CN206792398U - Blood pressure detector - Google Patents
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- CN206792398U CN206792398U CN201720072716.1U CN201720072716U CN206792398U CN 206792398 U CN206792398 U CN 206792398U CN 201720072716 U CN201720072716 U CN 201720072716U CN 206792398 U CN206792398 U CN 206792398U
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Abstract
Present disclose provides a kind of blood pressure detector, including electrocardio signal collecting unit, pulse wave signal collecting unit, multi signal collector unit, synchronization signal unit and signal processing unit.The multi signal collector unit collects electrocardiosignal and pulse wave signal.The synchronization signal unit generates synchronizing signal and the synchronizing signal is sent into the electrocardio signal collecting unit, the pulse wave signal collecting unit and multi signal collector unit simultaneously.Synchronizing signal is encoded on gathered signal by the electrocardio signal collecting unit and the pulse wave signal collecting unit.The multi signal collector unit synchronizes processing based on received synchronizing signal to collected signal.The signal processing unit goes out the blood pressure of user based on synchronous electrocardiosignal and pulse wave signal Continuous plus.
Description
Technical field
This disclosure relates to a kind of blood pressure detector and blood pressure detecting method, more particularly to a kind of noninvasive continuous detection blood pressure
System and method.
Background technology
With social life increasingly fast pace, health of people problem is more prominent, cardiovascular and cerebrovascular, hypertension chronic diseases
Already turn into human health killer, or even disease caused by these improper blood pressures also increasingly annoyings young man.Therefore, side
Easy health care settings turn into the active demand of society.Blood pressure detectors especially a kind of portable or suitable for family expenses
Have become needed for the detection of people's routine health.
Originally, people are to wrap compression band on upper arm (top of arm) using blood vessel sound stethoscopy detection blood pressure
Afterwards press air pressure and by stethoscope come the method for auscultation blood vessel sound, it is necessary to measure blood pressure by blood vessel sound.But this need by
The medical personnel for crossing training perform, and common people are difficult to measure blood pressure.
With the development of electronic technology, electronic sphygmomanometer measures blood pressure for people and provided conveniently at home.But electronics
Sphygmomanometer is also required to press to arm using compression band, is still inconvenienced user.It also can not continuously measure blood simultaneously
Pressure.With the fast development of health medical treatment technology, there has been proposed a kind of emerging technology to measure the real-time continuous pressure value of human body,
The real-time pressure value of human body is calculated by calculating the conduction time of electrocardiosignal and pulse wave signal poor (PTT).Pass through analysis
Core signal ECG and photoplethysmographic trace signal PPG, the characteristic value point and photocapacitance of core signal ECG are obtained respectively
Product pulse tracing signal PPG, and then the pulse wave transmission time PTT between 2 characteristic value points is obtained, transmitted using pulse wave
Linear relationship between time and blood pressure parameter, obtain blood pressure parameter BP.The technology need accurate measurement human ecg signal and
Conduction time between blood oxygen signal is poor (PTT), when electrocardiosignal and blood oxygen signal detect in same circuit board, two kinds
The collection of signal is easily synchronous, and calculating PTT can be easier.Therefore, generally for the accurate PTT of acquisition, it is necessary to so that electrocardio
The collection and processing of signal and pulse wave signal are carried out simultaneously on same circuit board, so as to core signal ECG and photoelectricity volume
Pulse tracing signal PPG synchronizes processing.However, this existing acquisition system to user have greatly it is bound.But
It is to eliminate this constraint, when electrocardiosignal and blood oxygen signal carry out independent acquisition between various boards, due to two
Unit is in various boards, therefore, result in the misalignment on a timeline of gathered signal, electrocardiosignal and blood oxygen signal
It is asynchronous PTT results can be caused to produce larger error, therefore cause the result of calculation of blood pressure inaccurate.And at this separation
The measurement result of the mode of reason can not also be converted to the electronic data of unified form, it is impossible to be reached by easily networking solutions
Cloud database is stored and further analyzed and processed.
The content of the invention
In order to solve above mentioned problem of the prior art, according to the disclosure, it is proposed that a kind of blood pressure detector, including the heart
Electrical signal collection unit, pulse wave signal collecting unit, multi signal collector unit, synchronization signal unit and signal transacting list
Member, it is characterised in that electrocardio signal collecting unit and the pulse wave signal collecting unit is collected with the multi signal respectively
Unit is connected to collect the signal come from the electrocardio signal collecting unit and pulse wave signal collecting unit transmission, institute
State synchronization signal unit generation synchronizing signal and by the synchronizing signal generated and meanwhile be sent to the electrocardio signal collecting unit,
The pulse wave signal collecting unit and multi signal collector unit, so as to the electrocardio signal collecting unit and the pulse wave
Signal gathering unit is encoded to received synchronizing signal on gathered signal and the multi signal collector unit base
Synchronize processing to collected signal in received synchronizing signal, and the signal processing unit with it is described more
Signal collection unit is connected to receive the synchronous electrocardiosignal and pulse wave signal that are sent from the multi signal collector unit,
And go out the blood pressure of user based on received electrocardiosignal and pulse wave signal Continuous plus.
According to the blood pressure detector of the disclosure, the synchronization signal unit generates simultaneously with frequency at regular intervals
Send the synchronizing signal.
According to the blood pressure detector of the disclosure, wherein the timestamp is a synchronization frame for representing numbering, represents to work as
The synchronization frame of preceding time, or the synchronization frame comprising numbering and current time.
According to the blood pressure detector of the disclosure, the frequency that the synchronizing signal is sent is a timestamp per second, each
Cycle sends four timestamps.It is described that received synchronizing signal is encoded to institute according to the blood pressure detector of the disclosure
The signal of collection includes the bag that received timestamp is added to all signal data bags gathered in the timestamp
Head, to identify the acquisition time scope of the packet.
According to the blood pressure detector of the disclosure, the signal processing unit also includes checking identification generation unit and signal
Transmitting element, the checking identification generation unit generates checking mark at random and the signal transmitting unit is tested what is generated
Other independent Component units that card mark is sent in the blood pressure detector, so as to prevent the crosstalk between different system.
According to the blood pressure detector of the disclosure, the checking is identified as a random MAC address and a working frequency range.
According to the blood pressure detector of the disclosure, the pulse wave signal collecting unit is radio blood oxygen collecting unit, its
Communication is carried out by Blue-tooth communication method with the signal collection unit to be connected.
According to the blood pressure detector of the disclosure, the electrocardio signal collecting unit is the electrocardio with electrocardiogram acquisition circuit
Signal gathering unit, the electrocardio signal collecting unit are directly connected to the signal collection unit by signal wire.
According to the blood pressure detector of the disclosure, the electrocardio signal collecting unit pastes for wireless chest electrode, and it passes through indigo plant
Tooth communication mode carries out communication with the signal collection unit and is connected.
According to the blood pressure detector of the disclosure, the signal processing unit based on received synchronizing signal decoding from
The multi signal collector unit.
The disclosure realizes the synchronization process between electrocardiosignal and blood oxygen signal by a kind of special synchronization mechanism, especially
It is it is pointed out that the disclosure can realize the synchronization process between multichannel electrocardiosignal and blood oxygen signal.
The blood pressure detector and mode of the disclosure can obtain human ecg signal by two methods, first, placing
Signal acquisition box and electrocardio signal collecting unit and nightwear acquisition human ecg signal on electrocardio signal collecting unit, two
It is to obtain electrocardiosignal by being attached to the chest electrode piece (PATCH) of human body front.The disclosure is visited by the blood oxygen being worn on finger
Head and the blood oxygen collecting cassette that is worn in wrist realize the measurement of human body blood oxygen saturation and pulse frequency.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
The block schematic diagram of the embodiment of the blood pressure detector according to the disclosure shown in Fig. 1.
Ecg signal acquiring mattress electrode schematic diagram used in the blood pressure detector according to the disclosure shown in Fig. 2.
The running schematic diagram of the embodiment of the blood pressure detector according to the disclosure shown in Fig. 3.
Shown in Fig. 4 is the schematic diagram that signal synchronization process is acquired according to the blood pressure detector of the disclosure.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
It is only merely for the purpose of description specific embodiment in the term that the disclosure uses, and is not intended to be limiting and originally opens.
" one kind " of singulative used in disclosure and the accompanying claims book, " described " and "the" are also intended to including more number forms
Formula, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refer to and comprising
The associated list items purposes of one or more any or all may combine.
It will be appreciated that though various information may be described using term first, second, third, etc. in the disclosure, such as
First electrocardiosignal and the second electrocardiosignal, but these information should not necessarily be limited by these terms, and the first electrocardiosignal is referred to alternatively as
Two electrocardiosignals, vice versa.These terms are only used for same type of information being distinguished from each other out.Depending on linguistic context, such as exist
This used word " if " can be construed to " ... when " or " when ... " or " in response to determining ".
In order that those skilled in the art more fully understand the disclosure, with reference to the accompanying drawings and detailed description to this public affairs
Open and be described in further detail.
The schematic diagram of the first embodiment of the blood pressure detector according to the disclosure shown in Fig. 1.As shown in figure 1, according to
The blood pressure detector 100 of the disclosure mainly includes multi signal collector unit 110 and processing unit 120.The multi signal is collected
Unit 110 has the interface of multi signal collector unit 110, for gathering a variety of physiological parameters.The processing unit 120, which receives, to be come
The signal that is gathered from the multi signal collector unit simultaneously carries out processing and obtains recognizable physiological parameter data.The processing unit
120 be usually a kind of common PAD forms, in the disclosure, commonly referred to as MTC.Its front is display, and it shows tested
One of heart real time oscillogram, blood oxygen amount, blood pressure, pulse and wireless telecommunications connection status of user or its any combination.MTC
On have two kinds of physical button, touch-screen virtual key.Physical button can be provided with Jing Yin, pause and play, return to main interface, open
Shut down button.The following touch-screen button is generally shown in MTC display main interface：Electrode slice (PATCH) electrocardio is believed
Number and mattress electrocardiosignal switching key, diurnal pattern switching key, from bed/stop key, " more " button, " user's switching "
Button etc..Touch-screen virtual key can be set according to the needs of function setting.MTC can be 3 with tape light, and alarm refers to
Show lamp, power supply indicator, Battery Indicator Light.The button for cuff calibration is may be provided with multi signal collector unit (BSB) 110
And mute button.Although multi signal collector unit 110 and processing unit 120 are shown in present disclosure specification and in Fig. 1 to connect
Individual individual components, but both can be integrated into a device, such as multi signal collector unit 110 can be merged into processing list
In member 120, the function softening of multi signal collector unit 110 can also be turned into a software installation in processing unit 120.It is more
Signal collection unit 110 is typically a kind of signal acquisition box (BSB) for being arranged in bedside, can so reduce mattress class electrocardio
Signal transmitting range between signal acquisition circuit and multi signal collector unit 110, so as to reduce the signal that outer bound pair is transmitted
Interference.There is lead-fail detector indicator lamp 1 on multi signal collector unit 110.When the indicator lamp flashes, represent that the multi signal is received
Wherein one or more detecting electrodes that collection unit 110 is connected come off.
The blood pressure detector 100 includes electrocardio signal collecting unit 130.According to the ecg signal acquiring list of the disclosure
Member 130 can be a kind of electrocardio signal collecting unit of mattress type of fixed position or a kind of chest electrode piece
(PATCH) electrocardio signal collecting unit of type.The electrocardio signal collecting unit of mattress type can use the public affairs of the applicant
The number of opening is the mattress described in the patent application of entitled " a kind of mattress for measuring cardiac parameters " of " CN104398358A ".Figure
A kind of mattress of the electrocardio signal collecting unit 130 that may be used for the disclosure shown in 2.Certainly, can be carried out using any
The mattress or fixed equipment of ECG detecting can.
As shown in Fig. 2 the set face of mattress 130 as depicted is divided into five parts, Part I and Part III are normal
The pure cotton cloth of rule is made, and Part II A, Part IV B and Part V C are silver fiber conductive fabric, as electrocardiogram acquisition circuit
Acquisition electrode.Silver fiber conductive fabric A and B are arranged with conductive button, can by the electrode part A of fiber conductive fabric and B from
The electric signal gathered on human body is via one of wire transmission to the interface of multi signal collector unit 110.Part V C can conduct
Leg motor.Silver fiber conductive fabric A, B and C as the acquisition electrode of electrocardiogram acquisition circuit have larger area, therefore,
The signal intensity of collection will be bigger, and signal is more stable.
Meanwhile as described above, electrocardio signal collecting unit 130 can also be a kind of wireless chest electrode piece (PATCH), can
Directly to stick on the chest of human body.This chest electrode piece can as the applicant propose publication number CN105708448A, name
Electrode slice or any in the market referred to as mentioned in the patent application of " information collecting device " can obtain electrode slice.
It is not described in detail herein.
The blood pressure detector 100 includes pulse wave signal collecting unit 150 and synchronization signal unit 140.Such as Fig. 1 institutes
Show, synchronization signal unit 140 is included in pulse wave signal collecting unit 150.Although it is shown here as synchronization signal unit 140
Included in pulse wave signal collecting unit 150, but synchronization signal unit 140 can also be included in other units, such as
Included in electrocardio signal collecting unit 130, in processing unit 120 or multi signal collector unit 110.Synchronization signal unit
140 by synchronizing signal simultaneously be sent to the electrocardio signal collecting unit 130, the pulse wave signal collecting unit 150 and
Multi signal collector unit 110, so that the electrocardio signal collecting unit 130, the pulse wave signal collecting unit 150 will be connect
The synchronizing signal received is encoded on gathered signal and the multi signal collector unit 110 is based on received synchronization
Signal synchronizes processing to collected signal.There are 2 fingers on pulse wave signal collecting unit 150 (such as a kind of watch)
Show lamp, battery status and run indicator.When Battery Indicator Light lights or flashes, it is necessary to it is charged immediately.When
When pulse wave signal collecting unit 150 is in running order, operation knowledge etc. is normally opened.
Shown in Fig. 3 is the schematic diagram according to the blood pressure monitor system running of the disclosure.As shown in figure 3, all
It is related in the unit of signal acquisition and transmission and has all used chip 24L01.NRF24L01 is being operated in by NORDIC productions
The monolithic wireless transceiver chip of 2.4GHz~2.5GHz ISM band.Wireless transceiver includes：It is frequency generator, enhanced
" SchockBurst " mode controller, power amplifier, crystal oscillator, modulator and demodulator.Chip 24L01 is usually
Bluetooth transferring and receiving apparatus chip.Its power output channel selection and the setting of agreement can be configured by SPI interface.Almost can be with
Various singlechip chips are connected to, and complete Wireless data transmission work.Although this sentences 24L01, chip is said as an example
It is bright, but can also use other that there is the chip of identical function, differ a citing herein.
As shown in figure 3, the processing unit 120 being connected with multi signal collector unit 110, i.e., the MTC being connected with BSB are generally wrapped
Include checking identification generation unit (not shown) and signal transmitting unit.In this example, the 24L01 chips in MTC are sent out for signal
Send unit.When system starts, the checking identification generation unit in MTC calculates a MAC Address at random and frequency range is used as and tested
Card mark, and the checking generated mark is sent to by the blood pressure detecting by signal transmitting unit (bluetooth Transmit-Receive Unit) and filled
Other independent Component units in putting, for example, multi signal collector unit 110 (BSB), electrocardio signal collecting unit 130 and described
Pulse wave signal collecting unit 150.It is used as by sharing this between the synchronous multiple separate units of the needs in a system
The MAC Address and frequency range of mark are verified, the crosstalk between the different system of the same type in same ward can be prevented.
The MAC Address and frequency range are usually the MAC Address and frequency range of 2.4G synchronizers.In this example, checking mark
Preceding 5 bytes known are the 2.4G MAC Address on MTC, and frequency range calculates generation random number 90~118 by MTC.The upper MAC of MTC
Location is, for example, b8:d3:3c:24:97:E7, it is 96 to calculate random number, therefore, checking identification generation unit generation 2.4G MAC
Location is b8:d3:3c:24:97, frequency range 96, corresponding actual transmission frequency is 2.4GHz+96MHz.(MTC can be Android system,
Can also be conventional other systems, this sentences Android system and illustrated for example.)
Verified or unified between all system Component units after MAC Address and the frequency range of communication, synchronous letter
Number unit 140 (being shown here as WPO (radio blood oxygen and blood oxygen probe, being typically embodied by a kind of watch)) was according to the time of 1 second
Interval is by synchronization frame (synchronizing signal) while is sent to multi signal collector unit 110 (BSB) and electrocardio signal collecting unit 130
(such as PATCH (chest electrode patch)).Although being previously mentioned synchronizing signal is also sent to the pulse wave signal collecting unit
150 (i.e. WPO), but when the pulse wave signal collecting unit 150 includes the synchronization signal unit 140, the pulse
Ripple signal gathering unit 150 will directly utilize the synchronization frame, and process is sent and received without the synchronization frame.As above institute
State, in this example, synchronization signal unit 140 is included in pulse wave signal collecting unit 150.Although it is shown here as synchronization
Signal element 140 is included in pulse wave signal collecting unit 150, but synchronization signal unit 140 can also be included in other
In unit, such as included in electrocardio signal collecting unit 130, in processing unit 120 or multi signal collector unit 110.
The synchronization frame for being produced and being sent by (in radio blood oxygen probe or watch) synchronization signal unit 140 as described above
Otherwise referred to as cadence signal, timestamp, time head, second synchronous head or sync mark, its effect are the pulse waves for watch
Data and the electrocardiogram (ECG) data of mattress or PATCH collection synchronize.(in watch) synchronization signal unit 140 passes through 2.4GHz+
One signal of the radio-frequency transmissions of random number, other wireless channels may also be used for sending the synchronizing signal, as long as disclosure satisfy that
The purpose of the disclosure.Synchronizing signal is sent once for one second, and data only have a byte, and content is：
1 (synchronization frame 1)；2 (synchronization frames 2)；3 (synchronization frames 3)；4 (synchronization frames 4)
Every four seconds are a cycle, are cycled through afterwards.Although this sentences 1 second and is described for example, the transmitting
Interval be can not be 1 second, and 0.5 second or 2 seconds or other interval time values are could be arranged to according to being actually needed.Although give herein
The example gone out be every 4 seconds be a cycle, actually can also every five seconds for example, be a cycle within 8 seconds, 10 seconds.When using every five seconds for example one
During the individual cycle, synchronizing signal is sent once for one second, and data only have a byte, and content is：
1 (synchronization frame 1)；2 (synchronization frames 2)；3 (synchronization frames 3)；4 (synchronization frames 4)；5 (synchronization frames 5)
Although the example of synchronizing signal provided herein is a synchronization frame for including numbering, the synchronization frame also may be used
To be the absolute time of synchronization signal unit 140 oneself operation, it includes the current time of date Hour Minute Second microsecond, such as
50 milliseconds of December 26 day 22 point 35 minute 10 second in 2016.Selectively, the synchronization frame can also be simultaneously comprising frame number and current
Absolute time.Length is described to save, example below will also be illustrated with numbering synchronization frame.Received in BSB and PATCH
To after synchronization frame, BSB signal gathering unit carries out frame count clearing, that is, restarts to count frame, simultaneously closes off signal hair
Unit, such as 24L01 are sent, then to carry out the transmission of periodic packet.Same PATCH signal gathering unit is carried out
Frame count is reset, that is, is restarted to count frame, simultaneously closed off signal transmitting unit, such as 24L01, then to carry out periodically
Packet transmission.When signal is transmitted reception in systems, it will usually there is about 260us transmission delay,
, it is necessary to calculate the delay during loading synchronous frame, accurately to load the synchronization frame.Because the calculating of data transfer delay belongs to existing
There is technology, therefore be not described herein.
During subsequent WPO gathers oximetry data, WPO carries out pulse wave (PPG) number with such as 500Hz sample frequency
According to collection, and by then carrying out bluetooth communication transmission packet by starting 24L01.Because the sample rate of pulse wave is
500Hz, per second is 500 sample point datas.Due to the limitation of the volume of transmitted data of bluetooth communication, this 500 sampled point per second
Data are needed to be divided into 50 packets transmissions, i.e., every 10 sample point data bags are sent once, that is to say, that one is sent per 20ms
Secondary data.This 50 packets, an identical second synchronous head is had before each packet and according to acquisition order imparting
Package number (1~50), thus synchronizing signal is encoded or is loaded into gathered signal or packet.
The field of each packet forms as follows:
10 second synchronous head 1, packet number 1, watch pulse wave data sampled points
10 second synchronous head 1, packet number 2, pulse wave data sampled points
10 second synchronous head 1, packet number 3, pulse wave data sampled points
……
10 second synchronous head 1, packet number 50, pulse wave data sampled points
10 second synchronous head 2, packet number 1, pulse wave data sampled points
10 second synchronous head 2, packet number 2, pulse wave data sampled points
10 second synchronous head 2, packet number 3, pulse wave data sampled points
……
10 second synchronous head 2, packet number 50, pulse wave data sampled points
10 second synchronous head 3, packet number 1, pulse wave data sampled points
10 second synchronous head 3, packet number 2, pulse wave data sampled points
10 second synchronous head 3, packet number 3, pulse wave data sampled points
……
10 second synchronous head 3, packet number 50, pulse wave data sampled points
10 second synchronous head 4, packet number 1, pulse wave data sampled points
10 second synchronous head 4, packet number 2, pulse wave data sampled points
10 second synchronous head 4, packet number 3, pulse wave data sampled points
……
10 second synchronous head 4, packet number 50, pulse wave data sampled points
10 second synchronous head 1, packet number 1, pulse wave data sampled points
10 second synchronous head 1, packet number 2, pulse wave data sampled points
10 second synchronous head 1, packet number 3, pulse wave data sampled points
……
10 second synchronous head 1, packet number 50, pulse wave data sampled points
BSB collecting cassettes and PATCH can enter synchronizing signal with the electrocardiogram (ECG) data locally gathered after the synchronizing signal is received
Row is synchronous.BSB (in the case of being connected to mattress electrode) and PATCH in itself can continuous automatic data collection electrocardiogram (ECG) data, collect
Electrocardiogram (ECG) data will also transmit.PATCH electrocardiogram (ECG) data is sent to BSB.BSB can be by electrocardiogram (ECG) data, the PATCH of itself collection
The pulse wave data that the electrocardiogram (ECG) data and WPO sent is sent is sent to MTC.
Therefore, equally, after PATCH receives synchronous head, remove and restart timer, and carried out with 2ms time interval
Continuous sampling, first sampled point are labeled as sampled point 1, afterwards according to 2ms 499 points of time interval continuous sampling, altogether
500 points.It is pointed out that PATCH only receives the synchronous head or cadence signal of watch transmission, the pulse wave of watch is not received
Data.Due to the limitation of the volume of transmitted data of bluetooth communication, this 500 sample point data per second needs to be divided into 50 packet hairs
Send, i.e., every 10 sample point data bags are sent once, that is to say, that a data are sent per 20ms.This 50 packets, every
An identical second synchronous head and the packet number (1~50) assigned according to acquisition order are had before individual packet, thus will be synchronous
Signal coding is loaded into gathered signal or packet.PATCH packet ECG2, can add second synchronous head and bag is compiled
Number, the field composition of each packet is as follows:
10 second synchronous head 1, packet number 1, electrocardiogram (ECG) data sampled points
10 second synchronous head 1, packet number 2, electrocardiogram (ECG) data sampled points
10 second synchronous head 1, packet number 3, electrocardiogram (ECG) data sampled points
……
10 second synchronous head 1, packet number 50, electrocardiogram (ECG) data sampled points
10 second synchronous head 2, packet number 1, electrocardiogram (ECG) data sampled points
10 second synchronous head 2, packet number 2, electrocardiogram (ECG) data sampled points
10 second synchronous head 2, packet number 3, electrocardiogram (ECG) data sampled points
……
10 second synchronous head 2, packet number 50, electrocardiogram (ECG) data sampled points
10 second synchronous head 3, packet number 1, electrocardiogram (ECG) data sampled points
10 second synchronous head 3, packet number 2, electrocardiogram (ECG) data sampled points
10 second synchronous head 3, packet number 3, electrocardiogram (ECG) data sampled points
……
10 second synchronous head 3, packet number 50, electrocardiogram (ECG) data sampled points
10 second synchronous head 4, packet number 1, electrocardiogram (ECG) data sampled points
10 second synchronous head 4, packet number 2, electrocardiogram (ECG) data sampled points
10 second synchronous head 4, packet number 3, electrocardiogram (ECG) data sampled points
……
10 second synchronous head 4, packet number 50, electrocardiogram (ECG) data sampled points
10 second synchronous head 1, packet number 1, electrocardiogram (ECG) data sampled points
10 second synchronous head 1, packet number 2, electrocardiogram (ECG) data sampled points
10 second synchronous head 1, packet number 3, electrocardiogram (ECG) data sampled points
……
10 second synchronous head 1, packet number 50, electrocardiogram (ECG) data sampled points
Equally, after BSB receives synchronous head, remove and restart timer, and continuously adopted with 2ms time interval
Sample, first sampled point are labeled as sampled point 1, afterwards according to 2ms 499 points of time interval continuous sampling, 500 altogether
Point.Due to the wired serial ports connection of generally use between BSB and MTC, therefore subpackage need not be carried out to the electrocardiogram (ECG) data that it is gathered
Processing, it is only necessary to which upper synchronous head is sequentially loaded to each sampled data.Therefore, it is same to add the second by BSB packet ECG1
Head is walked, form is as follows：
500 second synchronous head 1, electrocardiogram (ECG) data sampled points
500 second synchronous head 2, electrocardiogram (ECG) data sampled points
500 second synchronous head 3, electrocardiogram (ECG) data sampled points
500 second synchronous head 4, electrocardiogram (ECG) data sampled points
500 second synchronous head 1, electrocardiogram (ECG) data sampled points
It is pointed out that the disclosure exist when need not necessarily seek common ground BSB (with reference to mattress electrode) collection ECG1 and
The ECG2 that PATCH 130 is gathered, can only exist a kind of ECG data bag.When people are needed in certain bluetooth communication scope
When movable, electrocardiogram acquisition can not be carried out by mattress, and be only acquired by PATCH 130.Equally, can also adopt simultaneously
Collect two-way ECG signal.
It is same according to the second after BSB receives the electrocardiogram (ECG) data bag that the pulse wave data bag of the transmission of watch 150 and PATCH130 are sent
Walk head and packet number carries out data splicing, spliced pulse wave data form is as follows：
Second synchronous head 1, pulse wave sample point data 0~9,10~19 ..., 490~499
Second synchronous head 2, pulse wave sample point data 0~9,10~19 ..., 490~499
Second synchronous head 3, pulse wave sample point data 0~9,10~19 ..., 490~499
Second synchronous head 4, pulse wave sample point data 0~9,10~19 ..., 490~499
Second synchronous head 1, pulse wave sample point data 0~9,10~19 ..., 490~499
Equally, after BSB receives the electrocardiogram (ECG) data bag of PATCH130 transmissions, data spelling is carried out according to second synchronous head and packet number
Connect, spliced electrocardiogram (ECG) data form is as follows：
Second synchronous head 1, electrocardio sample point data 0~9,10~19 ..., 490~499
Second synchronous head 2, electrocardio sample point data 0~9,10~19 ..., 490~499
Second synchronous head 3, electrocardio sample point data 0~9,10~19 ..., 490~499
Second synchronous head 4, electrocardio sample point data 0~9,10~19 ..., 490~499
Second synchronous head 1, electrocardio sample point data 0~9,10~19 ..., 490~499
Fig. 4 shows the process in above-mentioned loading synchronous head and packet header.
In addition it should be pointed out that although BSB mentioned above collection electrocardiosignal be to be connected by wire with electrode,
But it can also gather the electrocardiosignal of mattress electrode by wireless communication mode.Therefore it can be collected with electrocardiosignal
The electrocardiosignal of the mattress electrode of Acquisition Circuit.
As shown in figure 3, then, BSB can be by the electrocardiogram (ECG) data bag ECG1 of oneself collection, spliced PATCH 130 heart
Electric packet ECG2 and spliced pulse wave data bag PPG are sent to MTC by serial ports.
In summary, since being sent synchronously WPO (such as current second is synchronously 1), WPO/BSB/PATCH starts simultaneously at collection
Data, 500 sampled points of continuous acquisition, and by 500 points of present sample labeled as the second synchronously be 1 second data bag, WPO and
PATCH is carried out data transmission with bluetooth, and Bluetooth data transfer size has length limitation, so 500 collected per second
Sample point data must be separated into multiple packets and send, therefore 500 sample point datas are divided into 50 bags, each wrap 19 words
Save (byte), wherein comprising the second synchronous 1, packet number (1~50) and 10 sampled points, PATCH are sampled using 12 ADC, and WPO is adopted
Sampled with 14 ADC, blue-teeth data form is as follows：
As shown in figure 3, then, BSB can be by the electrocardiogram (ECG) data bag ECG1 of oneself collection, spliced PATCH 130 heart
Electric packet ECG2 and spliced pulse wave data bag PPG is sent to MTC by serial ports, and processing unit (MTC) 120 can root
Alignd according to the sequencing of synchronizing signal or second synchronous head and interior 500 points per second and correlation computations.It is based on BSB synchronous
Signal (second synchronous head) carries out time shaft " alignment " to collected signal data bag and is spliced to form multi signal synchrodata difference,
MTC receives electrocardio (BSB or PATCH) data progress rate calculation and the lookup heart with second synchronous head from BSB serial ports to per second
Electrical waveform R crest value points.This lookup mode belongs to prior art, therefore is not described in detail here.After R points are found, right
Answer and characteristic point is searched in the pulse wave data bag under second synchronous head, be i.e. pulse wave rises and most hurried up, so as to calculate PTT.With
Afterwards based on the relation between PTT and blood pressure, calculate continuously without Tail cuff blood pressure.
It is pointed out that connected by BSB mattress electrode collection ECG1 signals and by chest electrode piece PATCH
The core signal ECG 2 gathered independently using come with WPO caused by PPG signals synchronize, and then calculate PTT
And blood pressure, ECG1 and ECG2 can also be generated simultaneously in a system, and both are compared with selection preferably by MTC
ECG signal or other appropriate modes calculate and blood pressure calculating to carry out PTT.
As shown in figure 3, blood pressure detector as described above is a measurement human body items vital sign parameter comprehensively
System, various physiological datas are collected, such as Oximetry, rhythm of the heart, cardioelectric monitor especially can noninvasive continuous monitoring blood
Pressure, and blood pressure trend can be monitored.The vital sign data of user can integrate whole unified form and can be uploaded automatically by WiFi
Cloud Server, it is long-term to preserve.Thus, user can pay by health status of the cloud service referring physician on user.
When in use, first, start blood pressure monitor system 100, thus start all related Component units, such as BSB
110th, processing unit (MTC) 120, PATCH 130 and WPO150.Then, public domain is in system-operating environment, such as
More patient wards and there are more set systems may be by the case of use, the checking id signal list of processing unit (MTC) 120
Member can send checking mark, such as MTC120 MAC Address and random number, logical to establish checking between other units
Letter.The step is not step necessary to the disclosure.In the case of system use within the family, due to there was only a set of system
System, mutually communication checking mark can be established between the various elements in advance.
Unit is established after communication connection in system, and user is by pressing the start button on WPO 150
Synchronizing signal frame is sent to BSB 110, PATCH 130 etc..Then, BSB 110, PATCH 130 etc. are receiving synchronizing signal
After frame, the technology frame of itself is reset and shutdown signal sends receiving unit.After signal synchronization unit is received, BSB
110th, each commencing signal collection, and synchronizing signal frame or timestamp are added to sampled data and wrapped such as PATCH 130, with mark
Know period or time point that packet is gathered.Then, multi signal collecting unit BSB 110 is based on to collected packet
The timestamp that each signal data bag is included aligns on a timeline, and by the packet of the multi-signal of alignment with fixed
Interval is sent to processing unit (MTC) 110.Finally, at processing unit 120, is carried out to received packet the time pair
Neat processing, and the character pair point on the characteristic point R and pulse wave signal PPG of electrocardiosignal is searched, so as to calculate pulse
Wave propagation time PPT, and based on the sleeveless pressure value of PPT acquisition users.
The general principle of the disclosure is described above in association with specific embodiment, however, it is desirable to, it is noted that to this area
For those of ordinary skill, each part can be decomposed and/or reconfigured.These decompose and/or reconfigured and should be regarded as
The equivalents of the disclosure.Above-mentioned embodiment, the limitation to disclosure protection domain is not formed.People in the art
Member it is to be understood that depend on design requirement and other factors, can occur various modifications, combine, sub-portfolio and
Substitute.Any modifications, equivalent substitutions and improvements made within the spirit and principle of the disclosure etc., should be included in the disclosure
Within protection domain.
Claims (11)
1. a kind of blood pressure detector, including electrocardio signal collecting unit, pulse wave signal collecting unit, multi signal collect list
Member, synchronization signal unit and signal processing unit, it is characterised in that the electrocardio signal collecting unit and pulse wave signal
Collecting unit is connected with the multi signal collector unit to collect from the electrocardio signal collecting unit and the pulse respectively
The signal that the transmission of ripple signal gathering unit comes, the synchronization signal unit generation synchronizing signal are simultaneously same by the synchronizing signal generated
When be sent to the electrocardio signal collecting unit, the pulse wave signal collecting unit and multi signal collector unit, with toilet
State electrocardio signal collecting unit and received synchronizing signal is encoded to what is gathered by the pulse wave signal collecting unit
On signal and the multi signal collector unit synchronizes place based on received synchronizing signal to collected signal
Reason, and the signal processing unit are connected with the multi signal collector unit to receive from multi signal collector unit hair
The synchronous electrocardiosignal and pulse wave signal sent, and gone out based on received electrocardiosignal and pulse wave signal Continuous plus
The blood pressure of user.
2. blood pressure detector according to claim 1, wherein the synchronization signal unit at regular intervals and
Frequency generates and sends the synchronizing signal.
3. blood pressure detector according to claim 2, wherein the synchronizing signal can be timestamp, the timestamp
For a synchronization frame for representing numbering, the synchronization frame of current time is represented, or includes the synchronization frame numbered with current time.
4. blood pressure detector according to claim 3, wherein when the frequency that the synchronizing signal is sent is one per second
Between stab, each cycle sends four timestamps.
5. blood pressure detector according to claim 3, described that received synchronizing signal is encoded into what is gathered
Signal includes for received timestamp being added to the packet header of all signal data bags gathered in the timestamp, with mark
Know the acquisition time scope of the packet.
6. blood pressure detector according to claim 1, wherein the signal processing unit also includes checking mark generation
Unit and signal transmitting unit, the checking identification generation unit generates checking mark at random and the signal transmitting unit will
Other the independent Component units that are sent in the blood pressure detector of checking mark generated, so as to prevent different system it
Between crosstalk.
7. blood pressure detector according to claim 6, wherein the checking is identified as a random MAC address and one
Working frequency range.
8. blood pressure detector according to claim 1, wherein the pulse wave signal collecting unit is adopted for radio blood oxygen
Collect unit, it carries out communication with the signal collection unit by Blue-tooth communication method and is connected.
9. blood pressure detector according to claim 8, wherein the electrocardio signal collecting unit is with electrocardiogram acquisition
The electrocardio signal collecting unit of circuit, the electrocardio signal collecting unit are directly connected with the signal collection unit by signal wire
Connect.
10. blood pressure detector according to claim 8, wherein the electrocardio signal collecting unit is wireless chest electrode
Patch, it carries out communication with the signal collection unit by Blue-tooth communication method and is connected.
11. according to the blood pressure detector described in one of claim 1-9, wherein the signal processing unit is based on received
The signal that is received from the multi signal collector unit of synchronizing signal decoding.
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| CN201720072716.1U CN206792398U (en) | 2017-01-20 | 2017-01-20 | Blood pressure detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725392A (en) * | 2017-01-20 | 2017-05-31 | 深圳诺康医疗设备股份有限公司 | blood pressure detecting system and method |
| CN113689946A (en) * | 2020-12-31 | 2021-11-23 | 深圳市人民医院 | Family ward unit management system |
-
2017
- 2017-01-20 CN CN201720072716.1U patent/CN206792398U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725392A (en) * | 2017-01-20 | 2017-05-31 | 深圳诺康医疗设备股份有限公司 | blood pressure detecting system and method |
| CN113689946A (en) * | 2020-12-31 | 2021-11-23 | 深圳市人民医院 | Family ward unit management system |
| CN113689946B (en) * | 2020-12-31 | 2023-08-22 | 深圳市人民医院 | Household ward unit management system |
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Address after: 518057 Guangdong city of Shenzhen province Nanshan District science and technology eight South Road No. 2 building 7E-b Howell Technology Patentee after: Shenzhen Nuokang Medical Technology Co., Ltd Address before: 7e-b, Haowei science and technology building, No. 2, Keji South 8th Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN NUOKANG MEDICAL EQUIPMENT Co.,Ltd. |