in the present invention, together
When be the function of making key have merchandise display and advertisement promotion, the size of this touch key-press be far longer than conventional touch by
Key, the size of generally conventional touch key-press are a finger, and the size of this touch key-press is up to 135mm*135mm or more, far
Distance can highlight ad content, substantially increase demonstration effect.
Detailed description of the invention
Fig. 1 is capacitance touch button apparatus structure schematic diagram of the invention.
Fig. 2 is the touch sensible block distribution map of capacitance touch button device of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Embodiment 1
As depicted in figs. 1 and 2, a kind of capacitance touch button device, including touch panel 1, printed circuit board 2 and monolithic
Machine, several touch-sensitive area items 3 corresponding with touch panel 1 are provided on printed circuit board 2, and every touch-sensitive area item 3 wraps
Several touch sensible blocks 4 are included, touch-sensitive area item 3 is connect with single-chip microcontroller, and single-chip microcontroller is used to detect the electricity of touch-sensitive area item 3
Hold and changes and judge whether touch panel 1 is selected.
Every touch-sensitive area item 3 is formed in parallel by several touch sensible blocks 4.The size of touch sensible block 4 is
7mm*7mm-12mm*12mm.Specifically, in the present embodiment, the size of touch sensible block 4 is 10mm*10mm.
In the present embodiment, it is provided with 12 touch-sensitive area items 3 corresponding with touch panel 1 on printed circuit board 2, touches
It touches induction zone item 3 to connect with single-chip microcontroller, every touch-sensitive area item 3 individually carries out capacitor acquisition, and calculates capacitance variations value.It is single
Calculated 12 capacitance variations values and 3 threshold values are compared by piece machine, judge whether key is selected.In practice,
A capacitor acquisition is carried out every 20 milliseconds.
In the present embodiment, touch panel 1 is acrylic board, posts softbox below touch panel 1, acrylic board and soft
The thickness that tabula rasa is combined into is about 2mm, is based on this thickness, carries out capacitance variations measurement.If the thickness being combined into increases 2mm,
Threshold number reduces 10%.
In the present embodiment, 12 capacitance variations values and 3 threshold values are compared, and threshold values is 10 pico farads, 20 pico farads and 40 skins
Method.Single-chip microcontroller preset algorithm assert that key is pressed when there is following two to happen: one, having 1 capacitance variations value big
In 20 pico farads and capacitance variations value is greater than the item numbers of 10 pico farads and is no more than 4, and corresponding such case is that finger touches；Two,
If there is 1 capacitance variations value is greater than 40 pico farads and has 4 capacitance variations values or more to be greater than 20 pico farads, such case pair
What is answered is that palm touches.Remaining the case where, is regarded as disturbed condition and invalid data, thus be not considered as key by
Under.
In the present embodiment, touch-sensitive area item 3 is formed in parallel by 12 touch sensible blocks 4, the minimum of capacitor acquisition
Unit is touch-sensitive area item 3, and is acquired without the capacitor of touch-sensitive area block 4.
The induction region of printed circuit board 2 is uniformly divided into the region of 1cm or so being separated from each other, 1cm is exactly finger
The induction region of area of bed, therefore either finger touches or palm touches, induction region is all the region 1cm or so, is solved
The problem of finger touch, palm touch, distance.
Specifically, the surrounding of printed circuit board 2 is provided with several lamp beads 5.Lamp bead 5 is the LED light of lateral direction light emission.Lamp bead 5
It can be welding to be also possible to be pasted on printed circuit board 2, these lamp beads 5 are lateral direction light emission pipe, and the upper surface of printed circuit board 2 is put
Softbox is set, the light of 2 inside of directive printed circuit board is reflected to 2 front of printed circuit board, achievees the purpose that even back.Lamp
Pearl 5 connect with single-chip microcontroller, when single-chip microcontroller, which judges that key is selected, to be pressed, the reduction when high level of control lamp bead 5 accounts for, to reduce
Backlight illumination prompts key to be touched.
It should be noted that the item number of the touch-sensitive area item 3 of printed circuit board 2 by the quantity of the input terminal of single-chip microcontroller with
And required touch key-press screen size determines, the quantity for being not limited to the present embodiment limits, and is also not limited to square, can be
Rectangle, circle or other shapes.Meanwhile in touch-sensitive area item 3 touch sensible block 4 quantity also by required touch key-press
Screen size determines.In the present embodiment, the touch area 6 that the touch-sensitive area item 3 on printed circuit board 2 is composed is
134mm*134mm, the size of touch panel 1 are greater than 100mm*100mm and are 160mm*160mm.
Embodiment 2
A kind of self-service vending machine of the present embodiment, including above-mentioned capacitance touch button device.Preferably, capacitance touch is pressed
Key apparatus is set to the upper right corner of self-service vending machine cabinet, in order to the how right-handed use habit of people.
It should be pointed out that above embodiments are only representative examples of the invention.The present invention can also there are many deformations.It is all
Any simple modification, equivalent change and modification to the above embodiments of essence according to the present invention are considered as belonging to this
The protection scope of invention.
Claims (9)
1. a kind of capacitance touch button device, which is characterized in that including touch panel, printed circuit board and single-chip microcontroller, printing electricity
Several touch-sensitive area items corresponding with touch panel are provided on the plate of road, every touch-sensitive area item includes several touches
Incude block, the touch-sensitive area item is connect with the single-chip microcontroller, and the single-chip microcontroller is for detecting the touch-sensitive area item
Capacitance variations and judge whether the touch panel is selected.
2. capacitance touch button device according to claim 1, which is characterized in that if every touch-sensitive area item by
Dry touch sensible block is formed in parallel.
3. capacitance touch button device according to claim 1, which is characterized in that post sheen below the touch panel
Plate.
4. capacitance touch button device according to claim 3, which is characterized in that the surrounding of the printed circuit board is arranged
There are several lamp beads.
5. capacitance touch button device according to claim 4, which is characterized in that the lamp bead is the LED of lateral direction light emission
Lamp.
6. capacitance touch button device according to claim 5, which is characterized in that the lamp bead is connect with single-chip microcontroller.
7. -6 any capacitance touch button device according to claim 1, which is characterized in that the touch sensible block
Having a size of 7mm*7mm-12mm*12mm.
8. capacitance touch button device according to claim 7, which is characterized in that the size of the touch panel is greater than
100mm*100mm。
9. a kind of self-service vending machine, which is characterized in that including the capacitance touch button device as described in claim 1-6 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845331.9A CN109525233A (en) | 2017-09-19 | 2017-09-19 | A kind of self-service vending machine and its capacitance touch button device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845331.9A CN109525233A (en) | 2017-09-19 | 2017-09-19 | A kind of self-service vending machine and its capacitance touch button device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109525233A true CN109525233A (en) | 2019-03-26 |
Family
ID=65769089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710845331.9A Pending CN109525233A (en) | 2017-09-19 | 2017-09-19 | A kind of self-service vending machine and its capacitance touch button device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109525233A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410778A (en) * | 2006-03-31 | 2009-04-15 | 3M创新有限公司 | Touch screen having reduced visibility transparent conductor pattern |
| CN101847065A (en) * | 2009-03-24 | 2010-09-29 | 宸鸿科技(厦门)有限公司 | Circuit structure of capacitance type touch control panel |
| CN202153731U (en) * | 2011-07-21 | 2012-02-29 | 浙江凯迪仕实业有限公司 | Capacitance induction type touch keypad |
| CN202160157U (en) * | 2011-07-21 | 2012-03-07 | 林飞和 | Capacitive sensing touch keyboard board |
| CN103490760A (en) * | 2013-10-18 | 2014-01-01 | 董乐山 | Capacitive touch switch operated in slide way |
| CN103842940A (en) * | 2011-10-05 | 2014-06-04 | 麦孚斯公司 | Apparatus and method for detecting a touch |
| CN105630256A (en) * | 2014-11-07 | 2016-06-01 | 上海科勒电子科技有限公司 | Key touch identification method of capacitive touch screen |
| CN106155436A (en) * | 2015-04-08 | 2016-11-23 | 胡家安 | A kind of input equipment |
| CN207304516U (en) * | 2017-09-19 | 2018-05-01 | 上海欧郡自动化科技有限公司 | A kind of self-service vending machine and its capacitance touch button device |
-
2017
- 2017-09-19 CN CN201710845331.9A patent/CN109525233A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410778A (en) * | 2006-03-31 | 2009-04-15 | 3M创新有限公司 | Touch screen having reduced visibility transparent conductor pattern |
| CN101847065A (en) * | 2009-03-24 | 2010-09-29 | 宸鸿科技(厦门)有限公司 | Circuit structure of capacitance type touch control panel |
| CN202153731U (en) * | 2011-07-21 | 2012-02-29 | 浙江凯迪仕实业有限公司 | Capacitance induction type touch keypad |
| CN202160157U (en) * | 2011-07-21 | 2012-03-07 | 林飞和 | Capacitive sensing touch keyboard board |
| CN103842940A (en) * | 2011-10-05 | 2014-06-04 | 麦孚斯公司 | Apparatus and method for detecting a touch |
| CN103490760A (en) * | 2013-10-18 | 2014-01-01 | 董乐山 | Capacitive touch switch operated in slide way |
| CN105630256A (en) * | 2014-11-07 | 2016-06-01 | 上海科勒电子科技有限公司 | Key touch identification method of capacitive touch screen |
| CN106155436A (en) * | 2015-04-08 | 2016-11-23 | 胡家安 | A kind of input equipment |
| CN207304516U (en) * | 2017-09-19 | 2018-05-01 | 上海欧郡自动化科技有限公司 | A kind of self-service vending machine and its capacitance touch button device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |