CN202041929U - Touch screen control device - Google Patents
Touch screen control device Download PDFInfo
- Publication number
- CN202041929U CN202041929U CN2010202482294U CN201020248229U CN202041929U CN 202041929 U CN202041929 U CN 202041929U CN 2010202482294 U CN2010202482294 U CN 2010202482294U CN 201020248229 U CN201020248229 U CN 201020248229U CN 202041929 U CN202041929 U CN 202041929U
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- touch
- screen
- control device
- touch screen
- utility
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- Expired - Fee Related
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Abstract
The utility model provides a touch screen control device, comprising a touch screen controller, a touch screen and a microcontroller. A touch induction button chip WTC6508BSI is used as the main touch screen controller. Eight independent capacitive sensor input channels are used to detect the change of capacitance of an induction disc of touch buttons. In addition, effective finger touch is identified according to a set of efficient algorithms. Meanwhile, various conductive adhesive tapes are combined, so as to expand the touch induction range. The touch screen is a glass screen panel which is beautiful, achieves remarkable perspective effect and has the protection function. The microcontroller is an AVR single-chip microcomputer, so as to perform real-time detection of data on touch induction, determine whether any button is pressed and carry out corresponding treatment. The utility model provides a convenient and flexible human-machine interaction input mode. Compared with conventional mechanical buttons, the buttons of the touch screen of the utility model are more visual and convenient, occupy small space and have a long service lifetime.
Description
Technical field
The utility model relates to a kind of touch-screen control device.
Background technology
Along with the continuous development of touch key-press technology, touch-key is widely applied at aspects such as Access Control, electrical equipment, mobile phone, cooking apparatus, household appliances, industry control switch, security protection equipment, lift facility, PC peripherals and Long-distance Control.Touch-key is compared with traditional mechanical button, plastic film switch has a lot of advantages: for example mechanical button, plastic film switch are long general service time, elasticity will descend, reaction slows up, but touch key-press does not have mechanical part, just can not have mechanical wear yet, and is therefore not fragile, durability is good, reliability is higher, and sensitivity is higher, has reduced the defective odds; And it is without any mechanical part, can not wear and tear, and infinite life, reduces later maintenance cost; And the panel pattern is followed one's bent, and button size, shape design arbitrarily, and character, trade mark, perspective window etc. are collocation arbitrarily, and aesthetic in appearance, fashion is colour-fast, indeformable, durable in use.The capacitive induction soft-touch control does not need the direct contacting metal of human body, can thoroughly eliminate safe hidden trouble, even the band gloves also can use, and human body resistance variation etc. influences when not being subjected to dry weather moist, can realize robotization by finger, personnel provide greater flexibility for product design; Its sensing part can be placed into the back of any insulation course (being generally glass or plastic material) in addition, is easy to make the keyboard that seals mutually with surrounding environment.
Just because of touch key-press has the incomparable advantage of conventional keys, make it to become the first-selected input mode of most band button interfaces equipment.
The utility model content
The utility model is intended to overcome deficiencies such as mechanical button, plastic film switch technical life are limited, poor reliability, provides a kind of durable in use, controls touch-screen control device convenient, flexible and attractive in appearance.
For achieving the above object, touch panel device of the present utility model comprises touch induction circuit, AVR single-chip microcomputer governor circuit, proprietary data transmit-receive circuit.It is characterized in that described touch induction circuit is provided with eight induced key interfaces, the WTC6508B peripheral circuit is very simple, only needs a small amount of Resistor-Capacitor Unit to get final product work.In addition, have the conductive body of certain area of plane can be as key induced dish, this device be then selected transparent conduction high-quality film for use for the requirement of satisfying printing opacity, and size, shape that so just can better fit button itself design.And be the requirement of satisfying sensitivity, to the design of the resistance of its conduction and inductive disks and bonding the strict process requirement arranged all.Generally speaking, the area of each inductive disks should keep identical as far as possible, and is identical to guarantee sensitivity.Strengthen the penetration capacity that the inductive disks area helps to improve capacitive sensing, improve sensitivity.Described AVR single-chip microcomputer governor circuit is provided with LED lamp indicating circuit, buzzer call circuit, online down loading updating circuit.Further, read button data by AVR chip microcontroller 2 line serial modes, whether induced key is pressed.And in conjunction with pressing of button and piping of the upspring corresponding LED of setting lamp indicating status and hummer, image is concrete more.For making things convenient for the upgrading and the renewal of program, be provided with online download circuit in addition.Further, described bus communication circuit adopts proprietary bussing technique that data are carried out high efficiency of transmission, delays to the received signal to drive by chip for driving, and by the external interrupt of AVR single-chip microcomputer data is carried out real-time and effective and handle.The bus communication circuit can also allow equipment to carry out power taking on signal wire and give whole external circuit power supply except normally receiving and send the data in addition, and having saved like this provides the equipment of power supply in addition separately, thereby has reduced cost.
Description of drawings
Fig. 1 is a whole apparatus system schematic diagram of the present utility model
Fig. 2 is a touch induction circuit schematic diagram of the present utility model
Fig. 3 is an AVR single-chip microcomputer governor circuit schematic diagram of the present utility model
Fig. 4 is a bus data transmission circuit schematic diagram of the present utility model
Fig. 5 is a LED lamp indicating circuit schematic diagram of the present utility model
Fig. 6 is an online download circuit schematic diagram of the present utility model
Fig. 7 is the utility model buzzer circuit schematic diagram
Embodiment
See also Fig. 1, the touch panel device that this example is implemented has comprised touch induction circuit 2, AVR single-chip microcomputer governor circuit 3 and bus data transmission circuit 4.Its main control chip mainly adopts WTC6508B and Atmaga88 master chip.
Be provided with WTC6508B touch sensible chip in the utility model touch induction circuit 2, requirement must use 3 touch key-presss to guarantee the steady operation of chip at least, and SW7～SW0 had vacant no sensor input channel when WTC6508BSI was applied in the occasion that is less than 8 keys.As long as vacant input channel is simple unsettled just passable, and vacant input channel can not add draws or pull down resistor on any.The resistance that is provided with the 1K of each capacitive transducer passage serial connection of passage build-out resistor (R31, R32, R33) can be operated in the most stable best capacitance measurement state for making WTC6508BSI.Also be provided with sensitivity in addition and set electric capacity (C31, C32), designing the touch sensible keypad, and panel material and thickness have been selected, determined after the mounting means, the value that only needs to regulate one or two capacitor C se1 can change the sensitivity of all passages to adapt to the panel of different-thickness, reach best touch sensible effect,, can make WTC6508BSI adapt to the insulating panel of the different-thickness of 0-20mm by selecting the capacitance of suitable Csel.WTC6508BSI adopts two-wire serial interface and main control MCU to communicate, and main control MCU can read the switching information of touch key-press by SCLK and SDA, and the induction sensitivity of touch key-press can be set by serial line interface.SCLK is the clock signal of serial line interface, and SDA is the data-signal of serial line interface.
AVR single-chip microcomputer governor circuit 3 of the present utility model is provided with the ATMAGA88 single-chip microcomputer, 3904 triodes drive, and realizes the indication of LED lamp and the control of hummer.
The front end of the transmission of bus communication circuit of the present utility model is by a not gate, this not gate has played an effect that data delay to the transmission of data, again by a pair of coupling capacitance, the Transistor-Transistor Logic level waveform mode that will send is loaded on the transmission data line, the effect of this mode is to transmit on twisted-pair feeder after information is amplified again, not only make the distance of transmission farther but also be not vulnerable to extraneous interference, and produce the situation of mess code.And the front end that receives is by a capacitor filtering, process PNP pipe is to carrying out the ripple conversion again, convert Transistor-Transistor Logic level to and supply with not gate, the effect of rear end not gate is: the one, played data buffering, and the 2nd, with data conversion, high level becomes low level, low level becomes high level, the initial of data is exactly a negative edge like this, just in time supplies the outside negative edge Interrupt Process of AVR single-chip microcomputer, is convenient to processor and more in time data received processing.
The utility model has been realized a kind of novel interpersonal interactive form, not only panel is succinctly beautiful, than mechanical key, more can adapt to humiture variation environment greatly, long service life, not easy to wear, the product range of application is wide, has also highlighted simultaneously the advantage that touching technique is used.Along with the continuous development of touch key-press technology, perfect, its use field can be more and more wide, also will have increasing product and benefit from membrane keyboard.
Claims (8)
1. the control device of a touch-screen, it is made of touch screen controller, touch-screen and microcontroller, core is as main touch screen controller with touch sensible button chips W TC6508BSI, by 8 independently the capacitive transducer input channel detect changes in capacitance on the touch key-press inductive disks, and discern effective touch of finger according to a series of high-efficient algorithm, simultaneously in conjunction with various conductive tapes to enlarge its touch sensible scope; Touch-screen then adopts the high temperature resistant glass screen panel that can play protection again; Microcontroller adopts the AVR single-chip microcomputer that the data message of touch sensible is detected in real time, has judged whether that button presses, and has made corresponding processing.
2. the control device of touch-screen as claimed in claim 1, it is characterized in that: described touch sensible chips W TC6508B is inner integrated 8 passage capacitance measurement circuits, self-calibration circuit and the risc processor of autonomous Design, for the user provides the man-machine interface scheme of 8 capacitance touch induced keys, can provide reliable performance and wide range of application; Adopt special waterproofing design simultaneously.
3. the control device of touch-screen as claimed in claim 1, it is characterized in that: described touch sensible chips W TC6508B adopts adjacent key inhibition technology, can prevent the misoperation of adjacent key, and the sensitivity that can change all passages by the value of regulating 1 capacitor C sel reaches best touch sensible effect to adapt to the panel of different-thickness.
4. the control device of touch-screen as claimed in claim 1, it is characterized in that: described expansion touch sensible scope, then adopt the stronger flexible conductive film of penetrability to come the position of touch sensitive, can better meet the demand of key induced area size and the requirement of brightness like this.
5. the control device of touch-screen as claimed in claim 1; it is characterized in that: described touch-screen then adopts glass screen panel attractive in appearance, that transparent effect can play protection by force again; can better improve the class of this device so in appearance, also provide more facility simultaneously for design.
6. the control device of touch-screen as claimed in claim 1, it is characterized in that: described employing AVR single-chip microcomputer detects the information of touch sensible, in order to save hardware resource, only read button data in the design by 2 line serial line interfaces, therefore require just to may be read into key information as long as by the common IO port on the single-chip microcomputer, and according to corresponding sequential.
7. the control device of touch-screen as claimed in claim 1, it is characterized in that: described touch-screen control device also can carry out online programmable in addition, and the implement device online upgrading upgrades.
8. the control device of touch-screen as claimed in claim 1 is characterized in that: described touch-screen control device carries out sound by hummer to last electrical information, key information to be reported, and image is concrete more to make whole device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202482294U CN202041929U (en) | 2010-07-06 | 2010-07-06 | Touch screen control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202482294U CN202041929U (en) | 2010-07-06 | 2010-07-06 | Touch screen control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041929U true CN202041929U (en) | 2011-11-16 |
Family
ID=44969366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202482294U Expired - Fee Related CN202041929U (en) | 2010-07-06 | 2010-07-06 | Touch screen control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609145A (en) * | 2012-02-16 | 2012-07-25 | 上海浩元集成系统有限公司 | Penetration type control device of touch screen |
| CN103143983A (en) * | 2013-03-12 | 2013-06-12 | 深圳市瑞旸科技有限公司 | Automatic intelligent tapping equipment |
| CN114436081A (en) * | 2020-11-03 | 2022-05-06 | 奥的斯电梯公司 | Control device, control device false touch prevention method and elevator system |
-
2010
- 2010-07-06 CN CN2010202482294U patent/CN202041929U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609145A (en) * | 2012-02-16 | 2012-07-25 | 上海浩元集成系统有限公司 | Penetration type control device of touch screen |
| CN103143983A (en) * | 2013-03-12 | 2013-06-12 | 深圳市瑞旸科技有限公司 | Automatic intelligent tapping equipment |
| CN114436081A (en) * | 2020-11-03 | 2022-05-06 | 奥的斯电梯公司 | Control device, control device false touch prevention method and elevator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fujian anmingsi Intelligent Technology Co., Ltd. Assignor: Lin Ximing Contract record no.: 2014350000062 Denomination of utility model: Touch screen control device Granted publication date: 20111116 License type: Exclusive License Record date: 20140617 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: ANMINGSI INTELLIGENT CO., LTD. Free format text: FORMER OWNER: LIN XIMING Effective date: 20150706 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150706 Address after: 350003, Gulou District, Fujian Province, 89 software Avenue, Fuzhou Software Park, B District, building 12, building three, Reuters network, Fuzhou Patentee after: Anmingsi intelligent Co. Ltd. Address before: 350001, room 2, light 187, Lake East Road, 405 Gulou East Road, Fujian, Fuzhou Patentee before: Lin Ximing |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 350003, Gulou District, Fujian Province, 89 software Avenue, Fuzhou Software Park, B District, building 12, building three, Reuters network, Fuzhou Patentee after: ANMINGSI CORPORATION Address before: 350003, Gulou District, Fujian Province, 89 software Avenue, Fuzhou Software Park, B District, building 12, building three, Reuters network, Fuzhou Patentee before: Anmingsi intelligent Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20190706 |