CN107928636B - Pulse diagnosis instrument with temperature compensation function - Google Patents
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- CN107928636B CN107928636B CN201711313824.4A CN201711313824A CN107928636B CN 107928636 B CN107928636 B CN 107928636B CN 201711313824 A CN201711313824 A CN 201711313824A CN 107928636 B CN107928636 B CN 107928636B
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 230000001629 suppression Effects 0.000 claims abstract description 42
- 210000000707 wrist Anatomy 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 23
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- 230000036541 health Effects 0.000 description 2
- 238000004171 remote diagnosis Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
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- 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
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- A—HUMAN NECESSITIES
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- 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
- 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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Abstract
The invention discloses a pulse diagnosis instrument with a temperature compensation function, which belongs to the technical field of electronic equipment and is structurally provided with a single chip microcomputer (1), a display screen module (2), a key input module (3), a serial port communication module (4), a pressure sensor module (5), a first high-fidelity signal conversion circuit (6), a first noise suppression circuit (7), a first analog-to-digital converter (8), a second high-fidelity signal conversion circuit (9), a second noise suppression circuit (10), a second analog-to-digital converter (11), a third high-fidelity signal conversion circuit (12), a third noise suppression circuit (13), a third analog-to-digital converter (14), a digital temperature sensor (15) and a wrist strap (16). The invention has the characteristics of high measurement precision, strong anti-interference capability, temperature compensation and the like, and the measurement result is conveniently transmitted to the computer, thereby providing a convenient expansion space for remote medical treatment.
Description
Technical Field
The invention belongs to the technical field of electronic equipment, and particularly relates to a pulse diagnosis instrument with a temperature compensation function.
Background
Nowadays, society develops rapidly, and people's life and work rhythm are fast, make people's life pressure grow more and more, and the health easily gets into sub-health or disease state. Traditional Chinese medicine has a plurality of effective methods for nursing the body in a sub-health state in terms of health preservation. Traditional Chinese medicine has a long history and is more unique in the world. Pulse diagnosis is an important link in the inspection, smelling, inquiry and cutting of the four diagnostic methods in traditional Chinese medicine, is one of the essences of traditional Chinese medicine, and is one of the embodiments of the basic principles of traditional Chinese medicine diagnosis. According to the traditional Chinese medicine, the qi and blood of the viscera of the human body are diseased, the blood vessel operation is affected, and the pulse condition changes, so that the pulse diagnosis can be used for clinically deducing the advance and retreat prognosis of diseases, and an objective basis is provided for the treatment of the diseases. From ancient times to present, various famous doctors accumulate abundant academic experiences for pulse diagnosis, but pulse diagnosis is determined by subjective judgment of doctors. This makes the pulse diagnosis questionable about the accuracy, reproducibility and uniformity of the disease description. How to use objective scientific instruments and figures to clearly explain the pulse-taking function is always the goal of people's efforts. Therefore, related research is carried out by a large number of scientific and technological workers in the world, and the pulse diagnosis instrument is produced along with the development of the times and the progress of science and technology.
With the rapid development of electronic technology since the last 50 s, many experts at home and abroad assume to develop a more accurate, objective and intelligent pulse diagnosis instrument for pulse diagnosis in traditional Chinese medicine by using modern scientific technology. A plurality of testing techniques and methods are applied to the pulse-taking research of traditional Chinese medicine, and modern scientific methods and means are expected to be used for converting the feeling of the doctor under the fingers into data which can be analyzed by the modern scientific and technical means and collecting and displaying the data, so that the subjective and abstract 'mental and unclear' condition is changed. According to the traditional Chinese medicine pulse diagnosis theory, the acquisition of multi-dimensional pulse condition information and the analysis of pulse condition information are carried out, and objective basis can be provided for the diagnosis and early discovery of some common clinical major diseases. The Chinese patent 'electronic pulse diagnosis instrument' with publication number CN104905771A is the closest prior art to the present invention, and the patent uses a pressure sensor to collect cun, guan and chi signals of a patient, and then uses a signal amplifier and an A/D converter to amplify and convert the collected signals into digital signals to be sent to a computer system, and the digital signals are compared with a pulse condition map stored in the computer system. This patent simple structure converts the pulse signal into the signal of telecommunication and has carried out the digitization for the doctor can carry out quantitative research to the pulse signal, and has avoided the influence of the subjective factor when different doctors are pulse taking to same pulse condition.
However, the existing pulse diagnosis technology including CN104905771A has many disadvantages, which are mainly reflected in the following aspects: 1. the pulse signals collected by the pressure sensor are input into special weak electric signals, and the existing pulse diagnosis system is easy to generate distortion when the existing pulse diagnosis system adopts a common amplifier to amplify the pulse signals; 2. the output impedance of the pressure sensor is generally large, and the impedance changes along with the change of the pressure, and the input impedance of a common voltage amplifier (such as a phase proportion amplifier, an inverse proportion amplifier and the like) is difficult to match with the output impedance, so that the normal operation of the pressure sensor is influenced; 3. environmental noise has a large influence on collected useful signals, if the collected useful signals cannot be effectively inhibited, the finally obtained waveforms are seriously distorted, and the original pulse condition cannot be truly reflected; 4. the pressure sensor is generally greatly influenced by the ambient temperature, and the acquisition result of the same pulse condition is often greatly deviated at different ambient temperatures, so that the acquisition result is not uniform.
The defects bring much inconvenience to subsequent diagnosis and analysis, and misdiagnosis is easily caused, so the existing pulse diagnosis equipment needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the traditional Chinese medicine pulse diagnosis technology in the background technology and providing a pulse diagnosis instrument with a temperature compensation function so as to achieve the aims of high measurement precision, small distortion, small influence of environmental temperature and the like.
The technical scheme adopted by the invention is as follows:
a pulse diagnosis instrument with temperature compensation function is structurally provided with a single chip microcomputer 1, a display screen module 2, a key input module 3 and a pressure sensor module 5; the structure is characterized by further comprising a serial port communication module 4, a first high-fidelity signal conversion circuit 6, a second high-fidelity signal conversion circuit 9, a third high-fidelity signal conversion circuit 12, a first noise suppression circuit 7, a second noise suppression circuit 10, a third noise suppression circuit 13, a first analog-to-digital converter 8, a second analog-to-digital converter 11, a third analog-to-digital converter 14, a digital temperature sensor 15 and a wrist strap 16;
the display screen module 2 and the serial port communication module 4 are both connected with the singlechip 1;
the pressure sensor module 5 is composed of three variable resistance type pressure sensors, one end of each pressure sensor is grounded, and the other end of each pressure sensor is respectively connected with the input ends of a first high-fidelity signal conversion circuit 6, a second high-fidelity signal conversion circuit 9 and a third high-fidelity signal conversion circuit 12;
the output end of the first high-fidelity signal conversion circuit 6 is connected with the input end of a first noise suppression circuit 7, the output end of the first noise suppression circuit 7 is connected with the analog signal input end of a first analog-to-digital converter 8, and the digital signal output end of the first analog-to-digital converter 8 is connected with the single chip microcomputer 1; the output end of the second high-fidelity signal conversion circuit 9 is connected with the input end of a second noise suppression circuit 10, the output end of the second noise suppression circuit 10 is connected with the analog signal input end of a second analog-to-digital converter 11, and the digital signal output end of the second analog-to-digital converter 11 is connected with the single chip microcomputer 1; the output end of the third high fidelity signal conversion circuit 12 is connected with the input end of a third noise suppression circuit 13, the output end of the third noise suppression circuit 13 is connected with the analog signal input end of a third analog-to-digital converter 14, and the digital signal output end of the third analog-to-digital converter 14 is connected with the single chip microcomputer 1;
the first high-fidelity signal conversion circuit 6, the second high-fidelity signal conversion circuit 9 and the third high-fidelity signal conversion circuit 12 have the same structure, and the specific structure is that an inverting input end of an operational amplifier U1A is used as an input end of the high-fidelity signal conversion circuit and is marked as a port PSensor, a resistor R1 is connected between the inverting input end and an output end of the operational amplifier U1A, an output end of the output end is connected with a non-inverting input end of the operational amplifier U1B, a resistor R2 is connected between the inverting input end and the output end of the operational amplifier U1B, an output end of the high-fidelity signal conversion circuit is marked as a port Rudepo, one end of a slide rheostat W1 is connected with a power supply VCC, the other end of the slide rheostat is grounded, a slide wire is connected with a non-inverting input end of the operational amplifier U1A and a non-inverting input end of the operational amplifier U2A, the inverting input end of the operational amplifier U2A is connected with one end of a resistor R4, one end of a resistor R5, one end of a resistor R6, the other end of the resistor R6 is grounded, and the other end of the operational amplifier U2A is connected with an output end of the resistor R4, the other end of the resistor R5 is connected with one end of a sliding rheostat W2, the slide wire of the sliding rheostat W2 is connected with the inverted input end of the operational amplifier U1B, the output end of the operational amplifier U2A is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the inverted input end of the operational amplifier U1B, the positive power ends of the operational amplifier U1A and the operational amplifier U2A are both connected with a power supply VCC, and the negative power ends are both grounded;
the first noise suppression circuit 7, the second noise suppression circuit 10 and the third noise suppression circuit 13 have the same structure, and the specific structure is that the inverting input end of the operational amplifier U2B is connected with the output end, the non-inverting input end is connected with one end of a resistor R8 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, the other end of a resistor R8 is connected with one end of a resistor R7 and one end of a capacitor C2, the other end of the resistor R7 is used as the input end of the noise suppression circuit and is recorded as a port rudel, the other end of the capacitor C2 is connected with the output end of the operational amplifier U2B, the output end of the operational amplifier U2B is connected with one end of a resistor R9, the other end of the resistor R9 is connected with one end of a capacitor C3, one end of the resistor R10 and one end of a resistor R11, the other end of the capacitor C3 is grounded, the other end of the resistor R10 is connected with the inverting input end of the operational amplifier U3A and one end of the non-inverting input end of the capacitor C A, the positive power supply end is connected with a power supply VCC, the negative power supply end is grounded, and the output end is used as the output end of the noise suppression circuit and is marked as a port PO;
the digital temperature sensor 15 is arranged in the central area of the pressure sensor module 5, and the output end of the digital temperature sensor is connected with the singlechip 1.
Preferably, the key input module 3 includes a power switch, a start button, and a view button.
Preferably, the pressure sensor module 5 is attached to the inner side of a wrist band 16, and the wrist band 16 is used to fix the pressure sensor module 5 to the wrist of the subject and cover the pulse region of the subject with the pressure sensor module 5.
Has the advantages that:
1. the invention adopts a high-fidelity signal conversion circuit and utilizes a variable coefficient nonlinear amplification technology to accurately convert the pulse signals detected by each pressure sensor into voltage signals suitable for subsequent circuit processing.
2. Aiming at the characteristics of pulse signals and noise signals, the invention designs a fourth-order noise suppression circuit before analog-to-digital conversion, and can effectively suppress the interference of environment and human body noise on the pulse signals.
3. The invention uses the digital temperature sensor to detect the environment temperature and inputs the environment temperature to the singlechip, and can realize the digital temperature compensation by the singlechip so as to eliminate the influence of the environment temperature on the detection result.
4. The invention can transmit the test result to the computer through the serial port communication module, and provides a convenient hardware basis for further function expansion of remote diagnosis and treatment and the like by utilizing the strong openness of the computer and the network.
Drawings
Fig. 1 is a schematic diagram of the physical structure of the present invention.
Fig. 2 is a schematic diagram of the electrical connection of the present invention.
Fig. 3 is a schematic diagram of the connection of the pressure sensor module 5 of the present invention to three hi-fi signal transformation circuits.
Fig. 4 is a schematic circuit diagram of a high fidelity signal conversion circuit for use in the present invention.
Fig. 5 is a schematic circuit diagram of a noise suppression circuit used in the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, wherein the device parameters shown in the drawings and the embodiments are preferred parameters, and are not intended to limit the scope of the present invention.
EXAMPLE 1 Overall Structure of the invention
The physical structure of the invention is shown in figure 1, the electrical connection is shown in figure 2, the structure of the invention comprises a singlechip 1, a display screen module 2, a key input module 3, a serial communication module 4, a pressure sensor module 5, a first high fidelity signal conversion circuit 6, a first noise suppression circuit 7, a first analog-to-digital converter 8, a second high fidelity signal conversion circuit 9, a second noise suppression circuit 10, a second analog-to-digital converter 11, a third high fidelity signal conversion circuit 12, a third noise suppression circuit 13, a third analog-to-digital converter 14, a digital temperature sensor 15 and a wrist strap 16;
As shown in figure 2, three high-fidelity signal conversion circuits are adopted behind a pressure sensor module 5 for converting output signals of three pressure sensors in the pressure sensor module 5 into high-fidelity voltage signals, the three high-fidelity signal conversion circuits have the same structure, as shown in figure 4, the specific structure is that an inverting input end of an operational amplifier U1A is used as an input end of the high-fidelity signal conversion circuit and is marked as a port PSensor, a resistor R1 is connected between the inverting input end and an output end of the operational amplifier U1A, the output end is connected with a non-inverting input end of the operational amplifier U1B, a resistor R2 is connected between the inverting input end and the output end of the operational amplifier U1B, the output end is used as an output end of the high-fidelity signal conversion circuit and is marked as a port Rudepo, one end of a slide rheostat W1 is connected with a power supply VCC, the other end of the slide wire is grounded, the non-inverting input end of the slide wire is connected with the non-inverting input end of the operational amplifier U1A and the non-inverting input end of the operational amplifier U2A, the inverting input end of the operational amplifier U2A is connected with a resistor R4, and one end of the non-inverting input end of the output end of the high-fidelity signal conversion circuit is connected with a high-fidelity signal conversion circuit, One end of a resistor R5, one end of a resistor R6, the other end of a resistor R6 is grounded, the other end of the resistor R4 is connected with the output end of an operational amplifier U2A, the other end of the resistor R5 is connected with one end of a sliding rheostat W2, a slide wire end of the sliding rheostat W2 is connected with the inverting input end of the operational amplifier U1B, the output end of the operational amplifier U2A is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the inverting input end of the operational amplifier U1B, the positive power ends of the operational amplifier U1A and the operational amplifier U2A are both connected with a power supply VCC, and the negative power ends are both grounded;
the circuit adopts a variable coefficient nonlinear amplification technology, so that the amplification coefficient of the circuit is changed along with the change of the preceding stage signal, and the resistance value change information of the preceding stage pressure sensor is converted into a voltage signal capable of being subjected to analog-to-digital conversion without distortion.
As shown in fig. 2, before performing analog-to-digital conversion on signals acquired by each pressure sensor, a noise suppression circuit is further added, each noise suppression circuit has the same structure, and the specific structure is as shown in fig. 5, an inverting input terminal and an output terminal of an operational amplifier U2B are connected, a non-inverting input terminal is connected to one end of a resistor R8 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, the other end of the resistor R8 is connected to one end of a resistor R7 and one end of a capacitor C2, the other end of the resistor R7 is used as an input terminal of the noise suppression circuit, which is denoted as a port rude pi, the other end of the capacitor C2 is connected to the output terminal of the operational amplifier U2B, the output terminal of the operational amplifier U2B is connected to one end of a resistor R9, the other end of the resistor R9 is connected to one end of a capacitor C3, one end of a resistor R10 and one end of a resistor R11, the other end of the capacitor C3 is grounded, the other end of the resistor R10 is connected to the inverting input terminal of the operational amplifier U3A and one end of the capacitor C4, the other end of the resistor R11 and the other end of the capacitor C4 are connected with the non-inverting input end of the operational amplifier U3A of the output end of the operational amplifier U3A and are grounded, the positive power supply end is connected with a power supply VCC, the negative power supply end is grounded, and the output end is used as the output end of the noise suppression circuit and is recorded as a port PO.
Because the pressure sensor for detecting the pulse signal is easily interfered by bioelectricity and environmental noise of a human body, the invention designs the noise suppression circuit aiming at the characteristics of the pulse signal and the human body and environmental noise signal, can effectively suppress noise before analog-to-digital conversion and improve the reliability of a measuring result.
Example 4 temperature compensation function of the invention
Because the environment temperature can affect the detection result of the pressure sensor, the invention designs the temperature compensation circuit, particularly, a digital temperature sensor 15(DS18B20) is arranged in the central area of the pressure sensor module 5, and the output end of the digital temperature sensor is connected with the singlechip 1; the digital temperature sensor 15 detects the ambient temperature of the pressure sensor module 5 and transmits the result to the single chip microcomputer 1, and the single chip microcomputer 1 corrects the detection result of the pressure sensor module 5 by using a temperature compensation algorithm so as to eliminate the influence caused by the change of the ambient temperature.
Example 5 working principle and procedure of the invention
Referring to fig. 1, in operation, the wrist strap 16 is firstly sleeved on the wrist of the tester, the three sensors of the pressure sensor module 5 are respectively covered on the cun, guan and chi areas of the pulse of the tester, the power switch of the invention is turned on, the display screen module 2 displays self-checking information, the standby state is displayed after the self-checking is completed, and the start button is pressed, so that the device starts to work. The pulse beat of the cun, guan and chi of the tested person generates the changed pressure, the change of the pressure leads to the change of the resistance value of the pressure sensor (which is inversely proportional to the pressure), the change of the resistance value is detected by the high-fidelity signal conversion circuit connected behind each pressure sensor, thereby the whole amplification coefficient of the corresponding high-fidelity signal conversion circuit is changed (which is inversely proportional to the resistance value), further the amplified change voltage signal is obtained at the output end, the signal passes through the corresponding noise suppression circuit, the noise signal superposed with the pulse signal can be eliminated, and then the three signals respectively enter the three corresponding analog-to-digital converters (AD7688) to be converted into digital quantity and then are sent into the singlechip 1. Meanwhile, the digital temperature sensor 15(DS18B20) detects the ambient temperature of the pressure sensor module 5 and sends the result to the single chip microcomputer 1. The single chip microcomputer 1 corrects the measurement result of the pressure sensor module according to the ambient temperature, and finally stores the corrected measurement result.
The device can be connected with a computer with an RS232 interface through a serial port communication module 4(MAX232), data stored in the device can be transmitted to the computer for further analysis, a network database can be established, and pulse information acquired by the device can be uploaded to the database through the computer, so that further extended functions such as remote diagnosis and treatment can be realized.
Claims (3)
1. A pulse diagnosis instrument with a temperature compensation function is structurally provided with a single chip microcomputer (1), a display screen module (2), a key input module (3) and a pressure sensor module (5); the structure is characterized by further comprising a serial port communication module (4), a first high-fidelity signal conversion circuit (6), a second high-fidelity signal conversion circuit (9), a third high-fidelity signal conversion circuit (12), a first noise suppression circuit (7), a second noise suppression circuit (10), a third noise suppression circuit (13), a first analog-to-digital converter (8), a second analog-to-digital converter (11), a third analog-to-digital converter (14), a digital temperature sensor (15) and a wrist strap (16); the display screen module (2) and the serial port communication module (4) are connected with the singlechip (1);
the pressure sensor module (5) is composed of three variable resistance type pressure sensors, one end of each pressure sensor is grounded, and the other end of each pressure sensor is respectively connected with the input ends of a first high fidelity signal conversion circuit (6), a second high fidelity signal conversion circuit (9) and a third high fidelity signal conversion circuit (12);
the output end of the first high-fidelity signal conversion circuit (6) is connected with the input end of a first noise suppression circuit (7), the output end of the first noise suppression circuit (7) is connected with the analog signal input end of a first analog-to-digital converter (8), and the digital signal output end of the first analog-to-digital converter (8) is connected with the single chip microcomputer (1); the output end of the second high-fidelity signal conversion circuit (9) is connected with the input end of a second noise suppression circuit (10), the output end of the second noise suppression circuit (10) is connected with the analog signal input end of a second analog-to-digital converter (11), and the digital signal output end of the second analog-to-digital converter (11) is connected with the single chip microcomputer (1); the output end of the third high-fidelity signal conversion circuit (12) is connected with the input end of a third noise suppression circuit (13), the output end of the third noise suppression circuit (13) is connected with the analog signal input end of a third analog-to-digital converter (14), and the digital signal output end of the third analog-to-digital converter (14) is connected with the single chip microcomputer (1);
the structure of the first high-fidelity signal conversion circuit (6), the second high-fidelity signal conversion circuit (9) and the third high-fidelity signal conversion circuit (12) is the same, the specific structure is that the inverting input end of an operational amplifier U1A is used as the input end of the high-fidelity signal conversion circuit and is marked as a port PSensor, a resistor R1 is connected between the inverting input end and the output end of the operational amplifier U1A, the output end is connected with the non-inverting input end of the operational amplifier U1B, a resistor R2 is connected between the inverting input end and the output end of the operational amplifier U1B, the output end is used as the output end of the high-fidelity signal conversion circuit and is marked as a port Rudepo, one end of a sliding rheostat W1 is connected with a power VCC, the other end of the sliding rheostat is grounded, the sliding wire is connected with the non-inverting input end of the operational amplifier U1A and the non-inverting input end of the operational amplifier U2A, one end of a resistor R4 of the inverting input end of the operational amplifier U2A, one end of a resistor R5, one end of a resistor R6, the other end of the resistor R6 is grounded, the other end of the operational amplifier U4 is connected with the output end of the operational amplifier U2A, the other end of the resistor R5 is connected with one end of a sliding rheostat W2, the slide wire of the sliding rheostat W2 is connected with the inverted input end of the operational amplifier U1B, the output end of the operational amplifier U2A is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the inverted input end of the operational amplifier U1B, the positive power ends of the operational amplifier U1A and the operational amplifier U2A are both connected with a power supply VCC, and the negative power ends are both grounded;
the first noise suppression circuit (7), the second noise suppression circuit (10) and the third noise suppression circuit (13) have the same structure, and the specific structure is that an inverting input end and an output end of an operational amplifier U2B are connected, a non-inverting input end is connected with one end of a resistor R8 and one end of a capacitor C1, the other end of the capacitor C1 is grounded, the other end of a resistor R8 is connected with one end of a resistor R7 and one end of a capacitor C2, the other end of the resistor R7 is used as an input end of the noise suppression circuit and is marked as a port RudePI, the other end of a capacitor C2 is connected with an output end of an operational amplifier U2B, an output end of the operational amplifier U2B is connected with one end of a resistor R9, the other end of a resistor R9 is connected with one end of a capacitor C3, one end of a resistor R10 and one end of a resistor R11, the other end of a capacitor C3 is grounded, the other end of a resistor R10 is connected with an inverting input end of an operational amplifier U3A and one end of a capacitor C8653, the positive power supply end is connected with a power supply VCC, the negative power supply end is grounded, and the output end is used as the output end of the noise suppression circuit and is marked as a port PO; wherein, the resistances of the resistors R7-R11 are 9.31 Komega, 4.7 Komega and 9.31 Komega in sequence; the values of the capacitors C1-C4 are 1nF, 2nF, 4nF and 1nF in sequence;
the digital temperature sensor (15) is arranged in the central area of the pressure sensor module (5), and the output end of the digital temperature sensor is connected with the singlechip (1);
the models of the operational amplifier U1A, the operational amplifier U1B, the operational amplifier U2A, the operational amplifier U2B and the operational amplifier U3A are TLC 2252.
2. The pulse diagnosis instrument with temperature compensation function according to claim 1, wherein the key input module (3) comprises a power switch, a start button and a view button.
3. The pulse diagnosis instrument with temperature compensation function according to claim 1 or 2, wherein the pressure sensor module (5) is attached to the inner side of the wrist strap (16), and the wrist strap (16) is used for fixing the pressure sensor module (5) on the wrist of the testee and enabling the pressure sensor module (5) to cover the pulse area of the testee.
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| CN109805897A (en) * | 2019-03-19 | 2019-05-28 | 北京小成素问信息技术有限公司 | Diagnosis by feeling the pulse pen |
| CN112190242A (en) * | 2020-11-06 | 2021-01-08 | 维沃移动通信有限公司 | Wearable device and heart rate parameter detection method |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739640A (en) * | 1971-02-08 | 1973-06-19 | Wisconsin Alumni Res Found | Electromagnetic flowmeters for blood or other conductive fluids |
| CN2085521U (en) * | 1990-12-13 | 1991-09-25 | 中国石油化工总公司奎阳石油化纤公司 | Portable pressure signal generator |
| US7468038B2 (en) * | 2005-12-20 | 2008-12-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Non-invasive electronic method and apparatus for measuring blood pressure |
| US20100308907A1 (en) * | 2009-06-08 | 2010-12-09 | Edan Instruments, Inc. | Type of High-Performance DC Amplification Device for Bioelectrical Signal Collection |
| CN102156019B (en) * | 2011-03-28 | 2013-11-27 | 豪展医疗科技股份有限公司 | Pressure sensor |
| CN102144916B (en) * | 2011-04-21 | 2013-01-23 | 华东理工大学 | Multi-channel pulse signal detecting method and device capable of automatically regulating pressure |
| CN202489940U (en) * | 2011-12-23 | 2012-10-17 | 中国计量学院 | Pulse condition information collecting system |
| KR20140022493A (en) * | 2012-08-13 | 2014-02-25 | 한국전기연구원 | Pulse sensors equipped with temperature sensors and system using the same |
| CN103234689A (en) * | 2013-04-24 | 2013-08-07 | 武汉航空仪表有限责任公司 | Circuit of high-accuracy pressure transmitter |
| CN104296919B (en) * | 2014-09-15 | 2017-07-11 | 青岛航天半导体研究所有限公司 | A kind of non-linear compensation circuit of resistance bridge type sensor |
| CN104305983A (en) * | 2014-10-10 | 2015-01-28 | 陕西高新实业有限公司 | Practical pulse cardiotachometer |
| CN104373980B (en) * | 2014-10-28 | 2017-01-25 | 浙江帅康电气股份有限公司 | Pressure sensitive touch type keying operation range hood |
| CN105286823B (en) * | 2015-10-13 | 2018-05-04 | 吉林大学 | Wearable self-powered multi-physiological-parameter monitoring device and monitoring method |
| CN105748089B (en) * | 2016-02-01 | 2018-10-26 | 刘进 | A kind of oxygen is for parameter monitoring method and monitoring device |
| CN105662368B (en) * | 2016-03-04 | 2019-10-25 | 北京中科芯健医疗科技有限公司 | Pulse wave spectrum sensor, pulse wave spectrum diagnosis and therapy system and health service platform |
| CN106129790B (en) * | 2016-09-05 | 2019-06-07 | 吉林大学 | A kind of digital laser pumping source |
| CN106500779B (en) * | 2016-12-27 | 2023-04-18 | 中国计量大学 | Vortex street signal detection device with feedforward controller and stochastic resonance |
| CN107440694A (en) * | 2016-12-29 | 2017-12-08 | 林帆 | A kind of individualized intelligent diagnosis by feeling the pulse instrument system and analysis method based on proportion measurement method |
| CN106936396A (en) * | 2017-04-26 | 2017-07-07 | 成都万家健康管理股份有限公司 | A kind of modulate circuit of Vibration Signal in Frequency Domain |
-
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