阅读说明：本技术 人体身体压力及睡姿检测系统 (Human body pressure and sleeping posture detection system ) 是由 刘众 王新安 卢坤涛 何春舅 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种人体身体压力及睡姿检测系统,其包括弹性缓冲层、压力测量装置和位于该弹性缓冲层下方的支撑件；其中压力测量装置包括气囊组及压力传感器组；信号放大模块；A/D转换器模块；数据处理模块；以及压力显示模块。本发明的系统能方便快速地测得人体压力分布,进而得到用户睡眠参数。(The invention discloses a human body pressure and sleeping posture detection system, which comprises an elastic buffer layer, a pressure measuring device and a support piece positioned below the elastic buffer layer; the pressure measuring device comprises an air bag group and a pressure sensor group; a signal amplification module; an A/D converter module; a data processing module; and a pressure display module. The system can conveniently and quickly measure the pressure distribution of the human body, and further obtains the sleep parameters of the user.)

1. A human body pressure and sleeping posture detection system is characterized by comprising an elastic buffer layer, a pressure measuring device and a support piece positioned below the elastic buffer layer;

wherein the pressure measurement device comprises:

the air bag group array is clamped between the elastic buffer layer and the supporting piece and is used for measuring the pressure value of each distribution point on the lower surface of the elastic buffer layer;

the signal amplification module is used for amplifying sensing signals generated by the air pressure sensor group;

the A/D converter module is used for converting the amplified sensing signal output by the signal amplification module into a digital signal;

the data processing module is used for restoring the digital signals into pressure values of all distribution points on the upper surface of the elastic buffer layer; and

the pressure display module is used for displaying the pressure value of each distribution point on the upper surface of the elastic buffer layer;

the air bag group array and the corresponding air pressure sensor group, the signal amplification module, the A/D converter module, the data processing module and the pressure display module are sequentially connected in series.

2. The detection system according to claim 1, wherein the data processing module restores the digital signal to the pressure value of each distribution point on the upper surface of the elastic buffer layer by using a one-to-one mapping relationship between the pressure of each distribution point on the lower surface of the elastic buffer layer and the pressure of each distribution point on the upper surface.

3. The detection system of claim 1, wherein the elastic buffer layer comprises at least one of a latex layer, a spring layer, a gel layer, a memory cotton layer, a cotton layer, and a cloth layer.

4. The detection system of claim 1, wherein the support comprises a plurality of independently height adjustable, self-adjusting support units; or a plurality of self-adjusting support units with independently adjustable heights.

5. The detection system according to claim 4, wherein the data processing module is connected with the self-adjusting support unit through a main control module; and the main control module receives the data transmitted by the data processing module and controls the height of the self-adjusting supporting unit according to the data.

6. The detection system of claim 5, wherein the self-adjusting support unit is an air bag; the air bag is controlled by the main control module, and the height of the air bag is adjusted through inflation and deflation.

7. The detection system of claim 6, wherein the force sensitive sensor sets comprise air pressure sensor sets and are distributed within the rear main control box.

8. The detection system of claim 1, wherein the resilient cushioning layer is a mattress; the support member is a bed.

Technical Field

The invention relates to the technical field of smart home, in particular to a human body pressure and sleeping posture detection system.

Background

Along with the improvement of the requirements of people on the living quality, people pay more attention to the sleeping quality. Comfortable bedding has a very important influence on the sleep quality, however, traditional bedding is produced in large quantities, and only a few beddings with different specifications and mattresses exist in the market. Because different users have different body types, when a user lies on the bed, the pressure and the pressure distribution of each part of the body of the user on the bed are different. A single design of bedding may not fit all potential users, and therefore a privately customized bedding has emerged.

When customizing bedding, particularly beds and mattresses, for private use, it is often necessary to measure the distribution of the body pressure of a user, i.e., the user lies on a bed frame and then measures the pressure at locations such as the user's feet, buttocks, shoulders and head, thereby individually designing the bed. However, this way of personal customization ignores an important detail that the user is sleeping on the mattress during the daily sleep. Therefore, when the user actually uses the private customized bedding, the actual use effect is finally influenced significantly due to the difference of the elastic system and hardness of the mattress.

Therefore, there is a need to provide a system for detecting body pressure and sleeping posture of a human body, which monitors the pressure of a user in real time to obtain an accurate result of human body pressure distribution, thereby providing an effective reference for controlling an intelligent mattress.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a human body pressure and sleeping posture detection system.

In order to achieve the purpose, the body pressure and sleeping posture detection system provided by the invention comprises an elastic buffer layer, a pressure measuring device and a support piece positioned below the elastic buffer layer;

wherein the pressure measuring device comprises:

the air bag array and the air pressure sensor group are clamped between the elastic buffer layer and the supporting piece and are used for measuring the pressure values of all distribution points on the lower surface of the elastic buffer layer;

the signal amplification module is used for amplifying the sensing signals generated by the air pressure sensor group;

the A/D converter module is used for converting the amplified sensing signal output by the signal amplification module into a digital signal;

the data processing module is used for restoring the digital signal into pressure values of all distribution points on the upper surface of the elastic buffer layer; and

the pressure display module is used for displaying the pressure value of each distribution point on the upper surface of the elastic buffer layer;

the air pressure sensor group, the signal amplification module, the A/D converter module, the data processing module and the pressure display module are sequentially connected in series.

In one embodiment, the data processing module restores the digital signal to the pressure value of each distribution point on the upper surface of the elastic buffer layer by using the one-to-one mapping relationship between the pressure of each distribution point on the lower surface of the elastic buffer layer and the pressure of each distribution point on the upper surface.

In one embodiment, the set of air pressure sensors includes a set of load sensors including at least one of a set of pressure strain sensors, a set of air pressure sensors, a set of hydraulic sensors, and a set of fiber optic sensors.

In one embodiment, the elastic cushioning layer comprises at least one of a latex layer, a spring layer, a gel layer, a memory foam layer, a cotton layer, and a cloth layer.

In one embodiment, the support comprises a plurality of independently height adjustable, self-adjusting support units; or a plurality of self-adjusting support units with independently adjustable heights.

In one embodiment, the data processing module is connected with the self-adjusting supporting unit through a main control module; the main control module receives the data transmitted by the data processing module and controls the height of the self-adjusting supporting unit according to the data.

In one embodiment, the self-adjusting support unit is an air bag; the air bag is controlled by the main control module, and the height of the air bag is adjusted through inflation and deflation.

In one embodiment, the air pressure sensor group is distributed on the main control board.

In one embodiment, the elastic cushioning layer is a mattress; the support member is a bed.

The invention has the beneficial effects that: the pressure of each distribution point on the lower surface of the elastic buffer layer is reduced to the pressure of each distribution point on the upper surface of the elastic buffer layer, the human body pressure distribution is measured, the human body pressure distribution can be measured more accurately, and then the sleep parameters of the user are obtained.

Drawings

The present invention will be described in more detail with reference to the following drawings and detailed description of embodiments, in which:

FIG. 1 is a schematic structural diagram of a human body pressure distribution measuring system according to an embodiment of the present invention;

FIG. 2 is a block diagram schematically showing the construction of a pressure distribution measuring apparatus according to the pressure distribution measuring system shown in FIG. 1;

FIG. 3 is a perspective view of a support member according to another embodiment of the present invention;

FIG. 4 shows a perspective view of the self-adjusting support unit according to the support of FIG. 3; and

fig. 5 is a schematic structural diagram of a human body pressure distribution measuring system according to still another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and technical effects of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

An embodiment of the present invention provides a human body pressure distribution measuring system 100, and fig. 1 is a schematic structural diagram of the human body pressure distribution measuring system 100 according to the first embodiment of the present invention. As shown in fig. 1, the body pressure distribution measuring system 100 includes an elastic buffer layer 102, a pressure measuring device (the whole structure of which is not shown in this figure, see fig. 2 in detail), and a support 106 located below the elastic buffer layer 102.

In this embodiment, the elastic buffer layer 102 is a mattress; the support 106 is a bed.

As shown in fig. 1-2, the pressure measurement device 104 includes:

an air bag array and an air pressure sensor group which are clamped between the elastic buffer layer 102 and the supporting piece 106 and are used for measuring the pressure value of each distribution point of the lower surface of the elastic buffer layer 102

A signal amplification module 1042 for amplifying the sensing signal generated by the air pressure sensor group;

an a/D converter module 1044 for converting the amplified sensing signal output by the signal amplifying module 1042 into a digital signal;

the data processing module 1046 is configured to restore the digital signal to a pressure value of each distribution point on the upper surface of the elastic buffer layer 102; and

a pressure display module 1048 for displaying pressure values of various distribution points on the upper surface of the elastic buffer layer 102;

as shown in fig. 2, the airbag array, the signal amplification module 1042, the a/D converter module 1044, the data processing module 1046, and the pressure display module 1048 are sequentially connected in series.

As shown in fig. 1, the array of cells is the same size as the resilient cushioning layer 102. However, FIG. 1 only illustrates the dimensions of force sensitive sensor group 1040. The size of the balloon array is sufficient to measure all body pressure, in other words, the force-sensitive sensor group 1040 should cover all locations on the upper surface of the elastic buffer layer 102 where body pressure is likely to be generated. Here, "covering" means the vertical downward spatial extent of the force-bearing surface of the elastic buffer layer 102.

In the human body pressure distribution measuring process a, first, a user lies on the upper surface of the elastic buffer layer 102, and the elastic buffer layer 102 is compressed to change the air pressure of the air bag array located between the elastic buffer layer 102 and the support member 106. The air pressure sensor group generates a sensing signal and transmits the sensing signal to the signal amplification module 1042; the signal amplifying module 1042 filters and amplifies the sensing signal, performs a/D conversion on the amplified sensing signal through the a/D converter module 1044, generates a digital signal recognizable by the computer, and transmits the digital signal to the data processing module 1046. To this end, the digital signal obtained by the data processing module 1046 is the pressure of each distribution point on the lower surface of the elastic buffer layer 102, that is, the superposition of the human body pressure and the pressure of the elastic buffer layer 102 itself. Therefore, the data processing module 1046 needs to restore the digital signal to the pressure value of each distribution point on the upper surface of the elastic buffer layer 102.

As an improvement to this embodiment, the data processing module 1046 uses the one-to-one mapping relationship between the pressures at the distribution points on the lower surface of the elastic buffer layer 102 and the pressures at the distribution points on the upper surface of the elastic buffer layer 102 to restore the digital signals generated by the a/D converter module 1044 to the pressure values at the distribution points on the upper surface of the elastic buffer layer 102.

Specifically, the data processing module 1046 may obtain pressure distribution of each distribution point on the lower surface of the elastic buffer layer 102, and since the pressure of each distribution point on the upper surface of the elastic buffer layer 102 and the pressure of each distribution point on the lower surface have a one-to-one mapping relationship, the mapping of the pressure of each distribution point on the upper surface to the pressure of each distribution point on the lower surface and the elastic deformation compensation of the elastic buffer layer are performed, so that the mapping matrix of the upper surface and the lower surface can be accurate. With this mapping matrix, the pressure at each distribution point on the upper surface of the elastic buffer layer 102 when the user lies on the elastic buffer layer 102, that is, the pressure generated by each part of the user when the user lies on the elastic buffer layer 102, can be obtained through the data processing module 1046.

When a user lies on the elastic buffer layer 102, the user can be regarded as a continuous mass block, the continuous mass block is discretized, and meanwhile, the pressure value of the lower surface of the elastic buffer layer 102 is discretized and simplified into a pressure distribution point corresponding to the upper surface of the elastic buffer layer 102. The pressure of each distribution point on the upper surface of the elastic buffer layer 102 and the pressure of each distribution point on the lower surface have a one-to-one mapping relationship. That is, the pressure value of the upper surface of the elastic buffer layer 102 at the corresponding position is An, the pressure value of the lower surface of the elastic buffer layer 102 is Bn, and the relationship between An and Bn is as follows: i.e. B ═ PA;

where B1 … … Bn is the pressure value of the lower surface of the elastic buffer layer 102, a1 … … An is the pressure value of the upper surface of the elastic buffer layer 102, and the pressure of each distribution point of the upper surface of the elastic buffer layer 102 and the pressure of each distribution point of the lower surface have a one-to-one mapping relationship, so the matrix P is a full rank matrix. So there is a relationship that a ═ P ^ (-1) B;

from this map, the measured pressure value of the upper surface of the elastic buffer layer 102, i.e. the actual pressure value a of the human body, can be obtained from the measured pressure value B under the elastic buffer layer 102. Since the matrices P and P ^ (-1) corresponding to different kinds of elastic buffer layers 102 are different, different elastic buffer layers 102 can be adapted by modifying the matrix P.

In one embodiment, the air pressure sensor group is a load cell group, which is a device that converts a mass signal into a measurable electrical signal output. Specifically, the weighing sensor group includes at least one of a pressure strain sensor group, an air pressure sensor group, a hydraulic pressure sensor group, and an optical fiber sensor group.

In one embodiment, the elastic cushioning layer 102 includes at least one of a latex layer, a spring layer, a gel layer, a memory foam layer, a cotton layer, and a cloth layer.

In another embodiment, the set of air pressure sensors is a vibration sensor array. Specifically, the vibration sensor array includes at least one of a piezoelectric thin film array, a piezoelectric ceramic array, and a fiber optic vibration sensor array.

In one embodiment, as shown in FIG. 5, the support member comprises a plurality of independently height adjustable, self-adjusting support units; or a plurality of self-adjusting support units 1062, which can be independently adjusted in height.

In the above-mentioned human body pressure distribution measurement process a, since the elastic buffer layer 102 is in a static state when the user lies on the surface of the elastic buffer layer 102, the measurement belongs to the static pressure value distribution measurement. In order to measure the human body pressure distribution more accurately, it is necessary to measure the dynamic pressure value distribution by sequentially inflating and deflating the respective portions of the support member 106 and measuring the distribution of the human body pressure values while inflating and deflating, which is the human body pressure distribution measuring process B, i.e., the dynamic pressure distribution measuring process. By combining the distribution of the dynamic pressure values and the distribution of the static pressure values, the distribution of the human body pressure can be obtained more accurately, so that better sleep parameters can be obtained, and more humanized elastic buffer layers 102 and supporting pieces 106, in particular more humanized beds and mattresses can be customized.

Thus, as shown in fig. 5, in the present embodiment, the support 106 is a bed including a plurality of independently height adjustable, self-adjusting support units 1062. Wherein the entire bed surface is formed of the self-adjusting support units 1062 arranged in series.

In one embodiment, after the human body pressure distribution measuring process a is finished, the human body pressure distribution measuring process B needs to be performed by itself. Accordingly, the data processing module 1046 is connected to the self-adjusting support unit 1062 through a main control module (not shown); the main control module receives the data transmitted from the data processing module 1046 and controls the self-adjusting supporting unit 1062 according to the data. The data processing module 1046 may determine whether a user lies on the elastic buffer layer 102 or not according to the received digital signal, and whether the user stably lies on the elastic buffer layer 102 or not. And after the human body pressure distribution measuring process A is finished, data containing an instruction for starting the human body pressure distribution measuring process B is generated and transmitted to the main control module.

The beneficial effects of executing the human body pressure distribution measuring process B are as follows: the sleep parameters of the user can be obtained more accurately by combining the static measurement and the dynamic measurement. In addition, since the data processing module 1046 can generate data after the process a is completed to instruct the human body pressure distribution measuring process B to be performed, the whole testing process (process a and process B) can be automatically performed without manual intervention.

The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.