CN113164097B - Vital sign monitoring method, device and system - Google Patents
Vital sign monitoring method, device and system Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 118
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid 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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid mattresses
- A47C27/10—Fluid mattresses with two or more independently-fillable chambers
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
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Abstract
The invention is suitable for the field of signal monitoring and provides a vital sign monitoring method, equipment and a system. The method comprises the following steps: s101, acquiring vital sign monitoring data of a first object acquired by a vibration sensor and distance information acquired by a distance measuring module; s102, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, processing the interference of the second object on the collected vital sign monitoring data of the first object, otherwise, directly returning to S101. When the first object and the second object lie on the same bed or mattress, the invention can eliminate or reduce the interference of the body movement of the second object on the collected vital sign monitoring data of the first object, and can greatly reduce the probability of possibly causing the monitoring error of the vital sign parameters of the subject, thereby greatly reducing the misdiagnosis rate.
Description
Technical Field
The invention belongs to the field of signal monitoring, and particularly relates to a vital sign monitoring method, equipment and a system.
Background
With the daily and monthly variation of science and technology, more and more products based on the vibration sensing technology applied to vital sign monitoring emerge like spring bamboo shoots after raining. Since the subject does not need to wear any sensors on his body, the long-term monitoring needs can be met. Based on the signal capturing mode, the optimal use scene is used in a sleep state, so that a large number of products (such as vibration monitoring pads) based on the vibration sensing technology applied to vital sign monitoring, especially sleep monitoring, are emerging. However, since vibration sensors are sensitive to vibrations, they are susceptible to external environmental disturbances, and thus present a significant challenge when two or more people lie on the same bed.
As shown in fig. 1, assuming that subject a is a subject for vital sign monitoring using a vibration monitoring pad, subject a sleeps on the same bed at the same time as non-subject B, the vibration monitoring pad is placed on the bed, and subject a lies above the vibration monitoring pad. When the non-subject B is very close to the subject a and lies on the vibration monitoring pad at the same time, the vital sign signal of the non-subject B is mixed into the original signal collected by the vibration monitoring pad, and the original signal components of the subject a and the non-subject B are difficult to strip, so that the measurement result of the subject a is affected and even the diagnosis error is caused; if the non-subject B does not lie on the vibration monitoring pad, but the non-subject B performs body movements to different degrees, the final vibration transmitted to the vibration monitoring pad may also introduce a signal with a signal energy amplitude equivalent to that of the subject a, and at this time, the original signal components of the subject a and the non-subject B are difficult to peel, which also affects the measurement result and even causes a diagnosis error; there is a more complex measurement impact when two scene combinations occur. Vibration monitoring pads therefore present a significant challenge in applications where two or more people lie on the same bed.
Disclosure of Invention
The invention aims to provide a vital sign monitoring method, equipment, a computer readable storage medium and a system, and aims to solve the problem that a vibration sensor for vital sign monitoring can influence the measurement result of a subject under the application scene that two or more people lie on the same bed.
In a first aspect, the present invention provides a vital sign monitoring method comprising:
s101, acquiring vital sign monitoring data of a first object acquired by a vibration sensor and distance information acquired by a distance measuring module, wherein the distance information is used for judging whether a second object can interfere the acquired vital sign monitoring data of the first object;
s102, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, processing the interference of the second object on the collected vital sign monitoring data of the first object, otherwise, directly returning to S101.
In a second aspect, the invention provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of a vital sign monitoring method as described.
In a third aspect, the present invention provides a vital sign monitoring device comprising: one or more processors, a memory, and one or more computer programs, wherein the processors and the memory are connected by a bus, the one or more computer programs being stored in the memory and configured to be executed by the one or more processors, which when executing the computer programs implement the steps of the vital sign monitoring method as described.
In a fourth aspect, the present invention provides a vital sign monitoring system, including the vital sign monitoring device, one or more vibration sensors for acquiring vital sign monitoring data of a first object, and a distance measurement module pair for acquiring distance information, where the vibration sensor and the distance measurement module pair are connected to the vital sign monitoring device, respectively.
In the invention, as the distance information is acquired through the distance measuring module, whether the second object interferes with the acquired vital sign monitoring data of the first object is judged according to the distance information, if so, the interference of the second object on the acquired vital sign monitoring data of the first object is processed, so that when the first object and the second object lie on the same bed or mattress, the interference of the body movement of the second object on the acquired vital sign monitoring data of the first object can be eliminated or reduced, the probability of possibly causing the monitoring error of the vital sign parameters of the subject can be greatly reduced, and the misdiagnosis rate is greatly reduced.
Drawings
FIG. 1 is a schematic view of the use of a vibration monitoring mat when two persons lie on the same bed.
Fig. 2 is a flowchart of a vital sign monitoring method according to an embodiment of the present invention.
Fig. 3 is a schematic view of the use of the vibration sensor and the ranging module when the first and second subjects lie on the same bed.
Fig. 4 is a schematic diagram of determining whether the determination distance information is smaller than a preset threshold when the second ranging module in the ranging module pair is configured to be placed at the bedside edge position of the first object side.
Fig. 5 is a schematic diagram of determining whether the distance information is greater than a preset threshold when the first ranging module in the ranging module pair is configured to be placed at the bedside edge position of the second object side.
FIG. 6 is a schematic diagram of determining whether the distance information is less than a predetermined threshold when a second ranging module of the pair of ranging modules is configured to be embedded in a pad.
Fig. 7 is a schematic view of a second object with different parts pressed against the balloon.
Fig. 8 is a specific structural block diagram of a vital sign monitoring device according to a third embodiment of the present invention.
Fig. 9 is a specific structural block diagram of a vital sign monitoring system according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
ExamplesAnd (3) a step of:
referring to fig. 2, a vital sign monitoring method according to an embodiment of the present invention includes the following steps: it should be noted that, if there are substantially the same results, the vital sign monitoring method of the present invention is not limited to the flow sequence shown in fig. 2.
S101, acquiring vital sign monitoring data of a first object acquired by a vibration sensor and distance information acquired by a distance measuring module, wherein the distance information is used for judging whether a second object can interfere the vital sign monitoring data of the first object.
In a first embodiment of the present invention, the first subject is a subject, and the second subject is a non-subject, as shown in fig. 3, the first subject and the second subject lie on the same bed or mattress. The vibration sensor 1011 is configured to be placed under the body of the first subject a in a supine, prone, lateral or semi-prone state, and the vibration sensor may be specifically configured to be placed in contact with the shoulder, back, waist or hip of the first subject. The first ranging module 1012 of the pair of ranging modules is configured to be placed anywhere on the body of the second object B, such as in a coat pocket, strapped to a shoulder, strapped to a waist band, worn on a wrist, etc. The second ranging module 1013 of the pair is configured to be placed in any fixed position (e.g., any position on the mattress plane, the foot position, or even a position that is not part of the region of the bed), and is shown in fig. 3 in the bedside position on the side of the first object a. The second object may be one or more.
The first ranging module in the ranging module pair is a signal transmitting end, and the second ranging module is a signal receiving end, which may be the signal receiving end, and the second ranging module is the signal transmitting end.
The pair of ranging modules may be any module that can be used for ranging, such as an infrared ranging module pair, an ultrasonic ranging module pair, an acoustic ranging module pair, etc., and a non-radiative ranging scheme is preferred in view of human health, such as an infrared ranging module pair.
In the first embodiment of the present invention, in order to obtain a more accurate positioning effect, the distance information may be collected by multiple sets of ranging modules. The plurality of ranging module pairs may include one second ranging module and a plurality of first ranging modules, each second object being configured with a plurality of first ranging modules; alternatively, the plurality of sets of ranging module pairs may include a first ranging module and a plurality of second ranging modules, each second object configured with a first ranging module, the plurality of second ranging modules configured to be positioned at a plurality of different arbitrary fixed locations, e.g., a plurality of different locations of the plurality of second ranging modules on the mattress plane, etc.; alternatively, the plurality of sets of ranging module pairs may include a plurality of first ranging modules and a plurality of second ranging modules, each second object configured with the plurality of first ranging modules, the plurality of second ranging modules configured to be placed in a plurality of different arbitrary fixed positions.
When the distance information is acquired by the plurality of sets of distance measuring modules, the distance information acquired by the plurality of sets of distance measuring modules is comprehensively calculated to obtain final distance information. For example, the average value of the distance information acquired by the multiple sets of distance measuring modules is used as the final distance information.
The vibration sensor is one or more of an acceleration sensor, a speed sensor, a displacement sensor, a pressure sensor, a strain sensor, or a sensor that converts the equivalent of a physical quantity based on acceleration, speed, pressure, or displacement. The strain sensor may be a fiber optic sensor. The appearance of the optical fiber sensor according to the first embodiment of the present invention may be a pad.
S102, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, processing the interference of the second object on the collected vital sign monitoring data of the first object, otherwise, directly returning to S101.
Referring to fig. 4, a schematic diagram of determining whether the distance information is smaller than a preset threshold when the second ranging module in the ranging module pair is configured to be placed on the first object side (e.g. the bedside edge position). The second ranging module 1013 is used as a center of a circle, a circle is drawn with a proper radius r, a boundary between an arc and a bed edge is taken as a boundary, and a shadow part in the figure defines the region as an affected region, that is, when the second object is sleeping, if the first ranging module 1012 enters the region, the second object is considered to interfere with the collected vital sign monitoring data of the first object. At this time, since the second ranging module is on the first object side, in this scenario, the determining, according to the distance information, whether the second object will cause interference to the collected vital sign monitoring data of the first object may specifically be:
judging whether the distance information is smaller than a preset threshold value, if so, judging that the second object can interfere the vital sign monitoring data of the collected first object, wherein the preset threshold value is that the distance measurement module is used for collecting the distance when the second object possibly lies on the vibration sensor or the distance between the second object and the vibration sensor is smaller than a tested value. The empirical value refers to the interval when the second subject is not lying on the vibration sensor, but is relatively close to the vibration sensor, which may interfere with vital sign monitoring data of the first subject. The preset threshold value may be a maximum value, a minimum value, a mean value in a period of time, or the like of a distance that the second object may lie on the vibration sensor, which is measured in advance after the actual scene simulation. In this embodiment, the minimum value may be used.
Referring to fig. 5, a schematic diagram of determining whether the distance information is greater than a preset threshold when a first ranging module in the ranging module pair is configured to be placed on a second object side (e.g., a bedside edge position). The second ranging module 1013 is used as a center of a circle, a circle is drawn with a proper radius r, a boundary between an arc and a bed edge is taken as a boundary, and a shadow part in the figure defines the region as an affected region, that is, when the second object is sleeping, if the first ranging module 1012 enters the region, the second object is considered to interfere with the collected vital sign monitoring data of the first object. At this time, since the second ranging module is on the second object side, in this scenario, the determining, according to the distance information, whether the second object will cause interference to the collected vital sign monitoring data of the first object may specifically be:
judging whether the distance information is larger than a preset threshold value, if so, judging that the second object can interfere vital sign monitoring data of the collected first object, wherein the preset threshold value is that the distance between the second object and the vibration sensor is smaller than the distance between the distance measuring module and the collected first object when the second object possibly lies on the vibration sensor or the distance between the second object and the vibration sensor is smaller than a tested value. The empirical value refers to the interval when the second subject is not lying on the vibration sensor, but is relatively close to the vibration sensor, which may interfere with vital sign monitoring data of the first subject. The preset threshold value may be a maximum value, a minimum value, an intermediate value between the maximum value and the minimum value, etc. of the distance that the second object may lie on the vibration sensor, which is measured in advance after the actual scene simulation. In this embodiment, it may be the maximum value.
In a first embodiment of the present invention, before S101, the method further includes the following steps:
s201, controlling to start a ranging module to acquire distance information;
s202, acquiring distance information acquired by a distance measuring module;
s203, judging whether the second object can cause interference to the collected vital sign monitoring data of the first object according to the distance information, if so, returning to S202, otherwise, executing S204;
s204, controlling to start the vibration sensor to collect vital sign monitoring data of the first object.
In the first embodiment of the present invention, before S101, the method may also include the following steps:
and controlling to start the acceleration sensor to acquire body movement information of the second object and starting the ranging module to acquire distance information.
In a first embodiment of the present invention, the processing, by the second object, the interference caused by the collected vital sign monitoring data of the first object may specifically be:
and determining the vital sign monitoring data of the first object acquired in the period of the interference caused by the second object to the acquired vital sign monitoring data of the first object as invalid data, and returning to S101.
The processing the interference caused by the second object to the collected vital sign monitoring data of the first object may also be:
s1021, determining the vital sign monitoring data of the first object obtained in a time period of interference caused by the second object on the collected vital sign monitoring data of the first object as invalid data;
s1022, controlling the vibration sensor to be closed to collect vital sign monitoring data of the first object so as to reduce operation and power consumption;
s1023, acquiring distance information acquired by a distance measuring module;
s1024, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, returning to S1023, otherwise, controlling to start the vibration sensor to collect the vital sign monitoring data of the first object, and then returning to S101.
In the first embodiment of the present invention, at the same time as S1021, or after S1021, the method may further include the following steps:
the control turns on a stimulator (e.g., vibration stimulator, shock stimulator, etc.) configured to be placed on the second subject B for prompting the second subject to pay attention to the distance from the first subject.
Referring to fig. 6, in a first embodiment of the present invention, a second ranging module of the vibration sensor and ranging module pair may be built into a mat including a central sleep test area and an airbag at one or both side edges of the mat, and a second subject lying beside the airbag when the mat includes the airbag at one side edge of the mat. The cushion also comprises an air pressure adjusting module connected with the air bag ventilation valve and used for adjusting the air pressure value in the air bag.
In this scenario, the determining, according to the distance information, whether the second object may cause interference to the collected vital sign monitoring data of the first object may specifically be:
and judging whether the distance information is smaller than a preset threshold value, if so, judging that the second object can cause interference to the acquired vital sign monitoring data of the first object, wherein the preset threshold value is the distance that the second object can lie on the vibration sensor. The preset threshold value may be a maximum value, a minimum value, an intermediate value between the maximum value and the minimum value, etc. of the distance in which the second object may lie on the vibration sensor, which is measured in advance. In this embodiment, the minimum value may be used.
In the first embodiment of the present invention, before or after S101, the method may further include the following steps:
receiving an instruction for manually controlling the air bag;
controlling the air pressure regulating module to start to work, and inflating the air bag;
controlling the pressure measuring module to measure the air pressure value in the air bag;
judging whether the air bag reaches the set air pressure value, if so, stopping inflating the air bag by the air pressure adjusting module, so as to prevent the influence on the test result when a second object approaches or even presses the cushion in the sleeping process.
In a first embodiment of the present invention, the processing, by the second object, the interference caused by the collected vital sign monitoring data of the first object may specifically be:
determining vital sign monitoring data of the first object acquired in a time period of interference caused by the second object to the acquired vital sign monitoring data of the first object as invalid data;
controlling the air pressure regulating module to start to work, and inflating the air bag;
controlling the pressure measuring module to measure the air pressure value in the air bag;
and judging whether the air bag reaches the set air pressure value, if so, stopping inflating the air bag by the air pressure adjusting module, and returning to S101.
The processing the interference caused by the second object to the collected vital sign monitoring data of the first object may also be:
s1031, determining the vital sign monitoring data of the first object obtained in a time period of interference caused by the second object on the collected vital sign monitoring data of the first object as invalid data;
s1032, controlling the air pressure regulating module to start to work, and inflating the air bag;
s1033, controlling a pressure measuring module to measure the air pressure value in the air bag;
s1034, judging whether the air bag reaches the set air pressure value, if so, stopping inflating the air bag by the air pressure adjusting module;
s1035, controlling the vibration sensor to be closed to collect vital sign monitoring data of the first object so as to reduce operation and power consumption;
s1036, acquiring distance information acquired by the distance measuring module pair;
s1037, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, returning to S1036, otherwise, controlling to start the vibration sensor to collect the vital sign monitoring data of the first object, and then returning to S101.
As shown in fig. 6, the distance from the second object to the mat is l, and the preset threshold value is r; l may be a linear distance between the first ranging module and the second ranging module or a calculated distance of the first ranging module from the edge of the mat, etc., where the linear distance l between the first ranging module and the second ranging module is selected AB The method comprises the steps of carrying out a first treatment on the surface of the r may be a maximum value, a minimum value, a mean value over time, etc. of the distance between the first ranging module and the second ranging module, and in this embodiment may be a minimum value.
Can be based on the linear distance l between the first ranging module and the second ranging module AB Short time change l' AB Presuming a sleep state of the second subject, and so on; by calculating l AB Relative relation to r and l' AB Is used for obtaining the interference possibility alpha 1 And interference level beta 1 。
As shown in fig. 7, the pressure P of the arm and the trunk of the second subject against the air bag is different; for example, since the pressure P of the trunk against the air bag is greater than that of the upper limb, it is presumed that, to a certain extent, the greater P, the more the second subject is from the first subjectMore recently, the possibility of interference alpha 1 Greater interference level beta 1 Are also relatively severe; for another example, when the second object has an action like turning over and the like pressed against the air bag and approaches the first object, the change value Δp of the air pressure in the air bag is larger, and if the action like turning over and the like pressed against the air bag is finished, Δp=0 or the change value is relatively smaller. The likelihood of disturbance alpha can thus be calculated from the pressure P of the limb or torso of the second subject against the bladder and the change in pressure deltaP in the bladder caused by the movement of the limb or torso 2 And interference severity beta 2 。
The step S1032 may specifically be: comprehensive alpha 1 、α 2 Beta 1 、β 2 The interference probability alpha and the interference level beta are evaluated. Alpha, beta can be obtained by reacting alpha 1 、α 2 Or beta 1 、β 2 Each of which is calculated by summing the corresponding coefficients or other formulas, e.g., α=j×α 1 +k*α 2 ，β＝s*β 1 +t*β 2 The method comprises the steps of carrying out a first treatment on the surface of the Where the coefficient j, k, s, t is related to the size, shape, etc. of the balloon. For example, it is preferable to take α= (α) 1 +α 2 )/2，β＝(β 1 +β 2 )/2；
When the alpha and the beta are both larger than the preset value, the air pressure adjusting module is controlled to inflate the air bag, so that the inflated air bag can interfere the second object to be far away from the cushion.
After inflation of the balloon, the method may further comprise the steps of:
comprehensive alpha 1 、α 2 Beta 1 、β 2 Evaluating the interference probability alpha and the interference level beta, alpha, beta can be obtained by comparing alpha 1 、α 2 Or beta 1 、β 2 Each of which is calculated by summing the corresponding coefficients or other formulas, e.g., α=j×α 1 +k*α 2 ，β＝s*β 1 +t*β 2 The method comprises the steps of carrying out a first treatment on the surface of the Where the coefficient j, k, s, t is related to the size, shape, etc. of the balloon. For example, it is preferable to take α= (α) 1 +α 2 )/2，β＝(β 1 +β 2 )/2；
When alpha and beta are smaller than the preset value, the air pressure adjusting module is controlled to deflate the air bag.
Embodiment two:
a second embodiment of the present invention provides a computer readable storage medium storing a computer program, where the computer program implements the steps of the vital sign monitoring method according to the first embodiment of the present invention when the computer program is executed by a processor.
Embodiment III:
fig. 8 shows a specific block diagram of a vital sign monitoring device 100 according to a third embodiment of the present invention, where the vital sign monitoring device 100 includes: one or more processors 101, a memory 102, and one or more computer programs, wherein the processors 101 and the memory 102 are connected by a bus, the one or more computer programs being stored in the memory 102 and configured to be executed by the one or more processors 101, the processor 101 implementing the steps of the vital sign monitoring method as provided by the first embodiment of the present invention when the computer programs are executed.
Embodiment four:
referring to fig. 9, a vital sign monitoring system according to a fourth embodiment of the present invention includes a vital sign monitoring device 100 according to a third embodiment of the present invention, one or more vibration sensors 200 for acquiring vital sign monitoring data of a first subject, and a distance measuring module pair 300 for acquiring distance information. The vibration sensor 200 and the distance measuring module pair 300 are respectively connected to the vital sign monitoring device 100, and may be connected through a signal line or connected in a wireless manner.
In a fourth embodiment of the present invention, the vital sign monitoring system may further include a stimulator (e.g., a vibration stimulator, a shock stimulator, etc.) configured to be placed on the second subject for prompting the second subject to pay attention to the physical activity. The stimulator may be connected to the vital signs monitoring device 100 by a signal line or wirelessly.
In a fourth embodiment of the present invention, the vital sign monitoring system may further include a mat, the second ranging module of the vibration sensor and ranging module pair may be built into the mat, the mat including a central sleep test area and an air bag located at one or both side edges of the mat, the second subject lying beside the air bag when the mat includes the air bag located at one side edge of the mat. The cushion also comprises an air pressure adjusting module connected with the air bag ventilation valve and used for adjusting the air pressure value in the air bag. The pressure measuring module and the air pressure adjusting module are both connected with the vital sign monitoring device 100, and can be connected through a signal wire or connected in a wireless mode.
In the invention, as the distance information is acquired through the distance measuring module, whether the second object interferes with the acquired vital sign monitoring data of the first object is judged according to the distance information, if so, the interference of the second object on the acquired vital sign monitoring data of the first object is processed, so that when the first object and the second object lie on the same bed or mattress, the interference of the body movement of the second object on the acquired vital sign monitoring data of the first object can be eliminated or reduced, the probability of possibly causing the monitoring error of the vital sign parameters of the subject can be greatly reduced, and the misdiagnosis rate is greatly reduced.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (18)
1. A method of vital sign monitoring, the method comprising:
s101, acquiring vital sign monitoring data of a first object acquired by a vibration sensor and distance information acquired by a distance measuring module, wherein the distance information is used for judging whether a second object can interfere the acquired vital sign monitoring data of the first object; a second ranging module of the vibration sensor and ranging module pair is built in the cushion, the cushion comprises a central sleep test area and air bags positioned at one side or two side edges of the cushion, and when the cushion comprises the air bags positioned at one side edge of the cushion, a second object is laid beside the air bags; the cushion also comprises an air pressure adjusting module connected with the air bag ventilation valve and used for adjusting the air pressure value in the air bag;
s102, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, processing the interference of the second object on the collected vital sign monitoring data of the first object, otherwise, directly returning to S101;
the processing of the interference caused by the second object to the collected vital sign monitoring data of the first object specifically comprises the following steps:
determining vital sign monitoring data of the first object acquired in a time period of interference caused by the second object to the acquired vital sign monitoring data of the first object as invalid data;
controlling the air pressure regulating module to start to work, and inflating the air bag;
controlling the pressure measuring module to measure the air pressure value in the air bag;
judging whether the air bag reaches the set air pressure value, if so, stopping inflating the air bag by the air pressure adjusting module, and returning to S101;
or,
the processing of the interference caused by the second object to the collected vital sign monitoring data of the first object specifically comprises the following steps:
s1031, determining the vital sign monitoring data of the first object obtained in a time period of interference caused by the second object on the collected vital sign monitoring data of the first object as invalid data;
s1032, controlling the air pressure regulating module to start to work, and inflating the air bag;
s1033, controlling a pressure measuring module to measure the air pressure value in the air bag;
s1034, judging whether the air bag reaches the set air pressure value, if so, stopping inflating the air bag by the air pressure adjusting module;
s1035, controlling the vibration sensor to be closed to acquire vital sign monitoring data of the first object;
s1036, acquiring distance information acquired by the distance measuring module pair;
s1037, judging whether the second object can interfere the collected vital sign monitoring data of the first object according to the distance information, if so, returning to S1036, otherwise, controlling to start the vibration sensor to collect the vital sign monitoring data of the first object, and then returning to S101.
2. The method of claim 1, wherein the first subject is a subject and the second subject is a non-subject, the first subject and the second subject lying on the same bed or mattress; the vibration sensor is configured to be placed under the body of the first object, the first ranging module of the pair of ranging modules is configured to be placed at an arbitrary position on the body of the second object, and the second ranging module of the pair of ranging modules is configured to be placed at an arbitrary fixed position; the second object is one or more.
3. The method of claim 2, wherein the first subject is in a supine, prone, lateral or semi-prone state, and the vibration sensor is configured to be placed in contact with a shoulder, back, waist or hip of the first subject.
4. The method of claim 2, wherein the distance information is collected by a plurality of sets of ranging module pairs;
the plurality of the ranging module pairs comprise a second ranging module and a plurality of first ranging modules, and each second object is provided with the plurality of first ranging modules; or, the plurality of ranging module pairs include a first ranging module and a plurality of second ranging modules, each second object being configured with a first ranging module, the plurality of second ranging modules being configured to be placed in a plurality of different arbitrary fixed positions; or, the plurality of sets of ranging module pairs include a plurality of first ranging modules and a plurality of second ranging modules, each second object being configured with the plurality of first ranging modules, the plurality of second ranging modules being configured to be placed in a plurality of different arbitrary fixed positions.
5. The method of claim 4, wherein when the distance information is collected by a plurality of sets of ranging modules, the distance information is comprehensively calculated from the distance information collected by the plurality of sets of ranging modules to obtain final distance information.
6. The method of claim 2, wherein the second ranging module is on the first object side, and the determining whether the second object will interfere with the collected vital sign monitoring data of the first object according to the distance information is specifically:
judging whether the distance information is smaller than a preset threshold value, if so, judging that the second object can interfere the vital sign monitoring data of the collected first object, wherein the preset threshold value is that the distance measurement module is used for collecting the distance when the second object possibly lies on the vibration sensor or the distance between the second object and the vibration sensor is smaller than a tested value.
7. The method of claim 2, wherein the second ranging module is on the second object side, and the determining whether the second object will interfere with the collected vital sign monitoring data of the first object according to the distance information is specifically:
judging whether the distance information is larger than a preset threshold value, if so, judging that the second object can interfere vital sign monitoring data of the collected first object, wherein the preset threshold value is that the distance between the second object and the vibration sensor is smaller than the distance between the distance measuring module and the collected first object when the second object possibly lies on the vibration sensor or the distance between the second object and the vibration sensor is smaller than a tested value.
8. The method of claim 1, wherein prior to S101, the method further comprises the steps of:
s201, controlling to start a ranging module to acquire distance information;
s202, acquiring distance information acquired by a distance measuring module;
s203, judging whether the second object can cause interference to the collected vital sign monitoring data of the first object according to the distance information, if so, returning to S202, otherwise, executing S204;
s204, controlling to start a vibration sensor to collect vital sign monitoring data of the first object;
or,
prior to S101, the method comprises the steps of:
and controlling to start the acceleration sensor to acquire body movement information of the second object and starting the ranging module to acquire distance information.
9. The method according to claim 1, wherein determining whether the second subject will interfere with the collected vital sign monitoring data of the first subject based on the distance information is specifically:
and judging whether the distance information is smaller than a preset threshold value, if so, judging that the second object can cause interference to the acquired vital sign monitoring data of the first object, wherein the preset threshold value is the distance that the second object can lie on the vibration sensor.
10. The method of claim 9, wherein before or after S101, the method further comprises the steps of: receiving an instruction for manually controlling the air bag;
controlling the air pressure regulating module to start to work, and inflating the air bag;
controlling the pressure measuring module to measure the air pressure value in the air bag;
judging whether the air bag reaches the set air pressure value, and if so, stopping inflating the air bag by the air pressure adjusting module.
11. The method of claim 1, wherein a linear distance l between the first ranging module and the second ranging module is calculated AB Relative to a preset threshold r and l AB Short time change l' AB Is used for obtaining the interference possibility alpha 1 And interference level beta 1 ；
Calculating the disturbance possibility alpha according to the pressure P of the limb or the trunk of the second object pressing on the air bag and the change delta P of the pressure in the air bag caused by the movement of the limb or the trunk 2 And beta 2 ；
The step S1032 specifically includes:
comprehensive alpha 1 、β 1 、α 2 And beta 2 Evaluating the interference probability alpha and the interference level beta;
when the alpha and the beta are both larger than the preset value, the air pressure regulating module is controlled to inflate the air bag;
after inflation of the balloon, the method further comprises the steps of:
comprehensive alpha 1 、β 1 、α 2 And beta 2 Evaluating the interference probability alpha and the interference level beta;
when alpha and beta are smaller than the preset value, the air pressure adjusting module is controlled to deflate the air bag.
12. The method of claim 1, wherein the vibration sensor is one or more of an acceleration sensor, a velocity sensor, a displacement sensor, a pressure sensor, a strain sensor, or a sensor that converts a physical quantity equivalent based on acceleration, velocity, pressure, or displacement.
13. The method of claim 12, wherein the strain sensor is a fiber optic sensor.
14. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the vital sign monitoring method according to any of claims 1 to 13.
15. A vital sign monitoring device comprising: one or more processors, a memory, and one or more computer programs, wherein the processors and the memory are connected by a bus, the one or more computer programs being stored in the memory and configured to be executed by the one or more processors, characterized in that the processor, when executing the computer programs, implements the steps of the vital sign monitoring method of any of claims 1 to 13.
16. A vital sign monitoring system comprising the vital sign monitoring device of claim 15, one or more vibration sensors for acquiring vital sign monitoring data of the first subject, and a pair of distance measuring modules for acquiring distance information, wherein the pair of vibration sensors and distance measuring modules are respectively connected to the vital sign monitoring device.
17. The system of claim 16, wherein the vital sign monitoring system further comprises a stimulator configured to be placed on the second subject for prompting the second subject to pay attention to physical activity, the stimulator being coupled to the vital sign monitoring device.
18. The system of claim 16, wherein the vital sign monitoring system further comprises a mat, the second ranging module of the vibration sensor and ranging module pair being built into the mat, the mat comprising a central sleep test zone and an air bladder at one or both side edges of the mat, the second subject lying alongside the air bladder when the mat comprises an air bladder at one side edge of the mat; the cushion also comprises an air pressure adjusting module connected with the air bag ventilation valve and used for adjusting the air pressure value in the air bag; the pressure measuring module and the air pressure adjusting module are both connected with vital sign monitoring equipment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/076762 WO2020177034A1 (en) | 2019-03-01 | 2019-03-01 | Vital sign monitoring method, device, and system |
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| CN113164097A CN113164097A (en) | 2021-07-23 |
| CN113164097B true CN113164097B (en) | 2024-01-26 |
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| WO2020177034A1 (en) | 2020-09-10 |
| CN113164097A (en) | 2021-07-23 |
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