Touch interaction device

Abstract

The utility model discloses a kind of touch interaction equipment, the device includes physical object and the base for placing the physical object, the base includes: power supply, for the component in the base power supply;Capacitive contact, protruding setting in the surface of the base;Signal transmitting circuit, connect the power supply and the capacitive contact, for output driving signal to the capacitive contact, to make that capacitive touch screen when the capacitive contact contact capacitive touch screen surface display the information matched by the physical object. Thus, in this embodiment, only make that capacitive contact contact capacitive touch screen can show the information matched by physical object, to realize the interaction of physical object and capacitive touch screen, improve the functional diversity of capacitive touch screen, enrich user experience.

Description

Technical Field

[0001] This utility model relates to the field of interactive technology, specifically to a touch interactive device. Background Technology

[0002] With technological advancements, most mobile smart terminals such as smartphones and tablets now support capacitive touch interaction. However, current human-computer interaction on mobile smart terminals primarily relies on finger touch and virtual interfaces, lacking a direct connection to real-world physical objects. The market urgently needs a solution for interaction between physical objects and the screen. Utility Model Content

[0003] In view of this, the purpose of this utility model embodiment is to provide a touch interaction device to realize the interaction between physical objects and capacitive touch screen, improve the functional diversity of capacitive touch screen, and enrich user experience.

[0004] This utility model embodiment provides a touch interaction device, the device including a physical object and a base for placing the physical object, wherein the base includes: A power source for supplying power to the components in the base; Capacitive contacts protrude from the surface of the base; A signal transmitting circuit, connected to the power supply and the capacitive contact, is used to output a drive signal to the capacitive contact so that the capacitive touch screen displays information matching the physical object when the capacitive contact contacts the surface of the capacitive touch screen.

[0005] Furthermore, the physical object is a chess piece or a doll.

[0006] Furthermore, the physical object and the base have a one-to-one correspondence, and the capacitive contacts corresponding to different physical objects have different settings.

[0007] Furthermore, the number of capacitive contacts is at least three, and the projection points of each capacitive contact on the surface of the base form a non-linear geometric shape.

[0008] Furthermore, the base also includes: A pressure sensor is disposed on the surface of the base for collecting sensing signals and sending the sensing signals to the signal transmitting circuit.

[0009] Furthermore, the base also includes: A driving device for driving the physical object to rotate.

[0010] Furthermore, the signal transmitting circuit includes: The control circuit is connected to the power supply. An oscillation circuit, connected to the power supply and the control circuit, is used to convert the power signal output by the power supply into an AC signal under the control of the control circuit; A driving circuit, connected to the oscillation circuit and the capacitor contact, is used to amplify the AC signal output by the oscillation circuit, generate the driving signal, and transmit the driving signal to the capacitor contact.

[0011] Furthermore, the signal transmitting circuit also includes: A modulation circuit, connected to the oscillation circuit and the drive circuit, is used to modulate the AC signal output by the oscillation circuit and transmit the modulated AC signal to the drive circuit.

[0012] Furthermore, the device also includes: A conversion circuit is used to boost or buck the power signal output by the power source and transmit the boosted or bucked power signal to the signal transmitting circuit.

[0013] Furthermore, the device also includes: A rectifier circuit, connected to the power supply, is used to rectify the power signal output by the power supply. A voltage regulator circuit, connected to the rectifier circuit and the signal transmitting circuit, is used to regulate the voltage of the rectified power signal and transmit the regulated power signal to the signal transmitting circuit.

[0014] The technical solution of this utility model embodiment sets up a physical object and a base for placing the physical object in a touch interaction device. The base is equipped with capacitive contacts, a power supply and a signal transmission circuit. The signal transmission circuit outputs a drive signal to the capacitive contacts. This allows the capacitive touch screen to display information matching the physical object placed on the base, achieving a place-and-use interactive effect, thereby realizing the interaction between the physical object and the capacitive touch screen, improving the functional diversity of the capacitive touch screen and enriching the user experience. Attached Figure Description

[0015] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of a touch interaction device according to an embodiment of the present utility model; Figure 2 This is another schematic diagram of a touch interaction device according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the capacitor contact distribution according to an embodiment of the present invention; Figure 4This is another schematic diagram of the capacitor contact distribution according to an embodiment of the present invention; Figure 5 This is another schematic diagram of the capacitor contact distribution according to an embodiment of the present invention; Figure 6 This is another schematic diagram of the capacitor contact distribution according to an embodiment of the present invention; Figure 7 This is another schematic diagram of the base according to an embodiment of the present utility model; Figure 8 This is a circuit diagram of a touch interaction device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the signal transmitting circuit according to an embodiment of the present invention; Figure 10 This is another schematic diagram of the signal transmitting circuit according to an embodiment of the present invention; Figure 11 This is another circuit diagram of the touch interaction device according to an embodiment of the present utility model.

[0016] In the diagram, 1. Physical object; 2. Base; 21. Capacitive contact; 22. Pressure sensor; 23. Signal transmission circuit; 231. Control circuit; 232. Oscillation circuit; 233. Drive circuit; 234. Modulation circuit; 24. Power supply; 25. Conversion circuit; 26. Rectifier circuit; 27. Voltage regulator circuit; 3. Capacitive touch screen. Detailed Implementation

[0017] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0018] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0019] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0021] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0022] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] Current human-computer interaction in mobile smart terminals primarily relies on finger touch and virtual interfaces, lacking direct interaction with real-world physical objects. While some existing technologies exist, such as single-point conductive objects, wireless connections like Bluetooth, and camera-based image recognition, they each suffer from significant drawbacks, including limited functionality, pairing requirements leading to power consumption, and susceptibility to environmental influences. Therefore, this invention aims to provide a touch-interaction device that enables seamless interaction between physical objects and a capacitive touchscreen, enhancing the functionality of capacitive touchscreens and enriching the user experience. Furthermore, the touch-interaction device in this embodiment can be widely applied in toys, education, and interactive entertainment, offering broad applicability and providing a superior interactive experience in various scenarios.

[0024] Before introducing the touch interaction device in this embodiment, let's first introduce the capacitive touchscreen that interacts with the touch interaction device. A capacitive touchscreen is typically made of multiple layers of laminated materials. From the outside in, the main structures are, in order, a protective glass, a touch sensor, and a display screen. The protective glass is the contact surface of the capacitive touchscreen and is usually made of chemically strengthened glass, which is hard, wear-resistant, and has good light transmittance. The display screen is the bottom layer of the display module, such as an LCD or OLED screen, responsible for displaying images and presenting interactive information. The touch sensor is the core component of the capacitive touchscreen and a key layer for realizing touch interaction functions; it is usually composed of transparent electrode patterns etched onto a transparent substrate (usually glass or PET film). Different interaction technologies (such as mutual capacitance, self-capacitance, surface capacitance, etc.) result in different electrode arrangements in the touch sensor, but the principle of interaction is similar.

[0025] Taking the common mutual capacitance interaction technology as an example, the electrodes in a touch sensor are typically fabricated into two arrays: driving electrodes (Tx) and sensing electrodes (Rx). These arrays are perpendicular to each other but separated by a tiny insulating gap, forming a series of intersections. Each intersection corresponds to a capacitive sensing point. When the capacitive touchscreen is not touched (i.e., in a steady state), the controller chip connected to the touchscreen sequentially sends a high-frequency AC signal to all the driving electrodes (Tx). Due to electric field coupling, a stable, tiny coupling capacitance (i.e., mutual capacitance) is formed at each intersection of the driving electrode and the sensing electrode (Rx), and a stable alternating electric field is established on the screen surface. The controller chip continuously measures the capacitance value of each intersection (i.e., the capacitive sensing point) and records this capacitance value as a reference value. When a conductor (well-grounded) comes into contact with the capacitive touchscreen, induced charges are generated on the screen surface due to electrostatic induction. These induced charges distort the original electric field distribution on the screen surface, causing a significant change in the original electric field energy distribution at the contact point, thereby resulting in a significant change in the capacitance value of the coupling capacitance at the intersection of the contact point. The controller chip determines the intersection point where the capacitance value changes compared to the reference value by scanning in real time, locates the contact position, and executes the corresponding interactive function and displays the corresponding interactive information based on the touch event corresponding to the coordinates of the contact position.

[0026] Figure 1-2 This is a schematic diagram of a touch interaction device according to an embodiment of the present invention. Figure 1-2As shown, the touch interaction device in this embodiment is used to interact with the capacitive touchscreen 3. The touch interaction device includes a physical object 1 and a base 2 for placing the physical object 1. The base 2 includes capacitive contacts 21, a signal transmitting circuit, and a power supply. The power supply powers the components in the base 2 to ensure their normal operation and to provide conditions for interaction between the touch interaction device and the capacitive touchscreen. The capacitive contacts 21 protrude from the surface of the base 2 and are used to contact the capacitive touchscreen 3. Upon contact, they disturb the electric field energy distribution on the surface of the capacitive touchscreen 3, and the capacitance at the contact point changes significantly. The signal transmitting circuit connects the power supply and the capacitive contacts 21, and outputs a drive signal to the capacitive contacts 21 so that the capacitive touchscreen 3 displays information matching the physical object 1 when the capacitive contacts 21 contact the surface of the capacitive touchscreen 3.

[0027] Optionally, such as Figure 1 As shown, physical object 1 in this embodiment can be a chess piece. For example... Figure 2 As shown, physical object 1 in this embodiment can be a doll. However, it should be understood that the physical object in this embodiment can be a chess piece or a doll, or it can be in other forms of existence, and there is no limitation on this.

[0028] Optionally, in this embodiment, the physical object and the base have a one-to-one correspondence, and the physical object and the base interact with the capacitive touchscreen through cooperation. For example, physical object A can only be placed on base a, and only physical object A can be placed on base a, in order to enable physical object A to interact with the capacitive touchscreen. This can improve the accuracy and fun of the interaction, and help to further enhance the user experience.

[0029] Optionally, the physical object and the base can be configured independently or as an integrated unit. When configured independently, the physical object can be freely removed from the base and placed on the base surface when interaction with the capacitive touchscreen is required. When configured as an integrated unit, the physical object is fixedly attached to the base surface. Regardless of the configuration, the contact surfaces between the physical object and the base are opposite to the contact surfaces between the capacitive contacts and the base. The capacitive contacts protrude from the lower surface of the base, while the physical object rests on the upper surface.

[0030] Furthermore, since the capacitive touchscreen interacts with multiple physical objects, in order to facilitate the capacitive touchscreen in distinguishing different interactive physical objects, this embodiment can characterize the identity information of the physical object by setting the capacitive contacts on the base corresponding to the physical object. The capacitive contacts on the base corresponding to different physical objects have different distribution settings. This allows the capacitive touchscreen to identify and distinguish different physical objects by recognizing the distribution position relationship of the capacitive contacts, and display matching display information according to the identity information of the physical object. While realizing the interaction between the physical object and the capacitive touchscreen, it improves the accuracy and fun of the interaction and enriches the user experience.

[0031] Meanwhile, in order to realize the interaction between the touch interaction device and the capacitive touch screen and to display interactive information to the user, the terminal device or remote database corresponding to the capacitive touch screen in this embodiment will pre-store the identity information corresponding to the physical object (the identity information is generated according to the distribution setting of the capacitive contacts on the base corresponding to the physical object, that is, the geometric parameters of the capacitive contacts) and the display information corresponding to the physical object (such as the simulated image corresponding to the physical object, the simulated actions of the simulated image in the virtual environment, etc.).

[0032] When the base of a touch-interactive device comes into contact with the capacitive touchscreen, the capacitive touchscreen determines the capacitive sensing point where the capacitance changes by scanning the capacitance of the capacitive sensing point, and determines the contact position between the touch-interactive device and the capacitive touchscreen based on the coordinates of the capacitive sensing point on the screen, which is the position of each capacitive contact point in the base; then, the positional relationship of each capacitive contact point is matched with the identity information pre-stored in the database to determine the identity of the physical object, obtain and display the display information corresponding to the physical object, thereby realizing the interaction between the touch-interactive device and the capacitive touchscreen.

[0033] Furthermore, for touch-interactive devices placed on capacitive touchscreens, users can move the devices freely, including panning and rotating them, as long as the capacitive contacts remain in continuous contact with the capacitive touchscreen during the movement. As the touch-interactive device moves on the capacitive touchscreen, the contact position between the capacitive contacts and the touchscreen changes accordingly, and the movement trajectory of the capacitive contacts mirrors the movement trajectory of the physical object.

[0034] During movement, the capacitive touchscreen continuously captures changes in the contact position of each capacitive touchpoint to identify the corresponding movement trajectory and drives screen rendering or updating of corresponding display information based on the movement trajectory. For example, when the detected movement trajectory of the capacitive touchpoint is a line, it indicates that the touch interaction device and the physical object within the touch interaction device have moved. At this time, the capacitive touchscreen will display a picture of the simulated image of the physical object walking in the virtual environment. When the detected movement trajectory of the capacitive touchpoint is a circle, it indicates that the touch interaction device and the physical object within the touch interaction device have rotated. At this time, the capacitive touchscreen will display a picture of the simulated image of the physical object rotating in the virtual environment. Thus, in this embodiment, by capturing the position changes of the capacitive touchpoints and feeding back corresponding display information based on the position changes, the display content can be updated according to the real-time pose information of the physical object. While realizing continuous interaction between the physical object and the capacitive touchscreen, it is beneficial to further enrich the interactive performance of the capacitive touchscreen and improve the user interactive experience. It also provides a core technological foundation for building an interactive ecosystem that integrates the physical and digital worlds, and promotes the development of interactive technology.

[0035] It should be understood that methods for recognizing touch positions, identifying physical objects based on touch positions, and acquiring and displaying information on capacitive touchscreens already exist in relevant existing technologies, and will not be elaborated upon here.

[0036] Optionally, the capacitive contacts in this embodiment can be made of conductive materials such as conductive rubber, metal, or conductive fabric. Different capacitive contacts 21 are insulated from each other. This ensures that interaction can be successfully achieved by contacting the capacitive touch screen through the capacitive contacts, while avoiding mutual interference between different capacitive contacts that may affect the interaction effect, thereby improving the user's interactive experience.

[0037] Optionally, such as Figure 3-6 As shown, in this embodiment, the number of capacitive contacts 21 on the base 2 is at least two. At least one of the geometric parameters, such as the number of capacitive contacts, distance, and the pattern formed by the connecting lines, differs on the bases corresponding to different physical objects. For example, two capacitive contacts protrude from the base a corresponding to physical object A, and the distance between the two capacitive contacts is d1; two capacitive contacts protrude from the base b corresponding to physical object B, and the distance between the two capacitive contacts is d2; three capacitive contacts protrude from the base c corresponding to physical object C, and the connection of the three capacitive contacts forms an obtuse triangle T1; three capacitive contacts protrude from the base b corresponding to physical object D, and the connection of the three capacitive contacts forms an acute triangle T2.

[0038] Furthermore, in this embodiment, the base has at least three capacitive contacts, and the projection points of each capacitive contact on the base surface form a non-linear geometric shape, that is, the pattern formed by the lines connecting the capacitive contacts is a non-linear geometric shape. Therefore, by setting the capacitive contacts on the base using the above method, the recognition of physical objects corresponding to different bases can be improved, thereby facilitating the capacitive touchscreen to more accurately and efficiently identify the interactive physical objects, improving interaction efficiency, and providing users with a better interactive experience.

[0039] Therefore, when a user has an interactive need, they only need to place the base containing the physical object on the capacitive touchscreen, or place the base on the capacitive touchscreen first and then place the physical object on the base. The capacitive touchscreen scans the capacitance of the capacitive sensing points and identifies the contact position between the capacitive contacts and the touchscreen based on the capacitive sensing points where the capacitance changes significantly. It then determines the identity of the physical object based on the distribution relationship of the contact positions (i.e., the distribution relationship of the capacitive contacts), queries and displays pre-stored interactive information corresponding to the physical object, thereby realizing the interaction between the physical object and the capacitive touchscreen. This achieves a "place and use" interactive effect, enhances the functional diversity of the capacitive touchscreen, and enriches the user experience. Furthermore, this embodiment enables interaction between a physical object and the capacitive touchscreen without pairing, resulting in higher interaction efficiency, a better user experience, and lower cost.

[0040] Optionally, such as Figure 7 As shown, the base 2 in this embodiment also includes a pressure sensor 22. The pressure sensor 22 is disposed on the contact surface between the physical object and the base 2, and is used to collect sensing signals and send these signals to a signal transmitting circuit, which then adjusts the driving signal according to the sensing signals. Different sensing signals correspond to different frequencies, phases, and / or amplitudes of the driving signals. Therefore, when a user presses the physical object, applying pressure, the pressure sensor automatically detects the corresponding sensing signal and triggers the signal transmitting circuit to adjust the driving signal, thereby changing the capacitance at the contact point between the capacitive contact and the capacitive touchscreen. This allows the capacitive touchscreen to detect the capacitance change and perceive the press operation, achieving graded interaction based on the pressure applied.

[0041] Furthermore, the pressure sensor in this embodiment can be a resistive, capacitive, or piezoelectric sensor (such as a piezoelectric ceramic sensor); the number of pressure sensors can be one or more; when there are multiple pressure sensors, the pressure sensors can be arranged in a ring array or other manner, for example, the shape formed by each pressure sensor is the same as the bottom shape of the physical object); specifically, in this embodiment, the type, number, and placement of the sensors can be selected according to the actual application scenario, and there are no restrictions on this.

[0042] Optionally, the base in this embodiment also includes a driving device (not shown in the figure). The driving device is used to drive the physical object to rotate. Further, the driving device can be implemented by a turntable or other available components set on the top of the base. Taking the drive turntable as an example, the turntable is rotatably connected to the base, and the physical object is placed on the turntable; when the user moves the physical object or the turntable, the physical object will rotate with the turntable due to the force, producing a rotation effect, bringing operational fun to the user and further improving the user experience.

[0043] Optionally, the base shell in this embodiment is also provided with an anti-slip sleeve, which can be made of materials such as plastic or rubber, so as to facilitate users to grip and move the touch interaction device and improve the user experience of the touch interaction device.

[0044] Furthermore, the circuit components involved in this embodiment will be described in detail below.

[0045] Figure 8 This is a circuit diagram of a touch-interactive device according to an embodiment of this utility model. Figure 8 As shown, in the touch interaction device, the power supply 24, signal transmitting circuit 23, and capacitive contact 21 are connected in sequence and disposed inside the base housing. The power supply 24 outputs a power signal to the signal transmitting circuit 23, which generates a drive signal under the action of the power signal and outputs the drive signal to the capacitive contact 21. The drive signal is an AC signal that is synchronized with or compatible with the capacitive touchscreen drive signal. Therefore, in this embodiment, by sending an AC signal to the capacitive contact through the signal transmitting circuit, the electric field at the contact point on the capacitive touchscreen changes when the capacitive contact touches the surface of the capacitive touchscreen. This allows the capacitive touchscreen to determine the identity information of the physical object in the touch interaction device corresponding to the capacitive contact based on the position of the capacitive sensing point with the changing electric field, and to display the matching display information. This achieves efficient interaction between the physical object and the capacitive touchscreen without pairing, allowing for immediate use and low cost, thus enhancing the functional diversity of the capacitive touchscreen and enriching the user experience.

[0046] Optionally, the power source in this embodiment can be a disposable battery or a rechargeable battery. The disposable battery can be an alkaline battery or a zinc-carbon battery, etc.; the rechargeable battery can be a storage battery, a supercapacitor, etc. The storage battery can be a lithium-ion battery, a nickel-metal hydride battery, or a nickel-cadmium battery, etc. There is no limitation on the type of battery.

[0047] Furthermore, when a rechargeable battery is used as the power source, the base in this embodiment also includes a charging interface. The charging interface charges the power source, allowing it to power other components in the touch-interactive device and ensure its normal operation. The charging interface can be any type available, such as a USB interface or a Type-C interface; there is no limitation on this.

[0048] Optionally, the touch interaction device in this embodiment further includes a power detection circuit, which is connected to a power source and used to detect the power level of the power source. Further, the touch interaction device may also include a display screen. The display screen is disposed on the outer surface of the base and is used to display the power level of the power source, allowing users to intuitively understand the power level and charge the power source in a timely manner. This ensures that users can interact with the capacitive touchscreen using a touch interaction device with sufficient power, thereby improving the interactive experience.

[0049] Figure 9 This is a schematic diagram of the signal transmitting circuit according to an embodiment of the present invention. Figure 8 As shown, the signal transmitting circuit 23 includes a control circuit 231, an oscillation circuit 232, and a drive circuit 233. The control circuit 231 is connected to the power supply 24 and the oscillation circuit 232, the oscillation circuit 232 is connected to the power supply 24 and the control circuit 231, and the drive circuit 233 is connected to the oscillation circuit 232 and the capacitive contact 21. When used in a touch-interactive device, the control circuit 231 controls the timing and parameters of the AC signal generated by the oscillation circuit 232, such as frequency, amplitude, and phase. The oscillation circuit 232, controlled by the control circuit 231, converts the power signal output by the power supply into an AC signal. The drive circuit 233 amplifies the AC signal output by the oscillation circuit 232, generates a drive signal, and transmits the drive signal to the capacitive contact 21, so that the capacitive contact has a sufficiently strong electric field to sense the capacitive touchscreen, thereby improving the recognition sensitivity of the capacitive touchscreen and increasing interaction efficiency.

[0050] Optionally, the control circuit in this embodiment can be implemented using pure hardware circuitry. The control circuit can employ signal conditioning circuitry, AGC loops (i.e., automatic gain control circuits), etc.; it can also be a microcontroller, DSP, programmable FPGA, or other digital processors, without limitation. Furthermore, the control circuit sets or dynamically adjusts the parameters of the AC signal generated by the oscillation circuit by outputting control signals (voltage or current) to the oscillation circuit.

[0051] Furthermore, the control circuit in this embodiment can be connected to a pressure sensor. After the pressure sensor acquires a sensing signal (voltage or current signal), it sends the acquired sensing signal to the control circuit. The control circuit outputs a corresponding control signal based on the sensing signal and / or changes in the sensing signal, and controls the oscillation circuit to generate a corresponding AC signal, thereby enabling the signal generation circuit to generate a drive signal corresponding to the current sensing signal. Specifically, at least one of the frequency, phase, and amplitude of the AC signal corresponding to different sensing signals is different, and at least one of the frequency, phase, and amplitude of the drive signal corresponding to different AC signals is also different. Therefore, this embodiment, through the above method, can automatically generate a matching drive signal based on the external force on the physical object, resulting in better interaction between the physical object and the capacitive touchscreen, and further enhancing the user experience.

[0052] Optionally, the oscillation circuit in this embodiment can be a circuit composed of a voltage-controlled oscillator (VCO), a voltage-controlled crystal oscillator (VCXO), a variable gain amplifier (VGA), and a fixed oscillator; the VCO can be an RC oscillator, an LC oscillator, or an integrated circuit such as a 555 timer. An RC oscillator uses a phase-shift network composed of resistors and capacitors to generate frequency-selective feedback, and uses an amplifier to compensate for losses and satisfy phase conditions to generate an AC signal of a specific frequency. An LC oscillator relies on a resonant circuit composed of inductors and capacitors to form positive feedback at a specific frequency, enabling the circuit to spontaneously generate an AC signal of a specific frequency.

[0053] Optionally, the driving circuit in this embodiment can be an operational amplifier-based circuit, a transistor-based amplifier circuit, or other circuits that can amplify the AC signal generated by the oscillation circuit to generate the driving signal for the capacitor contacts.

[0054] Figure 10 This is another schematic diagram of the signal transmitting circuit according to an embodiment of the present invention. Figure 10 As shown, the signal transmitting circuit 23 in this embodiment includes a control circuit 231, an oscillation circuit 232, a driving circuit 233, and a modulation circuit 234. The control circuit 231 is connected to the power supply 24 and the oscillation circuit 232; the oscillation circuit 232 is connected to the power supply 24 and the control circuit 231; the modulation circuit 234 is connected to the oscillation circuit 232 and the driving circuit 233; and the driving circuit 233 is connected to the modulation circuit 234 and the capacitor contact 21.

[0055] When the touch-interactive device is used, the control circuit 231 controls the timing and parameters of the AC signal generated by the oscillation circuit 232, such as frequency and amplitude. The oscillation circuit 232, controlled by the control circuit 231, converts the power signal output by the power supply into an AC signal. The modulation circuit 234 modulates the AC signal output by the oscillation circuit 232 and transmits the modulated AC signal to the drive circuit 233. The drive circuit 233 receives and amplifies the AC signal output by the modulation circuit 234, thereby generating a drive signal and transmitting it to the capacitive contact 21. This ensures that the capacitive contact has a sufficiently strong electric field to sense the capacitive touchscreen, thereby improving the recognition sensitivity of the capacitive touchscreen and increasing interaction efficiency.

[0056] It should be understood that the signal transmitting circuit and related circuits in the signal transmitting circuit given in this embodiment are only examples. The specific settings can be made according to the actual application scenario, and there is no limitation on this.

[0057] Optionally, the base in this embodiment also includes a switch circuit connected to a signal transmitting circuit. This switch circuit controls the on / off state of the internal circuitry of the touch interaction device, thereby switching the device's operating state between on and off. Specifically, when the touch interaction device needs to interact with the capacitive touchscreen, the switch circuit controls the internal circuitry of the device to conduct, and the signal transmitting circuit sends a drive signal to the capacitive contacts, at which point the touch interaction device is in the on state. When the touch interaction device is not interacting with the capacitive touchscreen, the switch circuit controls the internal circuitry of the device to disconnect, and the signal transmitting circuit does not send a drive signal to the capacitive contacts, at which point the touch interaction device is in the off state. Therefore, by setting up a switch circuit, intelligent circuit management can be achieved. While ensuring smooth interaction between the touch interaction device and the capacitive touchscreen, power consumption during non-interaction periods is reduced, thereby optimizing power consumption management, extending power supply lifespan, and improving the user experience.

[0058] Furthermore, in this embodiment, the switching circuit can be a mechanical switch, a circuit composed of a switching transistor, or other types of circuits; the examples given here are merely examples and are not intended to limit the scope of the invention.

[0059] Optionally, when a mechanical switch (such as a switch button) is used in the switching circuit, a portion of the mechanical switch protrudes from the base surface, while the other portion is located inside the base housing and connected between the power supply and the signal transmission circuit. The user can switch the operating state of the touch interaction device to on or off by operating the mechanical switch (such as pressing a switch button). When the touch interaction device is on, the internal circuitry is conductive, and the signal transmission circuit sends a drive signal to the capacitive contacts. When the capacitive contacts in the touch interaction device contact the capacitive touchscreen, the capacitive touchscreen automatically displays the interactive information of the physical objects within the touch interaction device. When the touch interaction device is off, the internal circuitry is open, and the signal transmission circuit does not send a drive signal to the capacitive contacts. Therefore, even if the capacitive contacts in the touch interaction device contact the capacitive touchscreen, the capacitive touchscreen will not display the interactive information of the physical objects within the touch interaction device. Thus, in this embodiment, the user only needs to operate the movable switch to quickly put the touch interaction device into working mode and interact with the capacitive touchscreen, which helps improve interaction efficiency and user experience.

[0060] Optionally, when the switching circuit uses a switching transistor (such as a MOSFET switching circuit), this embodiment can control the on / off state of the internal circuit of the touch interaction device by detecting the trigger signal of the switching circuit. When the trigger signal of the switching circuit is detected, the internal circuit of the touch interaction device is turned on, and the touch interaction device enters the working state.

[0061] Furthermore, considering that users may place physical objects on the base or place the base on the capacitive touchscreen when they have interactive needs, causing the capacitive contacts of the base to contact the capacitive touchscreen, the trigger signal of the switching circuit in this embodiment can be determined based on the placement state of the physical object on the base and / or the contact state between the capacitive contacts of the base and the capacitive touchscreen. When the physical object is detected to be placed on the base and / or the capacitive contacts of the base are in contact with the capacitive touchscreen, a trigger signal is generated for the switching circuit. This trigger signal activates the switching circuit, which in turn activates the internal circuitry of the touch interaction device, putting the touch interaction device into an on state. Conversely, when the physical object is detected to have left the base or the capacitive contacts of the base are no longer in contact with the capacitive touchscreen, the switching circuit is deactivated, preventing the internal circuitry of the touch interaction device from conducting, and putting the touch interaction device into a off state. Therefore, this embodiment automatically detects user interaction needs using the above method and automatically controls the working state of the touch interaction device based on these needs. This allows the touch interaction device to quickly enter a working state without user intervention, facilitating user interaction with the capacitive touchscreen and improving interaction efficiency and user experience.

[0062] Specifically, the placement of the physical object on the base can be determined by the pressure sensor on the base. When the user places the physical object on the base, the object's weight causes the pressure sensor to detect a corresponding pressure signal. During use, if the pressure sensor detects this pressure signal, it can be determined that the physical object is placed on the base. At this time, the switch circuit is triggered, and the touch interaction device enters the on state. Thus, in this embodiment, the working state of the touch interaction device is controlled by automatically detecting the placement state of the physical object. This allows the touch interaction device to quickly enter the working state without user operation, facilitating user interaction with the capacitive touchscreen and improving interaction efficiency and user experience.

[0063] The contact state between the base capacitive contacts and the capacitive touchscreen can be controlled by installing contact sensors (such as pressure sensors or image sensors) on the capacitive contacts. When the contact sensor detects contact between the base capacitive contacts and the capacitive touchscreen, it triggers a switching circuit, and the touch interaction device enters the on state. Therefore, this embodiment controls the working state of the touch interaction device by automatically detecting the contact state between the base capacitive contacts and the capacitive touchscreen. This allows the touch interaction device to quickly enter the working state without user intervention, facilitating user interaction between the touch interaction device and the capacitive touchscreen, improving interaction efficiency and user experience.

[0064] Optionally, the base in this embodiment is also equipped with an indicator light, which is used to indicate the working status of the touch interaction device. Optionally, the indicator light can be an LED or other type, and different display effects, such as brightness and color, can represent the corresponding usage status. For example, the indicator light is on when the touch interaction device is on, and off when the touch interaction device is off. Therefore, this embodiment displays the working status of the touch interaction device, allowing users to quickly understand its working status and facilitating interaction with the capacitive touchscreen, thus improving the user experience.

[0065] Optionally, to better realize the interaction between physical objects and the capacitive touchscreen in the touch interaction device, the touch interaction device in this embodiment also includes a conversion circuit. The conversion circuit is connected between the power supply and the signal transmitting circuit, and is used to boost or buck the power signal output by the power supply, and transmit the boosted or bucked power signal to the signal transmitting circuit. Therefore, by converting the power supply output voltage through the conversion circuit in this embodiment, the signal transmitting circuit can generate a driving signal more suitable for the interaction between the capacitive contacts and the capacitive touchscreen based on the converted voltage, thereby improving the interaction efficiency.

[0066] Furthermore, the conversion circuit in this embodiment can be any one of the following: boost topology, buck topology, buck-boost topology, Zeta topology, Sepic topology, Cuk topology, flyback converter, forward converter, push-pull converter, half-bridge converter, full-bridge converter, and LLC converter. There is no limitation on this.

[0067] Optionally, the touch interaction device in this embodiment further includes a rectifier circuit and a voltage regulator circuit. The rectifier circuit is connected to the power supply and is used to rectify the power signal output by the power supply. The voltage regulator circuit is connected to the rectifier circuit and the signal transmitting circuit, and is used to regulate the voltage of the rectified power signal and transmit the regulated power signal to the signal transmitting circuit. Therefore, by rectifying and regulating the power supply output voltage through the rectifier circuit and the voltage regulator circuit in this embodiment, the power supply output voltage becomes more stable and pure, resulting in a more stable and reliable drive signal generated by the signal transmitting circuit. This leads to a more stable and reliable interaction between the touch interaction device and the capacitive touchscreen based on the drive signal, resulting in better interaction performance and a superior user experience.

[0068] Furthermore, the rectifier circuit in this embodiment can be a bridge rectifier, a full-wave rectifier, or other types of circuits; the voltage regulator circuit can be an integrated voltage regulator module (such as an AC-DC power adapter), a switching regulator, etc.; there are no restrictions on this.

[0069] Figure 11 This is another circuit diagram of the touch interaction device according to an embodiment of this utility model. Figure 11As shown, the touch interaction device includes a power supply 24, a conversion circuit 25, a rectifier circuit 26, a voltage regulator circuit 27, a signal transmitting circuit 23, and a capacitive contact 21 connected in sequence. In use, the conversion circuit 25 boosts or bucks the power signal output from the power supply 24 and transmits the boosted or bucked power signal to the rectifier circuit 26. The rectifier circuit 26 rectifies the power signal output from the power supply and transmits the rectified signal to the voltage regulator circuit 27. The voltage regulator circuit 27 regulates the rectified power signal and transmits the regulated power signal to the signal transmitting circuit 23. Under the action of the power signal, the signal transmitting circuit 23 generates an AC signal synchronized with or compatible with the capacitive touchscreen driving signal, i.e., a driving signal, and outputs the driving signal to the capacitive contact 21. When the capacitive contact touches the surface of the capacitive touchscreen, the electric field at the contact point on the capacitive touchscreen changes. Capacitive touchscreens identify the contact position between capacitive contacts and the touchscreen by scanning the capacitance of capacitive sensing points. Based on the distribution relationship of the contact positions (i.e., the distribution relationship of capacitive contacts), they determine the identity of the physical object, query and display pre-stored interactive information corresponding to the physical object, thereby achieving efficient interaction between the physical object and the capacitive touchscreen without pairing, allowing for immediate use and low cost. This enhances the functional diversity of capacitive touchscreens and enriches the user experience.

[0070] It should be understood that the circuits related to the touch interaction device given in this embodiment are only examples. The specific circuits can be set according to the actual application scenario so that users can interact with the capacitive touch screen through the touch interaction device. There are no limitations on this.

[0071] The technical solution of this utility model embodiment sets up a physical object and a base for placing the physical object in a touch interaction device. The base is equipped with capacitive contacts, a power supply and a signal transmission circuit. The signal transmission circuit outputs a drive signal to the capacitive contacts. The device can display information matching the physical object placed on the base through the capacitive touch screen when the capacitive contacts only need to contact the capacitive touch screen. This enables the interaction between the physical object and the capacitive touch screen that is ready to use without pairing. It improves the functional diversity of the capacitive touch screen, increases the interaction efficiency, improves the user experience, and is inexpensive.

[0072] It should be noted that the capacitive contacts in the touch interaction device described in this embodiment are driven by an active method to achieve interaction between the touch interaction device and the capacitive touch screen. However, it should be understood that the capacitive contacts in this embodiment can also be passive conductors. In this case, the base can also be set as a conductor. When the user touches the base, a circuit loop is formed through the capacitive contacts, the base, and the human body as natural conductors. The interaction is achieved by using the circuit loop to induce a connection between the capacitive contacts and the capacitive touch screen when the capacitive contacts touch the capacitive touch screen.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A touch-screen interactive device, characterized in that, The device includes a physical object and a base for placing the physical object, wherein the base includes: A power source for supplying power to the components in the base; Capacitive contacts protrude from the surface of the base; A signal transmitting circuit, connected to the power supply and the capacitive contact, is used to output a drive signal to the capacitive contact so that the capacitive touch screen displays information matching the physical object when the capacitive contact contacts the surface of the capacitive touch screen.

2. The device according to claim 1, characterized in that, The physical object is a chess piece or a doll.

3. The device according to claim 1, characterized in that, The physical object and the base have a one-to-one correspondence, and the capacitive contacts corresponding to different physical objects have different settings.

4. The device according to claim 1, characterized in that, The number of capacitor contacts is at least three, and the projection points of each capacitor contact on the surface of the base form a non-linear geometric shape.

5. The device according to claim 1, characterized in that, The base also includes: A pressure sensor is disposed on the surface of the base for collecting sensing signals and sending the sensing signals to the signal transmitting circuit.

6. The device according to claim 1, characterized in that, The base also includes: A driving device for driving the physical object to rotate.

7. The device according to claim 1, characterized in that, The signal transmitting circuit includes: The control circuit is connected to the power supply. An oscillation circuit, connected to the power supply and the control circuit, is used to convert the power signal output by the power supply into an AC signal under the control of the control circuit; A driving circuit, connected to the oscillation circuit and the capacitor contact, is used to amplify the AC signal output by the oscillation circuit, generate the driving signal, and transmit the driving signal to the capacitor contact.

8. The device according to claim 7, characterized in that, The signal transmitting circuit also includes: A modulation circuit, connected to the oscillation circuit and the drive circuit, is used to modulate the AC signal output by the oscillation circuit and transmit the modulated AC signal to the drive circuit.

9. The device according to claim 1, characterized in that, The device also includes: A conversion circuit is used to boost or buck the power signal output by the power source and transmit the boosted or bucked power signal to the signal transmitting circuit.

10. The device according to claim 1, characterized in that, The device also includes: A rectifier circuit, connected to the power supply, is used to rectify the power signal output by the power supply. A voltage regulator circuit, connected to the rectifier circuit and the signal transmitting circuit, is used to regulate the voltage of the rectified power signal and transmit the regulated power signal to the signal transmitting circuit.

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