CN106937808A - A kind of data collecting system of intelligent mattress - Google Patents

A kind of data collecting system of intelligent mattress Download PDF

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Publication number
CN106937808A
CN106937808A CN201710235987.9A CN201710235987A CN106937808A CN 106937808 A CN106937808 A CN 106937808A CN 201710235987 A CN201710235987 A CN 201710235987A CN 106937808 A CN106937808 A CN 106937808A
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China
Prior art keywords
user
signal
data
acquisition
intelligent
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CN201710235987.9A
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Chinese (zh)
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CN106937808B (en
Inventor
刘新宇
郭延锐
姚小慧
张永钦
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Shenzhen Feizhi Health Internet Of Things Technology Co ltd
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Foshan Measurement Technology Co Ltd
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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording 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, mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4812—Detecting sleep stages or cycles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4815—Sleep quality
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6891—Furniture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The present invention relates to a kind of data collecting system of intelligent mattress, the data collecting system of intelligent mattress at least includes being arranged at the data acquisition unit with multiple acquisition channels on intelligent mattress and the intelligent terminal with data acquisition unit progress data interaction, wherein, the data collecting system of intelligent mattress is based on to having used the user of intelligent mattress classification to select the acquisition channel for gathering user's physiological signal, data acquisition unit sends the intelligent terminal near mattress specified to user and/or intelligent through communicator after the physiological signal gathered is converted into AD magnitudes of voltage by A/D converters and AD magnitudes of voltage are pre-processed, and intelligent terminal is by filtering out physiological signal that the acquisition channel that AD magnitudes of voltage after pretreatment meet given threshold is gathered to be calculated to obtain physiological data of the user on intelligent mattress.

Description

A kind of data collecting system of intelligent mattress
Technical field
The present invention relates to Smart Home technical field, the mattress of Intelligent hardware, more particularly to a kind of intelligence are particularly integrated with The data collecting system of energy mattress.
Background technology
Intelligent hardware is the core content in smart home.And statistics shows, people has 1/3rd time all one's life Tide in bed.Therefore Intelligent hardware and mattress are combined for disease forecasting or monitoring patient body situation right and wrong It is often significant.
In addition, with the arrival of China human mortality aging trend, the health problem of solitary the elderly becomes increasingly conspicuous.Old man is only Special physiological characteristic gives needs especially careful treatment, or even the elderly having needs the moment to note its physiological change and sleep State.Current sleeping position and the method for testing of sleep behavior mainly have the dynamic record map analysis method of polysomnogram writing-method, body and taken the photograph As method.Wherein, although polysomnogram writing-method can obtain the details of Sleep architecture, this method can only be in laboratory It is interior to complete, and need multilead electrode being placed on human body, therefore, there is a certain degree of influence on ortho.The dynamic note of body Record map analysis method is a kind of preferable method for testing specific human body limb action, but in order to obtain comprehensively sleep action row For, it is necessary to body is worn in many places to human body body part moves tape deck, therefore, also a certain degree of shadow can be produced to sleep Ring.Although camera method can test sleeping position and sleep action behavior, this inadequate honor of method on the premise of sleep is not disturbed The privacy of weight subject, meanwhile, also can not accurately test deliberate action behavior and bed clothes cover under action behavior.Prior art The product of intelligent mattress, although the physiological change and sleep state of old man can be monitored, but the accuracy of intelligent mattress is too low, no Effective data can be provided for intelligent domestic system and support the prompt message of mistake usually occur.
In order to solve the above-mentioned technical problem, Chinese patent (notification number is CN204654369U) discloses a kind of for being based on The intelligent mattress of Internet of Things.The intelligent mattress based on Internet of Things that is used for of the patent includes mattress, and mattress includes being arranged on mattress Internal some piezoelectric units, piezoelectric unit being arranged on mattress symmetrically, and each piezoelectric unit also includes the 4 of symmetric arrays Individual piezo strip and binding post, piezo strip are connected by electric wire with binding post, the binding post of each piezoelectric unit by electric wire with point Analyse module connection；Analysis module includes point location device, memory, data collector, processor and an acoustical generator, and it is every that point location device, which is used for, Individual piezoelectric unit distributes unique address, and memory is used for the information for storing mattress transmission, and data collector is used for server Information is received or sends, processor is used for the signal for handling each piezoelectric unit, and acoustical generator is used to send alarm or language message.
The intelligent mattress of the patent solves the low technical problem of accuracy of intelligent mattress of the prior art.However, The intelligent mattress of the patent at least also has following technical problem not consider：
(1) signal for gathering piezoelectric unit is used to handle before the signs such as breathing, the heartbeat to obtain user not to adopting The signal of collection is filtered processing, due to the influence of interference signal so that precision of analysis is low, in addition, by several The signal of piezoelectric unit collection is completely used for handling the signs such as breathing, the heartbeat to obtain user, because data processing amount is big, makes Obtain data-handling efficiency low.
(2) in the case of no communication connection, intelligent mattress can not be by the user data upload of collection to intelligent terminal And/or cloud service management system is stored and/or data processing, now tend to cause loss of data, go out in user During existing abnormality, also can not the data based on collection warning reminding is carried out to the abnormality of user.
(3) intelligent bed advance capital for body limited battery capacity, and intelligent mattress and intelligent terminal and/or cloud service management system It is long-term set up communication connection and for a long time in exchange data, will make it that battery power consumption is big, be unfavorable for intelligent mattress it is long when Between keep working condition.
The content of the invention
The defect existed for prior art polysomnogram writing-method, the dynamic record map analysis method of body and camera method, this hair It is bright propose by using physiological signal of the sensor senses user on intelligent mattress and based on the physiological signal collected come Calculate the method for testing of user's sleep behavior of user's physiological data.Adopted invention particularly provides a kind of data of intelligent mattress Sensor is arranged on intelligent mattress by collecting system, the present invention, and so the sleep quality of user will not be had any impact.
Further, the analysis mode of prior art is mostly to enter line number by the way that the data of collection are sent to background server According to analysis to obtain user's sleep quality.The data of collection are sent to background server, because the data of background server are deposited Storage and treating capacity are big, add long distance for data so that data-handling efficiency is slow.Therefore, the invention provides a kind of intelligence The data collecting system of mattress.It is preferred that, the data collecting system of the intelligent mattress at least includes being arranged on intelligent mattress Data acquisition unit and communicator, through the communicator and the data acquisition unit carry out the intelligence of data interaction eventually End.The data acquisition unit with multiple acquisition channels is used for the physiology letter for gathering the user for having used the intelligent mattress Number and the physiological signal gathered is sent near intelligent mattress specified to the user and/or described through the communicator The intelligent terminal.The intelligent terminal meets the life that the acquisition channel of given threshold is gathered by filtering out gathered data Signal is managed to be calculated to obtain physiological data of the user on the intelligent mattress.It is preferred that, effective acquisition channel The physiological signal gathered refers to that physiological signal reaches the physiological signal that the acquisition channel of given threshold is gathered.The present invention The data that are gathered of data acquisition unit and intelligent mattress near intelligent terminal carry out data interaction, solving needs will adopt Collection data send the defect handled to background server.On the other hand, when the present invention calculates user's physiological data, in face of adopting The mass data of collection, by screening method extracted valid data, can not only improve analyze speed, and can also improve the standard of analysis True property.
Further, because Intelligent hardware is when in face of long duration Data Collection task, to Intelligent hardware and and its The intelligent terminal of cooperation proposes the requirement of very high operational capability and memory space.In addition, intelligent bed advance capital for body battery holds Amount is limited, in order to reduce to hardware requirement, also for saving battery electric quantity so that intelligent mattress keeps working condition for a long time, this Invention is proposed based on selecting the scheme of the acquisition channel for gathering the user's body sign to the judgement of user. Preferably, the data acquisition unit has multiple acquisition channels, and the intelligent mattress system is based on to using the intelligent bed The user of pad judges to select the acquisition channel for gathering the user's body sign.When user uses intelligent mattress When, if all acquisition channels open the body sign signal for gathering user, not only result in gathered data amount greatly, cause Data storage and/or analysis efficiency reduction, but also acquisition channel can be caused to waste.These acquisition channels given to this invention Positioned at the different parts of mattress, the sign to gather different body parts.According to the side of being preferable to carry out of the present invention Formula, the sound size that is gathered according to the acquisition channel for head judges the direction of sleep state user's face.Particularly, It is described to be directed to head when another acquisition channel is based on user movement data and judges that dormant user stands up action The acquisition channel in portion is just activated, to pick up corresponding sound and and then judge to stand up action based on the sound wave amplitude received After the completion of user face orientation, wherein, determined based on the data collected by multiple acquisition channels user whether enter fall asleep Dormancy state, and disable acquisition channel back to user's face after user enters deep sleep；And wherein, in base Determine to come into dormant user's generation or will move in the data collected by least one acquisition channel When, activate multiple, especially all acquisition channels.For enter dormant user, towards user at least one Acquisition channel is collected into when substantially having the phase step type change different from average signal level, according to the collection of at least another acquisition channel System determines whether phase step type change is interference noise to verify；If judging the phase step type according at least two acquisition channels Change is derived from this and enters dormant user, then is changed according to the data of multiple acquisition channels come the comprehensive descision phase step type Source, and the signal enlarger of corresponding acquisition channel is activated, while being extracted using bandpass filtering means and preserving the step Formula changes, for hereafter medical diagnosis.
Further, more interference signal is also acquired while data acquisition unit collection user's physiological signal, is The influence of interference signal is removed, is located in advance present invention additionally comprises there is the physiological signal gathered to the data acquisition unit First wave filter of reason, amplifier, the second wave filter.Preferably, the physiological signal of data acquisition unit collection is first converted through A/D Device is converted into AD magnitudes of voltage.The physiological signal of user is carried out after analog-to-digital conversion, is conducive to the data in later stage to calculate.Preferably, Emotionally condition selects first wave filter, the amplifier to body of the data collecting system based on the user of the intelligent mattress Pre-processed with one or more signals to being gathered in second wave filter.Preferably, first wave filter The AD magnitudes of voltage are filtering to signal amplitude less than or equal to 3V, the AD magnitudes of voltage are amplified 0~300 by the amplifier Times, the AD magnitudes of voltage are filtering to signal amplitude less than or equal to 5V by second wave filter.Preferably, the amplification of amplifier Multiple can be adjusted according to different set of the amplitude of filtering signal.For example, the multiplication factor of amplifier can be 80 times, 100 times, 150 times, 170 times, 200 times or 300 times.It is preferred that, the physiological signal of the user's head gathered for acquisition channel, choosing Pretreatment is filtered with first wave filter.The physiological signal on head be, for example, the breath signal of user, sound of snoring signal or Head rotation signal.The present invention after the first filter process, can reduce the influence of interference signal to the head signal of collection, Improve precision of analysis.The user's chest and/or the physiological signal of pulse gathered for acquisition channel, is put from described Big device is amplified pretreatment.The physiological signal of chest is, for example, the heartbeat signal of user.The present invention to the chest of collection and/or After pulse signal is handled through amplifier, collection signal more feature can be made, be easy to find out signature waveform.Amplifier can also be used for Shock conditions to the pregnant woman fetus of collection are amplified.The user's four limbs or the physiology letter at back gathered for acquisition channel Number, it is filtered pretreatment from second wave filter.Four limbs or the physiological signal at back are, for example, moving for user's four limbs Signal.Four limbs or the signal at back are more obvious, the present invention to the four limbs or back signal of collection after the second filter process, Signal filtering to signal amplitude is less than or equal to 5V.By the first wave filter, amplifier, the pretreated AD electricity of the second wave filter Pressure value is raised to more than 0V, is easy to the reading of hardware.
Further, the signal of acquisition channel collection includes heartbeat and breath signal sum, and the heartbeat and Breath signal is modeled using sinusoidal signal, and equation below description is respectively adopted：
Sh(t)=Ah×Sin(2πfh+θh) (1)
Sb(t)=Ab×Sin(2πfb+θb) (2)
S (t)=Sh(t)+Sb(t)+A (3)
Formula (1) and formula (2) they are respectively heartbeat and breathing voltage signal, and formula (3) is the voltage signal that sensor is exported, comprising Heartbeat and breath signal sum, and flip-flop A, wherein, AhAnd AbRespectively heartbeat and the amplitude breathed, fhAnd fbPoint Wei be with heartbeat and the frequency breathed, θhAnd θbRespectively heartbeat and the initial phase breathed.
Further, the intelligent terminal carries out AD turns based on the physiological signal that the effective acquisition channel filtered out is gathered The signal time-domain spectral for changing and being obtained after pre-processing carries out fast Fourier change to obtain signal frequency domain frequency spectrum, default The peak value output of signal frequency domain frequency spectrum in breathing band limits after acquisition processing is described to obtain more than the number of predetermined threshold value The respiratory rate of user, the peak value output of the signal frequency domain frequency spectrum in default heartbeat band limits after acquisition processing exceedes in advance If the number of threshold value is to obtain the palmic rate.Preferably, the default breathing band limits is 0~0.5Hz, described pre- If heartbeat band limits be 0.6~2.7Hz.Preferably, in order to improve computational efficiency, the present invention is using exhaling in calculating 30S Number of times and beats are inhaled to obtain the respiratory rate and palmic rate of user.For example, being computed breathing of the user in 30S time Number is 14 times, and it is 28 beats/min to be multiplied by 2 respiratory rates that can obtain user.
Further, the voltage signal S (t) of the sensor output of acquisition channel Fourier transform formula is as follows：
And the voltage signal S (t) of the sensor output of the acquisition channel can also be indicated with Fourier's change, Representation formula is as follows：
Wherein, formula (4) is Fourier transformation, and formula (5) is Fourier inversion, can be by sensor by Fourier transformation The voltage signal S (t) of output transforms from the time domain to frequency domain to be analyzed.
Further, age of the intelligent mattress system based on the user to having used the intelligent mattress, sex and/ Or the judgement of health to select the acquisition scheme of the user to gather the body sign signal of user, or the intelligence Mattress system gathers user based on the acquisition scheme that the user using the intelligent mattress is inputted by the intelligent terminal Body sign signal.The collection that the acquisition scheme includes but is not limited to be used to gather the user's body sign is led to Road, the intelligent terminal are used for the given threshold, calculative based on the body sign signal for screening effective acquisition channel User's physiological data type.Collection body sign signal is different needed for the user of all ages and classes, sex and/or health, User's acquisition scheme set in advance of with good grounds different demands is prestored in intelligent mattress system, when user uses intelligent bed During pad, by the way that acquisition scheme is selected the preliminary judgement of user, so can not only meet the demand of different user, but also It is avoided that the waste of acquisition channel.
Further, in the case of communicating interrupt or without communication condition, data acquisition unit can not be with intelligent terminal And/or cloud service management system carries out data interaction, in order to avoid loss of data, the data acquisition of intelligent mattress of the invention System also includes temporary storage cell.It is preferred that, each acquisition channel of the data acquisition unit utilizes pressure sensor, humidity One or more sensors in sensor, temperature sensor and heart rate sensor have used the use of the intelligent mattress to gather The physiological signal at family simultaneously stores the physiological signal gathered into the temporary storage cell.The data acquisition unit of the present invention By the data storage of collection local, it is to avoid because of communicating interrupt and caused by loss of data.
Further, relation of the data volume that data acquisition unit is gathered greatly and between data is intricate, in order to Exactly, data storage and/or analysis are rapidly carried out, the physiological signal that the present invention is gathered the data acquisition unit is pressed It is stored according to the related mode of corresponding acquisition channel and acquisition time is provisional in the temporary storage cell.It is described Temporary storage cell can be stored in institute in response to the successful match of the communicator and the intelligent terminal by provisional State the physiology at least gathered by the acquisition channel, the acquisition time and the acquisition channel in temporary storage cell The data acquisition system of signal composition pushes to the intelligent terminal.The present invention using data acquisition system in the form of carry out data storage with/ Or analysis, can not only reduce the computational load of intelligent terminal, and improve storage and/or analysis speed and analysis it is accurate Property, it is ensured that the data collecting system of intelligent mattress can chronically, stably, unimpededly be run, and improve Consumer's Experience.
Further, the storage capacity and data-handling capacity of intelligent terminal are limited, in order to further improve the present invention's Data Analysis Services ability, intelligent mattress system of the invention also includes cloud service management system.On the other hand, intelligent mattress Limited battery capacity itself, and intelligent mattress set up for a long time with intelligent terminal and/or cloud service management system communicate be connected with And data are exchanged in long-time, it will make it that battery power consumption is big, be unfavorable for intelligent mattress and keep working condition for a long time.For This, temporary storage cell of the invention in response to the communicator and the intelligent terminal successful match and by the data Collecting unit is gathered and the provisional data acquisition system being stored in temporary storage cell is pushed to and the intelligent mattress success The intelligent terminal of pairing is simultaneously forwarded to cloud service management system by the intelligent terminal.The cloud service management system Obtain that the data acquisition unit is provisional to be stored in the interim storage in response to the communication connection with the intelligent terminal Data acquisition system in unit.The intelligent mattress of the present invention is in the case of limited battery capacity itself, it is not necessary at any time with intelligence Terminal is communicated, it is only necessary to persistently complete mass data store tasks.The intelligent mattress of the present invention is in regular and intelligent terminal When setting up communication connection, data are exchanged in the short time each other, battery electric quantity can have been saved, effectively extended continuing for intelligent mattress Working time.
Further, when posture of the user on intelligent mattress changes, the data that data acquisition unit is gathered Can accordingly change, be worked and rested in bed with which kind of posture because being difficult to prediction user, be this present invention employs multichannel to Family carries out data acquisition, and the data of multichannel collecting are screened to obtain being most appropriate for the passage of data analysis.It is excellent Choosing, when user's physiological signal change that acquisition channel is gathered reaches given threshold, the intelligent terminal and/or high in the clouds Physiological signal after the change that service management system is gathered based on the acquisition channel is to calculate to obtain the User Status Physiological data after change.When the physiological signal change that the acquisition channel is gathered is not up to given threshold, the intelligence Physiological signal that can be before the change that is gathered based on the acquisition channel of terminal and/or cloud service management system come calculate with Physiological data after changing to the User Status.Cause acquisition channel because changing posture of the user on intelligent mattress The data variation gathered, when change reaches given threshold, chooses the physiological data of the data analysis user after change, so It can ensure that the accuracy of analysis；When change is not up to given threshold, the physiological data of the data analysis user before change is chosen, Can so reduce because of switching channel and caused by loss of data.
Brief description of the drawings
Fig. 1 is the schematic diagram of a preferred embodiment of the data collecting system of intelligent mattress of the invention；
Fig. 2 is the schematic diagram of a preferred embodiment of data acquisition of the present invention；
Fig. 3 is the AD magnitude of voltage curve maps of 6 preferred acquisition channels of embodiment 2；
Fig. 4 is AD magnitude of voltage curve map of the embodiment 2 by pretreated 6 acquisition channels；
Fig. 5 is the AD magnitude of voltage curve maps that embodiment 2 filters out the acquisition channel for breathing judgement；
Fig. 6 is that embodiment 2 is used for the statistical chart that respiratory rate is calculated；
Fig. 7 is the AD magnitude of voltage curve maps that the user of embodiment 2 is in acquisition channel when standing up state；With
Fig. 8 is the AD magnitude of voltage curve maps that the user of embodiment 2 is in acquisition channel during from bed state.
Reference numerals list
10：Intelligent mattress 20：Intelligent terminal
30：Cloud service management system 101：Data acquisition unit
101a：A/D converters 101b：First wave filter
101c：Amplifier 101d：Second wave filter
102：Communicator 103：Temporary storage cell
104：Data processing unit 105：Prewarning unit
106：Image acquisition units
Embodiment
It is described in detail with reference to the accompanying drawings and examples.
Fig. 1 shows the schematic diagram of a preferred embodiment of the data collecting system of intelligent mattress of the invention.Such as Fig. 1 Shown, the data collecting system of intelligent mattress at least includes intelligent mattress 10, intelligent terminal 20 and cloud service management system 30. Intelligent terminal 20 and cloud service management system 30 can carry out data interaction with intelligent mattress 10.Preferably, intelligent mattress 10 with Intelligent terminal 20 and/or the communication mode of cloud service management system 30 include but is not limited to 2G, 3G, 4G, 5G and 3GPP communication. It is preferred that, intelligent terminal 20 includes but is not limited to mobile phone, panel computer and Intelligent bracelet.All may be connected to cloud service management The mobile device of system can be considered intelligent terminal.Referring again to Fig. 1, intelligent mattress 10 at least include data acquisition unit 101, A/D converters 101a, the first wave filter 101b, amplifier 101c, the second wave filter 101d, communicator 102, interim storage list Member 103, data processing unit 104, prewarning unit 105 and image acquisition units 106.Preferably, data acquisition unit 101 is used for Collection has used the physiological signal of the user of intelligent mattress 10 and has converted the physiological signal gathered by A/D converters 101a After being pre-processed for AD magnitudes of voltage and to AD magnitudes of voltage mattress specified to user and/or intelligent is sent through communicator 102 Intelligent terminal 20 near 10.Preferably, the intelligent terminal 20 near intelligent mattress 10, which refers to be attached at, has used the intelligent bed Intelligent terminal 20 with the user of pad 10 or that near-field communication can be carried out with intelligent mattress 10.Intelligent terminal 20 and/or high in the clouds Service management system 30 meets the life that the acquisition channel of given threshold is gathered by filtering out AD magnitudes of voltage after pretreatment Signal is managed to be calculated to obtain physiological data of the user on intelligent mattress 10.
According to a preferred embodiment, before body sign signal acquisition is carried out to user, the data of intelligent mattress Acquisition system selects the acquisition channel for gathering user's body sign based on the judgement to user.Data acquisition unit 101 have the part that user is likely to be exposed on multiple acquisition channels, multiple intelligent mattresses 10 of acquisition channel covering.When user makes During with intelligent mattress 10, age of user, sex and/or health are tentatively judged first, closed by judged result Close unnecessary acquisition channel.For example, when it is baby that the data collecting system of intelligent mattress, which judges user, then intelligent mattress It is all that baby will not touch in sleep to have more acquisition channel on 10, and now the data collecting system of intelligent mattress will The acquisition channel that baby is difficult to touch is closed, and the data collecting system of intelligent mattress is main according to the sleep characteristics of baby Open the acquisition channel that frequency is stood up for gathering baby.Again for example, when the data collecting system of intelligent mattress judges user During for old man, then the acquisition channel for gathering the elderly's breathing and heart rate is mainly opened according to the sleep characteristics of old man.And example Such as, the difference based on adult male and adult female's sleep characteristics, can also set corresponding acquisition scheme.
According to a preferred embodiment, the data collecting system of intelligent mattress can also pass through intelligent terminal based on user The acquisition schemes of 20 inputs gather the body sign signal of user.Preferably, acquisition scheme includes but is not limited to be used to gather The acquisition channel of user's body sign, intelligent terminal 20 are used to screen the given threshold of effective acquisition channel, based on body The calculative user's physiological data type of sign.For there is the user of specific demand, intelligent terminal 20 can also be passed through Input acquisition scheme.For example, for pregnant woman, in order to monitor activity of the fetus at night, can be adopted by the pressure needed for setting Collect passage to gather the Vibration Condition of fetus.The each vibration duration of fetus, vibration number are recorded, so just may be used Obtain situation of the fetus at night.And for example, the crowd for having a heart disease, can gather logical by the heartbeat needed for setting Road gathers the heartbeat situation of user.The each heartbeat abnormal conditions of user are recorded, can be used for aiding in examining for doctor Treat.
According to a preferred embodiment, bluetooth module is provided with communicator 102.Bluetooth module passes through Serial Port Line Uart2 (serial ports 2) is attached with STM32l151 chips.Bluetooth module is provided with packetization module.Packetization module passes through letter of packing Number will need the data sent to be packed according to packing agreement.Bluetooth module sends the data of packing to intelligent terminal 20 Bluetooth communication modules.Wifi configuration information is passed through Bluetooth transmission by intelligent terminal 20 by configuring wifi SSID and password Module is sent to the circuit board or single-chip microcomputer on intelligent mattress 10, and by chip transmitting serial port data configuration wifi module.It is excellent Choosing, wifi module is set on communicator 102.Wifi module is attached by serial ports 3 and stm32L151 chips.wifi Module sends the data of packing to the wireless router being connected with internet.Wireless router sends data to cloud service Management system 30.
Which kind of according to a preferred embodiment, worked and rested because being difficult to prediction user on intelligent mattress 10 with attitude, therefore The present embodiment is acquired by multichannel to the physiological signal of user.If the data that multiple acquisition channels are gathered are completely used for Calculate, can not only increase the computational load of intelligent terminal 20 and/or cloud service management system 30, and computing speed can be reduced Degree.Therefore, the system of intelligent mattress 10 of the present embodiment, which chooses physiological signal, reaches the life that the acquisition channel of given threshold is gathered Signal is managed to be calculated to obtain the physiological data of user.For example, user lies low on intelligent mattress 10, on all passages Sensor starts simultaneously at collection pressure signal change, after (such as 6s) after a while, starts to screen passage, when logical In road gather data less than/be higher than when counting out most of a certain threshold value, select the passage be used for data processing.Preferably, Data acquisition unit 101 has multiple acquisition channels.The distribution mode uniform fold human body of multiple acquisition channels is in intelligent mattress The part being likely to be exposed on 10.Preferably, the intelligent surface of mattress 10 is divided into multiple regions according to rectangular mesh, and each region is all For an identical rectangular shape.Every piece of region all has one or more acquisition channels.
According to a preferred embodiment, each acquisition channel include pressure sensor, humidity sensor, temperature sensor and One or more in heart rate sensor.Preferably, pressure sensor is piezoelectric ceramics sensor, deposition tube resistance sensing One or more in device, capacitance-type pressure sensor and diffused silicon pressure transmitter.Humidity sensor is resistance-type chlorine Change in lithium hygrometer, dew-point lithium chloride hygrometer, carbon wet sensitive formula hygrometer, aluminum oxide hygrometer and Ceramic Humidity Sensor It is one or more.Temperature sensor is contact or contactless thermometer sensor.Heart rate sensor senses for infrared pulse Device, heart rate pulse transducer, photoelectric sphyg sensor, digital pulse transducer, heart sound pulse transducer and integrated pulse are passed One or more in sensor.The data collecting system of the present embodiment intelligence mattress gathers user's physiology number by multiple sensors According to can not only realize the comprehensive monitoring to user's physiology sign, and hand over by the data-signal gathered to multiple sensors Fork is used in combination, and can obtain more accurately state of the user on intelligent mattress 10.
According to a preferred embodiment, the analog signal that A/D converters 101a is used to gather sensor is converted into number Word signal.First wave filter 101a, amplifier 101b, the second wave filter 101c are used for being converted into through A/D converters 101a AD magnitudes of voltage are pre-processed.It is preferred that, the emotionally condition selection the of body of the data collecting system based on the user of intelligent mattress One or more signals to being gathered in one wave filter 101b, amplifier 101c and the second wave filter 101d are located in advance Reason.AD magnitudes of voltage are filtering to signal amplitude less than or equal to 3V by the first wave filter 101b.Amplifier 101c puts AD magnitudes of voltage It is big 0~300 times.AD magnitudes of voltage are filtering to signal amplitude less than or equal to 5V by the second wave filter 101d.It is preferred that, the body of user Emotionally condition refers to the shock conditions at each position of user of acquisition channel collection.E.g., the pulse signal of user not substantially, it is necessary to Pre-processed using amplifier 101b.The breath signal of user is easily influenceed, it is necessary to using the first wave filter by sound of snoring signal 101a is filtered processing.The signal that moves of user's four limbs is difficult to be disturbed by remaining signal, and the second wave filter 101c can be used It is filtered processing.It is preferred that, will by the first wave filter 101a, amplifier 101b, the second wave filter 101c pretreatment before with And pretreated signal is stored in the way of associated, user can be used to check sleep feelings by extracting coherent signal Condition, or by coherent signal for aiding in doctor's diagnosis and treatment.
According to a preferred embodiment, intelligent terminal 20 and/or cloud service management system 30 are based on having for filtering out The signal time-domain spectral that the physiological signal that effect acquisition channel is gathered is AD converted and obtained after pre-processing carries out quick Fu In leaf change to obtain signal frequency domain frequency spectrum, it is default breathing band limits in acquisition processing after signal frequency domain frequency spectrum peak Value output exceedes the number of predetermined threshold value to obtain the respiratory rate of user, in default heartbeat band limits after acquisition processing Signal frequency domain frequency spectrum number of the peak value output more than predetermined threshold value to obtain palmic rate.Preferably, exhaled by human normal No more than 30 beats/min calculating of frequency are inhaled, breathing band limits is set to 0~0.5Hz.It is 40~160 by human heart rate's scope Beat/min calculate, heartbeat band limits is set to 0.6~2.7Hz.
According to a preferred embodiment, in the case of no communication connection, intelligent mattress 10 can not be by the number of collection According to intelligent terminal 20 and/or cloud service management system 30 is uploaded to, in order to avoid loss of data, the intelligent mattress of the present embodiment 10 also include temporary storage cell 103.Intelligent mattress 10 gathers the physiological signal of user by data acquisition unit 101, in intelligence When energy mattress 10 is in off-line state, by the data storage of collection local.Once intelligent mattress 10 is carried out with intelligent terminal 20 Communication, the automatic data that will be stored and/or gather of intelligent mattress 10 are uploaded to intelligent terminal 20.By intelligent terminal 20 by user Physiological signal be uploaded to cloud service management system 30 and stored and/or analyzed.The data of the intelligent mattress of the present embodiment Acquisition system can be monitored to the physiological signal of user in real time, when intelligent mattress 10 is in off-line state, be remained to Several days of storage or even several all data, intelligent mattress 10 are different in user's appearance by being analyzed to the data being locally stored Alarm feedback information is sent when often, it is to avoid can not be to the timely relief of user when fortuitous event occurs.
According to a preferred embodiment, the physiological signal that temporary storage cell 103 is gathered data acquisition unit 101 Stored in the way of corresponding acquisition channel and acquisition time are related.Temporary storage cell 103 can be responded In communicator 102 and intelligent terminal 20 successful match and by storage at least by acquisition channel, acquisition time and collection The data acquisition system for the physiological signal composition that passage is gathered pushes to intelligent terminal 20.Data acquisition system is forwarded to by intelligent terminal 20 Cloud service management system 30.The present embodiment carries out data storage and/or analysis in the form of data acquisition system, can not only drop The computational load of low intelligent terminal 20 and/or cloud service management system 30, and improve the speed of storage and/or analysis and divide The accuracy of analysis, it is ensured that the data collecting system of intelligent mattress can chronically, stably, unimpededly be run, improves user's body Test.
According to a preferred embodiment, the data of each sensor collection of data acquisition unit 101 are with User Status Change and change, when user's physiological signal that acquisition channel is gathered changes and reaches given threshold, intelligent terminal 20 and/or Cloud service management system 30 calculates to obtain User Status change based on the physiological signal after the change that acquisition channel is gathered Physiological data after change.When the change of physiological signal that acquisition channel is gathered is not up to given threshold, intelligent terminal 20 and/ Or cloud service management system 30 calculates to obtain User Status based on the physiological signal before the change that acquisition channel is gathered Physiological data after change.For example, when the sleeping posture of user is changed to left side by lying low, being distributed in certain on intelligent mattress 10 A little passages will produce larger signal intensity, and now system can carry out channel selecting again.Again for example, when user slightly moves During body, the passage for calculating user's physiological data does not produce large change, now switches without passage, is cut with reducing passage The loss of data that tape swapping comes.
According to a preferred embodiment, user's life that data processing unit 104 is gathered based on data acquisition unit 101 The physiological data for the user that reason signal of change is obtained judges state of the user on intelligent mattress 10.The base of data processing unit 104 In the normal physiological for having used the user of intelligent mattress 10 to be provided by intelligent terminal 20 and/or cloud service management system 30 Data area is corrected to condition adjudgement of the user on intelligent mattress 10.The user's physiological data obtained based on calculating, can Tentatively to judge whether user abnormality occurs, such as short time apnea, stand up or from bed.However, different age group There is larger difference in the physiological data of user, if judging the sleep quality of user only in accordance with the physiological data after processing, exist and sentence It is disconnected inaccurate, easily there is the situation of false alarm.Preferably, the normal physiological data area that the present embodiment combination user provides is come State of the correcting user on intelligent mattress 10.By taking heartbeat as an example, the normal heartbeat number of times of different age group user is different, baby Normal heartbeat at 120 beats/min or so, and be grown up heartbeat at 60~80 beats/min or so.Therefore, if using intelligent bed The user of pad 10 is baby, when its beats is 120 beats/min or so, according to adult normal heartbeat scope, easily by its stroke It is divided into and abnormality occurs, causes to analyze mistake.
According to a preferred embodiment, intelligent mattress 10 also includes prewarning unit 105.Preferably, prewarning unit 105 exists The user that the physiological data analysis of intelligent terminal 20 and/or cloud service management system 30 based on the user calculated goes out is in intelligence Can occur sending warning message during abnormality on mattress 10.User occur abnormality be, for example, user's sleep quality not There is disease, user from bed etc. in good, user.Warning message is based on intelligent terminal 20 and/or cloud service management system 30 is analyzed Abnormality that the normal physiological data area of abnormality and combination user of the user gone out on intelligent mattress 10 is divided etc. Level and be divided into different brackets.Warning message is divided into different brackets, and salvor and/or department can be according to different grades of Warning message and take appropriate measures.Preferably, when intelligent mattress 10 is in off-line state, intelligent mattress 10 is based on local State of the user's physiological signal and/or physiological data analysis user of storage on intelligent mattress 10, and there is exception in user When send warning message.
According to a preferred embodiment, intelligent mattress 10 includes image acquisition units 106.Preferably, IMAQ Unit 106 is camera.Preferably, early warning of the image acquisition units 106 based on prewarning unit 105 and/or with having used intelligence Personnel and/or the remote control of department that the user of mattress 10 is associated and start.For example, when sensor collection signal is all returned Zero reaches certain time, such as 10S, and camera can be automatically opened up and is identified, if not finding user, judges user from bed, Otherwise then judge that user is in an emergency, e.g. respiratory arrest or heart arrest.Again for example, when user occurs tossing about in bed state When, judge that user needs observation, cloud service management system 30 will send information to rescue personnel, and rescue personnel can be in intelligence Energy terminal 20 and/or the Remote Open camera of cloud service management system 30 realize that video is observed.
Embodiment 2
The present embodiment is the further improvement to embodiment 1, and only improved part is illustrated.
Fig. 2 shows the schematic diagram of a preferred embodiment of data acquisition of the present invention.As shown in Fig. 2 intelligence Mattress 10 gathers the physiological signal of user by data acquisition unit 101, when intelligent terminal 20 is communicated with intelligent mattress 10, intelligence Can mattress 10 can active transmission storage data to intelligent terminal 20.When intelligent terminal 20 is communicated with cloud service management system 30 When, the user that cloud service management system 30 can receive the physiological signal of user and be inputted beforehand through intelligent terminal 20 Normal physiological data area.Preferably, user can also directly service management system 30 pre-enters the normal of user beyond the clouds Physiological data scope.
Further, intelligent terminal 20 and/or cloud service management system 30 are based on the user's physiological signal meter received Calculate user physiological data and combine user provide normal physiological data area come judge user on intelligent mattress 10 whether There is abnormality.Preferably, intelligent terminal 20 and/or cloud service management system 30 based on the user analyzed in intelligent bed Abnormality is divided into different brackets by the normal physiological data area of abnormality and combination user on pad 10.For example The abnormality grade of user can be divided into poor sleep, prevention from suffering from the diseases, it is necessary to rescue., can be with when user is only upset Judge that health state of user is good, but poor sleep.When the situation of tossing about in bed occurs in user, it is possible to determine that user needs observation.
According to a preferred embodiment, intelligent terminal 20 and/or cloud service management system 30 utilize normalized side Formula tentatively sorts out the physiological data that the user's physiological signal gathered based on data acquisition unit 101 calculates obtained user extremely Sleep quality is not good, needs observation, prevention from suffering from the diseases, need to rescue or from bed state.Preferably, the present embodiment is in the following way The physiological data of user is normalized：The sensor sample physiological signal of n point of user, wherein, n be more than etc. In 1 positive integer.Intelligent terminal 20 and/or cloud service management system 30 calculate the corresponding user's physiology of signal of n point Data, then the ratio that there emerged a physiological data in a n physiological data sums is calculated, produce the physiology number through normalized According to.After physiological data is normalized, can reduce because sensor detect physiological signal error and caused by point Error is analysed, the accuracy of analysis is improved.
Which kind of according to a preferred embodiment, worked and rested in bed with attitude because being difficult to prediction user, so needing to lead to more Road is acquired to the physiological signal of user, and system is by choosing to obtain being most appropriate for the passage of data analysis.Work as user , it is necessary to which corresponding algorithm changes the passage for data processing when changing sleep attitude.Preferably, the present embodiment is used to gather and used The sensor of family physiological signal is piezoelectric ceramics sensor.Preferably, intelligent terminal 20 and/or cloud service management system 30 are logical Cross following manner and judge whether user is in abnormality.
When user is on intelligent mattress 10, the sensor on all passages starts simultaneously at the physiology letter of collection user Number, through after a period of time, such as 6S starts to screen all passages, when the signal gathered in passage is met less than/height In given threshold when counting out most, the passage is selected to be used to data processing obtain the physiological data of user.Preferably, intelligence Can physiological signal based on user of terminal 20 and/or cloud service management system 30 calculate respiratory rate to obtain user and/ Or palmic rate.Preferably, the respiratory rate and/or palmic rate of user is calculated in the following way obtains：Filter out The physiological signal that is gathered of effective acquisition channel be AD converted and the signal time-domain spectral that is obtained after pre-processing carry out it is fast Fast Fourier's change is to obtain signal frequency domain frequency spectrum, the signal frequency domain frequency spectrum in default breathing band limits after acquisition processing Peak value output more than predetermined threshold value number to obtain the respiratory rate of user, in default heartbeat band limits at acquisition The peak value output of signal frequency domain frequency spectrum after reason exceedes the number of predetermined threshold value to obtain palmic rate.Preferably, it is default to exhale Suction band limits is 0~0.5Hz.Default heartbeat band limits is 0.6~2.7Hz.
Preferably, before the user's physiological signal that will be collected carries out Fourier transformation, to choosing what passage was gathered Data carry out AD conversions, filtering clutter, signal amplification, the processing of filtering clutter again.Preferably, piezoelectric ceramics sensor and A/ The 101a connections of D converters.A/D converters 101a is connected with the first wave filter 101b.First wave filter 101b connection amplifiers 101c.Amplifier 101c the second wave filters of connection 101d.Preferably, the first wave filter 101b by AD magnitudes of voltage to be filtering to letter Number amplitude is less than or equal to 3V.Amplifier 101c by the signal after the first wave filter 101b filtering process to amplify 0~300 Times.Second wave filter 101d by the signal filtering after amplifying through amplifier 101c to signal amplitude to be less than or equal to 3V.This User's physiological signal of embodiment collection can filter obvious clutter after the first filter process, and signal passes through amplification again Device and the second filter process, it is possible to increase signal to noise ratio.
According to a preferred embodiment, the palmic rate and/or respiratory rate of user is obtained in the following way.Human body The action of heartbeat and breathing can be considered vibration, is converted to by sensor and vibration signal is similarly after voltage signal, therefore made Heartbeat and breath signal are modeled with sinusoidal signal.Preferably, equation below description is respectively adopted in heartbeat and breath signal：
Sh(t)=Ah×Sin(2πfh+θh) (1)
Sb(t)=Ab×Sin(2πfb+θb) (2)
S (t)=Sh(t)+Sb(t)+A (3)
Formula (1) and formula (2) are respectively heartbeat and breathing voltage signal.Wherein, AhAnd AbRespectively heartbeat and the width breathed Degree.fhAnd fbRespectively with the frequency of heartbeat and breathing.θhAnd θbRespectively heartbeat and the initial phase breathed.Formula (3) is sensing The voltage signal of device output, it contains heartbeat and breath signal sum, it is also possible to can include flip-flop A.
Preferably, heartbeat and breath signal are similar to sine wave signal, therefore are become for the measurement of frequency using Fourier Bring carry out signal transacting.Preferably, the voltage signal S (t) of sensor output Fourier transform formula is as follows：
Same signal S (t) can also be indicated with Fourier's change, and representation formula is as follows：
It can thus be seen that the signal S (t) of the present embodiment can be expressed as different simple signal sums, simple signal Amplitude is the value S (j2 π f) of Fourier transformation.Above-mentioned formula (4) and formula (5) are referred to as Fourier transform pairs, wherein, formula (4) is Fu In leaf transformation, formula (5) be Fourier inversion.Fourier transformation can transform from the time domain to signal frequency domain to be analyzed. The signal exported for sensor, is made up of, corresponding frequency heartbeat signal, three simple signals of breath signal and direct current signal Respectively fh、fbAnd 0Hz.Due to there is multiple frequency contents and plus noise and the influence of interference in time domain, to heartbeat and breathing Frequency is difficult to extract, but is transformed into after frequency domain heartbeat and respiratory rate and interference by Fourier transformation and can separate, therefore can To complete the extraction to heartbeat and respiratory rate.
According to a preferred embodiment, the palmic rate and/or respiratory rate of user is obtained in the following way.In terms of Exemplified by the respiratory rate for calculating user.Fig. 3 shows the AD magnitude of voltage curve maps of 6 preferred acquisition channels of the present embodiment.Such as Fig. 3 Shown, abscissa is the time in figure, and unit is the second, and ordinate counts for A/D converters 101a magnitude of voltage.From top to bottom successively It is acquisition channel 1, acquisition channel 2, acquisition channel 3, acquisition channel 4, acquisition channel 5 and acquisition channel 6.A/D converters 101a It is monitored at interval of the AD magnitudes of voltage that 1 second is converted to pressure data in each signalling channel 30 seconds.The letter of sensor collection Number by the first wave filter 101b, amplifier 101c, the second wave filter 101d pretreatment after complete smothing filtering, to remove signal In noise.Fig. 4 shows that the present embodiment passes through the AD magnitude of voltage curve maps of pretreated 6 acquisition channels.Such as Fig. 4 institutes Show, after Denoising disposal, the waveform of each passage is more obvious, be easy to follow-up calculating.Sensor is in itself due to pressure change The change of voltage can be produced, sensor can produce negative voltage in itself, but because hardware can not read negative value, so being lifted to 0, after the amplification of data acquisition unit and voltage are raised, the change threshold of voltage is raised to (0V ,+3V).Wherein, 2048 Corresponding is 1.5V, 4096 it is corresponding be 3V.Such as 2048 or 4096 etc numerical value meaning is exactly to sense samples number According to the AD magnitudes of voltage after being converted through AD converters 101a.When sensor remains static, system acquisition to voltage be in 1.5V, that is to say near 2048 points.Therefore, the present embodiment chosen from the waveform after Denoising disposal crest or trough away from Passage corresponding from 2048 value maximums is used as the passage for judging breathing.Based on above-mentioned analysis, the present embodiment chooses passage 5 Judge for breathing.Fig. 5 shows that the present embodiment filters out the AD magnitude of voltage curve maps for breathing the acquisition channel judged.Through After amplification, the Wave crest and wave trough of the waveform of passage 5 becomes apparent from.Fig. 6 shows that the present embodiment is used for the statistical chart that respiratory rate is calculated.With 2048 be line, if wearing 2048 on each crest of passage 5, is designated as 1, represents user's breathing once；If under wear 2048, be designated as 0, Represent that user breathes no more.In such a manner, the Respiration Rate in record user 30S, is multiplied by 2 and can obtain per minute exhale Inhale numerical value.The respiratory rate of user shown in Fig. 6 is 14 × 2=28 beats/min.
So that user stands up as an example.When user changes sleeping posture, what the passage being distributed on intelligent mattress 10 was gathered User's physiological signal will produce larger signal intensity, and now system can carry out the selection of effective acquisition channel again.If point User's physiological signal that the passage being distributed on intelligent mattress 10 is gathered does not produce significant change, then switches without passage.It is excellent Selection of land, when user's physiological signal change that acquisition channel is gathered reaches given threshold, intelligent terminal is based on acquisition channel Physiological signal after the change gathered is to calculate to obtain the physiological data after User Status change.Gathered in acquisition channel Physiological signal change be not up to given threshold when, the physiological signal before the change that intelligent terminal is gathered based on acquisition channel To calculate with obtain User Status change after physiological data.
Preferably, in Channel Selection process, all channel sample values and 2048 squared difference in 5 seconds are calculated, to difference Square sequence, selects two maximum passages as currently selected passage, if passage switching represents that object is once stood up. Fig. 7 shows that the present embodiment user is in the AD magnitude of voltage curve maps of acquisition channel when standing up state.As shown in fig. 7, horizontal in figure Coordinate is the time, and unit is the second, and ordinate counts for A/D converter 101a magnitudes of voltage.It is selected passage in dotted line frame, originally 2 passages switch to complete 2 new passages, represent that object is stood up once, contrast actual conditions, there occurs really stand up it is dynamic Make.
So that user is from bed as an example.When user is no longer on intelligent mattress 10, user's physiological signal of sensor collection It can change, when change waveform meets preparatory condition, record user is in from bed state, and records user from bed number of times. Preferably, preparatory condition can be that all the sensors signal for having signal originally is slowly zeroed.From unlike the state of standing up, Change from bed status sensor signal is that the speed being zeroed and all the sensors signal for having signal originally are all zeroed. Preferably, system judges user from bed, if user is the colony that can not take care of oneself, system is reaching certain time length from bed state Afterwards, such as 10 minutes, signal an alert.
Preferably, when the signal for monitoring all passages tends to 2048, that is, it is not detected by physiological signal, then it is assumed that test Object is from bed.Fig. 8 shows that the present embodiment user is in the AD magnitude of voltage curve maps of acquisition channel during from bed state.Such as Fig. 8 institutes Show, abscissa is the time in figure, unit is the second, and ordinate counts for A/D converter 101a magnitudes of voltage.Voltage curve after 7 seconds, All signal values tend to 2048, it is believed that object is from bed.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention scope and fall into this hair Within bright protection domain.It will be understood by those skilled in the art that description of the invention and its accompanying drawing be it is illustrative and not Constitute limitations on claims.Protection scope of the present invention is limited by claim and its equivalent.

Claims (10)

1. a kind of data collecting system of intelligent mattress, especially a kind of number for being used to gather the intelligent mattress of user's physiological data According to acquisition system, it is characterised in that the data collecting system of the intelligent mattress at least includes being arranged on intelligent mattress (10) Data acquisition unit (101) with multiple acquisition channels and data friendship can be carried out with the data acquisition unit (101) Mutual intelligent terminal (20), wherein,
The data collecting system of the intelligent mattress is based on that the user using the intelligent mattress (10) is classified to select to be used for The acquisition channel of user's physiological signal is gathered, the physiological signal gathered is passed through A/D by the data acquisition unit (101) Converter (101a) is sent after being converted into AD magnitudes of voltage and the AD magnitudes of voltage being pre-processed through the communicator (102) The intelligent terminal (20) near intelligent mattress (10) specified to the user and/or described, and the intelligent terminal (20) physiological signal that the acquisition channel of given threshold is gathered is met by filtering out the AD magnitudes of voltage after pretreatment To be analyzed to obtain physiological data of the user on the intelligent mattress (10).
2. the data collecting system of intelligence mattress as claimed in claim 1, it is characterised in that the data of the intelligent mattress are adopted Collecting system also includes the first wave filter pre-processed to the physiological signal that the data acquisition unit (101) is gathered (101b), amplifier (101c) and the second wave filter (101d), and the intelligent mattress data collecting system be based on it is described Emotionally condition selects first wave filter (101b), the amplifier (101c) and second wave filter (101d) to the body of user In one or more signal to being gathered pre-process.
3. the data collecting system of intelligence mattress as claimed in claim 1 or 2, it is characterised in that the acquisition channel collection Signal include heartbeat and breath signal sum, and the heartbeat and breath signal modeled using sinusoidal signal, is adopted respectively Described with equation below：
Sh(t)=Ah×Sin(2πfh+θh) (1)
Sb(t)=Ab×Sin(2πfb+θb) (2)
S (t)=Sh(t)+Sb(t)+A (3)
Formula (1) and formula (2) are respectively heartbeat and breathing voltage signal, and formula (3) is the voltage signal that sensor is exported, and contains the heart Jump and breath signal sum, and flip-flop A, wherein,
AhAnd AbRespectively heartbeat and the amplitude breathed, fhAnd fbRespectively with the frequency of heartbeat and breathing, θhAnd θbThe respectively heart The initial phase jumped and breathed.
4. the data collecting system of intelligence mattress as claimed in claim 1 or 2, it is characterised in that the intelligent terminal (20) The signal time domain that the physiological signal gathered based on the effective acquisition channel filtered out is obtained after being AD converted and pre-processing Frequency spectrum carries out fast Fourier change to obtain signal frequency domain frequency spectrum, the letter in default breathing band limits after acquisition processing Number of the peak value output more than predetermined threshold value of number frequency-domain spectrum is to obtain the respiratory rate of the user, in default heartbeat frequently The peak value output of signal frequency domain frequency spectrum in segment limit after acquisition processing exceedes the number of predetermined threshold value to obtain the heartbeat frequently Rate, wherein, the default breathing band limits is 0~0.5Hz, and the default heartbeat band limits is 0.6~2.7Hz.
5. the data collecting system of the intelligent mattress as described in one of preceding claims, it is characterised in that the acquisition channel Sensor output voltage signal S (t) Fourier transform formula it is as follows：
S ( j 2 π f ) = ∫ - ∞ + ∞ S ( t ) e - j 2 π f t d t - - - ( 4 )
And the voltage signal S (t) of the sensor output of the acquisition channel can also be indicated with Fourier's change, be represented Formula is as follows：
S ( t ) = ∫ - ∞ + ∞ S ( j 2 π f ) e j 2 π f t d f - - - ( 5 )
Wherein, formula (4) is Fourier transformation, and formula (5) is Fourier inversion, can be exported sensor by Fourier transformation Voltage signal S (t) frequency domain is transformed from the time domain to be analyzed.
6. the data collecting system of the intelligent mattress as described in one of preceding claims, it is characterised in that the intelligent mattress Data collecting system be based on to the judgement using age of user of the intelligent mattress (10), sex and/or health To select the acquisition scheme of the user to gather the body sign signal of user, or the intelligent mattress data acquisition system System gathers use based on the acquisition scheme for having used the user of the intelligent mattress (10) to be inputted by the intelligent terminal (20) The body sign signal at family, wherein,
The acquisition scheme is including but not limited to used to gather the acquisition channel of the user's body sign, the intelligence eventually End (20) is used to screen the given threshold of effective acquisition channel, based on the calculative user's physiology number of the body sign signal According to type.
7. the data collecting system of the intelligent mattress as described in one of preceding claims, it is characterised in that the intelligent mattress Data collecting system also include temporary storage cell (103), each acquisition channel of the data acquisition unit (101) utilizes pressure One or more sensors in force snesor, humidity sensor, temperature sensor and heart rate sensor have used institute to gather State the physiological signal of the user of intelligent mattress (10) and by the physiological signal gathered according to corresponding acquisition channel and The related mode of acquisition time is stored into the temporary storage cell (103).
8. the data collecting system of intelligence mattress as claimed in claim 7, it is characterised in that the temporary storage cell (103) can in response to the communicator (102) and the intelligent terminal (20) successful match and be stored in provisional At least being adopted by the acquisition channel, the acquisition time and the acquisition channel in the temporary storage cell (103) The data acquisition system of the physiological signal composition of collection pushes to the intelligent terminal (20),
Wherein,
The intelligent terminal (20) meets the collection of given threshold self by the AD magnitudes of voltage after pretreatment are filtered out The physiological signal that passage is gathered is to be calculated to obtain physiological data of the user on the intelligent mattress (10)；Or The data acquisition system is forwarded to cloud service management system (30), the cloud service management system by intelligent terminal described in person (20) System (30) is believed by filtering out the physiology that the acquisition channel that the AD magnitudes of voltage after pretreatment meet given threshold is gathered Number to be analyzed to obtain physiological data of the user on the intelligent mattress (10).
9. the data collecting system of the intelligent mattress as described in one of preceding claims, it is characterised in that the intelligent mattress The data collecting system contrast of physiological signal that is gathered based at least two acquisition channels determine that the user ought be above The direction in portion, and each acquisition channel of the user's face, back and belly is closed on based on the direction respectively to activate,
Wherein, when the signal that each acquisition channel for closing on the user's face, back and belly respectively is gathered exceedes spy When determining threshold value and can interpolate that the user does not carry out standing up action based on other acquisition channels, the data collecting system The amplifier (101c) of the data acquisition unit (101) is activated, targetedly to amplify signal intensity amplitude maximum The physiological signal of acquisition channel thereafter in the time, while the data collecting system activates the data acquisition unit (101) Signal of first, second wave filter (101b, 101d) to suppress other two acquisition channels.
10. the data collecting system of the intelligent mattress as described in one of preceding claims, it is characterised in that the user is in institute State user's physiological signal change that the state on intelligent mattress (10) is changed and the acquisition channel is gathered and reach setting When threshold value, the change that the intelligent terminal (20) and/or cloud service management system (30) are gathered based on the acquisition channel Physiological signal after change is to calculate to obtain the physiological data after the User Status change；
Or, the physiology that state of the user on the intelligent mattress (10) is changed and the acquisition channel is gathered When signal intensity is not up to given threshold, the intelligent terminal (20) and/or cloud service management system (30) are based on described Physiological signal before the change that acquisition channel is gathered is to calculate to obtain the physiological data after the User Status change.
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