CN110833402A

CN110833402A - Physiological parameter measuring system and method

Info

Publication number: CN110833402A
Application number: CN201810942802.2A
Authority: CN
Inventors: 施青峰; 庄少春
Original assignee: Shenzhen Dama Technology Co Ltd
Current assignee: Shenzhen Dama Technology Co Ltd
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2020-02-25
Also published as: WO2020034231A1

Abstract

A physiological parameter measurement system and method for automatically identifying a body part is provided. The method comprises the following steps: acquiring vibration information of the lying object from the first sensor array; acquiring sensing information of the lying object from a second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and determining the corresponding relation between each part of the body of the lying object and the vibration information according to the position information and the vibration information.

Description

Physiological parameter measuring system and method

Technical Field

The present invention relates to a physiological parameter measuring system and method, and more particularly, to a physiological parameter measuring system and method capable of automatically recognizing a body part.

Background

The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.

In daily life, people often need to measure own physiological parameters through professional medical equipment, such as blood pressure, heart rate, blood sugar content and the like. In some special cases, such as sick, the medical condition is usually determined by measuring the physiological parameters with the help of professionals, such as measuring the Pulse Wave Velocity (PWV) to assess the degree of elasticity of the artery, measuring the muscle vibration information to assess the magnitude of the mental stress, etc.

For many professional measurements, it is often necessary for the object to be measured to lie in a fixed position. If the measured object is displaced in the measuring area, the measuring device cannot automatically identify which part of the body the measured data belongs to, thereby causing inaccurate measurement. This limitation is particularly acute for home measurements. For example, some measuring devices, such as professional medical mattresses, monitor a subject while the subject is sleeping, and the subject is prone to inaccurate measurement due to body movement after sleeping. Therefore, a measuring device capable of automatically recognizing a body part is required to meet higher use demands of users.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present invention is to provide a system and a method for measuring physiological parameters, which can automatically identify body parts, in order to solve the technical problems related to the measurement of physiological parameters in the prior art.

In order to solve the foregoing technical problem, in one aspect, an embodiment of the present invention provides a method, including: acquiring vibration information of the lying object from the first sensor array; acquiring sensing information of the lying object from a second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and determining the corresponding relation between each part of the body of the lying object and the vibration information according to the position information and the vibration information.

Preferably, the sensing information includes at least one of pressure information, strain information, velocity information, acceleration information, displacement information, temperature information, reflected light information, or infrared radiation information.

Preferably, the first sensor array and/or the second sensor array comprises a plurality of fibre optic sensors, each of the fibre optic sensors comprising: an optical fiber arranged in a substantially planar configuration; a light source coupled to one end of the one or more optical fibers; a receiver coupled to the other end of the one optical fiber and configured to sense a change in light intensity through the optical fiber; and a mesh layer composed of meshes provided with openings, wherein the mesh layer is in contact with the surface of the optical fiber.

Preferably, the second sensor array includes a plurality of pressure sensors, and when the lying object is located on the second sensor array, the one or more processors acquire pressure information from each pressure sensor, and generate a pressure distribution map according to the pressure information, so as to obtain the position information of the lying object, and further determine corresponding information between each part of the body and each sensor in the second sensor array.

Preferably, the second sensor array includes a plurality of infrared sensors, and when the lying object is located on the second sensor array, the one or more processors acquire infrared radiation information from each infrared sensor, and generate position information of the lying object according to the infrared radiation information, thereby determining a correspondence between each part of the body and each sensor in the second sensor array.

Preferably, the second sensor array includes a plurality of temperature sensors, and when the lying object is located on the second sensor array, the one or more processors acquire temperature information from each temperature sensor, and generate position information of the lying object according to the temperature information, thereby determining a correspondence between each part of the body and each sensor in the second sensor array.

Preferably, the first and second sensor arrays are configured to be disposed in the same layer, the first sensor array including a plurality of optical fiber sensors, the second sensor array being distributed in gaps of the optical fibers.

Preferably, the vibration information includes at least one of a vibration caused by respiration, a vibration caused by systolic relaxation, a vibration caused by pulse wave conduction, or a body motion of a human body.

In another aspect, the present invention further provides a system, comprising: a first sensor array configured to be placed below a lying subject, acquiring vibration information of the lying subject; the second sensor array is configured to be arranged below the lying object and used for acquiring the sensing information of the lying object; one or more processors; and one or more storage devices storing instructions that, when executed by the one or more processors, perform operations comprising: acquiring vibration information of the lying object from the first sensor array; acquiring sensing information of the lying object from the second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and determining the corresponding relation between each part of the body of the lying object and the vibration information according to the position information and the vibration information.

Preferably, the second sensor array includes a plurality of pressure sensors, and when the lying object is located on the second sensor array, the one or more processors acquire pressure information from each pressure sensor, and generate a pressure distribution map according to the pressure information, so as to obtain position information of the lying object, and further determine corresponding information between each part of the body and each sensor in the second sensor array.

In yet another aspect, the present invention also provides an apparatus, comprising: the body is used for a lying object to lie, and comprises an upper cover and a lower cover; a first sensor array configured to be placed below a lying subject, acquiring vibration information of the lying subject; the second sensor array is configured to be arranged below the lying object and used for acquiring sensing information of the lying object; wherein the upper cover and the lower cover enclose the first sensor array and the second sensor array therein.

Preferably, the apparatus further comprises one or more processors, and one or more storage devices storing instructions that when executed by the one or more processors perform the following: acquiring vibration information of the lying object from the first sensor array; acquiring sensing information of the lying object from the second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and determining the corresponding relation between each part of the body of the lying object and the vibration information according to the position information and the vibration information.

According to the invention, the sensor for acquiring the vibration information is combined with the positioning sensor, so that the automatic identification of the body part is realized, and the vibration information is automatically associated with the body part generating the vibration information. The measured object does not need to be fixed at a specific position, and can move freely on the measuring equipment, so that the user experience is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that the invention can also be applied to other similar scenarios according to these drawings without inventive effort. Unless otherwise apparent from the context of language or otherwise indicated, like reference numerals in the figures refer to like structures and operations.

FIG. 1 is a schematic diagram of a physiological parameter measurement system that automatically identifies a body part according to some embodiments of the present application;

FIG. 2 is a block diagram of a computing device according to some embodiments of the present application;

FIG. 3 is a schematic diagram of a sensing device according to some embodiments of the present application;

FIG. 4 is a schematic structural diagram of an optical fiber sensing device according to some embodiments of the present application;

FIG. 5 is a schematic diagram of a second sensor array configuration according to some embodiments of the present application;

FIG. 6 is a schematic view of a sensing device according to some embodiments of the present application;

FIG. 7 is a flow chart of a method of automatically identifying a physiological parameter measurement of a body part according to some embodiments of the present application.

Detailed Description

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

FIG. 1 is a schematic diagram of a physiological parameter measurement system 100 according to some embodiments of the present application. As shown in FIG. 1, the physiological parameter measurement system 100 can include a sensing device 101, a network 103, a server 105, a storage device 107, and an output device 109.

The sensing device 101 may be configured to automatically recognize position information of each part of the body of the subject 102 and acquire vibration information of the part. In some embodiments, the sensing device 101 may include one or more vibration sensitive sensors, such as acceleration sensors, velocity sensors, displacement sensors, pressure sensors, strain sensors, stress sensors, or sensors that equivalently transform physical quantities based on acceleration, velocity, displacement, or pressure (e.g., electrostatic charge sensitive sensors, gas-filled micro-motion sensors, radar sensors, etc.). In some embodiments, the strain sensor may be a fiber optic strain sensor. In some embodiments, the sensing device 101 may further include an infrared sensor, a photoelectric sensor, or the like to acquire sensing information of the object. The sensing device 101 may be configured to be placed on various types of beds such as a medical bed, a nursing bed, and the like, in which the subject 102 is located. The subject 102 may be a living being undergoing vital sign signal monitoring. In some embodiments, the subject 102 may be a hospital patient or a caretaker, such as an elderly person, a person being prohibited, or other person. The sensing device 101 may transmit the acquired vibration information and sensing information of the object 102 to the server 105 through the network 103 for subsequent processing. In some embodiments, the vibration information obtained by the sensing device 101 can be processed to calculate vital sign signals of the subject, such as heart rate, respiratory rate, body temperature, and the like. In some embodiments, after the vibration information acquired by the sensing device 101 is processed, Pulse Wave propagation parameters of the subject, such as Pulse Wave Transit Time (PTT) and Pulse Wave propagation velocity PWV, can be calculated. In some embodiments, the sensing information obtained by the sensing device 101 may be processed to obtain the position information of the subject, for example, the corresponding information between each part of the subject's body and the pressure sensor. The sensing device 101 may also transmit the acquired vibration information and the sensing information to the output device 109 for output, for example, a waveform diagram of the vibration information and the sensing information is displayed by a display. The sensing device 101 may also transmit the acquired vibration information and sensing information of the object 102 to the storage device 107 through the network 103 for storage, for example, the system 100 may include a plurality of sensing devices, and the vibration information and sensing information of a plurality of objects acquired by the plurality of sensing devices may be transmitted to the storage device 107 for storage as part of the user data.

The network 103 may enable the exchange of information. In some embodiments, the components of the physiological parameter measurement system 100 (i.e., the sensing device 101, the network 103, the server 105, the storage device 107, and the output device 109) can exchange information with each other via the network 103. For example, the sensing device 101 may store the acquired vital sign related signals of the subject 102 to the storage device 107 via the network 103. In some embodiments, the network 103 may be a single network, such as a wired network or a wireless network, or may be a combination of networks. Network 103 may include, but is not limited to, a local area network, a wide area network, a shared network, a private network, and the like. The network 103 may include a variety of network access points, such as wireless or wired access points, base stations, or network access points, through which other components of the physiological parameter measurement system 100 may connect to the network 103 and communicate information over the network.

The server 105 is configured to process information. For example, the server 105 may receive vibration information and sensing information of the subject 102 from the sensing device 101 and extract vital sign signals of the subject, such as heart rate, respiration rate, etc., from the vibration information and the sensing information. In some embodiments, the server 105 may be a single server or a group of servers. The server farm may be clustered or distributed (i.e., the server 105 may be a distributed system). In some embodiments, the server 105 may be local or remote. For example, server 105 may access data stored in storage device 107, sensing device 101, and/or output device 109 via network 103. For another example, the server 105 may be directly connected to the sensing device 101, the storage device 107, and/or the output device 109 for data storage. In some embodiments, the server 105 may also be deployed on a cloud platform, which may include, but is not limited to, a public cloud, a private cloud, a hybrid cloud, and the like. In some embodiments, the server 105 may be implemented on the computing device 400 shown in FIG. 2.

The storage device 107 is configured to store data and instructions. In some embodiments, storage 107 may include, but is not limited to, random access memory devices, read only memory devices, programmable read only memory devices, and the like. The storage device 107 may be a device that stores information by an electric energy method, a magnetic energy method, an optical method, or the like, such as a hard disk, a flexible disk, a magnetic core storage device, a CD, a DVD, or the like. The above mentioned storage devices are only examples, and the storage device used by the storage apparatus 107 is not limited thereto. The storage device 107 may store vibration information and/or sensing information of the subject 102 acquired by the sensing device 101, and may also store data processed by the server 105 on the vibration information and/or sensing information, such as vital sign information (respiration rate, heart rate) of the subject 102. In some embodiments, the storage 107 may be an integral part of the server 105.

The output device 109 is configured to output data. In some embodiments, the output device 109 can output the vital sign signals generated after processing by the server 105, and the output mode includes, but is not limited to, one or more of graphic display, digital display, voice broadcast, braille display, and the like. The output device 109 may be one or more of a display, a cell phone, a tablet, a projector, a wearable device (watch, headset, glasses, etc.), a braille display, and the like. In some embodiments, the output device 109 may display vital sign signals (e.g., respiration rate, heart rate, etc.) of the subject 102 in real-time, and in other embodiments, the output device 109 may display a report in non-real-time, the report being a measurement of the subject 102 over a predetermined period of time, such as a heart rate per minute monitoring and a respiration rate per minute monitoring of the user during a sleep session. In some embodiments, the output device 109 may also output the warning prompt in a manner including, but not limited to, an audible alarm, a vibratory alarm, a visual display alarm, and the like. For example, the subject 102 may be a monitored patient, the output device 109 may be a display screen in a nurse station, the results displayed by the output device 109 may be a real-time heart rate, a real-time respiration rate, and the like, and when the heart rate and respiration rate are abnormal (e.g., exceed a threshold value or change greatly within a preset time period), the output device 109 may generate an alarm sound to prompt a medical staff, and the medical staff may rescue the patient in time, and the like. In other embodiments, the output devices 109 may be communication devices (e.g., mobile phones) carried by doctors, when the vital signs of the subject 102 are abnormal, one or more output devices 109 carried by one or more doctors may receive the warning information, and the warning information may be pushed according to the distance between the terminal device and the subject 102.

It should be understood that the application scenarios of the system and method of the present application are merely examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios without inventive effort based on these drawings. The physiological parameter measuring system 100 may be used in a home scenario, the sensing device 101 may be placed on a common home bed, when the subject 102 (e.g. elderly elders, people with cardiovascular diseases, people in post-operative rehabilitation period) is in a sleep state in the evening, the sensing device 101 may continuously or in a predetermined or required manner acquire vibration information and/or induction information of the subject, and then transmit the vibration information and/or induction information (which may be transmitted in real time or may be transmitted all data of the previous night in a predetermined time, such as the next morning) of the subject to the cloud server 105 for processing via the network 103, the cloud server 105 may transmit the processed information (e.g. heart rate per minute, respiration rate, aorta PWV) to the terminal 109, the terminal 109 may be a computer of a family doctor of the subject 102, and the family doctor may evaluate the physical condition of the subject 102 according to the processed information of the subject 102, Rehabilitation situations, etc.

It should be noted that the above-mentioned description is only a specific embodiment of the present application and should not be considered as the only embodiment. It will be apparent to persons skilled in the relevant art(s) that various modifications and changes in form and detail can be made therein without departing from the principles and arrangements of the invention, but the invention is not to be limited thereto. In some embodiments, the server 105, the storage 107 and the output 109 may be implemented as one device and implement the respective functions. For example, the physiological parameter measurement system 100 can include a sensing device and a computer. The sensing device 101 may be directly connected to a computer through a cable or may be connected to a computer through a network, and the computer may realize all functions of the server 105, the storage device 107, and the output device 109, and perform functions of data processing, storage, display, and the like. In other embodiments, the physiological parameter measuring system 100 may include a sensing device and an integrated circuit integrated with the sensing device (e.g., integrated in a mat), the integrated circuit being connected to a display screen for performing the functions of the server 105 and the storage device 107, and the display screen serving as the output device 109 for performing the functions of data processing, storage, and display.

FIG. 2 is a block diagram of a computing device 200 according to some embodiments of the present application. In some embodiments, the server 105, storage 107, and/or output 109 of fig. 1 may be implemented on the computing device 200. For example, the server 105 may be implemented on the computing device 200 and configured to perform the functions of the server 105 described herein. In some embodiments, the computing device 200 may be a special purpose computer, and for ease of description only one server is depicted in FIG. 1, it being understood by those of ordinary skill in the art that computing functionality associated with physiological parameter measurements may also be implemented on multiple computing devices with similar functionality to spread the computational load.

Computing device 200 may include a communication port 201, a processor (CPU) 203, a memory device 205, and a bus 207. The communication port 201 is configured to exchange data with other devices through a network. The processor 203 is configured to perform data processing. The storage device 205 is configured to store data and instructions, and the storage device 205 may be a read-only storage device ROM, a random access storage device RAM, a hard Disk, or other storage devices in various forms. Bus 207 is configured to communicate data internally to and from computing device 200. In some embodiments, the computing device 200 may also include an input-output port 209, the input-output port 209 configured to support data input and output. For example, other personnel may input data to the computing device 200 through the input/output port 209 using an input device (e.g., a keyboard). Computing device 200 may also output data to an output device, such as a display or the like, via input/output port 209.

It should be understood that only one processor 203 is described herein for ease of description, it should be understood that the computing device 200 may include multiple processors, and that operations or methods performed by one processor 203 may be performed by multiple processors, either jointly or separately. For example, one processor 203 described herein may perform steps a and B, it being understood that steps a and B may be performed jointly or separately by a plurality of processors, such as a first processor performing step a and a second processor performing step B, or a first processor and a second processor performing step a and step B together.

FIG. 3 is a schematic diagram of a sensing device 300 according to some embodiments of the present application. As shown in fig. 3, the sensing device 300 of the present embodiment may include two layers, and the first layer may be a first sensor array 301. The first sensor array 301 may include a plurality of optical fiber sensors 3011 configured to be placed under a lying subject and acquire vibration information of the lying subject. The shape of the optical fiber sensor 3011 may be different shapes according to different requirements, such as a rectangular parallelepiped, a cube, a circle, and the like, and the distribution form thereof may also be adjusted according to requirements, which is not limited herein. The vibration information includes at least one of vibration caused by respiration, vibration caused by systolic relaxation, vibration caused by pulse wave conduction, or human body movement. The second layer may be a second sensor array 303. The second sensor array 303 may include a pressure sensor, a fiber optic sensor, a velocity sensor, an acceleration sensor, a displacement sensor, a temperature sensor, a photoelectric sensor, and/or an infrared sensor 3031, and the like, configured to acquire sensing information of the lying subject. The sensing information includes pressure information, strain information, velocity information, acceleration information, displacement information, temperature information, reflected light information, and/or infrared radiation information. The shape of the sensor 3031 may be different shapes according to different requirements, such as a rectangular parallelepiped, a square, a circle, and the like, and the distribution form thereof may also be adjusted according to requirements, which is not limited herein. In this embodiment, the first sensor array 301 and the second sensor array 303 are at least partially overlapped, and a corresponding relationship between the first sensor array 301 and the second sensor array 303 may be established in the processor 203 according to a position relationship between the sensors in the first sensor array 301 and the sensors in the second sensor array 303, so as to correspond the position information acquired by the second sensor array 303 to the vibration information acquired by the first sensor array 301.

FIG. 4 is a schematic diagram of a fiber optic sensing device 400 according to some embodiments of the present application. As shown in fig. 4, the optical fiber sensing device 400 is a strain sensor, when an external force is applied to the optical fiber sensing device 400, for example, when the optical fiber sensing device 400 is placed under a lying human body, when a subject is in a resting state, the human body may vibrate due to respiration, heartbeat, etc., the human body may vibrate, the human body may cause bending of the optical fiber 501, and the optical fiber bending may change parameters of light passing through the optical fiber, for example, light intensity. The change in light intensity can be processed to characterize body vibrations of the human body. In some embodiments, the fiber optic sensors 3011 and/or 3031 in the first sensor array 301 and/or the second sensor array 303 shown in fig. 3 may employ the structure of the fiber optic sensing apparatus 400.

The fiber optic sensing device 400 may include an optical fiber 401, a mesh layer 403, an upper cover 407, and a lower cover 405. Wherein one end of the optical fiber 401 is connected to the light source 409, the light source 409 may be an LED light source, the light source 409 is connected to the light source driver 411, and the light source driver 411 is configured to control the switching and energy level of the light source. The other end of the optical fiber 401 is connected to a receiver 413, the receiver 413 is configured to receive the optical signal transmitted through the optical fiber 401, the receiver 413 is connected to an amplifier 415, the amplifier 415 is connected to an analog-to-digital converter 417, and the analog-to-digital converter 417 can perform analog-to-digital conversion on the received optical signal to convert the received optical signal into a digital signal. The light source driver 411 and the analog-to-digital converter 417 are connected to the control processing module 419. The control processing module 419 is configured to perform signal control and signal processing, for example, the control processing module 419 may control the light source driver 411 to operate to drive the light source 409 to emit light, and the control processing module 419 may further receive data from the analog-to-digital converter 417, and process the data to make the data meet the requirements of various wireless or wired network data transmission, so as to transmit the data to other devices, such as the server 105, the storage device 107, and/or the output device 109 in fig. 1 through a wireless or wired network. The control processing module 419 may also control the sampling rate of the analog-to-digital converter 417 to have different sampling rates according to different requirements. In some embodiments, the light source driver 411, the receiver 413, the amplifier 415, the analog-to-digital converter 417, and the control processing module 419 may be implemented in combination as one module to perform all functions.

The optical fiber 401 may be a multimode optical fiber and may be a single mode optical fiber. The arrangement of the optical fibers may be of different shapes, such as a serpentine configuration, shown as 401 in FIG. 4. In some embodiments, the optical fibers 401 may also be arranged in a U-shaped configuration. In some embodiments, the arrangement of the optical fibers 401 may also be a ring structure formed of a plurality of equally sized rings arranged in a plane, as shown at 421, wherein each ring within the ring structure overlaps and is laterally offset from an adjacent ring portion. Each fiber loop may form a substantially parallelogram-shaped structure (e.g., rectangle, square, etc.) with rounded edges, without sharp bends. In some embodiments, the looped fiber structure may comprise a circular or elliptical structure. In other embodiments, the ring-like structure may also be formed into an irregular shape without sharp bends.

The mesh layer 403 is composed of any suitable material having a repeating pattern of through-holes, and in some embodiments the mesh is composed of interwoven fibers, such as polymeric, natural, composite, or other fibers. When the optical fiber sensing device 400 is placed under the body of a subject, the subject will apply an external force to the optical fiber sensing device 400, and the mesh layer 403 can disperse the external force that would otherwise be applied to a certain action point on the optical fiber and distribute the external force to the optical fibers around the action point. The optical fiber 401 is slightly bent, so that the parameters (such as light intensity) of the light transmitted by the optical fiber 401 are changed, the receiver 413 can receive the changed light, and the control processing module 419 can process and determine the light change amount. The bending amount of the optical fiber 410 under the application of the external force depends on the external force, the diameter of the optical fiber, the diameter of the mesh fiber and the size of the mesh opening, and by setting different parameter combinations of the diameter of the optical fiber, the diameter of the mesh fiber and the size of the mesh opening, the bending amount of the optical fiber is different when the external force is applied, so that the optical fiber sensing device 500 has different sensitivities to the external force.

The upper cover 407 and the lower cover 405 may be made of a silicone material, and are configured to surround the optical fibers 401 and the mesh layer 403, so as to protect the optical fibers 401 and disperse an external force so that the external force is dispersed along a force application point. The top cover 407, the optical fibers 401, the mesh layer 403, and the bottom cover 405 may be integrally bonded, for example, by a silicone adhesive, so that the optical fiber sensing device 400 forms a piece of sensing mat. The width and/or length of the sensor mat may vary depending on the arrangement of the optical fibers, and when a ring-shaped arrangement is used, the width of the sensor mat may be 6cm or other suitable width above 6cm, such as 8cm, 10cm, 13cm or 15 cm. The length of the sensor mat may vary depending on different usage scenarios and the design of the first/second sensor array, e.g. depending on the arrangement of the sensors in the first sensor array. In some embodiments, the sensor mat may have a thickness of 1mm to 50mm, and preferably, a thickness of 3 mm. In some embodiments, the width and length of the sensor mat may be other dimensions, and different sensor sizes may be selected for different test subjects, for example, the test subjects may be grouped by age, height, and weight, with different groups corresponding to different sensor sizes. In some embodiments, when the optical fiber is in a U-shaped configuration, the width of the sensor mat may also be less than 6cm, for example, 1cm, 2cm, or 4 cm.

In some embodiments, the optical fiber sensing device 400 may further include an outer cover (not shown in fig. 4) that covers the upper cover 407, the mesh layer 403, the optical fibers 401, and the lower cover 405, and the outer cover may be made of a waterproof and oil-proof material, such as a hard plastic. In other embodiments, the optical fiber sensing device 400 may further have a supporting structure (not shown in fig. 4), which may be a rigid structure, such as cardboard, hard plastic plate, wood plate, etc., and the supporting structure may be disposed between the optical fiber 401 and the lower cover 405 to provide support for the optical fiber 401, and when an external force is applied to the optical fiber 401, the supporting structure may cause the deformation of the optical fiber layer to rebound faster and with shorter rebound time, so that the optical fiber layer may capture signals with higher frequency.

FIG. 5 is a schematic diagram of a second sensor array according to some embodiments of the present application. As shown in fig. 5, the second sensor array 500 may include, but is not limited to, a plurality of sensors 501. The sensor 501 may be an infrared sensor. Each infrared sensor may include an infrared radiation receiving unit. The infrared radiation receiving unit is configured to receive infrared radiation of the object under test. In some embodiments, the infrared sensor array further includes a built-in processor configured to receive a signal from each infrared sensor and generate position information of the measured object, wherein the position information is information corresponding to each part of the body of the lying object and each sensor in the second sensor array, and send the position information to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 in a wired or wireless manner. In some embodiments of the present invention, the built-in processor may be further configured to receive signals from each infrared sensor and generate thermal information of the measurand and transmit the thermal information to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 in a wired or wireless manner. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 may further determine the corresponding relationship between each part and/or organ of the body and each infrared sensor according to the thermal information of the measured object. In some embodiments, the infrared sensor array does not have a built-in processor, and the infrared sensor array directly transmits the sensed information to the server 105 shown in FIG. 1 or the computer device 200 shown in FIG. 2. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 is configured to receive information of the infrared sensor array to obtain position information of the measured object and determine the corresponding relation of each part and/or organ of the body and each infrared sensor. Of course, the infrared sensor array may also adopt other suitable infrared sensors in the prior art, as long as it can sense that a human body or other objects are located thereon, and is not limited herein.

As shown in fig. 5, in some embodiments of the invention, sensor 501 may also be a pressure sensor. The pressure sensor may be one or more of a piezoresistive pressure sensor, a capacitive pressure sensor, a resonant pressure sensor, or an optical pressure sensor, and is not limited herein. Each pressure sensor may comprise a pressure sensitive element, such as a diaphragm, for sensing a change in pressure and generating a corresponding deformation, and an electronic/optical element for generating a corresponding electrical/optical signal in dependence on the deformation of the pressure sensitive element. In some embodiments, the pressure sensor array further comprises a built-in processor configured to receive the signal from each pressure sensor and generate position information of the measurand and send the position information to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 in a wired or wireless manner. In some embodiments, the pressure sensor array does not have a built-in processor, and the pressure sensor array directly sends sensed information to the server 105 shown in FIG. 1 or the computer device 200 shown in FIG. 2. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 is configured to receive information of the pressure sensor array to obtain position information of the measured object and determine the corresponding relationship between each part and/or organ of the body and each pressure sensor.

As shown in fig. 5, the sensor 501 may be a temperature sensor. The temperature sensor may be a non-contact temperature sensor that may be used to measure the surface temperature of a supine subject, as well as the temperature distribution of the temperature field. The temperature sensor includes a temperature sensitive element therein for sensing a change in temperature and generating a corresponding change, such as changing a resistance value, changing a size, changing a shape, changing a volume, changing a capacitance, and the like, without limitation. In some embodiments, the temperature sensor array further comprises a built-in processor configured to receive the signal from each temperature sensor and generate position information of the measurand and send the position information to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 in a wired or wireless manner. In some embodiments, the temperature sensor array does not have a built-in processor, and the temperature sensor array directly sends the sensed information to the server 105 shown in FIG. 1 or the computer device 200 shown in FIG. 2. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 is configured to receive information of the temperature sensor array to obtain position information of the measured object and determine the corresponding relationship between each part and/or organ of the body and each temperature sensor. Of course, the temperature sensor array may also adopt other suitable temperature sensors in the prior art, as long as it can sense that a human body or other objects are located thereon, and is not limited herein.

As shown in fig. 5, in some embodiments of the invention, the sensor 501 may also be a photosensor. Each of the photosensors may include a light emitting unit and a light receiving unit. The light emitting unit is configured to emit light to the object to be measured, and the light receiving unit is configured to detect an amount of light reflected from the object to be measured. In some embodiments, the light emitting unit has a light Emitting Diode (ED) for emitting light, and the light receiving unit has a photo resistor (PTR) or a Photo Diode (PD) for detecting the amount of emitted light. In some embodiments, the photosensor array further includes a built-in processor configured to receive signals from each photosensor and generate position information of the measurand and transmit the position information in a wired or wireless manner to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2. In some embodiments of the present invention, the built-in processor may be further configured to receive signals from each of the photosensors and generate position information of the measurand, and transmit the position information to the server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 in a wired or wireless manner. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 may further determine the corresponding relationship between each part and/or organ of the body and each photoelectric sensor according to the position information of the measured object. In some embodiments, the photosensor array does not have a built-in processor, and the photosensor array directly sends sensed information to the server 105 shown in FIG. 1 or the computer device 200 shown in FIG. 2. The server 105 shown in fig. 1 or the computer device 200 shown in fig. 2 is configured to receive information of the photosensors to obtain position information of the measured object and determine the correspondence of each part and/or organ of the body with each photosensor. Of course, the photosensor array may also be other suitable photosensor arrays in the prior art, as long as it can sense that a human body or other objects are located thereon, and is not limited herein.

FIG. 6 is a schematic diagram of a sensing device according to some embodiments of the present application. As shown in fig. 6, in some embodiments, the sensing device 600 may further include a body 601, a first sensor array 603 and a second sensor array 605, the body is used for the subject to lie, for example, the body may be a mat, the mat includes an upper cover and a lower cover, the upper cover and the lower cover are integrated, and the mat may wrap the optical fiber sensor device 400 and the infrared sensor device or the optical fiber sensor device 400 and the pressure sensor device in the space formed by the upper cover and the lower cover and fix the positions thereof. In some embodiments, the fiber optic sensor array forms a first sensor array 603 that acquires vibration information of the lying subject. The array of infrared sensors, the array of pressure sensors, the array of temperature sensors and/or the array of photo sensors form a second sensor array 605 acquiring infrared, pressure, temperature information and/or light information of the lying subject. The first sensor array 603 and the second sensor array 605 are encased within a body. The first sensor array 603 may be located above the second sensor array 605, or may be located below the second sensor array, which is not limited herein. The sensors of the first sensor array 603 correspond to the sensors of the second sensor array 605, for example, the first sensor array 603 and the second sensor array 605 may be disposed on top of each other and at least partially overlap each other, and the relative positions of the sensors of the first sensor array 603 and the sensors of the second sensor array 605 correspond to each other. As shown in fig. 6, the fiber optic sensor 603-1 in the first sensor array 603 may correspond to a temperature, pressure or infrared sensor 605-1, 605-2, 605-3 in the second sensor array 605. The shape and size of the sensing device 600 can be selected according to actual requirements, for example, the sensing device 600 can be a quadrilateral, a circle or other suitable shape. The sensing device 600 can be set to different sizes according to the height of the general crowd, for example, the size suitable for the crowd with the height of 155cm-160cm is S, and the size suitable for the crowd with the height of 161cm-170cm can be increased by a certain distance on the basis of the S, for example, 3 cm. In other embodiments, the first sensor array 603 and the second sensor array 605 are enclosed inside the mat, and in some embodiments, the first sensor array 603 and the second sensor array 605 may be disposed on the same layer, with the sensors being paired to include a first sensor for obtaining vibration information of the lying subject and a second sensor for obtaining light, pressure or infrared information of the lying subject. In some embodiments, each sensor of the first sensor array 603 employs the fiber optic sensor 400 of fig. 4. The fiber 401 may be a serpentine configuration (as shown at 401), a ring configuration (as shown at 421), or a U-shaped configuration. The individual sensors of the second sensor array may be, for example, photosensors, which may be arranged in gaps of various configurations of the fiber optic sensor, such arrangement not affecting the acquisition of vibration information.

It should be understood that the application scenarios of the apparatus, system, and method of the present application are merely examples or embodiments of the present application, and those skilled in the art will be able to apply the present application to other similar scenarios without inventive effort based on these figures. For example, the sensor device 101 may be applied to other scenarios without being limited to the form of the sensors in the optical fiber sensor device 400 and the sensor device 600.

As shown in fig. 6, in order to clearly illustrate the positional relationship of the first sensor array 603 and the second sensor array 605 with each other and with the body 601 in the present application, corresponding coordinates are introduced here into the description. Sensing device 600 can be placed on a bed or directly on a floor, so that the Z-axis represents the direction perpendicular to the ground, the direction away from the ground is the positive direction, the XY plane is parallel to the horizontal plane, the X-axis is along the width of sensing device 600, the Y-axis is along the length of sensing device 600, and origin O is located at the midpoint of an end point edge of sensing device 600. The YZ plane divides the sensing device 600 into left and right portions. Along the Z-axis direction, a relatively up-down direction can be represented.

The body 601 may include an upper cover 611 and a lower cover 613, the upper cover 611 and the lower cover 613 cover the first sensor array 603 and the second sensor array 605, and the upper cover 611 and the lower cover 613 are attached together by a seam or an adhesive. The size of the body 601 may be selected according to the size and height of the subject, for example, the length (along the Y-axis) may be 190cm, and the width may be 85cm, which is suitable for most people, and may be other suitable sizes, which is not limited herein. The upper cover 611 and the lower cover 613 may be made of various materials, such as leather, cotton, etc.

The first sensor array 603 may be slightly smaller than the size of the body 601 so as to be housed within the body 601. The first sensor array 603 may be a fiber optic sensor and may be configured as shown in fig. 4. In some embodiments, as shown in fig. 6, the length (along the X axis) of the first sensor array 603 may be selected according to the test object, for example, 180cm, and is suitable for most people, and the width (along the Y axis) may be selected according to the test object, for example, 80cm, and is suitable for most people, and may be other suitable sizes, and is not limited herein. When the subject lies supine on the sensing device 600, the left and right body portions are generally symmetrical along the Y-axis, however, the subject may freely lie on the sensing device 600, change a comfortable position, and also perform certain movements on the sensing device 600. The first sensor array 603 is configured to acquire vibration information of the object.

The second sensor array 605 may be slightly smaller than the size of the body 601 so as to be encased within the body 601. The second sensor array 605 may be a photo sensor, a temperature sensor, an infrared sensor, or a pressure sensor, and may employ a structure as shown in fig. 5. In some embodiments, as shown in fig. 6, the length (along the X axis) of the second sensor array 605 may be selected according to the test subject, such as 180cm for most people, and the width (along the Y axis) may be selected according to the test subject, such as 80cm for most people, and other suitable dimensions, and is not limited herein. In some embodiments, the second tier sensor array 605 may be sized to coincide with the first tier sensor array 603. When the subject lies supine on the sensing device 600, the left and right body portions are generally symmetrical along the Y-axis, however, the subject may freely lie on the sensing device 600, change a comfortable position, and also perform certain movements on the sensing device 600. The second sensor array 605 is configured to acquire sensing information of the object, such as light information, temperature information, infrared radiation information, pressure information, or the like.

In some embodiments, the sensing device 600 may further include a support plate (not shown). The support plate is configured to provide support for the first sensor array 603 and the second fiber sensor array 605, and may be configured to be disposed under the first sensor array 603 and the second sensor array 605, and encased within the body 601 together with the first fiber sensor array 603 and the second fiber sensor array 605. The support plate may be of rigid construction, such as wood, PVC, or the like.

FIG. 7 is a flow chart of a method of measuring a physiological parameter according to some embodiments of the present application. In some embodiments, the method 700 may be implemented by the physiological parameter measurement system 100 shown in fig. 1. For example, the method 700 may be stored in the storage 107 as a set of instructions and executed by the server 105, which server 105 may implement on the computing device 200.

At step 711, the processor 203 may acquire vibration information of the lying subject from a first sensor array configured to be placed under the body of the lying subject. In some embodiments, the lying subject can be a hospital patient or a caretaker, etc., the lying subject can freely change comfortable postures such as lying on the back, lying on the side, lying on the stomach, etc., and the extendable legs can also curl the legs to lie on the sensing device 300. The first sensor array may be the optical fiber sensors 603 in the sensing device 600, and the optical fiber sensors 603 may be distributed on the mat to monitor vibration information of any part of the body. The vibration information of the lying subject may include: the human body vibration information caused by respiration, the human body vibration information caused by cardiac contraction and relaxation, the human body vibration information caused by vascular deformation and the body movement information of the human body. The human body vibration caused by the systolic relaxation can include the human body vibration caused by the systolic relaxation and the human body vibration caused by the blood flow caused by the systolic relaxation, for example, the human body vibration caused by the blood impact on the aortic arch caused by the cardiac ejection. The human body vibration caused by the blood vessel deformation can be human body vibration caused by the conduction of the pulse wave along the blood vessel, wherein the pulse wave is formed by the expansion of the aorta wall caused by the blood ejection of the heart. The body movement information of the human body can comprise leg bending, leg lifting, turning, shaking and the like. Specifically, when a human body breathes, the whole body, particularly a body part mainly including a thoracic cavity and an abdominal cavity, can be driven to vibrate rhythmically, the systolic and diastolic of the human body can also drive the whole body, particularly the body around the heart, the aortic arch can be impacted by blood at the moment when the left ventricle ejects blood to the aorta, the heart and a large blood vessel part connected with the heart as a whole can also move in a series, the vibration of the body part farther away from the heart can be weaker, the body part where the blood vessel is located can vibrate due to the propagation of pulse waves along the blood vessel, and the thinner the blood vessel and the farther the centrifugal heart are, the weaker the body vibration at the position can be. Therefore, when the sensor is located under different positions of the human body, the vibration information obtained by the sensor is the human body vibration information detected at the position, and the human body vibration information obtained when the positions are different is also different.

In step 713, the processor 203 may obtain sensing information of the lying object from the second sensor array, and generate position information of the lying object according to the sensing information, where the sensing information is different information that the second sensor array can sense according to different types of sensors, such as pressure information and deformation information sensed by the pressure sensor, strain information sensed by the strain sensor, speed information sensed by the speed sensor, acceleration information sensed by the acceleration sensor, displacement information sensed by the displacement sensor, temperature information sensed by the temperature sensor, reflected light information sensed by the photoelectric sensor, and/or heat radiation information sensed by the infrared sensor. The position information is information corresponding to each part of the body of the lying subject and each sensor in the second sensor array. In some embodiments, the position information may be a body contour map of the lying subject, wherein body contour refers to the outer edges of the body, including at least the limbs, torso and head. When the lying object is in different lying positions, the body contour map is also changed correspondingly. The second sensor array is configured to be placed under the body of the lying subject. In some embodiments, the second sensor array may be a temperature sensor, a photoelectric sensor, an infrared sensor or a pressure sensor in the sensing device 500, and the temperature sensor, the photoelectric sensor, the infrared sensor or the pressure sensor may be distributed on the mat to identify the body contour map in different postures.

In step 715, the processor 403 may determine a corresponding relationship between each part of the body of the lying subject and the vibration information according to the position information and the oscillation information. In some embodiments, the processor 403 may first associate the first sensor array with the second sensor array one by one, so as to automatically identify the vibration information of various parts of the body of the lying subject. In some embodiments of the present invention, the first sensor array and the second sensor array are in an up-down relative position, and the sensors located above and the sensors located below may be in a one-to-one correspondence. The processor 403 associates the sensors in the first sensor array with the sensors in the second sensor array one by one, thereby correlating the position information and the vibration information of each part of the body, and automatically recognizing the vibration information of each part of the body. In some embodiments, the first sensor array and the second sensor array are in the same plane, and at any one position on the plane, the sensors are present in pairs, each pair comprising one first sensor and one second sensor. The processor 403 correlates the two sensors of each pair of sensors to correlate the positional information and the vibration information of the respective body parts, and automatically identifies the vibration information of the respective body parts.

In some embodiments, the correspondence between the sensors in the first sensor array and the sensors in the second sensor array may also be in a one-to-many manner. The first sensor array and the second sensor array may be in a relative position relationship from top to bottom, and one sensor located above or below may correspond to a plurality of sensors located below or above. For example, an upper sensor may have a larger volume and/or area, while a lower sensor may have a smaller volume and/or area, and the upper sensor may correspond to the lower sensors. The first sensor array and the second sensor array may be in the same plane, and may include both a first sensor and a plurality of second sensors in any small area on the plane.

In some embodiments, the correspondence between the sensors in the first sensor array and the sensors in the second sensor array may also be in a many-to-many manner. For example, for vibration information of a first sensor, the processor may determine vibration information of the body/organ by comprehensively considering vibration information of a plurality of sensors around the first sensor. Also, the processor may determine the position information of the measured object at the position by comprehensively considering the sensing information of the plurality of sensors around the second sensor with respect to the sensing information of the second sensor corresponding to the first sensor. Thus, in this case, the first sensor array and the second sensor array are in a many-to-many correspondence.

In some embodiments, the second sensor array is an infrared sensor in the sensing device 500. When the lying object is located on the second sensor array, the processor 203 acquires thermal radiation information from each infrared sensor, and generates position information of the lying object according to the thermal radiation information, thereby determining the corresponding relationship between each part of the body and the infrared sensor.

In some embodiments, the second sensor array is a pressure sensor in the sensing device 500. When the lying object is located on the second sensor array, the processor 203 acquires pressure information from each pressure sensor, and generates a pressure distribution map according to the pressure information, so as to obtain position information of the lying object, and further determine a corresponding relationship between each part of the body and the pressure sensor.

In some embodiments, the second sensor array is a temperature sensor in the sensing device 500. When the lying object is located on the second sensor array, the processor 203 acquires temperature information from each temperature sensor, and generates a temperature distribution map according to the temperature information, so as to obtain the position information of the lying object, and further determine the corresponding relationship between each part of the body and the pressure sensor.

In some embodiments, the second sensor array is a photosensor in the sensing device 500. When the lying object is located on the second sensor array, the processor 203 acquires reflected light information from each of the photosensors, and generates and obtains position information of the lying object according to the reflected light information, thereby determining a correspondence between each part of the body and the photosensor.

It should be noted that the above-mentioned description is only a specific embodiment of the present application and should not be considered as the only embodiment. It will be apparent to persons skilled in the relevant art(s) that, upon attaining an understanding of the contents and principles of the application, may make various modifications and changes in form and detail without departing from the principles and structures of the application, but such modifications and changes are intended to be included within the scope of the appended claims.

Claims

1. A method, comprising:

acquiring vibration information of the lying object from the first sensor array;

acquiring sensing information of the lying object from a second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and

and determining the corresponding relation between each part of the body of the lying object and the vibration information according to the position information and the vibration information.

2. The method of claim 1, wherein the sensed information comprises at least one of pressure information, strain information, velocity information, acceleration information, displacement information, temperature information, reflected light information, or infrared radiation information.

3. The method of claim 1, wherein the first sensor array and/or the second sensor array comprises a plurality of fiber optic sensors, each of the fiber optic sensors comprising:

an optical fiber arranged in a substantially planar configuration;

a light source coupled to one end of the one or more optical fibers;

a receiver coupled to the other end of the one optical fiber and configured to sense a change in light intensity through the optical fiber; and

a mesh layer consisting of a mesh provided with openings, wherein the mesh layer is in contact with the surface of the optical fiber.

4. The method of claim 1, wherein the second sensor array comprises a plurality of pressure sensors, and wherein when the subject is positioned on the second sensor array, the one or more processors acquire pressure information from each of the pressure sensors and generate a pressure profile based on the pressure information to obtain the position information of the subject, thereby determining correspondence information between each part of the body and each sensor in the second sensor array.

5. The method of claim 1, wherein the second sensor array comprises a plurality of infrared sensors, and when the lying object is located on the second sensor array, the one or more processors acquire infrared radiation information from each infrared sensor, and generate position information of the lying object according to the infrared radiation information, thereby determining correspondence between each part of the body and each sensor in the second sensor array.

6. The method according to claim 1, wherein the second sensor array includes a plurality of temperature sensors, and when the lying object is located on the second sensor array, the one or more processors acquire temperature information from the temperature sensors, generate position information of the lying object according to the temperature information, and determine correspondence between each part of the body and each sensor in the second sensor array.

7. The method of claim 3, wherein the first and second sensor arrays are configured to be disposed in a same layer, the first sensor array comprising a plurality of fiber optic sensors, the second sensor array being distributed in gaps in the optical fibers.

8. The method of claim 1, wherein the vibration information comprises at least one of respiration-induced vibration, systolic-diastolic-induced vibration, pulse-wave-conduction-induced vibration, or body movement of a human.

9. A system, comprising:

a first sensor array configured to be placed below a lying subject, acquiring vibration information of the lying subject;

the second sensor array is configured to be arranged below the lying object and used for acquiring the sensing information of the lying object;

one or more processors; and

one or more storage devices storing instructions that, when executed by the one or more processors, implement the method of any one of claims 1-8.

10. An apparatus, comprising:

the body is used for a lying object to lie, and comprises an upper cover and a lower cover;

a first sensor array configured to be placed below a lying subject, acquiring vibration information of the lying subject; and

wherein the upper cover and the lower cover enclose the first sensor array and the second sensor array therein.

11. The apparatus of claim 10, wherein the sensed information comprises at least one of pressure information, strain information, velocity information, acceleration information, displacement information, temperature information, reflected light information, or infrared radiation information.

12. The apparatus of claim 10, further comprising one or more processors, and one or more storage devices storing instructions that when executed by the one or more processors perform the following:

acquiring sensing information of the lying object from the second sensor array, and generating position information of the lying object according to the sensing information, wherein the position information is corresponding information of each part of the body of the lying object and each sensor in the second sensor array; and

13. The apparatus of claim 10, wherein the second sensor array comprises a plurality of pressure sensors, and wherein when the subject is positioned on the second sensor array, the one or more processors acquire pressure information from each of the pressure sensors and generate a pressure profile based on the pressure information to obtain positional information of the subject, thereby determining correspondence between each of the parts of the body and each of the sensors in the second sensor array.

14. The apparatus of claim 10, wherein the second sensor array comprises a plurality of infrared sensors, and when the lying object is located on the second sensor array, the one or more processors acquire infrared radiation information from each infrared sensor, and generate position information of the lying object according to the infrared radiation information, thereby determining correspondence between each part of the body and each sensor in the second sensor array.

15. The apparatus according to claim 10, wherein the second sensor array includes a plurality of temperature sensors, and when the lying subject is located on the second sensor array, the one or more processors acquire temperature information from the temperature sensors, generate positional information of the lying subject based on the temperature information, and determine correspondence between the respective parts of the body and the respective sensors in the second sensor array.