A mattress for monitoring sleep patterns in the elderly

Abstract

This utility model discloses a sleep monitoring mattress for the elderly, comprising a surface layer, a monitoring layer, and a support layer arranged sequentially from top to bottom. Multiple flexible circuit boards are evenly distributed within the monitoring layer, and multiple pressure sensors are arrayed on both sides of the flexible circuit boards, with the pressure sensors electrically connected to the flexible circuit boards. A circuit box is located at the bottom of the monitoring layer, containing a control circuit board electrically connected to the flexible circuit boards. The control circuit board includes a microcontroller and a power module. A buzzer cavity is also located on one side of the circuit box, housing a buzzer connected to the control circuit board. This utility model enables the monitoring of the sleep state of the elderly and provides effective early warnings when abnormalities occur, thereby ensuring the sleep safety and comfort of the elderly.

Description

Technical Field

[0001] This utility model relates to a mattress, and more particularly to a mattress for monitoring the sleep status of the elderly, belonging to the field of mattress technology. Background Technology

[0002] With the accelerating aging of the population, the safety and health monitoring of elderly people living at home has become a key focus of social concern. Sleep status is an important indicator of the health status of the elderly, and changes in their sleep patterns, such as the frequency of turning over, the range of body movements, and prolonged periods of lying still, may indicate a risk of falls. Therefore, real-time monitoring and early warning of abnormal sleep patterns in the elderly are of great significance.

[0003] Currently, sleep monitoring for the elderly mainly relies on traditional mattresses combined with independent monitoring instruments (such as pressure pads under the mattress and infrared sensors). However, existing equipment may have the following shortcomings: for example, the sensor layout is not reasonable enough, and most of them are single-point or local monitoring, which may make it difficult to fully capture pressure changes in different parts of the body, thus causing the monitoring instrument to make incorrect judgments; in addition, the existing sensor materials are relatively rigid, which can easily affect sleep comfort when in direct contact with the body, and are especially unsuitable for the sensitive constitution of the elderly. Utility Model Content

[0004] The purpose of this invention is to provide a mattress for monitoring the sleep state of the elderly. This invention can monitor the sleep state of the elderly and provide effective early warning when abnormalities occur, thereby ensuring the sleep safety and comfort of the elderly.

[0005] The technical solution of this utility model is as follows: A mattress for monitoring sleep status in the elderly includes a surface layer, a monitoring layer, and a support layer arranged sequentially from top to bottom; multiple flexible circuit boards are evenly laid in the monitoring layer, and multiple pressure sensors are arrayed on both sides of the flexible circuit boards, with the pressure sensors electrically connected to the flexible circuit boards; a circuit box is provided at the bottom of the monitoring layer, and a control circuit board electrically connected to the flexible circuit boards is provided in the circuit box, with a microcontroller and a power module on the control circuit board; a buzzer cavity is also provided on one side of the circuit box, and a buzzer connected to the control circuit board is provided in the buzzer cavity.

[0006] In the aforementioned mattress for monitoring sleep status in the elderly, the circuit box has through holes on both sides for routing the flexible circuit board and the buzzer.

[0007] In the aforementioned elderly sleep monitoring mattress, the front side of the circuit box is provided with an opening groove, and multiple fixing parts are provided on both sides of the opening groove. The opening groove is detachably fixed with a side plate, and the side of the opening groove is fixed to the circuit box by screws and fixing parts.

[0008] In the aforementioned mattress for monitoring sleep patterns in the elderly, the surface layer is made of cotton fabric, and the inside of the cotton fabric is composited with an antibacterial layer, which is a non-woven fabric material containing silver ions.

[0009] In the aforementioned mattress for monitoring sleep status in the elderly, the support layer includes, from top to bottom, an elastic cushioning layer, a rigid support layer, and an anti-slip bottom layer; the elastic cushioning layer is made of 3D breathable mesh fabric, the rigid support layer is made of high-density polyurethane foam, and the surface of the anti-slip bottom layer is provided with diamond-shaped anti-slip texture, and the edge of the anti-slip bottom layer extends outward by 2-3cm and is folded upward and sewn to the edge of the surface layer for fixation.

[0010] In the aforementioned mattress for monitoring sleep patterns in the elderly, the pressure sensor is a flexible thin-film pressure sensor. The sensing area of ​​a single pressure sensor is 2cm×2cm, the spacing between adjacent pressure sensors is 5-8cm, and the sensing surfaces of all pressure sensors face the surface. The top of the pressure sensor is covered with a 0.5mm silicone cushioning pad, which is bonded to the flexible circuit board with high-temperature resistant adhesive.

[0011] In the aforementioned mattress for monitoring sleep patterns in the elderly, an insulating layer is provided between the surface layer and the monitoring layer. The insulating layer is a polyimide film with a thickness of 0.3-0.5 mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention features a monitoring layer with multiple flexible circuit boards evenly distributed within it. Multiple pressure sensors are arrayed on both sides, comprehensively capturing pressure changes in different parts of the body. This effectively avoids misjudgments caused by single-point or localized monitoring and accurately identifies sleep states such as turning frequency, body movement amplitude, and prolonged periods of stillness. The control circuit board processes sensor data through a microcontroller. When an abnormal state is detected, it triggers an alarm within the buzzer cavity, promptly ensuring the sleep safety of the elderly. Furthermore, the pressure sensors in this invention are made of flexible thin-film material, covered with a silicone cushioning pad, and have a cotton fabric surface, solving the discomfort of traditional rigid sensors directly contacting the body and ensuring a better sleep experience for the elderly. Attached Figure Description

[0013] Figure 1 This is an exploded view of the structure of this utility model; Figure 2 This is a schematic diagram of the monitoring layer of this utility model; Figure 3 This is a side sectional view of the internal structure of this utility model; Figure 4 As shown Figure 1 The enlarged view shown.

[0014] The labels in the attached diagram are as follows: 1. Surface layer; 2. Monitoring layer; 3. Support layer; 4. Flexible circuit board; 5. Pressure sensor; 6. Circuit box; 7. Control circuit board; 8. Buzzer cavity; 9. Buzzer; 10. Through hole; 11. Opening slot; 12. Fixing part; 13. Side plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0016] Example: A mattress for monitoring sleep patterns in the elderly, configured as follows Figure 1-3 As shown, the structure includes, from top to bottom, a surface layer 1, a monitoring layer 2, and a support layer 3, all bonded together with a high-temperature resistant adhesive. Surface layer 1 is made of memory foam fabric, approximately 1.2mm thick, with a soft and skin-friendly feel, suitable for the sensitive skin of the elderly. An antibacterial layer is laminated to the inside of the cotton fabric. This antibacterial layer is a spunbond nonwoven fabric (0.5mm thick) containing 0.2% silver ions. The silver ions inhibit the growth of Escherichia coli, Staphylococcus aureus, and other bacteria through slow-release action, achieving an antibacterial rate of ≥99%. The nonwoven fabric also provides good breathability, preventing stuffiness. Support layer 3 includes, from top to bottom, an elastic cushioning layer, a rigid support layer, and an anti-slip bottom layer. The elastic cushioning layer uses 3D breathable mesh fabric (material PET, weight 200g / m²). 2 The outermost layer is 2cm thick with a 3mm x 3mm mesh, offering 30% compression resilience to distribute body pressure while allowing air circulation. The rigid support layer uses high-density polyurethane foam (40D), 8cm thick, with a compression hardness of 2.5kPa, providing basic support and preventing excessive mattress sagging. The anti-slip bottom layer uses PVC anti-slip cloth (0.3mm thick) with a diamond-shaped anti-slip pattern (0.2mm depth, 60° angle), achieving a friction coefficient ≥0.8 (in contact with the sheet). The edge of the anti-slip bottom layer extends outwards by 2.5cm, folds upwards, and is sewn to the edge of the outermost layer with cotton thread (3mm stitch length). The fold-up height is 1-2cm to prevent the mattress from shifting during use. Figure 4 As shown Figure 1The magnified view shows 12 flexible circuit boards 4 evenly distributed within the monitoring layer 2. These boards utilize a 3-layer polyimide flexible substrate (0.1mm thick) and are evenly arranged in 12 strips (25cm spacing) along the length of the mattress, each strip 8cm wide. They are fixed to the elastic cushioning layer of the support layer 3 using high-temperature resistant adhesive (80℃ resistant). The flexible circuit boards 4 can bend with the mattress, with a bending radius ≥5mm to prevent breakage. Multiple pressure sensors 5 are arrayed on both sides of the flexible circuit boards 4, and are electrically connected to them. The pressure sensors 5 are PVDF flexible film pressure sensors (model SM340), each 2cm × 2cm in size, with a sensitivity of 0.1N~100N (suitable for human body weight pressure). Adjacent pressure sensors 5 are spaced 6cm apart (symmetrically arrayed along both sides of the flexible circuit boards 4, one sensor every 10cm on each side), and all pressure sensors 5 have their sensing surfaces facing upwards (towards the surface layer 1). The pressure sensor 5 is covered with a 0.5mm silicone cushioning pad (Shore hardness 30A) and bonded to the flexible circuit board 4 with high-temperature resistant adhesive, reducing direct rigid contact between the pressure sensor 5 and the human body and improving comfort. The lower part of the monitoring layer 2 houses a circuit box 6, which contains a control circuit board 7 electrically connected to the flexible circuit board 4. The control circuit board 7 uses a 4-layer FR4 substrate (7cm×5cm), and is equipped with an STM32F103 microcontroller (72MHz main frequency, processing speed sufficient for real-time data acquisition), a 5V / 1A power module (supports DC5V adapter connected to AC mains via a power cord passing through the side of the monitoring layer; a lithium battery version can also be used in rooms without power supply, such as a safe and mature 18650 lithium battery, with a battery life of ≥24 hours), and a Bluetooth module (BLE 5.0, which can synchronize data to a mobile APP). The control circuit board 7 is fixed in the circuit box 6 by copper pillars and electrically connected to the flexible circuit board 4 via a terminal block (PH2.0 interface). A buzzer cavity 8 is also provided on one side of the circuit box 6, and a buzzer 9 connected to the control circuit board 7 is located inside the buzzer cavity 8. Elderly people may experience slight body movements during sleep; the sensitivity of the pressure sensor 5 can be adjusted via the STM32F103 microcontroller to reduce false alarms. Through holes 10 are provided on both sides of the circuit box 6 for wiring to the flexible circuit board 4 and the buzzer 9. An opening slot 11 is provided on the front of the circuit box 6, with multiple fixing parts 12 on both sides of the opening slot 11. A side plate 13 is detachably fixed to the opening slot 11, and the side of the opening slot is fixed to the circuit box 6 by screws and fixing parts 12. The circuit box 6 is made of ABS plastic (10cm × 8cm × 3cm) and is fixed to the lower edge of the monitoring layer 2 (lower right corner of the mattress).The circuit box 6 has two 5mm diameter through holes 10 on each side for the wires (AWG28 tinned copper wire) of the flexible circuit board 4 to pass through. A 5cm × 7cm opening slot 11 is provided on the front side, with two M3 threaded fixing parts 12 on each side. The opening slot 11 is sealed by a side plate 13 (ABS material, 2mm thick). The side plate 13 and the fixing parts 12 are connected by M3 × 8mm self-tapping screws for easy maintenance. An insulating layer is provided between the surface layer 1 and the monitoring layer 2. The insulating layer is a 0.4mm thick polyimide film (temperature resistant -20℃~150℃), bonded to the surface layer 1 with food-grade silicone adhesive. The polyimide film has an insulation resistance ≥10 ohms. 14 With a breakdown voltage of ≥20kV / mm, it can effectively isolate the circuit of monitoring layer 2 from the human body, thus improving electrical safety.

[0017] Work process When the elderly sleep monitoring mattress is working, the pressure generated by the elderly lying down is transmitted through the surface layer 1 and the insulation layer to the monitoring layer 2. The flexible thin-film pressure sensors 5 on both sides of the flexible circuit board 4 in the monitoring layer 2 (with the sensing surface facing the surface layer 1) sense the pressure changes. The sensing signal is transmitted through the flexible circuit board 4 to the control circuit board 7 in the circuit box 6. The microcontroller on the control circuit board 7 processes the signal in real time and analyzes sleep states such as turning frequency, body movement amplitude, and prolonged lying stillness. The power module supplies power to the entire system. When an abnormal state is detected, the microcontroller triggers the buzzer 9 in the buzzer cavity 8 to sound an alarm. The elastic buffer layer, rigid support layer, and anti-slip bottom layer of the support layer 3 provide comfortable support and anti-slip fixation while ensuring monitoring stability, ensuring the overall monitoring and usage effect.

[0018] In summary, this invention can monitor the sleep status of the elderly and provide effective early warnings when abnormalities occur, thereby ensuring the sleep safety and comfort of the elderly.

Claims

1. A mattress for monitoring sleep patterns in the elderly, characterized in that: The system includes a surface layer (1), a monitoring layer (2), and a support layer (3) arranged sequentially from top to bottom. Multiple flexible circuit boards (4) are evenly laid in the monitoring layer (2), and multiple pressure sensors (5) are arrayed on both sides of the flexible circuit boards (4). The pressure sensors (5) are electrically connected to the flexible circuit boards (4). A circuit box (6) is provided at the bottom of the monitoring layer (2). A control circuit board (7) electrically connected to the flexible circuit boards (4) is provided in the circuit box (6). A microcontroller and a power module are provided on the control circuit board (7). A buzzer cavity (8) is also provided on one side of the circuit box (6). A buzzer (9) connected to the control circuit board (7) is provided in the buzzer cavity (8).

2. The geriatric sleep state monitoring mattress of claim 1, wherein: The circuit box (6) has through holes (10) on both sides for routing to the flexible circuit board (4) and the buzzer (9).

3. The geriatric sleep state monitoring mattress of claim 1, wherein: The circuit box (6) has an opening slot (11) on the front side, and multiple fixing parts (12) are provided on both sides of the opening slot (11). The opening slot (11) is detachably fixed with a side plate (13), and the side of the opening slot is fixed to the circuit box (6) by screws and fixing parts (12).

4. The geriatric sleep state monitoring mattress of claim 1, wherein: The outer layer (1) is made of cotton fabric, and an antibacterial layer is laminated inside the cotton fabric. The antibacterial layer is a non-woven material containing silver ions.

5. The geriatric sleep state monitoring mattress of claim 1, wherein: The support layer (3) includes, from top to bottom, an elastic buffer layer, a rigid support layer and an anti-slip bottom layer; the elastic buffer layer is made of 3D breathable mesh fabric, the rigid support layer is made of high-density polyurethane foam, the surface of the anti-slip bottom layer is provided with diamond anti-slip texture, and the edge of the anti-slip bottom layer extends outward by 2-3cm and is folded upward and sewn to the edge of the surface layer (1) for fixation.

6. The geriatric sleep state monitoring mattress of claim 1, wherein: The pressure sensor (5) is a flexible thin film pressure sensor (5). The sensing area of ​​a single pressure sensor (5) is 2cm×2cm. The spacing between adjacent pressure sensors (5) is 5-8cm. The sensing surfaces of all pressure sensors (5) face the surface layer (1). The top of the pressure sensor (5) is covered with a 0.5mm silicone buffer pad. The silicone buffer pad is bonded to the flexible circuit board (4) with high-temperature resistant adhesive.

7. The geriatric sleep state monitoring mattress of claim 1, wherein: An insulating layer is provided between the surface layer (1) and the monitoring layer (2), and the insulating layer is a polyimide film with a thickness of 0.3-0.5 mm.

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