CN215347988U - Intelligent mattress based on flexible sensor - Google Patents

Abstract

A smart mattress based on flexible sensors comprising: a mattress body; the flexible sensing layer is attached to the upper surface of the mattress body; the signal acquisition device is attached to one side of the mattress body or embedded in the mattress body; the electric conductor is arranged on the surface of the mattress body; the flexible sensor includes: the first silica gel layer, the metal layer and the second silica gel layer; the signal acquisition device includes: the wireless module comprises a circuit board, a power supply, a wireless module and a control module; the flexible sensor is connected with the signal acquisition device through the electric conductor. When sleeping on the mattress, the body can extrude the mattress, so that the flexible sensor is stretched and deformed, and the resistance value of the flexible sensor is correspondingly changed. Namely, the extrusion condition of the mattress by different postures of the body during sleeping is related to the deformation (resistance value) of the flexible sensor, so that the sleeping posture condition can be continuously monitored, and the monitoring continuously reflects the variation of the sleeping posture in real time through the resistance value.

Description

Intelligent mattress based on flexible sensor

Technical Field

The utility model belongs to the technical field of intelligent medical treatment, and particularly relates to an intelligent mattress based on a flexible sensor.

Background

With the continuous improvement of living standard of people, people put forward higher requirements on health. Meanwhile, the pressure of life is increased, the rhythm of life is accelerated, and people more urgently need a healthy and efficient sleeping environment. Unhealthy sleep may lead to drowsiness, soreness, dizziness.

In order to solve the problem, the intelligent medical treatment integrates a plurality of technologies for monitoring the sleep condition, such as a flexible sensor technology, and monitors the sleep condition every day, including sleep time, sleep posture and morning record. The flexible sensor on the mattress records the sleep data, uploads the sleep data to the intelligent terminal through the wireless module, and obtains the sleep state and quality evaluation by analyzing the sleep data so as to provide reference suggestions for improving sleep.

Disclosure of Invention

The utility model aims to provide an intelligent mattress based on a flexible sensor.

The utility model discloses an intelligent mattress based on a flexible sensor, which comprises: a mattress body; flexible sensing layer: the mattress is composed of a flexible sensor, elastic cloth and a protective layer, wherein the flexible sensor is arranged at a corresponding position between the two protective layers, and the flexible sensing layer is arranged on the upper surface of the mattress body and used for detecting a pressure signal on the surface of the mattress; the flexible sensor includes: the silica gel display device comprises a first silica gel layer, a metal layer arranged on the first silica gel layer and a second silica gel layer covering the metal layer, wherein the thickness of the metal layer is less than 0.1 mm; the signal acquisition device includes: the wireless module comprises a circuit board, a power supply, a wireless module and a control module, wherein the power supply, the wireless module and the control module are arranged on the circuit board, and the power supply provides electric energy for the wireless module and the control module; the flexible sensor is connected with the signal acquisition device through the electric conductor.

In an embodiment, the metal layer is provided with micro-cracks, which extend along the deformation direction.

In an embodiment, the metal layer includes three sub-metal layers, each of the three sub-metal layers is provided with microcracks, directions of the microcracks of the first sub-metal layer and the second sub-metal layer are staggered by 90 degrees, and a direction of the microcrack of the second sub-metal layer are also staggered by 90 degrees.

In one embodiment, the microcracks are hollowed-out linear structures.

In one embodiment, the flexible sensing layer is positioned on the surface of the mattress body, and the edge of the flexible sensing layer is connected with the edge of the upper surface of the mattress by a zipper.

In one embodiment, the flexible sensors are divided into two types, the sheet sensors are arranged on the upper surface of the mattress body and correspond to the buttocks and partial thigh areas of a human body during sleeping, and the strip sensors are arranged on the upper surface of the mattress and correspond to the head, back, leg and foot areas of the human body during sleeping. In one embodiment, the metal layer is electrically connected to the control module.

By adopting the intelligent mattress based on the flexible sensor, the aim of recording the sleeping posture is fulfilled by recording the resistance change caused by the stress of the flexible sensor. The freedom degree of movement of the hip part is small, only approximate position information needs to be determined, and a sheet-shaped flexible sensor with a large area is adopted for detection; the positions of the head, the back and the ankles change greatly during sleeping, but the positions of the head, the back and the ankles do not deviate from the axial direction of the spine greatly, so that the position information of the head, the back and the ankles is recorded by the strip-shaped sensors. When sleeping on the mattress, the flexible sensor is subjected to extrusion deformation (the surface of the flexible sensor shows tensile deformation), and the resistance value of the flexible sensor is also changed at the moment, namely the variation of the tensile type variable corresponding to the resistance value. The extrusion deformation of the mattress during sleeping is related to the deformation of the flexible sensor, and the resistance value continuously output by the flexible sensor due to stress can realize the continuous monitoring of the body posture during sleeping, and the monitoring continuously and real-timely reflects the change condition of the body posture during sleeping through the resistance value.

By detecting the resistance change condition of the flexible sensor, the utility model can record the daily sleep time and better plan the daily work and rest.

If the sleeping posture is not good, the intelligent mattress based on the flexible sensor can monitor the sleeping posture in real time, adjust the sleeping posture and the sleeping habit in time, discover possible hidden health hazards in advance, reduce low-quality sleep, prevent situations such as insomnia and the like, and improve the life quality.

[ description of the drawings ]

FIG. 1 is a schematic diagram of an embodiment of a flexible sensor based intelligent mattress;

FIG. 2 is an exploded schematic view of an embodiment of a flexible sensor based smart mattress;

FIG. 3 is an exploded schematic view of an embodiment flexible sensor;

FIG. 4 is a microdisplay of an embodiment microcrack;

FIG. 5 is a schematic view of a first sub-metal layer of an embodiment;

FIG. 6 is a schematic diagram of a second sub-metal layer of an embodiment;

FIG. 7 is a schematic view of a third sub-metal layer of an embodiment;

FIG. 8 is a schematic view of a signal acquisition device according to one embodiment.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

[ detailed description ] embodiments

Exemplary embodiments that embody features and advantages of the utility model are described in detail below in the specification. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

With reference to fig. 1-7, in one embodiment, a smart mattress 1 based on flexible sensors comprises: a mattress body 3 having an inner net 31; the flexible sensing layer 2 is covered with the protective cloth 21 from top to bottom; the flexible sensor takes elastic cloth 24 as a substrate, and flexible silica gel sensors 22 and 23 are attached to the surface of the conductive cloth.

In an embodiment, with reference to fig. 3, the flexible sensors 22 and 23 of the present invention have the same structure and different specifications, the flexible sensor 22 is a strip-shaped flexible sensor, the flexible sensor 23 is a sheet-shaped flexible sensor, and the structure of the flexible sensor 22 is mainly described, where the flexible sensor 22 includes: the first silica gel layer 221 is sputtered with metal by a magnetron sputtering method to form a metal layer 222, the metal layer 222 may be made of metal such as gold, silver, copper, iron or alloy, the thickness of the metal layer 222 is less than 0.1 mm, and the thickness is set to be micro-scale or nano-scale according to the requirement of the product; finally, a second silica gel layer 223 is arranged on the metal layer 222 to form the flexible sensor 22 with a three-dimensional structure; the upper and lower covering protective layers 21 of the flexible sensing layer 2 are elastic cloth and are bonded on the flexible sensor by silica gel.

Further, in connection with fig. 4, the metal layer 222 of the flexible sensor 22 is provided with micro-cracks 2224, and the micro-cracks 2224 extend along the deformation direction. Of course, in other embodiments, the micro-cracks 2221 have a hollowed-out linear structure, and may have other shapes, such as a diamond shape, a circular shape, a linear shape, an irregular shape, and the like. The core of the design of the crack 2224 is that during the tensile deformation, the void in the micro-crack 2224 provides a space for the tensile deformation, and meanwhile, during the tensile deformation, the length (transverse direction) or the thickness (longitudinal direction) of the metal layer 222 deforms, and it is known that the resistance value changes along with the deformation of the flexible sensor 22 (substantially, the deformation of the metal layer 222) as R = ρ L/S (where ρ represents the resistivity of the resistance and is determined by its own properties, L represents the length of the resistance, and S represents the cross-sectional area of the resistance), and the resistance value is related to the deformation of the flexible sensor 22, so that the monitoring of the deformation of the flexible sensor 22 corresponding to the mattress caused by the body pressure (mainly the head, the back, and the heel) is realized. The first silicone rubber layer 221 and the second silicone rubber layer 223 wrapping the metal layer 222 rapidly "pull back" the metal layer 222 to an initial state (not exceeding a limit position for stretching the flexible sensor 22, generally reaching a stretching deformation amount of 2-3 times), and the silicone rubber can also protect the metal layer 222 from being damaged, so that the service life of the flexible sensor 22 can be longer.

In other embodiments, referring to fig. 4, 5 and 6, the metal layer 222 includes a first sub-metal layer 2221, a second sub-metal layer 2222 and a third sub-metal layer 2223, each of the first sub-metal layer 2221, the second sub-metal layer 2222 and the third sub-metal layer 2223 is provided with micro cracks 2224, the directions of the micro cracks 2224 of the first sub-metal layer 2221 and the directions of the micro cracks 2224 of the second sub-metal layer 2222 are staggered at an angle, and the directions of the micro cracks 2224 of the third sub-metal layer 2223 and the directions of the micro cracks 2224 of the second sub-metal layer 2222 are also staggered at an angle. The advantage of this design is that it can be ensured that when a fracture or damage occurs in first sub-metal layer 2221, second sub-metal layer 2222, or third sub-metal layer 2223, the sub-metal layers except sub-metal layer 2223 can play a backup role, and at the same time, the third sub-metal layer directly adheres to first silica gel layer 221 and second silica gel layer 223, and can serve as a sacrificial layer to enhance the bonding effect between first silica gel layer 221 and metal layer 222 and second silica gel layer. In an embodiment, the directions of the micro-cracks 2224 of the first sub-metal layer 2221 and the micro-cracks 2224 of the second sub-metal layer 2222 are staggered by 90 degrees, and the directions of the micro-cracks 2224 of the third sub-metal layer 2223 and the micro-cracks 2224 of the second sub-metal layer 2222 are staggered by 90 degrees, so that the large-scale deformation of the flexible sensor 22 during the transverse and longitudinal tensile deformation can be effectively satisfied, and the "stability" in the multi-angle deformation process can be effectively maintained.

With the flexible sensor 22 of the present invention, when the flexible sensor 22 deforms due to stretching, the metal layer 222 is disposed in the middle of the flexible sensor, and the metal layer 222 deforms along with the stretching deformation of the external silicone, so that the resistance value of the metal layer 222 (the length, width, etc. of the metal changes) also changes. At this time, the stretching variable of the flexible sensor 22 and the variation of the resistance value form a correlation relationship, and can be used for measuring the deformation of the object to be measured, and transmitting the resistance value to the outside through the electric conductor 4.

Since the silicon gel of the flexible sensor 22 is flexible, the metal is a structural design of the micro-cracks 2224 (the micro-cracks 223 provide spaces for the tensile change of the metal layer), the thickness of the metal layer 222 is less than 0.1 mm, and can even reach a micrometer or nanometer level, and the metal itself has certain flexibility. The conductor 4 may be a conductive cloth, a conductive wire, a conductive film, or any conductor 4, and plays a role in deriving a resistance signal. Thus, the flexible sensor 22 can detect areas of deformation of the mattress, including deformation due to stretching, twisting, squeezing, etc., which ultimately manifests as stretch deformation at the surface of the flexible sensor 22.

With reference to fig. 7, in an embodiment, the signal acquisition device 5 of the present invention includes: the wireless module comprises a circuit board 51, a power supply 52, a wireless module 53 and a control module 54, wherein the power supply 52 supplies power to the wireless module 53 and the control module 54. Specifically, the power source 52 is a button cell, and the wireless module 53 is WiFi, bluetooth, 5G or infrared. The metal layer 222 is electrically connected to the control module 54 through the conductor 4.

Further, the metal layer 222 of the flexible sensor 22 is electrically connected to the control module 54, when the flexible sensor 22 deforms, a resistance value signal of the metal layer 222 changes, the resistance value signal is transmitted to the control module 54 through the electrical conductor 4 (e.g., a flexible conductive wire or a flexible conductive cloth), and the control module 54 (e.g., an ARM processor core) calculates the resistance value and transmits the resistance value to a computer background (e.g., an APP of a mobile terminal or a device such as a computer device) or other receiving devices through the wireless module 53.

In other embodiments, a display lamp or a liquid crystal digital display screen may also be disposed on the signal acquisition device 5 to directly display the sleep condition data recorded by the intelligent mattress based on the flexible sensor. Of course, a buzzer can be arranged, and the stress data can be fed back through sound or vibration.

In an embodiment, referring to fig. 2, the intelligent mattress based on the flexible sensor further includes a protective layer 21 covering the flexible sensing layer 2 and a portion of the conductive body 4, wherein the protective layer 21 is attached to the upper and lower surfaces of the flexible sensing layer to protect the flexible sensors 22 and 23. In addition, the lower surface of the protective layer 21 is connected with the upper surface of the mattress body 1. The mattress body 1 can be a spring mattress, a latex mattress or an air mattress.

In one embodiment, the flexible sensing layer 2 is integral with the protective layer 21. The signal acquisition device 5 is attached to the side face of the mattress or embedded into the mattress main body 3, and the mattress main body 3 is soft, so that the influence of pressure on the information acquisition device is reduced.

According to the intelligent mattress based on the flexible sensor, the flexible sensing layer 2 is arranged on the surface of the mattress body 3, so that the body can generate pressure on the mattress body 3 in the sleeping process, the pressure is unevenly distributed on the surface of the mattress body, and the pressure of the back, the hip and the legs of the head on the mattress body 3 is most obvious. The pressure will cause the flexible sensors 22,23 in the flexible sensing layer 2 to stretch or compress, at this time, the resistance of the flexible sensors 22,23 changes, i.e. the deformation amount corresponds to the variation of the resistance, i.e. the pressure condition of the body posture to the mattress during sleeping corresponds to the variation of the resistance of the flexible sensors 22,23, and the flexible sensors 22,23 output continuous resistance values due to the stress, thus realizing continuous monitoring of the pressure (force interactivity), and these monitoring directly reflect the form variation of the stress through the "resistance value". The sensor 22 mainly monitors the state of the more flexible parts of the body during sleep, such as the head, shoulders, waist and legs, and the sensor 23 mainly monitors the less movable parts of the body, such as the buttocks. The body posture condition in the sleeping process can be calculated by analyzing the output conditions of the signals of the flexible sensors at different parts.

If the postures are not correct in the sleeping process, the intelligent mattress based on the flexible sensor can monitor the stress distribution of the body in real time, can discover unreasonable stress distribution and sleeping habits of the body in advance, reminds a user to correct in time, prevents diseases, improves sleeping quality and improves life quality.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An intelligent mattress based on flexible sensors, characterized by comprising: a mattress body; the flexible sensing layer is arranged on the upper surface of the mattress body, contains flexible sensors with two specifications, and is divided into a long strip shape and a sheet shape, the flexible sensors are uniformly arranged on the upper surface of the mattress body, the sheet-shaped flexible sensors are distributed corresponding to the buttocks and partial thigh areas, the strip-shaped flexible sensors are distributed on the upper surface of the mattress body corresponding to the head, the back, the legs and the ankles, the flexible sensors are attached to the elastic cloth, and the upper layer and the lower layer are protected by the protective layers; the signal acquisition device can be fixed on the side surface of the mattress body or embedded into the mattress body; the electric conductor is electrically connected with the signal acquisition device and the flexible sensor and is arranged on the surface of the mattress body; the flexible sensor includes: the silica gel display device comprises a first silica gel layer, a metal layer arranged on the first silica gel layer and a second silica gel layer covering the metal layer, wherein the thickness of the metal layer is less than 0.1 mm; the signal acquisition device includes: the wireless module comprises a circuit board, a power supply, a wireless module and a control module, wherein the power supply is arranged on the circuit board and provides electric energy for the wireless module and the control module; the flexible sensor is connected with the signal acquisition device through the electric conductor.

2. Intelligent mattress based on flexible sensors, according to claim 1, characterized in that the metal layer is provided with micro-cracks, which extend along the deformation direction.

3. The intelligent mattress based on the flexible sensor according to claim 1, wherein the metal layer comprises a first sub-metal layer, a second sub-metal layer and a third sub-metal layer, all of the first sub-metal layer, the second sub-metal layer and the third sub-metal layer are provided with micro cracks, the directions of the micro cracks of the first sub-metal layer and the directions of the micro cracks of the second sub-metal layer are staggered at an angle, and the directions of the micro cracks of the third sub-metal layer and the directions of the micro cracks of the second sub-metal layer are also staggered at an angle.

4. The intelligent mattress based on flexible sensors, according to claim 3, characterized in that the directions of the micro cracks of the first sub-metal layer and the second sub-metal layer are staggered by 90 degrees, and the directions of the micro cracks of the third sub-metal layer and the second sub-metal layer are also staggered by 90 degrees.

5. The intelligent mattress based on the flexible sensor as claimed in any one of claims 2-4, wherein the micro-cracks are hollowed-out linear structures.

6. The intelligent mattress based on the flexible sensor as claimed in claim 1, further comprising an upper protective layer covering and attached to the flexible sensor and a part of the conductor, and a lower protective layer covering the lower side of the flexible sensor and disposed on the upper surface of the mattress body.

7. The intelligent mattress based on the flexible sensor as claimed in claim 1, wherein the flexible sensor is integrally formed with the mattress body or can be connected by a zipper or buttons.

8. The intelligent mattress based on the flexible sensor as claimed in claim 1, wherein the signal acquisition device can be attached to the side surface of the mattress body or embedded in the mattress body.

9. The intelligent mattress based on the flexible sensors as claimed in claim 1, wherein the flexible sensors are uniformly placed on the upper surface of the mattress body, wherein the strip sensors are distributed on the mattress corresponding to head, neck, back, legs and feet areas, and the sheet sensors correspond to buttocks areas.

10. The smart mattress based on flexible sensors as recited in claim 1, wherein the metal layer is electrically connected with the control module.

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