CN213338696U - Interactive installation based on electric capacity touch-sensitive - Google Patents
Interactive installation based on electric capacity touch-sensitive Download PDFInfo
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- CN213338696U CN213338696U CN202022591139.1U CN202022591139U CN213338696U CN 213338696 U CN213338696 U CN 213338696U CN 202022591139 U CN202022591139 U CN 202022591139U CN 213338696 U CN213338696 U CN 213338696U
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Abstract
The utility model discloses an interactive installation based on electric capacity touch-sensitive relates to and man-machine interaction equipment technical field, is by picture model, touch electric capacity response portion, appearance value calculation processing portion, central control portion, sound broadcast portion and power constitution, picture model and touch electric capacity response portion touch-sensitive inductive connection, touch electric capacity response portion, appearance value calculation processing portion, central control portion and sound broadcast portion circuit connection in proper order, the power respectively with touch electric capacity response portion, appearance value calculation processing portion, central control portion and sound broadcast portion circuit connection; the picture model is positioned right above the touch capacitance sensing part. The utility model discloses an interactive installation based on electric capacity touch-sensitive to the picture model is as electric capacity two pole plates inter-plate dielectric structure's electric capacity response touch pad, through judging the appearance value, confirms whether touch, changes the change of appearance value into digital signal again, and then accomplishes the response discernment of broadcast music interactive, has increased interactive enjoyment for people's experience.
Description
The technical field is as follows:
the utility model relates to a human-computer interaction equipment technical field, concretely relates to interactive installation based on electric capacity touch-sensitive.
Background art:
the existing capacitive touch technology is widely applied, and is mostly applied to a human-computer interaction system, such as key touch input, instruction touch input, mobile phone touch input, touch input of other electronic devices, and the like. The capacitive touch sensing type utilizes the conductive characteristic of a human body, changes the capacitance value between two electrode plates when a finger performs touch activity, generates the change of the capacitance value, can detect the slight capacitance change through a capacitive touch sensing chip, and finishes the measurement of the touch activity in a capacitive mode. The existing capacitive touch sensing device is high in integration degree and integration degree, and is not flexible enough to be applied to an interaction device.
The utility model has the following contents:
the utility model aims at overcoming the weak point that above-mentioned prior art exists, and provide an interactive installation based on electric capacity touch-sensitive. The utility model mainly completes the function of identifying whether the finger touches the capacitance plate or not by the capacitance value of the capacitor; the utility model discloses an object in the simulation reality scene realizes the interactive feedback of touch.
The utility model discloses an interactive installation based on electric capacity touch-sensitive comprises picture model, touch electric capacity response portion, appearance value calculation processing portion, central control portion, sound broadcast portion and power, the picture model be connected with touch electric capacity response portion touch-sensitive, touch electric capacity response portion, appearance value calculation processing portion, central control portion and sound broadcast portion circuit connection in proper order, the power respectively with touch electric capacity response portion, appearance value calculation processing portion, central control portion and sound broadcast portion circuit connection; the picture model is positioned right above the touch capacitance sensing part.
As a further improvement of the utility model, the picture model is a plane model or a three-dimensional model.
As a further improvement of the utility model, the touch capacitance sensing part be touch capacitance identification copper foil.
As a further improvement of the present invention, the touch capacitor identification copper foil is 15cm x 15cm square and 0.06mm thick.
As a further improvement of the present invention, the capacitance value calculation processing unit is a capacitance value calculation chip.
As a further improvement of the utility model, the central control part is a central processing unit.
As a further improvement of the present invention, the sound playing unit is a sound player.
The capacity value calculating chip is an MPR121 chip produced by the Freescale semiconductor company; the central processing unit is an STM32F103B8T6 chip manufactured by Italian semiconductor Limited.
The utility model discloses an interactive installation based on electric capacity touch-sensitive to the picture model is as electric capacity two pole plates inter-plate dielectric structure's electric capacity response touch pad, through judging the appearance value, confirms whether touch, changes the change of appearance value into digital signal again, and then accomplishes the response discernment of broadcast music interactive, has increased interactive enjoyment for people's experience.
Description of the drawings:
fig. 1 is a flow chart of the operation of the capacitive touch sensing interaction device of the present invention;
fig. 2 is a schematic diagram of capacitance-based touch sensing.
In the figure; the experience person 1, the picture model 2, the touch capacitance sensing part 3 and the lead-out wire 4.
The specific implementation mode is as follows:
an interactive device based on capacitance touch induction comprises a picture model, a touch capacitance induction part, a capacitance value calculation processing part, a central control part, a sound playing part and a power supply, wherein the picture model is in touch induction connection with the touch capacitance induction part; the picture model is positioned right above the touch capacitance sensing part; the capacity value calculation processing part is a capacity value calculation chip; the central control part is a central processing unit; the touch capacitance sensing part is a touch capacitance identification copper foil, and the sound playing part is a sound player.
The picture model simulation appearance of an ancient clock, paste touch capacitance identification copper foil in picture model back region, touch capacitance identification copper foil be 15 cm's square, thickness be 0.06mm, when someone touched the response region of touch capacitance identification copper foil, central processing unit control sound player played the sound that the ancient clock was knocked out, formed interdynamic with the interactive experience person.
The picture model part mainly provides the appearance of lively image for interacting, strengthens interactive experience and feels, also provides the mounted position for touch-sensitive part simultaneously.
The touch capacitance sensing part uses a copper foil with the thickness of 0.06mm of a square of 15cm by 15cm as a capacitance sensing area, namely a polar plate of a capacitor. One corner of the copper foil is welded and led out by using an incoming line, and the lead-out wire 4 is connected with the touch capacitance identification copper foil.
The capacitance value calculation processing part mainly realizes the function of converting tiny capacitance value changes into digital signals, and the specific realization principle is that the changes of capacitance can cause the movement of charges on two electrode plates, and the capacitance value calculation chip judges the changes of capacitance values by using the movement of the charges. Thereby distinguishing whether it is static capacitance or fluctuating capacitance. And calculating the capacitance value of the fluctuation capacitor to judge whether a person performs touch operation.
The main working principle of capacitive touch sensing identification is shown in fig. 2, wherein 1 is a user performing touch operation, 2 is an intermediate picture model (non-conductive medium), 3 is a pasted touch capacitive identification copper foil, and 4 is a lead-out wire connected with a capacitance value calculation chip. The specific work flow is that, when someone touched and experienced, no matter be with finger or palm or the body carry out and be close picture model 1, the human body all will be regarded as a polar plate of electric capacity, assume to be electric capacity polar plate A, the copper foil of pasting behind the back of the picture this moment is just regarded as another polar plate B of electric capacity, electric capacity polar plate A and electric capacity polar plate B constitute a small electric capacity this moment, this moment because two polar plates charge, it has electric charge to remove to draw out on the wire this moment, the appearance value that links to each other with the wire other end calculates the chip and will carry electric charge outward, appearance value calculation chip, how much and the speed that electric charge removed that statistics electric charge removed, just can calculate the capacitance value at this moment. When an experiencer leaves the touch device, only the pole plate B is left on the capacitor pole plate, the condition of forming the capacitor is not met at the moment, the capacitor pole plate A is touched by a person, the charge on the capacitor pole plate A is pure, the capacitor begins to discharge, the charge flows back into the capacitance value calculation chip, the capacitance value of the capacitor at the moment is calculated by the capacitor chip through the charge, when the capacitance value is calculated, the capacitance value can be considered as zero farad because the condition of forming the capacitor is not met at the moment, the capacitance value calculation chip can also charge on the lead-out wire, then the calculation processing is continued, and whether the capacitance value is close to zero farad or not is finally confirmed, so that the fact that the interactive experiencer leaves the touch induction.
The working process completes the induction touch detection based on the capacitance, completes the conversion from the touch operation to the capacitance value change of the capacitance, and provides an accurate touch signal for the central controller.
The central control part mainly analyzes the data output by the capacity value calculation part in a digital form, judges whether an experiencer performs a touch action after analysis and calculation, and controls the sound playing module to play music through the IIC bus to form interactive experience if the experiencer performs the touch action. If not, a cyclic scan is performed to determine whether touch activity occurs.
The power supply part mainly and completely converts DC12V direct current output by a direct current power supply into DC5V to be supplied to each module for use, meanwhile, a 1A self-recovery fuse is added to the power supply part, a module in the module has the condition of short circuit and high current, the self-recovery fuse can quickly cut off the power supply, and serious consequences caused by heating are avoided.
And a sound playing part which is mainly responsible for completing data communication with the central control part, and mainly completes transmission of a playing state and reception of a played instruction. And simultaneously, the driving work of the loudspeaker is also finished.
Claims (7)
1. An interactive device based on capacitance touch induction is composed of a picture model, a touch capacitance induction part, a capacitance value calculation processing part, a central control part, a sound playing part and a power supply, and is characterized in that the picture model is in touch induction connection with the touch capacitance induction part, the capacitance value calculation processing part, the central control part and the sound playing part are sequentially in circuit connection, and the power supply is respectively in circuit connection with the touch capacitance induction part, the capacitance value calculation processing part, the central control part and the sound playing part; the picture model is positioned right above the touch capacitance sensing part.
2. The interactive device based on capacitive touch sensing of claim 1, wherein the pictorial model is a planar model or a three-dimensional model.
3. The interactive device based on capacitive touch sensing of claim 1, wherein the touch capacitive sensing portion is a touch capacitive identification copper foil.
4. The interactive device based on capacitive touch sensing of claim 3, wherein the touch capacitive recognition copper foil is 15cm by 15cm square with a thickness of 0.06 mm.
5. The interactive device based on capacitive touch sensing of claim 1, wherein the capacitance calculation processing unit is a capacitance calculation chip.
6. The capacitive touch sensing-based interaction device of claim 1, wherein the central control unit is a central processing unit.
7. The interactive device based on capacitive touch sensing of claim 1, wherein the audio player is an audio player.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022591139.1U CN213338696U (en) | 2020-11-11 | 2020-11-11 | Interactive installation based on electric capacity touch-sensitive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022591139.1U CN213338696U (en) | 2020-11-11 | 2020-11-11 | Interactive installation based on electric capacity touch-sensitive |
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| CN213338696U true CN213338696U (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112286403A (en) * | 2020-11-11 | 2021-01-29 | 大庆思特传媒科技有限公司 | Interactive installation based on electric capacity touch-sensitive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112286403A (en) * | 2020-11-11 | 2021-01-29 | 大庆思特传媒科技有限公司 | Interactive installation based on electric capacity touch-sensitive |
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