Ankle pump exercise monitoring and evaluation method and device based on pressure sensor

Abstract

The application discloses a kind of based on pressure sensor's ankle pump movement monitoring and evaluation method, equipment and storage medium, method includes: fixed pressure sensor, one end of spring is connected with pressure sensor, the other end of the spring is worn on the toe of patient, wherein, pressure sensor is resistance strain pressure sensor. By spring deformation, pressure sensor obtains the first pressure value of patient to carry out ankle pump movement, the output sensitivity of pressure sensor is temperature compensated, and the first pressure value is calibrated, and second pressure value is obtained. According to second pressure value, the movement state of ankle pump movement is confirmed, the movement time corresponding to movement state is obtained, and according to movement time and second pressure value, it is judged whether movement state is effective. Realize accurate measurement pressure value of ankle pump movement on the basis of low cost, and real-time detection that patient carries out the effectiveness of ankle pump movement. Overcome the shortcomings that ankle pump movement cannot be measured in prior art monitoring ankle pump movement.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation therapy, and in particular to a pressure sensor-based ankle pump motion monitoring and evaluation method, device and storage medium. Background Art

[0002] Ankle pump exercises refer to active or passive flexion, extension, and rotation of the ankle joint, including plantar flexion, dorsiflexion, and rotation. The ankle movement drives contraction of the lower limb, acting like a pump, promoting blood circulation and preventing deep vein thrombosis (DVT). Traditionally, ankle pump exercises are performed by medical staff, who monitor and assist patients. This approach consumes significant human resources and hinders patient mastery of the exercise, hindering recovery.

[0003] Existing ankle pump monitoring methods based on posture sensors can only detect the angle of the ankle pump movement, not the magnitude of the ankle pump's force. The posture sensor can also be affected by external magnetic fields, resulting in inaccurate measurement data. Ankle pump monitoring methods based on pressure detection units can only detect the presence of a pressure signal, not the specific force of the ankle pump movement, resulting in inaccurate output data. Summary of the Invention

[0004] The purpose of the present invention is to provide a method, device and storage medium for monitoring and evaluating ankle pump movement based on a pressure sensor to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0005] The solution of the present invention to solve its technical problem is to provide a pressure sensor-based ankle pump movement monitoring and evaluation method, equipment and storage medium.

[0006] According to an embodiment of the first aspect of the present invention, a method for monitoring and evaluating ankle pump movement based on a pressure sensor is provided, comprising:

[0007] A fixed pressure sensor is provided, wherein one end of a spring is connected to the pressure sensor, and the other end of the spring is worn on the patient's toe, wherein the pressure sensor is a resistance strain gauge pressure sensor;

[0008] The pressure sensor obtains a first pressure value of the patient performing ankle pump exercise through spring deformation, performs temperature compensation on the output sensitivity of the pressure sensor, and calibrates the first pressure value to obtain a second pressure value;

[0009] The motion state of the ankle pump movement is confirmed according to the second pressure value, the motion time corresponding to the motion state is obtained, and whether the motion state is valid is determined according to the motion time and the second pressure value.

[0010] Furthermore, the temperature compensation of the output sensitivity of the pressure sensor specifically includes:

[0011] Identifying a strain region of an elastic body in the pressure sensor, attaching a resistance strain gauge to the strain region of the elastic body, and calculating a ratio of a resistance change in the resistance strain gauge to a resistance value of the resistor;

[0012] Using the resistance strain gauge to build a Wheatstone bridge, setting a compensation resistor to connect with the Wheatstone bridge to form an induction circuit, and calculating the total input resistance of the induction circuit;

[0013] The excitation voltage and output voltage of the sensing circuit are obtained, and the output sensitivity S is calculated according to the ratio, the total input resistance, the excitation voltage, and the output voltage.

[0014] Furthermore, the calculation process of the ratio specifically includes:

[0015] Obtaining the width and thickness of the elastic body strain zone, and calculating the bending section coefficient of the elastic body strain zone;

[0016] Obtaining the bonding distance between the two sets of resistance strain gauges and the load on the elastic body strain zone, and calculating the bending moment on the cross section of the elastic body strain zone;

[0017] Obtaining the elastic modulus of the elastomeric material and determining the strain region of the elastomeric body based on the bending moment and the bending section coefficient of the cross section;

[0018] The sensitivity coefficient of the resistance strain gauge is obtained, and the ratio is calculated according to the strain area of ​​the elastic body.

[0019] Furthermore, the calibration process of the first pressure value specifically includes:

[0020] Obtain the output sensitivity S(t2) at the calibration temperature and the output sensitivity S(t1) at room temperature, and assume that the temperature change of the output sensitivity is ΔS, ΔS=S(t2)-S(t1);

[0021] Obtain the full-scale output Y(FS), calibration temperature T2 and room temperature T1 of the pressure sensor, and output the expected sensitivity coefficient α according to the temperature change ΔS.

[0022] At the calibration temperature T2, obtain the rated range output sensitivity y1 and the zero output value y0, and according to the expected sensitivity coefficient α, use the calibration formula

[0023]

[0024] , calibrate the first pressure value and obtain the second pressure value

[0025] Further, the judging process that the motion state is valid specifically comprises:

[0026] When the second pressure value is positive, it is confirmed that the current motion state is plantar flexion motion;

[0027] The motion time of the plantar flexion motion is acquired, and it is judged whether the second pressure value is greater than a set pressure threshold and the motion time is longer than a set time threshold;

[0028] If yes, the plantar flexion motion is valid motion.

[0029] Further, the judging process that the motion state is invalid specifically comprises:

[0030] It is judged whether the second pressure value is less than a set pressure threshold or the motion time is less than a set time threshold;

[0031] If yes, the plantar flexion motion is invalid motion.

[0032] Further, the judging process that the motion state is valid specifically comprises:

[0033] When the second pressure value is negative, it is confirmed that the current motion state is dorsiflexion motion;

[0034] The motion time of the dorsiflexion motion is acquired, and it is judged whether the absolute value of the second pressure value is greater than a set pressure threshold and the motion time is longer than a set time threshold;

[0035] If yes, the dorsiflexion motion is valid motion.

[0036] Further, the judging process that the motion state is invalid specifically comprises:

[0037] It is judged whether the absolute value of the second pressure value is less than a set pressure threshold or the motion time is less than a set time threshold;

[0038] If yes, the dorsiflexion motion is invalid motion.

[0039] According to the embodiment of the second aspect of the application, an electronic device is provided, comprising a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize a pressure sensor based ankle pump motion monitoring and evaluation method according to the embodiment of the first aspect of the application.

[0040] According to the embodiment of the third aspect of the application, a storage medium is provided, which stores a computer program, and the computer program is executed by a processor to realize a pressure sensor based ankle pump motion monitoring and evaluation method according to the embodiment of the first aspect of the application.

[0041] The beneficial effects of the present invention are as follows: by using a pressure sensor and a spring to monitor ankle pump movement, and performing temperature compensation on the output sensitivity of the pressure sensor, the first pressure value measured by the pressure sensor is accurately calibrated to obtain a second pressure value, and the movement state is confirmed by the second pressure value. The effectiveness of the ankle pump movement at this time is determined based on the movement time and the second pressure value, thereby achieving accurate measurement of the pressure value of the ankle pump movement at a low cost and real-time detection of the effectiveness of the patient's ankle pump movement. This overcomes the disadvantage of the prior art in monitoring ankle pump movement that the strength of the ankle pump movement cannot be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic flow chart of a pressure sensor-based ankle pump exercise monitoring and evaluation method provided by one embodiment of the present invention;

[0043] Figure 2 is a circuit diagram of a pressure sensor provided by one embodiment of the present invention;

[0044] Figure 3 Schematic diagram of a patient performing ankle pump exercise provided by one embodiment of the present invention.

[0045] Reference numerals: pressure sensor 100 , spring 200 . DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and should not be construed as limiting the present invention.

[0047] It should be noted that although the system diagrams illustrate functional modules, in some cases, the steps shown or described may be performed in a different order than the module divisions in the system or the order in the flowcharts. The terms "first," "second," and so on in the specification, claims, and drawings are used to distinguish similar items and are not necessarily used to describe a specific order or sequence.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0049] Reference Figure 1 and Figure 3 According to an embodiment of the first aspect of the present invention, a method for monitoring and evaluating ankle pump movement based on a pressure sensor comprises the following steps:

[0050] S100, fixing the pressure sensor, one end of the spring is connected to the pressure sensor, and the other end of the spring is worn on the patient's toe, wherein the pressure sensor is a resistive strain gauge pressure sensor.

[0051] In this embodiment, the pressure sensor 100 is fixed in a fixed position and does not move. The spring 200 is connected to the pressure sensor 100 and is worn on the patient's toe, binding the patient's toe and the spring 200 together. When the patient performs ankle pump exercises, the toe causes the spring 200 to deform, causing the pressure sensor 100 connected to the spring 200 to sense the force and generate an electrical signal.

[0052] In the present invention, the pressure sensor 100 used is a resistance strain type pressure sensor 100 .

[0053] S200 , the pressure sensor obtains a first pressure value of the patient performing ankle pump exercise through spring deformation, performs temperature compensation on the output sensitivity of the pressure sensor, and calibrates the first pressure value to obtain a second pressure value.

[0054] In this embodiment, by attaching spring 200 to the patient's toe in S100, the patient's ankle pump exercise causes spring 200 to deform, enabling pressure sensor 100 to collect a first pressure value generated by the ankle pump exercise. Since resistive strain gauge sensors are susceptible to ambient temperature interference, the output first pressure value may be inaccurate. Therefore, temperature compensation is required for pressure sensor 100 to calibrate the first pressure value and obtain a second pressure value.

[0055] That is, the output sensitivity of the resistive strain gauge force sensor is temperature compensated, and the force generated by the ankle pump movement is precisely calibrated using the temperature compensation method to obtain a second pressure value.

[0056] S300: Confirm the motion state of the ankle pump exercise according to the second pressure value, obtain the motion time corresponding to the motion state, and determine whether the motion state is valid according to the motion time and the second pressure value.

[0057] In this embodiment, the patient's current ankle pump exercise state is determined based on the second pressure value calibrated in S200. Based on the confirmed exercise state, the exercise time in that exercise state is obtained. Using the exercise time in that exercise state and the second pressure value in that exercise state, it is determined whether the exercise state is a valid exercise.

[0058] The ankle pump movement is monitored by the pressure sensor 100 and the spring 200, and the output sensitivity of the pressure sensor 100 is temperature compensated to achieve precision calibration of the first pressure value measured by the pressure sensor 100 to obtain a second pressure value. The movement state is then confirmed by the second pressure value, and whether the ankle pump movement is effective at this time is determined based on the movement time of the movement state and the second pressure value of the movement state, thereby achieving accurate measurement of the pressure value of the ankle pump movement at a low cost and real-time detection of the effectiveness of the patient's ankle pump movement. This overcomes the disadvantage of the existing technology that monitoring ankle pump movement cannot measure the strength value of the ankle pump movement.

[0059] Reference Figure 1 and Figure 2 In some embodiments of the present invention, in S200, temperature compensation specifically includes the following steps:

[0060] S210 , confirming the elastic body strain area in the pressure sensor, on which a resistance strain gauge is attached, and calculating using the resistance change of the resistance strain gauge and the resistance value of the resistance strain gauge to obtain a ratio between the two.

[0061] In this embodiment, the resistance strain gauge is mostly attached to the elastic body of pressure sensor 100. When the patient performs ankle pump exercises, pressure sensor 100 is stressed via spring 200, generating microstrain within the elastic range of the elastic body. Therefore, the elastic body strain area needs to be identified. The resistance change dR and resistance value R of the resistance strain gauge are obtained, and the ratio dR / R is calculated using the resistance change dR and resistance value R.

[0062] Among them, according to the principle of resistance strain:

[0063]

[0064] , k represents the sensitivity coefficient of the resistance strain gauge, and its value at room temperature is 2.08, and ε represents the strain area of ​​the elastic body.

[0065] S220 , connecting the resistance strain gauges through a bridge method to build a Wheatstone bridge, setting a compensation resistor, electrically connecting the compensation resistor to the Wheatstone bridge to form a sensing circuit, and calculating based on the resistance value of the resistance strain gauge and the resistance value of the compensation resistor to obtain a total input resistance of the sensing circuit.

[0066] In this embodiment, a Wheatstone bridge is constructed by four resistance strain gauges R. Due to random errors or deviations in the size processing of the elastic body strain area, the sensitivity coefficient k of the resistance strain gauge R, and the pasting position of the four resistance strain gauges, the output sensitivity of different resistance strain type pressure sensors 100 may have a large deviation. Therefore, in order to meet the standardization requirements of the output sensitivity, a sensitivity compensation resistor R needs to be connected in series in the circuit. s .

[0067] In the process of obtaining the first pressure value, the resistance strain gauge R is easily heated and affected by the external ambient temperature. When the temperature rises, the elastic modulus of the elastomer material decreases, making the output sensitivity larger, thus affecting the measurement result. Therefore, in order to ensure that the output sensitivity is a constant value in the full temperature range, the circuit needs to be connected in series with a temperature compensation resistor R t .

[0068] That is to say, a Wheatstone bridge is built by four resistance strain gauges R, and the compensation resistors include: sensitivity compensation resistor R s and temperature compensation resistor R t , connect the compensation resistor in series with the Wheatstone bridge, change the compensation resistor, and thus ensure that the output sensitivity of the pressure sensor 100 is a constant value. According to the above resistance, the total input resistance R of the sensing circuit is calculated. input .

[0069] S230 , obtaining the output voltage and the excitation voltage of the sensing circuit in S220 , and performing calculation using the output voltage, the excitation voltage, the total input resistance in S220 , and the ratio in S210 to obtain the output sensitivity.

[0070] In this embodiment, referring to Figure 2 , using the Wheatstone bridge, when the pressure sensor 100 is subjected to force, the change of two resistance strain gauges R is -dR, and the change of the other two resistance strain gauges R is dR. According to the voltage division principle, the output voltage U o And the excitation voltage U i They are:

[0071]

[0072]

[0073] , simplified to:

[0074]

[0075] Among them, R1=R2=R3=R4=R, and U represents the voltage value at both ends of the Whittenbridge bridge.

[0076] The output sensitivity S of the resistance strain gauge pressure sensor 100 is determined by the output voltage U o And the excitation voltage U i The ratio of is obtained:

[0077]

[0078] Reference Figure 1 In some embodiments of the present invention, in S210, the ratio calculation process specifically includes the following steps:

[0079] S211, obtaining a width value and a thickness value of the elastic body strain zone, and performing calculation based on the width value and the thickness value to obtain a bending section coefficient of the elastic body strain zone.

[0080] S212 , obtaining the bonding distance between the two sets of resistance strain gauges and the load on the elastic body strain zone, and performing calculation based on the bonding distance and the load to obtain the bending moment on the cross section of the elastic body strain zone.

[0081] S213, obtaining the elastic modulus of the elastomer material, and confirming the strain zone of the elastomer based on the elastic modulus, the bending moment of the cross section obtained in S212, and the bending section coefficient obtained in S211.

[0082] S214, obtaining a sensitivity coefficient of the resistance strain gauge, and calculating a ratio based on the elastic body strain area obtained in S213 and the sensitivity coefficient using the principle of resistance strain.

[0083] In this embodiment, according to Hooke's law, when the pressure sensor 100 is subjected to force through the spring 200, the elastic body strain region will generate micro strain within the linear elastic range. The elastic body strain region ε is expressed as

[0084]

[0085] , where π represents stress in MPa and E represents elastic modulus in MPa.

[0086] The stress π is determined by the ratio of the bending moment M to the bending section modulus W:

[0087]

[0088] , where the bending moment M of the cross section can be obtained by measuring the load F obtained by the double flat "S" beam structure stainless steel force sensor and the relationship between the two sets of resistance strain gauges R:

[0089]

[0090] The bending section coefficient W is determined by the width b and thickness h of the elastic body strain zone:

[0091]

[0092] Using the sensitivity coefficient k of the resistance strain gauge and the elastic body strain area ε obtained in S213, it can be known from the principle of resistance strain that:

[0093]

[0094] , and thus the ratio of the resistance change dR to the resistance R is calculated.

[0095] According to the formula for the elastic body strain range ε, the output sensitivity S of the resistance strain type pressure sensor 100 is calculated as:

[0096]

[0097]

[0098] Reference Figure 1 In some embodiments of the present invention, in S200, the calculation process of the second pressure value specifically includes the following steps:

[0099] S240, detect the output sensitivity S(t2) of the pressure sensor at the calibration temperature and the output sensitivity S(t1) of the pressure sensor at room temperature, and assume that the temperature change of the output sensitivity of the pressure sensor is ΔS, ΔS = S(t2)-S(t1).

[0100] S250, obtain the full-scale output Y(FS) of the pressure sensor, detect the calibration temperature T2 and the room temperature T1, and calculate the expected sensitivity coefficient α based on the full-scale output Y(FS), the calibration temperature T2, the room temperature T1, and the temperature change ΔS obtained in S240.

[0101] S260, at the calibration temperature T2, obtain the rated range output sensitivity y1 and the zero output value y0, according to the expected sensitivity coefficient α, the quantitative range output sensitivity y1 and the zero output value y0 obtained in S250, using the calibration formula

[0102]

[0103] , calibrate the first pressure value to obtain the second pressure value

[0104] In this embodiment, as the temperature changes, the output sensitivity of the pressure sensor 100 also changes with the temperature. Assuming that the change in the output sensitivity of the pressure sensor 100 with the temperature is ΔS, ΔS is expressed as:

[0105] ΔS=S(t2)-S(t1)

[0106] , where S(t2) represents the output sensitivity of the pressure sensor 100 at the calibration temperature, and S(t1) represents the output sensitivity of the pressure sensor 100 at room temperature.

[0107] The expected sensitivity coefficient α is expressed as:

[0108]

[0109] , where ΔT represents the operating temperature range of pressure sensor 100, T2 represents the calibration temperature, and T1 represents room temperature. Y(FS) represents the full-scale output of pressure sensor 100. Full-scale output Y(FS) of pressure sensor 100 is obtained by calibrating the rated range at a typical temperature.

[0110] By using the calculated expected sensitivity coefficient α and the calibration formula, the output sensitivity of the pressure sensor 100 is temperature compensated and calibrated to achieve the first pressure value and obtain the second pressure value. The calibration formula is:

[0111]

[0112] ,in, It represents the final expected output force value, that is, the second pressure value, y1 represents the rated range output sensitivity at the calibration temperature, and y0 represents the zero position output at the calibration temperature.

[0113] By calculating the desired sensitivity coefficient α based on the inherent parameters of the elastic strain zone and the resistance strain gauge in pressure sensor 100, the output first pressure value is calibrated using this desired sensitivity coefficient α, thereby obtaining a highly accurate second pressure value. This reduces the influence of the external environment. Compared with the large amount of data processing required in the prior art, the present invention reduces the amount of computation required and is faster, resulting in more real-time data. Furthermore, the second pressure value allows for intuitive monitoring of the specific force of the ankle pump movement, facilitating real-time monitoring by medical personnel.

[0114] Reference Figure 1 and Figure 2 In some embodiments of the present invention, in S300, the process of determining whether the motion state is valid specifically includes the following steps:

[0115] S310: If the calibrated second pressure value is a positive value, the current movement state is plantar flexion movement.

[0116] S320: Obtain the movement time of the plantar flexion movement, and determine whether the second pressure value is greater than a set pressure threshold and whether the movement time exceeds a set time threshold.

[0117] S321, if yes, then the plantar flexion exercise is considered effective.

[0118] In this embodiment, when the second pressure value is greater than zero, that is, , it is considered that the second pressure value is within the positive range. At this time, the spring 200 is squeezed, deformed and generates pressure, which means that the patient is performing plantar flexion exercise.

[0119] The duration of the plantar flexion movement is obtained. The movement duration is the time during which the second pressure value remains greater than a set pressure threshold during the plantar flexion movement. In other words, the time period during which the second pressure value is less than the set pressure threshold is not counted toward the movement duration of the plantar flexion movement. In this embodiment, the set pressure threshold is the force value that satisfies the plantar flexion movement condition.

[0120] For this plantar flexion movement, when the second pressure value is greater than the set pressure threshold and the movement time exceeds the set time threshold, this plantar flexion movement is considered to be a valid movement.

[0121] S330: Determine whether the second pressure value is less than a set pressure threshold or whether the exercise time is less than a set time threshold based on the obtained exercise time.

[0122] S331, if yes, then the plantar flexion movement is considered invalid.

[0123] In this embodiment, after confirming that the patient is performing plantar flexion exercise through the second pressure value, it is determined whether the calibrated second pressure value is less than the set pressure threshold. If so, the plantar flexion exercise is considered to be ineffective.

[0124] Alternatively, it is determined whether the obtained movement time is less than a set time threshold. If so, the plantar flexion movement is considered to be an invalid movement.

[0125] In this embodiment, it can be confirmed that the plantar flexion movement is invalid through the above two judgment conditions.

[0126] Reference Figure 1 and Figure 2 In some embodiments of the present invention, in S300, the process of determining whether the motion state is valid further specifically includes the following steps:

[0127] S340: If the calibrated second pressure value is a negative value, the current exercise state is back extension exercise.

[0128] S350: Obtain the exercise time of the back extension exercise, and determine whether the absolute value of the second pressure value is greater than the set pressure threshold and whether the exercise time exceeds the set time threshold.

[0129] S351, if yes, then this back extension exercise is considered effective.

[0130] In this embodiment, when the second pressure value is less than zero, that is, When , it is considered that the second pressure value is within the negative range. At this time, the spring 200 is stretched, deformed and generates tension, which means that the patient is performing back extension exercise.

[0131] The duration of the back extension exercise is obtained. The exercise duration is the time during which the absolute value of the second pressure value remains greater than the set pressure threshold. In other words, the time period during which the absolute value of the second pressure value is less than the set pressure threshold is not counted towards the exercise duration of the back extension exercise. In this embodiment, the set pressure threshold is the force value that satisfies the back extension exercise condition.

[0132] For this back extension exercise, when the absolute value of the second pressure value is greater than the set pressure threshold and the exercise time exceeds the set time threshold, this back extension exercise is considered to be a valid exercise.

[0133] S360: Determine, based on the obtained movement time, whether the absolute value of the second pressure value is less than the set pressure threshold, or whether the movement time is less than the set time threshold.

[0134] S361, if yes, then this back extension exercise is considered invalid.

[0135] In this embodiment, after confirming that the patient is performing back extension exercise through the second pressure value, the calibrated second pressure value is judged to be less than the set pressure threshold. If so, the back extension exercise is considered to be ineffective.

[0136] Alternatively, the obtained exercise time is judged to be less than a set time threshold. If so, the back extension exercise is considered to be an invalid exercise.

[0137] In this embodiment, the above two judgment conditions can be used to confirm that the back extension exercise is invalid.

[0138] The present invention determines whether the ankle pump exercise is effective through the exercise time during the ankle pump exercise and the calibrated second pressure value. The exercise time in the present invention is the time when the second pressure value meets the pressure threshold of the corresponding exercise state, which reduces the interception of invalid time periods and can accurately judge the effectiveness of the exercise state. The second pressure value is a calibrated pressure value. The ankle pump exercise is evaluated through the judgment factors after double calibration, thereby improving the accuracy of the evaluation.

[0139] It should be noted that the embodiments of the first aspect of the present invention also include: recording the exercise time and the corresponding second pressure value corresponding to the exercise state of each ankle pump exercise to form a data group, uploading several groups of data groups to the cloud server, and medical staff can obtain several groups of data groups through the terminal to monitor the patient's rehabilitation exercise in real time.

[0140] According to an embodiment of the second aspect of the present invention, an electronic device includes:

[0141] A memory for computer programs; a processor for executing the computer programs stored in the memory. When the processor executes the program stored in the memory, the processor is used to execute a method for monitoring and evaluating ankle pump movements based on a pressure sensor as described in an embodiment of the first aspect of the present invention.

[0142] The processor and the memory may be connected via a bus or other means.

[0143] The memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs, such as the pressure sensor-based ankle pump motion monitoring and assessment method described in an embodiment of the present invention. The processor executes the non-transitory software program and instructions stored in the memory to implement the pressure sensor-based ankle pump motion monitoring and assessment method according to the first embodiment of the present invention.

[0144] The memory may include a program storage area and a parameter storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the parameter storage area may store the execution of the above-mentioned ankle pump motion monitoring and evaluation method based on a pressure sensor. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory may optionally include a memory remotely located relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0145] According to an embodiment of the third aspect of the present invention, a storage medium is characterized in that it includes: a computer program stored therein, the computer program being used to be executed by a processor as a pressure sensor-based ankle pump movement monitoring and evaluation method according to the first aspect of the present invention.

[0146] The non-transient software program and instructions required to implement the above-mentioned terminal selection method are stored in the memory, and when executed by one or more processors, they execute the first ankle pump movement monitoring and evaluation method based on pressure sensor of the present invention.

[0147] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium is included in any method or technology for storing information (such as computer-readable instructions, parameter structures, program modules, or other parameters) and is volatile and non-volatile, removable, and non-removable. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, or other memory technology, CD-ROM, digital versatile disks (DVD), or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media generally include computer-readable instructions, parameter structures, program modules, or other parameters in a modulated parameter signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0148] The preferred embodiments of the present invention are described in detail above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for monitoring and evaluating ankle pump movement based on a pressure sensor, characterized in that: include: A fixed pressure sensor is provided, wherein one end of a spring is connected to the pressure sensor, and the other end of the spring is worn on the patient's toe, wherein the pressure sensor is a resistance strain gauge pressure sensor; The pressure sensor obtains a first pressure value of the patient performing ankle pump exercise through spring deformation, performs temperature compensation on the output sensitivity of the pressure sensor, and calibrates the first pressure value to obtain a second pressure value; confirming an ankle pump exercise state according to the second pressure value, obtaining an exercise time corresponding to the exercise state, and determining whether the exercise state is valid according to the exercise time and the second pressure value; The temperature compensation process includes: Identifying the elastic body strain area in the pressure sensor, attaching a resistance strain gauge to the elastic body strain area, and calculating the ratio of the resistance change of the resistance strain gauge to the resistance value of the resistor; Using the resistance strain gauge to build a Wheatstone bridge, setting a compensation resistor to connect with the Wheatstone bridge to form an induction circuit, and calculating the total input resistance of the induction circuit; Obtain the excitation voltage and output voltage of the sensing circuit, and calculate the output sensitivity based on the ratio, total input resistance, excitation voltage and output voltage ; The calibration process of the first pressure value specifically includes: Get the output sensitivity at the calibration temperature and output sensitivity at room temperature , let the temperature variation of the output sensitivity be , ; Get the full-scale output of the pressure sensor , calibration temperature and room temperature , and according to the temperature change , output expected sensitivity coefficient , ; At the calibration temperature Get the rated range output sensitivity and zero output value , and according to the expected sensitivity coefficient , using the calibration formula Calibrate the first pressure value to obtain the second pressure value ; The process of determining whether the motion state is valid includes: When the second pressure value is a positive value, it is confirmed that the current movement state is plantar flexion movement; Obtaining the movement time of the plantar flexion movement, and determining whether the second pressure value is greater than a set pressure threshold and whether the movement time exceeds a set time threshold; If so, the plantar flexion movement is a valid movement; The process of determining whether the motion state is invalid includes: It is determined whether the second pressure value is less than a set pressure threshold or whether the movement time is less than a set time threshold; if so, the plantar flexion movement is an invalid movement.

2. The ankle pump movement monitoring and evaluation method based on a pressure sensor according to claim 1, characterized in that: The calculation process of the ratio specifically includes: Obtaining the width and thickness of the elastic body strain zone, and calculating the bending section coefficient of the elastic body strain zone; Obtaining the bonding distance between the two sets of resistance strain gauges and the load on the elastic body strain zone, and calculating the bending moment on the cross section of the elastic body strain zone; Obtaining the elastic modulus of the elastomeric material and determining the strain region of the elastomeric body based on the bending moment and the bending section coefficient of the cross section; The sensitivity coefficient of the resistance strain gauge is obtained, and the ratio is calculated according to the strain area of ​​the elastic body.

3. The ankle pump movement monitoring and evaluation method based on a pressure sensor according to claim 1, characterized in that: The process of determining whether the motion state is valid specifically includes: When the second pressure value is a negative value, it is confirmed that the current exercise state is a back extension exercise; Obtaining the movement time of the back extension movement, and determining whether the absolute value of the second pressure value is greater than a set pressure threshold and whether the movement time exceeds a set time threshold; If so, the back extension exercise is an effective exercise.

4. The ankle pump movement monitoring and evaluation method based on a pressure sensor according to claim 3, characterized in that: The process of determining whether the motion state is invalid specifically includes: Determining whether the absolute value of the second pressure value is less than a set pressure threshold or whether the exercise time is less than a set time threshold; If so, the back extension exercise is an ineffective exercise.

5. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: The processor executes the computer program to implement the ankle pump movement monitoring and evaluation method based on a pressure sensor as described in any one of claims 1 to 4.

6. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, a pressure sensor-based ankle pump movement monitoring and evaluation method according to any one of claims 1 to 4 is implemented.

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