CN114569118A - Sleeping posture detection system and method - Google Patents
Sleeping posture detection system and method Download PDFInfo
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Abstract
The invention discloses a sleeping posture detection system and a method. The sleeping posture detection system comprises a detection body, a pressed width detection module and a control module; the pressed width detection module is arranged on the detection body and used for detecting the pressed width of the pressed width detection module when a user lies on the detection body and outputting sleep pressed width information; the control module is electrically connected with the pressed width detection module and is used for determining sleeping posture information based on the sleeping pressed width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state. By adopting the scheme, the problems of higher cost and lower sensitivity of the existing sleeping posture detection are solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of sleeping posture detection, in particular to a sleeping posture detection system and method.
Background
Most of the sleeping posture detection schemes in the market detect and judge through the air bag pressure, but the air bag pressure detection schemes have various problems of complex structure, difficult maintenance, large judgment error and the like, and the air bag schemes also have the problems of high cost and low sensitivity, so that the invention provides a detection scheme which has simple structure, high sensitivity and accuracy and low cost, and is particularly necessary.
Disclosure of Invention
The invention provides a sleeping posture detection system and method, which aim to solve the problems of higher cost and lower sensitivity of the existing sleeping posture detection.
According to an aspect of the present invention, there is provided a sleeping posture detecting system, comprising a detecting body, a pressed width detecting module and a control module;
the pressed width detection module is arranged on the detection body and used for detecting the pressed width of the pressed width detection module when a user lies on the detection body and outputting sleep pressed width information;
the control module is electrically connected with the pressed width detection module and is used for determining sleeping posture information based on the sleeping pressed width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
In an optional embodiment of the present invention, the sleeping posture detecting system further includes a wireless communication module, and the control module is electrically connected to the wireless communication module.
In an alternative embodiment of the present invention, the pressed width detection module includes an upper electrode layer, a spacer layer, and a bottom electrode layer;
the spacing layer is positioned between the upper electrode layer and the bottom electrode layer;
the upper electrode layer comprises a plurality of conductive grids;
the spacing layer is made of an insulating material and is provided with a plurality of short-circuit channels arranged at intervals;
the bottom electrode layer is provided with a resistor array, and the resistor array comprises a plurality of resistors arranged along a first direction;
and the output end of the resistor array is electrically connected with the control module.
In an alternative embodiment of the invention, the resistor array comprises a plurality of resistors connected in series.
In an alternative embodiment of the invention, the test body comprises one of a test pad body, a test strip body and a mattress body.
According to another aspect of the present invention, there is provided a sleeping posture detection method applied to the sleeping posture detection system according to any one of the embodiments of the present invention, the sleeping posture detection method including:
acquiring sleep compression width information detected by a compression width detection module;
determining sleeping posture information based on the sleep compression width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
In an optional embodiment of the present invention, before determining the sleep posture information based on the sleep compression width information, the method further includes:
acquiring user shoulder width information;
determining a theoretical lying width based on the user shoulder width information;
determining lying datum information and side lying datum information based on the theoretical lying width;
correspondingly, the determining sleeping posture information based on the sleep compression width information comprises:
and determining sleeping posture information based on the lying reference information, the lying reference information and the sleeping compression width information, wherein the sleeping posture information comprises a lying state, a lying state and an unmanned state.
In an optional embodiment of the present invention, the sleep compression width information includes a sleep compression resistance value, the lying reference information includes lying reference resistance value information, and the lying reference information includes lying reference resistance value information;
the method for determining the sleeping posture information based on the lying datum information, the lying datum information and the sleeping compression width information comprises a lying state, a lying state and an unmanned state, and comprises the following steps:
determining whether the deviation of the sleep compression resistance value and the lying reference resistance value information is smaller than a preset lying deviation;
if yes, determining that the sleeping posture information is in a lying state;
if not, determining whether the deviation of the sleep compression resistance value and the lateral lying reference resistance value is smaller than a preset lateral lying deviation;
if yes, determining that the sleeping posture information is in a lying state.
In an optional embodiment of the present invention, the determining of the bed flat reference information based on the theoretical bed flat width includes:
determining the lying reference resistance value information based on the theoretical lying width through the following formula:
；
wherein, Δ
In order to obtain the resistance value information of the lying reference,
is the actual total resistance of the resistor array,
is the theoretical flat lying width
Equal width resolution
Is the resistance resolution.
In an optional embodiment of the present invention, after determining the theoretical lying width based on the user shoulder width information, the method further comprises:
acquiring weight information of a user and hardness information of a mattress;
correcting the theoretical lying width based on the user weight information and the mattress hardness and softness information;
correspondingly, the determining of the lying datum information and the side lying datum information based on the theoretical lying width includes:
and determining the lying datum information and the side lying datum information based on the corrected theoretical lying width.
In an optional embodiment of the present invention, the information on the hardness and softness of the mattress includes a classification level of the hardness and softness of the mattress, a maximum value of sinking of the mattress, and a classification level number of the hardness and softness of the mattress, and the correcting the theoretical lying width based on the information on the weight of the user and the information on the hardness and softness of the mattress includes:
correcting the theoretical lying width through the following formula based on the user weight information and the mattress softness and hardness information;
wherein the content of the first and second substances,
，
，
；
wherein D is the sinking value of the mattress, W is the weight information of the user,
the weight of a unit that the mattress sinks due to the weight of a human body, H is the hardness and softness correction coefficient of the mattress, n is the hardness and softness grading level of the mattress,
is the maximum value of the sinking of the mattress,
the number of grades of the hardness of the mattress is graded.
In an optional embodiment of the present invention, before determining the sleep posture information based on the sleep compression width information, the method further includes:
acquiring debugging pressed width information detected by a pressed width detection module;
acquiring debugging sleeping posture information input by a user;
associating the debugging compressed width information with the debugging sleeping posture information;
correspondingly, the determining sleeping posture information based on the sleep compression width information comprises:
determining sleep posture information based on the sleep compression width information and the associated debugging compression width information and the debugging sleep posture information.
According to the technical scheme of the embodiment of the invention, the detection body is provided with the pressed width detection module for detecting the pressed width of the pressed width detection module when the user lies on the detection body and outputting the sleep pressed width information, then the control module acquires the sleep pressed width information, so that the sleeping posture information of the user can be determined according to the sleep pressed width information, the structure is simple, the sensitivity is high, and the problems of high cost and low sensitivity of the existing sleeping posture detection are solved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of a sleeping posture detecting system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the sleeping posture detecting system in an unmanned state;
fig. 3 is a schematic structural view of the sleeping position detecting system in a lying state;
fig. 4 is a schematic structural view of the sleeping posture detecting system in a lying state;
fig. 5 is a schematic circuit diagram of a sleeping posture detecting system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pressed width detection module according to an embodiment of the present invention;
fig. 7 is a flowchart of a sleeping posture detecting method according to a second embodiment of the present invention;
fig. 8 is a flowchart of a sleeping posture detection method according to a third embodiment of the present invention;
fig. 9 is a flowchart of a sleeping posture detecting method according to a fourth embodiment of the present invention;
fig. 10 is a flowchart of a sleep posture detection method according to a fifth embodiment of the present invention.
Wherein: 1. a pressed width detection module; 11. an upper electrode layer; 111. a conductive grid; 12. a spacer layer; 121. a short-circuit channel; 13. a bottom electrode layer; 131. a resistor array; 2. a control module; 3. and a wireless communication module.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a block diagram of a sleeping posture detecting system according to an embodiment of the present invention, and as shown in fig. 1, the sleeping posture detecting system includes a detecting body, a pressed width detecting module 1 and a control module 2;
the pressed width detection module 1 is arranged on the detection body and used for detecting the pressed width of the pressed width detection module 1 when a user lies on the detection body and outputting sleep pressed width information. When the user lies on the detection body, the area of the detection body contacted with the user can be stressed by the user due to the gravity of the user. The sleep compression width information is information that can reflect the width of the region of the compression width detection module 1 that is subjected to pressure when the user lies on the detection body, and since the human body is generally in a long strip shape, the direction indicated by the width here is a direction perpendicular to the height for the user. In particular use, the pressed width detection module 1 may be located below the shoulder of the user when the user lies.
The control module 2 is electrically connected with the pressed width detection module 1 and is used for determining sleeping posture information based on the sleeping pressed width information. The sleeping posture information comprises a side lying state, a flat lying state and an unmanned state.
The control module 2 is a logic function module for performing operation control on other devices in the home lan. In a particular embodiment, the control module 2 may comprise an MCU. As shown in fig. 2, when no person is present on the detection body, since no pressure is applied to the pressure-applied width detection block 1, the width of the corresponding pressure-applied region is close to 0. As shown in fig. 3 and 4, the hatched portion indicates the range of the pressure applied to the pressed width detection module 1, when the user is in the lying state and the lying state, the pressed width detection module 1 is pressed, and the width of the area of the pressed width detection module 1 in the lying state is obviously much smaller than the width in the lying state. Meanwhile, the sleep compression width information is information capable of reflecting the width of a region subjected to pressure on the compression width detection module 1 when the user lies on the detection body, so that the sleep posture information of the user can be determined through the sleep compression width information.
Above-mentioned scheme, through set up pressurized width detection module 1 on detecting the body and detect the pressurized width of pressurized width detection module 1 and output sleep pressurized width information when the user lies on detecting the body, then control module 2 acquires this sleep pressurized width information, alright according to this sleep pressurized width information confirm user's the appearance information of sleeping, the structure is comparatively simple, and sensitivity is higher simultaneously, solves current appearance of sleeping and detects the problem that the cost is higher and sensitivity is lower.
In an alternative embodiment of the invention, the test body comprises one of a test pad body, a test strip body and a mattress body.
The detection cushion body is a main body part when the sleeping posture detection system is a monitoring cushion, and the monitoring cushion is a cushion-shaped monitoring part which can be flatly laid on a mattress during use and can be used. The detection belt body is a main body part when the sleeping posture detection system is a monitoring belt, the monitoring belt is a belt-shaped monitoring component which can be rectangular, oval and the like, and is not particularly limited, and the normal area of the monitoring belt can be smaller than the area of the mattress, so that the monitoring belt can be flatly laid below the shoulder area of a user on the mattress for detection when in use. The mattress body is the main body part when the sleeping posture detection system is a mattress, and the pressed width detection module 1 can be directly positioned in the shoulder area of a user on the mattress body. The sleeping posture detecting system can be in different forms according to different use requirements, and is not limited specifically herein.
In an alternative embodiment of the present invention, as shown in fig. 5, the sleeping posture detecting system further includes a wireless communication module 3, and the control module 2 is electrically connected to the wireless communication module 3. The wireless communication module 3 is a module capable of transmitting communication over a long distance without propagation via a conductor or a cable.
Preferably, the wireless communication module 3 includes at least one of a WIFI module and a bluetooth module. The Wi-Fi module is also called a serial port Wi-Fi module, belongs to an internet of things transmission layer, and has the function of converting a serial port or TTL level into an embedded module which accords with a Wi-Fi wireless network communication standard, and a built-in wireless network protocol IEEE802.11b.g.n protocol stack and a TCP/IP protocol stack. The Bluetooth module is a PCBA board integrating the Bluetooth function, is used for short-distance wireless communication, and is divided into a Bluetooth data module and a Bluetooth voice module according to functions. The bluetooth module is a chip basic circuit set integrated with bluetooth function, is used for wireless network communication, and can be roughly divided into three types: data transmission module, bluetooth audio frequency + two unification modules of data etc.. In particular, the bluetooth module may also include a BLE bluetooth module, and BLE (bluetooth Low energy) bluetooth Low energy technology is a short-range, Low-cost, interoperable wireless technology that utilizes many intelligent means to minimize power consumption. Through making wireless communication module 3 include at least one in WIFI module and the bluetooth module, control module 2 can be through wireless communication module 3 and smart machine wireless communication to the user can obtain the appearance information of sleeping through smart machine, and it is comparatively convenient to use.
In an alternative embodiment of the present invention, as shown in fig. 6, the pressed width detection module 1 includes an upper electrode layer 11, a spacer layer 12, and a lower electrode layer 13; the spacer layer 12 is located between the upper electrode layer 11 and the bottom electrode layer 13, wherein the upper layer is a layer close to the surface, that is, when a user lies on the detection body, pressure is firstly conducted to the upper electrode layer 11.
The upper electrode layer 11 includes a plurality of conductive grids 111, in which a plurality of lead grids are formed by criss-crossing conductive materials and have a plurality of grids.
The spacer layer 12 is made of an insulating material, and the spacer layer 12 has a plurality of short-circuit channels 121 arranged at intervals. Wherein, in a specific embodiment, the short-circuit channels 121 are arranged along a second direction, which may be a height direction of a user. Meanwhile, any two short-circuit channels 121 are not communicated with each other, so that the short-circuit channels 121 are independent from each other, and a gap is formed between any two short-circuit channels 121, the area of a supporting region in the spacing layer 12 can be increased, the detection sensitivity is ensured, meanwhile, the false detection is further reduced, and the detection accuracy is improved. The shape of the short-circuit path 121 may be configured as a rectangle, a diamond, a circle, or an ellipse, and the shape of the short-circuit path 121 is not particularly limited herein.
The bottom electrode layer 13 has a resistor array 131, and the resistor array 131 includes a plurality of resistors arranged along a first direction, i.e., a width direction of a user.
As shown in fig. 5, the output terminal of the resistor array 131 is electrically connected to the control module 2.
Wherein, when the user does not lie on the detection body, the upper electrode layer 11 and the bottom electrode layer 13 are separated by the spacer layer 12. When a user lies on the detection body, the upper electrode layer 11 will be stressed, and the stressed wire grid will short-circuit part of the resistors in the resistor array 131 through the short-circuit channels 121 of the spacer layer 12. According to the different widths of the areas subjected to the pressure, the number of the resistors short-circuited in the resistor array 131 is also different, so that the finally output resistance values are also different, and therefore, the control module 2 can determine the sleep pressure width information according to the resistance values output by the resistor array 131.
On the basis of the above embodiment, the resistor array 131 includes a plurality of resistors connected in series. The resistors connected in series can be arranged along the width direction, so that the number of the resistors to be short-circuited is different according to the different widths of the areas subjected to pressure, and the finally output resistance value is also different.
Illustratively, the hardness of the bottom electrode layer 13 is greater than the hardness of the top electrode layer 11. Therefore, the bottom electrode layer 13 can play a supporting role, and the upper electrode layer 11 can be deformed to be close to the bottom electrode layer 13 when being pressed, so that the pressure condition is fed back sensitively. The upper electrode layer 11, the spacing layer 12 and the bottom electrode layer 13 are cooperated to ensure sensitivity and accuracy of acquired data.
Example two
Fig. 7 is a flowchart of a sleep posture detection method according to a second embodiment of the present invention, where the sleep posture detection method is applied to the sleep posture detection system according to any one of the second embodiment of the present invention, and the sleep posture detection method may be located in the control module in a hardware or software manner, as shown in fig. 7, the sleep posture detection method includes:
and S110, acquiring sleep compression width information detected by the compression width detection module.
The sleep compression width information is information capable of reflecting the width of an area subjected to pressure on the compression width detection module when a user lies on the detection body, and the direction of the width is perpendicular to the height of the user because a human body is usually in a long strip shape.
S120, determining sleeping posture information based on the sleeping pressed width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
When no person is on the detection body, the width of the corresponding area subjected to pressure is close to 0 because the pressure width detection module is not subjected to pressure; when the user is in the lying state and the lying-on-side state, the pressed width detection module is pressed, and the width of the area of the pressed width detection module in the lying-on-side state is obviously much smaller than the width in the lying state. Meanwhile, the sleep compression width information is information capable of reflecting the width of a region subjected to pressure on the compression width detection module when the user lies on the detection body, so that the sleeping posture information of the user can be determined through the sleep compression width information.
According to the scheme, the sleep compression width information detected by the compression width detection module is obtained, and then the sleeping posture information is determined based on the sleep compression width information; the sleeping posture information comprises a side lying state, a flat lying state and an unmanned state, and the problems of high cost and low sensitivity of the existing sleeping posture detection are solved.
EXAMPLE III
Fig. 8 is a flowchart of a sleeping posture detection method provided in the third embodiment of the present invention, which is improved based on the second embodiment, and as shown in fig. 8, the sleeping posture detection method includes:
and S210, acquiring sleep compression width information detected by the compression width detection module.
And S220, acquiring the user shoulder width information.
The user shoulder width information refers to specific numerical information of the user shoulder width, and can be manually input by the user. For example, the user communicates with the control module through the smart device to send the own shoulder width information, and the acquiring mode at this time is wireless communication acquisition.
And S230, determining the theoretical lying width based on the user shoulder width information.
The theoretical lying width refers to the theoretical width of the pressed area on the pressed width detection module when the user lies on the detection body when the user's shoulder width is the user shoulder width information. Since the width of the user lying on the detection body mainly depends on the shoulder width, the theoretical lying width can be conveniently determined according to the shoulder width information of the user.
And S240, determining the lying datum information and the side lying datum information based on the theoretical lying width.
The value output by the pressed width detection module when the pressed width detection module detects the pressure is an electric signal reflecting the pressed width, the lying reference information is information of the value output by the pressed width detection module when the user lies completely, and the lying reference information is information of the value output by the pressed width detection module when the user lies on the side.
S250, determining sleeping posture information based on the lying datum information, the lying datum information and the sleeping pressed width information, wherein the sleeping posture information comprises a lying state, a lying state and an unmanned state.
The horizontal lying reference information refers to information of a value output by the pressed width detection module when a user lies completely, the lateral lying reference information refers to information of a value output by the pressed width detection module when the user lies laterally, and the sleep pressed width information refers to information of a value output by the pressed width detection module when the user lies laterally.
On the basis of the above embodiment, the sleep compression width information includes a sleep compression resistance value, the lying reference information includes lying reference resistance value information, and the lying reference information includes lying reference resistance value information; the method for determining the sleeping posture information based on the lying datum information, the lying datum information and the sleeping compression width information comprises a lying state, a lying state and an unmanned state, and comprises the following steps:
and determining whether the deviation of the sleep compression resistance value and the lying reference resistance value information is smaller than a preset lying deviation.
If yes, determining that the sleeping posture information is in a lying state.
As can be seen from the foregoing, the pressed width detection module includes an upper electrode layer, a spacer layer, a bottom electrode layer, and the like, where the bottom electrode layer has a resistor array, and the resistor array includes a plurality of resistors connected in series. The resistors connected in series can be arranged along the width direction, so that the number of the resistors to be short-circuited is different according to the different widths of the areas subjected to pressure, and the finally output resistance values are different, so that the control module can determine the sleep compression width information according to the resistance values output by the resistor array.
Therefore, the sleep compression resistance value refers to the resistance value output by the resistor array in the current sleeping posture of the user, the lying reference resistance value information refers to the resistance value theoretically output by the resistor array when the user is in a completely lying state, and the lying reference resistance value information refers to the resistance value theoretically output by the resistor array when the user is in a lying state. When the deviation between the sleep compression resistance value and the lying reference resistance value information is smaller than the preset lying deviation, the user is in the lying state at the moment, and therefore the sleeping posture information is determined to be in the lying state.
And if not, determining whether the deviation of the sleep compression resistance value and the lateral lying reference resistance value is smaller than a preset lateral lying deviation.
If yes, determining that the sleeping posture information is in a lying state. When the user is not lying down, if the deviation between the sleep compression resistance value and the lateral lying reference resistance value is smaller than the preset lateral lying deviation, the user is in a lateral lying state at the moment, and therefore the sleeping posture information can be determined to be in the lateral lying state.
If not, whether the sleep compression resistance value is larger than a preset unmanned resistance value or not can be determined, and if so, the sleep compression resistance value is determined to be in an unmanned state. The preset unmanned resistance value is a resistance value output by the resistor array when a preset user does not contact the pressed width detection module, and when the sleep pressed resistance value is larger than the preset unmanned resistance value, it indicates that no person exists at the moment, and the state is determined to be an unmanned state.
On the basis of the above embodiment, the determining of the lying reference information based on the theoretical lying width includes:
determining the lying reference resistance value information based on the theoretical lying width through the following formula:
wherein, Δ
In order to obtain the resistance value information of the lying reference,
is the actual total resistance of the resistor array,
is the theoretical flat lying width
Equal width resolution
Is the resistance resolution.
The resistors of the resistor array are connected in series, so that when a user does not contact the resistor array, all the resistors are in a series state, and the actual total resistance value of the resistor array sampled by the control module is at the moment
All are the same asIn the resistor array, there are some resistors that are not short-circuited no matter how the resistor array is pressed, and the resistance values of the resistors are defined as the fixed value of the theoretical resistance value
Since the number of the contacted conductive grids is different and the number of the short-circuited resistors is also different, N is defined as the number of the effective contacted conductive grids, the resolution of the resistors is Δ
Comprises the following steps:
。
meanwhile, the width resolution is:
therein is Δ
For the purpose of the width resolution,
n is defined as the number of effective contact conductive grids in width units.
Then, assuming that the bed is a completely flat hard plate, the human body does not deform after lying on the bed, and the shoulder width is
When the person lies on the sensor according to the standard sleeping posture, the theoretical lying width is also
Therefore, it can be calculated that the resistance value information of the lying reference is as follows:
。
therefore, according to the method, the information of the resistance value of the lying reference can be accurately determined, and the sleeping posture of the user can be further determined.
Example four
Fig. 9 is a flowchart of a sleep posture detection method according to a fourth embodiment of the present invention, which is improved based on the third embodiment, and as shown in fig. 9, the sleep posture detection method includes:
and S310, acquiring sleep compression width information detected by the compression width detection module.
And S320, acquiring the user shoulder width information.
And S330, determining the theoretical lying width based on the user shoulder width information.
And S340, acquiring the weight information of the user and the hardness information of the mattress.
The user weight information refers to the body weight of a user, and because the user lies on the mattress during sleeping, the hardness information of the mattress reflects the sinking degree of the mattress when the user lies on the mattress and is under pressure.
And S350, correcting the theoretical lying width based on the user weight information and the mattress softness and hardness information.
Wherein, if the bed is a completely flat hard plate plane, the human body does not deform after lying on the bed, and the shoulder width is
When the person lies on the sensor according to the standard sleeping posture, the theoretical lying width is also
However, in practical applications, the user has different weights and the mattress has different hardness, the bed has different deformation degrees, and the theoretical lying width at this time has a difference from the shoulder width.
And S360, determining the lying datum information and the side lying datum information based on the corrected theoretical lying width.
The corrected theoretical lying width is more in line with the actual situation, so that the obtained lying datum information and the side lying datum information are more accurate, the finally obtained sleeping posture information is more accurate, and the sleeping posture detection accuracy is improved.
S370, determining sleeping posture information based on the lying reference information, the lying reference information and the sleeping pressed width information, wherein the sleeping posture information comprises a lying state, a lying state and an unmanned state.
In an optional embodiment of the present invention, the information on the hardness and softness of the mattress includes a classification level of the hardness and softness of the mattress, a maximum value of sinking of the mattress, and a classification level number of the hardness and softness of the mattress, and the correcting the theoretical lying width based on the information on the weight of the user and the information on the hardness and softness of the mattress includes:
and correcting the theoretical lying width by the following formula based on the user weight information and the mattress softness and hardness information.
Wherein the content of the first and second substances,
，
，
。
wherein D is the sinking value of the mattress, W is the weight information of the user,
the weight of a unit that the mattress sinks due to the weight of a human body, H is the hardness and softness correction coefficient of the mattress, n is the hardness and softness grading level of the mattress,
is the maximum value of the sinking of the mattress,
the number of grades of the hardness of the mattress is graded.
In an actual situation, due to the difference in hardness of the mattress and the influence of the deformation of the contact position of the human body, the mattress will sink to a certain extent, that is, both sides of the sleeping posture detection system will sink to a certain extent, and the sinking value is defined as D.
The D value is calculated as follows:
. D is the sinking value of the mattress, W is the weight information of the user,
the unit weight of the mattress sinking caused by the weight of the human body, and H is the hardness and softness correction coefficient of the mattress, and theoretically, the softer the mattress, the larger the value.
The calculation method of the mattress soft hardness correction coefficient is as follows:
. H is the mattress hardness and softness correction coefficient, n is the mattress hardness and softness grading level,
is the maximum value of the sinking of the mattress,
the number of grades of the hardness of the mattress is graded. Wherein, the hardness of the mattress is the degree of softness or hardness of the mattress. The hardness and fit of the mattress are key factors influencing the comfort of the mattress. The hardness of the mattress is represented by five indexes of hardness grade (S), surface hardness (Dsurface), core layer hardness (Dcore), bottom layer hardness (Dbottom) and hysteresis loss rate (H). The hardness grade of the mattress is 1-10 grade, and is represented by S, namely S is more than or equal to 1 and less than or equal to 10. The smaller the S value is, the harder the mattress is; the larger the value, the softer the mattress. S is in [1,3), which means hard; s is in [3,6 ]]The mattress has moderate hardness; s is at (6, 10)]And indicates soft. The mattress hardness grade is the total number of hardness grades of the current mattress, and is generally 10 grades. The grading grade number of the hardness of the mattress refers to the hardness grade of the mattress currently used. The maximum value of sinking of the mattress refers to the maximum value of sinking of the mattress when the mattress is pressed, which can be measured by applying pressure to the mattress.
Then, using the principle of trigonometric function, we can consider that after the mattress sinks, the correction value of the width change is caused based on the user weight information and the mattress hardness and softness information
Comprises the following steps:
。
then, the total length of the sleeping position detection system that the user can press to sleep on his back (i.e. the corrected theoretical lying width) is:
，
for the modified theoretical lying width,
for the said before correctionThe theoretical width of the bed to lie on the bed,
a correction value to cause a width change based on the user weight information and the mattress firmness information.
Then, the finally obtained information of the lying reference resistance value is:
. Wherein, Δ
And obtaining the finally obtained lying reference resistance value information.
The intermediate value between the lying and the lying on one side can be calculated according to the lying reference resistance value information, and if the ratio limit of the shoulder thickness and the shoulder width of the human body is 2, the reference value of the lying on one side (i.e. the lying on one side reference resistance value information) can be expressed as:
. Wherein, Δ
For the information of the resistance value of the lateral standard, C is a correction coefficient, theoretically, the softer the mattress is, the smaller the value is, and the adjustment can be carried out according to the hardness of the mattress in practical application.
Therefore, the resistance information of the lying standard and the resistance information of the side lying standard of the sleeping posture detection system are calculated, wherein the resistance information of the lying standard is
The side lying reference resistance value information is
According to the change of the sleeping posture detection system and the sampling point, the determination value temporarily left from the pillow is Δ
Then, assume a sleeping postureThe value of Rs collected by the detection system is equal to
When the deviation is less than the preset deviation, the state of lying is judged, and when Rs is equal to
When the deviation is less than the preset deviation, the state is judged to be the lying state, and when Rs is less than the preset deviation>∆
When we are considering the pillow-off state. Wherein, the value collected by the sleeping posture detection system is the same as the value of the sleeping posture, because the sleeping posture detection system can have other states besides the three states
≤Rs≤∆
When we think we are currently sleeping on the side of the pillow, when Rs is<∆
When we think we are sleeping on the back.
EXAMPLE five
Fig. 10 is a flowchart of a sleep posture detection method according to a fifth embodiment of the present invention, which is improved based on the second embodiment, and as shown in fig. 10, the sleep posture detection method includes:
s410, debugging pressed width information detected by the pressed width detection module is obtained.
The information calculated according to the shoulder width, the weight and the like input by the user and the condition of the human body are different from each other, so that the user can debug and store the information in advance according to the actual condition of the user. The debugging of the pressed width information refers to information output by the pressed width detection module when a user lies on the sleeping posture detection system in a specific posture during debugging in advance.
And S420, acquiring debugging sleeping posture information input by a user.
The debugging sleeping posture information refers to the specific sleeping posture adopted by the user when the debugging pressed width information is obtained.
And S430, associating the debugging compression width information with the debugging sleeping posture information.
During debugging, a user often tries various sleeping postures, acquires debugging pressed width information under different sleeping postures for association, and facilitates subsequent judgment. Therefore, by associating the debugging pressed width information with the debugging sleeping posture information, the sleeping posture can be accurately judged when the sleeping pressed width information is detected in the follow-up process.
And S440, acquiring sleep compression width information detected by the compression width detection module.
S450, determining sleeping posture information based on the sleep compression width information and the associated debugging compression width information and debugging sleeping posture information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
The sleep state information is determined based on the sleep pressed width information, the associated debugging pressed width information and the debugging sleep state information, so that the determined sleep state information is relatively accurate and is more matched with the actual condition of the user.
In an optional embodiment of the present invention, the sleeping posture detecting method further includes: detection modes are acquired, and the detection modes comprise a learning mode and a direct measurement mode.
When the detection mode is the learning mode, the steps S410 to S430 in the above embodiment may be executed, and the steps S440 to S450 are executed when the instruction for detecting the sleeping posture is acquired subsequently.
When the detection mode is the direct measurement mode, the steps in the third embodiment or the fourth embodiment of the present invention may be executed to detect the sleeping posture.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. A sleeping posture detection system is characterized by comprising a detection body, a pressed width detection module (1) and a control module (2);
the pressed width detection module (1) is arranged on the detection body and used for detecting the pressed width of the pressed width detection module (1) when a user lies on the detection body and outputting sleep pressed width information;
the control module (2) is electrically connected with the pressed width detection module (1) and is used for determining sleeping posture information based on the sleeping pressed width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
2. The system for detecting the sleeping posture according to claim 1, further comprising a wireless communication module (3), wherein the control module (2) is electrically connected with the wireless communication module (3).
3. A sleeping posture detection system according to claim 1 or 2, characterized in that the pressed width detection module (1) comprises an upper electrode layer (11), a spacer layer (12) and a bottom electrode layer (13);
the spacer layer (12) is located between the upper electrode layer (11) and the bottom electrode layer (13);
the upper electrode layer (11) comprises a plurality of conductive grids (111);
the spacing layer (12) is made of an insulating material, and the spacing layer (12) is provided with a plurality of short-circuit channels (121) arranged at intervals;
the bottom electrode layer (13) is provided with a resistor array (131), and the resistor array (131) comprises a plurality of resistors arranged along a first direction;
the output end of the resistor array (131) is electrically connected with the control module (2).
4. A sleeping posture detection system according to claim 3, wherein the resistor array (131) comprises a plurality of resistors connected in series.
5. A sleeping posture detection system according to claim 1 or 2, wherein the detection body comprises one of a detection pad body, a detection belt body and a mattress body.
6. A sleeping posture detection method for use in the sleeping posture detection system according to any one of claims 1 to 5, the sleeping posture detection method comprising:
acquiring sleep compression width information detected by a compression width detection module;
determining sleeping posture information based on the sleep compression width information; the sleeping posture information comprises a lying state, a lying state and an unmanned state.
7. The sleep posture detection method according to claim 6, before determining the sleep posture information based on the sleep compression width information, further comprising:
acquiring user shoulder width information;
determining a theoretical lying width based on the user shoulder width information;
determining lying datum information and side lying datum information based on the theoretical lying width;
correspondingly, the determining sleeping posture information based on the sleep compression width information comprises:
and determining sleeping posture information based on the lying reference information, the lying reference information and the sleeping compression width information, wherein the sleeping posture information comprises a lying state, a lying state and an unmanned state.
8. The sleeping posture detection method according to claim 7, wherein the sleep compression width information includes a sleep compression resistance value, the lying reference information includes a lying reference resistance value information, and the lying reference information includes a lying reference resistance value information;
the method for determining the sleeping posture information based on the lying datum information, the lying datum information and the sleeping compression width information comprises a lying state, a lying state and an unmanned state, and comprises the following steps:
determining whether the deviation of the sleep compression resistance value and the lying reference resistance value information is smaller than a preset lying deviation;
if yes, determining that the sleeping posture information is in a lying state;
if not, determining whether the deviation of the sleep compression resistance value and the lateral lying reference resistance value is smaller than a preset lateral lying deviation;
if yes, determining that the sleeping posture information is in a lying state.
9. The sleeping posture detection method according to claim 8, wherein the determining of the lying reference information based on the theoretical lying width comprises:
determining the standard lying resistance value information based on the theoretical lying width through the following formula:
；
wherein, Δ
In order to obtain the resistance value information of the lying reference,
is the actual total resistance of the resistor array,
is the theoretical flat lying width
The resolution of the width
Is the resistance resolution.
10. The sleeping posture detection method according to claim 7, wherein after determining the theoretical lying width based on the user shoulder width information, further comprising:
acquiring weight information of a user and hardness information of a mattress;
correcting the theoretical lying width based on the user weight information and the mattress softness and hardness information;
correspondingly, the determining of the lying datum information and the side lying datum information based on the theoretical lying width includes:
and determining the lying datum information and the side lying datum information based on the corrected theoretical lying width.
11. The sleep posture detection method according to claim 10, wherein the mattress softness information includes a mattress softness classification level, a mattress sag maximum value, and a classification level number of mattress softness, and the correcting the theoretical lying width based on the user weight information and the mattress softness information includes:
correcting the theoretical lying width through the following formula based on the user weight information and the mattress softness and hardness information;
wherein the content of the first and second substances,
，
，
；
wherein D is the sinking value of the mattress, W is the weight information of the user,
the weight of a unit that the mattress sinks due to the weight of a human body, H is the hardness and softness correction coefficient of the mattress, n is the hardness and softness grading level of the mattress,
is the maximum value of the sinking of the mattress,
the number of grades of the hardness of the mattress is graded.
12. The sleep posture detection method according to claim 6, before determining the sleep posture information based on the sleep compression width information, further comprising:
acquiring debugging pressed width information detected by a pressed width detection module;
acquiring debugging sleeping posture information input by a user;
associating the debugging compressed width information with the debugging sleeping posture information;
correspondingly, the determining sleeping posture information based on the sleep compression width information comprises:
determining sleep posture information based on the sleep compression width information and the associated debugging compression width information and the debugging sleep posture information.
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