Bone conduction sleep pillow based on audio vibration analysis

Abstract

The invention discloses a bone conduction sleep pillow based on audio vibration analysis, which comprises a sleep pillow body, an integrally formed pillow back is arranged in the middle of the rear side of the sleep pillow body, and bone conduction loudspeakers are arranged on both sides of the top of the sleep pillow body; electromagnetic linear vibration assemblies are arranged at the tops of the sleep pillow body and the pillow back, and driving signals of the electromagnetic linear vibration assemblies directly come from audio low-frequency electric signals; 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 sleep pillow. The two bone conduction loudspeakers are symmetrically distributed about the central axis of the sleep pillow body. 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 sleeping pillows, and in particular to a bone conduction sleeping pillow based on audio vibration analysis. Background Art

[0002] With the development of the economy and the improvement of people's living standards, people's health awareness is increasing, and their pursuit of sleep quality is getting higher and higher, which has promoted the development of the pillow industry.

[0003] Currently available traditional pillows are mostly made of materials such as cotton, rice bran, and sponge, which are prone to breeding mites. Mites are extremely harmful. In mild cases, they can cause skin diseases such as papular urticaria and acne, and in severe cases, they can lead to diseases such as rhinitis and asthma. The structural design of traditional pillows is unreasonable and does not conform to ergonomic principles.

[0004] Existing smart sleep pillows typically use eccentric rotor motors with a fixed vibration frequency (100±10Hz), making them unable to synchronize with the rhythm of music. Furthermore, the vibration unit and the sound system are designed separately, resulting in a phase mismatch between the sound field and the somatosensory vibration. Market product pain points: Traditional motor vibrators produce mechanical noise >40dB, impacting the user experience; lithium battery life is <2 hours (measured data); and vibration energy transfer efficiency is low (<60%). Therefore, there is an urgent need to design a bone conduction sleep pillow based on audio vibration analysis to address these issues. Summary of the Invention

[0005] The purpose of the present invention is to provide a bone conduction sleeping pillow based on audio vibration analysis to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A bone conduction sleeping pillow based on audio vibration analysis, comprising a sleeping pillow body, an integrally formed pillow back being provided at the middle portion of the rear side of the sleeping pillow body, and bone conduction speakers being provided on both sides of the top of the sleeping pillow body;

[0008] The sleeping pillow body and the top of the pillow back are both provided with electromagnetic linear vibration components, whose driving signals are directly derived from the audio low-frequency band electrical signals;

[0009] Integrated processor, including Bluetooth audio processing system, with real-time frequency division and vibration signal extraction capabilities;

[0010] The power supply system provides electrical energy to the sleeping pillow.

[0011] As a preferred solution of the present invention, the two bone conduction speakers are symmetrically distributed about the central axis of the sleeping pillow body.

[0012] As a preferred solution of the present invention, the Bluetooth audio processing system includes a digital filter group, and the crossover point is set to two adjustable levels of 80Hz / 150Hz;

[0013] 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.

[0014] As a preferred solution of the present invention, the Bluetooth audio processing system includes a Bluetooth 5.3 audio module: supports AAC / SBC decoding, and the transmission delay is less than 40ms.

[0015] As a preferred solution of the present invention, the power supply system is a 3.7V lithium polymer battery: 2000mAh capacity, supports QC3.0 fast charging, and can be charged to 50% in 30 minutes.

[0016] In the above technical solution, the present invention provides a bone conduction sleep pillow based on audio vibration analysis, which has the following beneficial effects:

[0017] Through the processor, it is possible to directly analyze the low-frequency components (20-150Hz) in the music signal to drive the vibrator, so as to synchronize the vibration with the rhythm of the music. Through the bone conduction speaker, the bone conduction sound field (50-4000Hz) and the low-frequency vibration form a composite biomechanical stimulation, thereby improving the function of the sleeping pillow and having a better effect of reducing fatigue. Compared with traditional sleeping pillows, it is more intelligent and has better noise control, which is more conducive to people's use while sleeping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of a bone conduction sleep pillow based on audio vibration analysis provided by the present invention.

[0020] Figure 2 This is a structural schematic diagram from another angle provided for an embodiment of a bone conduction sleep pillow based on audio vibration analysis of the present invention.

[0021] Figure 3 This is a signal processing flowchart provided for an embodiment of a bone conduction sleep pillow based on audio vibration analysis of the present invention.

[0022] 1. Sleep pillow body; 2. Pillow back; 3. Bone conduction speaker; 4. Electromagnetic linear vibration component; 5. Processor. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, an embodiment of the present invention provides a bone conduction sleeping pillow based on audio vibration analysis, including a sleeping pillow body 1, an integrally formed pillow back 1 is provided in the middle of the rear side of the sleeping pillow body 1, and bone conduction speakers 3 are provided on both sides of the top of the sleeping pillow body 1; the tops of the sleeping pillow body 1 and the pillow back 2 are both provided with an electromagnetic linear vibration component 4, whose driving signal is directly derived from the audio low-frequency band electrical signal; an integrated processor 5, including a Bluetooth audio processing system, has real-time frequency division and vibration signal extraction functions; a power supply system provides power for the sleeping pillow.

[0025] In this embodiment, the sleeping pillow body 1 is provided with an integrally formed pillow back 2 at the middle portion of the rear side of the sleeping pillow body 1;

[0026] In this embodiment, bone conduction speakers 3 are provided on both sides of the top of the sleeping pillow body 1;

[0027] Specifically, the two bone conduction speakers 3 are symmetrically distributed about the central axis of the sleeping pillow body 1 .

[0028] In this embodiment, the driving signal of the electromagnetic linear vibration component 4 is directly derived from the audio low-frequency band electrical signal;

[0029] In this embodiment, the integrated processor 5 includes a Bluetooth audio processing system with real-time frequency division and vibration signal extraction functions;

[0030] Specifically, the Bluetooth audio processing system includes a digital filter bank with a crossover frequency set to 80Hz / 150Hz.

[0031] Specifically, in 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.

[0032] Specifically, the Bluetooth audio processing system includes a Bluetooth 5.3 audio module: supports AAC / SBC decoding, and transmission delay is less than 40ms.

[0033] In this embodiment, the power supply system provides power to the sleeping pillow;

[0034] Specifically, the power supply system is a 3.7V lithium polymer battery: 2000mAh capacity, supports QC3.0 fast charging, and can be charged to 50% in 30 minutes.

[0035] Operation method 1 (hardware workflow):

[0036] Users connect to the device via mobile phone Bluetooth and play music;

[0037] The audio signal is converted into a digital signal by ADC (sampling rate 44.1kHz, 16bit);

[0038] The digital frequency divider extracts the low-frequency component (<150Hz) and converts it into a PWM drive signal through the RMS power detection module;

[0039] The electromagnetic linear vibration component 4 generates vibration according to the beat of the music (delay < 5ms), while the bone conduction speaker 3 plays mid- and high-frequency audio.

[0040] Operation mode 2 (massage mode):

[0041] Music follow-up mode: the vibration intensity matches the low-frequency amplitude of the music in real time (dynamic range 30-90dB);

[0042] Preset therapy modes:

[0043] Sleep mode: 0-20Hz sine wave + white noise sound field (vibration intensity 0-0.1G)

[0044] Relaxation mode: 80Hz sine wave + white noise sound field (vibration intensity 0.3G);

[0045] Vitality mode: 120Hz square wave + natural sound effects (vibration intensity 0.7G).

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various 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.

Claims

1. A bone conduction sleeping pillow based on audio vibration analysis, characterized in that: It comprises a sleeping pillow body (1), wherein an integrally formed pillow back (2) is provided at the middle of the rear side of the sleeping pillow body (1), and bone conduction speakers (3) are provided on both sides of the top of the sleeping pillow body (1); The top of the sleeping pillow body (1) and the pillow back (2) are both provided with an electromagnetic linear vibration component (4), the driving signal of which is directly derived from an audio low-frequency band electrical signal; An integrated processor (5), including a Bluetooth audio processing system, having real-time frequency division and vibration signal extraction functions; The power supply system provides electrical energy to the sleeping pillow.

2. The bone conduction sleeping pillow based on audio vibration analysis according to claim 1, characterized in that: The two bone conduction speakers (3) are symmetrically distributed about the central axis of the sleeping pillow body (1).

3. The bone conduction sleeping pillow based on audio vibration analysis according to claim 1, characterized in that: The Bluetooth audio processing system includes a digital filter bank with an adjustable crossover frequency of 80Hz / 150Hz. 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.

4. The bone conduction sleeping 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: supports AAC / SBC decoding, and transmission delay is less than 40ms.

5. The bone conduction sleeping pillow based on audio vibration analysis according to claim 1, characterized in that: The power supply system is a 3.7V lithium polymer battery: 2000mAh capacity, supports QC3.0 fast charging, and can be charged to 50% in 30 minutes.

Images