A multi-point sensing glove for massage assistance and its usage method

Abstract

A multi-point sensing glove for massage assistance belongs to the field of multi-channel signal acquisition and control technology. An RGB LED light array flexible circuit board is provided on the back of the glove, and the position of the RGB LED lights in the RGB LED light array corresponds to the position of the hydrogel (the hydrogel is placed on the glove at the position corresponding to the main force-bearing area of the human hand during massage operation). A three-layer structure is provided on the palm surface of the glove, which is, from the inside to the outside, an upper flexible circuit board, a flexible sensing element layer made of insulating and sealing silicone material, and a lower flexible circuit board. Hydrogels are arranged at intervals on the flexible sensing element layer. The circuit design of the upper and lower flexible circuit boards and the RGB LED light array flexible circuit board matches the palm and fingers of the human hand. When pressing the corresponding acupoint, the present invention can judge whether the intensity of the stimulation of the acupoint is appropriate based on the color emitted by the LED light at the acupoint.

Description

Technical Field

[0001] The present invention belongs to the technical field of multi-channel signal acquisition and control, in particular to the technical field of massage auxiliary force sensing data acquisition and control, and relates to a multi-point sensing glove for massage assistance and a method of use. Background Art

[0002] Acupressure, a traditional Chinese medicine method that works through the meridians, has demonstrated promising therapeutic effects for conditions such as stroke, Alzheimer's disease, and traumatic brain injury. Its low cost, ease of use, and widespread adoption have led to its growing popularity. Despite its promising application prospects, acupressure currently remains limited in terms of efficacy and accessibility. This is primarily due to two factors. Firstly, the dose-response relationship between massage technique and therapeutic efficacy is unclear, and the theoretical foundation of modern medicine is weak. This is because acupressure techniques rely primarily on physician experience and vary from person to person. Key indicators such as pressure and frequency of acupressure have not been quantified, standardized, or standardized, making it difficult to conduct systematic, reproducible experiments that would, in turn, integrate Western medical knowledge of anatomy, physiology, and pathology to uncover the biomolecular mechanisms underlying its therapeutic effects. On the other hand, massage beginners often struggle to master the appropriate pressure, making it difficult for non-professional medical personnel to perform massage therapy. Instead, they need to go to a hospital to be performed by a professional physician. If the acupoints and pressure are not properly massaged, the treatment may be ineffective at best, or even counterproductive, worsening the condition. This results in increased medical costs, poor convenience, and limited accessibility. Therefore, it is necessary to build an integrated massage sensor system to assist massage operations. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a multi-point sensing glove for massage assistance, which is easy to operate, has good use effect and good user experience; the multi-point sensing glove provided by the present invention enables the masseur to judge whether the intensity of the stimulation of the corresponding acupoint is appropriate according to the color emitted by the LED light at the acupoint when pressing the corresponding acupoint.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A multi-point sensor glove for massage assistance features miniature flexible piezoresistive sensor elements positioned on the glove corresponding to the primary force-bearing areas of the hand during massage. Two flexible printed circuit boards with conductive circuits distributed according to the sensing points are mounted on the upper and lower surfaces of the sensor elements, mounted on the palm of the glove. An RGB LED array corresponding to the sensing points is mounted on the back of the glove. The multi-point sensor glove has the same appearance as traditional gloves, but features the following improvements on the palm and back surfaces:

[0006] The back of the glove is provided with an RGB LED array flexible circuit board 1, which is composed of an RGB LED array and an RGB LED array control circuit. The positions of the RGB LEDs in the RGB LED array correspond to the positions of the flexible sensor elements in the flexible sensor element layer 3. Specifically:

[0007] The circuit design of the RGB LED array flexible circuit board connects the rows and columns of the RGB LED array pins in common, so that it can control the switching of 8 colors of 16 groups of 64 RGB LED lights through 16 pins.

[0008] The palm surface of the glove is provided with a three-layer structure, from the inside to the outside (the inside refers to the position close to the palm), which is the upper flexible circuit board 2, the flexible sensor element layer 4, and the lower flexible circuit board 5. Specifically:

[0009] The flexible sensing element layer 4 is made of insulating and sealing silicone material, and through holes for arranging hydrogels 3 are provided at intervals on the insulating and sealing silicone layer. The hydrogels 3 are miniature flexible piezoresistive sensing elements, which are arranged at positions corresponding to the main force-bearing areas of human hands during massage operations. The hydrogels 3 are placed at positions as sensing points (a total of 16 points).

[0010] The upper flexible circuit board 2 is provided with a sensing circuit with copper-plated pads distributed according to the position of the sensing point, and a wire line is drawn from each copper-plated pad to Figure 2 At the lower pin shown.

[0011] The lower flexible circuit board 5 is also provided with a sensing circuit with copper-plated pads distributed according to the position of the sensing point, and a wire line is led out from each copper-plated pad to the Figure 2 At the lower pin position shown, the circuit surface of the lower flexible circuit board 5 is opposite to that of the upper flexible circuit board 2 .

[0012] Furthermore, the hydrogel 3 is a transparent conductive hydrogel, which is a single network hydrogel formed by a polyvinyl alcohol-ammonium phosphate system, and the polyvinyl alcohol polymer chains are highly entangled under the salting-out effect of the ammonium phosphate aqueous solution.

[0013] Furthermore, the hydrogel 3 increases the amount of polyvinyl alcohol to obtain a higher density of polymer chains, while introducing a high-concentration ammonium phosphate solution to promote entanglement between polymer chains, prompting the formation of more hydrogen bonds, thereby improving the overall strength of the hydrogel. Furthermore, the highly entangled polymer chains can effectively and significantly reduce the energy dissipation generated by the hydrogel when subjected to repeated loading and unloading. It is prepared by the following method:

[0014] First, ammonium phosphate monomer is dissolved in deionized water at a temperature of 95 to 100° C. to obtain an ammonium phosphate aqueous solution with a mass concentration of 5 to 7 wt.%;

[0015] Secondly, at a temperature of 95-100°C, polyvinyl alcohol particles are dissolved in an ammonium phosphate aqueous solution to obtain a mixed solution, which is then heated and stirred continuously at this temperature for 40-60 minutes to allow the polyvinyl alcohol polymer chains to be fully physically cross-linked and highly entangled, wherein the mass concentration ratio of the polyvinyl alcohol particles in the mixed solution is 33-37wt.%.

[0016] Finally, the hydrogel obtained in the second step is taken out from the heating container, shaped using a mold, and placed in a refrigerator at -30 to -20°C for 16 to 24 hours. After freezing, the hydrogel is taken out of the refrigerator and thawed at room temperature of 15 to 30°C for 4 to 8 hours. The freeze-thaw cycle is repeated 3 to 6 times to obtain a transparent conductive hydrogel.

[0017] Furthermore, the circuit designs of the upper flexible circuit board 2, the lower flexible circuit board 5, and the RGB LED array flexible circuit board 1 are compatible with the palm and fingers of a human hand. Specifically:

[0018] On the flexible RGB LED lamp layer 1, four 2mm*2mm*1mm RGB LED lamp beads are placed at the position corresponding to each sensor element, which are used to display different colors according to the data obtained by hydrogel sensing.

[0019] The RGB LED has eight color states: off, white when all red, green, and blue are illuminated, purple when all red and blue are illuminated, cyan when all blue and green are illuminated, blue, green, orange when all red and green are illuminated, and red. Each color state corresponds to a specific range of force values. The color of the light is determined by the voltage value sensed by the micro-flexible piezoresistive sensor element (hydrogel 3) when subjected to that range of force.

[0020] like Figure 4 As shown, the sensor data from 16 miniature flexible piezoresistive sensors is collected via the analog input pins of the microcontroller. This data is then processed within the microcontroller's main control chip and, according to corresponding logic, controls the high and low levels of 16 digital output pins to control the LED lights to emit a specific color. The LED lights are lit four at a time every 10μs, and a complete cycle through all 16 groups takes 40μs. This means the refresh rate for all lights is 250kHz, far exceeding the 60Hz refresh rate of the human eye. Therefore, the human eye cannot detect the lights turning on and off. To the human eye, all lights appear to be on simultaneously and remain on.

[0021] A method for using a multi-point sensing glove for assisting massage, comprising the following steps:

[0022] When using the present invention, the user can connect each of the 16 pins of the circuit carried by the upper flexible circuit board 2 or the lower flexible circuit board 5 of the glove in series with one end of a standard resistor with a resistance value equivalent to that of the micro-flexible piezoresistive sensor element, and then connect the other end of the standard resistor to the positive electrode of a constant-voltage DC power supply.

[0023] If each of the 16 pins on the glove's upper flexible circuit board 2 is connected in series with one end of a standard resistor, the 16 pins on the glove's lower flexible circuit board 5 are connected in common and then connected to the negative terminal of the power supply. If each of the 16 pins on the glove's lower flexible circuit board 5 is connected in series with one end of a standard resistor, the 16 pins on the glove's upper flexible circuit board 2 are connected in common and then connected to the negative terminal of the power supply.

[0024] There are 16 connecting lines between the 16 pins of the circuit carried by the upper flexible circuit board 2 of the glove and the 16 standard resistors. One line is drawn out in parallel from each of the 16 connecting lines and connected to the 16 analog input pins of the microcontroller chip respectively.

[0025] A flexible sensing element is placed in each of the 16 holes reserved in the insulating sealing silicone layer 4 of the glove.

[0026] The 16 pins of the glove's RGB LED light array flexible circuit board are connected to the digital output pins of a chip that can control the high and low levels of the pins.

[0027] The beneficial effects of the present invention are as follows: the glove can successfully sense the force of various parts of the palm through the hydrogel, and convert it into voltage data to control the LED lights at the corresponding positions to emit light of different colors, so that the operator can easily identify the force applied to various parts of the palm during massage, thereby providing the operator with intuitive and reliable massage prompts, preventing the operator from using too much force to damage the body or using too little force to achieve the massage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 (a) is a side view of the layered concept of a multi-point sensing glove for massage assistance provided by an embodiment of the present invention; Figure 1 (b) is a conceptual side-up view of the multi-point sensing glove for massage assistance provided by an embodiment of the present invention.

[0029] Figure 2 This is a circuit diagram of a flexible circuit board with sensing points of a multi-point sensing glove for massage assistance provided by an embodiment of the present invention.

[0030] Figure 3This is a circuit diagram of an RGB LED light array flexible circuit board for a multi-point sensing glove for massage assistance provided by an embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the connection relationship between the sensing circuits of the multi-point sensing gloves for massage assistance provided by an embodiment of the present invention, the circuits of the RGB LED light array flexible circuit board, and the single-chip microcomputer.

[0032] Figure 5(a) is a stress-strain curve of the hydrogel prepared in Example 1 of the present invention when compressed to a strain of 90% at a rate of 50 mm / min; Figure 5(b) is a stress-strain curve of the hydrogel prepared in Example 1 of the present invention in Figure 5(a) when compressed at a rate of 50 mm / min with a compressive strain of 0-40%.

[0033] Figure 6 This is a stress-time curve of the hydrogel prepared in Example 1 of the present invention after being compressed to 40% strain (1 MPa) at a rate of 50 mm / min and then unloaded and reciprocated 1000 times;

[0034] Figure 7 This is a stress-strain curve of the hydrogel prepared in Example 1 of the present invention and a hydrogel with the same polyvinyl alcohol concentration but without the introduction of ammonium phosphate solution, compressed at a rate of 50 mm / min to 40% strain and then unloaded, and repeated 10 times;

[0035] Figure 8 This is a graph showing the change in relative voltage ratio of the hydrogel prepared in Example 1 of the present invention when it is compressed to a strain of 60% at a rate of 50 mm / min.

[0036] In the figure: 1 RGB LED light array flexible circuit board; 2 upper flexible circuit board; 3 hydrogel; 4 flexible sensor element layer; 5 lower flexible circuit board. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to specific embodiments.

[0038] Example 1

[0039] A multi-point sensor glove for assisting massage. The multi-point sensor glove has the same appearance as a traditional glove, but the following improvements are made to the palm and back of the traditional glove:

[0040] The back of the glove is equipped with an RGB LED array flexible circuit board 1, which consists of an RGB LED array and an RGB LED array control circuit. The positions of the RGB LEDs in the RGB LED array correspond to the positions of the flexible sensor elements in the flexible sensor layer 3. Specifically, the circuit design of the RGB LED array flexible circuit board connects the rows and columns of the RGB LED array pins in common, allowing 16 pins to control the switching of 8 colors of 16 groups of 64 RGB LEDs.

[0041] The palm surface of the glove is provided with a three-layer structure, from inside to outside (the inside refers to the position close to the palm), which are the upper flexible circuit board 2, the flexible sensor element layer 4, and the lower flexible circuit board 5. Specifically: the flexible sensor element layer 4 is made of insulating and sealing silicone material, and the insulating and sealing silicone layer is provided with through holes for arranging hydrogels 3. The hydrogels 3 are miniature flexible piezoresistive sensor elements, which are arranged at positions corresponding to the main force-bearing areas of the human hand during massage operations. The hydrogels 3 are placed at positions corresponding to the main force-bearing areas of the human hand during massage operations. The positions where the hydrogels 3 are placed are sensing points (a total of 16 are arranged). The upper flexible circuit board 2 is provided with a sensing circuit with copper-plated pads distributed according to the positions of the sensing points, and a wire line is led out from each copper-plated pad and aggregated to Figure 2 The lower flexible circuit board 5 is also provided with a sensing circuit with copper-plated pads distributed according to the position of the sensing point, and a wire line is led out from each copper-plated pad to Figure 2 At the lower pin position shown, the circuit surface of the lower flexible circuit board 5 is opposite to that of the upper flexible circuit board 2 .

[0042] Hydrogel 3 is a transparent conductive hydrogel, a single-network hydrogel formed from a polyvinyl alcohol (PVA)-ammonium phosphate system. The polyvinyl alcohol polymer chains become highly entangled due to the salting-out effect of an ammonium phosphate aqueous solution. Hydrogel 3 achieves a higher density of polymer chains by increasing the amount of PVA. The addition of a high-concentration ammonium phosphate solution promotes entanglement between polymer chains, fostering the formation of more hydrogen bonds and enhancing the overall strength of the hydrogel. Furthermore, the highly entangled polymer chains significantly reduce the energy dissipation of the hydrogel during repeated loading and unloading.

[0043] The user can connect each of the 16 pins of the circuit carried by the upper flexible circuit board 2 of the glove in series with one end of a standard resistor with a resistance of 100Ω, and then connect the other end of the standard resistor to the positive electrode of the constant voltage DC power supply.

[0044] The 16 pins of the circuit carried by the lower flexible circuit board 5 of the glove are connected to the negative pole of the power supply after being connected to the common pole.

[0045] There are 16 connecting lines between the 16 pins of the circuit carried by the upper flexible circuit board 2 of the glove and the 16 standard resistors. One line is drawn out in parallel from each of the 16 connecting lines and connected to the 16 analog input pins of the microcontroller chip respectively.

[0046] A flexible conductive hydrogel block 3 with a diameter of 5 mm and a height of 1 mm is placed in each of the 16 holes reserved in the insulating sealing silicone layer 4 of the glove.

[0047] The 16 pins of the glove's RGB LED light array flexible circuit board are connected to the 16 digital output pins of the microcontroller chip respectively.

[0048] like Figure 4 As shown, the sensor data from 16 miniature flexible piezoresistive sensors is collected via the analog input pins of the microcontroller. This data is then processed within the microcontroller's main control chip and, according to corresponding logic, controls the high and low levels of 16 digital output pins to control the LED lights to emit a specific color. The LED lights are lit four at a time every 10μs, and a complete cycle through all 16 groups takes 40μs. This means the refresh rate for all lights is 250kHz, far exceeding the 60Hz refresh rate of the human eye. Therefore, the human eye cannot detect the lights turning on and off. To the human eye, all lights appear to be on simultaneously and remain on.

[0049] In an embodiment of the present invention, the preparation method of the transparent conductive hydrogel is as follows:

[0050] Example 1

[0051] A method for preparing a transparent conductive hydrogel with high compressive strength and low energy dissipation is as follows:

[0052] In the first step, 5 g of ammonium phosphate powder was weighed and added into 60 mL of deionized water, and stirred with magnetic force at 95° C. for 10 minutes until the powder was completely dissolved to obtain an ammonium phosphate aqueous solution with a mass concentration ratio of 7.7 wt.%.

[0053] In the second step, 33 g of polyvinyl alcohol particles were weighed and added to the above solution and stirred to obtain a mixed solution. The mixed solution was heated and stirred at 95°C for 40 minutes to obtain a hydrogel precursor. The mass concentration of the polyvinyl alcohol particles in the mixed solution was 33.7 wt.%.

[0054] In the third step, the hydrogel precursor obtained in the second step was removed and fixed in a standard sample mold. Wrapped in plastic wrap to prevent water loss, the product was frozen in a -30°C refrigerator for 16 hours, removed, and thawed at room temperature for four hours. This freeze-thaw cycle was repeated three times to obtain the hydrogel.

[0055] Example 2

[0056] In the first step, 5 g of ammonium phosphate powder was weighed and added into 60 mL of deionized water, and stirred with magnetic force at 98° C. for 10 minutes until the powder was completely dissolved to obtain an ammonium phosphate aqueous solution with a mass concentration ratio of 7.7 wt.%.

[0057] In the second step, 35 g of polyvinyl alcohol particles were weighed and added to the above solution and stirred to obtain a mixed solution. The mixed solution was further heated and stirred at 98°C for 45 minutes to obtain a hydrogel precursor. The mass concentration of the polyvinyl alcohol particles in the mixed solution was 35 wt.%.

[0058] In the third step, the hydrogel precursor obtained in the second step was removed and fixed in a standard sample mold. Wrapped in plastic wrap to prevent water loss, the product was frozen in a -20°C refrigerator for 16 hours, removed, and thawed at room temperature for 5 hours. This freeze-thaw cycle was repeated three times to obtain the hydrogel.

[0059] Example 3

[0060] In the first step, 7 g of ammonium phosphate powder was weighed and added into 60 mL of deionized water, and magnetic stirring was used at 100° C. for 10 minutes until the powder was completely dissolved to obtain an ammonium phosphate aqueous solution with a mass concentration ratio of 10.4 wt.%.

[0061] In the second step, 37 g of polyvinyl alcohol particles were weighed and added to the above solution, stirring uniformly to obtain a mixed solution. The mixed solution was further heated and stirred at 100°C for 60 minutes to obtain a hydrogel precursor. The mass concentration of the polyvinyl alcohol particles in the mixed solution was 35.6 wt.%.

[0062] In the third step, the hydrogel precursor obtained in the second step was removed and fixed in a standard sample mold. Wrapped in plastic wrap to prevent water loss, the product was frozen in a -20°C refrigerator for 24 hours, removed, and thawed at room temperature for 8 hours. This freeze-thaw cycle was repeated three times to obtain the hydrogel.

[0063] Characterization data analysis:

[0064] In the compression mechanical property test conducted on the examples, the hydrogel prepared in the examples was made into a cylindrical specimen with a radius of 5 mm and a height of 6 mm, and compressed to a strain of 90% at a compression rate of 50 mm / min. The strain can be calculated directly from the displacement data obtained by the tester, and the stress value is calculated based on the volume invariance principle to calculate the real-time cross-sectional area, and the real-time stress is obtained by dividing it by the pressure at this moment. The compressive stress of the hydrogel prepared in Example 2 can reach 100 MPa when compressed to 90% strain, while the hydrogels prepared in Examples 1 and 3 can reach 80 MPa and 92 MPa respectively. In the compression fatigue test conducted on the examples, the hydrogel prepared in the examples was compressed to a strain of 40% at a compression rate of 50 mm / min and then returned to the initial state at the same rate for testing. The compressive stress of the hydrogel prepared in Example 2 can reach 1 MPa when compressed to a strain of 40%, which is sufficient to withstand the force generated by normal pressure from a human hand.

[0065] The hydrogel prepared in Example 2 was subjected to 1000 cycles of reciprocating compression to a strain of 40% (1 MPa). No significant stress decay was observed, demonstrating that the hydrogel can operate continuously for extended periods under this stress environment. The hydrogel prepared in Example 2 showed virtually no stress decay after 500 and 1000 cycles of reciprocating compression. Furthermore, the stress-strain curves during these multiple compression cycles were very similar, indicating that the stress states of the hydrogel remained similar during the repeated reciprocating loading cycles, which contributes to the stable output of the hydrogel's electrical signals.

[0066] Comparing the mechanical property curves of the hydrogel prepared in Example 2 after being compressed to a strain of 40% and then unloaded 10 times, it can be seen that the energy dissipation rate of the hydrogel prepared in Example 2 is 15.67%. This is mainly because the polymer chains inside the hydrogel prepared in Example 2 are more tightly entangled and will not easily separate after being subjected to force and then unloaded. After unloading, the molecular chains are more easily pulled back to their original positions.

[0067] The electrical conductivity of the hydrogel prepared in the embodiment was tested using the resistance voltage divider method. A DC regulated power supply with an output voltage of 10V was used to connect the hydrogel in series with a 100Ω standard resistor. At the same time, in order to protect the circuit from short circuit damage, a 10Ω resistor was connected in series at the power supply end to protect the circuit. A data acquisition card was used to collect the voltage across the standard resistor. Figure 4 As shown, the conductivity of the hydrogel prepared in Example 2 is calibrated by the difference between the current voltage value and the initial voltage value relative to the initial voltage value. The hydrogel prepared in Example 2 can achieve a relative voltage change of 470% within a compressive strain of 60%, which can meet daily needs.

[0068] The above-described embodiments merely express the implementation methods of the present invention, but should not be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A multi-point sensor glove for assisting massage, the multi-point sensor glove having the same appearance as a traditional glove, characterized by: The multi-point sensing glove has an RGB LED light array flexible circuit board (1) provided on the back of the glove, which is composed of an RGB LED light array and an RGB LED light array control circuit, wherein the positions of the RGB LED lights in the RGB LED light array correspond to the positions of the flexible sensing elements in the flexible sensing element layer; specifically: The palm surface of the multi-point sensing glove is provided with a three-layer structure, which is, from the inside to the outside, an upper flexible circuit board (2), a flexible sensor element layer (4), and a lower flexible circuit board (5), wherein the inner layer refers to the position close to the palm: The flexible sensing element layer (4) is made of insulating sealing silicone material, and is provided with through holes for arranging the hydrogel (3) at intervals on the insulating sealing silicone layer. The hydrogel (3) is a micro-flexible piezoresistive sensing element, which is arranged at a position corresponding to the main force-bearing area of the human hand during massage operation, and the position where the hydrogel (3) is placed is the sensing point; The upper flexible circuit board (2) is provided with a sensing circuit having copper-plated pads distributed according to the position of the sensing points, and a conductor line is led out from each copper-plated pad and converged to the palm base pin; The lower flexible circuit board (5) is also provided with a sensing circuit with copper-plated pads distributed according to the position of the sensing points. A conductor line is drawn from each copper-plated pad and is aggregated to the palm base pin. The circuit surface of the lower flexible circuit board (5) is opposite to that of the upper flexible circuit board (2).

2. The multi-point sensing glove for assisting massage according to claim 1, characterized in that: The circuit design of the RGB LED lamp array flexible circuit board connects the rows and columns of the pins of the RGB LED array with common poles, so that it can control the switching of 8 colors of N groups of RGB LED lights through N pins.

3. The multi-point sensing glove for assisting massage according to claim 1, characterized in that: The hydrogel (3) is a transparent conductive hydrogel, which is a single network hydrogel formed by a polyvinyl alcohol-ammonium phosphate system, and the polyvinyl alcohol polymer chains are highly entangled under the salting-out effect of an ammonium phosphate aqueous solution.

4. The multi-point sensing glove for assisting massage according to claim 3, characterized in that: The hydrogel (3) is prepared by the following method: First, at a temperature of 95 to 100° C., ammonium phosphate monomer is dissolved in deionized water to obtain an ammonium phosphate aqueous solution with a mass concentration of 5 to 7 wt.%; Next, polyvinyl alcohol particles are dissolved in an aqueous ammonium phosphate solution at a temperature of 95 to 100° C. to obtain a mixed solution, which is then heated and stirred at this temperature for 40 to 60 minutes to allow the polyvinyl alcohol polymer chains to be fully physically cross-linked and highly entangled, wherein the mass concentration of the polyvinyl alcohol particles in the mixed solution is 33 to 37 wt.%. Finally, the hydrogel obtained in the second step is taken out from the heating container, shaped using a mold, and placed in a refrigerator at -30 to -20°C for 16 to 24 hours. After freezing, the hydrogel is taken out of the refrigerator and thawed at room temperature of 15 to 30°C for 4 to 8 hours. The freeze-thaw cycle is repeated 3 to 6 times to obtain a transparent conductive hydrogel.

5. The multi-point sensing glove for assisting massage according to claim 1, characterized in that: The circuit designs of the upper flexible circuit board (2), the lower flexible circuit board (5), and the RGB LED light array flexible circuit board (1) match the palm and fingers.

6. The multi-point sensing glove for assisting massage according to claim 1, characterized in that: On the flexible RGB LED lamp layer 1, four RGB LED lamp beads are placed at positions corresponding to each sensing element, which are used to display different colors according to the data obtained by hydrogel sensing.

7. A method for using the multi-point sensor gloves for massage assistance according to any one of claims 1 to 6, characterized in that: The following steps are involved: Each of the N pins of the circuit carried by the upper flexible circuit board (2) or the lower flexible circuit board (5) of the glove is connected in series with one end of a standard resistor having a resistance value equivalent to that of the micro-flexible piezoresistive sensor element, and the other end of the standard resistor is connected to the positive electrode of a constant voltage DC power supply; the sensing data of all the micro-flexible piezoresistive sensor elements are collected through the pins, processed in the single-chip main control chip, and then controlled to emit light of a specified color by the LED lamp; There are N connecting lines between the N pins of the circuit carried by the upper flexible circuit board (2) or the lower flexible circuit board (5) of the glove and the N standard resistors, and one line is led out in parallel from each of the N connecting lines and respectively connected to the N analog input pins of the single-chip microcomputer chip; the N pins of the RGB LED light array flexible circuit board of the glove are respectively connected to the digital output pins of the chip that can control the high and low levels of the pins; The RGB LED lamp beads display different colors based on the data obtained by the hydrogel sensor: the light color state of the RGB LED is divided into 8 types; each color state corresponds to a certain range of force values.

8. The method for using the multi-point sensing gloves for massage assistance according to claim 7, characterized in that: If each of the N pins of the circuit carried by the upper flexible circuit board (2) of the glove is connected in series with one end of a standard resistor, then the N pins of the circuit carried by the lower flexible circuit board (5) of the glove are connected in common and then connected to the negative pole of the power supply; if each of the N pins of the circuit carried by the lower flexible circuit board (5) of the glove is connected in series with one end of a standard resistor, then the N pins of the circuit carried by the upper flexible circuit board (2) of the glove are connected in common and then connected to the negative pole of the power supply.

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