Pressure sensing device and intelligent musical instrument

Abstract

The utility model provides a pressure sensing device and an intelligent musical instrument. The pressure sensing device comprises a mounting base, a first trigger assembly and a pressure detection circuit. The mounting seat comprises a fixing part and a mounting part; the fixing part is fixedly connected with the main body; an included angle is formed between the mounting part and the main body. The first trigger assembly comprises a plurality of trigger parts which are arranged on the side face of the installation part. The pressure detection circuit is used for detecting the pressure borne by each trigger part and outputting a corresponding detection signal; the audio device is used for outputting a corresponding first preset audio based on the received detection signal. The first included angle is formed between the mounting part and the main body, so that the plurality of triggering parts arranged on the side surface of the mounting part are easily identified by a user and are pressed and triggered, and the use habits of most people are better met. The pressure detection circuit detects the pressure applied to each trigger part and outputs a corresponding detection signal, so that the audio device outputs a corresponding first preset audio.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of musical instruments, in particular to a pressure sensing device and a smart musical instrument. BACKGROUND

[0002] Traditional stringed instruments usually use strings as a sound production method, such as plucking a single string to produce a single tone. In a smart musical instrument, a potentiometer is also used to simulate the feel and tone of a string in a smart guitar. However, the playing modes of the above two methods are relatively single, and cannot provide more rich playing methods. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems in the prior art, the present application provides a pressure sensing device and a smart musical instrument, which is beneficial to enrich the playing mode of the smart musical instrument.

[0004] The present application provides a pressure sensing device applied to a smart musical instrument, wherein the smart musical instrument comprises a main body and an audio device, and the pressure sensing device comprises:

[0005] A mounting seat, wherein the mounting seat comprises a fixed part and a mounting part; the fixed part is used for fixedly connecting with the main body; and the mounting part is arranged at an angle between the main body and the mounting part;

[0006] A first trigger assembly, wherein the first trigger assembly comprises a plurality of trigger components, and the plurality of trigger components are arranged on the side surface of the mounting part;

[0007] A pressure detection circuit, wherein the pressure detection circuit is used for detecting the pressure received by each trigger component and outputting a corresponding detection signal; and the audio device is used for outputting a corresponding first preset audio based on the received detection signal.

[0008] In an embodiment, the mounting part comprises at least a first side surface and a second side surface, and the first side surface and the second side surface are arranged oppositely;

[0009] The plurality of trigger components are arranged on the first side surface and / or the second side surface, and the first side surface has a first included angle with the main body, and the second side surface has a second included angle with the main body.

[0010] In an embodiment, the pressure detection circuit comprises a plurality of pressure sensors, and the number of the pressure sensors is consistent with the number of the trigger components; and the plurality of pressure sensors are arranged below the trigger components one by one corresponding to the positions of the plurality of trigger components.

[0011] The pressure sensor is used for outputting a corresponding detection signal based on the received pressure.

[0012] In an embodiment, the mounting portion further comprises a third side surface connected to the first side surface and the second side surface respectively;

[0013] The third side surface is provided with the trigger component.

[0014] In an embodiment, the first trigger assembly comprises a first trigger component, a second trigger component, a third trigger component, a fourth trigger component and a fifth trigger component;

[0015] The first trigger component and the second trigger component are arranged on the first side surface, and the third trigger component, the fourth trigger component and the fifth trigger component are arranged on the second side surface;

[0016] The pressure detection circuit is configured to detect the pressure on the first trigger component, the pressure on the second trigger component, the pressure on the third trigger component, the pressure on the fourth trigger component and the pressure on the fifth trigger component, and output a first detection signal, a second detection signal, a third detection signal, a fourth detection signal and a fifth detection signal respectively;

[0017] The audio device is configured to output the first preset audio corresponding to any one or more of the first detection signal, the second detection signal, the third detection signal, the fourth detection signal and the fifth detection signal.

[0018] In an embodiment, there is a preset interval between adjacent trigger components.

[0019] In an embodiment, the smart musical instrument further comprises a second trigger assembly arranged on the surface of the main body;

[0020] The second trigger assembly is configured to output a first trigger signal when triggered;

[0021] The audio device is configured to output / switch the first preset audio based on the received first trigger signal and detection signal.

[0022] In an embodiment, the second trigger assembly comprises a plurality of trigger modules; the plurality of trigger modules are arranged on the surface of the main body; each trigger module is configured to output a corresponding first trigger signal when triggered;

[0023] The audio device is configured to output the first preset audio corresponding to the received first trigger signal and detection signal.

[0024] In an embodiment, the indication device comprises a plurality of indicator lights, and the number of the indicator lights is consistent with the number of the pressure sensors.

[0025] The plurality of indicator lights are electrically connected one-to-one with the plurality of pressure sensors; the detection signal is also used to control the indicator light to emit light.

[0026] The application also provides an intelligent musical instrument, which comprises a main body, an audio device and the pressure sensing device.

[0027] The pressure sensing device is used to detect the pressure received by the preset position and output a corresponding detection signal; the audio device is used to output a corresponding preset audio based on the received detection signal.

[0028] The application sets a first included angle between the mounting portion and the main body, so that the plurality of trigger components arranged on the side surface of the mounting portion are easy to be recognized and pressed by the user, and are more in line with the usage habits of most people. The pressure detection circuit detects the pressure received by each trigger component and outputs a corresponding detection signal, so that the audio device outputs a corresponding first preset audio. In this way, the user sets the first preset audio output by the audio device when each trigger component is triggered. Then, by pressing and triggering the plurality of trigger components, a plurality of types of audio output can be realized, so that the playing mode of the intelligent musical instrument is more diversified. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a structural diagram of an intelligent musical instrument according to an embodiment of the application.

[0030] Figure 2 FIG. 2 is a structural diagram of a pressure sensing device according to an embodiment of the application.

[0031] Figure 3 FIG. 3 is an exploded view of the pressure sensing device according to an embodiment of the application.

[0032] Figure 4 FIG. 4 is a structural diagram of a pressure detection circuit according to an embodiment of the application.

[0033] Figure 5 FIG. 5 is a circuit structural diagram of an indicator light according to an embodiment of the application.

[0034] Main element symbol explanation: pressure sensing device-100; mounting seat-110; first trigger assembly-120; pressure detection circuit-130; first side-111; second side-112; third side-113; pressure sensor-131; first trigger component-121; second trigger component-122; third trigger component-123; fourth trigger component-124; fifth trigger component-125; second trigger assembly-500; first trigger module-410; indicator light-140; smart musical instrument-10; main body-200; audio device-400; circuit board-160; shell-150; fixed part-114; mounting part-115; third trigger assembly-600; trigger module-510.

[0035] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0036] The following description will reference the drawings in order to more fully understand the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application can be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art. Like reference numerals refer to like elements throughout.

[0037] Referring to Figures 1 to 4 The present application proposes a pressure sensing device 100 applied to a smart musical instrument 10, wherein the smart musical instrument 10 comprises a main body 200 and an audio device 400. The pressure sensing device 100 comprises a mounting seat 110, a first trigger assembly 120 and a pressure detection circuit 130. The mounting seat 110 comprises a fixed part 114 and a mounting part 115; the fixed part 114 is used for fixed connection with the main body 200; the mounting part 115 is arranged at an angle between the main body 200. The first trigger assembly 120 comprises a plurality of trigger components, and the plurality of trigger components are arranged on the side of the mounting part 115. The pressure detection circuit 130 is used for detecting the pressure received by each trigger component and outputting a corresponding detection signal; the audio device 400 is used for outputting a corresponding first preset audio based on the received detection signal.

[0038] In this embodiment, the smart musical instrument 10 can be a guitar, a violin, a bass, a piano, etc. Taking the smart musical instrument 10 as a guitar as an example, the mounting seat 110 can be arranged at the fingerboard or the panel of the guitar. The pressure sensing device 100 is fixedly connected with the guitar body 200 through the fixing part 114 of the mounting seat 110. The first included angle is formed between the mounting part 115 and the guitar body 200, so that the plurality of trigger components arranged on the side surface of the mounting part 115 are distinguished from the main body 200 of the smart musical instrument 10, and thus can be more easily perceived. The user can determine the position of the trigger component by hand perception without seeing the position of the trigger component and then pressing. For example, the mounting seat 110 can be arranged at the panel of the guitar, and the mounting part 115 can be arranged at 90° with the guitar panel, so as to be more consistent with the habits of most people using the guitar, and thus the user experience is better. The right-hand fingers are used to press one or more trigger components on the side surface of the mounting part 115 up and down, the pressure detection device detects the pressure received by each trigger component, and outputs a corresponding detection signal to the audio device 400, and the audio device 400 outputs a corresponding first preset audio according to the received detection signal. The included angle between the mounting part 115 and the main body 200 can also be set to 80°, 120°, etc. according to actual needs, which is not limited herein.

[0039] In an embodiment, the pressure sensing device 100 further comprises a shell 150. The shell 150 covers the mounting seat 110 to fix the first trigger assembly 120 and the mounting part 115, and protects the internal structure and electronic devices.

[0040] In an embodiment, the audio device 400 can comprise a controller and a loudspeaker. The controller can output a corresponding first preset audio signal according to the received detection signal to control the loudspeaker to output the first preset audio. When different trigger components are pressed, or when a plurality of trigger components are pressed at the same time, the first preset audio output by the audio device 400 is different. The first preset audio signal can be a single-string audio, a chord audio, a drum sound, etc. The user can set the first preset audio output by the audio device 400 when each trigger component is pressed or when a plurality of trigger components are pressed at the same time. The pressure detected by the pressure detection device is positively correlated with the volume and duration of the first preset audio. The controller can be implemented by using a chip with a control function such as a microprocessor or a single-chip microcomputer. It can be understood that the controller outputting a corresponding first preset audio based on the received detection signal can be implemented by using an existing software program, which does not belong to the improvement of the method.

[0041] The present application sets a first included angle between the mounting portion 115 and the main body 200, so that the multiple trigger components arranged on the side surface of the mounting portion 115 are easily recognized and pressed by the user, and are more in line with the usage habits of most people. The pressure detection circuit 130 detects the pressure received by each trigger component and outputs a corresponding detection signal, so that the audio device 400 outputs a corresponding first preset audio. In this way, the user sets the first preset audio output by the audio device 400 when each trigger component is triggered. Then, by pressing and triggering multiple trigger components, various types of audio output can be achieved, making the playing mode of the smart musical instrument 10 more diversified.

[0042] In an embodiment, the mounting portion 115 includes at least a first side surface 111 and a second side surface 112 arranged opposite to each other. Multiple trigger components are arranged on the first side surface 111 and / or the second side surface 112, and the first side surface 111 has a first included angle with the main body 200, and the second side surface 112 has a second included angle with the main body 200.

[0043] In the present embodiment, the surface of the mounting portion 115 can be curved or flat according to actual application. Multiple trigger components can be arranged on the first side surface 111 or the second side surface 112, or arranged on the first side surface 111 and the second side surface 112 respectively. In this way, the trigger components can be more easily perceived as distinct from the main body 200 of the smart musical instrument 10. The user can determine the position of the trigger components by hand perception, without needing to see the position of the trigger components before pressing. The user does not need to be distracted to find the position of the trigger components, and can enjoy music in an immersive way. The first included angle and the second included angle can be the same or different.

[0044] In an embodiment, multiple trigger components can be arranged with a spacing therebetween to facilitate differentiation and prevent accidental triggering. Further, multiple trigger components can also be arranged in different shapes or have different ridges to facilitate differentiation.

[0045] In addition, multiple trigger components arranged on the first side surface 111 and / or the second side surface 112 are more in line with the usage habits of most musical instruments. For example, a guitar is usually used by being placed horizontally and tilted. At this time, the user can play corresponding first preset audio by up and down strumming multiple trigger components on the main plate of the guitar.

[0046] In an embodiment, the mounting portion 115 further includes a third side surface 113 connected to the first side surface 111 and the second side surface 112 respectively. The third side surface 113 is provided with the trigger components.

[0047] In the embodiment, the third side surface 113 can be provided as a curved surface or a flat surface, and the third side surface 113 is generally parallel to the main plate. The trigger components are arranged on the third side surface 113, so that the number of trigger components can be increased, and the types of the first preset audio that can be triggered and output are increased, and the playing mode is further enriched. When the trigger components on the third side surface 113 are pressed, the audio device 400 can be configured to output drum sounds. The user can press the trigger components on the third side surface 113 by a patting action, so that the audio device 400 outputs drum sounds of a corresponding melody, and the playing mode of the intelligent musical instrument 10 is further enriched.

[0048] In an embodiment, the pressure detection circuit 130 includes a plurality of pressure sensors 131, the number of the pressure sensors 131 is consistent with the number of the trigger components; the plurality of pressure sensors 131 are arranged below the trigger components one by one corresponding to the positions of the plurality of trigger components. The pressure sensor 131 is used to output a corresponding detection signal based on the size of the received pressure.

[0049] In the embodiment, the sensitivity of the pressure sensor 131 can be set according to actual needs, so that the user can trigger the audio device 400 to output the first preset audio when lightly pressing. The trigger component can be made of soft material such as silica gel, so that the pressure sensor 131 can sense the light pressing action of the user and is not easy to be triggered by mistake.

[0050] In an embodiment, the pressure sensing device 100 further includes a circuit board 160. The plurality of pressure sensors 131 are respectively electrically connected to the audio device 400 through the wiring layer of the circuit board 160.

[0051] In an embodiment, the first trigger assembly 120 includes a first trigger component 121, a second trigger component 122, a third trigger component 123, a fourth trigger component 124, and a fifth trigger component 125. The first trigger component 121 and the second trigger component 122 are arranged on the first side surface 111, and the third trigger component 123, the fourth trigger component 124, and the fifth trigger component 125 are arranged on the second side surface 112. The pressure detection circuit 130 is used to detect the size of the pressure received by the first trigger component 121, the size of the pressure received by the second trigger component 122, the size of the pressure received by the third trigger component 123, the size of the pressure received by the fourth trigger component 124, and the size of the pressure received by the fifth trigger component 125, and respectively outputs a first detection signal, a second detection signal, a third detection signal, a fourth detection signal, and a fifth detection signal. The audio device 400 is used to output a corresponding first preset audio based on any one or more of the first detection signal, the second detection signal, the third detection signal, the fourth detection signal, and the fifth detection signal. For example, Figure 4As shown, A_ADC_1, A_ADC_2, B_ADC_1, B_ADC_2 and B_ADC_3 are five output terminals of the pressure detection circuit 130, which are respectively used for outputting the first detection signal, the second detection signal, the third detection signal, the fourth detection signal and the fifth detection signal.

[0052] In the embodiment, the first trigger component 121, the second trigger component 122, the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 can be set to be different. For example, the lengths of the first trigger component 121 and the second trigger component 122 can be set to be different. The edges of the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 can be set to be different shapes according to the edges of the mounting portion 115.

[0053] The first trigger component 121, the second trigger component 122, the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 can be set to output different single-string audio or different chord audio when pressed. The first trigger component 121, the second trigger component 122, the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 can also be set to output different single-string audio or different chord audio when pressed in combination. For example, the first trigger component 121 and the second trigger component 122 are pressed at the same time, and the first chord audio is outputted; the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 are pressed at the same time, and the second chord audio is outputted. In addition, the first trigger component 121, the second trigger component 122, the third trigger component 123, the fourth trigger component 124 and the fifth trigger component 125 can be arbitrarily combined to output different types of audio signals, which are not limited herein.

[0054] In an embodiment, the smart musical instrument 10 further comprises a second trigger assembly 500 arranged on the surface of the main body 200. The second trigger assembly 500 is used to output a first trigger signal when triggered. The audio device 400 is used to output / switch the first preset audio based on the received first trigger signal and detection signal.

[0055] In the embodiment, when the first trigger component 120 and the second trigger component 500 are triggered at the same time, the audio device 400 outputs the first preset audio. When the first trigger component 120 is triggered multiple times, the audio device 400 can switch the first preset audio in turn according to the received multiple first trigger signals. For example, when the first trigger component 120 and the second trigger component 500 are triggered for the first time, the audio device 400 outputs the first preset chord; the second trigger component 500 is kept in the triggered state, and the second trigger component 500 is triggered again, and the audio device 400 outputs the second preset chord.

[0056] In an embodiment, the second trigger component 500 includes a plurality of trigger modules 510; the plurality of trigger modules 510 are arranged on the surface of the main body 200; each of the trigger modules 510 is configured to output a corresponding first trigger signal when triggered. The audio device 400 is configured to output the corresponding first preset audio based on the received first trigger signal and the detection signal.

[0057] In the embodiment, the plurality of trigger modules 510 can be configured as a plurality of scale functions or a plurality of pitch functions. For example, the second trigger component 500 includes seven trigger modules 510, and the seven trigger modules 510 are respectively configured as seven scales. When the trigger module 510 is triggered, the audio device 400 outputs the audio of the corresponding scale. The trigger module 510 can be configured as the same pressure-sensitive trigger as the trigger component, that is, the pressing action of the user is detected by the pressure sensor 131 and the corresponding first trigger signal is output, or the trigger module 510 can be configured as a human body contact conduction trigger, that is, the surface of the trigger module 510 forms a loop when the human body contacts and outputs the first trigger signal.

[0058] The user can achieve more types of first preset audio output by triggering the components and the trigger modules 510 at the same time. For example, the user triggers the first trigger module and the first trigger component 121 to output the first chord audio of A pitch; the user triggers the second trigger module and the second trigger component 122 to output the second chord audio of B pitch; the user triggers the third trigger module, the third trigger component 123 and the fourth trigger component 124 to output the third chord audio of C pitch; and so on. In addition, the user can also set the functions of the plurality of first trigger modules 410 by himself, and achieve multiple audio outputs by triggering the plurality of first trigger modules 410 and the plurality of trigger components, which is not limited herein.

[0059] Referring to Figure 5 In an embodiment, the indication device includes a plurality of indicator lights 140, and the number of the indicator lights 140 is consistent with the number of the pressure sensors 131. The plurality of indicator lights 140 are electrically connected to the plurality of pressure sensors 131 one by one; and the detection signal is also used to control the indicator lights 140 to emit light.

[0060] In this embodiment, the plurality of indicator lights 140 can be implemented by LED lights. When the pressure sensor 131 detects that the trigger component is subjected to pressure, a detection signal is output. The detection signal controls the corresponding LED light to be turned on, prompting the user that the trigger component is being pressed to trigger.

[0061] With reference to Figure 1 The application also provides an intelligent musical instrument 10, which comprises a main body 200, an audio device 400, and the pressure sensing device 100 described above. The pressure sensing device 100 is configured to detect the pressure at a preset position and output a corresponding detection signal. The audio device 400 is configured to output a corresponding preset audio based on the received detection signal.

[0062] The detailed structure of the pressure sensing device 100 can refer to the above embodiments, which will not be described here again. It can be understood that, since the pressure sensing device 100 described above is used in the intelligent musical instrument 10 of the application, the embodiments of the intelligent musical instrument 10 of the application include all the technical solutions of all the embodiments of the pressure sensing device 100 described above, and the technical effects achieved are also completely the same, which will not be described here again.

[0063] In an embodiment, the intelligent musical instrument 10 further comprises a third trigger assembly 600 arranged on the surface of the main body 200. The third trigger assembly 600 comprises a plurality of trigger elements, each of which is configured to output a corresponding second trigger signal when triggered. The audio device 400 is configured to output a second preset audio signal based on the second trigger signal. The second preset audio signal comprises a single-string audio signal and a sweep-string audio signal.

[0064] In this embodiment, the trigger element can be configured as a capacitive sensing trigger. When a human body approaches the trigger element, the capacitance below the trigger element changes in level and outputs an electrical signal to the audio device 400 to control the audio device 400 to output a corresponding second preset audio signal.

[0065] For example, the number of trigger elements is six. The six trigger elements can be configured as six tones. When the six trigger elements are triggered individually, the audio device 400 can emit six tone audios respectively; when the six trigger elements are triggered simultaneously, the audio device 400 can emit a sweep-string audio. For example, the intelligent musical instrument 10 is a guitar, and the six trigger elements can be arranged at the fingerboard or the panel. The user triggers a single trigger element to make the audio device 400 emit a corresponding tone audio; when the user sweeps the six trigger elements simultaneously, the audio device 400 emits a corresponding sweep tone.

[0066] In the foregoing, specific embodiments of the application have been described with reference to the accompanying drawings. It will, however, be evident that various modifications and changes can be made thereto without departing from the broader spirit and scope of the application as set forth in the appended claims. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A pressure sensing device applied to a smart musical instrument, the smart musical instrument comprising a main body and an audio device, characterized in that, The pressure sensing device comprises: A mounting seat comprising a fixed part and a mounting part; the fixed part is used for fixed connection with the main body; the mounting part is arranged at an angle between the main body; A first trigger assembly comprising a plurality of trigger components, the plurality of trigger components are arranged on the side surface of the mounting part; A pressure detection circuit for detecting the pressure received by each trigger component and outputting a corresponding detection signal; the audio device is used for outputting a corresponding first preset audio based on the received detection signal.

2. The pressure sensing device of claim 1, wherein, The mounting part comprises at least a first side surface and a second side surface, the first side surface and the second side surface are arranged oppositely; A plurality of trigger components are arranged on the first side surface and / or the second side surface, the first side surface has a first included angle with the main body, and the second side surface has a second included angle with the main body.

3. The pressure sensing device of claim 1, wherein, The pressure detection circuit comprises a plurality of pressure sensors, the number of pressure sensors is consistent with the number of trigger components; a plurality of pressure sensors are arranged below the trigger components corresponding to the positions of the plurality of trigger components; The pressure sensor is used for outputting a corresponding detection signal based on the pressure received.

4. The pressure sensing device of claim 2, wherein, The mounting part further comprises a third side surface, the third side surface is connected with the first side surface and the second side surface respectively; The third side surface is provided with the trigger component.

5. The pressure sensing device of claim 2, wherein, The first trigger assembly comprises a first trigger component, a second trigger component, a third trigger component, a fourth trigger component and a fifth trigger component; The first trigger component and the second trigger component are arranged on the first side surface, and the third trigger component, the fourth trigger component and the fifth trigger component are arranged on the second side surface; The pressure detection circuit is used for detecting the pressure received by the first trigger component, the pressure received by the second trigger component, the pressure received by the third trigger component, the pressure received by the fourth trigger component and the pressure received by the fifth trigger component, and outputting first detection signal, second detection signal, third detection signal, fourth detection signal and fifth detection signal respectively; The audio device is used for outputting a corresponding first preset audio based on any one or more of the first detection signal, the second detection signal, the third detection signal, the fourth detection signal and the fifth detection signal.

6. The pressure sensing device of any one of claims 1 to 5, wherein, The adjacent trigger components have a preset interval.

7. The pressure sensing device of claim 5, wherein, The intelligent musical instrument further comprises a second trigger assembly, the second trigger assembly is arranged on the surface of the main body; The second trigger assembly is used for outputting a first trigger signal when triggered; The audio device is used for outputting / switching the first preset audio based on the received first trigger signal and detection signal.

8. The pressure sensing device of claim 7, wherein, The second trigger assembly comprises a plurality of trigger modules; a plurality of trigger modules are arranged on the surface of the main body; each trigger module is used for outputting a corresponding first trigger signal when triggered; The audio device is used for outputting a corresponding first preset audio based on the received first trigger signal and detection signal.

9. The pressure sensing device of claim 3, wherein, The pressure sensing device further comprises a plurality of indicator lights, the number of the indicator lights being consistent with the number of the pressure sensors; The plurality of the indicator lights are electrically connected with the plurality of the pressure sensors one by one; the detection signal is further used for controlling the indicator lights to emit light.

10. A smart musical instrument, characterized by, The intelligent musical instrument comprises a main body, an audio device and the pressure sensing device according to any one of claims 1 to 9. The pressure sensing device is used for detecting the pressure received by a preset position and outputting a corresponding detection signal; the audio device is used for outputting a corresponding preset audio based on the received detection signal.

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