Traditional Chinese Medicine Pulse Diagnosis Finger Force Detection System, Method and Storage Medium

Abstract

This application relates to the technical field of pulse diagnosis detection, and particularly to a traditional Chinese medicine pulse diagnosis finger force detection system, method and storage medium. The system includes: a sensing component, a data acquisition component and a controller; the sensing component can be attached to the nail, detects the change in fingertip blood volume under the state of fingertip extrusion through the change in photoelectric signals, and generates a current signal corresponding to the photoelectric signal; the data acquisition component and the controller can be worn on the back of the hand, and the data acquisition component is used to collect the current signal generated by the sensing component and establish communication between the sensing component and the controller; the controller is used to control the operating state of the sensing component and process the current signal read by the data acquisition component, and calculates the fingertip pressure corresponding to the current signal according to the relationship curve between the pre-calibrated current and the fingertip pressure. Thus, it solves the problems that in the related art, the credibility of measuring the fingertip force in normal pulse diagnosis by the contact method is not high, and the differentiation of floating, middle and sinking finger forces is inaccurate.

Description

Technical Field

[0001] This application relates to the technical field of pulse diagnosis detection, and particularly relates to a traditional Chinese medicine pulse diagnosis finger force detection system, method and storage medium. Background Art

[0002] With the improvement of sensing technology, the four diagnostic methods of traditional Chinese medicine are continuously developing towards digitization and convenience. Among them, the digitization of inspection, auscultation and olfaction, and inquiry has been extensively studied and realized. Only pulse diagnosis, that is, feeling the pulse, is still in the stage of continuous exploration, research and innovation in terms of digitization. Traditional Chinese medicine pulse diagnosis is that a doctor applies different levels of pressing force, namely floating, middle and sinking, on the cun, guan and chi positions of the patient's wrist with the fingers, and at the same time senses the patient's pulse signal to distinguish the patient's pulse condition, and then combines the diagnoses of inspection, auscultation and olfaction, and inquiry to determine the patient's physical health status and disease information. However, in the process of pulse diagnosis, the magnitudes of the floating, middle and sinking finger forces applied by the fingers are based on the experience summarized by traditional Chinese medicine doctors through long-term training, and have not been digitized, which poses a huge obstacle to the research of the principle of pulse diagnosis using modern technology. Therefore, it is urgent to measure the change of the fingertip force of traditional Chinese medicine during normal pulse diagnosis without affecting the doctor's perception of the pulse information, calibrate the pressure ranges of floating, middle and sinking, and digitize them.

[0003] Currently, for the research on the pressure of floating, middle and sinking, the method similar to the pressurized oscillometric method in blood pressure measurement is mostly adopted, that is, gradually increasing the pressure step by step from a lower pressure value until it is higher than the systolic pressure, or artificially selecting three pressure values as the floating, middle and sinking pressures, believing that a lighter force is floating taking, a heavier force is sinking taking, and a moderate force is middle taking. However, this explanation is too general, cannot reflect the actual functions of these three techniques, and lacks research on the actual fingertip forces of floating, middle and sinking in traditional Chinese medicine pulse diagnosis.

[0004] Most of the existing methods for measuring the fingertip pressing force adopt direct contact measurement, that is, placing a force sensor between the fingertip and the object being pressed. For example, a related technology designs a finger-pressure three-part pulse acquisition method for objective acquisition of three-part pulses, and conducts research on the key technologies of three-part pulse acquisition such as pulse-taking pressure calibration, floating-middle-sinking calibration, and pulse-taking stability observation. The method for measuring the floating, middle and sinking finger forces in this work is to place a piezoresistive sensor between the doctor's finger and the patient's pulse, and record the change of the finger force of the doctor during pulse diagnosis through multiple measurements, so as to determine the magnitudes of the floating, middle and sinking pressures. Another related technology uses a pulse diagnosis instrument with multiple finger sleeve sensors to collect the floating-middle-sinking voltage output signals of the cun, guan and chi positions of the fingers of the person being collected; and by sequentially measuring the index finger, middle finger and ring finger, the floating, middle and sinking pulse-taking pressures of each finger are detected and recorded.

[0005] However, these measurement methods that place the sensor between the doctor's fingertip and the patient's pulse will affect the tactile sensation of the fingertip, thus affecting the doctor's diagnosis of the patient's pulse condition during this process, resulting in a significant difference between the finger force during this process and the finger force in the natural pulse diagnosis state. Therefore, the credibility of the results obtained by using this contact method to calibrate the floating, middle, and sinking finger forces is not high. Summary of the Invention

[0006] This application provides a traditional Chinese medicine pulse diagnosis finger force detection system, method, and storage medium to solve the problems in the related art, such as the low credibility of measuring the fingertip force in normal pulse diagnosis using the contact method and the inaccurate distinction of the floating, middle, and sinking finger forces.

[0007] In the first aspect of the embodiments of this application, a traditional Chinese medicine pulse diagnosis finger force detection system is provided, including the following steps: a sensing component, which can be attached to the nail and is used to detect the change in fingertip blood volume under the state of fingertip extrusion through the change in optoelectronic signals and generate a current signal corresponding to the optoelectronic signal; a data acquisition component, which can be worn on the back of the hand and is used to collect the current signal generated by the sensing component and establish communication between the sensing component and the controller, where the communication includes control instructions and data transmission; a controller, which can be worn on the back of the hand and is used to control the operating state of the sensing component and process the current signal read by the data acquisition component, and calculate the fingertip pressure corresponding to the current signal according to the pre-calibrated relationship curve between the current and the fingertip pressure.

[0008] Optionally, the sensing component includes: one or more sensing ends, which are used to detect the change in fingertip blood volume under the extrusion state and generate the corresponding current signal.

[0009] Optionally, the sensing end includes: a flexible circuit board; an optoelectronic chip, which integrates light-emitting diodes emitting different preset wavelengths and a photodiode for detecting light intensity, and generates the current signal in the state of fingertip extrusion.

[0010] Optionally, the optoelectronic chip also integrates low-noise electronic devices for ambient light suppression and an electrical interface, where the optoelectronic chip is electrically connected to the flexible circuit board through the electrical interface.

[0011] Optionally, the sensing end further includes: a sealant, which surrounds the optoelectronic chip and is used to attach the sensing end to the nail and reduce the interference of external ambient light on the optoelectronic signal.

[0012] Optionally, the data acquisition component includes: a data acquisition board, which is connected to each sensing end, collects the current signal generated by the sensing end, and establishes communication between the sensing end and the controller.

[0013] Optionally, the controller is further configured to perform one or more of filtering, temperature compensation, and artifact removal on the current signal.

[0014] Optionally, when the controller performs artifact removal on the optoelectronic signal, it includes: identifying the AC component in the current signal; and eliminating the heartbeat pulsation artifact of traditional Chinese medicine itself by using the correlation between the peak points of the AC component and the fingertip pressure.

[0015] Optionally, the controller is further configured to: obtain the current signal output by the sensing component and the pressure signal of a preset cantilever beam dynamometer during the calibration process; and use a curve model to fit the current signal and the pressure signal to obtain the relevant parameters of the current-fingertip pressure relationship curve.

[0016] Optionally, the curve model is:

[0017]

[0018] where y is the current signal output by the sensing component, A1, A2, f0, and p are constant parameters, and f is the fingertip pressure.

[0019] An embodiment of the second aspect of the present application provides a traditional Chinese medicine pulse diagnosis finger force detection method, which uses the traditional Chinese medicine pulse diagnosis finger force detection system as described in the above embodiment, and includes the following steps: collecting the current signal generated by the sensing end when the fingertip is in the squeezing state; and outputting the fingertip pressure corresponding to the current signal according to the pre-calibrated current-fingertip pressure relationship curve.

[0020] An embodiment of the third aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, and the program is executed by a processor to implement the traditional Chinese medicine pulse diagnosis finger force detection method as described in the above embodiment.

[0021] Therefore, the present application has at least the following beneficial effects:

[0022] Embodiments of the present application can measure the finger force during normal pulse diagnosis in a non-contact manner without affecting the natural touch of traditional Chinese medicine. It can be used to calibrate the pressure magnitudes of floating, middle, and deep pulse diagnoses and measure the fingertip force in remote pulse diagnosis, improving the credibility of pulse diagnosis. It has the advantages of small size, wearable, wireless communication, low cost, etc., improving the convenience of carrying the detection device. The system is easy to operate and can simultaneously detect the finger forces of multiple fingers of traditional Chinese medicine during pulse diagnosis. It reduces the influence of temperature on the system output. It uses the method of local peak to eliminate the influence of the user's heartbeat artifact on the measurement accuracy. It designs a set of calibration methods to improve the credibility of pulse diagnosis and other beneficial effects. Thus, it solves the technical problems in the related art such as low credibility of measuring the fingertip force in normal pulse diagnosis by contact method and inaccurate distinction of floating, middle, and deep finger forces.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0025] Figure 1 is a block diagram of a traditional Chinese medicine pulse diagnosis finger force detection system according to an embodiment of the present application;

[0026] Figure 2 is a basic principle diagram of using the PPG (photoplethysmography) method to measure the static fingertip pressure at the sensing end according to an embodiment of the present application;

[0027] Figure 3 is a structural diagram of a wearable photoelectric fingertip pressure perception system without tactile influence according to an embodiment of the present application;

[0028] Figure 4 is a structural diagram of the PPG sensing end according to an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of removing the heartbeat artifact in the traditional Chinese medicine pulse diagnosis finger force detection according to an embodiment of the present application;

[0030] Figure 6 is a schematic diagram of a calibration method for a traditional Chinese medicine pulse diagnosis finger force system according to an embodiment of the present application;

[0031] Figure 7 is a schematic diagram of the actual use of a traditional Chinese medicine pulse diagnosis finger force detection system according to an embodiment of the present application;

[0032] Figure 8It is a flowchart of a traditional Chinese medicine pulse diagnosis finger force detection method provided according to an embodiment of the present application;

[0033] Figure 9 It is a flowchart of a traditional Chinese medicine pulse diagnosis finger force detection method provided according to an embodiment of the present application. Detailed implementation manners

[0034] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0035] The traditional Chinese medicine pulse diagnosis finger force detection system, method and storage medium according to the embodiments of the present application will be described below with reference to the accompanying drawings. In view of the problem that most of the current methods for measuring the fingertip pressing force mentioned in the above background technology adopt direct contact measurement, this measurement method will affect the touch of the fingertip, and the credibility of the calibration results of the floating, middle and sinking finger forces is not high, which affects the doctor's diagnosis of the pulse condition. The present application provides a traditional Chinese medicine pulse diagnosis finger force detection system. In this system, non-contact pulse diagnosis is adopted, and the finger force during normal pulse diagnosis can be measured in real time without affecting the natural touch of traditional Chinese medicine. Thus, the problems in the related technology that the credibility of measuring the fingertip force in normal pulse diagnosis by the contact method is not high and the floating, middle and sinking finger forces cannot be accurately distinguished are solved.

[0036] Specifically, Figure 1 It is a block diagram of a traditional Chinese medicine pulse diagnosis finger force detection system provided by an embodiment of the present application.

[0037] As Figure 1 shown, the traditional Chinese medicine pulse diagnosis finger force detection system 10 includes: a sensing component 11, a data acquisition component 12 and a controller 13.

[0038] Among them, the sensing component 11 can be attached to the nail and is used to detect the change of the fingertip blood volume under the fingertip extrusion state through the change of the optoelectronic signal and generate a current signal corresponding to the optoelectronic signal; the data acquisition component 12 can be worn on the back of the hand and is used to collect the current signal generated by the sensing component and establish communication between the sensing component and the controller, where the communication includes control instructions and data transmission; the controller 13 can be worn on the back of the hand and is used to control the operating state of the sensing component and process the current signal read by the data acquisition component, and calculate the fingertip pressure corresponding to the current signal according to the pre-calibrated relationship curve between the current and the fingertip pressure.

[0039] It can be understood that in the embodiments of the present application, the sensing component can be attached to the nail, and the change in the blood volume at the fingertip under the extrusion state can be detected through the change in the optoelectronic signal. Among them, the optoelectronic signal is manifested as a corresponding current signal; the data acquisition component is used to collect the current signal generated by the sensing component and establish communication between the sensing component and the controller. Among them, the communication between the sensor and the controller can be through I 2 C communication, including the control instruction of the controller for the sensing component and the transmission of the collected current signal; the controller is used to control the operating state of the sensing component, process the current signal read by the data acquisition component, and can calculate the fingertip pressure corresponding to the current signal according to the pre-calibrated relationship curve between the current and the fingertip pressure, so as to measure the finger force during pulse diagnosis in real time without contact.

[0040] Specifically, the sensing component can be attached to the nail, connected to the data acquisition component, and the data acquisition component is connected to the controller. The data acquisition component and the controller can be worn on the back of the hand.

[0041] In the embodiments of the present application, the sensing component 11 includes: one or more sensing ends, which are used to detect the change in the blood volume at the fingertip under the extrusion state and generate corresponding current signals.

[0042] Among them, the sensing end includes: a flexible circuit board, an optoelectronic chip, and a sealant.

[0043] Specifically, the optoelectronic chip integrates a light-emitting diode that emits different preset wavelengths and a photodiode that detects the light intensity, and generates a current signal under the fingertip extrusion state; the sealant surrounds the optoelectronic chip and is used to attach the sensing end to the nail and reduce the interference of external ambient light on the optoelectronic signal.

[0044] It should be noted that the color of the nail changes when different pressures are applied to the fingertip because the blood volume at the fingertip changes under the extrusion state. When the applied pressure increases, the blood volume at the fingertip decreases and the color becomes lighter. The change in the pressure applied to the fingertip causes a change in the blood perfusion volume in the fingertip capillaries, and the blood has an absorption effect on the incident light, which is finally reflected as a change in the light intensity collected by the photodiode and converts the light signal into an output electrical signal, as Figure 2 shown.

[0045] Among them, the wavelength of the light emitted by the light-emitting diode in the optoelectronic chip can be set according to specific circumstances. Different wavelengths correspond to lights of different colors. For example, the wavelength can be 880 nm or 527 nm, etc. This application preferably selects 880 nm (infrared light) of the optoelectronic chip as the emission light source because infrared light has strong diffraction ability, strong penetration ability for tissues, and the optoelectronic conversion rate of the optoelectronic diode in this application is the largest at infrared light. The specific implementation method of the relationship curve between the preset calibrated current and the fingertip pressure is described in the following embodiments and will not be elaborated here.

[0046] It can be understood that a flexible circuit board is arranged on the upper layer of the sensing end in the embodiment of this application. An optoelectronic chip (Maxim, Max30101) that can emit lights of different wavelengths of green light (527 nm), red light (660 nm), and infrared light (880 nm) is arranged below the flexible circuit board. The sealant surrounds the optoelectronic chip. On the one hand, it is used to reduce the interference of external ambient light on the optoelectronic chip, and on the other hand, it can attach the sensor to the nail. In order to avoid the influence of ambient light on the measurement results of the system, a PE (Polyethylene foam) foam double-sided tape that can be reused a certain number of times can be selected. Among them, the detection method of the sensing end is the PPG method.

[0047] It should be noted that the flexible circuit board can bend and deform along with the finger, which can avoid the influence on the finger during the natural working process to the greatest extent.

[0048] Furthermore, the optoelectronic chip is also integrated with low-noise electronic devices and electrical interfaces that are consistent with the ambient light. The optoelectronic chip is electrically connected to the flexible circuit board through the electrical interface.

[0049] Specifically, the optoelectronic chip internally integrates low-noise electronic devices for ambient light suppression, a temperature sensor, and a standard I 2 C interface. The I 2 C interface relies on the data acquisition component to realize the communication between the control machine and the sensing component.

[0050] In the embodiment of this application, the data acquisition component 12 includes: a data acquisition board.

[0051] Among them, the data acquisition board is connected to each sensing end, acquires the current signal generated by the sensing end, and establishes the communication between the sensing end and the controller.

[0052] Specifically, the data acquisition board and the sensing end jointly form a wearable optoelectronic fingertip pressure perception system (PFFS) without tactile influence. The structure is as Figure 3 shown, including a PPG sensing end placed outside the nail and a 3-way data acquisition circuit board for data transmission. Among them, the main structure of the PPG sensing end is as Figure 4As shown in the figure, the upper layer is a flexible circuit board. Below the flexible circuit board are optoelectronic chips (Maxim, Max30101) with different wavelengths of green light (527nm), red light (660nm), and infrared light (880nm). The inside is integrated with low-noise electronic devices for ambient light suppression, a temperature sensor, and a standard I 2 C interface. Among them, the optoelectronic chip is electrically connected to the flexible circuit board.

[0053] In the embodiment of the present application, the controller is further configured to perform one or more processes of filtering, temperature compensation, and artifact removal on the current signal. The controller can control the operating state of the fingertip optoelectronic sensor and read the optoelectronic signals collected by the data acquisition component through I 2 C communication.

[0054] In the embodiment of the present application, when the controller performs artifact removal processing on the optoelectronic signal, it includes: identifying the AC component in the current signal; using the correlation relationship between the peak points of the AC component and the fingertip pressure to eliminate the heartbeat pulsation artifact of the Chinese medicine doctor himself.

[0055] It should be noted that when the Chinese medicine doctor wears the PPFS, during the pulse diagnosis process, the signals collected by the data acquisition component include not only DC signal components such as fingertip tissue, bones, and venous blood volume related to the pressure applied to the fingertip, but also AC signal components related to the periodic pumping pulsation of the human heart, as shown in Figure 5 (a). Although this AC signal component is very small, it will still affect the measurement of the DC component by the system in the case of small pressure detection, that is, it will affect the accurate measurement of the pressure applied to the fingertip. Also, because the frequency of this AC component is relatively low (<1Hz), conventional low-pass filtering has no effect on this and will also affect the real-time performance of the system. Therefore, the present application directly uses the peak points of the AC component to be correlated with the fingertip pressure to eliminate the influence of the heartbeat fluctuation artifact of the Chinese medicine doctor himself on the optoelectronic signal, as shown in Figure 5 (b).

[0056] In the embodiment of the present application, the controller 13 is further configured to: obtain the current signal output by the sensing component during the calibration process and the pressure signal of the preset cantilever beam dynamometer; use the curve model to fit the current signal and the pressure signal to obtain the relevant parameters of the current-fingertip pressure relationship curve.

[0057] Among them, the curve model is:

[0058]

[0059] Among them, y is the current signal output by the sensing component, A1, A2, f0, and p are constant parameters, and f is the fingertip pressure.

[0060] Specifically, in order to obtain the correspondence between the output current signal of the PPFS and the fingertip pressure, it is necessary to fit the measured data. Since this system detects the change in fingertip blood volume under pressing stimulation by means of PPG, and the maximum blood volume of the fingertip is a fixed value, that is to say, the blood volume will eventually reach an equilibrium state under the action of external force, and this phenomenon conforms to the Hill response curve followed by the biological system to external stimuli. Therefore, the relationship between the output current signal of the PPFS and the fingertip pressing force satisfies the Hill equation, as shown above.

[0061] It can be understood that before detecting the floating, middle, and sinking finger forces applied to the fingertip in traditional Chinese medicine pulse diagnosis in this application, it is necessary to calibrate the output of the system first. A commercial cantilever beam force gauge (AVIA Semiconductor, HX711) can be used to calibrate the system, as Figure 6 shown. Perform multiple pressing processes on the cantilever beam force gauge and synchronously collect the output I of the component and the output F of the force gauge. Then, fit according to the Hill curve model to obtain the relationship curve between the output of the acquisition component and the fingertip pressure. Finally, during the process of pulse diagnosis by the user, calculate the pressure applied by the fingertip during the actual pulse diagnosis according to the relationship curve I-F.

[0062] In addition, after this application uses the Hill equation to fit the system output and the pressing pressure multiple times, it is found that the correlation indices of the fitting are all above 0.99. Therefore, this application uses the method of Hill curve fitting to calibrate the relationship between the output current signal of the system and the fingertip pressure, so as to calculate the fingertip pressure through the output current signal of the system during the process of traditional Chinese medicine pulse diagnosis.

[0063] Figure 7 This is the structural diagram of the system of this application when used in actual pulse diagnosis. Each of the index finger, middle finger, and ring finger is equipped with a PPG sensor. The pins on the optoelectronic chip are led out through a flexible circuit board and connected to a three-channel signal acquisition circuit board fixed on the back of the hand, and finally connected to a microcontroller. The flexible circuit board can bend and deform along with the finger, which can avoid the influence on the finger during the natural working process to the greatest extent. The microcontroller controls the operating state of the fingertip optoelectronic sensor and reads the collected current signal through I 2 C communication, and performs a series of processing on the signal such as filtering, temperature compensation, and artifact removal. Then, the signal is transmitted to the PC side through Bluetooth wireless communication for recording and visualization operations.

[0064] The traditional Chinese medicine pulse diagnosis finger force detection system proposed according to the embodiments of the present application can, without affecting the natural touch of traditional Chinese medicine, use a non-contact method to measure the finger force during normal pulse diagnosis in real time, which can be used to calibrate the pressure magnitudes of floating, middle, and deep pulse diagnoses and measure the fingertip force in remote pulse diagnosis, improving the credibility of pulse diagnosis; it has the advantages of small size, wearable, wireless communication, low cost, etc., improving the convenience of carrying the detection device; the system is easy to operate, and can simultaneously detect the finger forces of multiple fingers of traditional Chinese medicine during pulse diagnosis; it reduces the influence of temperature on the system output; adopts the method of local peak to eliminate the influence of the user's heartbeat artifact on the measurement accuracy; designs a set of convenient and fast calibration methods, improving the credibility of the fingertip force during pulse diagnosis detection.

[0065] Next, the traditional Chinese medicine pulse diagnosis finger force detection method proposed according to the embodiments of the present application will be described with reference to the accompanying drawings.

[0066] Figure 8 It is a flowchart of the traditional Chinese medicine pulse diagnosis finger force detection method according to the embodiments of the present application.

[0067] As Figure 8 shown, this traditional Chinese medicine pulse diagnosis finger force detection method uses the above traditional Chinese medicine pulse diagnosis finger force detection system and includes the following steps:

[0068] In step S101, the current signal generated by the sensing end of the fingertip in the squeezing state is collected.

[0069] Among them, in the embodiments of the present application, the current signal generated by the sensing end of the fingertip in the squeezing state can be collected through the above traditional Chinese medicine pulse diagnosis finger force detection system.

[0070] In step S102, the fingertip pressure corresponding to the current signal is output according to the pre-calibrated relationship curve between the current and the fingertip pressure.

[0071] Among them, the relationship curve between the current signal and the fingertip pressure has been described in the above embodiments and will not be elaborated here.

[0072] Specifically, the flow of the traditional Chinese medicine pulse diagnosis finger force detection method described in the embodiments of the present application is as Figure 9As shown, first, the traditional Chinese medicine doctor wears the PFFS and performs multiple pressing processes on the cantilever beam dynamometer according to the common finger postures and behaviors during pulse diagnosis, and synchronously collects the output I of the PFFS and the output F of the dynamometer. Then, the relationship curve parameters between the PFFS output and the force are obtained by fitting according to the Hill curve model. Finally, the traditional Chinese medicine doctor wears the PFFS to perform normal pulse diagnosis operations, and calculates the force F exerted by the fingertip during the actual pulse diagnosis process according to the relationship curve of I-F based on the output I of the PFFS. Among them, before the PFFS detects the floating, middle, and sinking finger forces exerted by the fingertip during traditional Chinese medicine pulse diagnosis, it is necessary to calibrate the output of the PFFS first. In this application, a commercial cantilever beam dynamometer is used to calibrate the system.

[0073] It should be noted that the foregoing explanation of the embodiment of the traditional Chinese medicine pulse diagnosis finger force detection system also applies to the traditional Chinese medicine pulse diagnosis finger force detection method of this embodiment, and will not be repeated here.

[0074] According to the traditional Chinese medicine pulse diagnosis finger force detection method proposed in the embodiments of the present application, the finger force magnitude during normal pulse diagnosis can be measured non-contact through the traditional Chinese medicine pulse diagnosis finger force detection system, a set of calibration methods are set for the pulse diagnosis finger force detection system, and the credibility of pulse diagnosis is improved.

[0075] The embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned traditional Chinese medicine pulse diagnosis finger force detection method is implemented.

[0076] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0077] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0078] Any process or method description depicted in the flowchart or described otherwise herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a customized logical function or process. The scope of the preferred embodiments of this application includes additional implementations where functions may be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed. This should be understood by those skilled in the art to which the embodiments of this application pertain.

[0079] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays, field-programmable gate arrays, and the like.

[0080] Those of ordinary skill in the art of this technology can understand that all or part of the steps carried out in implementing the methods of the above embodiments can be completed by instructing relevant hardware through a program. The said program can be stored in a computer-readable storage medium, and when executed, includes one or a combination of the steps of the method embodiments.

[0081] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A traditional Chinese medicine pulse diagnosis finger force detection system, characterized in that, Comprising: A sensing component, which can be attached to the nail and is used to detect the change in fingertip blood volume under the state of fingertip extrusion through the change of optoelectronic signals and generate a current signal corresponding to the optoelectronic signal; A data acquisition component, which can be worn on the back of the hand and is used to acquire the current signal generated by the sensing component and establish communication between the sensing component and the controller, wherein the communication includes control instructions and data transmission; A controller, which can be worn on the back of the hand and is used to control the operating state of the sensing component and process the current signal read by the data acquisition component, and calculate the fingertip pressure corresponding to the current signal according to the relationship curve between the pre-calibrated current and the fingertip pressure.

2. The traditional Chinese medicine pulse diagnosis finger force detection system according to claim 1, wherein The sensing component includes: One or more sensing ends, which are used to detect the change in fingertip blood volume under the extrusion state and generate the corresponding current signal.

3. The TCM pulse diagnosis finger force detection system according to claim 2, characterized in that: The sensing end includes: A flexible circuit board; An optoelectronic chip, which integrates light-emitting diodes emitting different preset wavelengths and a photodiode for detecting light intensity, and generates the current signal in the state of fingertip extrusion.

4. The TCM pulse diagnosis finger force detection system according to claim 3, characterized in that: The optoelectronic chip also integrates low-noise electronic devices for ambient light suppression and an electrical interface, wherein the optoelectronic chip is electrically connected to the flexible circuit board through the electrical interface.

5. The TCM pulse diagnosis finger force detection system according to claim 3, characterized in that: The sensing end further includes: A sealant, which surrounds the optoelectronic chip and is used to attach the sensing end to the nail and reduce the interference of external ambient light on the optoelectronic signal.

6. The TCM pulse diagnosis finger force detection system according to claim 1, characterized in that: The data acquisition component includes: A data acquisition board, which is connected to each sensing end, acquires the current signal generated by the sensing end, and establishes communication between the sensing end and the controller.

7. The traditional Chinese medicine pulse diagnosis finger force detection system according to claim 1, characterized in that The controller is further used to perform one or more of filtering, temperature compensation, and artifact removal on the current signal.

8. The TCM pulse diagnosis finger force detection system according to claim 7, characterized in that: When the controller performs artifact removal processing on the optoelectronic signal, it includes: Identifying the AC component in the current signal; Using the correlation between the peak points of the AC component and the fingertip pressure to eliminate the heartbeat pulsation artifact of traditional Chinese medicine itself.

9. The traditional Chinese medicine pulse diagnosis finger force detection system according to claim 1, wherein The controller is further used for: Obtaining the current signal output by the sensing component and the pressure signal of a preset cantilever beam dynamometer during the calibration process; Using a curve model to fit the current signal and the pressure signal to obtain the relevant parameters of the relationship curve between the current and the fingertip pressure.

10. The traditional Chinese medicine pulse diagnosis finger force detection system according to claim 9, characterized in that, The curve model is: Wherein, y is the current signal output by the sensing component, A1, A2, f0 and p are constant parameters, and f is the fingertip pressure.

11. A method for detecting the finger force of traditional Chinese medicine pulse diagnosis, characterized in that, The method uses the traditional Chinese medicine pulse diagnosis finger force detection system according to any one of claims 1-10, wherein the method includes the following steps: Acquiring the current signal generated by the sensing end under the state of fingertip extrusion; Outputting the fingertip pressure corresponding to the current signal according to the pre-calibrated relationship curve between the current and the fingertip pressure.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: This program is executed by a processor to be used to implement the traditional Chinese medicine pulse diagnosis finger force detection method according to claim 11.

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