Flexible sleep monitoring device
By integrating EEG sensors, attitude sensors and digital microphones in the sleep monitoring device, collecting multiple sleep state data, the problem of poor analysis accuracy caused by single data acquisition in the prior art is solved, and more accurate sleep state analysis and sleep quality assessment are achieved.
Patent Information
- Application Number
- CN202420475380.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-12
AI Technical Summary
Among the existing sleep monitoring technologies, the data collection is single, resulting in poor accuracy of sleep state analysis.
A flexible sleep monitoring device was designed, integrating an EEG sensor, a posture sensor and a digital microphone, and connected to these sensors through a Bluetooth master MCU to collect brain wave signals, sleep posture and snoring audio signals, and compress them and upload them to the cloud.
Through the comprehensive collection and analysis of a variety of data sources, the accuracy of the human sleep state is improved, helping users understand the quality of sleep, and providing massage and soothing effects through the electrical stimulation function of the electrode contacts.
Smart Images
Figure CN222565782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sleep monitoring, in particular to a flexible sleep monitoring device. Background Art
[0002] With the improvement of people's material living standards and the development of science and technology, more and more people want to monitor their physical condition in real time. Sleep and rest can account for one-third of people's daily life. If this time can be used to monitor through technical means, then through big data analysis and give users appropriate suggestions.
[0003] In the prior art, the user's sleep data is collected mostly through electromyographic signals or the vibration of gyroscope gravity sensors. The sampled data is single, resulting in poor accuracy of data analysis results. In view of this, we propose a flexible sleep monitoring device. Utility Model Content
[0004] The purpose of the utility model is to provide a flexible sleep monitoring device to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A flexible sleep monitoring device comprises: a Bluetooth main control MCU, and an electroencephalogram sensor, a posture sensor and a digital microphone connected to the Bluetooth main control MCU by signal; the Bluetooth main control MCU is connected to the electroencephalogram sensor via an SPI interface and an ADC interface, wherein the SPI interface is used by the Bluetooth main control MCU to configure the internal register of the electroencephalogram sensor, and the ADC interface is used by the Bluetooth main control MCU to obtain the brain wave signal sampled by the electroencephalogram sensor; the Bluetooth main control MCU is connected to the posture sensor via an I2C interface to obtain the user's sleeping posture information; the Bluetooth main control MCU is connected to the digital microphone via a PDM interface to obtain the snoring audio signal of the user when sleeping; the Bluetooth main control MCU compresses the obtained brain wave signal, sleeping posture information and snoring audio signal and uploads them to the cloud via Bluetooth.
[0007] Preferably, it also includes a charging module for powering the Bluetooth main control MCU, the charging module includes: a charging chip, and a contact spring switch and a battery connected to the charging chip, and the battery is connected to the Bluetooth main control MCU via a low voltage difference power supply.
[0008] Preferably, two groups of electrode contacts are connected to the EEG sensor, and the electrode contacts are in contact with the user's skin via electrode stickers to sample brain wave signals.
[0009] Preferably, it also includes an electrical stimulation circuit connected to the Bluetooth main control MCU, and the electrical stimulation circuit controls the electrical stimulation mode of the electrode contacts through the Bluetooth main control MCU.
[0010] Preferably, the Bluetooth master control MCU is also connected to a non-volatile memory via an SPI interface for storing the acquired brain wave signals, sleeping posture information and snoring audio signals.
[0011] Preferably, the Bluetooth master control MCU is also connected to a crystal oscillator for providing a stable clock signal for the Bluetooth master control MCU.
[0012] Compared with the prior art, the beneficial effects of the utility model are: the flexible sleep monitoring device can monitor the brain wave signals, sleeping posture and snoring audio signals of the human body in the sleeping state respectively through the EEG sensor, posture sensor and digital microphone, and analyze the user's sleep state through the three kinds of state data information. There are more data sources, which makes the analysis of the human body's sleep state more accurate, and is also beneficial for the user to understand his sleep quality according to the obtained analysis data. The electrode contacts can not only apply electrical stimulation to the user's skin, but also massage and soothe the user's nerves. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic block diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic structural diagram of the charging module in the utility model;
[0015] Figure 3 This is a circuit connection principle diagram of the electrical stimulation circuit in the utility model.
[0016] In the figure: 1. Bluetooth main control MCU; 2. EEG sensor; 21. Electrode contacts; 3. Posture sensor; 4. Digital microphone; 5. Charging module; 51. Charging chip; 52. Contact spring switch; 53. Battery; 54. Low voltage difference power supply; 6. Electric stimulation circuit; 7. Non-volatile memory; 8. Crystal oscillator. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
[0019] A flexible sleep monitoring device, such as Figure 1 As shown, it includes: a Bluetooth main control MCU1, and an EEG sensor 2, a posture sensor 3 and a digital microphone 4 connected to the Bluetooth main control MCU1 signal; the Bluetooth main control MCU1 is connected to the EEG sensor 2 through an SPI interface and an ADC interface, wherein the SPI interface is used for the Bluetooth main control MCU1 to configure the internal register of the EEG sensor 2, and the ADC interface is used for the Bluetooth main control MCU1 to obtain the brain wave signal sampled by the EEG sensor 2. Specifically, two groups of electrode contacts 21 are connected to the EEG sensor 2, and the electrode contacts 21 contact the user's skin through electrode stickers to sample the brain wave signal; the Bluetooth main control MCU1 is connected to the posture sensor 3 through an I2C interface to obtain the user's sleeping posture information; the Bluetooth main control MCU1 is connected to the digital microphone 4 through a PDM interface to obtain the snoring audio signal of the user when sleeping; the Bluetooth main control MCU1 compresses the obtained brain wave signal, sleeping posture information and snoring audio signal and uploads them to the cloud through Bluetooth. Therefore, when the flexible sleep monitoring device is in use, the EEG sensor 2, the posture sensor 3, and the digital microphone 4 can respectively monitor the brain wave signals, sleeping posture, and snoring audio signals of the human body in the sleeping state, and analyze the user's sleep state through the three kinds of state data information. With more data sources, the analysis of the human body's sleep state is more accurate, and it is also beneficial for the user to understand his sleep quality based on the obtained analysis data.
[0020] like Figure 2As shown, it also includes a charging module 5 for powering the Bluetooth main control MCU1. The charging module 5 includes: a charging chip 51, a contact spring switch 52 connected to the charging chip 51, and a battery 53, and the battery 53 is connected to the Bluetooth main control MCU1 through a low voltage difference power supply 54. By connecting the charging chip 51 to the contact spring switch 52, it can be controlled whether the battery 53 is powered by the low voltage difference power supply 54 for the Bluetooth main control MCU1, and the charging chip 51 provides a charging and discharging function for the battery, so that the battery can operate normally without a power line. In this embodiment, the charging module 5 provided by the setting is used to power the Bluetooth main control MCU1, the contact spring switch 52 controls the battery 53 through the charging chip 51 to power the Bluetooth main control MCU1 through the low voltage difference power supply 54, and the charging chip 51 provides the battery with a charging and discharging function, which are all prior art, and can be fully realized by those skilled in the art, and will not be repeated here.
[0021] like Figure 3 As shown, it also includes an electric stimulation circuit 6 connected to the Bluetooth main control MCU1, and the electric stimulation circuit 6 is an H-bridge electric stimulation circuit, and the electric stimulation circuit 6 controls the electric stimulation mode of the electrode contact 21 through the Bluetooth main control MCU1. As shown in the figure, the two groups of electrode contacts 21 in the present embodiment are respectively replaced by the electrode point 1 to the electrode point 2 in the figure, wherein the A, B, C, and D endpoints are the control IO ports of the Bluetooth main control MCU1, and when the IO ports of A and D are high (at this time B and C are low), the NPN triode controlled by them is turned on, and at this time, the human skin is used as a conductor, and the current is from the electrode point 1 to the electrode point 2. When the IO ports of B and C are high (at this time A and D are low), the current is from the electrode point 2 to the electrode point 1, which is opposite to the previous one. If the Bluetooth main control MCU1 controls the high and low level on-off time of the IO, the frequency and intensity of the electric stimulation can be controlled, thereby providing a variety of different electric stimulation modes, and at the same time, the skin of the electric stimulation user can also play a role in massaging and soothing the user's nerves. In this embodiment, the Bluetooth main control MCU1 controls the electrical stimulation mode of the electrode contact 21 through the electrical stimulation circuit 6, which belongs to the prior art and can be fully realized by those skilled in the art, and will not be described again.
[0022] Specifically, the Bluetooth master MCU1 is also connected to a non-volatile memory 7 through an SPI interface for storing acquired brain wave signals, sleep posture information, and snoring audio signals. The Bluetooth master MCU1 is also connected to a crystal oscillator 8 for providing a stable clock signal for the Bluetooth master MCU1. The non-volatile memory 7 facilitates the Bluetooth master MCU1 to temporarily store the sampled data, and the crystal oscillator 8 provides a stable clock signal for the operation of the Bluetooth master MCU1.
[0023] More specifically, the EEG sensor 2 used in this embodiment can adopt a high-precision, low-power analog front-end chip produced by Xinsen Micro or Texas Instruments to measure weak bioelectric signals, thereby obtaining the user's brain wave signals.
[0024] When the flexible sleep monitoring device of this embodiment is in use, the brain wave signals, sleeping posture and snoring audio signals of the human body in the sleeping state can be monitored respectively through the EEG sensor 2, the posture sensor 3 and the digital microphone 4, and the user's sleeping state can be analyzed through the three kinds of state data information. More data sources make the analysis of the human body's sleeping state more accurate, and it is also beneficial for the user to understand his sleep quality according to the obtained analysis data. In addition, the electrode contacts 21 can massage and soothe the user's nerves while applying electrical stimulation to the user's skin.
[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A flexible sleep monitoring device, characterized in that: include: A Bluetooth master MCU (1), and an electroencephalogram sensor (2), a posture sensor (3) and a digital microphone (4) connected to the Bluetooth master MCU (1) by signals; The Bluetooth master control MCU (1) is connected to the electroencephalogram sensor (2) via an SPI interface and an ADC interface, wherein the SPI interface is used by the Bluetooth master control MCU (1) to configure the internal register of the electroencephalogram sensor (2), and the ADC interface is used by the Bluetooth master control MCU (1) to obtain the electroencephalogram signal sampled by the electroencephalogram sensor (2); The Bluetooth master control MCU (1) is connected to the posture sensor (3) via an I2C interface to obtain the user's sleeping posture information; The Bluetooth master control MCU (1) is connected to the digital microphone (4) via a PDM interface, so as to obtain the snoring audio signal of the user when he is sleeping; The Bluetooth master control MCU (1) compresses the acquired brain wave signals, sleeping posture information and snoring audio signals and uploads them to the cloud via Bluetooth.
2. The flexible sleep monitoring device according to claim 1, characterized in that: The device also comprises a charging module (5) for supplying power to the Bluetooth main control MCU (1), wherein the charging module (5) comprises: a charging chip (51), a contact spring switch (52) connected to the charging chip (51), and a storage battery (53), wherein the storage battery (53) is connected to the Bluetooth main control MCU (1) via a low voltage difference power supply (54).
3. The flexible sleep monitoring device according to claim 1, characterized in that: Two groups of electrode contacts (21) are connected to the electroencephalogram sensor (2), and the electrode contacts (21) are in contact with the user's skin via electrode stickers to sample electroencephalogram signals.
4. The flexible sleep monitoring device according to claim 3, characterized in that: It also includes an electrical stimulation circuit (6) connected to the Bluetooth main control MCU (1), and the electrical stimulation circuit (6) controls the electrical stimulation mode of the electrode contact (21) through the Bluetooth main control MCU (1).
5. The flexible sleep monitoring device according to claim 1, characterized in that: The Bluetooth master control MCU (1) is also connected to a non-volatile memory (7) via an SPI interface, and is used to store acquired brain wave signals, sleeping posture information and snoring audio signals.
6. The flexible sleep monitoring device according to claim 1, characterized in that: The Bluetooth master control MCU (1) is also connected to a crystal oscillator (8) for providing a stable clock signal for the Bluetooth master control MCU (1).