Bone conduction cervical vertebra massage U-shaped pillow based on audio vibration analysis

Abstract

The invention discloses a bone conduction cervical vertebra massage U-shaped pillow based on audio vibration analysis. The bone conduction cervical vertebra massage U-shaped pillow comprises a U-shaped pillow body, and bone conduction loudspeakers are symmetrically arranged on the two sides of the U-shaped pillow body; the antibacterial memory foam base body is arranged on the inner side of the U-shaped pillow body and makes contact with the skin of a user; a driving signal of the electromagnetic linear vibration assembly directly comes from an audio low-frequency electric signal; the integrated processor comprises a Bluetooth audio processing system and has the functions of real-time frequency division and vibration signal extraction; and the power supply system provides electric energy for the U-shaped pillow. By means of the processor, low-frequency components (20-150 Hz) in music signals are directly analyzed to drive the vibrator, vibration and music rhythm synchronization is achieved, and by means of the bone conduction loudspeaker, composite biomechanical stimulation is formed by a bone conduction sound field (50-4000 Hz) and low-frequency vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of smart wearable and health devices, and particularly to a bone conduction cervical massage U-shaped pillow based on audio vibration analysis. Background Art

[0002] The U-shaped pillow is designed according to ergonomic principles for rest during car rides and flights. Wearing it around the neck during rest helps relieve pressure and aids sleep. The U-shaped pillow is especially suitable for long-distance car rides or flights, allowing users to adjust their heads by 15 - 20 degrees, avoiding compression of the jugular vein and reducing fatigue.

[0003] When in use, the U-shaped pillow is worn around the neck and leaned against the back of the seat, or used in bed, and the neck will not ache. During daily office work, when the head and neck are kept fixed for a long time, it is easy to cause spinal strain. Using the U-shaped pillow can effectively prevent spinal strain, and after turning on the massage function, it can effectively relieve neck fatigue.

[0004] Existing cervical massage U-shaped pillows generally use eccentric rotor motors with a fixed vibration frequency (100 ± 10Hz), resulting in inability to synchronize with music rhythms. At the same time, the vibration unit and the audio system are designed separately, resulting in out-of-sync sound fields and somatic vibrations.

[0005] Pain points of market products: The mechanical noise of traditional motor vibrators > 40dB, affecting the user experience; the battery life of lithium batteries < 2 hours (measured data); the vibration energy transfer efficiency is low (< 60%). Therefore, there is an urgent need to design a bone conduction cervical massage U-shaped pillow based on audio vibration analysis to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a bone conduction cervical massage U-shaped pillow based on audio vibration analysis to solve the above deficiencies in the prior art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A bone conduction cervical massage U-shaped pillow based on audio vibration analysis, including a U-shaped pillow body, and symmetrically arranged bone conduction speakers are provided on both sides of the U-shaped pillow body;

[0009] An antibacterial memory foam matrix, which is arranged inside the U-shaped pillow body and contacts the user's skin;

[0010] An electromagnetic linear vibration component, whose driving signal directly comes from the audio low-frequency band electrical signal;

[0011] An integrated processor, including a Bluetooth audio processing system, with real-time frequency division and vibration signal extraction functions;

[0012] A power supply system, which provides electrical energy for the U-shaped pillow.

[0013] In a preferred embodiment of the present invention, the installation axes of the two bone conduction speakers form an angle of 15-25° with the horizontal plane.

[0014] In a preferred embodiment of the present invention, the electromagnetic linear vibration assembly includes a voice coil motor, and the mass of the oscillator is ≤5g;

[0015] The vibration conduction rod is made of magnesium alloy.

[0016] In a preferred embodiment of the present invention, a contact body is provided at one end of the vibration conduction rod, and the end contact surface of the contact body is a bionic curved surface with a curvature radius of R 8-R12 mm.

[0017] In a preferred embodiment of the present invention, the Bluetooth audio processing system includes a digital filter bank, and the crossover point is set to be adjustable in two gears of 80Hz / 150Hz;

[0018] A dynamic gain compensation circuit, and the conversion ratio of the vibration intensity to the low-frequency amplitude of the audio is adjustable from 1:0.8 to 1:1.2.

[0019] In a preferred embodiment of the present invention, the Bluetooth audio processing system includes a Bluetooth 5.3 audio module: supporting AAC / SBC decoding, and the transmission delay <40ms.

[0020] In a preferred embodiment of the present invention, the power supply system is a 3.7V lithium polymer battery: with a capacity of 2000mAh, supporting QC3.0 fast charging, and can be charged to 50% in 30 minutes.

[0021] In the above technical solution, a bone conduction cervical massage U-shaped pillow based on audio vibration analysis provided by the present invention has the following beneficial effects:

[0022] Through the processor, the low-frequency components (20-150Hz) in the music signal are directly analyzed to drive the oscillator, so that the vibration is synchronized with the music rhythm. Through the bone conduction speaker, a bone conduction sound field (50-4000Hz) and low-frequency vibration form a composite biomechanical stimulus. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of an angle provided for an embodiment of a bone conduction cervical massage U-shaped pillow based on audio vibration analysis of the present invention.

[0025] Figure 2 This is a top - view structural schematic diagram provided for an embodiment of a bone - conduction cervical massage U - shaped pillow based on audio vibration analysis according to the present invention.

[0026] Figure 3 This is a signal - processing flowchart provided for an embodiment of a bone - conduction cervical massage U - shaped pillow based on audio vibration analysis according to the present invention.

[0027] 1. Antibacterial memory foam matrix; 2. U - shaped pillow body; 3. Bone - conduction speaker; 4. Electromagnetic linear vibration assembly; 41. Voice - coil motor; 42. Vibration conduction rod; 43. Contact body; 5. Processor. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] As Figures 1 - 3 shown, a bone - conduction cervical massage U - shaped pillow based on audio vibration analysis provided by an embodiment of the present invention includes a U - shaped pillow body 2, and symmetrically arranged bone - conduction speakers 3 are provided on both sides of the U - shaped pillow body 2; an antibacterial memory foam matrix 1, which is arranged inside the U - shaped pillow body 2 and contacts the user's skin; an electromagnetic linear vibration assembly 4, whose driving signal directly comes from the audio low - frequency band electrical signal; an integrated processor 5, including a Bluetooth audio processing system, with the function of real - time frequency division and vibration signal extraction; and a power supply system, which provides electrical energy for the U - shaped pillow.

[0030] In this embodiment, it includes a U - shaped pillow body 2;

[0031] In this embodiment, symmetrically arranged bone - conduction speakers 3 are provided on both sides of the U - shaped pillow body 2;

[0032] Specifically, the installation axes of the two bone - conduction speakers 3 form an angle of 15 - 25° with the horizontal plane.

[0033] In this embodiment, an antibacterial memory foam matrix 1 is arranged inside the U - shaped pillow body 2 and contacts the user's skin;

[0034] In this embodiment, for the electromagnetic linear vibration assembly 4, its driving signal directly comes from the audio low - frequency band electrical signal;

[0035] Specifically, the electromagnetic linear vibration assembly 4 includes a voice - coil motor 41, and the mass of the vibrator ≤5 g;

[0036] Specifically, the vibration conduction rod 42 is made of magnesium - aluminum alloy.

[0037] Specifically, one end of the vibration conduction rod 42 is provided with a contact body 43, and the end contact surface of the contact body 43 is a bionic curved surface with a curvature radius of R 8 - R 12 mm.

[0038] In this embodiment, the integrated processor 5 includes a Bluetooth audio processing system, which has the functions of real-time frequency division and vibration signal extraction;

[0039] Specifically, the Bluetooth audio processing system includes a digital filter bank, and the frequency division points are set to be adjustable in two gears of 80 Hz / 150 Hz;

[0040] Specifically, for the dynamic gain compensation circuit, the conversion ratio of vibration intensity to audio low-frequency amplitude is adjustable from 1:0.8 to 1:1.2.

[0041] Specifically, the Bluetooth audio processing system includes a Bluetooth 5.3 audio module: supporting AAC / SBC decoding, with a transmission delay < 40 ms.

[0042] In this embodiment, the power supply system provides electrical energy for the U-shaped pillow;

[0043] Specifically, the power supply system is a 3.7V lithium polymer battery: with a capacity of 2000 mAh, supporting QC3.0 fast charging, and can be charged to 50% in 30 minutes.

[0044] Operation mode 1 (hardware working process):

[0045] The user connects the device via mobile phone Bluetooth and plays music;

[0046] The audio signal is converted into a digital signal through ADC (sampling rate 44.1 kHz, 16 bit);

[0047] The digital frequency divider extracts the low-frequency components (< 150 Hz) and converts them into PWM drive signals through the RMS power detection module;

[0048] The electromagnetic linear vibration component 4 generates vibrations according to the music rhythm (delay < 5 ms), and at the same time, the bone conduction speaker 3 plays the audio in the medium and high frequency bands.

[0049] Operation mode 2 (massage mode):

[0050] Music follow-up mode: The vibration intensity is matched with the music low-frequency amplitude in real time (dynamic range 30 - 90 dB);

[0051] Preset physiotherapy mode:

[0052] Relaxation mode: 80 Hz sine wave + white noise sound field (vibration intensity 0.3 G);

[0053] Vitality mode: 120 Hz square wave + natural sound effects (vibration intensity 0.7 G)

[0054] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bone conduction cervical massage U-shaped pillow based on audio vibration analysis, characterized in that, It includes a U-shaped pillow body (2), and on both sides of the U-shaped pillow body (2), there are symmetrically arranged bone conduction speakers (3); An antibacterial memory foam matrix (1), which is arranged inside the U-shaped pillow body (2) and contacts the user's skin; An electromagnetic linear vibration component (4), whose drive signal directly comes from the audio low-frequency band electrical signal; An integrated processor (5), including a Bluetooth audio processing system, with real-time frequency division and vibration signal extraction functions; A power supply system that provides electrical energy for the U-shaped pillow.

2. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 1, wherein The installation axes of the two bone conduction speakers (3) form an angle of 15-25° with the horizontal plane.

3. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 1, characterized in that, The electromagnetic linear vibration component (4) includes a voice coil motor (41), and the mass of the vibrator is ≤5g; A vibration conduction rod (42), made of magnesium aluminum alloy.

4. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 3, characterized in that, One end of the vibration conduction rod (42) is provided with a contact body (43), and the end contact surface of the contact body (43) is a bionic curved surface with a curvature radius of R8-R12mm.

5. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 1, characterized in that, The Bluetooth audio processing system includes a digital filter bank, and the frequency division points are set to be adjustable in two gears of 80Hz / 150Hz; A dynamic gain compensation circuit, and the conversion ratio of the vibration intensity to the audio low-frequency amplitude is adjustable from 1:0.8 to 1:1.

2.

6. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 1, characterized in that, The Bluetooth audio processing system includes a Bluetooth 5.3 audio module: supporting AAC / SBC decoding, with a transmission delay <40ms.

7. The bone conduction cervical massage U-shaped pillow based on audio vibration analysis according to claim 1, wherein, The power supply system is a 3.7V lithium polymer battery: with a capacity of 2000mAh, supporting QC3.0 fast charging, and can be charged to 50% in 30 minutes.

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