Pillow with human body monitoring function

Abstract

The application discloses a pillow with human body monitoring function, which comprises a pillow body, a sensor module, a wireless communication module and a power module; the sensor module is built in the pillow body, detects the micro-vibration signal generated by the human body and the use state of the pillow; the wireless communication module is built in one side of the pillow body, is electrically connected with the sensor module, and receives the signal of the sensor module; the power module is built in one side of the pillow body, and provides electric energy for the sensor module and the wireless communication module; the sensor module is installed in the area with the pillow geometric center as the reference, front and back ±12 cm, left and right ±20 cm, and depth less than or equal to 50 mm. The system has the characteristics of non-contact, low power consumption and high integration, which greatly improves the user experience. Meanwhile, the abnormal alarm function of the system can timely remind the user or the caretaker, and effectively improves the intelligent level of sleep health management.

Description

Technical Field

[0001] This invention relates to the field of physiological parameters and posture monitoring, and in particular to a pillow with human body monitoring function. Background Technology

[0002] Sleep is a vital component of human health, and its quality directly impacts an individual's physiological and psychological state. Real-time, non-invasive monitoring of physiological parameters during sleep, such as heart rate (HR), respiratory rate (RR), and blood pressure (BP), has significant application value. Real-time heart rate monitoring can rapidly detect abnormal cardiac activity, real-time respiratory rate monitoring can provide timely warnings of sleep apnea, and continuous, non-invasive monitoring of blood pressure, as an important cardiovascular dynamic parameter, is of great significance for assessing cardiac function, early diagnosis of cardiovascular diseases, and guiding clinical treatment. Currently, existing methods for monitoring sleep physiological parameters have the following limitations:

[0003] 1. Wearable Devices: While common wearable devices such as smart bracelets and smartwatches can monitor some physiological parameters, they require direct contact with the skin, which may cause discomfort or constriction during sleep, affecting sleep quality. Furthermore, most wearable devices require regular charging, which is complex for elderly users or those requiring long-term monitoring, leading to poor user compliance.

[0004] 2. Mattress-mounted sensors: Some non-contact monitoring systems collect human vibration signals through sensors (such as piezoelectric sensors and airbag sensors) built into the mattress. However, these systems are often greatly affected by mattress material, user body shape, changes in sleeping posture, and the contact area between the body and the sensor, resulting in unstable signal quality and difficulty in guaranteeing measurement accuracy. Furthermore, they typically struggle to accurately detect subtle changes in sleeping posture and are easily interfered with by the activities of bed partners or environmental noise.

[0005] 3. Bedside non-contact devices: Bedside monitoring devices based on radar or cameras can achieve non-contact monitoring, but radar devices may have potential radiation concerns, while camera systems may raise user concerns about privacy leaks, thereby reducing users' willingness to use them.

[0006] 4. Existing Pillow-Built Sensors: Although attempts have been made to integrate sensors into pillows for sleep monitoring, most solutions still have shortcomings. For example, some systems may only monitor single or limited physiological parameters, failing to provide a comprehensive assessment of sleep status, particularly with limited ability to identify precise sleeping postures. Some solutions using piezoelectric sensors may face challenges in the precision and stability of signal analysis when dealing with complex human micro-vibration signals, and their data transmission and processing methods may be inefficient or poorly integrated. More importantly, existing non-invasive solutions still face significant technical bottlenecks in continuous, non-invasive, and accurate blood pressure monitoring during sleep. Traditional cuff blood pressure monitors can interfere with sleep, making them difficult to apply in home or long-term monitoring scenarios.

[0007] In summary, existing technologies still have gaps and room for improvement in providing a comfortable, non-invasive, comprehensive, accurate, and easy-to-use sleep physiological parameter and posture monitoring system. In particular, how to achieve comprehensive real-time monitoring of heart rate, respiratory rate, blood pressure, sleeping posture, and sleep quality through highly integrated, low-power sensors combined with efficient wireless transmission and intelligent data processing without affecting the user's sleep experience is a problem that urgently needs to be solved in the current technological field. Summary of the Invention

[0008] Purpose of the invention: The technical problem to be solved by the present invention is to provide a human body monitoring system based on a smart pillow with a three-axis digital accelerometer, which addresses the shortcomings of the existing technology.

[0009] To solve the above-mentioned technical problems, the present invention discloses a pillow with human body monitoring function, comprising: a pillow body, a sensor module, a wireless communication module and a power supply module;

[0010] The sensor module is built into the pillow body and detects micro-vibration signals generated by the human body and the pillow's usage status.

[0011] The wireless communication module is built into one side of the pillow body, electrically connected to the sensor module, and receives signals from the sensor module.

[0012] The power module is built into one side of the pillow body and provides power to the sensor module and the wireless communication module.

[0013] In this invention, preferably, the sensor module is installed in an area with the geometric center of the pillow as a reference, within ±80% of the length in the left-right direction, within ±80% of the length in the front-back direction, and within a depth less than or equal to 70% of the total thickness of the pillow.

[0014] In this invention, preferably, the pillow body is made of a flexible material that meets the elastic coefficient requirement.

[0015] In this invention, preferably, the pillow body meets the elasticity requirements as follows: the indentation hardness (ILD) of the material is 20-30, and the rebound rate is 60%-80%.

[0016] In this invention, preferably, the sensor module is a triaxial digital accelerometer.

[0017] In this invention, preferably, the power module is a removable dry cell battery.

[0018] In this invention, preferably, the wireless communication module receives signals from the sensor module and wirelessly transmits them to the outside for signal processing and early warning display.

[0019] In this invention, preferably, the micro-vibration signals generated by the human body detected by the sensor module and the usage status of the pillow are processed to obtain signals including: heart rate, respiratory rate, blood pressure, sleeping posture, and body movement.

[0020] In this invention, preferably, an alarm is triggered when the heart rate or respiratory rate exceeds a preset threshold.

[0021] In this invention, preferably, the upper surface of the pillow body has a wavy arc shape that conforms to the neck curve of the human body.

[0022] Beneficial effects:

[0023] This invention proposes a pillow with human body monitoring capabilities, overcoming the shortcomings of existing wearable devices, mattress sensors, and bedside monitoring devices in terms of comfort, signal stability, privacy protection, comprehensive functionality, and user compliance. This invention achieves comprehensive, real-time, and accurate monitoring of heart rate, respiratory rate, blood pressure, sleeping posture, and sleep quality by seamlessly integrating a high-precision triaxial digital accelerometer into the pillow body and using wireless transmission technology.

[0024] Furthermore, the system's non-contact, low-power (battery-powered), and highly integrated features greatly enhance the user experience. Simultaneously, the system's alarm function promptly alerts users or caregivers, effectively improving the intelligence level of sleep health management. This invention can be widely applied in areas such as daily home health monitoring, elderly care, and sleep disorder screening, yielding significant social and economic benefits. Attached Figure Description

[0025] Figure 1 Diagram of the pillow assembly.

[0026] Figure 2 This is a map showing the SNR distribution of the effective area of ​​the pillow (depth = 2cm).

[0027] Figure 3This is a three-dimensional SNR distribution map of the effective area of ​​the pillow.

[0028] Figure 1 In the middle: 1. Pillow body 2. Sensor module 3. Wireless communication module 4. Power supply module Detailed Implementation

[0029] Existing technologies still have gaps and room for improvement in providing a comfortable, non-invasive, comprehensive, accurate, and easy-to-use sleep physiological parameter and posture monitoring system. In particular, how to achieve comprehensive real-time monitoring of heart rate, respiratory rate, blood pressure, sleeping posture, and sleep quality through highly integrated, low-power sensors combined with efficient wireless transmission and intelligent data processing without affecting the user's sleep experience is a problem that urgently needs to be solved in the current technological field. This invention aims to overcome the shortcomings of the existing technologies and provide an innovative solution.

[0030] A pillow with human body monitoring function includes: a pillow body 1, a sensor module 2, a wireless communication module 3, and a power module 4;

[0031] The sensor module is built into the pillow body and detects micro-vibration signals generated by the human body and the pillow's usage status.

[0032] The wireless communication module is built into one side of the pillow body, electrically connected to the sensor module, and receives signals from the sensor module.

[0033] The power module is built into one side of the pillow body and provides power to the sensor module and the wireless communication module.

[0034] The sensor module is installed in an area with the geometric center of the pillow as a reference, within ±80% of the length in the left-right direction, within ±80% of the length in the front-back direction, and within a depth less than or equal to 70% of the total thickness of the pillow.

[0035] In this embodiment, specifically, the sensor module is installed in an area with a front-to-back radius of ±12cm, a left-to-right radius of ±20cm, and a depth of less than or equal to 50mm, with the geometric center of the pillow as the reference.

[0036] This embodiment verifies the optimal installation range by testing the signal quality of sensors at different installation positions on the pillow. The test plan is as follows: sensors are installed at multiple positions on the pillow (including the center, front and back ±12cm, left and right ±20cm, and different depths of 10mm, 30mm, and 50mm), and the root mean square amplitude of the signal, the noise level, and the signal-to-noise ratio (SNR) calculated therefrom are recorded.

[0037] like Figure 2 and Figure 3As shown, experimental results indicate that within a region defined by the pillow's geometric center, extending ±12cm front-to-back, ±20cm left-to-right, and with a depth of ≤50mm, the sensor exhibits a high signal-to-noise ratio (SNR), averaging approximately 14.7dB (at a 30mm depth), superior to the average 10.2dB outside this range. This difference remains consistent across different depths. For example:

[0038] At a depth of 10 mm, the average SNR in the effective area was 16.3 dB, while that in the ineffective area was 12.0 dB.

[0039] At a depth of 30 mm, the average SNR in the effective area was 14.7 dB, while that in the ineffective area was 10.2 dB.

[0040] At a depth of 50 mm, the average SNR in the effective area was 12.9 dB, while that in the ineffective area was 8.7 dB.

[0041] It is evident that installing the sensor within the aforementioned range yields significantly higher signal quality. Therefore, the optimal installation range proposed in this patent is defined as an area no more than 12cm front-to-back, no more than 20cm left-to-right, and no more than 5cm deep, with the center of the pillow as the reference point.

[0042] The pillow body is made of a flexible material that meets the elastic coefficient requirements.

[0043] The pillow body meets the elasticity requirements as follows: the indentation hardness (ILD) of the material is 20-30, and the resilience rate is 60%-80%.

[0044] The sensor module is a three-axis digital accelerometer.

[0045] The detection of micro-vibration signals generated by the human body and the pillow's usage status includes: heart rate, respiratory rate, blood pressure, sleeping posture, and body movement.

[0046] The abnormal alarm function includes triggering an alarm when the heart rate or respiratory rate exceeds a preset threshold.

[0047] The power module is a removable dry cell battery.

[0048] The wireless communication module receives signals from the sensor module and wirelessly transmits them to the outside for signal processing and early warning display.

[0049] The pillow body has a wavy arc on its upper surface that conforms to the curve of the human neck.

[0050] This example demonstrates sleep monitoring using a pillow.

[0051] Includes the following steps:

[0052] Step 1: Collect human body micro-vibration signals using a three-axis digital accelerometer built into the pillow body;

[0053] Step 2: The wireless communication module uses Star Flash wireless communication technology to transmit the digital signal from inside the pillow to the external gateway in real time;

[0054] Step 3: The received signals are preprocessed through the external gateway, physiological parameters are calculated in real time, and health assessments and abnormal alarms are performed based on the physiological parameters.

[0055] This invention provides a human body monitoring system for a smart pillow based on a three-axis digital accelerometer. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A pillow with human body monitoring function, characterized in that, include: Pillow body, sensor module, wireless communication module, and power module; The sensor module is built into the pillow body and detects micro-vibration signals generated by the human body and the pillow's usage status. The wireless communication module is built into one side of the pillow body, electrically connected to the sensor module, and receives signals from the sensor module. The power module is built into one side of the pillow body and provides power to the sensor module and the wireless communication module. The sensor module is installed within ±80% of the lateral axis length, with the geometric center of the pillow as the reference; the sensor module is installed within ±80% of the front-back axis length, with the geometric center of the pillow as the reference; the sensor module is installed within a region with a depth less than or equal to 70% of the total thickness of the pillow, with the geometric center of the pillow as the reference. The pillow body is made of a flexible material that meets the elasticity requirements. Specifically, the elasticity requirements are: the indentation hardness (ILD) of the material is 20-30, and the resilience is 60%-80%.

2. A pillow with human body monitoring function according to claim 1, characterized in that, The sensor module is a three-axis digital accelerometer.

3. A pillow with human body monitoring function according to claim 1, characterized in that, The power module is a removable dry cell battery.

4. A pillow with human body monitoring function according to claim 1, characterized in that, The wireless communication module receives signals from the sensor module and wirelessly transmits them to the outside for signal processing and early warning display.

5. A pillow with human body monitoring function according to claim 1, characterized in that, The pillow body has a wavy arc on its upper surface that conforms to the curve of the human neck.

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