A multi-sensor pulse wave positioning device and analysis system

Abstract

The present invention discloses a multi-sensor pulse wave positioning device and analysis system, which belongs to the field of pulse wave monitoring technology, and can solve the problem in the prior art that radial artery positioning is seriously interfered by noise, and multi-sensor information is not efficiently utilized, which limits the system analysis performance. The device includes: a housing; a sensor module, including multiple infrared sensors and multiple red light sensors, multiple infrared sensors and multiple red light sensors are arranged at intervals and are all embedded in the housing; the infrared sensor is used to monitor the pulse wave infrared signal on the radial artery, and the red light sensor is used to monitor the pulse wave red light signal; a determination module, which is electrically connected to the multiple infrared sensors and the multiple red light sensors, and is used to determine the pure pulse wave signal corresponding to each pulse wave infrared signal according to the multiple pulse wave infrared signals and the multiple pulse wave red light signals, and determine the pulse wave collection position according to the multiple pure pulse wave signals. The present invention is used for the collection and analysis of pulse waves.

Description

Technical Field

[0001] The invention relates to a multi-sensor pulse wave positioning device and an analysis system, belonging to the technical field of pulse wave monitoring. Background Art

[0002] In recent years, some electronic pulse diagnosis devices have begun to appear on the market. These electronic pulse diagnosis devices usually use sensor technology and perform analysis and diagnosis through digital processing. For example, the pulse wave acquisition and analysis system that integrates pressure sensors and photoelectric sensors in the prior art has solved the problem that pressure sensors cannot take into account both perception accuracy and positioning accuracy and provides ideas for the design of fusion sensor probes. However, the photoelectric sensor array used for radial artery positioning still has the following shortcomings.

[0003] (1) Radial artery positioning is seriously affected by noise interference. Although photoelectric sensors are widely used in wearable devices due to their superior compatibility with the use environment and high signal quality, considering that the radial artery is located at a relatively deep position, a light source of a special band is required to ensure that the collected signal contains the radial artery pulse wave component. However, the existing positioning scheme cannot avoid the influence of other blood vessels (such as capillaries) on the pulse wave in the same vertical plane. At the same time, because the pulse waves in the capillaries and radial arteries are not exactly the same, when using a photoelectric sensor array to locate the radial artery, the signal collected by each photoelectric sensor is a signal formed by the coupling of the pulse signals of multiple blood vessels, which will interfere with the positioning accuracy.

[0004] (2) Multi-sensor information is not used efficiently. Pulse wave information collected by different sensors is currently used for pathological analysis. The pulse wave signals collected by these different sensors usually represent different physical meanings and can be used to analyze disease information from multiple perspectives. However, the existing technology only considers the simple fusion of this information or the simple screening and direct analysis using machine learning or deep learning algorithms, without considering the information complementarity of signals collected by different sensors, thus limiting the analysis performance of the system. Summary of the invention

[0005] The present invention provides a multi-sensor pulse wave positioning device and analysis system, which can solve the problem in the prior art that radial artery positioning is seriously interfered by noise and multi-sensor information is not efficiently utilized, thereby limiting the analysis performance of the system.

[0006] In one aspect, the present invention provides a multi-sensor pulse wave positioning device, the device comprising:

[0007] A housing;

[0008] The sensor module comprises a plurality of infrared sensors and a plurality of red light sensors, which are arranged at intervals and embedded in the housing; the infrared sensor is used to monitor the infrared signal of the pulse wave on the radial artery, and the red light sensor is used to monitor the red light signal of the pulse wave;

[0009] The determination module is electrically connected to the multiple infrared sensors and the multiple red light sensors, and is used to determine the pure pulse wave signal corresponding to each pulse wave infrared signal according to the multiple pulse wave infrared signals and the multiple pulse wave red light signals, and determine the pulse wave collection position according to the multiple pure pulse wave signals.

[0010] Optionally, the determining module includes:

[0011] A common mode calculation unit, used for calculating a common mode signal of a plurality of pulse wave red light signals;

[0012] A differential mode calculation unit, used for calculating a differential mode signal between each pulse wave infrared signal and the common mode signal, and using the differential mode signal as a pure pulse wave signal corresponding to the pulse wave infrared signal;

[0013] The positioning unit is used to use the collection position of the infrared sensor corresponding to the pure pulse wave signal that meets the preset conditions as the pulse wave collection position.

[0014] Optionally, the determining module further includes:

[0015] The normalization unit is used to perform amplitude normalization processing on the differential mode signal, and use the processed differential mode signal as the pure pulse wave signal corresponding to the pulse wave infrared signal.

[0016] Optionally, the wavelength of the light source of the transmitter in the infrared sensor is 900nm~1000nm; the receiving band of the receiver is 850nm~1100nm;

[0017] The wavelength of the light source of the transmitter in the red light sensor is 550nm~700nm; the receiving band of the receiver is 550nm~700nm.

[0018] Optionally, a plurality of infrared sensors and a plurality of red light sensors are arranged in a row, and a first light baffle is provided between adjacent infrared sensors and red light sensors; a second light baffle is provided between a transmitter and a receiver in each infrared sensor and red light sensor.

[0019] Optionally, the coverage length of the multiple infrared sensors is 10 mm to 15 mm; the coverage length of the multiple red light sensors is 8 mm to 12 mm.

[0020] In another aspect, the present invention provides a multi-sensor pulse wave analysis system, the system comprising:

[0021] A positioning device, used to determine the pulse wave collection position; the positioning device is any of the multi-sensor pulse wave positioning devices described above;

[0022] An acquisition module, used for acquiring the pulse wave signal at the pulse wave acquisition position;

[0023] The analysis module is electrically connected to the acquisition module and is used to determine the diagnosis result according to the pulse wave signal.

[0024] Optionally, the acquisition module includes:

[0025] A pressure sensor, used for collecting the pulse wave pressure signal at the pulse wave collection position;

[0026] A photoelectric sensor, used for collecting a pulse wave photoelectric signal at the pulse wave collection position;

[0027] The analysis module is used to determine a diagnosis result according to the pulse wave pressure signal and the pulse wave photoelectric signal.

[0028] Optionally, the analysis module specifically includes:

[0029] A fusion unit, used to determine a pulse wave fusion feature using a multi-view algorithm according to the pulse wave pressure signal and the pulse wave photoelectric signal;

[0030] An analysis unit is used to determine a diagnosis result according to the pulse wave fusion feature.

[0031] Optionally, the photoelectric sensor is an infrared sensor at the pulse wave collection position; and the pressure sensor is connected to the accommodating shell via an elastic beam.

[0032] The beneficial effects that the present invention can produce include:

[0033] The multi-sensor pulse wave positioning device and analysis system provided by the present invention, by setting a plurality of red light sensors arranged at intervals with a plurality of infrared sensors, uses a plurality of pulse wave red light signals collected by the plurality of red light sensors to remove noise signals in the pulse wave infrared signals collected by the infrared sensors, obtains a plurality of pure pulse wave signals, and then determines the pulse wave collection position according to the plurality of pure pulse wave signals, thereby realizing the positioning of the radial artery.

[0034] The multi-sensor pulse wave positioning device and analysis system provided by the present invention can improve the accuracy of automatic positioning of the radial artery and the anti-interference ability, thereby obtaining a purer photoelectric radial artery pulse wave signal, which can be widely used in a variety of analysis systems. At the same time, the multi-view analysis method designed by the present invention can efficiently utilize pulse wave information, thereby improving the accuracy of disease diagnosis based on pulse wave signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A flowchart of the multi-sensor pulse wave analysis system provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of an arrangement of photoelectric tubes provided in an embodiment of the present invention;

[0037] Figure 3 A flowchart of a multi-view algorithm processing process provided by an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of the structure of a positioning device and a collection module provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of a positioning device provided in an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of the structure of a photoelectric array circuit board provided in an embodiment of the present invention.

[0041] Reference numerals:

[0042] 11. accommodating shell; 12. photoelectric array circuit board; 13. elastic beam; 14. pressure sensor; 15. sensor groove; 16. first light baffle; 17. second light baffle; 18. bracket; 19. red light source; 20. infrared light source; 21. receiver. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0044] The embodiment of the present invention provides a multi-sensor pulse wave positioning device, such as Figures 1 to 6 As shown, the device comprises:

[0045] The housing 11 is accommodated.

[0046] The sensor module includes multiple infrared sensors and multiple red light sensors, which are arranged at intervals and embedded in the accommodating shell 11; the infrared sensor is used to monitor the infrared signal of the pulse wave on the radial artery, and the red light sensor is used to monitor the red light signal of the pulse wave.

[0047] The embodiment of the present invention does not limit the specific number of infrared sensors and red light sensors, and those skilled in the art can set it according to actual conditions. In practical applications, for example, 5 infrared sensors and 4 red light sensors can be set, and the two can be distributed at intervals.

[0048] The determination module is electrically connected to the multiple infrared sensors and the multiple red light sensors, and is used to determine the pure pulse wave signal corresponding to each pulse wave infrared signal according to the multiple pulse wave infrared signals and the multiple pulse wave red light signals, and determine the pulse wave collection position according to the multiple pure pulse wave signals.

[0049] Furthermore, the determination module includes:

[0050] A common mode calculation unit, used for calculating a common mode signal of a plurality of pulse wave red light signals;

[0051] A differential mode calculation unit is used to calculate the differential mode signal between each pulse wave infrared signal and the common mode signal, and use the differential mode signal as a pure pulse wave signal corresponding to the pulse wave infrared signal;

[0052] The positioning unit is used to use the collection position of the infrared sensor corresponding to the pure pulse wave signal that meets the preset conditions as the pulse wave collection position.

[0053] In practical applications, the preset condition can be selected to select the signal with the strongest signal strength. Specifically, the pure pulse wave signal with the strongest signal strength is selected from multiple pure pulse wave signals, and the collection position of the infrared sensor corresponding to the pure pulse wave signal with the strongest signal strength is used as the pulse wave collection position.

[0054] Preferably, the determination module further includes:

[0055] The normalization unit is used to perform amplitude normalization processing on the differential mode signal, and use the processed differential mode signal as the pure pulse wave signal corresponding to the pulse wave infrared signal.

[0056] like Figure 1 As shown, radial artery positioning is first performed. The workflow is to first use a photoelectric array sensor to collect photoelectric array signals, that is, to use 9 photoelectric sensors to capture 9 photoelectric signals. These include 5 pulse wave infrared signals collected by 5 infrared sensors and 4 pulse wave red light signals collected by 4 red light sensors. Signal processing is performed on these nine signals separately (i.e., independent sensor signal processing) to form a standard coupled pulse wave. Then, the common mode signal is calculated for the 4 pulse wave red light signals to obtain the noise signal contained in the infrared sensor. Then, by calculating the common mode signal and the differential mode signal of each pulse wave infrared signal, the radial artery pulse wave signal component (i.e., pure pulse wave signal) in the pulse wave infrared signal collected by the five infrared sensors is determined. The extracted five decoupled signals (i.e., pure pulse wave signals) can realize the positioning of the radial artery according to their signal strength. So far, the optimal pulse wave collection position has been determined.

[0057] By using infrared sensors and red light sensors for signal acquisition, the signal can be captured and They correspond to the signals captured by the infrared sensor and the red light sensor respectively. It contains the pulse wave signal coupled from radial artery and other irrelevant blood vessels. The radial artery pulse wave signal contains other irrelevant blood vessel coupled pulse wave signals. Therefore, in order to capture the pure radial artery pulse wave signal, it is necessary to extract and In order to extract a more accurate differential signal and avoid the interference of signal amplitude caused by light brightness difference and absorption rate, the signal extraction formula can be written as:

[0058] (1)

[0059] in It is a pure pulse wave signal. is the pulse wave infrared signal, It is the common mode signal of multiple pulse wave red light signals.

[0060] In an embodiment of the present invention, the wavelength of the light source of the transmitter in the infrared sensor can be set to 900nm~1000nm; the receiving band of its receiver 21 can be set to 850nm~1100nm; the wavelength of the light source of the transmitter in the red light sensor can be set to 550nm~700nm; the receiving band of its receiver 21 can be set to 550nm~700nm.

[0061] Specifically, considering that the sensor array is applied to the radial artery at the wrist, it is necessary to ensure that the wavelength band of the light source used can penetrate the skin and reflect after passing through the radial artery. Therefore, combined with the prior knowledge of human anatomy, that is, the radial artery of the human body is located between 1.5mm and 3mm below the skin of the wrist, it is necessary to ensure that the penetration depth of the light source used is greater than 3mm.

[0062] Therefore, Monte Carlo analysis is combined with the light path simulation based on the three-layer distribution model of wrist skin (epithelium, dermis and subcutaneous tissue layer). Under the condition that the light source meets the radial artery irradiation condition, its light path contains 6 refractions and 6 reflections. In each refraction process, the scattering angle calculation method is:

[0063] (2)

[0064] in, is the anisotropy factor, reflecting the directionality of scattering. When , it indicates isotropic scattering. represents full forward scattering, Represents complete backscattering. The cosine angle of scattering can be calculated from the above formula:

[0065] (3)

[0066] when hour ,in is a random number in the interval [0,1], used to simulate the scattering angle of photons. The azimuth angle is The new propagation direction is:

[0067] (4)

[0068] in, is the incident direction of the photon; is the photon emission direction.

[0069] The calculation formula of the absorption rate during photon propagation is:

[0070] (5)

[0071] in, is the imaginary part of the refractive index of water, is the volume fraction of water in the tissue, is the wavelength of the incident light. The refractive index in skin tissue is calculated as:

[0072] (6)

[0073] in, , , , , , is a constant, is the wavelength.

[0074] After calculation, the reasonable wavelength of the light source of the infrared sensor used to obtain the pulse wave infrared signal is about 900nm~1000nm. Combined with the existing infrared LED technology, a light source with a wavelength of 940nm is selected as the infrared light source 20, and a phototransistor with a receiving band of 850nm~1100nm is selected as the receiver 21 to process the light intensity information containing the radial artery and unrelated blood vessels.

[0075] At the same time, in order to minimize the interference of irrelevant blood vessels on the radial artery pulse wave signal, an auxiliary light source is used to collect irrelevant blood vessel pulse information for pulse wave infrared signal denoising. Also considering the human vascular structure, the irradiation depth of the light source used by the red light sensor for obtaining the pulse wave red light signal should not exceed 1.5mm. According to the Monte Carlo simulation, the wavelength of the selected red light source 19 is about 550nm~700nm. Combined with the existing LED technology, in order to avoid optical path interference as much as possible, the selected LED light source has a peak wavelength of 630nm and a radiation band of 500nm-700nm. The selected receiver 21 is a special phototransistor with a corresponding receiving range of 550nm~700nm.

[0076] In the embodiment of the present invention, a plurality of infrared sensors and a plurality of red light sensors are distributed in a row.

[0077] The embodiments of the present invention do not limit the coverage lengths of the multiple infrared sensors and the multiple red light sensors. For example, the coverage length of the multiple infrared sensors may be 10 mm to 15 mm; the coverage length of the multiple red light sensors may be 8 mm to 12 mm.

[0078] refer to Figure 2 As shown, the emitter and receiver 21 of the infrared sensor form an infrared pair tube, also known as a photoelectric pair tube A, and the emitter and receiver 21 of the red light sensor form a red light pair tube, also known as a photoelectric pair tube B. Photoelectric pair tube A uses a 940nm infrared light source 20 and an 850nm~1100nm phototransistor. Photoelectric pair tube B uses a 630nm red light source 19 and a 500nm~700nm phototransistor. The arrangement of the photoelectric pairs involved is ABABABA staggered arrangement, including 5 pairs of infrared pairs tubes and 4 pairs of red light pairs tubes.

[0079] Five pairs of infrared tubes are used, covering a length of 13mm, which can locate the radial artery within a range of 13mm. Four pairs of red light tubes are used to capture the pulse wave signal in the capillaries above the radial artery. Considering that the capillaries of the human body are densely arranged and distributed nearly evenly within a range of 10mm, even if the positions of the red light tubes and the infrared tubes do not overlap, the information captured by the red light tubes can be equivalent to the pulse information generated by the capillaries under the infrared tubes.

[0080] refer to Figures 4 to 6As shown, a plurality of infrared sensors and a plurality of red light sensors are embedded in a row in the housing 11. Specifically, a plurality of sensor grooves 15 can be provided on the housing 11, and then a plurality of infrared sensors and a plurality of red light sensors are arranged in a row on a circuit board to form a photoelectric array circuit board 12, and then a plurality of infrared sensors and a plurality of red light sensors on the photoelectric array circuit board 12 are embedded in corresponding sensor grooves 15 on the housing 11. The first light baffle 16 between adjacent infrared sensors and red light sensors, and the second light baffle 17 between the transmitter and the receiver 21 in each infrared sensor and red light sensor are both groove walls of the sensor groove 15.

[0081] In the embodiment of the present invention, the housing 11 of the photoelectric sensor array is designed in a grid shape to isolate the LED light sources and photoelectric tubes of adjacent photoelectric sensors and minimize mutual interference between adjacent photoelectric tubes from a mechanical perspective.

[0082] Another embodiment of the present invention provides a multi-sensor pulse wave analysis system, the system comprising:

[0083] A positioning device, used to determine the pulse wave collection position; the positioning device is any of the multi-sensor pulse wave positioning devices described above;

[0084] An acquisition module, used for acquiring a pulse wave signal at a pulse wave acquisition position;

[0085] The analysis module is electrically connected to the acquisition module and is used to determine the diagnosis result according to the pulse wave signal.

[0086] The acquisition module includes:

[0087] A pressure sensor 14, used for collecting a pulse wave pressure signal at a pulse wave collection position;

[0088] A photoelectric sensor, used for collecting a pulse wave photoelectric signal at a pulse wave collection position;

[0089] The analysis module is used to determine the diagnosis result according to the pulse wave pressure signal and the pulse wave photoelectric signal.

[0090] Furthermore, the analysis module specifically includes:

[0091] A fusion unit, used for determining a pulse wave fusion feature by using a multi-view algorithm according to the pulse wave pressure signal and the pulse wave photoelectric signal;

[0092] The analysis unit is used to determine the diagnosis result according to the pulse wave fusion characteristics.

[0093] After the radial artery is successfully located, the pulse wave pressure signal and the pulse wave photoelectric signal are collected. The collected pulse wave pressure signal and pulse wave photoelectric signal are then analyzed using a multi-view algorithm.

[0094] Both the pressure sensor 14 and the photoelectric sensor can reproduce the pulse wave signal, but the reproduction methods of the two are different. Therefore, in the process of pulse wave reproduction, due to the different original physical signals collected, the physical meanings contained in the two signals are different. Therefore, the restored pulse wave signals of the two have information complementarity. Therefore, considering the special signal properties, a multi-view algorithm is used to analyze the collected multi-view data.

[0095] Specific analysis methods include Figure 3 As shown in the figure, the DCCA (Deep Canonical Correlation Analysis) framework is used to combine two different signals (i.e., the photoelectric pulse wave signal and pressure pulse wave signal ) After the signal alignment, the two views are used as input to train the neural network and obtain the corresponding final expression, that is, the highest level representation and Then calculate the correlation coefficient of the two expressions , and the correlation coefficient Incorporate it into Loss for gradient calculation. If Loss meets the requirements, re-output the new and , and on this basis, a new feature representation method is formed , that is, the pulse wave fusion feature. This feature can be used for disease diagnosis or other analysis scenarios.

[0096] Preferably, the photoelectric sensor is an infrared sensor at the pulse wave collection position; the pressure sensor 14 is connected to the accommodating housing 11 through an elastic beam 13 .

[0097] In an embodiment of the present invention, after locating the optimal pulse wave collection position on the radial artery, another photoelectric sensor can be set at the pulse wave collection position to collect the pulse wave photoelectric signal, and then the pressure sensor 14 can be set at the pulse wave collection position to collect the pulse wave pressure signal.

[0098] In another embodiment, the infrared sensor at the pulse wave collection position in the sensor module of the positioning device can also be used to collect the pulse wave photoelectric signal. Specifically, after the best pulse wave collection position on the radial artery is located, the pulse wave photoelectric signal is collected using the infrared sensor at the pulse wave collection position. Furthermore, a bracket 18 can be connected to the accommodating shell 11, an elastic beam 13 can be connected to the bracket 18, and a pressure sensor 14 can be set at the end of the elastic beam 13 away from the bracket 18, so that when the infrared sensor moves to the pulse wave collection position to collect the pulse wave photoelectric signal, the pressure sensor 14 also collects the pulse wave pressure signal.

[0099] The present invention provides a plurality of red light sensors arranged at intervals with a plurality of infrared sensors, utilizes a plurality of pulse wave red light signals collected by the plurality of red light sensors to remove noise signals in the pulse wave infrared signals collected by the infrared sensors, obtains a plurality of pure pulse wave signals, and then determines the pulse wave collection position according to the plurality of pure pulse wave signals, thereby realizing the positioning of the radial artery.

[0100] The present invention can improve the accuracy of automatic radial artery positioning and anti-interference ability, thereby obtaining a purer photoelectric radial artery pulse wave signal, which can be widely used in a variety of analysis systems. At the same time, the multi-view analysis method designed by the present invention can efficiently utilize pulse wave information, thereby improving the accuracy of disease diagnosis based on pulse wave signals.

[0101] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A multi-sensor pulse wave positioning device, characterized in that: The device comprises: A housing; The sensor module comprises a plurality of infrared sensors and a plurality of red light sensors, which are arranged at intervals and embedded in the housing; the infrared sensor is used to monitor the infrared signal of the pulse wave on the radial artery, and the red light sensor is used to monitor the red light signal of the pulse wave; a determination module, electrically connected to the plurality of infrared sensors and the plurality of red light sensors, for determining a pure pulse wave signal corresponding to each pulse wave infrared signal according to the plurality of pulse wave infrared signals and the plurality of pulse wave red light signals, and determining a pulse wave collection position according to the plurality of pure pulse wave signals; The determination module comprises: A common mode calculation unit, used for calculating a common mode signal of a plurality of pulse wave red light signals; The differential mode calculation unit is used to calculate the differential mode signal between each pulse wave infrared signal and the common mode signal, and use the differential mode signal as the pure pulse wave signal corresponding to the pulse wave infrared signal; the calculation formula of the pure pulse wave signal is: ； in, It is a pure pulse wave signal. is the pulse wave infrared signal, It is a common mode signal of multiple pulse wave red light signals; The positioning unit is used to select the pure pulse wave signal with the strongest signal strength from multiple pure pulse wave signals, and use the collection position of the infrared sensor corresponding to the pure pulse wave signal with the strongest signal strength as the pulse wave collection position.

2. The device according to claim 1, characterized in that The determination module also includes: The normalization unit is used to perform amplitude normalization processing on the differential mode signal, and use the processed differential mode signal as the pure pulse wave signal corresponding to the pulse wave infrared signal.

3. The device according to claim 1, characterized in that The wavelength of the light source of the transmitter in the infrared sensor is 900nm~1000nm; the receiving band of the receiver is 850nm~1100nm; The wavelength of the light source of the transmitter in the red light sensor is 550nm~700nm; the receiving band of the receiver is 550nm~700nm.

4. The device according to claim 1, characterized in that A plurality of infrared sensors and a plurality of red light sensors are arranged in a row, a first light shielding plate is arranged between adjacent infrared sensors and red light sensors; a second light shielding plate is arranged between a transmitter and a receiver in each infrared sensor and red light sensor.

5. The device according to claim 4, characterized in that The coverage length of multiple infrared sensors is 10mm~15mm; the coverage length of multiple red light sensors is 8mm~12mm.

6. A multi-sensor pulse wave analysis system, characterized in that: The system comprises: A positioning device for determining a pulse wave collection position; the positioning device is a multi-sensor pulse wave positioning device as described in any one of claims 1 to 5; An acquisition module, used for acquiring the pulse wave signal at the pulse wave acquisition position; The analysis module is electrically connected to the acquisition module and is used to determine the diagnosis result according to the pulse wave signal.

7. The system according to claim 6, characterized in that The acquisition module comprises: A pressure sensor, used for collecting the pulse wave pressure signal at the pulse wave collection position; A photoelectric sensor, used for collecting a pulse wave photoelectric signal at the pulse wave collection position; The analysis module is used to determine a diagnosis result according to the pulse wave pressure signal and the pulse wave photoelectric signal.

8. The system according to claim 7, characterized in that The analysis module specifically includes: A fusion unit, used to determine a pulse wave fusion feature using a multi-view algorithm according to the pulse wave pressure signal and the pulse wave photoelectric signal; An analysis unit is used to determine a diagnosis result according to the pulse wave fusion feature.

9. The system according to claim 7, characterized in that The photoelectric sensor is an infrared sensor at the pulse wave collection position; the pressure sensor is connected to the accommodating shell through an elastic beam.

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