CN114732381A - Multifunctional physiological and biochemical parameter detection system and use method - Google Patents
Multifunctional physiological and biochemical parameter detection system and use method Download PDFInfo
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Abstract
The invention relates to a multifunctional physiological and biochemical parameter detection system and a use method thereof, wherein the system comprises a portable vital sign monitor, a mobile terminal, a cloud server and a data processing center which are connected in sequence; the portable vital sign monitor is used for detecting human vital sign data, displaying the human vital sign data on the mobile terminal and sending the human vital sign data to the cloud server in real time, wherein the cloud server is used for receiving and storing the human vital sign data and sending the human vital sign data to the data processing center in real time, and the data processing center analyzes the human vital sign data, gives an analysis result and feeds back the human vital sign data to the mobile terminal for displaying. The multifunctional vital sign detection system can be used for monitoring the following vital signs and indexes of a human body in a hospital or in an environment outside the hospital, is suitable for patients needing to monitor the vital signs and indexes due to various acute and chronic diseases, and better grasps and manages healthy and sub-healthy people of physical conditions.
Description
Technical Field
The invention relates to a multifunctional physiological and biochemical parameter detection system and a using method thereof, belonging to the technical field of NMPA (N-methyl pyrrolidone) second-class medical monitoring instruments.
Background
At present, in China and other countries around the world, an increasing number of people suffer from various long-term and chronic diseases, such as hypertension, cardiac arrhythmia, coronary heart disease, diabetes and the like. These diseases increase the risk of stroke, leading to the massive occurrence of diabetic syndrome, and many patients suffering from this condition are not treated properly and timely due to lack of awareness or difficulty in diagnosis. For a long time, due to the lack of an NMPA approved mobile medical data collector, patients and doctors have difficulty in monitoring vital sign parameters in real time, and the treatment of physical health and emergency conditions is seriously influenced.
Chinese patent CN108364690A discloses a multifunctional vital sign detection system and a working method thereof, comprising a portable vital sign monitor, a mobile terminal, a cloud server, and a data processing center, which are connected in sequence; the portable vital sign monitor is used for detecting human vital sign data, displaying the human vital sign data on the mobile terminal and sending the human vital sign data to the cloud server in real time; the cloud server receives the human body vital sign data, stores the human body vital sign data and sends the human body vital sign data to the data processing center in real time; the data processing center analyzes the human body vital sign data, gives an analysis result and feeds the analysis result back to the mobile terminal for displaying. However, the application lacks a blood pressure detection module, and the application only measures body fat through body fat software, and the body fat detection structure is not improved, so that the invention is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multifunctional physiological and biochemical parameter detection system and a using method thereof.
Interpretation of terms:
1. electrocardio, electrocardiogram;
2. blood oxygen, blood oxygen saturation;
3. HR, heart rate;
4. PPG, photoplethysmography;
5. PWTT, pulse wave transit time.
The technical scheme of the invention is as follows:
a multifunctional physiological and biochemical parameter detection system comprises a portable vital sign monitor, a mobile terminal, a cloud server and a data processing center which are connected in sequence;
the portable vital sign monitor is used for detecting vital sign data of a human body, the vital sign data of the human body is displayed on the mobile terminal and is sent to the cloud server in real time, the vital sign data of the human body comprises a plurality of physiological parameters, a single-lead electrocardiogram, oxyhemoglobin saturation, heart rate, body temperature, blood pressure, body fat and biochemical function parameter indexes, the biochemical function parameter indexes comprise blood sugar, uric acid and total cholesterol, and the portable vital sign monitor comprises a microcontroller, and a biochemical function detection module, a body temperature detection module, an electrocardiogram and heart rate detection module, a blood oxygen detection module, a blood pressure detection module, a body fat detection module and a Bluetooth module which are connected with the microcontroller;
the cloud server is used for receiving and storing human body vital sign data and sending the human body vital sign data to the data processing center in real time;
the data processing center analyzes the human body vital sign data, gives an analysis result and feeds the analysis result back to the mobile terminal for displaying. And simultaneously drawing a result curve chart for users and doctors to log in a website for inquiry and use.
The user performs a medical test through the portable vital sign monitor, sends data to the cloud server storing the data when performing the test, transmits the data to the call center or third parties who wish to receive a notification of the test result, and if necessary, the call center may contact the individual for further instruction.
The portable vital sign monitor provides an end-to-end health solution, and the user measures his/her vital signs through sensors on the portable vital sign monitor. The measured data can be securely transmitted to a cloud server for storage and analysis. A user who subscribes to one of the service options can view the historical data retrieved from the backend (by using a dedicated App on the mobile terminal) and trend his medical measurements at any particular time. In addition, data can be shared with third parties (call centers, doctors, family, etc.) as required by the user. The user may also access his medical data using a web portal or a phone application. The user may view medical data of other users who have obtained their approval, which may be configured in the device settings.
According to the invention, the microcontroller is preferably used for processing data and images;
the biochemical function detection module is used for measuring biochemical function indexes, wherein the biochemical function indexes comprise blood sugar, uric acid and total cholesterol;
the body temperature detection module is used for measuring the skin temperature and sending the skin temperature to the microcontroller;
the electrocardiogram and heart rate detection module is used for acquiring electrocardiogram and heart rate;
the blood oxygen detection module is used for measuring the blood oxygen saturation;
the blood pressure detection module is used for measuring blood pressure;
the body fat detection module is used for detecting the body fat rate and the BMI value.
The Bluetooth module is used for sending the measured human body vital sign data to the mobile terminal.
Preferably, the microcontroller is of the type STM32 ARM;
the model of the blood oxygen detection module is SMD blood oxygen;
the Bluetooth module is in the type of RF-BM-S02A.
The biochemical function index detection module has the model number of
3IN1 Plus, comprising a blood sugar measuring controller, a uric acid measuring controller and a total cholesterol measuring controller, wherein the blood sugar measuring controller, the uric acid measuring controller and the total cholesterol measuring controller are respectively connected with the microcontroller through a three-wire UART interface;
through integration of tom-tom organisms
After the module of the detector for the blood sugar, uric acid and total cholesterol which is approved by the drug administration finishes detection through an electrochemical detection method, a test result is displayed on the mobile terminal and uploaded to the cloud server, and data analysis is finished in the data processing center.
The body temperature detection module is an infrared thermometer (forehead temperature test mode) with the model number of TPS 23B; the body temperature module adopts an infrared temperature measurement technology to measure the body temperature by absorbing the infrared radiation energy emitted by the human body; when the body temperature is detected, the body temperature probe is aligned to the forehead, the distance between the probe and the forehead is not more than 1 cm, and the forehead is not required to be contacted. The body temperature detection result uploads the data through Bluetooth BLE 4.0.
The electrocardio-heart rate module comprises an electrocardio chip (TI ADS1291), a data sampling circuit, a digital signal processing circuit, an analog front end AFE and a storage circuit, wherein the data sampling circuit comprises three copper nickel-plated electrode plates, the electrode-skin contact impedance is high, the overpotential is relatively high, the three electrocardio copper nickel-plated electrode plates can inhibit common-mode voltage caused by exposure of a human body, electrodes and cables, the main challenge of ECG detection of a polarized electrode is solved, and the electrode-skin contact impedance is high, and the overpotential is relatively high.
According to the invention, the ECG heart rate module preferably performs ECG processing through an ECG (electrocardiogram) high-pass low-pass notch algorithm, specifically, the discrete Fourier algorithm is put into embedded software, and the processing process is as follows: firstly, an electrocardiogram is led in to generate a 50Hz interference signal, then the interference signal is superposed through an ECG signal, and finally filtering is carried out, the filtered electrocardiogram is more consistent with the law of heart beating (P wave, QRS wave, T wave and U wave), clearer electrocardiogram can be obtained clinically, filtering parameters are set to be blocked within the range of 49.9-50.1Hz, a notch effect is achieved, detection can be carried out through a Fluke electrocardiogram simulator or a data rising SKX-2000T electrocardiogram simulation detector according to the requirements of YY0885-2013, and verification is carried out by referring to databases established by MIT and Mennen Medical.
According to the invention, the electrocardio-heart rate module circuit is preferably provided with the magnetic beads and the bypass capacitor, the magnetic beads are MPZ1608Y221BTA00 and MPZ1608D101BTA00, and the magnetic beads and the bypass capacitor circuit can effectively inhibit and absorb high-frequency signals (especially aiming at frequency points above 1 GHZ) and improve radiation immunity.
According to the invention, the blood pressure detection module preferably comprises an American ADI blood pressure module, a Servoflo blood pressure detection pressure sensor, an electrode plate and an AFE rectification unit, wherein the pressure sensor and the electrode plate are connected to the blood pressure module through the AFE rectification unit, the blood pressure module is connected to the microcontroller, the blood pressure detection module adopts a technology for monitoring systolic pressure and diastolic pressure of a human body in real time or at short time intervals, a PPG signal is acquired by the pressure sensor on a wrist artery blood vessel, enough delay time is acquired as far as possible, an ECG signal is acquired through the electrode plate when the distance along the artery blood vessel is larger, the ECG signal enters the blood pressure module after passing through the AFE rectification unit, a final blood pressure value is acquired through a PWTT algorithm, and the final blood pressure value is transmitted to the microcontroller through a serial interface.
According to the invention, the body fat detection module comprises a first electrode, a second electrode, a third electrode, a multi-way switch, a differential amplifier, a rectifier, a filter and an A/D converter, wherein the first electrode, the second electrode and the third electrode are respectively connected with the multi-way switch, and the multi-way switch is sequentially connected with the differential amplifier, the rectifier, the filter, the A/D converter and the microcontroller.
Preferably, the mobile terminal is a mobile phone or a PAD.
The using method of the multifunctional physiological and biochemical parameter detection system comprises the steps of electrocardio heart rate detection, blood pressure detection, body fat detection, biochemical function parameter index detection, body temperature detection and blood oxygen detection, and comprises the following specific steps:
(1) detecting the heart rate of a user, namely respectively contacting three copper nickel-plated electrode plates by using three fingers of the user, detecting a circuit diagram by using an electrocardiogram heart rate module, then processing by using an ECG high-pass and low-pass notch algorithm to obtain a final clear electrocardiogram, and transmitting the electrocardiogram to a microcontroller;
(2) the method comprises the steps of blood pressure detection, wherein a PPG signal is obtained by a pressure sensor on a wrist artery blood vessel, an ECG signal is obtained through an electrode plate, the PPG signal and the ECG signal enter a blood pressure module after passing through an AFE rectification unit, a final blood pressure value is obtained through a PWTT algorithm, and the blood pressure value is transmitted to a microcontroller through a serial interface;
(3) the body fat detection is realized by respectively holding the first electrode and the second electrode with two hands of a user, placing the thumb of the right hand on the third electrode on the surface of the system, sending weak current through the electrode plate to be led into a human body, leading the micro-current into the human body from the first electrode, after the conduction in the body, the data is transmitted back to the second electrode, the human body and the system form a closed alternating current circuit, the first electrode provides a constant current I, the voltage drop U at the two ends of the first electrode is measured, the impedance generated by the human body is Z1, the actually measured impedance also comprises the contact impedance Z2 between the electrode and the human body, the measured impedance is subjected to differential amplification of a differential amplifier, rectifier rectification of a collator, filter filtering and A/D converter conversion in sequence and then enters a micro-controller for calculation, and Z is U/I is Z1+ Z2, compensating through a third electrode to eliminate common-mode voltage errors caused by contact impedance in a two-electrode method;
(4) the biochemical function parameter index detection, the body temperature detection and the blood oxygen detection are respectively used for detecting the biochemical function parameter index, the body temperature and the blood oxygen through the biochemical function detection module, the body temperature detection module and the blood oxygen detection module.
The invention has the beneficial effects that:
1. the invention can be used for monitoring the following vital signs and indexes of a human body in a medical institution or in an environment outside the medical institution: the single-lead electrocardiogram, the blood oxygen saturation, the heart rate, the body temperature, the blood pressure, the body fat, the blood sugar, the uric acid and the total cholesterol are suitable for patients needing to monitor the vital signs and indexes due to various acute and chronic diseases and healthy and sub-healthy people who want to better grasp and manage the physical conditions.
2. The blood taking needle and the test paper are required to be used for detecting the blood sugar, the uric acid and the total cholesterol, and no accessories are required for other detections, so that the blood taking needle is convenient for a subject to use.
3. According to the invention, a user can monitor, record and store own vital sign data at any time and any place by using the system only by carrying the system and own mobile phone or PAD, and can transmit and share the data to own doctors, nursing staff and family members.
4. The invention relates to an instrument which is designed according to the standard of medical instruments of a medical supervision bureau and is registered according to the registration management method of the medical instruments, which means that medical staff can use the data measured by a portable vital sign monitor as a diagnosis basis. For example, the application of the invention can greatly shorten the time required by body temperature management, patients can finish measurement by themselves, and data is automatically transmitted to relevant terminals for medical care personnel to analyze. The application can greatly reduce the workload of medical personnel and improve the working efficiency of wards and clinics. In addition, the self-service monitoring and automatic data transmission of indexes such as the blood oxygen saturation, the electrocardiogram and the heart rate are added, and the detection data of the blood sugar, the uric acid and the total cholesterol is immeasurable for the improvement of the medical working efficiency.
Drawings
FIG. 1 is a block diagram of the multi-functional vital signs detection system of the present invention;
FIG. 2 is a block diagram of the portable vital sign monitor of the present invention;
FIG. 3 is a schematic diagram of a blood oxygen detecting module according to the present invention;
FIG. 4 is a block diagram of the body fat testing module of the present invention;
FIG. 5 is a schematic diagram of a magnetic bead circuit according to the present invention;
FIG. 6 is a schematic diagram of a bypass capacitor circuit according to the present invention.
Detailed Description
The present invention will be further described by way of examples, but not limited thereto, with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 4, the present embodiment provides a multifunctional physiological and biochemical parameter detection system, which includes a portable vital sign monitor, a mobile terminal, a cloud server, and a data processing center, which are connected in sequence;
the portable vital sign monitor is used for detecting vital sign data of a human body, the vital sign data of the human body is displayed on the mobile terminal and is sent to the cloud server in real time, the vital sign data of the human body comprises a plurality of physiological parameters, a single-lead electrocardiogram, oxyhemoglobin saturation, heart rate, body temperature, blood pressure, body fat and biochemical function parameter indexes, the biochemical function parameter indexes comprise blood sugar, uric acid and total cholesterol, and the portable vital sign monitor comprises a microcontroller, and a biochemical function detection module, a body temperature detection module, an electrocardiogram and heart rate detection module, a blood oxygen detection module, a blood pressure detection module, a body fat detection module and a Bluetooth module which are connected with the microcontroller;
the cloud server is used for receiving and storing human body vital sign data and sending the human body vital sign data to the data processing center in real time;
the data processing center analyzes the vital sign data of the human body, gives an analysis result and feeds the analysis result back to the mobile terminal for displaying. And simultaneously drawing a result curve chart for users and doctors to log in a website for inquiry and use.
The user performs a medical test through the portable vital sign monitor, sends data to the cloud server storing the data when performing the test, transmits the data to the call center or third parties who wish to receive a notification of the test result, and if necessary, the call center may contact the individual for further instruction.
The portable vital sign monitor provides an end-to-end health solution, and the user measures his/her vital signs through sensors on the portable vital sign monitor. The measured data can be securely transmitted to a cloud server for storage and analysis. A user who subscribes to one of the service options can view the historical data retrieved from the backend (by using a dedicated App on the mobile terminal) and trend his medical measurements at any particular time. In addition, data can be shared with third parties (call centers, doctors, family, etc.) according to the user's requirements. The user may also access his medical data using a web portal or a phone application. The user may view medical data of other users who have obtained their approval, which may be configured in the device settings.
The microcontroller is used for processing data and images;
the biochemical function detection module is used for measuring biochemical function indexes, wherein the biochemical function indexes comprise blood sugar, uric acid and total cholesterol;
the body temperature detection module is used for measuring the skin temperature and sending the skin temperature to the microcontroller;
the electrocardiogram and heart rate detection module is used for acquiring electrocardiogram and heart rate;
the blood oxygen detection module is used for measuring the blood oxygen saturation;
the blood pressure detection module is used for measuring blood pressure;
the body fat detection module is used for detecting the body fat rate and the BMI value.
The Bluetooth module is used for sending the measured human body vital sign data to the mobile terminal.
The model of the microcontroller is STM32 ARM;
the blood oxygen detection module is of the type SMD blood oxygen, and the blood oxygen detection module employs advanced Photoplethysmography (Photoplethysmography), which is an optical technique for continuously monitoring blood volume, and the measured signal is called a spectral motion map (PPG). During the measurement, a Light Emitting Diode (LED) is placed on the skin surface to emit light directly into the skin. The emitted light typically comes from the red and infrared regions (600- & 1300nm), which has little absorption into the tissue, some of which is scattered and absorbed by bone and tissue, and the remainder of which is transmitted to the peripheral arteries. The photodetectors on the same side of the LED detect the reflected light. The light absorption of the blood is regulated according to the change of the peripheral blood volume. When blood passes through the circulation terminal, oxygen content is measured by irradiating light, receiving transmittance with a receiver, and calculating oxygen saturation from the transmittance.
The Bluetooth module is RF-BM-S02A.
Said raw material isThe type of the function index detection module is
3IN1 Plus, including a blood sugar measuring controller, a uric acid measuring controller, a total cholesterol measuring controller, the blood sugar measuring controller, the uric acid measuring controller, the total cholesterol measuring controller are respectively connected with the microcontroller through a three-wire UART interface;
through integration of tom-tom organisms
After the module of the detector for the blood sugar, uric acid and total cholesterol which is approved by the drug administration finishes detection through an electrochemical detection method, a test result is displayed on the mobile terminal and uploaded to the cloud server, and data analysis is finished in the data processing center.
The body temperature detection module is an infrared thermometer (forehead temperature test mode) with the model number of TPS 23B; the body temperature module adopts an infrared temperature measurement technology to measure the body temperature by absorbing the infrared radiation energy emitted by the human body; when the body temperature is detected, the body temperature probe is aligned to the forehead, the distance between the probe and the forehead is not more than 1 cm, and the forehead is not required to be contacted. The body temperature detection result uploads the data through Bluetooth BLE 4.0.
The electrocardio-heart rate module comprises an electrocardio chip (TI ADS1291), a data sampling circuit, a digital signal processing circuit, an analog front end AFE and a storage circuit, wherein the data sampling circuit comprises three copper nickel-plated electrode plates, the electrode-skin contact impedance is high, the overpotential is relatively high, the three electrocardio copper nickel-plated electrode plates can inhibit common-mode voltage caused by exposure of a human body, electrodes and cables, the main challenge of ECG detection of a polarized electrode is solved, and the electrode-skin contact impedance is high, and the overpotential is relatively high.
The electrocardiogram heart rate module carries out electrocardiogram processing through an ECG (electrocardiogram) high-pass low-pass notch algorithm, specifically, the discrete Fourier algorithm is put into embedded software, and the processing process is as follows: firstly, introducing an electrocardiogram to generate a 50Hz interference signal, then superposing the interference signal through an ECG signal, and finally filtering, wherein the filtered electrocardiogram is more consistent with the beat rule of the heart (P wave, QRS wave, T wave and U wave), a clearer electrocardiogram can be obtained clinically, filtering parameters are set to be blocked within the range of 49.9-50.1Hz to play a role of trapping, and the trapping effect can be detected through a Fluke electrocardiogram simulator or a Ming Sheng SKX-2000T electrocardiogram simulation detector according to the requirements of YY0885-2013, and verification is carried out by referring to an MIT and Mennen Medical established database.
According to the invention, the blood pressure detection module preferably comprises an American ADI blood pressure module, a Servoflo blood pressure detection pressure sensor, an electrode plate and an AFE rectification unit, wherein the pressure sensor and the electrode plate are connected to the blood pressure module through the AFE rectification unit, the blood pressure module is connected to the microcontroller, the blood pressure detection module adopts a technology for monitoring systolic pressure and diastolic pressure of a human body in real time or at short time intervals, a PPG signal is acquired by the pressure sensor on a wrist artery blood vessel, enough delay time is acquired as far as possible, an ECG signal is acquired through the electrode plate when the distance along the artery blood vessel is larger, the ECG signal enters the blood pressure module after passing through the AFE rectification unit, a final blood pressure value is acquired through a PWTT algorithm, and the final blood pressure value is transmitted to the microcontroller through a serial interface.
The body fat detection module comprises a first electrode, a second electrode, a third electrode, a multi-way switch, a differential amplifier, a rectifier, a filter and an A/D converter, wherein the first electrode, the second electrode and the third electrode are respectively connected with the multi-way switch, and the multi-way switch is sequentially connected with the differential amplifier, the rectifier, the filter, the A/D converter and a microcontroller.
The mobile terminal is a mobile phone or a PAD.
The using method of the multifunctional physiological and biochemical parameter detection system comprises the steps of electrocardio heart rate detection, blood pressure detection, body fat detection, biochemical function parameter index detection, body temperature detection and blood oxygen detection, and comprises the following steps:
(1) the method comprises the steps of performing electrocardio-heart rate detection, wherein three fingers of a user respectively contact three copper nickel-plated electrode plates, an electrocardio-heart rate module measures a circuit diagram, then an ECG high-pass low-pass notch algorithm is used for processing to obtain a final clear electrocardiogram, and the electrocardiogram is transmitted to a microcontroller;
(2) the method comprises the steps of blood pressure detection, wherein a PPG signal is obtained by a pressure sensor on a wrist artery blood vessel, an ECG signal is obtained through an electrode plate, the PPG signal and the ECG signal enter a blood pressure module after passing through an AFE rectification unit, a final blood pressure value is obtained through a PWTT algorithm, and the blood pressure value is transmitted to a microcontroller through a serial interface;
(3) the body fat detection is that a user respectively holds a first electrode and a second electrode with two hands, the thumb of the right hand is placed on a third electrode on the surface of a system, weak current is sent out through an electrode plate and is led into a human body, micro current enters the human body from the first electrode, after the micro current is conducted in the human body, the data is returned to the second electrode, the human body and the system form a closed alternating current circuit, the first electrode provides constant current I, the voltage drop U at the two ends of the first electrode is measured, the impedance generated by the human body is Z1, the actually measured impedance also comprises contact impedance Z2 between the electrode and the human body, the measured impedance sequentially passes through differential amplification of a differential amplifier, rectification of a collator, filtering of a filter and conversion of an A/D converter and then enters a micro controller for calculation, Z U/I is Z1+ Z2, compensation is carried out through the third electrode, and common mode voltage error caused by the contact impedance in a two-electrode method is eliminated, measuring body fat through impedance is prior art and is not described in detail;
(4) the biochemical function parameter index detection, the body temperature detection and the blood oxygen detection are respectively used for detecting the biochemical function parameter index, the body temperature and the blood oxygen through a biochemical function detection module, a body temperature detection module and a blood oxygen detection module.
A large number of experiments prove that the detection range and the expected accuracy can be realized as shown in table 1:
TABLE 1
From the technical level, the biochemical function detection module that most reliable heart electrograph, rhythm of the heart, blood pressure, body temperature and oxyhemoglobin saturation monitoring technology and medicine were approved has been integrated to this embodiment.
In addition, in order to obtain the batch documents of the future innovative medical instruments, the applicant hires professionals to carry out deep clinical evaluation on the invention. During the evaluation, the present invention was compared with the existing 6 monitoring devices on the market that are comparable (i.e. clinically, technically and biologically comparable): the comparative results are shown in table 2:
table 2: comparison of the multifunctional vital sign board with similar products in the market
As can be seen from table 2, only in the embodiment, one device can monitor multiple indexes, and the wearable device of the medical mobile phone invented by the chinese enterprise is still different in accuracy, for example, the medical mobile phone for red birds does not pass the drug monitoring detection.
During the evaluation, clinical data from manufacturers of these devices and clinical data from relevant literature were collected. Evaluation finds that the monitoring recorder is safe, accurate and effective, can be used at home, and enables people in remote areas to be better monitored.
Example 2
The multifunctional vital sign detection system according to embodiment 1 is different in that a magnetic bead and a bypass capacitor are arranged in the electrocardiograph/heart rate module circuit, the magnetic bead and bypass capacitor circuit are shown in fig. 5-6, the magnetic bead is MPZ1608Y221BTA00 and MPZ1608D101BTA00, and the magnetic bead and bypass capacitor circuit can effectively suppress and absorb high-frequency signals (especially for frequency points above 1 GHZ), thereby improving radiation immunity.
Claims (10)
1. A multifunctional physiological and biochemical parameter detection system is characterized by comprising a portable vital sign monitor, a mobile terminal, a cloud server and a data processing center which are sequentially connected;
the portable vital sign monitor is used for detecting vital sign data of a human body, the vital sign data of the human body is displayed on the mobile terminal and is sent to the cloud server in real time, and the portable vital sign monitor comprises a microcontroller, and a biochemical function detection module, a body temperature detection module, an electrocardio-heart rate detection module, a blood oxygen detection module, a blood pressure detection module, a body fat detection module and a Bluetooth module which are connected with the microcontroller;
the cloud server is used for receiving and storing human body vital sign data and sending the human body vital sign data to the data processing center in real time;
the data processing center analyzes the vital sign data of the human body, gives an analysis result and feeds the analysis result back to the mobile terminal for displaying.
2. The multifunctional physiological and biochemical parameter detecting system according to claim 1, wherein the microcontroller is used for data and image processing;
the biochemical function detection module is used for measuring biochemical function indexes, wherein the biochemical function indexes comprise blood sugar, uric acid and total cholesterol;
the body temperature detection module is used for measuring the skin temperature and sending the skin temperature to the microcontroller;
the electrocardiogram heart rate detection module is used for acquiring electrocardiogram and heart rate;
the blood oxygen detection module is used for measuring the blood oxygen saturation;
the blood pressure detection module is used for measuring blood pressure;
the body fat detection module is used for detecting the body fat rate and the BMI value;
the Bluetooth module is used for sending the measured human body vital sign data to the mobile terminal.
3. The multifunctional physiological and biochemical parameter sensing system of claim 1, wherein the microcontroller is of the model number STM32 ARM;
the model of the blood oxygen detection module is SMD blood oxygen;
the Bluetooth module is in a type of RF-BM-S02A;
the biochemical function index detection module has the model number of
3IN1 Plus, including a blood sugar measuring controller, a uric acid measuring controller, a total cholesterol measuring controller, the blood sugar measuring controller, the uric acid measuring controller, the total cholesterol measuring controller are respectively connected with the microcontroller through a three-wire UART interface;
the body temperature detection module is an infrared thermometer with the model number of TPS 23B;
the electrocardio-heart rate module comprises an electrocardio chip, a data sampling circuit, a digital signal processing circuit, an analog front end AFE and a storage circuit, wherein the data sampling circuit comprises three copper nickel-plated electrode plates, and other components of the electrocardio-heart rate module are the same as those of the electrocardio chip described in the Chinese patent CN 108364690A.
4. The system of claim 3, wherein the ECG heart rate module performs ECG processing by an ECG high-pass low-pass notch algorithm.
5. The system of claim 4, wherein the electrical heart rate module circuit comprises a magnetic bead and a bypass capacitor, the magnetic bead is selected from MPZ1608Y221BTA00 and MPZ1608D101BTA 00.
6. The multifunctional physiological and biochemical parameter detecting system according to claim 5, wherein the blood pressure detecting module includes a blood pressure module, a pressure sensor, an electrode pad, and an AFE rectifying unit, the pressure sensor and the electrode pad are connected to the blood pressure module through the AFE rectifying unit, and the blood pressure module is connected to the microcontroller.
7. The system of claim 6, wherein the body fat detection module comprises a first electrode, a second electrode, a third electrode, a multi-way switch, a differential amplifier, a rectifier, a filter and an A/D converter, the first electrode, the second electrode and the third electrode are respectively connected to the multi-way switch, and the multi-way switch is sequentially connected to the differential amplifier, the rectifier, the filter, the A/D converter and the microcontroller.
8. The multifunctional physiological and biochemical parameter detecting system according to claim 1, wherein the mobile terminal is a mobile phone or a PAD.
9. The use method of the multifunctional physiological and biochemical parameter detection system according to claim 7, comprising the steps of electrocardiographic heart rate detection, blood pressure detection, body fat detection, biochemical function parameter index detection, body temperature detection and blood oxygen detection, and specifically comprising the following steps:
(1) the method comprises the steps of performing electrocardio-heart rate detection, wherein three fingers of a user respectively contact three copper nickel-plated electrode plates, an electrocardio-heart rate module measures a circuit diagram, then an ECG high-pass low-pass notch algorithm is used for processing to obtain a final clear electrocardiogram, and the electrocardiogram is transmitted to a microcontroller;
(2) blood pressure detection, wherein a PPG signal is acquired by a pressure sensor on a wrist artery blood vessel, an ECG signal is acquired through an electrode plate, the PPG signal and the ECG signal enter a blood pressure module after passing through an AFE (auto-feedback) rectification unit, a final blood pressure value is acquired through a PWTT (pulse width transmit test) algorithm, and the blood pressure value is transmitted to a microcontroller through a serial interface;
(3) the body fat detection method comprises the steps that a user respectively holds a first electrode and a second electrode with two hands, the thumb of the right hand is placed on a third electrode on the surface of a system, weak current is sent out through an electrode plate and is led into a human body, micro-current enters the human body from one hand, after the micro-current is conducted in the human body, data are transmitted back to the electrode plate under the other hand, the human body and the system form a closed alternating current circuit, one electrode where the left hand and the right hand are located provides a constant current I, the voltage drop U at two ends of the electrode is measured, the impedance generated by the human body is Z1, the actually measured impedance also comprises the contact impedance Z2 between the electrode and the human body, the measured impedance sequentially passes through a differential amplifier for differential amplification, a collator for rectification, a filter for filtering, an A/D converter for conversion, and then enters a micro-controller for calculation, and Z is U/I is Z1+ Z2;
(4) the biochemical function parameter index detection, the body temperature detection and the blood oxygen detection are respectively used for detecting the biochemical function parameter index, the body temperature and the blood oxygen through the biochemical function detection module, the body temperature detection module and the blood oxygen detection module.
10. The method for using the multifunctional physiological and biochemical parameter detecting system according to claim 9, wherein in the step (1), the ECG high-pass low-pass notch algorithm processing procedure is as follows: firstly, an electrocardiogram is led in to generate a 50Hz interference signal, then the interference signal is superposed through the ECG signal, and finally filtering is carried out, wherein the filtering parameter is set to be blocked within the range of 49.9-50.1 Hz.
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