CN108095702A - A kind of automatic constant pressure pulse signal collecting transmitter based on array sensing - Google Patents
A kind of automatic constant pressure pulse signal collecting transmitter based on array sensing Download PDFInfo
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- CN108095702A CN108095702A CN201711314383.XA CN201711314383A CN108095702A CN 108095702 A CN108095702 A CN 108095702A CN 201711314383 A CN201711314383 A CN 201711314383A CN 108095702 A CN108095702 A CN 108095702A
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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
- A61B5/68—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
-
- 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
- A61B5/6843—Monitoring or controlling sensor contact pressure
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0242—Operational features adapted to measure environmental factors, e.g. temperature, pollution
- A61B2560/0247—Operational features adapted to measure environmental factors, e.g. temperature, pollution for compensation or correction of the measured physiological value
- A61B2560/0252—Operational features adapted to measure environmental factors, e.g. temperature, pollution for compensation or correction of the measured physiological value using ambient temperature
Abstract
A kind of automatic constant pressure pulse signal collecting transmitter based on array sensing of the present invention belongs to the technical field of electronic equipment, structure has microcontroller (1), display panel module (2), keyboard input module (3), bluetooth communication (4), pressure sensor module (5), waveform acquisition module (6), high fidelity signals translation circuit (7), noise suppression circuit (8), first analog-digital converter (9), temperature sensor (10), temperature-compensation circuit (11), second analog-digital converter (12), baroceptor (13), inflator pump (14), vent valve (15), inflate wrist strap (16).The present invention has the characteristics that high certainty of measurement, strong antijamming capability, influenced by ambient temperature small, and can automatic inflating level pressure, measurement result facilitates mobile phone to check, is expanding space of providing a convenient of tele-medicine.
Description
Technical field
The invention belongs to the technical field of electronic equipment, more particularly to a kind of automatic constant pressure pulse letter based on array sensing
Number collecting transmitter.
Background technology
Social development is rapid now, and people's live and work rhythm is all quickly so that and people’s lives pressure is increasing,
Body is easily accessible inferior health or morbid state.The traditional Chinese medical science raises the body being in sub-health state in health, has very much
Effective method.The traditional Chinese medical science has long history, is even more to take the course of its own in the world.Diagnosis by feeling the pulse is that the traditional Chinese medical science is hoped, hears, asks, cut
Important link in " four methods of diagnosis ", is one of marrow of the traditional Chinese medical science, is a kind of embodiment of tcm diagnosis basic principle " in carrying outside department ".In
Medicine thinks that lesion occurs for viscera qi and blood, and blood vessels operation will be affected, and pulse condition just changes, therefore diagnosis by feeling the pulse is being faced
The advance and retreat prognosis of deducibility disease on bed, objective basis is provided for the treatment of disease.Each from ancient times to the present name doctor accumulates for diagnosis by feeling the pulse
Abundant Academic Experience, but diagnosis by feeling the pulse is all to determine the state of an illness by doctor's subjective judgement.This causes diagnosis by feeling the pulse result to disease description
Accuracy, reproducibility and uniformity be under suspicion.How with objective scientific instrument, the function of diagnosis by feeling the pulse is explained with number
It is clear, it is always the target that people make great efforts.Numerous scientific workers worldwide expand correlative study therefore, with
The developing of epoch, the progress of science and technology, pulse-taking instrument come into being.
Since the fifties in last century, with the fast development of electronic technology, many experts both at home and abroad, which just imagine, passes through profit
With modern science and technology, develop can be used for pulse wave spectrum it is more accurate, objectify and intelligentized pulse-taking instrument.With a variety of surveys
Examination technology and method are directed to pulse wave spectrum research, it is expected the ways and means with modern science, and the sensation under doctor is referred to turns
It changes the data that can be analyzed using modern science and technology means into, and is gathered and shown, so as to change that
The situation of subjective, abstract " know clearly in the heart, refer to lower hardly possible bright ".It is theoretical according to pulse wave spectrum, carry out the acquisition of pulse condition multidimensional information
It is analyzed with pulse condition information, objective basis can be provided for the diagnosis and early detection of some clinical common major diseases.Publication No.
The Chinese patent " electronics pulse-taking instrument " of CN104905771A is to be passed with the immediate prior art of the present invention, the patent using pressure
Sensor gathers the cun,guan,chi signal of patient, recycles signal amplifier and A/D converter that the signal of acquisition is amplified and converted
Computer system is sent into digital signal, is compared with the pulse condition collection of illustrative plates stored in computer system.The patent structure is simple,
Pulse signal is converted into electric signal and is digitized so that doctor can carry out quantitative study to pulse signal, and avoid
The influence of subjective factor when different doctors feel the pulse to same pulse condition.
But the existing diagnosis by feeling the pulse technology including CN104905771A is mainly reflected in following also there are shortcomings
Aspect：1st, the pulse signal of pressure sensor acquisition is defeated in special ultra-weak electronic signal, and existing diagnosis by feeling the pulse system is using common
Amplifier easily generate distortion when being amplified to it；2nd, the output impedance of pressure sensor is generally large, and with pressure
Transforming impedance can change, and common voltage amplifier (such as in-phase proportion amplifier, reverse phase proportional amplifier etc.)
Input impedance be difficult to it is matched, so as to influence the normal work of pressure sensor；3rd, ambient noise is to the useful signal of acquisition
It is affected, such as cannot effectively inhibit, then the waveform finally obtained can be made to have serious distortion, it is impossible to the original arteries and veins of actual response
As；4th, pressure sensor is generally influenced by environmental temperature, at different ambient temperatures, past to the collection result of same pulse condition
It is past to have very big offset so that collection result does not have uniformity.
The above defect all brings many inconvenience to subsequent diagnosis, analysis, it is easy to cause mistaken diagnosis, therefore existing arteries and veins
Examine equipment also need to it is further perfect.
The content of the invention
The technical problem to be solved by the present invention is to overcome in background technology existing for existing pulse signal acquisition technique not
Foot, provides a kind of automatic constant pressure pulse signal collecting transmitter based on array sensing, to reach high certainty of measurement, distortion
It is small, influenced by ambient temperature small and it is convenient remotely check etc. for the purpose of.
The technical solution that the present invention takes is as follows：
A kind of automatic constant pressure pulse signal collecting transmitter based on array sensing, structure have microcontroller 1, display screen
Module 2, keyboard input module 3, pressure sensor module 5,6 and first analog-digital converter 9 of waveform acquisition module；Its feature exists
In structure also has bluetooth communication 4, high fidelity signals translation circuit 7, noise suppression circuit 8, temperature sensor 10, temperature
Compensation circuit 11, the second analog-digital converter 12, baroceptor 13, inflator pump 14, vent valve 15, inflation wrist strap 16；
The display panel module 2, bluetooth communication 4 are connected with microcontroller 1；
The pressure sensor module 5 is the row rheostat array of pressure sensors of 8 rows × 16；
The structure of the waveform acquisition module 6 is that 16 select 16 of an analog switch chip to select input terminal difference
It is connected with 16 column address ends of pressure sensor module 5, public output ground connection, control terminal is connected with microcontroller 1；Eight select one
8 selection input terminals of analog switch chip are connected respectively with 8 row address ends of pressure sensor module 5, public output
The input terminal of high fidelity signals translation circuit is connect, control terminal is connected with microcontroller 1；
The structure of the high fidelity signals translation circuit 7 is that the inverting input of amplifier U1A becomes as high fidelity signals
The input terminal of circuit 7 is changed, is denoted as port PSensor, the eight public output for selecting an analog switch chip in welding wave acquisition module 6
End, the inverting input of amplifier U1A and the indirect resistance R1 of output terminal, the in-phase input end of output termination amplifier U1B, amplifier
The inverting input of U1B and the indirect resistance R2 of output terminal, output terminal of the output terminal as high fidelity signals translation circuit 7, note
For port RudePO, the input terminal of noise suppression circuit 8 is connect；A termination power VCC of slide rheostat W1, other end ground connection,
The in-phase input end of slip termination amplifier U1A and the in-phase input end of amplifier U2A, the anti-phase input terminating resistor R4 of amplifier U2A
One end, one end, one end of resistance R6 of resistance R5, resistance R6 the other end ground connection, another termination amplifier U2A's of resistance R4
Output terminal, one end of another termination slide rheostat W2 of resistance R5, the reverse phase of the slip termination amplifier U1B of slide rheostat W2
Input terminal, one end of the output terminating resistor R3 of amplifier U2A, the inverting input of another termination amplifier U1B of resistance R3, amplifier
The positive power source terminal of U1A and amplifier U2A all meet power supply VCC, and negative power end is all grounded；
In the high fidelity signals translation circuit 7, each element preferred parameter is as follows：Resistance R1：10k Ω, resistance R2~
Resistance R4, resistance R6 are 51k Ω, resistance R5：10k Ω, slide rheostat W1, slide rheostat W2 are 100k Ω；Amplifier
U1A, amplifier U1B, amplifier U2A are TLC2252；
The structure of the noise suppression circuit 8 is that the inverting input of amplifier U2B is connected with output terminal, homophase input
One end of terminating resistor R8 and one end of capacitance C1, the other end ground connection of capacitance C1, the one of another terminating resistor R7 of resistance R8
End and one end of capacitance C2, the input terminal of the other end of resistance R7 as noise suppression circuit 8, are denoted as port RudePI, connect height
The output terminal of Fidelity signal translation circuit 7, the output terminal of another termination amplifier U2B of capacitance C2, the output termination electricity of amplifier U2B
Hinder one end of R9, one end of one end of another termination capacitor C3 of resistance R9, one end of resistance R10 and resistance R11, capacitance C3's
The other end is grounded, the inverting input of another termination amplifier U3A of resistance R10 and one end of capacitance C4, the other end of resistance R11
It is grounded with the in-phase input end of the output terminal amplifier U3A of another termination amplifier U3A of capacitance C4, positive supply termination power VCC is born
Power end is grounded, and output terminal of the output terminal as noise suppression circuit 8 is denoted as port PO, connects the simulation of the first analog-digital converter 9
Signal input part；
In the noise suppression circuit 8, each element preferred parameter is as follows：Resistance R7, resistance R8, resistance R9, resistance R11
It is 9.31k Ω, resistance R10 is 4.7k Ω, capacitance C1：1nF, capacitance C2：2nF, capacitance C3：4nF, capacitance C4：1nF, amplifier
U2B, amplifier U3A are TLC2252；
The structure of the temperature-compensation circuit 11 is that the minus earth of zener diode D1, anode connects the same of amplifier U3B
One end of phase input terminal and resistance R12, inverting input and the capacitance C5 of another termination power VCC of resistance R12, amplifier U1B
One end, the emitter of triode Q1 be connected with the end of slide wire of slide rheostat W3, a terminating resistor R14 of slide rheostat W3
One end, the other end ground connection of resistance R14, the output terminal of another termination amplifier U3B of capacitance C5 and one end of resistance R13, electricity
The base stage of another termination triode Q1 of R13, one end of the collector connecting resistance R17 of triode Q1 are hindered, and is used as temperature-compensating
The input cathode of circuit 11 is denoted as port NTC-, the inverting input of another termination amplifier U4A of resistance R17, amplifier U4A
Inverting input and output terminal indirect resistance R18, one end of homophase input terminating resistor R15 and one end of resistance R16, electricity
Hinder the other end ground connection of R16, another termination power VCC of resistance R15, and as the input anode of temperature-compensation circuit 11,
Port NTC+ is denoted as, the positive supply termination power VCC of amplifier U4A, negative power end ground connection, output terminal is as temperature-compensation circuit 11
Output terminal, be denoted as port TemCOMP, be connected with the input end of analog signal of the second analog-digital converter 12；
First analog-digital converter 9 and the digital signal output end of the second analog-digital converter 12 with 1 phase of microcontroller
Even；
The baroceptor 13 is positioned in inflation wrist strap 16, and output terminal is connected with microcontroller 1；
The control terminal of the inflator pump 14 is connected with microcontroller 1, and inflating port is connected with inflation wrist strap 16；
The vent valve 15 is the deflation valve for inflating wrist strap 16, and control terminal is connected with microcontroller 1.
Preferably, the keyboard input module 3 has power switch, start button, checks button.
Preferably, the temperature sensor 10 is positioned over the central area of pressure sensor module 5, and positive and negative electrode
It is connected respectively with the input terminal positive and negative electrode of temperature-compensation circuit 11.
Advantageous effect：
1st, the present invention is using high fidelity signals translation circuit, using the non-linear amplifying technique of variable coefficient, by pressure signal essence
Really it is converted into the voltage signal for being suitble to subsequent conditioning circuit processing.
2nd, the present invention is directed to the characteristics of pulse signal and noise signal, and quadravalence noise suppressed is designed with before analog-to-digital conversion
Circuit can effectively inhibit the interference of environment and human body noise to pulse signal.
3rd, the present invention eliminates influence of the variation of ambient temperature to pressure sensor using temperature-compensation circuit.
4th, the present invention coordinates baroceptor using automatic inflation type wrist strap, can precise calibration pressure sensor and tested portion
Initial pressure between position makes test result have unified comparativity.
5th, test result can be sent to smart mobile phone by the present invention by bluetooth communication, utilize smart mobile phone and network
Powerful opening, provide convenient hardware foundation for the further Function Extension such as remote diagnosis.
Description of the drawings
Fig. 1 is the physical arrangement schematic diagram of the present invention.
Fig. 2 is the electrical connection schematic diagram of the present invention.
Fig. 3 is pressure sensor module 5 and the connection diagram of waveform acquisition module 6 in the present invention.
Fig. 4 is the basic circuit diagram of the high fidelity signals translation circuit 7 used in the present invention.
Fig. 5 is the basic circuit diagram of the noise suppression circuit 8 used in the present invention.
Fig. 6 is the basic circuit diagram for the temperature-compensation circuit 11 that the present invention uses.
Specific embodiment
The implementation of the present invention is specifically described below in conjunction with the accompanying drawings, the device ginseng marked in accompanying drawings and embodiments
Number is preferred parameter rather than the limitation to protection scope of the present invention.
The overall structure of 1 present invention of embodiment
The present invention physical arrangement as shown in Figure 1, electrical connection as shown in Fig. 2, the present invention structure include microcontroller 1,
Display panel module 2, keyboard input module 3, bluetooth communication 4, pressure sensor module 5, waveform acquisition module 6, high-fidelity
Signal conversion circuit 7, noise suppression circuit 8, the first analog-digital converter 9, temperature sensor 10, temperature-compensation circuit 11, second
Analog-digital converter 12, baroceptor 13, inflator pump 14, vent valve 15, inflation wrist strap 16.
The high fidelity signals translation circuit of 2 present invention of embodiment
As shown in figure 4, the present invention employs a high fidelity signals translation circuit after waveform acquisition circuit, it is specific to tie
Structure is, the input terminal of the inverting input of amplifier U1A as high fidelity signals translation circuit 7 is denoted as port PSensor, connects ripple
Eight common ports for selecting an analog switch chip, the inverting input of amplifier U1A and the indirect resistance of output terminal in shape acquisition module 6
R1, the in-phase input end of output termination amplifier U1B, the inverting input of amplifier U1B and the indirect resistance R2 of output terminal, output terminal
As the output terminal of high fidelity signals translation circuit 7, port RudePO is denoted as, connects the input terminal of noise suppression circuit 8；It slides and becomes
Hinder a termination power VCC of device W1, other end ground connection, the in-phase input end of slip termination amplifier U1A is same mutually defeated with amplifier U2A's
Enter end, one end of anti-phase input terminating resistor R4, one end of resistance R5, one end of resistance R6 of amplifier U2A, resistance R6's is another
End ground connection, the output terminal of another termination amplifier U2A of resistance R4, one end of another termination slide rheostat W2 of resistance R5 are sliding
The inverting input of the slip termination amplifier U1B of dynamic rheostat W2, one end of the output terminating resistor R3 of amplifier U2A, resistance R3
Another termination amplifier U1B inverting input, the positive power source terminal of amplifier U1A and amplifier U2A all connects power supply VCC, negative power end
All it is grounded.
The circuit uses the non-linear amplifying technique of variable coefficient, and the amplification coefficient of circuit is made to change with the change of prime signal
Become, so as to which the change in resistance information of forepressure sensor to be converted into carry out without distortion to the voltage signal of analog-to-digital conversion.
The noise suppression circuit of 3 present invention of embodiment
As shown in figure 5, the present invention is also added into noise suppression circuit, concrete structure is amplifier before analog-to-digital conversion
The inverting input of U2B is connected with output terminal, and one end of homophase input terminating resistor R8 and one end of capacitance C1, capacitance C1's is another
One end is grounded, one end of another terminating resistor R7 of resistance R8 and one end of capacitance C2, and the other end of resistance R7 presses down as noise
The input terminal of circuit 8 processed, is denoted as port RudePI, connects the output terminal of high fidelity signals translation circuit 7, another termination of capacitance C2
The output terminal of amplifier U2B, one end of the output terminating resistor R9 of amplifier U2B, one end of another termination capacitor C3 of resistance R9, electricity
Hinder one end of R10 and one end of resistance R11, the other end ground connection of capacitance C3, the reverse phase of another termination amplifier U3A of resistance R10
The output terminal amplifier U3A of one end of input terminal and capacitance C4, the other end of resistance R11 and another termination amplifier U3A of capacitance C4
In-phase input end ground connection, positive supply termination power VCC, negative power end ground connection, output of the output terminal as noise suppression circuit 8
End, is denoted as port PO, connects the input end of analog signal of the first analog-digital converter 9.
Since the pressure sensor of detection pulse signal is easily disturbed by human biological electricity and ambient noise, this hair
Bright the characteristics of being directed to pulse signal and human body and ambient noise signal, noise suppression circuit is devised, can be had before analogue-to-digital
Effect inhibits noise, improves the reliability of measurement result.
The temperature-compensation circuit of 4 present invention of embodiment
As shown in fig. 6, temperature-compensation circuit has also been devised in the present invention, concrete structure is that the cathode of zener diode D1 connects
Ground, anode meet the in-phase input end of amplifier U3B and one end of resistance R12, another termination power VCC, amplifier U1B of resistance R12
Inverting input be connected with the end of slide wire of one end of capacitance C5, the emitter of triode Q1 and slide rheostat W3, slide become
Hinder one end of a terminating resistor R14 of device W3, the other end ground connection of resistance R14, the output of another termination amplifier U3B of capacitance C5
End and one end of resistance R13, the base stage of another termination triode Q1 of resistance R13, the collector connecting resistance R17's of triode Q1
One end, and as the input cathode of temperature-compensation circuit 11, port NTC- is denoted as, another termination amplifier U4A's of resistance R17
Inverting input, the inverting input of amplifier U4A and the indirect resistance R18 of output terminal, one end of homophase input terminating resistor R15
With one end of resistance R16, the other end of resistance R16 is grounded, another termination power VCC of resistance R15, and as temperature-compensating electricity
The input anode on road 11 is denoted as port NTC+, the positive supply termination power VCC of amplifier U4A, negative power end ground connection, output terminal
As the output terminal of temperature-compensation circuit 11, port TemCOMP is denoted as, the input end of analog signal with the second analog-digital converter 12
It is connected.
When environment temperature changes, which can effectively eliminate the measurement error that temperature change is brought.
The operation principle and process of 5 present invention of embodiment
With reference to figure 1, during work, first inflation wrist strap 16 is sleeved in the wrist of tester, and makes pressure sensor module 5
The power switch of the present invention, 2 meeting of display panel module are opened in the cun,guan,chi region of sensor array coverage test person's pulse
It shows self-test information, shows armed state after the completion of self-test, press start button, inflator pump is in microcontroller 1 (STC89C52)
Inflation wrist strap 16 is inflated automatically under control, and wrist strap pressure is detected by baroceptor 13 (GY-65BMP085) in real time,
Inflation is automatically stopped after reaching preset pressure, microcontroller 1 controls 16 in waveform acquisition module 6 to select an analog switch chip
(CD4067) and eight select an analog switch chip (MAX4781), to (8 rows × 16 row, 128 rheostats of array of pressure sensors 5
Array of pressure sensors) each point pressure procession scanning, the pressure sensor in cun,guan,chi position due to pulse believe
Number presence, can detect the variation of pressure, other regions do not have pressure change then due to no pulse, at cun,guan,chi
Pressure change cause the change in resistance (being inversely proportional with pressure) of pressure sensor, which converts electricity by high fidelity signals
Road 7 detects, so that the whole amplification coefficient of high fidelity signals translation circuit 7 changes and (is inversely proportional with resistance value), and then
In the variation voltage signal that output terminal is amplified, the signal is after noise suppression circuit 8, the noise that is superimposed with pulse signal
Signal can be eliminated, and being converted into digital quantity then into the first analog-digital converter 9 (AD7688) is re-fed into microcontroller 1.Together
When, the environment temperature residing for temperature sensor 10 (25 DEG C of thermistors of MF11-10k@) detection pressure sensor assembly 5, by temperature
Degree compensation circuit 11 is converted into voltage and is converted into being sent into microcontroller after digital quantity by the second analog-digital converter 12 (AD7688)
1.The information that microcontroller 1 gathers array of pressure sensors each point is compared, and extracts the pulse letter of useful cun,guan,chi
Breath, and measurement result is modified according to environment temperature, finally revised measurement result is stored, and controls vent valve 15
Air in release inflation wrist strap 16.
By checking button, it can check in system and gather the information of storage, by bluetooth communication 4 (MS47SF3) originally
Invention can be achieved to communicate with smart mobile phone, and after smart mobile phone is matched with it, the acquisition information that is stored in readable device can be with
Network data base is established, it is remote to realize in the database that the pulse information for being collected the device of the invention by mobile phone uploads
The further expanded function such as journey diagnosis and treatment.
Claims (5)
1. a kind of automatic constant pressure pulse signal collecting transmitter based on array sensing, structure have microcontroller (1), display screen
Module (2), keyboard input module (3), pressure sensor module (5), waveform acquisition module (6) and the first analog-digital converter (9)；
It is characterized in that, structure also has bluetooth communication (4), high fidelity signals translation circuit (7), noise suppression circuit (8), temperature
Sensor (10), temperature-compensation circuit (11), the second analog-digital converter (12), baroceptor (13), inflator pump (14), deflation
Valve (15), inflation wrist strap (16)；
The display panel module (2), bluetooth communication (4) are connected with microcontroller (1)；
The pressure sensor module (5) is the row rheostat array of pressure sensors of 8 rows × 16；
The structure of the waveform acquisition module (6) is, 16 select 16 of an analog switch chip select input terminals respectively with
16 column address ends of pressure sensor module (5) are connected, and public output ground connection, control terminal is connected with microcontroller (1)；Eight choosings
8 selection input terminals of one analog switch chip are connected respectively with 8 row address ends of pressure sensor module (5), public defeated
Go out to terminate the input terminal of high fidelity signals translation circuit, control terminal is connected with microcontroller (1)；
The structure of the high fidelity signals translation circuit (7) is that the inverting input of amplifier U1A is converted as high fidelity signals
The input terminal of circuit (7) is denoted as port PSensor, and eight select the public defeated of an analog switch chip in welding wave acquisition module (6)
Outlet, the inverting input of amplifier U1A and the indirect resistance R1 of output terminal, the in-phase input end of output termination amplifier U1B, amplifier
The inverting input of U1B and the indirect resistance R2 of output terminal, output terminal of the output terminal as high fidelity signals translation circuit (7),
Port RudePO is denoted as, connects the input terminal of noise suppression circuit (8)；A termination power VCC of slide rheostat W1, another termination
Ground, the in-phase input end of slip termination amplifier U1A and the in-phase input end of amplifier U2A, the anti-phase input terminating resistor of amplifier U2A
One end of R4, one end of resistance R5, one end of resistance R6, the other end ground connection of resistance R6, another termination amplifier U2A of resistance R4
Output terminal, one end of another termination slide rheostat W2 of resistance R5, the slip termination amplifier U1B's of slide rheostat W2 is anti-
Phase input terminal, one end of the output terminating resistor R3 of amplifier U2A, the inverting input of another termination amplifier U1B of resistance R3, fortune
The positive power source terminal for putting U1A and amplifier U2A all meets power supply VCC, and negative power end is all grounded；
The structure of the noise suppression circuit (8) is that the inverting input of amplifier U2B is connected with output terminal, in-phase input end
One end of connecting resistance R8 and one end of capacitance C1, the other end ground connection of capacitance C1, one end of another terminating resistor R7 of resistance R8
With one end of capacitance C2, the input terminal of the other end of resistance R7 as noise suppression circuit (8) is denoted as port RudePI, connects height
The output terminal of Fidelity signal translation circuit (7), the output terminal of another termination amplifier U2B of capacitance C2, the output termination of amplifier U2B
One end of resistance R9, one end of one end of another termination capacitor C3 of resistance R9, one end of resistance R10 and resistance R11, capacitance C3
Other end ground connection, the inverting input of another termination amplifier U3A of resistance R10 and one end of capacitance C4, resistance R11's is another
The in-phase input end ground connection of the output terminal amplifier U3A of another termination amplifier U3A of end and capacitance C4, positive supply termination power VCC,
Negative power end is grounded, and output terminal of the output terminal as noise suppression circuit (8) is denoted as port PO, connects the first analog-digital converter (9)
Input end of analog signal；
The structure of the temperature-compensation circuit (11) is the minus earth of zener diode D1, and anode connects the same phase of amplifier U3B
One end of input terminal and resistance R12, the inverting input of another termination power VCC of resistance R12, amplifier U1B are with capacitance C5's
One end, the emitter of triode Q1 are connected with the end of slide wire of slide rheostat W3, a terminating resistor R14's of slide rheostat W3
One end, the other end ground connection of resistance R14, the output terminal of another termination amplifier U3B of capacitance C5 and one end of resistance R13, resistance
The base stage of another termination triode Q1 of R13, one end of the collector connecting resistance R17 of triode Q1, and as temperature-compensating electricity
The input cathode on road (11) is denoted as port NTC-, the inverting input of another termination amplifier U4A of resistance R17, amplifier U4A
Inverting input and output terminal indirect resistance R18, one end of homophase input terminating resistor R15 and one end of resistance R16, electricity
The other end ground connection of R16, another termination power VCC of resistance R15 are hindered, and the input as temperature-compensation circuit (11) is rectified
Pole is denoted as port NTC+, and the positive supply termination power VCC of amplifier U4A, negative power end ground connection, output terminal is as temperature-compensating electricity
The output terminal on road (11), is denoted as port TemCOMP, is connected with the input end of analog signal of the second analog-digital converter (12)；
First analog-digital converter (9) and the digital signal output end of the second analog-digital converter (12) with microcontroller (1)
It is connected；
The baroceptor (13) is positioned in inflation wrist strap (16), and output terminal is connected with microcontroller (1)；
The control terminal of the inflator pump (14) is connected with microcontroller (1), and inflating port is connected with inflation wrist strap (16)；
The vent valve (15) is the deflation valve for inflating wrist strap (16), and control terminal is connected with microcontroller (1).
2. a kind of automatic constant pressure pulse signal collecting transmitter based on array sensing according to claim 1, special
Sign is, in the high fidelity signals translation circuit (7), each element uses following parameter：Resistance R1：10k Ω, resistance R2~
Resistance R4, resistance R6 are 51k Ω, resistance R5：10k Ω, slide rheostat W1, slide rheostat W2 are 100k Ω；Amplifier
U1A, amplifier U1B, amplifier U2A are TLC2252.
3. a kind of automatic constant pressure pulse signal collecting transmitter based on array sensing according to claim 1, special
Sign is, in the noise suppression circuit (8), each element uses following parameter：Resistance R7, resistance R8, resistance R9, resistance
R11 is 9.31k Ω, and resistance R10 is 4.7k Ω, capacitance C1：1nF, capacitance C2：2nF, capacitance C3：4nF, capacitance C4：1nF, fortune
Put U2B, amplifier U3A is TLC2252.
4. a kind of automatic constant pressure pulse signal collecting transmitter based on array sensing according to claim 1, special
Sign is that the keyboard input module (3) has power switch, start button, checks button.
5. according to a kind of any automatic constant pressure pulse signal acquisition transmission dress based on array sensing of Claims 1 to 4
It puts, which is characterized in that the temperature sensor (10) is positioned over the central area of pressure sensor module (5), and positive and negative electrode
The input terminal positive and negative electrode with temperature-compensation circuit (11) is connected respectively.
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