CN105962910A - Pulse condition collection method and device - Google Patents
Pulse condition collection method and device Download PDFInfo
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- CN105962910A CN105962910A CN201610402952.5A CN201610402952A CN105962910A CN 105962910 A CN105962910 A CN 105962910A CN 201610402952 A CN201610402952 A CN 201610402952A CN 105962910 A CN105962910 A CN 105962910A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4854—Diagnosis based on concepts of traditional oriental medicine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0261—Strain gauges
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Abstract
The invention discloses a pulse condition collection system. The pulse condition collection system comprises a detection table, a main control module and an upper computer, wherein the detection table comprises a table support and three detection devices arranged on the table support and used for detecting the cun portion, guan portion and chi portion of the wrist of a user. Each detection device comprises a photoelectric sensor array, a pressure sensor group and a driving component, wherein the photoelectric sensor array, the pressure sensor group and the driving component are all electrically connected with the main control module. The main control module is in communication with the upper computer. The invention further discloses a pulse condition collection method. By the adoption of the system and method, reliability and convenience of pulse condition collection are improved.
Description
Technical field
The present invention relates to technical field of medical equipment, particularly relate to a kind of pulse-tracing collection method and device.
Background technology
Along with the raising of living standard, people increasingly focus on own health level.Chinese medicine pulse exists
The fields such as medical research, health care, home care have a wide range of applications, can be used for diseases monitoring,
The aspects such as body constitution distinguishes, healthy early warning.In theory of Chinese medical science, pulse condition can be divided into according to the power of arteries and veins
Three kinds of situations of taking pulse lightly, moderately and heavily；According to the perception position of arteries and veins, cun, guan and chi, three places at the wrist where the pulse is usually taken three can be divided into.
Pulse wave spectrum, through the development of thousand of years, defines a set of science and complete theoretical system.
But Traditional Chinese Medicine pulse-taking need to be by means of the long-term experience accumulation of doctor, and pulse condition is retouched by theory of Chinese medical science
State excessively fuzzy and general, this subjectivity having resulted in diagnostic result and the difficulty of succession.Electropulsograph
Develop and be contemplated to objectively obtain the pulse wave figure of quantization, for scientific research, medical diagnosis etc..
The existing electropulsograph having use value is based on list portion, and major part uses single-sensor, it is impossible to
Comprehensively obtaining the information of three nine marquis in theory of Chinese medical science, the signal reliability obtaining pulse-tracing collection is relatively low.
On the control structure, a lot of manually regulation or patterns of fixation pressure of using are the most convenient.
Summary of the invention
Present invention is primarily targeted at a kind of pulse-tracing collection method and device of offer, it is intended to improve pulse condition
The reliability being acquired and convenience.
For achieving the above object, the invention provides a kind of pulse condition collecting system, described pulse condition collecting system
Including detection board, main control module and host computer, described detection board includes board support and is located at described
On board support and for detecting three detection devices in user's wrist CUN, GUAN spot and chi portion, described
Detection device includes photosensor arrays, pressure transducer group and drives assembly；Described photoelectric sensor
Array, described pressure transducer group and described driving assembly all electrically connect with described main control module, described master
Control module is communicatively coupled with described host computer；
The pulse feeling pressure collected is transferred to described main control module, described master control by described pressure transducer group
Module, when judging that described pulse feeling pressure is not up to setup pressure value, controls corresponding driving Component driver institute
State pressure transducer group to move, to regulate the pressure of described pressure transducer group；When pulse feeling pressure reaches to set
During level pressure force value, gather pulse wave signal by described pressure transducer group and described photosensor arrays,
And by the transmission of described pulse wave signal to described main control module；Described main control module is to described pulse wave signal
After being amplified filtering and being converted to digital signal, transmission to described host computer；Described host computer judges institute
State whether digital signal meets specified requirements, the most then control described pressure transducer group and described photoelectricity
Sensor array continues gather pulse wave signal and store, if it is not, then prompting user adjusts wrist position
Put.
Preferably, led to by USB/WIFI coffret between described main control module and described host computer
Letter connects.
Preferably, described pressure transducer group includes semiconductor gauge and multiple foil sensor, described
Multiple foil sensors one favour stone balanced bridge of composition, described semiconductor gauge composition 1/4th
Individual favour stone balanced bridge.
Preferably, described photosensor arrays includes three infrared emission tubes and nine infrared receivers
Pipe.
Preferably, described three detection devices include for detect user's wrist CUN first detection device,
For detecting the second detection device of user's wrist GUAN spot and for detecting the 3rd detection in user's wrist chi portion
Device；
Described first detection device includes:
First photosensor arrays, for obtaining the pulse wave signal of wrist CUN；
First pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal of wrist CUN；
First drives assembly, is used for driving described first photosensor arrays and described first pressure sensing
The movement of device group；
Described second detection device includes:
Second photosensor arrays, for obtaining the pulse wave signal of wrist GUAN spot；
Second pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal of wrist GUAN spot；
Second drives assembly, is used for driving described second photosensor arrays and described second pressure sensing
The movement of device group；
Described 3rd detection device includes:
3rd photosensor arrays, for obtaining the pulse wave signal in wrist chi portion；
3rd pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal in wrist chi portion；
3rd drives assembly, is used for driving described 3rd photosensor arrays and described 3rd pressure sensing
The movement of device group.
Preferably, described board support includes fixing with described base for the base placing user's wrist
The longitudinal rail that connects, at the fixed structure of described slide on rails, being provided above of described base
The cantilever beam being connected with described fixed structure, described photosensor arrays, described pressure transducer group and
Described driving assembly is arranged on described cantilever beam；The periphery of described photosensor arrays is provided with light
Radome, the one side contacted with user's wrist arranges opening, when user's wrist and described light barrier cover
During openings contact, in described light barrier cover, form a darkroom.
Preferably, described main control module includes pressure signal filtering and amplifying circuit, and described pressure signal amplifies
Filter circuit includes difference amplifier, low-frequency filter, one-level amplifier and two grades of amplifiers；Described difference is put
The input of big device is connected with described pressure transducer group, and the outfan of described difference amplifier is by described
Low-frequency filter is connected with the input of described one-level amplifier, the outfan of described one-level amplifier and described two
The input of level amplifier connects；The outfan of described difference amplifier and the outfan of described two grades of amplifiers are equal
It is connected with described host computer.
Additionally, for achieving the above object, present invention also offers a kind of pulse-tracing collection method, described pulse condition
Acquisition method includes:
Obtain the pulse feeling pressure that user's wrist CUN, GUAN spot, chi portion are corresponding, it is judged that described pulse feeling pressure is
No reach setup pressure value；
If described pulse feeling pressure reaches setup pressure value, then obtain user's wrist CUN, GUAN spot, chi portion pair
The pulse wave signal answered；
Whether the signal quality of described pulse wave signal accessed in judging Preset Time meets is specified bar
Part；
If the signal quality of described pulse wave signal accessed in Preset Time meets specified requirements, then
Continue obtain pulse wave signal and store.
Preferably, the signal quality of accessed in described judgement Preset Time described pulse wave signal is
No meet specified requirements and include:
Described pulse wave signal accessed in Preset Time is filtered high-frequency noise and obtains filtering signal,
Described filtering signal is removed baseline drift and obtains steady pulse signal；
Described steady pulse signal is carried out monocycle segmentation, steady pulse signal in extracting each monocycle
Temporal signatures, calculate the variance of described temporal signatures；
Judge that whether described variance is less than the threshold value set；
If, it is determined that signal quality meets specified requirements；
If not, it is determined that signal quality is unsatisfactory for specified requirements.
Preferably, described pulse-tracing collection method also includes:
If the signal quality of described pulse wave signal accessed in Preset Time is unsatisfactory for specified requirements,
Then prompting user adjusts wrist location.
The pulse feeling pressure collected is transferred to main control module, master control by embodiment of the present invention pressure transducer group
Module, when judging that described pulse feeling pressure is not up to setup pressure value, controls corresponding driving Component driver pressure
Force transducer group move, to regulate the pressure of pressure transducer group；When pulse feeling pressure reaches setup pressure value
Time, gather pulse wave signal by pressure transducer group and photosensor arrays, and by pulse wave signal
Transmission is to main control module；After main control module is amplified filtering and is converted to digital signal pulse wave signal
Transmission is to host computer；Host computer judges whether digital signal meets specified requirements, the most then control pressure
Sensor group and photosensor arrays continue gather pulse wave signal and store, if it is not, then point out
User adjusts wrist location, improves the reliability and convenience being acquired pulse condition.
Accompanying drawing explanation
Fig. 1 is the module diagram of pulse condition collecting system of the present invention；
Fig. 2 is photosensor arrays and the knot of pressure transducer group distribution in pulse condition collecting system of the present invention
Structure schematic diagram；
Fig. 3 is the structural representation of photosensor arrays in pulse condition collecting system of the present invention；
Fig. 4 is the integrally-built example structure schematic diagram of pulse condition collecting system of the present invention；
Fig. 5 is pulse condition collecting system of the present invention another example structure schematic diagram integrally-built；
Fig. 6 is the structural representation of main control module in pulse condition collecting system of the present invention；
Fig. 7 is the structural representation of pressure signal amplifying circuit in main control module of the present invention；
Fig. 8 is the schematic flow sheet of pulse-tracing collection method first embodiment of the present invention；
Fig. 9 is the schematic flow sheet of pulse-tracing collection method the second embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
As shown in Figure 1, it is shown that the module diagram of a kind of pulse condition collecting system of the present invention.This embodiment
Pulse condition collecting system include detecting board 10, main control module 20 and host computer 30, detection board 10 wraps
Include board support and be located on board support and for detecting user's wrist CUN, GUAN spot and the three of chi portion
Individual detection device, detection device includes photosensor arrays, pressure transducer group and drives assembly；Light
Electric transducer array, pressure transducer group and drive assembly all electrically connect with main control module, main control module and
Host computer is communicatively coupled.Alternatively, connect by USB/WIFI transmission between main control module and host computer
Mouth is communicatively coupled, and this driving assembly can be decelerating step motor.
User positions according to the CUN of position opponent's wrist strap of processus styloideus radii, GUAN spot, the position in chi portion
After, pressure transducer group by collecting CUN, GUAN spot, the pulse feeling pressure in chi portion are transferred to main control module,
This pulse feeling pressure is the pressure that pressure transducer group contacts suffered by user's wrist.Main control module is cut in judgement
When pulse pressure is not up to setup pressure value, according to contact pressure between pressure transducer group and user's wrist
Size, to driving assembly to be finely adjusted, controls corresponding driving Component driver pressure transducer group and moves,
To regulate the pressure of pressure transducer group so that drive assembly pressure can be adjusted to setup pressure value.
It should be noted that force value set by the CUN of user's wrist, GUAN spot, chi portion could be arranged to
Unanimously, it is also possible to be inconsistent.When pulse feeling pressure reaches setup pressure value, pass through pressure transducer
Group and photosensor arrays gather pulse wave signal, and transmit pulse wave signal to main control module.Main
After control module is amplified filtering and is converted to digital signal pulse wave signal, transmission is to host computer；On
Position machine judges whether digital signal meets specified requirements, the most then control pressure transducer group and photoelectric transfer
Sensor array continues gather pulse wave signal and store, if it is not, then prompting user adjusts wrist location.
Further, as in figure 2 it is shown, for the hysteresis and the drift that reduce pressure transducer, convenient
The analysis of static information and quantization, and reduce the pressure that user's wrist is applied, pressure transducer group wraps
Including semiconductor gauge 205 and multiple foil sensor, multiple foil sensors include the first foil sensing
Device the 201, second foil sensor the 202, the 3rd foil sensor 203 and the 4th foil sensor 204,
These four foil sensors, one favour stone balanced bridges of composition, semiconductor gauge 205 forms four/
One favour stone balanced bridge.
Specifically, the sensor that pressure transducer group is used is divided into two kinds, and a kind of is highly sensitive coefficient
Semiconductor gauge, this semiconductor gauge 205 forms 1/4th favour stone balanced bridges and is used for obtaining
The pulse wave signal produced when taking beat pulse；Another kind is that sluggish and that drift is less high accuracy foil passes
Sensor, four foil sensor one favour stone balanced bridges of composition are used for obtaining foil sensor and user
Contact pressure between wrist, and the pulse wave signal produced during beat pulse.
In Fig. 2, photosensor arrays is provided with light barrier cover 207, and photosensor arrays is at circuit
On plate 208, light barrier cover 207 covers circuit board 208, light barrier cover 207 and circuit board 208 phase
To one side be provided with opening.In use, light barrier cover lower contact user's wrist, with top electricity
One darkroom of plate composition, road.
Photosensor arrays includes three infrared emission tubes and nine infrared receiver tubes.Such as Fig. 3 institute
Showing, 301 is infrared emission tube, has three, and major function is to send infrared ray radiation on blood vessel；
302 is infrared receiver tube, has 9, arranges according to the direction of blood vessel width, is used for obtaining pulse wave
Signal, it is also possible to obtain blood vessel width information.
Utilize the photosignal of photosensor arrays collection and pressure transducer mine massively collection pressure signal it
Between diversity, can obtain more rich pulse condition information, thus solve determining of list portion and single-point probe
The problem that position quantity of information that is inaccurate and that obtain is the most single.
By pressure transducer group and the Combined design of photosensor arrays, utilize the spy of different sensors
Property, formed and have complementary advantages: full-bridge foil-type pressure sensor is sluggish and drift is smaller, can obtain more
Pulse feeling pressure (i.e. contact pressure) accurately, can also obtain pulse wave signal simultaneously；1/4 bridge quasiconductor
Sensitivity of strain gauge is higher, can obtain pulse signal (i.e. pulse wave signal) with high-resolution.Make
Pressure transducer group, photosensor arrays and driving assembly must be passed through control to constitute closing of complete set
Ring multi-source Pulse signal acquisition system, utilizes closed-loop automatic control structure, is accurately controlled pressure transducer
The pressure of group, by preset different setup pressure value thus obtain the pulse wave signal of different amplitude.Adopt
With multi-sensor fusion technology, build photosensor arrays and obtain pulse signal, utilize pressure transducer
Group's perception pulse feeling pressure.After collecting pulse signal, can be with the signal quality of automatic discrimination pulse signal
The most qualified, if qualified, then continue to gather pulse signal storage, if defective, then remind user to adjust
Wrist location.
The pulse feeling pressure collected is transferred to main control module, master control by embodiment of the present invention pressure transducer group
Module, when judging that pulse feeling pressure is not up to setup pressure value, controls corresponding driving Component driver pressure and passes
Sensor group move, to regulate the pressure of pressure transducer group；When pulse feeling pressure reaches setup pressure value,
Gather pulse wave signal by pressure transducer group and photosensor arrays, and pulse wave signal is transmitted
To main control module；Main control module transmits after pulse wave signal being amplified filtering and being converted to digital signal
To host computer；Host computer judges whether digital signal meets specified requirements, the most then control pressure sensing
Device group and photosensor arrays continue gather pulse wave signal and store, if it is not, then point out user
Adjust wrist location.Solve the pressure transducer using single type, at perception static state pulse feeling pressure and
The problem cannot taken into account between perception dynamic pulse manifestation signal, improve the reliability that pulse condition is acquired and
Convenience.
Further, three detection device include for detect user's wrist CUN first detection device,
For detecting the second detection device of user's wrist GUAN spot and for detecting the 3rd detection in user's wrist chi portion
Device；Wherein, the first detection device includes: the first photosensor arrays, is used for obtaining wrist CUN
Pulse wave signal；First pressure transducer group, for obtaining pulse feeling pressure and the pulse wave of wrist CUN
Signal；First drives assembly, for driving the first photosensor arrays and the first pressure transducer group
Mobile.
Second detection device includes: the second photosensor arrays, for obtaining the pulse wave of wrist GUAN spot
Signal；Second pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal of wrist GUAN spot；The
Two drive assembly, for driving the second photosensor arrays and the movement of the second pressure transducer group.
3rd detection device includes: the 3rd photosensor arrays, for obtaining the pulse wave in wrist chi portion
Signal；3rd pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal in wrist chi portion；The
Three drive assembly, for driving the 3rd photosensor arrays and the movement of the 3rd pressure transducer group.
The present embodiment is independently arranged CUN, GUAN spot, the photosensor arrays at these three position, chi portion and pressure
Force transducer group, can obtain pulse condition width according to different pulse feeling pressure record pulse signals simultaneously
Degree information, improves the reliability obtaining pulse signal.
Further, as shown in Figure 4, board support include the base 406 for placing user's wrist and
The fixed structure 402 that base 406 is fixed the longitudinal rail 401 connected, slided on guide rail 401, guide rail
401, for moving on guide rail 401 for fixed structure 402, to regulate user's wrist and each light screen
Cover the relative position between cover.The cantilever being provided above being connected with fixed structure 402 at base 406
Beam 206 (as shown in Figure 2), cantilever beam 206 can be that beryllium-bronze material is made.Photosensor arrays,
Pressure transducer group and driving assembly are arranged on cantilever beam 206, i.e. in the front of cantilever beam 206 with anti-
Face, is together constituted a favour stone balanced bridge by foil gage group 201,202,203 and 204；
By semiconductor gauge 205 and other auxiliary resistances, constitute a 1/4 bridge favour stone balanced bridge.Paper tinsel
Drift and the sluggishness of formula foil gauge are smaller, can quantify pulse feeling pressure accurately；Quasiconductor should
The sensitivity coefficient becoming meter is higher, can preferably catch pulse wave signal.Outside photosensor arrays
Enclosing and be provided with light barrier cover, the one side contacted with user's wrist arranges opening, when user's wrist and light
During the openings contact of radome, in light barrier cover, form a darkroom.
As it is shown in figure 5, the first detection device also includes: the first light barrier cover 418, it is used for covering first
Photosensor arrays, the face contacted with user's wrist arranges opening, when user's wrist and the first light screen
When covering the openings contact of cover, in the first light barrier cover, form a darkroom；First cantilever beam, is used for putting
Put the first pressure transducer group, and the first light barrier cover will be connected；First motor rack 405, is used for fixing
First decelerating step motor 403.
Second detection device also includes: the second light barrier cover 419, is used for covering the second photoelectric sensor battle array
Row, the face contacted with user's wrist arranges opening, when the opening of user's wrist with the second light barrier cover connects
When touching, in the second light barrier cover, form a darkroom；Second cantilever beam, passes for placing the second pressure
Sensor group, and the second light barrier cover will be connected；Second motor rack 413, is used for fixing the second deceleration stepping
Motor 415.
3rd detection device also includes: the 3rd light barrier cover 420, is used for covering the 3rd photoelectric sensor battle array
Row, the face contacted with user's wrist arranges opening, when the opening of user's wrist with the 3rd light barrier cover connects
When touching, in the 3rd light barrier cover, form a darkroom；3rd cantilever beam, passes for placing the 3rd pressure
Sensor group, and the 3rd light barrier cover will be connected；3rd motor rack 410, is used for fixing the 3rd deceleration stepping
Motor 414.
Board support also includes multiple sensor adjustment bar, is used for regulating each photosensor arrays or each
Individual pressure transducer group position in different directions.Multiple sensor adjustment bars include the first adjusting rod
407, the second adjusting rod the 408, the 3rd adjusting rod the 409, the 4th adjusting rod the 411, the 5th adjusting rod 412 and
6th adjusting rod 404.Wherein, the 6th adjusting rod the 404, the 4th adjusting rod the 411, the 5th adjusting rod 412
It is respectively the sensor adjustment bar along vessel directions on diverse location；First adjusting rod 407, second regulates
Bar the 408, the 3rd adjusting rod 409 is respectively the sensor adjustment bar on diverse location along blood vessel width.
Multiple sensor adjustment bars can vertical direction, in vessel directions and blood vessel width to different
Sensor carries out pre-adjustment.Allow to ensure that detecting device more connects with user's wrist in vertical direction
Closely, or contact pressure smaller, prepare for pulse condition collecting system self-regulating process；Along blood
On pipe direction, it is ensured that three independent detection devices be respectively aligned to the CUN of user's wrist, GUAN spot, chi portion this
Three positions；On blood vessel width, ensure detection device alignment blood vessel center position as far as possible.
Board support also includes the radome 417, second of motor shielding cover the 416, first pressure transducer group
The radome 421 of pressure transducer group and the radome 422 of the 3rd pressure transducer group, motor shielding cover
Motor part on board support can be protected by 416, prevents motor by outward during operating
The interference on boundary, or user touches the motor operated by mistake and causes unnecessary injury.
Further, as shown in Figure 6, main control module 20 include photosignal filtering and amplifying circuit 502,
Pressure signal filtering and amplifying circuit 503, driving component control circuit 501, Data Acquisition Card circuit 504 and
Power voltage step down squelch circuit 505, wherein, photosignal filtering and amplifying circuit 502, pressure signal amplify filter
Wave circuit 503, driving component control circuit 501 are all connected with detection board 10；Data Acquisition Card circuit
504 respectively with photosignal filtering and amplifying circuit 502, pressure signal filtering and amplifying circuit 503 and host computer
30 connect, and are sent to host computer 30 after being used for converting analog signals into digital signal.Power voltage step down denoising
Circuit 505 photosignal filtering and amplifying circuit 502 respectively, pressure signal filtering and amplifying circuit 503, driving
Component control circuit 501, Data Acquisition Card circuit 504 connect, and power voltage step down squelch circuit 505 can be by
After external 12V Switching Power Supply carries out blood pressure lowering denoising, power to each circuit.
Main control module 20 have employed the thought of modularized design, owing to detection board includes for detecting user
Three detection devices in wrist CUN, GUAN spot and chi portion, therefore the main control module of complete set includes 1
Power voltage step down denoising module, 3 photosignal filtering and amplifying circuits, 1 pressure signal filtering and amplifying circuit,
1 Data Acquisition Card circuit and 3 driving component control circuit.Each circuit above-mentioned is with the form of submodule
It is assembled into the positive and negative two sides of mother matrix respectively, can dismantle at any time.Can complete between each circuit on motherboard
Signal connects and power supply supplies.The maintenance of system is easy in modular design, increases system availability, has
The most compatible.
It is provided with on motherboard and detects the Fabric Interface that board 10 is connected, the photoelectric transfer in detection board 10
The analogue signal that sensor array, pressure transducer group transmit enters main control module through this Fabric Interface
20, simultaneously needed for detection board 10 power supply and control signal also by this Fabric Interface from main control module 20
Transmission is to detection board 10.Owing to being independently arranged the detection device in CUN, GUAN spot, chi portion, every portion comprises
9 road photosignals and 2 road pressure signals, so detection board 10 1 has 33 road signal input master control moulds
Block 20.The photosignal in every portion is processed by single photosignal filtering and amplifying circuit, all of pressure
Force signal is processed by unified pressure signal filtering and amplifying circuit.Amplified filtered analogue signal is by counting
Word capture card circuit 504 is converted to digital signal, transmits to host computer through USB/WIFI coffret
30。
Further, as it is shown in fig. 7, pressure signal filtering and amplifying circuit 503 include difference amplifier 603,
Low-frequency filter 608, one-level amplifier 605 and two grades of amplifiers 606；The input 601 of difference amplifier 603,
602 are connected with pressure transducer group, and the outfan of difference amplifier 603 passes through low-frequency filter 608 and
The input of level amplifier 605 connects, the outfan of one-level amplifier 605 and the input of two grades of amplifiers 606
Connect；The outfan 604 of difference amplifier 603 and the outfan 607 of two grades of amplifiers 606 are all with upper
Machine 30 connects.
In one embodiment, in pressure signal filtering and amplifying circuit 503, the two of difference amplifier 603
Individual signal input part 601 and 602 is respectively two outputs of a favour stone balanced bridge.Differential amplification
The outfan 604 of device 603 is direct current signal and AC signal output, direct current signal and AC signal output
The AC signal obtained after low-frequency filter 608 is filtered transmits to one-level amplifier 605, to exchange
Signal carries out one-level amplification.AC signal after one-level is amplified transmits to two grades of amplifiers 606, believes this exchange
Number carry out two grades of amplifications, two grades amplify after AC signal export through outfan 607.
The signal of outfan 604 output of difference amplifier 603 take after average can as pulse feeling pressure, two
The signal of outfan 607 output of level amplifier 606 can be as pulse wave signal.Specifically, sensor energy
Enough two kinds of power of perception, one is to be applied in user's wrist produced static force by decelerating step motor,
Commonly referred to as pulse feeling pressure；Another kind is by produced by the beat pulse of user dynamic force, one
As referred to as pulse wave signal.In the form of expression of signal, pulse feeling pressure as DC signal output,
Pulse wave signal exports as AC signal.Arrange between difference amplifier 603 and one-level amplifier 605
Direct current signal is filtered out by one low-frequency filter 608, therefore one-level amplifier 605 and two grades of amplifiers 606
Pulse wave signal is all only worked by the amplification of this two-stage, the final arteries and veins after outfan 607 only amplification
Fight ripple signal.Outfan 604 comprises direct current signal and AC signal, in host computer, this direct current is believed
Number and AC signal signal take average and can eliminate AC signal, thus obtain DC component, the most available
Pulse feeling pressure.The present embodiment can extract pulse feeling pressure and pulse wave signal from same signal simultaneously,
A kind of modular pulse signal processes circuit, improves the convenience being acquired pulse condition.
Accordingly, as shown in Figure 8, one pulse-tracing collection method first embodiment of the present invention is proposed.This is real
The pulse-tracing collection method executing example includes:
Step S10, obtain the pulse feeling pressure that user's wrist CUN, GUAN spot, chi portion are corresponding, it is judged that described in cut
Whether pulse pressure reaches setup pressure value；
If the described pulse feeling pressure of step S20 reaches setup pressure value, then obtain user's wrist CUN, GUAN spot,
The pulse wave signal that chi portion is corresponding；
Step S30, judge that the signal quality of described pulse wave signal accessed in Preset Time is the fullest
Toe fixed condition；
Specify if the signal quality of described pulse wave signal accessed in step S40 Preset Time meets
Condition, then continue obtain pulse wave signal and store.
In the present embodiment, pulse-tracing collection method for pulse condition is acquired based on above-mentioned pulse condition collecting system,
This pulse condition collecting system includes detecting board, main control module and host computer, and detection board includes board support
Be located on board support and for detecting three of user's wrist CUN, GUAN spot and chi portion detection devices,
Detection device includes photosensor arrays, pressure transducer group and drives assembly；Photosensor arrays,
Pressure transducer group and driving assembly all electrically connect with main control module, and main control module communicates with host computer
Connect.
First user is carried out according to the CUN of position opponent's wrist strap of processus styloideus radii, GUAN spot, the position in chi portion
Location, it is possible to use the detection board of said structure, in vertical direction, along vessel directions and blood vessel width
Improve each sensor of sensor adjustment pole pair on direction and carry out pre-adjustment.Allow in vertical direction
Ensure that detection device is closer to user's wrist, or the pressure of contact is smaller, for pulse-tracing collection system
System self-regulating process is prepared；In vessel directions, it is ensured that three independent detection devices are respectively aligned to
The CUN of user's wrist, GUAN spot, these three position, chi portion；On blood vessel width, ensure inspection as far as possible
Survey device alignment blood vessel center position.
After wrist is placed on the base of detection board by user, by user's wrist CUN, GUAN spot and chi
User's wrist is carried out applying pressure by three detection devices in portion simultaneously.Pressure transducer group obtains use respectively
The pulse feeling pressure that family wrist CUN, GUAN spot, chi portion are corresponding, and pulse feeling pressure is sent to main control module,
Main control module is uploaded to host computer after pulse feeling pressure being amplified filtering and being converted to digital signal.Upper
Machine judges whether CUN, GUAN spot, the pulse feeling pressure at these three position, chi portion reach setup pressure value respectively,
This setup pressure value can be arranged as the case may be and flexibly, CUN, GUAN spot, chi portion these three position
Setup pressure value could be arranged to consistent force value, it is also possible to inconsistent, it is of course also possible to arrange many
Individual setup pressure value.
If host computer feedback pulse feeling pressure reaches the information of setup pressure value to main control module, then main control module
Controlling photosensor arrays and pressure transducer group, to obtain user's wrist CUN, GUAN spot, chi portion corresponding
Pulse wave signal, and the pulse wave signal collected is uploaded to host computer by main control module.Gather one
After section pulse wave photosignal, host computer receives the pulse wave photosignal in Preset Time, it is judged that should
Whether the signal quality of the pulse wave signal in Preset Time meets specified requirements.This specified requirements can root
It is configured according to being actually needed, such as, judges this by the variance obtaining pulse wave signal temporal signatures
Whether variance is in the threshold value set.
If the signal quality of the pulse wave signal in Preset Time meets specified requirements, then continue to obtain pulse
Ripple signal also stores.Such as, when needing the pulse wave signal gathering 60 seconds, adjusting user
After wrist CUN, GUAN spot, chi portion correspondence setup pressure value, after collecting the pulse wave signal of 10 seconds,
Judge whether the quality of this pulse wave signal in 10 seconds meets specified requirements, if meet, then store this 10
Pulse wave signal in Miao, and continue to gather the pulse wave signal of 50 seconds, thus it is met prescription
The pulse wave signal of 60 seconds.
If the signal quality of pulse wave signal accessed in Preset Time is unsatisfactory for specified requirements, then exist
In relevant informations such as host computer quality of output signals are ineligible, prompting user adjusts wrist location, or
Person is by the modes such as voice broadcast, display lamp flicker, buzzer rings and points out user.
The pulse feeling pressure that the present embodiment is corresponding by obtaining user's wrist CUN, GUAN spot, chi portion, in feeling the pulse
When pressure reaches setup pressure value, obtain the pulse wave signal that user's wrist CUN, GUAN spot, chi portion are corresponding,
And and pulse wave signal is carried out signal quality judgement, just continue when meeting specified requirements to obtain pulse wave letter
Number and store.Realize the CUN of user's wrist, GUAN spot, chi portion are carried out independent detection, can be by
According to different setup pressure value record pulse signals, and pulse wave signal is carried out the judgement of signal quality,
Improve the reliability and convenience that pulse condition is acquired.
Further, as it is shown in figure 9, based on above-mentioned pulse condition collecting device first embodiment, it is proposed that this
Invention pulse condition collecting device the second embodiment, in this embodiment, above-mentioned steps S30 includes:
Step S31, described pulse wave signal accessed in Preset Time is filtered high-frequency noise filtered
Ripple signal, is removed baseline drift to described filtering signal and obtains steady pulse signal；
Step S32, described steady pulse signal is carried out monocycle segmentation, extract in each monocycle steadily
The temporal signatures of pulse signal, calculates the variance of described temporal signatures；
Step S33, judge that described variance is whether less than the threshold value set；The most then perform step S34,
If it is not, then perform step S35；
Step S34, determine that signal quality meets specified requirements；
Step S35, determine that signal quality is unsatisfactory for specified requirements.
In the present embodiment, the letter of the pulse wave signal that pulse condition collecting system is accessed in Preset Time
During number quality judges, first pulse wave signal accessed in Preset Time is carried out FIR
(having limit for length's unit impulse response) High frequency filter, the high-frequency noise removed in signal obtains filtering signal.
FIR filter is made up of a series of convolution coefficients, filtering time and signal do convolution algorithm, compared to small echo,
The methods such as wavelet packet, its speed is than very fast.
Then filtering signal is carried out cubic spline interpolation simulated baseline drift, subtracts on the basis of original signal
Go this simulated baseline, i.e. can get steady pulse signal.Use sliding window method to steady pulse signal
Carry out monocycle segmentation, the temporal signatures of steady pulse signal in extracting each monocycle, then calculate
The variance of temporal signatures.When signal quality is higher, the variance of each cycle temporal signatures is more or less the same,
So variance should be within a certain range；When signal quality is poor, cycle cutting is inaccurate, each
The variance difference of the temporal signatures in cycle is bigger, so variance should exceed a certain scope.Therefore can set
Put suitable threshold value, differentiate whether pulse wave signal can be used according to side's extent.I.e. when variance is less than setting
During fixed threshold value, determine that signal quality meets specified requirements, when variance is more than or equal to the threshold value set,
Determining that signal quality is unsatisfactory for specified requirements, the threshold value of this setting can be configured as the case may be.
The present embodiment is judged by the variance extracting pulse wave signal temporal signatures, it is possible to achieve to height
Quality signal and second-rate pulse signal precisely identify, improve be acquired pulse condition reliable
Property.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a pulse condition collecting system, it is characterised in that described pulse condition collecting system include detect board,
Main control module and host computer, described detection board include board support and be located on described board support and
For detecting three detection devices in user's wrist CUN, GUAN spot and chi portion, described detection device includes light
Electric transducer array, pressure transducer group and driving assembly；Described photosensor arrays, described pressure
Sensor group and described driving assembly all electrically connect with described main control module, described main control module with described on
Position machine is communicatively coupled；
The pulse feeling pressure collected is transferred to described main control module, described master control by described pressure transducer group
Module, when judging that described pulse feeling pressure is not up to setup pressure value, controls corresponding driving Component driver institute
State pressure transducer group to move, to regulate the pressure of described pressure transducer group；When pulse feeling pressure reaches to set
During level pressure force value, gather pulse wave signal by described pressure transducer group and described photosensor arrays,
And by the transmission of described pulse wave signal to described main control module；Described main control module is to described pulse wave signal
After being amplified filtering and being converted to digital signal, transmission to described host computer；Described host computer judges institute
State whether digital signal meets specified requirements, the most then control described pressure transducer group and described photoelectricity
Sensor array continues gather pulse wave signal and store, if it is not, then prompting user adjusts wrist position
Put.
2. pulse condition collecting system as claimed in claim 1, it is characterised in that described main control module and institute
State and be communicatively coupled by USB/WIFI coffret between host computer.
3. pulse condition collecting system as claimed in claim 1, it is characterised in that described pressure transducer group
Including semiconductor gauge and multiple foil sensor, the plurality of foil sensor one favour stone of composition
Balanced bridge, described semiconductor gauge 1/4th favour stone balanced bridges of composition.
4. pulse condition collecting system as claimed in claim 1, it is characterised in that described photoelectric sensor battle array
Row include three infrared emission tubes and nine infrared receiver tubes.
5. pulse condition collecting system as claimed in claim 1, it is characterised in that described three detection devices
Including the first detection device for detecting user's wrist CUN, for detecting the second of user's wrist GUAN spot
Detect device and for detecting the 3rd detection device in user's wrist chi portion；
Described first detection device includes:
First photosensor arrays, for obtaining the pulse wave signal of wrist CUN；
First pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal of wrist CUN；
First drives assembly, is used for driving described first photosensor arrays and described first pressure sensing
The movement of device group；
Described second detection device includes:
Second photosensor arrays, for obtaining the pulse wave signal of wrist GUAN spot；
Second pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal of wrist GUAN spot；
Second drives assembly, is used for driving described second photosensor arrays and described second pressure sensing
The movement of device group；
Described 3rd detection device includes:
3rd photosensor arrays, for obtaining the pulse wave signal in wrist chi portion；
3rd pressure transducer group, for obtaining pulse feeling pressure and the pulse wave signal in wrist chi portion；
3rd drives assembly, is used for driving described 3rd photosensor arrays and described 3rd pressure sensing
The movement of device group.
6. pulse condition collecting system as claimed in claim 1, it is characterised in that described board support includes
The longitudinal rail being connected is fixed with described base and at described guide rail for placing the base of user's wrist
The fixed structure slided, at the cantilever beam being provided above being connected with described fixed structure of described base,
Described photosensor arrays, described pressure transducer group and described driving assembly are arranged on described cantilever beam
On；The periphery of described photosensor arrays is provided with light barrier cover, the one side contacted with user's wrist
Opening is set, when user's wrist and the openings contact of described light barrier cover, in described light barrier cover
Form a darkroom.
7. pulse condition collecting system as claimed in claim 1, it is characterised in that described main control module includes
Pressure signal filtering and amplifying circuit, described pressure signal filtering and amplifying circuit includes difference amplifier, low frequency
Wave filter, one-level amplifier and two grades of amplifiers；The input of described difference amplifier and described pressure transducer
Group connects, and the outfan of described difference amplifier is defeated by described low-frequency filter and described one-level amplifier
Entering end to connect, the outfan of described one-level amplifier is connected with the input of described two grades of amplifiers；Described difference
The outfan of amplifier and the outfan of described two grades of amplifiers are all connected with described host computer.
8. a pulse-tracing collection method based on the pulse condition collecting system described in any one of claim 1 to 7,
It is characterized in that, described pulse-tracing collection method includes:
Obtain the pulse feeling pressure that user's wrist CUN, GUAN spot, chi portion are corresponding, it is judged that described pulse feeling pressure is
No reach setup pressure value；
If described pulse feeling pressure reaches setup pressure value, then obtain user's wrist CUN, GUAN spot, chi portion pair
The pulse wave signal answered；
Whether the signal quality of described pulse wave signal accessed in judging Preset Time meets is specified bar
Part；
If the signal quality of described pulse wave signal accessed in Preset Time meets specified requirements, then
Continue obtain pulse wave signal and store.
9. pulse-tracing collection method as claimed in claim 8, it is characterised in that described judgement Preset Time
Whether the signal quality of the described pulse wave signal accessed by meets specified requirements includes:
Described pulse wave signal accessed in Preset Time is filtered high-frequency noise and obtains filtering signal,
Described filtering signal is removed baseline drift and obtains steady pulse signal；
Described steady pulse signal is carried out monocycle segmentation, steady pulse signal in extracting each monocycle
Temporal signatures, calculate the variance of described temporal signatures；
Judge that whether described variance is less than the threshold value set；
If, it is determined that signal quality meets specified requirements；
If not, it is determined that signal quality is unsatisfactory for specified requirements.
10. pulse-tracing collection method as claimed in claim 8 or 9, it is characterised in that described pulse condition is adopted
Diversity method also includes:
If the signal quality of described pulse wave signal accessed in Preset Time is unsatisfactory for specified requirements,
Then prompting user adjusts wrist location.
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| CN201610402952.5A CN105962910A (en) | 2016-06-08 | 2016-06-08 | Pulse condition collection method and device |
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| CN106913319A (en) * | 2017-03-23 | 2017-07-04 | 武汉大学 | Three-stage positioning pulse condition detection device and the method for a kind of bionical pressing |
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| CN112190245A (en) * | 2020-11-06 | 2021-01-08 | 深圳市汇顶科技股份有限公司 | Blood pressure measuring device and blood pressure measuring method |
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