Flexible wearable multi-mode mechanical monitoring motion patch

Abstract

The invention belongs to the field of wearable motion monitoring, and provides a flexible wearable multi-mode mechanical monitoring motion patch which is used for collecting dynamic mechanical characteristics and static mechanical response of muscles and achieving motion monitoring. The multi-mode mechanical monitoring motion patch comprises a flexible dynamic and static integrated sensor, an adhesion layer, a packaging circuit layer and a protection layer, the patch is adhered to the skin surface through the adhesion layer, and the flexible dynamic and static integrated sensor outputs a piezoelectric sensing signal and a capacitance sensing signal in real time in the motion process; the packaging circuit layer collects the piezoelectric sensing signals and the capacitance sensing signals through channels and then sends the piezoelectric sensing signals and the capacitance sensing signals to the data processing terminal, and the data processing terminal analyzes the piezoelectric sensing signals and the capacitance sensing signals to obtain dynamic mechanical characteristics and static mechanical characteristics of muscles. In conclusion, multi-mode mechanical monitoring can be carried out on the muscle compensation and muscle strain problems existing in the body building process, and the method is suitable for the fields of body building posture correction, exercise rehabilitation evaluation and electronic skin development.

Description

Technical Field

[0001] The present invention belongs to the field of wearable motion monitoring, and specifically provides a flexible wearable multi-modal mechanical monitoring motion patch, which is applicable to the fields of fitness posture correction, sports rehabilitation evaluation, and electronic skin development. Background Art

[0002] At present, the mainstream wearable motion monitoring devices (such as smart watches, fitness bracelets, etc.) mainly collect basic motion data through inertial sensors (accelerometers, gyroscopes) and optical heart rate sensors, such as steps, heart rate, calorie consumption, etc.; such devices mostly rely on kinematic parameters (such as acceleration, angular velocity) or basic physiological indicators (such as heart rate, blood oxygen), although they can monitor the macroscopic motion state, there are significant limitations in the deep analysis of muscle activities, and it is impossible to synchronously capture the dynamic mechanical characteristics (such as vibration frequency, contraction intensity) and static mechanical responses (such as tissue deformation, compensatory force) of muscles; in view of this problem, the present invention provides a flexible wearable multi-modal mechanical monitoring motion patch. Summary of the Invention

[0003] The purpose of the present invention is to provide a flexible wearable multi-modal mechanical monitoring motion patch for collecting the dynamic mechanical characteristics and static mechanical responses of muscles to achieve motion monitoring.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A flexible wearable multi-modal mechanical monitoring motion patch includes: a flexible dynamic and static integrated sensor 1-1, an adhesion layer 1-2, a packaged circuit layer 1-3, and a protective layer 1-4; wherein, the flexible dynamic and static integrated sensor 1-1 is embedded in the adhesion layer 1-2 and located at the interface between the adhesion layer and the skin, the packaged circuit layer 1-3 is arranged on the back of the adhesion layer 1-2 and is electrically connected to the flexible dynamic and static integrated sensor 1-1, and the protective layer 1-4 is arranged on the back of the adhesion layer 1-2 and covers the outer surface of the packaged circuit layer 1-3; the flexible wearable multi-modal mechanical monitoring motion patch is adhered to the skin surface through the adhesion layer, and during the movement, the flexible dynamic and static integrated sensor outputs piezoelectric sensing signals and capacitive sensing signals in real time, and the piezoelectric sensing signals and capacitive sensing signals are collected by the packaged circuit layer in separate channels and sent to the data processing terminal, and the data processing terminal analyzes and obtains the dynamic mechanical characteristics and static mechanical characteristics of the muscles according to the piezoelectric sensing signals and capacitive sensing signals respectively.

[0005] Furthermore, the flexible dynamic and static integrated sensor includes: an upper surface electrode, a lower surface electrode, and a functional layer, the functional layer is arranged between the upper surface electrode and the lower surface electrode, and the functional layer is composed of an elastic piezoelectric material and conductive fillers filled therein.

[0006] Furthermore, the flexible piezoelectric material is polyvinylidene fluoride (PVDF); the conductive filler is a carbon-based material or a conductive polymer, and the carbon-based material is graphene or carbon nanotube (CNT).

[0007] Further, the encapsulation circuit layer includes: a piezoelectric signal acquisition module, a capacitance signal acquisition module, a Bluetooth transmission module, an analog-to-digital conversion module, and a switch module; wherein, the piezoelectric signal acquisition module is used to acquire the piezoelectric signal output by the flexible dynamic and static integrated sensor, and amplify and filter the piezoelectric signal. The processed piezoelectric signal is converted into a digital signal by the analog-to-digital conversion module, and then uploaded to the data processing terminal by the Bluetooth transmission module; the capacitance signal acquisition module is used to acquire the capacitance signal output by the flexible dynamic and static integrated sensor, and the capacitance signal is converted into a digital signal by the analog-to-digital conversion module and uploaded to the data processing terminal by the Bluetooth transmission module; the switch module is used to turn on or off the flexible wearable multi-modal mechanical monitoring exercise patch.

[0008] Furthermore, the flexible wearable multi-modal mechanical monitoring exercise patch further includes switch buttons 1-5, and the switch buttons 1-5 are arranged on the protective layer 1-4 and are correspondingly connected to the switch module in the encapsulation circuit layer.

[0009] Further, the flexible wearable multi-modal mechanical monitoring exercise patch is used as patch unit 1, and two patch units 1 are used in combination with an elastic band 2 and a buckle 3. The two patch units are respectively connected to the buckle through the elastic band, and the buckle realizes the disassembly and combination between the patch units.

[0010] Further, the dynamic mechanical characteristics of the muscle include vibration frequency or contraction intensity, and the static mechanical characteristics of the muscle include tissue deformation or compensatory force generation.

[0011] Based on the above technical solutions, the beneficial effects of the present invention are as follows: The present invention provides a flexible wearable multi-modal mechanical monitoring exercise patch, which conducts multi-modal mechanical monitoring for the problems of muscle compensation and muscle strain during fitness. The core includes a flexible dynamic and static integrated sensor, a biocompatible adhesion layer, an integrated packaging circuit layer, and a breathable protective layer. On the one hand, the flexible dynamic and static integrated sensor synchronously captures the dynamic mechanical signals (instantaneous vibration frequency generated by the piezoelectric effect) and static mechanical signals (capacitance change generated by tissue deformation) of the muscle, and realizes channel-separated acquisition in cooperation with the integrated packaging circuit layer. On the other hand, the modular patch design supports free combination, so as to cover most strength training actions. Through the collaborative monitoring of double patches, the muscle force timing and intensity differences are compared to identify abnormal compensation patterns, and at the same time, the degree of muscle fatigue is judged. Finally, the present invention is adapted to the monitoring requirements of multiple muscle groups such as the upper limbs (biceps brachii, trapezius) and lower limbs (quadriceps femoris, erector spinae). The mechanical signals of muscle activities are synchronously captured through the dynamic piezoelectric effect and static resistance / capacitance response, and the multi-modal mechanical data are analyzed by the supporting data processing terminal to realize the dual-modal perception of vibration frequency and tissue deformation, providing data support for subsequent dynamic optimization of exercise postures and load distribution. Description of the Drawings

[0012] Figure 1 It is a front view structural schematic diagram of the flexible wearable multi-modal mechanical monitoring exercise patch in the present invention.

[0013] Figure 2 It is a side view structural schematic diagram of the flexible wearable multi-modal mechanical monitoring exercise patch in the present invention.

[0014] Figure 3 It is a back view structural schematic diagram of the flexible wearable multi-modal mechanical monitoring exercise patch in the present invention.

[0015] Figure 4 It is a physical diagram of the flexible wearable multi-modal mechanical monitoring exercise patch in the present invention.

[0016] In the figure, 1 is a patch unit, 2 is an elastic band, 3 is a buckle, 1-1 is a flexible dynamic and static integrated sensor, 1-2 is an adhesion layer, 1-3 is a packaging circuit layer, 1-4 is a protective layer, and 1-5 is a switch button. Detailed Embodiment

[0017] To make the objectives, technical solutions and beneficial effects of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0018] As Figures 1 to 3As shown, this embodiment provides a flexible wearable multi-modal mechanical monitoring exercise patch, which is used as a patch unit 1. Two patch units 1 are used in combination with an elastic band 2 and a buckle 3. The two patch units are respectively connected to the buckle through the elastic band, and the buckle realizes the disassembly and combination between the two patch units.

[0019] The flexible wearable multi-modal mechanical monitoring exercise patch includes: a flexible dynamic and static integrated sensor 1-1, an adhesion layer 1-2, a packaged circuit layer 1-3, and a protective layer 1-4; wherein, the flexible dynamic and static integrated sensor 1-1 is embedded in the adhesion layer 1-2 and located at the interface between the adhesion layer and the skin. The packaged circuit layer 1-3 is arranged on the back of the adhesion layer 1-2 and is electrically connected to the flexible dynamic and static integrated sensor 1-1. The protective layer 1-4 is arranged on the back of the adhesion layer 1-2 and covers the outer surface of the packaged circuit layer 1-3; the flexible wearable multi-modal mechanical monitoring exercise patch is adhered to the skin surface through the adhesion layer. During the exercise process, the flexible dynamic and static integrated sensor outputs piezoelectric sensing signals and capacitance sensing signals in real time. The piezoelectric sensing signals and capacitance sensing signals are collected by the packaged circuit layer in different channels and then sent to the data processing terminal. The data processing terminal analyzes and obtains the dynamic mechanical characteristics and static mechanical characteristics of the muscle according to the piezoelectric sensing signals and capacitance sensing signals respectively.

[0020] Further, the dynamic mechanical characteristics of the muscle include vibration frequency or contraction intensity, and the static mechanical characteristics of the muscle include tissue deformation or compensatory force.

[0021] Further, the flexible dynamic and static integrated sensor includes: an upper surface electrode, a lower surface electrode, and a functional layer. The functional layer is arranged between the upper surface electrode and the lower surface electrode. The functional layer is composed of an elastic piezoelectric material and conductive fillers filled therein; the elastic piezoelectric material is a polymer material, such as polyvinylidene fluoride (PVDF); the conductive fillers are carbon-based materials or conductive polymers, and the carbon-based materials are graphene or carbon nanotubes (CNT). On the one hand, the flexible dynamic and static integrated sensor uses the piezoelectric effect to characterize the dynamic mechanical characteristics of the muscle. When a transient pressure is applied to the sensor and causes it to deform, the internal molecules of the elastic piezoelectric material are polarized, and opposite charges are generated on the upper and lower surfaces of the sensor, thereby outputting piezoelectric sensing signals; on the other hand, the flexible dynamic and static integrated sensor uses the capacitance effect to characterize the static mechanical characteristics of the muscle. The upper and lower surface electrodes of the sensor serve as the two electrode plates of an equivalent capacitor. When a static force is applied to the sensor, the distance between the two electrode plates changes, and at the same time, the internal microstructure also changes, thereby showing a change in capacitance value and outputting capacitance sensing signals.

[0022] Further, the encapsulation circuit layer includes: a piezoelectric signal acquisition module, a capacitance signal acquisition module, a Bluetooth transmission module, an analog-to-digital conversion module, and a switch module; wherein, the piezoelectric signal acquisition module is used to acquire the piezoelectric signal output by the flexible dynamic and static integrated sensor, and perform amplification and filtering processing on the piezoelectric signal. The processed piezoelectric signal is converted into a digital signal by the analog-to-digital conversion module, and then uploaded to the data processing terminal by the Bluetooth transmission module; the capacitance signal acquisition module is used to acquire the capacitance signal output by the flexible dynamic and static integrated sensor, and the capacitance signal is converted into a digital signal by the analog-to-digital conversion module and uploaded to the data processing terminal by the Bluetooth transmission module; the switch module is used to turn on or off the flexible wearable multi-modal mechanical monitoring exercise patch. Further, corresponding to the switch module, the flexible wearable multi-modal mechanical monitoring exercise patch is correspondingly provided with switch buttons 1-5, and the switch buttons 1-5 are arranged on the protective layers 1-4, as Figure 3 shown.

[0023] As Figure 4 shown is the physical diagram of the flexible wearable multi-modal mechanical monitoring exercise patch in this embodiment. Among them, the patch unit uses a circular patch with a diameter of 5 cm; the adhesion layer uses a biocompatible material such as polydimethylsiloxane (PDMS), etc., and the diameter of the adhesion layer is also 5 cm; the length of the flexible dynamic and static integrated sensor is 1.5 cm, the width is 0.8 cm, and the thickness is 0.25 mm; the protective layer uses a fabric material with good air permeability such as polyester, nylon, etc.; the elastic band uses a thermoplastic elastomer (TPE) material with good tensile properties, and the tensile range is 3 cm to 10 cm and it is not easy to deform or break after repeated use; the buckle uses a plastic material such as polypropylene (PP).

[0024] During exercise or fitness, place the patch unit at the designated position on the body. For example, when doing actions such as dumbbell curls, barbell curls, and barbell bench presses, one patch unit can be placed on the biceps or triceps, and the other patch unit can be placed on the trapezius muscle of the shoulder; when doing actions such as squats, leg presses, and deadlifts, one patch unit can be placed on the quadriceps, and the other patch unit can be placed on the erector spinae muscle of the waist. During the exercise process, the dynamic mechanical (piezoelectric) signal and static mechanical (capacitance) signal of the corresponding muscle are obtained through the flexible dynamic and static integrated sensor and the encapsulation circuit, and sent to the mobile application program end through the Bluetooth module to analyze the vibration frequency and tissue deformation of the muscle, and give the user exercise planning and health advice in real time to help the user optimize the exercise posture and load distribution.

[0025] The above are only specific embodiments of the present invention. Any feature disclosed in this specification, unless specifically described, can be replaced by other equivalent or alternative features with similar purposes; all the disclosed features, or all the steps in any method or process, except for mutually exclusive features and / or steps, can be combined in any manner.

Claims

1. A flexible wearable multi-modal mechanical monitoring exercise patch, comprising: Flexible dynamic and static integrated sensor (1-1), adhesive layer (1-2), encapsulation circuit layer (1-3) and protective layer (1-4); characterized in that the flexible dynamic and static integrated sensor is embedded in the adhesive layer and located at the interface between the adhesive layer and the skin, the encapsulation circuit layer is arranged on the back of the adhesive layer and is electrically connected to the flexible dynamic and static integrated sensor, and the protective layer is arranged on the back of the adhesive layer and covers the outer surface of the encapsulation circuit layer; the flexible wearable multi-modal mechanical monitoring exercise patch is adhered to the skin surface through the adhesive layer, and during exercise, the flexible dynamic and static integrated sensor outputs piezoelectric sensing signals and capacitive sensing signals in real time. The piezoelectric sensing signals and capacitive sensing signals are collected by the encapsulation circuit layer through separate channels and sent to the data processing terminal, and the data processing terminal analyzes and obtains the dynamic mechanical characteristics and static mechanical characteristics of the muscle according to the piezoelectric sensing signals and capacitive sensing signals respectively.

2. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 1, wherein The flexible dynamic and static integrated sensor includes: an upper surface electrode, a lower surface electrode and a functional layer. The functional layer is arranged between the upper surface electrode and the lower surface electrode, and the functional layer is composed of an elastic piezoelectric material and conductive fillers filled therein.

3. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 2, characterized in that, The elastic piezoelectric material is polyvinylidene fluoride; the conductive filler is a carbon-based material or a conductive polymer, and the carbon-based material is graphene or carbon nanotube.

4. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 1, wherein, The encapsulation circuit layer includes: a piezoelectric signal acquisition module, a capacitive signal acquisition module, a Bluetooth transmission module, an analog-to-digital conversion module and a switch module; wherein, the piezoelectric signal acquisition module is used to acquire the piezoelectric signal output by the flexible dynamic and static integrated sensor, and amplify and filter the piezoelectric signal. The processed piezoelectric signal is converted into a digital signal by the analog-to-digital conversion module, and then uploaded to the data processing terminal by the Bluetooth transmission module; the capacitive signal acquisition module is used to acquire the capacitive signal output by the flexible dynamic and static integrated sensor, and the capacitive signal is converted into a digital signal by the analog-to-digital conversion module and uploaded to the data processing terminal by the Bluetooth transmission module; the switch module is used to turn on or off the flexible wearable multi-modal mechanical monitoring exercise patch.

5. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 4, wherein The flexible wearable multi-modal mechanical monitoring exercise patch further includes a switch button (1-5). The switch button is arranged on the protective layer and is correspondingly connected to the switch module in the encapsulation circuit layer.

6. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 1, wherein, The flexible wearable multi-modal mechanical monitoring exercise patch is used as a patch unit (1), and two patch units are used in combination through an elastic band (2) and a buckle (3). The two patch units are respectively connected to the buckle through the elastic band, and the buckle realizes the disassembly and combination between the patch units.

7. The flexible wearable multi-modal mechanical monitoring exercise patch according to claim 1, characterized in that, The dynamic mechanical characteristics of the muscle include vibration frequency or contraction intensity, and the static mechanical characteristics of the muscle include tissue deformation or compensatory force generation.

Images