Man-machine interaction device and vehicle

Abstract

The utility model discloses a man-machine interaction device and a vehicle, and relates to the technical field of electronic equipment, and the man-machine interaction device comprises a piezoelectric assembly and a control module. The piezoelectric assembly is configured to generate a first electric signal in response to external vibration; the control module comprises a control unit and a signal analysis assembly, the signal analysis assembly is connected with the piezoelectric assembly through a first transmission circuit, and the signal analysis assembly is connected with the control unit through a first communication circuit. Wherein the signal analysis assembly receives and analyzes the first electric signal through the first transmission circuit and transmits an analysis result to the control unit through the first communication circuit, and the control unit at least controls the working state of the signal analysis assembly based on the analysis result.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of electronic devices, and in particular to a human-computer interaction device and a vehicle. Background Technology

[0002] Human-computer interaction devices can be used to realize the input and output functions of vehicle terminals. In related technologies, MEMS microphones, ECM microphones, etc. are usually used in vehicles as input components of human-computer interaction devices to collect voice information. Utility Model Content

[0003] One embodiment of this application provides a human-computer interaction device and vehicle, which includes a piezoelectric component, a control module, and a signal analysis component. The piezoelectric component is used to sense external vibrations. Since the piezoelectric component is not easily affected by the environment (such as pollutants, air, or moisture) and has a fast response speed, it is beneficial to extend the service life of the human-computer interaction device, improve the response speed, and expand the application scenarios.

[0004] Another embodiment of this application provides a human-machine interaction device and vehicle, wherein different working modes are reused on a single piezoelectric component by setting a control module, thereby reducing redundant electronic components, thereby reducing space occupation and lowering costs.

[0005] Another embodiment of this application provides a human-machine interaction device and a vehicle, wherein a signal analysis component analyzes a first electrical signal generated by a piezoelectric component to obtain detailed analytical information about external vibrations, which is then used as the input basis for the control unit to control the working state of the signal analysis component, thereby enabling the piezoelectric component to switch its working mode in response to the information transmitted by the external vibrations.

[0006] Another embodiment of this application provides a human-computer interaction device and a vehicle, wherein the first transmission circuit includes at least two transmission lines with different polarities, such that a differential pressure signal can be formed between the two transmission lines. The differential pressure signal has good stability, is not easily affected by external factors, and can carry more information so that the identification output unit can analyze the more information transmitted by the first electrical signal through the differential pressure signal.

[0007] Another embodiment of this application provides a human-computer interaction device and vehicle, wherein a first control command instructs the signal processing unit to perform the working state, channel selection and audio identification, and a second control command instructs the power adjustment unit to perform power adjustment of the first electrical signal and instructs the output selection unit to perform channel selection, thereby realizing diverse output requirements.

[0008] Another embodiment of this application provides a human-computer interaction device and vehicle, wherein a second communication circuit is provided so that the control unit can directly receive a first electrical signal to sense external vibrations such as knocking and touching, so as to realize a vibration sensing mode; based on the signal analysis component receiving and analyzing the first electrical signal to realize a sound sensing mode, the vibration sensing mode and the sound sensing mode can be reused to realize the switching of multiple working modes.

[0009] Another embodiment of this application provides a human-machine interaction device and vehicle, wherein the strength of the electrical signal is limited by setting a voltage stabilizing unit, and / or the voltage of the electrical signal is adjusted by setting an operational amplifier unit to adapt to the operating parameters of the control unit and the signal processing unit, which can both protect the control unit and the signal processing unit and reduce signal distortion.

[0010] Another embodiment of this application provides a human-machine interaction device and a vehicle, wherein the control unit adjusts the connection or disconnection of the first transmission circuit and the second communication circuit through a controllable switch, thereby adjusting the transmission path of the first electrical signal so as to facilitate the switching of the human-machine interaction device between different working modes.

[0011] Another embodiment of this application provides a human-machine interaction device and a vehicle, wherein the control unit can also control the first transmission circuit and the second communication circuit to disconnect via a controllable switch, so as to avoid the second electrical signal backflow from adversely affecting the control unit and the signal analysis component.

[0012] Another embodiment of this application provides a human-machine interaction device and a vehicle, wherein an external audio source module or signal analysis component can generate a third electrical signal after the output of the second electrical signal is completed, and the control unit controls the signal analysis component to switch to a disabled state in response to the third electrical signal, and / or disconnects the first transmission circuit and connects the second communication circuit, thereby enabling the human-machine interaction device to work in vibration sensing mode and to acquire external vibration information in a timely manner.

[0013] Another embodiment of this application provides a human-computer interaction device and a vehicle, wherein the external vibration is air wave vibration, the human-computer interaction device has the ability to perceive sound by analyzing the air wave vibration, and can switch between the sound perception mode and other working modes.

[0014] Another embodiment of this application provides a human-computer interaction device and a vehicle, wherein the human-computer interaction device includes an external audio source module. Since the external audio source module is easy to replace and expand, the human-computer interaction device can be adapted to different external audio source modules, thus enriching the application scenarios of the human-computer interaction device.

[0015] Another embodiment of this application provides a human-computer interaction device and vehicle, wherein the signal parsing component includes a built-in storage unit, and the signal processing unit can obtain audio files from the built-in storage unit and convert them into a second electrical signal output. Since the built-in storage unit is located within the signal parsing component, access is more convenient, and the response is faster, thus improving the efficiency of human-computer interaction.

[0016] Another embodiment of this application provides a human-computer interaction device and vehicle, wherein the control unit is connected to an input component, and the operator can send a fourth electrical signal to the control unit through the input component. The control unit responds to the fourth electrical signal to control the working state of the signal parsing component, making the operation more flexible, enabling compatibility with different human-computer interaction methods, and supporting more diversified interaction methods.

[0017] Another embodiment of this application provides a vehicle and a vehicle, wherein a human-machine interaction device can be installed at a suitable position on the vehicle body as needed, making the deployment of the human-machine interaction device more convenient, so that the vehicle can realize a variety of human-machine interaction functions.

[0018] To achieve one or more of the above objectives, a first aspect of the embodiments of this application provides a human-computer interaction device including a piezoelectric component and a control module. The piezoelectric component is configured to generate a first electrical signal in response to external vibration; the control module includes a control unit and a signal parsing component. The signal parsing component is connected to the piezoelectric component via a first transmission circuit and connected to the control unit via a first communication circuit. The signal parsing component receives and parses the first electrical signal via the first transmission circuit and transmits the parsing result to the control unit via the first communication circuit. The control unit controls the operating state of the signal parsing component based at least on the parsing result.

[0019] In a second aspect of the implementation of this application, the vehicle provided in the embodiments of this application includes a vehicle body and a human-machine interaction device of the embodiments of this application. The vehicle body includes at least one structural member, which includes at least one type of body outer panel, interior panel and vehicle component. The vehicle component is connected to the body outer panel or interior panel. At least one structural member is connected to the human-machine interaction device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the layout of the human-computer interaction device provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram illustrating the layout of the analog-to-digital conversion unit in the human-computer interaction device provided in this application embodiment;

[0022] Figure 3 A schematic diagram illustrating the layout of the signal parsing component in the human-computer interaction device provided in this application embodiment;

[0023] Figure 4 A schematic diagram showing the layout of the adjustment components in the human-computer interaction device provided in the embodiments of this application;

[0024] Figure 5 A schematic diagram showing the layout of the output selection unit and the power adjustment unit in the human-computer interaction device provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the layout of the mating parts in the human-computer interaction device provided in the embodiments of this application;

[0026] Figure 7 A schematic diagram showing the layout of the operational amplifier unit and the voltage regulator unit in the human-computer interaction device provided in the embodiments of this application;

[0027] Figure 8 A schematic diagram showing the layout of controllable switches in a human-computer interaction device provided in an embodiment of this application;

[0028] Figure 9 A schematic diagram illustrating the layout of an external audio source module in a human-computer interaction device provided in an embodiment of this application;

[0029] Figure 10 A schematic diagram showing the layout of input components in a human-computer interaction device provided in an embodiment of this application;

[0030] Figure 11 This is a schematic diagram of the structure of a human-computer interaction device provided in an embodiment of this application;

[0031] Figure 12 This is a schematic diagram of another human-computer interaction device provided in an embodiment of this application.

[0032] Figure label:

[0033] 100-Piezoelectric component; 200-Control module; 210-Control unit; 220-Signal analysis component; 221-Signal processing unit; 222-Analog-to-digital conversion unit; 230-Adjustment component; 231-Power adjustment unit; 232-Output selection unit; 240-Controllable switch; 250-Built-in storage unit; 260-CAN transceiver; 300-Matching part; 400-Voltage stabilizing unit; 500-Operational amplifier unit; 600-External audio source module; 700-Input component; 800-Structural component; T1-First transmission circuit; T2-Second transmission circuit; S1-First communication circuit; S11-First sub-circuit; S12-Second sub-circuit; S2-Second communication circuit. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0035] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0036] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0037] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0038] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0039] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0040] This application provides a human-computer interaction device that can be applied to vehicles, smart devices, etc. The term "vehicle" or other similar terms used in this application broadly encompass motor vehicles: for example, passenger vehicles including SUVs, buses, trucks, and various commercial vehicles; water transport vehicles including various boats and ships, and aircraft; and including hybrid vehicles, electric vehicles, hybrid-electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from resources other than petroleum). Smart devices can include various devices capable of carrying computer programs. Examples include access control devices, camera equipment, smart home appliances, and smart terminals.

[0041] Taking vehicles as an example, vehicles typically have human-machine interface (HMI) devices installed to enable input and output functions for in-vehicle terminals. In some technical solutions, MEMS microphones or ECM microphones are used inside the vehicle as input components for these HMI devices to collect voice information, while these input components are rarely installed outside the vehicle to collect external voice information. Even when installed outside the vehicle, appropriate waterproof and dustproof structures need to be designed to protect these input components.

[0042] In other technical solutions, human-computer interaction devices use different components to implement input and output functions separately, resulting in redundant structures, large space requirements, and high costs. Moreover, when human-computer interaction devices use piezoelectric vibrators as input devices, they can only recognize simple interaction commands such as touch and press, making it difficult to achieve complex interactions and limiting their application scenarios.

[0043] Reference Figure 1 and Figure 3 The human-computer interaction device provided in this application includes a piezoelectric component 100 and a control module 200. The piezoelectric component 100 is configured to generate a first electrical signal in response to external vibration. The control module 200 includes a control unit 210 and a signal parsing component 220. The signal parsing component 220 is connected to the piezoelectric component 100 through a first transmission circuit T2 and to the control unit 210 through a first communication circuit T3. The signal parsing component 220 receives and parses the first electrical signal through the first transmission circuit T2 and transmits the parsing result to the control unit 210 through the first communication circuit T3. The control unit 210 controls the operating state of the signal parsing component 220 based at least on the parsing result.

[0044] In some embodiments, the piezoelectric component 100 is further configured to vibrate in response to a second electrical signal. The signal analysis component 220 is also connected to the piezoelectric component 100 via a second transmission circuit. In response to control by the control unit 210, the signal analysis component 220 outputs a second electrical signal to the piezoelectric component 100 via the second transmission circuit T1.

[0045] In this embodiment, the piezoelectric component 100 can generate current under deformation using the piezoelectric effect. That is, the piezoelectric component 100 generates a first electrical signal in response to external vibrations. For example, the piezoelectric component 100 deforms when pressed or struck, or deforms under the influence of air waves. The piezoelectric component 100 can also vibrate with current using the inverse piezoelectric effect, that is, the piezoelectric component 100 vibrates in response to a second electrical signal, which can be used to generate sound.

[0046] In this embodiment, the control module 200 includes electronic components such as a control unit 210 and a signal parsing component 220, as well as transmission circuits connecting the corresponding electronic components. It should be noted that the electronic components in the control module 200 are packaged as a single unit, which improves stability and facilitates miniaturization. Furthermore, the transmission circuits in this embodiment are only used to exemplify the transmission direction of the corresponding electrical signals and are not intended to limit their specific structure, positional relationships, or connection relationships.

[0047] In this embodiment, the second transmission circuit T1 may include multiple transmission lines to correspond to interfaces with different polarities of the piezoelectric component 100; the first transmission circuit T2 and the second transmission circuit T1 may be configured separately or integrated. The first communication circuit T3 may be a circuit with control functions, such as an Inter-Integrated Circuit (I2C) or a Serial Peripheral Interface (SPI).

[0048] In this embodiment, an electrical signal refers to a signal carrier that transmits information in the form of voltage or current and can change over time to carry and express information. The amplitude, frequency, or phase of the electrical signal can change over time to carry and transmit information. The electrical signal can be an analog signal, a digital signal, etc.

[0049] In this embodiment, the information transmitted by the second electrical signal can be vibration, sound effects, voice information, voiceprint information, etc., to drive the piezoelectric component 100 to vibrate, produce sound, or output voice information. Specifically, when the second electrical signal is used to drive the piezoelectric component 100 to vibrate, the second electrical signal can be used to transmit information such as vibration frequency, vibration time, and vibration amplitude; when the second electrical signal drives the piezoelectric component 100 to vibrate and produce sound, the second electrical signal can also be used to transmit information such as pitch, timbre, and loudness.

[0050] In this embodiment, the information transmitted by the first electrical signal may include at least one of the following: vibration frequency, vibration time, vibration amplitude, vibration waveform, and pressure difference information between different polarity interfaces of the piezoelectric component 100 when external vibration acts on the piezoelectric component 100. The control unit 210 can process the first electrical signal to analyze the source and type of the external vibration, such as the source being a living organism and the type being touch, knocking, collision, or voice information; or the source being a natural event and the type being rain, hail, or wind. The signal analysis component 220 can analyze the content contained in the voice information by analyzing the pressure difference information, etc.

[0051] In this embodiment, the second electrical signal is output by the signal analysis component 220 in response to the control of the control unit 210, and acts on the piezoelectric component 100 via the second transmission circuit T1. The piezoelectric component 100 vibrates in response to the second electrical signal. Correspondingly, the first electrical signal is generated by the piezoelectric component 100 and transmitted to the signal analysis component 220 via the first transmission circuit T2. The signal analysis component 220 receives and analyzes the first electrical signal, and transmits the analysis result to the control unit 210 via the first communication circuit T3.

[0052] In this embodiment of the application, the working state of the signal parsing component 220 may include an active state and a disabled state. The disabled state includes a sleep state, a high impedance state, a mute state, etc.; the active state includes an input state that is capable of or suitable for parsing the first electrical signal and an output state that is capable of or suitable for outputting the second electrical signal.

[0053] In this embodiment of the application, the control unit 210 may control the signal parsing component 220 and other electronic devices directly without responding to other electrical signals; or, the control unit 210 may control the signal parsing component 220 and other components in response to a first electrical signal; or, the control unit 210 may control the signal parsing component 220 and other components in response to electrical signals input from other electronic devices.

[0054] In the human-computer interaction device of this application embodiment, the piezoelectric component 100 can generate vibration in response to a second electrical signal to serve as an output device in human-computer interaction. The piezoelectric component 100 can also generate a first electrical signal in response to external vibration to serve as an input device in human-computer interaction. The same piezoelectric component 100 can realize input / output multiplexing, thereby simplifying the structure.

[0055] Based on this, the control module 200 includes a control unit 210 and a signal parsing component 220. The control unit 210 is connected to the signal parsing component 220 through a first communication circuit T3, and can control the working state of the signal parsing component 220. The signal parsing component 220 is connected to the piezoelectric component 100 through a second transmission circuit T1, thereby outputting a second electrical signal to the piezoelectric component 100 in response to the control of the control unit 210.

[0056] The control module 200 allows a single piezoelectric component 100 to reuse different operating modes, thereby reducing redundant electronic components, space occupation, and cost. Furthermore, the signal analysis component 220 is connected to the piezoelectric component 100 via the first transmission circuit T2 to receive the first electrical signal generated by the piezoelectric component 100. The signal analysis component 220 analyzes the first electrical signal generated by the piezoelectric component 100 to obtain detailed analytical information about external vibrations, and transmits the analysis results to the control unit 210. This detailed analytical information serves as the input basis for the control unit 210 to control the operating state of the signal analysis component 220, thus enabling the control unit 210 to switch the operating mode of the piezoelectric component 100 in response to the information transmitted by external vibrations. This allows for more detailed and specific human-computer interaction and expands application scenarios.

[0057] To facilitate the analysis of the first electrical signal and the output of the second electrical signal, refer to Figure 2 and Figure 3 In some possible embodiments of this application, the signal parsing component 220 includes a signal processing unit 221 and an analog-to-digital converter 222 connected to each other. The signal processing unit 221 is connected to the second transmission circuit T1 and the first communication circuit T3, respectively, and the analog-to-digital converter 222 is connected to the first transmission circuit T2. The signal processing unit 221 is configured to output a second electrical signal to the piezoelectric component 100 in response to a first control command from the control unit 210. The analog-to-digital converter 222 is used to convert the first electrical signal into a digital signal and transmit it to the signal processing unit 221. The signal processing unit 221 is configured to parse the converted first electrical signal and transmit the parsing result to the control unit 210. The first control command indicates at least one of the following: the operating state of the signal processing unit 221, the source of the sound source, and the audio identifier.

[0058] In this embodiment, the signal processing unit 221, in response to the control of the control unit 210, processes and acquires the audio source file to generate a second electrical signal, and transmits the first signal to the piezoelectric component 100; the signal processing unit 221 can also parse the first electrical signal and transmit the parsing result to the control unit 210. The signal processing unit 221 can be a digital signal processor (DSP), decoder, mixer, etc., and this embodiment does not impose any limitations on this.

[0059] In this embodiment, the analog-to-digital converter 222 is used to convert a continuous analog signal into a discrete digital signal, that is, to convert the first electrical signal in analog form generated by the piezoelectric component 100 into digital form and transmit it to the signal processing unit 221 so that the signal processing unit 221 can analyze the converted first electrical signal. The analog-to-digital converter 222 can be a successive approximation type, an integral type, a parallel comparison type, a voltage-to-frequency conversion type, etc., and this embodiment does not limit this.

[0060] In this embodiment, the first control command is issued by the control unit 210 to instruct the signal processing unit 221 to operate. The signal processing unit 221 may have operating states such as an active state and a disabled state, and the first control command is used to switch the operating state of the signal processing unit 221. Alternatively, the signal processing unit 221 is connected to at least two piezoelectric components 100, and the first control command can be used to instruct the piezoelectric component 100 that needs to vibrate, thereby achieving channel selection. Alternatively, the signal processing unit 221 is connected to both an external audio source module 600 and a built-in audio source module, and the first control command can be used to instruct the audio source to be either the external audio source module 600 or the built-in audio source module, and to instruct the signal processing unit 221 to obtain the corresponding audio file according to the audio identifier, thereby playing different audio content.

[0061] The human-computer interaction device of this application embodiment includes a signal processing unit 221 and a digital-to-analog converter. The digital-to-analog converter first processes the first electrical signal into a digital signal, which is then processed by the signal processing unit 221 for analysis, thus facilitating signal processing. The signal processing unit 221 responds to a first control command, enabling it to switch operating states and select a second electrical signal to output based on the sound source and audio identifier indicated by the first control command, adapting to the interaction scenario.

[0062] It should be noted that when the signal processing unit 221 outputs a second electrical signal to the piezoelectric component 100, the first transmission circuit T2 can be disconnected to shield the first electrical signal. Alternatively, in some possible embodiments of this application, the first transmission circuit T2 includes a transmission line corresponding to any polarity; the signal processing unit 221 still receives the first electrical signal while outputting the second electrical signal and compares the received first electrical signal with the output second electrical signal. If the comparison result (e.g., the matching degree between the characteristic value of the second electrical signal and the characteristic value of the first electrical signal is lower than a preset threshold) indicates the presence of external vibration input (e.g., detecting that a user is tapping or touching the piezoelectric component 100), then the output of the second electrical signal is stopped.

[0063] To facilitate the analysis of the first electrical signal, refer to... Figure 4 and Figure 5In some other possible embodiments of this application, the first transmission circuit T2 includes at least two transmission lines, each corresponding to a different polarity, and the first electrical signal includes the electrical signal transmitted by each transmission line.

[0064] In this embodiment, the first transmission circuit T2 is provided with transmission lines corresponding to the interfaces of the piezoelectric component 100 with different polarities. Since the voltages output by the piezoelectric component 100 with different polarities are not the same, there is a voltage difference in the electrical signals transmitted by the different transmission lines. The signal processing unit 221 integrates and processes the voltage difference signals transmitted by multiple different transmission lines, and can parse out more information carried by the first electrical signal, such as voice information.

[0065] For example, the first transmission circuit T2 includes two transmission lines, which are respectively connected to the positive and negative interfaces of the piezoelectric component 100.

[0066] The human-computer interaction device of this application embodiment includes a first transmission circuit T2 comprising at least two transmission lines with different polarities, such that a differential pressure signal can be formed between the two transmission lines. The differential pressure signal has good stability, is not easily affected by external factors, and can carry more information so that the identification output unit can analyze the more information transmitted by the first electrical signal through the differential pressure signal.

[0067] To achieve richer interactive effects, refer to Figure 4 and Figure 5 In some possible embodiments of this application, the control module 200 further includes an adjustment component 230, which is connected between the signal processing unit 221 and the second transmission circuit T1. The first communication circuit T3 includes a first sub-circuit T31 and a second sub-circuit T32. The control unit 210 is connected to the signal processing unit 221 through the first sub-circuit T31 and to the adjustment component 230 through the second sub-circuit T32. The adjustment component 230 includes a power adjustment unit 231, which is configured to adjust the power of the second electrical signal output by the signal processing unit 221 in response to the control of the control unit 210, and transmit the adjusted second electrical signal to the piezoelectric component 100 through the second transmission circuit T1.

[0068] In this embodiment, the first sub-circuit T31 can transmit the first control command from the control unit 210 to the signal processing unit 221, and can also transmit the parsing result from the signal processing unit 221 to the control unit 210. Exemplarily, the first sub-circuit T31 can be a serial communication circuit, such as an SPI circuit. The second sub-circuit T32 can be used to transmit the control command from the control unit 210 to the adjustment component 230. Exemplarily, the second sub-circuit T32 can be a serial communication circuit, such as an I2C circuit. The control unit 210 and the adjustment component 230 are connected via an I2C circuit, and the adjustment component 230 and the signal processing unit 221 can be connected via digital audio transmission lines such as Time-Division Multiplexing (TDM) lines or Integrated Circuit Built-in Audio Bus (Inter-ICSound, I2S).

[0069] In this embodiment, the power adjustment unit 231 can be used to adjust the power of the second electrical signal to match the operating power of the piezoelectric component 100, thereby driving the piezoelectric component 100 to vibrate. The power adjustment unit 231 can be a linear power amplifier, a solid-state power amplifier, a traveling wave tube amplifier, etc., and this embodiment does not limit it.

[0070] The human-computer interaction device of this application embodiment includes a signal analysis component 220, which includes a power adjustment unit 231 and a signal processing unit 221. The control unit 210 can control the working state, channel selection, sound source source and / or executed audio identifier of the signal processing unit 221 through the first sub-circuit T31, and control the power adjustment unit 231 through the second sub-circuit T32 to adjust the power of the second electrical signal. This can adjust the vibration / sound generation effect of the piezoelectric component 100 and achieve richer interactive effects.

[0071] In order to adapt to more diverse vocal needs, refer to Figure 5 and Figure 6 In some possible embodiments of this application, the adjustment component 230 is connected to at least two piezoelectric components 100, and the adjustment component 230 further includes an output selection unit 232. The output selection unit 232 responds to a second control command from the control unit 210, divides the second electrical signal into sub-signals, and transmits the sub-signals to the corresponding piezoelectric components 100 respectively. The second control command at least instructs the adjustment component 230 to perform channel selection.

[0072] In this embodiment of the application, the adjustment component 230 is connected to at least two piezoelectric components 100 through the output selection unit 232. The output selection unit 232 can drive different piezoelectric components 100 to vibrate simultaneously or at different times based on the second control command, or it can drive different piezoelectric components 100 to produce the same or different vibrations.

[0073] The second electrical signal can be a time-division signal, which includes a division identifier. The output selection unit 232 divides the second electrical signal into multiple sub-signals according to the division identifier, so as to drive the corresponding piezoelectric components 100 respectively. This can enhance the stereo effect and provide richer sound effects and a better sense of space.

[0074] In this embodiment of the application, when multiple piezoelectric components 100 are provided, each piezoelectric component 100 can be individually connected to the signal processing unit 221, or different piezoelectric components 100 can be connected to the signal processing unit 221 via a bus, and different piezoelectric components 100 can be used as different types or the same type of input devices.

[0075] For example, the signal processing unit 221 is connected to two piezoelectric components 100 respectively. One piezoelectric component 100 is connected through two transmission lines to identify complex vibrations such as voice information; the other piezoelectric component 100 is connected through a single transmission line. The structure is simple and can be used to identify vibration type, vibration source, etc.

[0076] The human-computer interaction device of this application embodiment is provided with an output selection unit 232, which can drive different piezoelectric components 100 to perform time-division vibration and / or generate different vibrations based on the control unit 210, thereby achieving more complex output effects and adapting to a wider range of scenarios.

[0077] To accommodate diverse input requirements, refer to Figure 6 and Figure 7 In some possible embodiments of this application, the control module 200 further includes a second communication circuit T4, which is connected between the piezoelectric component 100 and the control unit 210. The second communication circuit T4 is used to transmit a first electrical signal. The control unit 210 is configured to control the working state of the signal parsing component 220 in response to receiving the first electrical signal.

[0078] In this embodiment, the second communication circuit T4 can be an input / output (I / O) bus. The second communication circuit T4 can transmit the first electrical signal to the control unit 210. That is, the first electrical signal generated by the piezoelectric component 100 in response to external vibration can be directly transmitted to the control unit 210 via the second communication circuit T4. This is suitable for situations where the input information, such as the source and type of vibration, is relatively simple, i.e., the human-machine interaction device operates in vibration sensing mode. The control unit 210 can also switch the human-machine interaction device to sound sensing mode based on the first electrical signal transmitted by the second communication circuit T4. Alternatively, the first electrical signal can also be transmitted to the signal analysis component 220 via the first transmission circuit T2, where it is analyzed and the analysis result is transmitted to the control unit 210. This is suitable for situations where the information, such as voice information, is more complex, i.e., the human-machine interaction device operates in sound sensing mode.

[0079] In this embodiment, the control unit 210 may respond to the first electrical signal transmitted by the second communication circuit T4 and control the signal parsing component 220 to switch to an active state so as to parse the first electrical signal to obtain voice information, etc.; or, the control unit 210 may respond to the first electrical signal transmitted by the second communication circuit T4 and control the signal parsing component 220 to switch to a disabled state to reduce power consumption.

[0080] The human-computer interaction device of this application embodiment is provided with a second communication circuit T4, which enables the control unit 210 to directly receive the first electrical signal and sense external vibrations such as knocking and touching to realize the vibration sensing mode. Based on the signal parsing component 220 receiving and parsing the first electrical signal to realize the sound sensing mode, the vibration sensing mode and the sound sensing mode can be reused to realize the switching of multiple working modes and adapt to diverse scenario requirements.

[0081] To simplify the structure, refer to Figure 7 and Figure 8 In some possible embodiments of this application, the human-computer interaction device further includes a mating part 300, which is used to input a second electrical signal and output a first electrical signal; the second transmission circuit T1, the first transmission circuit T2, and the second communication circuit T4 are all connected to the mating part 300.

[0082] In this embodiment, the mating part 300 may be a component of the piezoelectric assembly 100. For example, the piezoelectric assembly 100 includes a circuit board on which the mating part 300 is provided. The mating part 300 may also be an adapter disposed between the piezoelectric assembly 100 and the control module 200, and the mating part 300 is used for bidirectional signal transmission between the piezoelectric assembly 100 and the control module 200.

[0083] In the human-computer interaction device of this application embodiment, the second transmission circuit T1, the first transmission circuit T2, and the second communication circuit T4 are all connected to the mating part 300 to realize the centralized arrangement of multiple circuits, thereby simplifying the structure and facilitating circuit layout.

[0084] To protect the control unit 210 and the signal processing unit 221, refer to Figure 7 and Figure 8 In some possible embodiments of this application, at least one of the first transmission circuit T2 and the second communication circuit T4 is provided with a voltage regulator unit 400 and / or an operational amplifier unit 500; wherein, the voltage regulator unit 400 is used to limit the strength of the second electrical signal flowing back to the signal processing unit 221 or the control unit 210, and to limit the strength of the first electrical signal sent to the signal processing unit 221 or the control unit 210; the operational amplifier unit 500 is used to adjust the voltage of the second electrical signal flowing back to the signal processing unit 221 or the control unit 210, and to adjust the voltage of the first electrical signal sent to the signal processing unit 221 or the control unit 210.

[0085] In this embodiment, the second transmission circuit T1, the first transmission circuit T2, and the second communication circuit T4 are all connected to the same port of the piezoelectric component 100. It can be understood that the second electrical signal of the second transmission circuit T1 can not only be transmitted to the piezoelectric component 100, but also flow back to the signal processing unit 221 or the control unit 210 through the connected first transmission circuit T2 and second communication circuit T4. By setting the voltage regulation unit 400 and / or the operational amplifier unit 500, the influence of this return signal can be reduced. At the same time, the voltage regulation unit 400 can limit the voltage when the volume of the piezoelectric component 100 is too loud, so as to avoid damage to the circuit due to excessive voltage.

[0086] In this embodiment, the voltage regulator 400 can be a linear regulator, such as a Zener diode or a three-terminal regulator. The voltage regulator 400 can also be a voltage regulator, and the output voltage of the voltage regulator can be adjusted according to actual needs to improve the flexibility of the device.

[0087] In this embodiment, the strength of the electrical signal can refer to its voltage parameters, current parameters, power density, etc. For example, a voltage regulator 400 is provided between the piezoelectric component 100 and the signal processing unit 221 to limit the second electrical signal flowing back to the signal processing unit 221, thereby protecting the signal processing unit 221. It is understood that, in the case where an analog-to-digital converter 222 is provided, the voltage regulator 400 can be located between the analog-to-digital converter 222 and the piezoelectric component 100. Furthermore, in the case where the first transmission circuit T2 includes multiple transmission lines, a voltage regulator 400 needs to be provided for each transmission line.

[0088] In this embodiment, adjusting the voltage of the electrical signal means limiting or increasing the voltage of the corresponding electrical signal to match the interface input voltage of the signal processing unit 221 or the control unit 210. For example, the second communication circuit T4 is equipped with an operational amplifier unit 500, which adjusts the voltage of the first electrical signal to match the interface input voltage of the control unit 210.

[0089] The human-computer interaction device of this application embodiment limits the strength of the electrical signal by setting a voltage regulator unit 400 and / or adjusting the voltage of the electrical signal by setting an operational amplifier unit 500, so as to adapt to the working parameters of the control unit 210 and the signal processing unit 221. This can protect the control unit 210 and the signal processing unit 221 and reduce signal distortion.

[0090] For easier switching of input modes, please refer to... Figure 8 and Figure 9 In some possible embodiments of this application, the control module 200 further includes a controllable switch 240, and at least one of the first transmission circuit T2 and the second communication circuit T4 is provided with an execution terminal of the controllable switch 240. The control terminal of the controllable switch 240 is connected to the control unit 210. In response to the control of the control unit 210, the controllable switch 240 connects or disconnects the corresponding first transmission circuit T2 or second communication circuit T4.

[0091] In this embodiment, the controllable switch 240 can be a transistor, a mechanical switch, an electromagnetic switch, etc. The transistor can be a bipolar transistor, a field-effect transistor, a complementary metal-oxide-semiconductor, a carbon nanotube transistor, etc. This embodiment does not limit the types of transistors.

[0092] In this embodiment, the controllable switch 240 includes a control terminal and an execution terminal. The control terminal can be connected to a control unit 210, etc., while the execution terminal is connected to the controlled circuit. When the control terminal receives a corresponding control electrical signal, the execution terminal connects the controlled circuit so that the corresponding electrical signal can be transmitted through the controlled circuit; or, the execution terminal disconnects the controlled circuit to prevent the controlled circuit from transmitting electrical signals.

[0093] In one possible embodiment of this application, the first transmission circuit T2 and the second communication circuit T4 are respectively provided with the execution end of the controllable switch 240. The control unit 210 controls the first transmission circuit T2 to be connected and the second communication circuit T4 to be disconnected, so that the human-machine interaction device works in the sound perception mode; or, the control unit 210 controls the first transmission circuit T2 to be disconnected and the second communication circuit T4 to be connected, so that the human-machine interaction device works in the vibration perception mode.

[0094] In the human-computer interaction device of this application embodiment, the control unit 210 adjusts the connection or disconnection of the first transmission circuit T2 and the second communication circuit T4 through the controllable switch 240, thereby adjusting the transmission path of the first electrical signal to adapt to different input modes.

[0095] To facilitate the output of the human-computer interaction device, refer to Figure 6 and Figure 7 In some possible embodiments of this application, the control module 200 further includes a second communication circuit T4 connected between the piezoelectric component 100 and the control unit 210 for transmitting a first electrical signal. The control unit 210 is configured to switch the signal parsing component 220 to an output state in response to the parsing result, so that the signal parsing component 220 outputs a second electrical signal; and / or, the control unit 210 is configured to control the first transmission circuit T2 and the second communication circuit T4 to disconnect in response to the parsing result.

[0096] In this embodiment, the control unit 210 can control the operating state of the signal analysis component 220 and the on / off state of the first transmission circuit T2 and the second communication circuit T4 based on the analysis results. For example, the control unit 210 controls the signal analysis component 220 to switch to an output state, that is, the signal processing unit 221 and the adjustment component 230 both enter an active state, and can output a second electrical signal to the piezoelectric component 100;

[0097] In addition, the control unit 210 can also control the first transmission circuit T2 and the second communication circuit T4 to disconnect via the controllable switch 240, so as to avoid the second electrical signal backflow from adversely affecting the control unit 210 and the signal parsing component 220.

[0098] In the human-computer interaction device of this application embodiment, the control unit 210 controls the signal analysis component 220 to output a second electrical signal based on the analysis result, so that the piezoelectric component 100 vibrates to produce sound. The control unit 210 can also control the first transmission circuit T2 and the second communication circuit T4 to disconnect, so as to reduce the influence of the return electrical signal.

[0099] In order to obtain external vibration information in a timely manner, refer to Figure 9 and Figure 10 In some possible embodiments of this application, the control unit 210 is configured to switch the control signal parsing component 220 to a disabled state in response to a third electrical signal; and / or, the control unit 210 is configured to control the first transmission circuit T2 to disconnect and the second communication circuit T4 to connect in response to a third electrical signal; wherein the third electrical signal is generated by the external audio source module 600 or the signal parsing component 220, and the third electrical signal is used to indicate the end of the second electrical signal output.

[0100] In this embodiment, the third electrical signal can be generated by the external audio source module 600 or the signal analysis component 220 to indicate the end of the second electrical signal output. For example, after the external audio source module 600 sends the second electrical signal to the signal analysis component 220, it generates the third electrical signal and sends it to the control unit 210. Alternatively, after the signal processing unit 221 of the signal analysis component 220 sends the second electrical signal to the adjustment component 230, it generates the third electrical signal and sends it to the control unit 210.

[0101] In this embodiment, the control unit 210 can switch the signal parsing component 220 to a disabled state in response to the third electrical signal, and control the first transmission circuit T2 to be disconnected and the second communication circuit T4 to be connected through the controllable switch 240, so that the first electrical signal generated by the piezoelectric component 100 can be directly transmitted to the control unit 210 through the second communication circuit T4, so that the human-machine interaction device works in vibration sensing mode.

[0102] In the human-computer interaction device of this application embodiment, the external audio source module 600 or the signal analysis component 220 can generate a third electrical signal after the output of the second electrical signal ends. The control unit 210 responds to the third electrical signal by controlling the signal analysis component 220 to switch to a disabled state, and / or disconnecting the first transmission circuit T2 and connecting the second communication circuit T4, thereby enabling the human-computer interaction device to work in vibration sensing mode and timely obtain external vibration information.

[0103] To obtain more complex input information, refer to Figure 7 and Figure 8 In some possible embodiments of this application, the control unit 210 is configured to control the signal parsing component 220 to switch to an input state in response to the first electrical signal, so that the signal parsing component 220 receives and parses the first electrical signal; and / or, the control unit 210 is configured to control the first transmission circuit T2 to connect and control the second communication circuit T4 to disconnect in response to the first electrical signal.

[0104] In this embodiment, the control unit 210 can control the signal parsing component 220 to switch to the input state, that is, the signal processing unit 221 switches to the active state, can receive the first electrical signal and parse it, and send the parsing result to the control unit 210.

[0105] In addition, the control unit 210 can also control the first transmission circuit T2 to be connected and the second communication circuit T4 to be disconnected, that is, the first electrical signal generated by the piezoelectric component 100 is transmitted to the signal analysis component 220 through the first transmission circuit T2 without passing through the second communication circuit T4.

[0106] Based on this, the human-computer interaction device operates in the sound perception mode. It should be noted that the control unit 210 can also control the human-computer interaction device to operate in the sound perception mode based on the analysis results of the signal analysis component 220. For example, when the signal analysis component 220 outputs a second electrical signal, the received first electrical signal is compared with the output second electrical signal. If the comparison result indicates the presence of external vibration input, the output of the second electrical signal is stopped, and the device switches to the sound perception mode.

[0107] In the human-computer interaction device of this application embodiment, the control unit 210 controls the signal parsing component 220 to switch to the input state, and controls the first transmission circuit T2 to be connected and the second communication circuit T4 to be disconnected, so that the human-computer interaction device works in the sound perception mode, which can parse sound information to realize more complex human-computer interaction.

[0108] In some possible embodiments of this application, the external vibration is an air wave vibration. Air wave vibration refers to a vibration wave transmitted through a gas medium. Air wave vibration can be used to transmit sound signals, such as the sound information of a user's speech.

[0109] The human-computer interaction device of this application embodiment has the ability to perceive sound by analyzing air wave vibrations, and can switch between the sound perception mode and other working modes.

[0110] In order to broaden the ways to obtain audio sources, refer to Figure 9 and Figure 10 In some possible embodiments of this application, the human-computer interaction device further includes an external audio source module 600, which is connected to the signal parsing component 220 and the control unit 210 respectively. The external audio source module 600 is configured to send a second electrical signal to the signal parsing component 220 in response to a third control command from the control unit 210, so that the signal parsing component 220 outputs the second electrical signal; the third control command at least indicates the parsing result.

[0111] In this embodiment, the external audio source module 600 may include an external processor, which generates a second electrical signal and sends it to the signal analysis component 220. Alternatively, the external audio source module 600 may include an external memory, an external processor, etc. The external memory is used to store audio files, and the external processor can respond to the control unit 210 to retrieve the audio file from the external memory, process it into a second electrical signal, and send it to the signal analysis component 220.

[0112] In this embodiment, the external audio source module 600 can be a vehicle infotainment system, a personal computer (PC), a laptop computer, a mobile phone, an all-in-one computer, a PDA, a tablet computer, or a portable device (such as a mobile phone or a navigation and positioning device), an industrial control computer, or a smart home device (such as a smart speaker or access control device), etc. This embodiment does not impose any limitations on this. When the human-machine interface device is installed in the vehicle body, the external audio source module 600 can be a component of the vehicle-mounted terminal (e.g., a vehicle infotainment system), meaning the human-machine interface device interacts with the vehicle-mounted terminal, so that the vehicle-mounted terminal provides a second electrical signal to the signal analysis component 220.

[0113] In this embodiment, the external audio source module 600 can be connected to the control unit 210 via a CAN bus, such as a CAN transceiver 260. Specifically, the external audio source module 600 can be connected to the CAN transceiver via the CAN bus and then to the control unit 210. The external audio source module 600 can be connected to the signal processing unit 221 via, for example, a TDM line or an I2S bus. It should be noted that when the external audio source module 600 is an electronic terminal such as a vehicle infotainment system with a processor, the signal processing unit 221 can also send the parsing results to the processor of the vehicle infotainment system, which then acts as the control unit 210.

[0114] In the human-computer interaction device of this application embodiment, the control unit 210 can control the external audio source module 600 using the analysis result of the first electrical signal, and send the second electrical signal to the signal analysis component 220 through the external audio source module 600. The external audio source module 600 has the effect of being easy to replace and expand, so that the human-computer interaction device can be adapted to different external audio source modules 600, enriching the application scenarios of the human-computer interaction device.

[0115] To facilitate the signal processing unit 221 in acquiring the sound source, refer to Figure 9 and Figure 10 In some possible embodiments of this application, the control module 200 further includes a built-in storage unit 250, which is connected to a signal processing unit 221. The signal processing unit 221 is configured to retrieve an audio file from the built-in storage unit 250 to output a second electrical signal in response to a first control command from the control unit 210.

[0116] In this embodiment, the built-in storage unit 250 is used to store audio files. The control unit 210 instructs the signal processing unit 221 to switch to the active mode through a first control command. The signal processing unit 221 can respond to the first control command to obtain the corresponding audio file from the storage unit according to the audio identifier. The signal processing unit 221 generates a corresponding second electrical signal according to the audio file and drives the piezoelectric component 100 to vibrate via the power adjustment unit 231.

[0117] The human-computer interaction device of this application embodiment includes a signal parsing component 220 with a built-in storage unit 250. The signal processing unit 221 can obtain audio files from the built-in storage unit 250 and convert them into a second electrical signal output. Since the built-in storage unit 250 is located in the signal parsing component 220, it is more convenient to obtain the audio files and can respond more quickly, thus improving the efficiency of human-computer interaction.

[0118] To facilitate the control of human-computer interaction devices, refer to Figure 10 In some possible embodiments of this application, the human-computer interaction device further includes an input component 700, which is connected to the control unit 210. The input component 700 is configured to generate a fourth electrical signal in response to an operation, and the control unit 210 is configured to control the operating state of the signal parsing component 220 in response to the fourth electrical signal.

[0119] In this embodiment, the input component 700 may include buttons, a touchpad, a microphone, a keyboard, a camera, etc. The input component 700 may also include corresponding control circuitry. When triggered, the input component 700 generates a fourth electrical signal. The control unit 210 can control the signal parsing component 220 to switch its operating state based on the fourth electrical signal, for example, switching the signal parsing component 220 to an active or disabled state. The control unit 210 can also control the controllable switch 240 based on the fourth electrical signal to switch the human-machine interface device to an output mode, a vibration sensing mode, or a sound sensing mode. The output mode is the mode in which the control unit 210 controls the signal parsing component 220 to drive the piezoelectric component 100 to vibrate and produce sound.

[0120] In the human-computer interaction device of this application embodiment, the control unit 210 is connected to the input component 700. The operator can send a fourth electrical signal to the control unit 210 through the input component 700. The control unit 210 responds to the fourth electrical signal to control the working state of the signal parsing component 220, making the operation more flexible, compatible with different human-computer interaction methods, and supporting more diversified interaction methods.

[0121] It should be noted that, unless otherwise specified, all connections between the aforementioned electronic components (such as control unit 210, signal processing unit 221, external audio source module 600, built-in memory, piezoelectric component 100, etc.) are electrical connections. These electrical connections can be wired or wireless. Wired connections, such as those achieved through wire harnesses, flexible circuit boards, or PCBs, offer structural stability and strong anti-interference capabilities. Wireless connections, such as wireless LAN, Bluetooth, or Wi-Fi, enable long-distance communication and have a simple structure.

[0122] Based on this, the present application provides a vehicle, which includes a vehicle body and a human-machine interaction device according to the present application. The vehicle body includes at least one structural member 800, which includes at least one of the following: an outer body panel, an interior panel, and a vehicle component. The vehicle component is connected to the outer body panel or the interior panel. At least one structural member 800 is connected to the human-machine interaction device.

[0123] In this embodiment, the vehicle body may include an on-board terminal, and the human-machine interaction device is electrically connected to the on-board terminal. One or more human-machine interaction devices may be installed on the vehicle body, or the human-machine interaction device may include multiple piezoelectric components 100, which may be installed at different locations on the vehicle body. It should be noted that the structural component 800 is connected to the human-machine interaction device; the entire human-machine interaction device may be located on the structural component 800, or the piezoelectric components 100 in the human-machine interaction device may be located on the structural component 800, so that the piezoelectric components 100 are used for vibration, sound generation, or sensing at corresponding locations.

[0124] In this embodiment, structural component 800 includes at least one of the following: exterior body panels, interior body panels, and vehicle components. The vehicle components are connected to the exterior body panels or interior body panels. Exterior body panels include roof panels, engine compartment hoods, storage box lids, pillars (such as B-pillars), front / rear fenders, doors, bumpers, roof racks, rearview mirror covers, etc.; interior body panels include headliners, floors, dashboards, door panels, center console panels, pillar guards, window sills, etc.; vehicle components include seats, body beams, body pillars, steering wheels, armrest boxes, rearview mirrors, sun visors, etc.

[0125] In this embodiment, the piezoelectric component 100 can drive the structural component 800 to vibrate and produce sound. Therefore, when the piezoelectric component 100 is installed on the structural component 800 such as the outer panel of the vehicle body, it can be installed on the inner side of the structural component 800, which has little impact on the vibration and sound production effect. Furthermore, the structural component 800 provides protection for the piezoelectric component 100, which also helps to simplify the structure.

[0126] The vehicle in this application embodiment includes at least one structural member 800 for installing a human-machine interaction device. The human-machine interaction device can be installed at a suitable position on the vehicle body as needed, making the deployment of the human-machine interaction device more convenient, so that the vehicle can realize a variety of human-machine interaction functions.

[0127] Reference Figure 11 and Figure 12 In some possible embodiments of this application, the human-computer interaction device includes a control module 200 and a piezoelectric component 100. The control module 200 includes a control unit 210 and a signal analysis component 220. The signal analysis component 220 includes a signal processing unit 221, an adjustment component 230, and an analog-to-digital converter 222. Both the adjustment component 230 and the analog-to-digital converter 222 are connected to the signal processing unit 221. The adjustment component 230 and the piezoelectric component 100 are connected via a second transmission circuit T1, the piezoelectric component 100 and the analog-to-digital converter 222 are connected via a first transmission circuit T2, the control unit 210 and the signal processing unit 221 are connected via a first sub-circuit T31, and the control unit 210 and the signal analysis component 220 are connected via a second sub-circuit T32. (Refer to...) Figure 11 In one embodiment, the control unit 210 is not directly connected to the piezoelectric component 100, and the first electrical signal is transmitted only through the first transmission circuit T2; see reference. Figure 12 In another embodiment, the control unit 210 and the piezoelectric component 100 are connected via a second communication circuit T4, and the first electrical signal can be connected by a first transmission circuit T2 and a second communication circuit T4, respectively.

[0128] In addition, an external audio source module 600 can be provided, which is connected to the control unit 210 and the signal processing unit 221 respectively. The signal processing unit 221 can also be connected to the built-in storage unit 250. The adjustment component 230 also includes an output selection unit 232 and a power adjustment unit 231 to facilitate the adjustment of the output effect. The first transmission circuit T2 is equipped with a voltage regulator unit 400, and the second communication circuit T4 is equipped with an operational amplifier unit 500 to protect the control unit 210 and the signal analysis component 220.

[0129] Based on this, the human-computer interaction device has an output mode, a vibration sensing mode, and a sound sensing mode that can be switched between each other. In the output mode, information is output to the outside world through the vibration of the piezoelectric component 100; the vibration sensing mode is used to acquire external operations or environmental changes of the first vibration type, such as touch or tapping; and the sound sensing mode is used to acquire external voice of the second vibration type, such as user voice.

[0130] Furthermore, when the signal processing unit 221 outputs a second electrical signal to the piezoelectric component 100, the first transmission circuit T2 can be disconnected to shield the first electrical signal from the signal processing unit 221. Alternatively, the signal processing unit 221 may still receive the first electrical signal while outputting the second electrical signal, and compare the received first electrical signal with the output second electrical signal. If the comparison result (e.g., the matching degree between the characteristic value of the second electrical signal and the characteristic value of the first electrical signal is lower than a preset threshold) indicates the presence of external vibration input (e.g., detecting that a user is tapping or touching the piezoelectric component 100), then the output of the second electrical signal will stop. That is, the user can interrupt the sound output by tapping, touching, or other means while the human-computer interaction device is outputting, so that the human-computer interaction device switches to a sound perception mode or a vibration perception mode.

[0131] The control unit 210 can determine the operating state of the human-computer interaction device based on the content indicated by the second electrical signal and the first electrical signal or the analysis result. For example, if the control unit 210 determines that the external vibration is caused by the user's touch or tapping based on the first electrical signal, and determines that the user needs voice interaction, then the control unit 210 determines that the human-computer interaction device is operating in the sound perception mode. Alternatively, if the control unit 210 determines that the user has requested a song via voice based on the analysis result, then the control unit 210 determines that the human-computer interaction device is operating in the output mode and plays the corresponding song through the piezoelectric component 100. Furthermore, if the control unit 210 determines that no external feedback is needed based on the content indicated by the second electrical signal, such as the user having ended the interaction, then the control unit 210 determines that the human-computer interaction device is operating in a standby mode or a low-power operating state. The standby mode can be either a vibration perception mode or a sound perception mode.

[0132] Furthermore, different persistent working modes can be adapted to different scenarios. In some embodiments, the sound perception mode can be selected as the persistent working mode during a specific time period (e.g., daytime) or a specific area, while the vibration perception mode can be selected as the persistent working mode during non-specific time periods (e.g., nighttime) or non-specific areas. In other embodiments, the sound perception mode can be selected as the persistent working mode within a preset time threshold range where no external feedback is required, and the vibration perception mode can be selected as the persistent working mode after the preset time threshold range is exceeded when no external feedback is required.

[0133] When the human-computer interaction device needs to switch to the sound perception mode, the control unit 210 controls the signal processing unit 221 and the analog-to-digital conversion unit to switch to the active mode, and controls the controllable switch 240 to connect the first transmission circuit T2 and disconnect the second communication circuit T4, so that the human-computer interaction device works in the sound perception mode. In the sound perception mode, the piezoelectric component 100 can generate a first electrical signal based on the user's voice deformation. The first electrical signal is transmitted to the analog-to-digital conversion unit 222 through the first transmission circuit T2. The analog-to-digital conversion unit 222 converts the first transmission circuit T2 into a digital signal. The signal processing unit 221 analyzes the converted first electrical signal to generate an analysis result, and sends it to the control unit 210 through the first sub-circuit T31.

[0134] When the human-machine interface device needs to switch to vibration sensing mode, the control unit 210 controls the signal processing unit 221 and the analog-to-digital conversion unit to switch to disabled mode, and controls the controllable switch 240 to disconnect the first transmission circuit T2 and connect the second communication circuit T4, so that the human-machine interface device operates in vibration sensing mode. In vibration sensing mode, the piezoelectric component 100 can generate a first electrical signal based on the user's touch, tap, etc., and the first electrical signal is transmitted to the control unit 210 through the second communication circuit T4.

[0135] When the human-machine interface device needs to switch to output mode, the control unit 210 controls the signal processing unit 221 and the adjustment component 230 to switch to active mode, and controls the controllable switch 240 to disconnect the first transmission circuit T2 and the second communication circuit T4, so that the human-machine interface device works in output mode. In output mode, the control unit 210 can instruct the signal processing unit 221 to work through the first control command. The control signal processing unit 221 obtains the audio file from the external audio source module 600 or the built-in storage unit 250 according to the audio identifier, and parses the audio file into a second electrical signal and transmits it to the adjustment component 230. The control unit 210 can instruct the adjustment component 230 to work through the second control command. The output selection unit 232 of the adjustment component 230 divides the second electrical signal into sub-signals and outputs them to different piezoelectric components 100. The power adjustment unit 231 of the adjustment component 230 adjusts the power of the sub-signals to adapt to the output requirements of the piezoelectric components 100, thereby driving one or more piezoelectric components 100 to vibrate.

[0136] In one example, when the human-machine interface device is in a standby mode (such as vibration sensing mode), the user taps the car window twice. The piezoelectric component 100 at the window position responds to the tapping vibration and generates a first electrical signal. The control unit 210 receives the first electrical signal through the second communication circuit T4 and determines that the user has an interaction request. It then wakes up the signal analysis component 220 and controls the signal analysis component 220 to drive the piezoelectric component 100 to emit sound, thus switching the human-machine interface device to output mode. The piezoelectric component 100 can emit voice commands such as "What do you need help with?" After the sound output ends, the control unit 210 switches the human-machine interface device to auditory sensing mode to receive the user's voice commands. Based on this, the signal analysis component 220 receives the first electrical signal and deciphers that the user has issued a voice command to "open the car door". The control unit 210 controls the signal parsing component 220 to drive the piezoelectric component 100 to emit sound, informing the user "Please enter Morse code for identity verification", and switches the human-machine interaction device to vibration sensing mode so as to receive the Morse code entered by the user. The control unit 210 can transmit the user's input tap signal to the vehicle terminal so that the vehicle terminal can determine whether the door needs to be opened.

[0137] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A human-computer interaction device, characterized in that, include: The piezoelectric component is configured to generate a first electrical signal in response to external vibration; The control module includes a control unit and a signal parsing component, wherein the signal parsing component is connected to the piezoelectric component through a first transmission circuit, and the signal parsing component is connected to the control unit through a first communication circuit; The signal parsing component receives and parses the first electrical signal through the first transmission circuit, and transmits the parsing result to the control unit through the first communication circuit. The control unit controls the working state of the signal parsing component based at least on the parsing result.

2. The human-computer interaction device according to claim 1, wherein, The signal analysis component is also connected to the piezoelectric component via a second transmission circuit; The signal parsing component responds to the control of the control module and outputs a second electrical signal to the piezoelectric component through the second transmission circuit; The piezoelectric component is also configured to vibrate in response to the second electrical signal.

3. The human-computer interaction device according to claim 2, wherein, The signal analysis component includes a signal processing unit and an analog-to-digital conversion unit. The signal processing unit is connected to the first communication circuit, and the analog-to-digital conversion unit is connected to the first transmission circuit. The analog-to-digital conversion unit is used to convert the first electrical signal into a digital signal and transmit it to the signal processing unit. The signal processing unit is configured to analyze the converted first electrical signal and transmit the analysis result to the control unit.

4. The human-computer interaction device according to claim 1, wherein, The first transmission circuit includes at least two transmission lines, each of which corresponds to a different polarity, and the first electrical signal includes the electrical signal transmitted through each of the transmission lines.

5. The human-computer interaction device according to claim 2, wherein, The signal analysis component includes a signal processing unit and an analog-to-digital conversion unit. The signal processing unit is configured to output the second electrical signal to the piezoelectric component in response to a first control command from the control module. The first control command indicates at least one of the following: the operating state of the signal processing unit, the sound source source, and the audio identifier.

6. The human-computer interaction device according to claim 3, wherein, The control module further includes an adjustment component connected between the signal processing unit and the second transmission circuit. The first communication circuit includes a first sub-circuit and a second sub-circuit. The control unit is connected to the signal processing unit through the first sub-circuit and to the adjustment component through the second sub-circuit. The adjustment component includes a power adjustment unit configured to adjust the power of the second electrical signal output by the signal processing unit in response to the control of the control unit, and transmit the adjusted second electrical signal to the piezoelectric component through the second transmission circuit.

7. The human-computer interaction device according to claim 6, wherein, The adjustment assembly is connected to at least two of the piezoelectric components, and the adjustment assembly further includes an output selection unit. The output selection unit responds to a second control command from the control unit by dividing the second electrical signal into sub-signals and transmitting the sub-signals to the corresponding piezoelectric components. The second control command at least instructs the adjustment assembly to perform channel selection.

8. The human-computer interaction device according to claim 3, wherein, The control module further includes a second communication circuit connected between the piezoelectric component and the control unit. The second communication circuit is used to transmit the first electrical signal. The control unit is configured to control the operating state of the signal parsing component in response to receiving the first electrical signal.

9. The human-computer interaction device according to claim 8, wherein, It also includes a mating part, which is used to input the second electrical signal and output the first electrical signal; The second transmission circuit, the first transmission circuit, and the second communication circuit are all connected to the mating part.

10. The human-computer interaction device according to claim 8, wherein, At least one of the first transmission circuit and the second communication circuit is provided with a voltage regulator unit and / or an operational amplifier unit; The voltage regulator unit is used to limit the strength of the second electrical signal flowing back to the signal processing unit or the control unit, and to limit the strength of the first electrical signal sent to the signal processing unit or the control unit. The operational amplifier unit is used to adjust the voltage of the second electrical signal flowing back to the signal processing unit or the control unit, and to adjust the voltage of the first electrical signal sent to the signal processing unit or the control unit.

11. The human-computer interaction device according to claim 8, wherein, The control module further includes a controllable switch, and at least one of the first transmission circuit and the second communication circuit is provided with an execution terminal of the controllable switch. The control terminal of the controllable switch is connected to the control unit. The controllable switch responds to the control of the control unit by connecting or disconnecting the corresponding first transmission circuit or second communication circuit.

12. The human-computer interaction device according to claim 2, wherein, The control module further includes a second communication circuit connected between the piezoelectric component and the control unit for transmitting the first electrical signal. The control unit is configured to switch the signal analysis component to an output state in response to the analysis result, so that the signal analysis component outputs the second electrical signal. And / or, The control unit is configured to disconnect the first transmission circuit and the second communication circuit in response to the parsing result.

13. The human-computer interaction device according to claim 8, wherein, The control unit is configured to, in response to a third electrical signal, control the signal parsing component to switch to a disabled state; and / or, The control unit is configured to, in response to the third electrical signal, control the first transmission circuit to disconnect and control the second communication circuit to connect. The third electrical signal is generated by the external audio source module or the signal analysis component, and the third electrical signal is used to indicate the end of the output of the second electrical signal.

14. The human-computer interaction device according to claim 8, wherein, The control unit is configured to control the signal parsing component to switch to an input state in response to the first electrical signal, so that the signal parsing component can receive and parse the first electrical signal; And / or, The control unit is configured to, in response to the first electrical signal, control the first transmission circuit to connect and control the second communication circuit to disconnect.

15. The human-computer interaction device according to claim 1, wherein, The external vibration is an air wave vibration.

16. The human-computer interaction device according to claim 2, wherein, It also includes an external audio source module, which is connected to the signal analysis component and the control unit respectively. The external audio source module is configured to send the second electrical signal to the signal analysis component in response to a third control command from the control unit, so that the signal analysis component outputs the second electrical signal; the third control command at least indicates the analysis result.

17. The human-computer interaction device according to claim 3, wherein, The control module also includes a built-in storage unit connected to the signal processing unit, which is configured to retrieve an audio file from the built-in storage unit in response to a first control command from the control unit to output the second electrical signal.

18. The human-computer interaction device according to claim 1, wherein, It also includes an input component connected to the control unit, the input component being configured to generate a fourth electrical signal in response to an operation, and the control unit being configured to control the operating state of the signal parsing component in response to the fourth electrical signal.

19. A vehicle, characterized in that, include: A vehicle body, including at least one structural member, the structural member including at least one of an outer body panel, an interior panel, and a vehicle component, the vehicle component being connected to the outer body panel or the interior panel; The human-computer interaction device according to any one of claims 1 to 18, wherein at least one of the structural components is connected to the human-computer interaction device.

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