An adaptive sleep environment system

Abstract

This invention provides an adaptive sleep environment system, belonging to the field of smart home technology. It includes: a sound acquisition module for acquiring the wake-up voice of a monitored subject and the ambient noise within the sleep space of the monitored subject; a vital sign monitoring module for monitoring the sleep vital sign parameters of the monitored subject; a directional audio playback module for playing sleep-aiding audio; and a system host that, in response to the wake-up voice, generates reverse audio based on the ambient noise and synthesizes the reverse audio into the sleep-aiding audio. The directional audio playback module is also used to directionally play the synthesized reverse audio towards the direction of the monitored subject and adjust the volume of the sleep-aiding audio based on the sleep state determined by the sleep vital sign parameters. Beneficial effects: By directionally playing sleep-aiding audio, it avoids interference with other sleepers sharing the same space, thus improving their sleep environment.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, and in particular to an adaptive sleep environment system. Background Technology

[0002] Good sleep is crucial for people's physical and mental health. However, in today's society, people generally face difficulties falling asleep and poor sleep quality due to work pressure and other factors. Research has found that acoustic intervention can trigger various physiological responses, putting the body in a more relaxed and quiet state, which helps stimulate various physiological functions, thereby promoting sleep and improving sleep quality.

[0003] Currently, most smart sleep aid systems on the market use simple white noise as an acoustic intervention method. When multiple users are in the same sleep space, this uniformly played audio can disturb those sharing the space and affect their sleep. Furthermore, existing sleep aid systems fail to adequately consider noise factors in the sleep environment and the sleep vital signs of the monitored individuals, making it impossible to adaptively adjust to the actual situation. Summary of the Invention

[0004] To address the above technical problems, this invention provides an adaptive sleep environment system.

[0005] The technical problem solved by this invention can be achieved by the following technical solutions: An adaptive sleep environment system, comprising: The sound acquisition module is used to acquire the wake-up voice of the monitored object and the environmental noise in the sleep space where the monitored object is located; The vital signs monitoring module is used to monitor the sleep vital signs parameters of the monitored object; A directional audio playback module is used to play sleep-aid audio. The system host is electrically connected to the sound acquisition module, the vital signs monitoring module and the directional audio playback module respectively. In response to the wake-up voice of the monitored object, the system host generates reverse audio based on the environmental noise collected by the sound acquisition module and synthesizes the reverse audio into the sleep aid audio. The directional audio playback module is also used to play synthesized reverse audio in the direction of the monitored object, and to adjust the volume of the sleep-aid audio according to the sleep state determined by the sleep signs parameters.

[0006] The adaptive sleep environment system of the present invention includes a sound acquisition module comprising a microphone array, wherein the microphone array is electrically connected to the system host.

[0007] The adaptive sleep environment system of the present invention includes a directional audio playback module comprising a directional speaker host and a speaker array electrically connected to the directional speaker host, wherein the directional speaker host is electrically connected to the system host.

[0008] The adaptive sleep environment system of the present invention includes a vital signs monitoring module comprising: multiple vital signs monitoring sensors and a vital signs monitoring host, wherein the vital signs monitoring host is electrically connected to the multiple vital signs monitoring sensors and the system host respectively.

[0009] The adaptive sleep environment system of the present invention further includes: a bed frame and a headboard, wherein the sound acquisition module and the directional audio playback module are disposed inside the headboard, and the headboard is provided with a sound acquisition channel corresponding to the sound acquisition module and an audio output channel corresponding to the directional audio playback module on the side facing the bed frame, and the vital signs monitoring module and the system host are disposed inside the bed frame.

[0010] The adaptive sleep environment system of the present invention comprises multiple vital sign monitoring sensors divided into several sensing modules. The vital sign monitoring sensors in each sensing module are connected in series, and each sensing module is linearly distributed along the length of the bed.

[0011] In the adaptive sleep environment system of the present invention, among the plurality of vital sign monitoring sensors, the vital sign monitoring sensors close to the headboard are distributed with a first density, and the vital sign monitoring sensors far from the headboard are distributed with a second density.

[0012] In the adaptive sleep environment system of the present invention, the second density is less than the first density.

[0013] The adaptive sleep environment system of the present invention further includes a directional audio playback module: a volume control unit, which adjusts the volume of the sleep aid audio to a preset range of initial volume in response to whether the sleep state is a waking state or a light sleep state; and reduces the volume of the sleep aid audio until it is turned off in response to whether the sleep state is a deep sleep state within a preset time period.

[0014] The adaptive sleep environment system of the present invention includes one or more users in the same sleep space, and at least one of the multiple users is the monitored object, wherein the user who issues the wake-up voice is the monitored object.

[0015] The advantages or beneficial effects of the technical solution of this invention are as follows: This invention plays sleep-aid audio in a directional manner towards the monitored subject based on the subject's wake-up voice, avoiding interference with other sleepers sharing the same space and improving their sleep environment. Simultaneously, it generates reverse audio based on ambient noise and synthesizes it into the sleep-aid audio to cancel out noise in the sleep space. Furthermore, it can determine the monitored subject's sleep state based on sleep vital signs parameters, thereby adjusting the volume of the sleep-aid audio to further optimize the sleep environment and provide users with a higher quality and more comfortable sleep experience. Attached Figure Description

[0016] Figure 1 This is a structural block diagram of the adaptive sleep environment system in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the adaptive sleep environment system in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the sound acquisition module and the directional audio playback module in a preferred embodiment of the present invention; Figure 4 The following is a flowchart of the sleep environment adaptation system in a preferred embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0020] See Figure 1 In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, an adaptive sleep environment system is provided, comprising: The sound acquisition module 1 is used to acquire the wake-up voice of the monitored object and the environmental noise in the sleep space where the monitored object is located; Vital signs monitoring module 2 is used to monitor the sleep vital signs parameters of the monitored subject; 3. Directional audio playback module is used to play sleep-aid audio. The system host 4 is electrically connected to the sound acquisition module 1, the vital signs monitoring module 2 and the directional audio playback module 3 respectively. In response to the wake-up voice of the monitored object, the system host 4 generates reverse audio based on the environmental noise collected by the sound acquisition module 1 and synthesizes the reverse audio into the sleep aid audio. The directional audio playback module 3 is also used to play synthesized reverse audio in the direction of the monitored object, and to determine the sleep state of the monitored object based on sleep vital signs parameters, and then adjust the volume of the sleep audio according to the sleep state.

[0021] Specifically, addressing the issue that existing methods of uniformly playing audio for acoustic intervention to aid sleep can interfere with the sleep state of those sharing a space, this embodiment addresses this problem by playing sleep-aiding audio in a directional manner towards the monitored subject based on the collected wake-up voice of the monitored subject. This prevents the sound from spreading into the surrounding space, thereby reducing interference with those sharing a space while providing acoustic intervention to aid sleep for the monitored subject and improving their sleep environment.

[0022] At the same time, based on the environmental noise collected by the sound acquisition module 1, an inverse audio with the same amplitude but opposite phase to the noise is generated, and the inverse audio is synthesized into the sleep-aid audio to cancel out the noise, thereby reducing the impact of environmental noise in the sleep space on the monitored subject and generating sleep-aid music suitable for personalized needs, creating a sleep-aid atmosphere for the monitored subject.

[0023] In addition, the system can determine the sleep state of the monitored subject based on sleep vital signs parameters, and then adjust the volume of the sleep aid audio to further optimize the sleep environment and provide users with a better and more comfortable sleep environment experience.

[0024] The adaptive sleep environment system of the present invention, such as Figure 2 As shown, it also includes: a bed frame 101 and a headboard 102. The sound acquisition module 1 and the directional audio playback module 3 are located inside the headboard 102. The headboard 102 has a sound acquisition channel corresponding to the sound acquisition module 1 and an audio output channel corresponding to the directional audio playback module 3 on the side facing the bed frame 101. The vital signs monitoring module 2 and the system host 4 are located inside the bed frame 101.

[0025] Specifically, this embodiment provides a bed for deploying the adaptive sleep environment system of the present invention, which is particularly suitable for scenarios where multiple users are in the same sleep space. Through targeted sleep aids, it achieves a personalized sleep experience. For example, in a bedroom, multiple users can each enjoy sleep-aid audio suitable for themselves, without affecting their sleep quality due to mutual interference between audio sources.

[0026] In this embodiment, the sound acquisition channel and the audio output channel are implemented through openings in the headboard 102 (not shown in the figure), so as to avoid the obstruction of the headboard material itself and affect the noise acquisition effect or playback effect.

[0027] The adaptive sleep environment system of the present invention includes a sound acquisition module 1 comprising a microphone array 11, which is electrically connected to the system host 4.

[0028] Specifically, such as Figure 3 As shown, the microphone array 11 consists of multiple microphones, each of which is connected to the microphone host 12. The microphone host 12 transmits the wake-up voice and environmental noise collected by the microphone array 11 to the system host 4 after preliminary preprocessing.

[0029] The adaptive sleep environment system of the present invention includes a directional audio playback module 3 comprising a directional speaker host 31 and a speaker array 32 electrically connected to the directional speaker host 31, wherein the directional speaker host 31 is electrically connected to the system host 4.

[0030] Specifically, in this embodiment, as Figure 3 As shown, the speaker array 32 consists of multiple speakers, each of which is connected to a directional speaker host 31. The directional speaker host 31 uses existing algorithms to identify the direction from which the wake-up voice is emitted, determines the specific direction of the monitored object, and then uses linear array speakers or parametric array technology to form a directional acoustic beam through coherent superposition of sound waves, projecting the sleep-aid audio onto the area where the monitored object is located, thereby achieving directional playback of the sleep-aid audio and avoiding interference with other people in the same sleep space.

[0031] In some implementations, multiple speakers can be controlled uniformly. For example, when sleep-aid audio is needed, all speakers turn on simultaneously, playing the same audio; when playback is not needed, all speakers turn off simultaneously, making operation simple and convenient. This uniform control method is suitable for scenarios where only a single monitored subject or multiple monitored subjects have consistent sleep-aid audio needs.

[0032] In other implementations, multiple speakers can also be controlled to play or turn off independently. For example, when there are multiple monitored subjects in the same sleep space, and each monitored subject has different sleep-aid audio preferences or needs, such as a first monitored subject and a second monitored subject, some speakers can be directed to play the first sleep-aid audio to the first monitored subject, and some speakers can be directed to play the second sleep-aid audio to the second monitored subject, achieving a personalized sleep acoustic experience while avoiding interference to users who do not require sleep-aid intervention.

[0033] The adaptive sleep environment system of the present invention includes a vital signs monitoring module 2 comprising: multiple vital signs monitoring sensors 21 and a vital signs monitoring host 22, wherein the vital signs monitoring host 22 is electrically connected to the multiple vital signs monitoring sensors 21 and the system host 4 respectively.

[0034] Specifically, the vital signs monitoring module 2 mainly consists of multiple vital signs monitoring sensors 21 and a vital signs monitoring host 22. The vital signs monitoring sensors 21 transmit the collected sleep vital signs data to the vital signs monitoring host 22. After preliminary processing and integration of these data, the vital signs monitoring host 22 transmits the data to the system host 4.

[0035] In some embodiments, the vital signs monitoring sensor 21 can be deployed on the surface of the bed frame 101, with a sensor mounting slot on the surface of the bed frame 101, the size and shape of which are adapted to the vital signs monitoring sensor 21. The vital signs monitoring sensor 21 is installed in the sensor mounting slot, and after installation, the surface of the vital signs monitoring sensor 21 is flush with the surface of the bed frame 101, ensuring the flatness of the bed surface and avoiding discomfort or safety hazards to the user caused by the sensor protruding; at the same time, it makes the overall appearance of the bed frame neater and more beautiful, and the presence of the sensor will not affect the overall visual effect.

[0036] In other embodiments, the vital signs monitoring sensor 21 can also be deployed in the mattress that is matched with the bed frame 101, so that the vital signs monitoring sensor 21 is closer to the human body and can capture various subtle changes in vital signs during sleep, such as slight fluctuations in heart rate and slight fluctuations in breathing.

[0037] In the adaptive sleep environment system of the present invention, multiple vital sign monitoring sensors 21 are divided into several sensing modules. The vital sign monitoring sensors 21 in each sensing module are connected in series, and each sensing module is linearly distributed along the length of the bed 101.

[0038] Specifically, in this embodiment, multiple vital sign monitoring sensors 21 are grouped together and connected in series via transmission line 210 to form a sensing module. The vital sign monitoring sensors 21 within the sensing module can be adaptively arranged along the length of the bed 101, including but not limited to: extending continuously from the head area to the foot area, from the head area to the middle area of ​​the bed, or from the middle area to the foot area of ​​the bed, to meet the needs of different monitoring ranges and arrangement forms.

[0039] Furthermore, the vital signs monitoring sensor 21 includes, but is not limited to, a heart rate sensor and a breathing sensor, used to monitor sleep vital signs parameters such as heart rate and breathing.

[0040] Furthermore, the vital signs monitoring sensor 21 may also include a pressure sensor, which is used to collect pressure distribution data generated when the monitored object is lying down in real time. By using existing algorithms, the user's lying position, body outline and orientation on the bed 101 can be identified and located, thereby determining the specific location of the monitored object and providing a location basis for directional audio playback.

[0041] In the adaptive sleep environment system of the present invention, among the multiple vital sign monitoring sensors 21, the vital sign monitoring sensors 21 close to the headboard 102 are distributed with a first density, and the vital sign monitoring sensors 21 far from the headboard 102 are distributed with a second density.

[0042] In the adaptive sleep environment system of the present invention, the second density is less than the first density. For example... Figure 2 As shown, the density of vital sign monitoring sensors near the headboard 102 is greater than that far from the headboard 102. The upper body, especially the area near the head, contains a large amount of key vital sign information, such as heart rate and respiration. Concentrating more sensors near the headboard 102 allows for more accurate capture of this key information, improving the accuracy and reliability of monitoring.

[0043] Furthermore, the distribution density areas of the multiple vital sign monitoring sensors 21 can be further divided according to monitoring needs, optimizing deployment costs and avoiding excessive waste of resources while ensuring that basic monitoring requirements are met. For example, the bed 101 can be further divided into a central area and two side areas, with the vital sign monitoring sensors 21 in the central area of ​​the bed distributed at a third density, and the vital sign monitoring sensors 21 in the side areas of the bed distributed at a first density and a second density, respectively.

[0044] In some implementations, the third density is less than the first density, and the third density is also less than the second density. The first density is the same as or similar to the second density, that is, the distribution density of vital sign monitoring sensors in the middle area of ​​the bed is less than the distribution density of vital sign monitoring sensors in the two side areas.

[0045] In other embodiments, the first density, the third density, and the second density decrease sequentially, that is, the distribution density of the vital signs monitoring sensor 21 is set in a gradient decreasing direction from the head of the bed to the foot of the bed, so as to match the different needs of different parts of the human body for vital signs monitoring sensitivity.

[0046] Furthermore, the directional audio playback module 3 is also used to adaptively adjust the playback volume of the sleep-aid audio. Volume adjustment methods include, but are not limited to, manual setting by the user and voice adjustment. For example, the user can manually set the initial volume through the interactive interface or terminal interface, or the user can set the volume through voice control commands, adjusting the sleep-aid audio volume to a target volume that is comfortable for the user, and using that volume as the initial volume.

[0047] Furthermore, the directional audio playback module 3 is also used to adjust the volume of the sleep aid audio according to the real-time sleep state of the monitored object, so as to realize automatic volume adjustment based on the sleep state.

[0048] The adaptive sleep environment system of the present invention further includes a directional audio playback module 3: a volume control unit, which adjusts the volume of the sleep aid audio to a preset range of the initial volume in response to whether the sleep state is a waking state or a light sleep state; and reduces the volume of the sleep aid audio until it is turned off in response to whether the sleep state is a deep sleep state within a preset time period.

[0049] Specifically, when the monitored subject is detected to be awake or in a light sleep state, the playback volume of the sleep aid audio is maintained within the initial volume setting range.

[0050] When the monitored subject is detected to have entered a deep sleep state, the playback volume of the sleep-aid audio is gradually reduced over a preset time period until it is completely turned off. Specifically, the volume of the sleep-aid audio is gradually reduced according to preset time steps and decay rates, eventually turning it off silently.

[0051] The preset time period can be set by the system default or by the user, including but not limited to 10 minutes, 15 minutes, 30 minutes, 60 minutes, 90 minutes or other user-specified time intervals.

[0052] The adaptive sleep environment system of the present invention includes one or more users in the same sleep space, and at least one of the users is the monitored object, wherein the user who issues the wake-up voice is the monitored object.

[0053] Specifically, in this embodiment, when a single user is accommodated in the same sleep space, that user is used as the monitored object for acoustic sleep-aiding intervention.

[0054] When multiple users reside in the same sleep space, the user who issues the wake-up voice command is designated as the monitored user. In addition, the system supports specifying additional monitored users. Besides the user who actively triggers the wake-up voice command, other users within the same sleep space can be added as monitored users based on their selection. Targeted acoustic sleep aids and adaptive environmental interventions can then be applied to these users, enabling differentiated and personalized sleep regulation in multi-user scenarios.

[0055] Furthermore, the system of the present invention also includes a storage module electrically connected to the system host 4. The storage module is used to pre-store various types of sleep-aid audio. The storage module can also support external audio import to receive and store custom audio files imported by the user from external devices, forming a user-exclusive audio library, which is convenient for the user to retrieve, switch, and play in real time according to usage needs.

[0056] In this embodiment, the sleep-aid audio includes, but is not limited to, white noise, natural ambient sounds, soothing instrumental music, and user-defined sleep-aid music, in order to meet the personalized sleep-aid auditory needs of different users.

[0057] Furthermore, such as Figure 4 As shown, after the user lies down in bed, the workflow of the adaptive sleep environment system of this invention is as follows: Step 1: Wake up the system with your voice and power on; Step 21: System host 4 activates the microphone closest to the user; Step 22: Collects ambient noise; Step 23: Analyzes the ambient noise and generates inverse audio based on the noise frequency; Step 24: Combines the inverse audio with the currently playing sleep aid audio to cancel out the noise; Step 31: The system host 4 identifies the direction from which the voice is emitted; Step 32: The synthesized reverse audio is played in the direction of the monitored object to aid sleep; Step 33: The user controls the initial volume to a comfortable level via voice. Step 41: System host 4 starts sleep monitoring; Step 42: Collect sleep vital signs parameters such as heart rate and respiration of the monitored subject; Step 43: Determine the sleep state of the monitored subject: awake state, light sleep state, deep sleep state; Step 5: The system host 4 automatically adjusts the volume based on the ambient noise and the sleep state of the monitored object, whether it is in a waking state or a light sleep state, so that it fluctuates slightly within the initial volume setting range. Step 6: After the monitored subject enters a deep sleep state, the volume gradually decreases over a preset time period (e.g., 10-15 minutes) until it is turned off, and the system exits.

[0058] The execution of steps 21-24, 31-33, and 41-43 above can be performed sequentially, in parallel, or steps 21-24 and 41-43 can be performed first, followed by steps 31-33. This invention does not limit the execution of these steps.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present invention.

Claims

1. An adaptive sleep environment system, characterized in that, include: The sound acquisition module is used to acquire the wake-up voice of the monitored object and the environmental noise in the sleep space where the monitored object is located; The vital signs monitoring module is used to monitor the sleep vital signs parameters of the monitored object; A directional audio playback module is used to play sleep-aid audio. The system host is electrically connected to the sound acquisition module, the vital signs monitoring module and the directional audio playback module respectively. In response to the wake-up voice of the monitored object, the system host generates reverse audio based on the environmental noise collected by the sound acquisition module and synthesizes the reverse audio into the sleep aid audio. The directional audio playback module is also used to play synthesized reverse audio in the direction of the monitored object, and to adjust the volume of the sleep-aid audio according to the sleep state determined by the sleep signs parameters.

2. The adaptive sleep environment system according to claim 1, characterized in that, The sound acquisition module includes a microphone array, which is electrically connected to the system host.

3. The adaptive sleep environment system according to claim 1, characterized in that, The directional audio playback module includes a directional speaker host and a speaker array electrically connected to the directional speaker host, and the directional speaker host is electrically connected to the system host.

4. The adaptive sleep environment system according to claim 1, characterized in that, The vital signs monitoring module includes: multiple vital signs monitoring sensors and a vital signs monitoring host, wherein the vital signs monitoring host is electrically connected to the multiple vital signs monitoring sensors and the system host respectively.

5. The adaptive sleep environment system according to claim 4, characterized in that, Also includes: The bed frame and headboard are provided. The sound acquisition module and the directional audio playback module are located inside the headboard. The headboard has a sound acquisition channel corresponding to the sound acquisition module and an audio output channel corresponding to the directional audio playback module on the side facing the bed frame. The vital signs monitoring module and the system host are located inside the bed frame.

6. The adaptive sleep environment system according to claim 5, characterized in that, The multiple vital sign monitoring sensors are divided into several sensing modules. The vital sign monitoring sensors in each sensing module are connected in series, and each sensing module is linearly distributed along the length of the bed.

7. The adaptive sleep environment system according to claim 5, characterized in that, Of the plurality of vital sign monitoring sensors, those closer to the headboard are distributed at a first density, while those farther from the headboard are distributed at a second density.

8. The adaptive sleep environment system according to claim 7, characterized in that, The second density is less than the first density.

9. The adaptive sleep environment system according to claim 1, characterized in that, The directional audio playback module further includes: a volume control unit, which adjusts the volume of the sleep aid audio to a preset range of initial volume in response to whether the sleep state is a waking state or a light sleep state; and reduces the volume of the sleep aid audio until it is turned off within a preset time period in response to whether the sleep state is a deep sleep state.

10. The adaptive sleep environment system according to claim 1, characterized in that, The same sleep space contains one or more users, and at least one of the multiple users is the monitored object, wherein the user who issues the wake-up voice is the monitored object.

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