CN114557571B - Intelligent mattress and physiological information detection method - Google Patents
Intelligent mattress and physiological information detection method Download PDFInfo
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- CN114557571B CN114557571B CN202210291165.3A CN202210291165A CN114557571B CN 114557571 B CN114557571 B CN 114557571B CN 202210291165 A CN202210291165 A CN 202210291165A CN 114557571 B CN114557571 B CN 114557571B
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- 238000001514 detection method Methods 0.000 title claims abstract description 83
- 239000012530 fluid Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000007958 sleep Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
- A47C31/123—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
Abstract
The invention discloses an intelligent mattress and a physiological information detection method. The intelligent mattress comprises a mattress body, wherein the mattress body is provided with a supporting device, a comparison unit, a control module and a differential pressure detection piece; the support device comprises a first support unit, wherein the first support unit is internally provided with fluid; the control unit has fluid inside and is the same as the initial pressure of the first support unit; the differential pressure detection piece comprises a first detection end and a second detection end, the first detection end is connected with the contrast unit, the second detection end is connected with the first supporting unit, and the differential pressure detection piece is used for detecting the differential pressure of the contrast unit and the first supporting unit; the control module is electrically connected with the differential pressure detection piece and is used for acquiring differential pressure information detected by the differential pressure detection piece. Through adopting above-mentioned scheme, the effect that the comfort level is higher and the detection precision is high when having realized detecting.
Description
Technical Field
The embodiment of the invention relates to the technical field of mattresses, in particular to an intelligent mattress and a physiological information detection method.
Background
At present, the intelligent mattress aims at sleeping habits of a human body, can adjust hardness, and has the function of measuring physiological signs of the human body. However, the existing intelligent mattresses are poor in comfort level in detection, and meanwhile weak physiological signals are difficult to detect.
Disclosure of Invention
The invention provides an intelligent mattress and a physiological information detection method, which are used for realizing high comfort level and high detection precision during detection.
According to one aspect of the invention, there is provided an intelligent mattress, comprising a mattress body provided with a support device, a contrast unit, a control module and a differential pressure detecting member;
the support device comprises a first support unit, wherein the first support unit is internally provided with fluid;
the control unit has fluid inside and is the same as the initial pressure of the first support unit;
the differential pressure detection piece comprises a first detection end and a second detection end, the first detection end is connected with the contrast unit, the second detection end is connected with the first supporting unit, and the differential pressure detection piece is used for detecting the differential pressure of the contrast unit and the first supporting unit;
the control module is electrically connected with the differential pressure detection piece and is used for acquiring differential pressure information detected by the differential pressure detection piece.
In an alternative embodiment of the invention, a back area is provided on the mattress body, the first support unit being provided on the back area.
In an alternative embodiment of the invention, the intelligent mattress further comprises a first pressure sensing element and a pressure control module;
the first pressure detecting member is configured to detect an initial pressure of the first supporting unit;
the control module (1) is used for controlling the initial pressure of the control unit and the initial pressure of the first supporting unit to be the same;
the control module is electrically connected with the pressure control module and the first pressure detection piece, and is used for acquiring pressure information detected by the first pressure detection piece and controlling the pressure control module.
In an alternative embodiment of the invention, the control module comprises a power unit and a first switch unit;
the control unit is communicated with the first supporting unit through a pipeline, and the first switch unit is used for controlling the on-off of the pipeline between the control unit and the first supporting unit;
the power unit is used for providing power for transporting fluid to the control unit and the first supporting unit;
the control module is electrically connected with the first switch unit and used for controlling the working state of the first switch unit.
In an alternative embodiment of the invention, the power unit comprises a pump body and a fluid supply line, the pump body comprising a fluid outlet, the fluid outlet of the pump body being in communication with the control unit via the fluid supply line.
In an alternative embodiment of the present invention, the pressure control module further includes a second switch unit, where the second switch unit is disposed on the fluid supply pipeline and is used to control on-off of the fluid supply pipeline;
the supporting device further comprises a plurality of second supporting units, the power unit further comprises a plurality of fluid supply branches and a third switch unit, and the fluid outlet of the pump body is connected with the plurality of fluid supply branches;
the fluid supply branches are connected with the second supporting units in a one-to-one correspondence manner;
the third switch units are connected with the fluid supply branches in a one-to-one correspondence manner and are used for controlling the on-off of the fluid supply branches in a one-to-one correspondence manner;
the control module is electrically connected with the second switch unit and the third switch unit and is used for controlling the working states of the second switch unit and the third switch unit.
In an alternative embodiment of the present invention, at least one of the first, second and third switching units comprises a solenoid valve;
and/or, the intelligent mattress further comprises a plurality of second pressure detection pieces, wherein the second pressure detection pieces are used for detecting pressure information of the second supporting units.
In an alternative embodiment of the invention, the differential pressure detecting member comprises a differential pressure sensor;
and/or the first pressure detecting member comprises a pressure sensor.
According to another aspect of the present invention, there is provided a physiological information detection method for an intelligent mattress according to any of the embodiments of the present invention, the method including:
acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time;
determining pressure variation information based on the differential pressure information and initial pressure information of the first support unit;
physiological information is determined based on the pressure fluctuation information.
In an optional embodiment of the invention, before the acquiring, in real time, the differential pressure information of the first supporting unit and the control unit detected by the differential pressure detecting element, the method further includes:
the first switch unit and the second switch unit are controlled to be turned on so that the pump body is communicated with the contrast unit and the first supporting unit;
controlling the pump body to be opened so as to enable the pump body to pour fluid into the control unit and the first supporting unit;
acquiring first pressure information of a first supporting unit detected by a first pressure detecting piece in real time;
controlling the second switching unit and the pump body to close to stop pouring fluid;
acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time;
determining whether the difference value between the differential pressure information and 0 is smaller than a preset difference value;
if yes, determining the first pressure information at the moment as initial pressure information, controlling the first switch unit to be closed to enter a detection mode, and simultaneously executing the step of acquiring the pressure difference information of the first support unit and the contrast unit detected by the pressure difference detection piece in real time in the detection mode.
According to the technical scheme, the comparison unit which is equal to the initial pressure of the first supporting unit is arranged, when the pressure on the first supporting unit changes, the pressure difference detection piece can measure the pressure difference of the pressure difference detection piece relative to the comparison unit, so that the pressure change of the first supporting unit can be reflected, and the pressure value before and after the pressure change of the first supporting unit is not required to be detected through the pressure sensor. Therefore, the effect of measuring the pressure variation with high precision can be realized. Since the physiological information of the human body is reflected on the pressure variation of the first supporting unit, for example, when the user breathes, the pressure value received on the first supporting unit has a weak change, the physiological information of the user can be known according to the pressure variation by measuring the pressure variation of the first supporting unit. By making the measurement accuracy of the pressure change amount higher, the physiological information of the user can be measured with high accuracy. Because only the differential pressure detection piece is needed to measure the differential pressure of the first supporting unit and the contrast unit, the differential pressure detection piece is not needed to be arranged at the position which can be contacted by the user, and the first supporting unit is only required to play a supporting role on the user, so that the comfort level of the user during use is improved, and the effects of higher comfort level and high detection precision during detection are realized.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an intelligent mattress according to a first embodiment of the present invention;
FIG. 2 is a block diagram showing the connection between a control module and a differential pressure detecting member according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a mattress body according to a first embodiment of the present invention;
FIG. 4 is a block diagram illustrating connection between another control module and another module according to a first embodiment of the present invention;
FIG. 5 is a schematic view of another intelligent mattress according to an embodiment of the present invention;
FIG. 6 is a flowchart of a physiological information detection method according to a second embodiment of the present invention;
fig. 7 is a flowchart of a physiological information detection method according to a third embodiment of the present invention.
Wherein: 1. a pressure control module; 11. a power unit; 111. a pump body; 112. a fluid supply line; 113. a fluid supply branch; 12. a first switching unit; 13. a second switching unit; 14. a third switching unit; 2. a first pressure detecting member; 3. a differential pressure detecting member; 4. a comparison unit; 5. a second pressure detecting member; 6. a control module; 7. a mattress body; 71. a back region; 8. a support device; 81. a first supporting unit; 82. and a second supporting unit.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise 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 1
Fig. 1 is a schematic structural diagram of an intelligent mattress according to an embodiment of the present invention, and fig. 2 is a connection block diagram of a control module and a differential pressure detecting member according to the first embodiment of the present invention, where the embodiment is applicable to a situation of measuring physiological information of a user when the user sleeps, as shown in fig. 1 and fig. 2, the intelligent mattress includes a mattress body 7 (not shown in fig. 1), and a supporting device 8, a comparison unit 4, a control module 6 and a differential pressure detecting member 3 are disposed on the mattress body 7.
The support device 8 comprises a first support unit 81, the first support unit 81 having a fluid inside. The first supporting unit 81 is a portion for supporting the user when the user lies on the mattress body 7, and the inside of the first supporting unit 81 may be filled with a fluid including a flowable substance such as a gas or a liquid. For example, when the smart mattress is an airbag bed, the first support unit 81 may be an airbag. When the intelligent mattress is a water bed, the first support unit 81 may be a unit filled with water.
The contrast unit 4 has fluid inside and the same initial pressure as the first support unit 81. The control unit 4 is a unit in which a fluid can be filled. The contrast unit 4 may have been adjusted to an initial pressure consistent with the first support unit 81 at the time of initial tooling production. For example, the contrast unit 4 may be provided as a component having the same volume as the first support unit 81 and the same amount of fluid stored therein. In another specific embodiment, the contrast unit 4 may also be a component having a different structure from the first support unit 81, and the real-time measurement is performed by an external pressure sensor to control the initial pressures of the contrast unit 4 and the first support unit 81 to be the same.
The differential pressure detecting member 3 includes a first detecting end connected with the contrast unit 4 and a second detecting end connected with the first supporting unit 81, and the differential pressure detecting member 3 is configured to detect a differential pressure between the contrast unit 4 and the first supporting unit 81. The differential pressure detecting member 3 is a member capable of detecting a differential pressure of two containers, and in a specific embodiment, the differential pressure detecting member 3 includes a differential pressure sensor, which is a sensor for measuring a differential pressure between two pressures, and the differential pressure of the contrast unit 4 and the first supporting unit 81 can be conveniently measured by including the differential pressure detecting member 3 with the differential pressure sensor.
The control module 6 is electrically connected with the differential pressure detecting element 3 and is used for acquiring differential pressure information detected by the differential pressure detecting element 3. The control module 6 is a "decision-making mechanism" for issuing commands, i.e. for coordinating and commanding the operation of the whole computer system. In a specific embodiment, the control module 6 includes a controller. The controller may specifically include a microprocessor, such as a single-chip microcomputer, and the like. Preferably, the control module 6 may comprise a control board and a control box, while both the control board and the control unit 4 are placed within the control box.
In the prior art, in order to enable the intelligent mattress to have different supporting performances for different users, a pressure sensor is usually arranged on the intelligent mattress, and the pressure of the supporting device 8 on the intelligent mattress is detected by the pressure sensor, however, when the pressure change is measured by the current pressure sensor, a direct method is mainly adopted. The method directly adopts a pressure sensor to measure the internal pressure of the device to be measured, such as: the pressure before the change is X1, and after the change is X2, the amount of change is x=x2—x1. Because the sizes of X2 and X1 need to be measured, the measurement range of the pressure sensor is usually large, however, for a wide-range pressure sensor, the accuracy is usually small, for example, if the measurement range of the pressure sensor is set to be 2X 2, when the pressure change is less than 1% fs of the accuracy of the sensor, the system cannot measure the pressure change. However, physiological information of the user is usually weak, such as heartbeat and respiration information, which is difficult to measure by using the pressure sensor. So in order to measure the weak physiological information of human body, can set up piezoelectric sensor in the one side that the user of intelligent mattress was lying down, detect user's physiological information through piezoelectric sensor, however this mode not only needs pressure sensor and piezoelectric sensor two sensors, and piezoelectric sensor also can cause the comfort when the user lies down relatively poor.
In the above-mentioned scheme, by providing the comparison unit 4 with the same initial pressure as the first support unit 81, when the pressure on the first support unit 81 changes, the pressure difference detecting member 3 can measure the pressure difference relative to the comparison unit 4, so that the pressure change amount of the first support unit 81 can be reflected, and the pressure values before and after the pressure change of the first support unit 81 do not need to be detected by the pressure sensor. Therefore, the effect of measuring the pressure variation with high precision can be realized. Since the physiological information of the human body is reflected on the pressure variation of the first support unit 81, for example, when the user breathes, the pressure value received on the first support unit 81 is slightly changed, and thus the physiological information of the user can be known from the pressure variation by measuring the pressure variation of the first support unit 81. By making the measurement accuracy of the pressure change amount higher, the physiological information of the user can be measured with high accuracy. Because only the differential pressure detection piece 3 is needed to measure the differential pressure of the first supporting unit 81 and the contrast unit 4, the differential pressure detection piece 3 is not required to be arranged at the position which can be contacted by a user, and only the first supporting unit 81 is ensured to play a supporting role on the user, so that the comfort level of the user during use is improved, and the effects of higher comfort level and high detection precision during detection are realized.
In an alternative embodiment of the invention, as shown in fig. 3, the mattress body 7 is provided with a back area 71, and the first support unit 81 is provided on the back area 71. The back region 71 is a region where the back is normally in contact when the user lies on the mattress body 7, and the physiological parameter of the user is weaker than the information such as body movement, typically the information such as respiration and heartbeat, and by providing the first support unit 81 on the back region 71, the weaker physiological information such as respiration and heartbeat can be detected more accurately.
In an alternative embodiment of the present invention, as shown in fig. 1 and 4, the intelligent mattress further includes a first pressure sensing element 2 and a control pressure module 1.
The first pressure detecting member 2 is for detecting an initial pressure of the first supporting unit 81; the pressure detecting member refers to a member capable of detecting an initial pressure of the first supporting unit 81. In a specific embodiment, the pressure sensing element comprises a pressure sensor. The pressure sensor may be connected to the collation unit 4, and since the collation unit 4 is the same as the initial pressure of the first support unit 81, detecting the pressure of the collation unit 4 in the initial condition can reflect the initial pressure of the first support unit 81. In addition, the pressure sensor may be connected to the first support unit 81, so that the real-time pressure of the first support unit 81 can be detected, and the real-time pressure of the first support unit 81 may include the initial pressure of the first support unit 81 in the initial situation.
The pressure control module 1 is used for controlling the initial pressures of the contrast unit 4 and the first supporting unit 81 to be the same; the pressure control module 1 is a module capable of controlling the initial pressure of the contrast unit 4 and the first supporting unit 81 to be the same.
The control module 6 is electrically connected with the control module 1 and the first pressure detecting member 2, and the control module 6 is used for acquiring pressure information detected by the first pressure detecting member 2 and controlling the control module 1. Wherein the control module 6 is electrically connected to the first pressure detecting member 2, so that the control module 6 can acquire the pressure information detected by the first pressure detecting member 2. The control module 6 is electrically connected with the control module 1, so that the control module 6 can control the control module 1 without manual control by a user, and the use is convenient.
According to the scheme, as the initial pressures of the products with different models are different, and meanwhile, production errors exist, it is difficult to ensure that the initial pressures of all the products are the same in advance. Therefore, by providing the pressure detecting member and the pressure control module 1, the initial pressure of the first supporting unit 81 can be flexibly adjusted, and versatility is strong.
On the basis of the above embodiment, the control module 1 includes the power unit 11 and the first switching unit 12; the contrast unit 4 and the first supporting unit 81 are communicated through a pipeline, and the first switch unit 12 is used for controlling the on-off of the pipeline between the contrast unit 4 and the first supporting unit 81. Wherein, since the contrast unit 4 is communicated with the first supporting unit 81 through the pipe, the liquid or gas initially poured into the contrast unit 4 and the first supporting unit 81 can circulate in the contrast unit 4 and the first supporting unit 81 until the pressure between the contrast unit 4 and the first supporting unit 81 is the same in a state that the pipe is in a communicated state. The first switch unit 12 refers to a component capable of controlling the on-off of a pipeline, and in a specific embodiment, the first switch unit 12 comprises a first electromagnetic valve, and the electromagnetic valve (Electromagnetic valve) is an industrial device controlled by electromagnetic, is an automatic basic element for controlling fluid, and belongs to an actuator, and is not limited to hydraulic and pneumatic. By including the first solenoid valve in the first switching unit 12, the on-off of the piping between the collation unit 4 and the first support unit 81 can be controlled conveniently.
The power unit 11 is used for providing power for transporting the fluid to the contrast unit 4 and the first support unit 81; the control module 6 is electrically connected to the first switch unit 12, and is used for controlling the working state of the first switch unit 12.
The power unit 11 is a component that can provide power for transporting fluid to the control container and the container to be tested. Illustratively, the power unit 11 includes a pump body 111 and a fluid supply line 112, the pump body 111 including a fluid outlet, the fluid outlet of the pump body 111 being in communication with the control unit 4 via the fluid supply line 112. The pump body 111 is a mechanism for delivering or pressurizing fluid, and by providing the pump body 111 and the fluid supply line 112, the pump body 111 can deliver external fluid into the control unit 4 through the pump body 111 and the fluid supply line 112 when operating. By setting the control module 6, the user can automatically control the first switch unit 12 without manually controlling the first switch unit, and the use is more convenient.
On the basis of the above embodiment, as shown in fig. 5, the pressure control module 1 further includes a second switch unit 13, where the second switch unit 13 is disposed on the fluid supply pipeline 112 and is used to control on-off of the fluid supply pipeline 112; the second switch unit 13 refers to a component capable of controlling the on-off of the fluid supply pipeline 112, and in a specific embodiment, the second switch unit 13 includes a second electromagnetic valve, so that the on-off of the fluid supply pipeline 112 can be conveniently controlled.
The support device 8 further comprises a plurality of second support units 82, the power unit 11 further comprises a plurality of fluid supply branches 113 and a third switch unit 14, and the fluid outlet of the pump body 111 is connected to the plurality of fluid supply branches 113. In practical application, as shown in fig. 3, when the first support unit 81 is disposed on the back area 71, the second support unit 82 may be disposed on an area other than the back area 71, so as to support a plurality of areas of the user.
As shown in fig. 4 and 5, the plurality of fluid supply branches 113 are connected to the plurality of second supporting units 82 in one-to-one correspondence; the third switch units 14 are connected to the fluid supply branches 113 in a one-to-one correspondence manner, and are used for controlling the on-off of the fluid supply branches 113 in a one-to-one correspondence manner. By means of the plurality of third switch units 14 and the plurality of fluid supply branches 113, the supporting forces of the different second supporting units 82 can be adjusted, so that different requirements of users can be met. Meanwhile, a user can start the second switch unit 13 and the third switch according to the use requirement, so that the supporting force of different areas is changed, and the use is convenient.
The control module 6 is electrically connected with the second switch unit 13 and the third switch unit 14, and is used for controlling the working states of the second switch unit 13 and the third switch unit 14. Wherein, through the control module 6, the working states of the second switch unit 13 and the third switch unit 14 can be conveniently controlled on line.
On the basis of the above embodiment, the intelligent mattress further includes a plurality of second pressure detecting members 5, and the second pressure detecting members 5 are used to detect pressure information of the second supporting unit 82. The second pressure detecting member 5 is a member capable of detecting pressure, and in a specific embodiment, the second pressure detecting member 5 includes a pressure sensor, and the second pressure detecting member 5 may be connected to the second supporting unit 82, so that the pressure of the second supporting unit 82 may be detected, and thus, the pressure variation of the second supporting unit 82 may be determined.
Since only information such as the heartbeat and respiration of the user is weak and information such as the body movement is generally strong at the time of actual measurement, the detection accuracy can be improved by providing the first support unit 81 in the back region 71 of the user and simultaneously providing the contrast unit 4, the differential pressure detecting element 3, and the first pressure detecting element 2. By providing the second support unit 82 in the other region, only the second pressure detecting member 5 is provided, and production cost can be saved.
Illustratively, at least one of the first, second, and third switching units 12, 13, and 14 includes a solenoid valve; solenoid valves (Electromagnetic valve) are solenoid-operated industrial equipment, are automated basic elements for controlling fluids, and are actuators, not limited to hydraulic and pneumatic. By making at least one of the first switch unit 12, the second switch unit 13 and the third switch unit 14 include the first electromagnetic valve, the on-off of different pipelines can be controlled conveniently.
In a specific embodiment of the present invention, the range of the differential pressure sensor is 0.3Kpa, and the accuracy is 1% fs, so that the differential pressure between the contrast unit 4 and the first supporting unit 81 can be measured with high accuracy, and the pressure variation of the container to be measured can be obtained.
Example two
Fig. 6 is a flowchart of a method for detecting physiological information according to an embodiment of the present invention, where the method is applicable to a situation where physiological information of a user is measured while the user sleeps, the device for detecting physiological information may be implemented in hardware and/or software, and the device for detecting physiological information may be configured in a control module. As shown in fig. 6, the method includes:
s110, acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time.
S120, determining pressure variation information based on the differential pressure information and initial pressure information of the first supporting unit.
And S130, determining physiological information based on the pressure fluctuation information.
The pressure fluctuation information refers to information of pressure fluctuation conditions on the first supporting unit, wherein the pressure fluctuation conditions are reflected by the difference between the pressure of the first supporting unit at different time points and the initial pressure.
According to the scheme, the comparison unit which is equal to the initial pressure of the first supporting unit is arranged, and the pressure difference information of the first supporting unit and the comparison unit is detected by the pressure difference detection piece, so that the pressure change of the first supporting unit can be reflected, and the pressure value before and after the pressure change of the first supporting unit is not required to be detected by the pressure sensor. Therefore, the effect of measuring the pressure fluctuation information with high accuracy can be realized. Since the physiological information of the human body is reflected on the pressure variation amount of the first supporting unit, for example, when the user breathes, the pressure value received on the first supporting unit has a weak change, the physiological information of the user can be known according to the pressure variation information by determining the pressure variation information based on the pressure difference information and the initial pressure information of the first supporting unit. By making the measurement accuracy of the pressure fluctuation information high, the physiological information of the user can be measured with high accuracy. Because only the differential pressure detection piece is needed to measure the differential pressure of the first supporting unit and the contrast unit, the differential pressure detection piece is not needed to be arranged at the position which can be contacted by the user, and the first supporting unit is only required to play a supporting role on the user, so that the comfort level of the user during use is improved, and the effects of higher comfort level and high detection precision during detection are realized.
Example III
Fig. 7 is a flowchart of a physiological information detection method according to a third embodiment of the present invention, where the relationship between the above embodiments is improved. As shown in fig. 7, the method includes:
s200, controlling the first switch unit and the second switch unit to be turned on so as to enable the pump body to be communicated with the contrast unit and the first supporting unit.
The first switch unit controls the connection between the control unit and the first support unit, and the second switch unit controls the connection between the first support unit and the pump body, so that the pump body can be connected with the control unit and the first support unit by controlling the first switch unit and the second switch unit to be opened.
S210, controlling the pump body to be opened so that the pump body fills fluid into the control unit and the first supporting unit.
When the pump body is opened, external fluid can be transported to the contrast unit and the first supporting unit.
S220, acquiring first pressure information of the first supporting unit detected by the first pressure detecting piece in real time.
The first pressure information of the first supporting unit detected by the first pressure detecting member can be obtained by various obtaining modes, such as electrical connection with the first pressure detecting member.
And S230, controlling the second switch unit and the pump body to be closed so as to stop pouring fluid.
When the second switch unit and the pump body are closed, the pump body is not communicated with the control unit any more, so that the fluid filling to the control unit is stopped.
S240, acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time.
The pressure difference detection unit is electrically connected with the pressure difference detection unit, so that the pressure difference information of the first supporting unit and the control unit detected by the pressure difference detection unit can be obtained.
S250, determining whether the difference value between the differential pressure information and 0 is smaller than a preset difference value.
When the difference between the differential pressure information and 0 is smaller than the preset difference, the differential pressure information is close to 0, and the pressures between the contrast unit and the first supporting unit are approximately equal.
If yes, execution is S260, otherwise execution is S250.
And S260, determining the first pressure information at the moment as initial pressure information, and controlling the first switch unit to be closed so as to enter a detection mode.
When the pressures of the control unit and the first supporting unit are approximately equal, the detection can be started, so that the first pressure information at the moment is determined to be initial pressure information, and the control unit and the first supporting unit are not communicated any more by controlling the first switch unit to be closed, so that when the pressure on the first supporting unit changes, fluid cannot flow into the control unit to influence the measurement result.
S270, acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time.
S280, determining pressure variation information based on the differential pressure information and initial pressure information of the first support unit.
And S290, determining physiological information based on the pressure fluctuation information.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. An intelligent mattress is characterized by comprising a mattress body (7), wherein a supporting device (8), a comparison unit (4), a control module (6) and a differential pressure detection piece (3) are arranged on the mattress body (7);
the support device (8) comprises a first support unit (81), the first support unit (81) having a fluid inside;
-said contrast unit (4) has fluid inside and is at the same initial pressure as said first support unit (81);
the differential pressure detection piece (3) comprises a first detection end and a second detection end, the first detection end is connected with the contrast unit (4), the second detection end is connected with the first supporting unit (81), and the differential pressure detection piece (3) is used for detecting the differential pressure of the contrast unit (4) and the first supporting unit (81);
the control module (6) is electrically connected with the differential pressure detection piece (3) and is used for acquiring differential pressure information detected by the differential pressure detection piece (3);
the device also comprises a first pressure detection piece (2) and a pressure control module (1);
the first pressure detecting member (2) is for detecting an initial pressure of the first supporting unit (81);
the control module (1) is used for controlling the initial pressure of the control unit (4) and the first supporting unit (81) to be the same;
the control module (6) is electrically connected with the pressure control module (1) and the first pressure detection piece (2), and the control module (6) is used for acquiring pressure information detected by the first pressure detection piece (2) and controlling the pressure control module (1);
the control module (1) comprises a power unit (11) and a first switch unit (12);
the control unit (4) is communicated with the first supporting unit (81) through a pipeline, and the first switch unit (12) is used for controlling the on-off of the pipeline between the control unit (4) and the first supporting unit (81);
-the power unit (11) is adapted to provide power for transporting fluid to the contrast unit (4) and the first support unit (81);
the control module (6) is electrically connected with the first switch unit (12) and is used for controlling the working state of the first switch unit (12).
2. Intelligent mattress according to claim 1, characterized in that the mattress body (7) is provided with a back area (71), the first support unit (81) being arranged on the back area (71).
3. The intelligent mattress according to claim 1, characterized in that the power unit (11) comprises a pump body (111) and a fluid supply line (112), the pump body (111) comprising a fluid outlet, the fluid outlet of the pump body (111) being in communication with the control unit (4) through the fluid supply line (112).
4. A smart mattress according to claim 3, characterized in that the control module (1) further comprises a second switching unit (13), the second switching unit (13) being arranged on the fluid supply line (112) for controlling the on-off of the fluid supply line (112);
the supporting device (8) further comprises a plurality of second supporting units (82), the power unit (11) further comprises a plurality of fluid supply branches (113) and a third switch unit (14), and a fluid outlet of the pump body (111) is connected with the plurality of fluid supply branches (113);
a plurality of fluid supply branches (113) are connected with a plurality of second supporting units (82) in a one-to-one correspondence manner;
the third switch units (14) are connected with the fluid supply branches (113) in a one-to-one correspondence manner and are used for controlling the on-off of the fluid supply branches (113) in a one-to-one correspondence manner;
the control module (6) is electrically connected with the second switch unit (13) and the third switch unit (14) and is used for controlling the working states of the second switch unit (13) and the third switch unit (14).
5. The intelligent mattress according to claim 4, wherein at least one of the first (12), second (13) and third (14) switch units comprises a solenoid valve;
and/or the intelligent mattress further comprises a plurality of second pressure detection pieces (5), wherein the second pressure detection pieces (5) are used for detecting pressure information of the second supporting units (82).
6. The intelligent mattress according to any of claims 1 to 5, characterized in that the differential pressure detector (3) comprises a differential pressure sensor;
and/or the first pressure detecting member (2) comprises a pressure sensor.
7. A physiological information detection method, characterized in that: the intelligent mattress for use of any one of claims 1-6, the method comprising:
acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time;
determining pressure variation information based on the differential pressure information and initial pressure information of the first support unit;
physiological information is determined based on the pressure fluctuation information.
8. The method according to claim 7, wherein before the real-time acquisition of the differential pressure information of the first supporting unit and the reference unit is detected by the differential pressure detecting member, further comprising:
the first switch unit and the second switch unit are controlled to be turned on so that the pump body is communicated with the contrast unit and the first supporting unit;
controlling the pump body to be opened so as to enable the pump body to pour fluid into the control unit and the first supporting unit;
acquiring first pressure information of a first supporting unit detected by a first pressure detecting piece in real time;
controlling the second switching unit and the pump body to close to stop pouring fluid;
acquiring pressure difference information of the first supporting unit and the contrast unit detected by the pressure difference detection piece in real time;
determining whether the difference value between the differential pressure information and 0 is smaller than a preset difference value;
if yes, determining the first pressure information at the moment as initial pressure information, controlling the first switch unit to be closed to enter a detection mode, and simultaneously executing the step of acquiring the pressure difference information of the first support unit and the contrast unit detected by the pressure difference detection piece in real time in the detection mode.
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| CN114557571A (en) | 2022-05-31 |
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