CN204695281U - A kind of touch screen circuit based on gesture identification - Google Patents
A kind of touch screen circuit based on gesture identification Download PDFInfo
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- CN204695281U CN204695281U CN201520429991.5U CN201520429991U CN204695281U CN 204695281 U CN204695281 U CN 204695281U CN 201520429991 U CN201520429991 U CN 201520429991U CN 204695281 U CN204695281 U CN 204695281U
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Abstract
The utility model discloses a kind of touch screen circuit based on gesture identification, relate to the touch technology of display screen, be intended to the problem not supporting multi-point touch, quick abrasion solving the existence of existing resistance touch screen.The technological means that the utility model adopts comprises gesture identification circuit, data processing unit, display screen and power module; Described power module is used for powering for gesture identification circuit, data processing unit and display screen; Described gesture identification circuit has signal with data processing unit and is connected, and described display screen and data processing unit have signal and be connected.
Description
Technical field
The utility model relates to the touch technology of display screen, especially a kind of touch screen circuit based on gesture identification.
Background technology
Existing touch screen is mainly divided into electric resistance touch screen and capacitance touch screen two class.Wherein touch screens divides two-layer, and centre is separated with spacer.Collide with each other when two-layer, electric current just can have an impact, and touch screens touch chip calculates the data between strength and electric current, and evaluation screen is which position pressurized, and makes control reaction.Because resistance-type screen needs upper and lower two-layer collision rift just can react.Therefore, pressurized when 2 while, the pressure of screen becomes uneven, causes touch-control to occur error.Such principle result in touch screens and is difficult to realize multi-point touch, even achieve multi-point touch by technological means, sensitivity aspect is also not easy adjustment, often there will be A point sensitive, the phenomenon that B point is blunt.
In addition, because the touch-screen of resistance-type is owing to needing certain pressure, the time has grown the wearing and tearing easily causing surfacing, or two-layer following the string and cause the problem of loose contact to occur up and down, therefore can affect the normal service life of product.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of touch screen circuit based on gesture identification.
The technological means that the utility model adopts comprises gesture identification circuit, data processing unit, display screen and power module;
Described power module is used for powering for gesture identification circuit, data processing unit and display screen;
Described gesture identification circuit has signal with data processing unit and is connected, and described display screen and data processing unit have signal and be connected.
Further, described power module comprises 12V direct supply and DC-to-DC change-over circuit; Described 12V direct supply is used for powering to display screen, described 12V direct supply also has with DC-to-DC change-over circuit and is electrically connected, described DC-to-DC change-over circuit is used for 12V direct current to be converted to 3.3V direct current, and powers to gesture identification circuit, data processing unit.
Further, described gesture identification circuit comprises the signal acquisition circuit of front end and the signal recognition circuit of rear end; Wherein signal acquisition circuit comprises electric field transmitted electrode and electric field reception antenna, and described electric field transmitted electrode is between circuit board top layer and insulating panel, and electric field reception antenna is positioned at circuit board bottom; Electric field reception antenna and signal recognition circuit have signal and are connected, and described signal recognition circuit and data processing unit have signal and be connected.
Further, described electric field transmitted number of electrodes is 5, and wherein 4 electric field transmitted electrodes lay respectively on 4 limits of a rectangle, and wherein 1 electric field transmitted electrode is positioned at described rectangular center.。
Further, described electric field transmitted electrode is for generation of electric field, electric field reception antenna is for detecting electric field conversion and testing result being sent to signal recognition circuit, signal recognition circuit is used for according to electric field conversion and then the touch control gesture identifying user, and the gesture information that output look-at-me and preservation detect when touch control gesture being detected.
Further, described data processing unit is used for from gesture identification circuit, reading gesture information after the look-at-me receiving the output of gesture identification circuit, and controls display screen display corresponding content according to gesture information.
Further, described display screen is electric resistance touch screen.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1. the utility model adopts gesture identification circuit to build touch screen circuit, achieves gesture and controls display screen, and solving electric resistance touch screen can only single-point touch or multi-point touch be the bad problem of sensitivity.
2. the utility model controls according to gesture, without the need to realizing controlling by the acting force on screen, decreasing the wearing and tearing of screen, extending the life-span of screen.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Fig. 2 is the scheme of installation of gesture identification circuit electrode in the utility model.
Fig. 3 is the mounting structure side view of gesture identification circuit electrode in the utility model.
Mark in figure: 1 is circuit board; 2 is electric field transmitted electrode; 3 is insulating panel; 4 is electric field reception antenna.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model embodiment comprises gesture identification circuit, data processing unit, display screen and power module.
Described power module is used for powering for gesture identification circuit, data processing unit and display screen.
Described gesture identification circuit has signal with data processing unit and is connected, and described display screen and data processing unit have signal and be connected.
In the present embodiment, described power module comprises 12V direct supply and DC-to-DC change-over circuit; Described 12V direct supply is used for powering to display screen, described 12V direct supply also has with DC-to-DC change-over circuit and is electrically connected, described DC-to-DC change-over circuit is used for 12V direct current to be converted to 3.3V direct current, and powers to gesture identification circuit, data processing unit.In other embodiments, DC-DC circuit is Switching Power Supply.
The gesture identification circuit that the present embodiment adopts is the chip of MGC3130 model.It comprises the signal acquisition circuit of front end and the signal recognition circuit of rear end.
See Fig. 2,3, signal acquisition circuit comprises 5 electric field transmitted electrodes 2 and electric field reception antenna 4, and described 4 electrodes 2 are between circuit board 1 top layer and insulating panel, and electric field reception antenna 4 is positioned at circuit board 1 bottom; Electric field reception antenna 4 and signal recognition circuit have signal and are connected, and described signal recognition circuit and data processing unit have signal and be connected.
Wherein, 4 electrodes lay respectively on 4 limits of rectangle, and surround a rectangular area, another electrode is positioned at the middle position of rectangular area.Insulating panel selects face glass usually.Electrode generates an electric field, electric field change is caused when pointing and sliding on glass panels, testing result is also transferred to the signal recognition circuit of rear end by electric field reception antenna detection electric field change, signal recognition circuit determines direction and the position of finger sliding according to the change of electric field, and this information is preserved in register in the chips as gesture information.This chip also has a look-at-me output terminal, when gesture motion being detected, produces look-at-me.
In other embodiments, gesture identification circuit is the chip of SI1143 model.
Set forth the principle of work of the present embodiment below.
After circuit powers on, there is electric field between electrode, when the finger of user slides on glass panels, gesture identification circuit evolving interrupts and is preserved by the gesture information recognized.After data processing unit receives the look-at-me of gesture identification circuit output, read gesture information, then control content corresponding to display screen display, as picture switching etc. according to gesture information.
Described display screen in the present embodiment can be the display screen only having Presentation Function, as LED display, also can be the display screen with touch control function, as electric resistance touch screen or capacitance touch screen.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. based on a touch screen circuit for gesture identification, it is characterized in that, comprise gesture identification circuit, data processing unit, display screen and power module;
Described power module is used for powering for gesture identification circuit, data processing unit and display screen;
Described gesture identification circuit has signal with data processing unit and is connected, and described display screen and data processing unit have signal and be connected.
2. a kind of touch screen circuit based on gesture identification according to claim 1, it is characterized in that, described power module comprises 12V direct supply and DC-to-DC change-over circuit; Described 12V direct supply is used for powering to display screen, described 12V direct supply also has with DC-to-DC change-over circuit and is electrically connected, described DC-to-DC change-over circuit is used for 12V direct current to be converted to 3.3V direct current, and powers to gesture identification circuit, data processing unit.
3. a kind of touch screen circuit based on gesture identification according to claim 1, it is characterized in that, described gesture identification circuit comprises the signal acquisition circuit of front end and the signal recognition circuit of rear end; Wherein signal acquisition circuit comprises electric field transmitted electrode and electric field reception antenna, and described electric field transmitted electrode is between circuit board top layer and insulating panel, and electric field reception antenna is positioned at circuit board bottom; Electric field reception antenna and signal recognition circuit have signal and are connected, and described signal recognition circuit and data processing unit have signal and be connected.
4. a kind of touch screen circuit based on gesture identification according to claim 3, it is characterized in that, described electric field transmitted number of electrodes is 5, and wherein 4 electric field transmitted electrodes lay respectively on 4 limits of a rectangle, and wherein 1 electric field transmitted electrode is positioned at described rectangular center.
5. a kind of touch screen circuit based on gesture identification according to claim 3, it is characterized in that, described electric field transmitted electrode is for generation of electric field, electric field reception antenna is for detecting electric field change and testing result being sent to signal recognition circuit, signal recognition circuit is used for the touch control gesture identifying user according to electric field conversion, and the gesture information that output look-at-me and preservation detect when touch control gesture being detected.
6. a kind of touch screen circuit based on gesture identification according to claim 5, it is characterized in that, described data processing unit is used for from gesture identification circuit, reading gesture information after the look-at-me receiving the output of gesture identification circuit, and carries out corresponding action according to gesture information control display screen.
7. a kind of touch screen circuit based on gesture identification according to claim 1, it is characterized in that, described display screen is electric resistance touch screen.
8. a kind of touch screen circuit based on gesture identification according to claim 1, is characterized in that, described gesture identification circuit is the chip of MGC3130 model or the chip of SI1143 model.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520429991.5U CN204695281U (en) | 2015-06-23 | 2015-06-23 | A kind of touch screen circuit based on gesture identification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520429991.5U CN204695281U (en) | 2015-06-23 | 2015-06-23 | A kind of touch screen circuit based on gesture identification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502574A (en) * | 2016-12-09 | 2017-03-15 | 成都前锋电子有限责任公司 | A kind of gestural control system and the gas heater containing the system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502574A (en) * | 2016-12-09 | 2017-03-15 | 成都前锋电子有限责任公司 | A kind of gestural control system and the gas heater containing the system |
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Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, high tech Zone, Chengdu 610041, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Province Patentee after: Houpu intelligent IOT Technology Co.,Ltd. Address before: 610041 No. 6, No. 1103, D District, 216 century South Road, Chengdu hi tech Zone, Sichuan, China Patentee before: CHENGDU HUAQI HOUPU ELECTRONIC TECHNOLOGY Co.,Ltd. |