CN114794625A - Manufacturing method of intelligent waistband based on loofah sponge sensor - Google Patents
Manufacturing method of intelligent waistband based on loofah sponge sensor Download PDFInfo
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- CN114794625A CN114794625A CN202210391279.5A CN202210391279A CN114794625A CN 114794625 A CN114794625 A CN 114794625A CN 202210391279 A CN202210391279 A CN 202210391279A CN 114794625 A CN114794625 A CN 114794625A
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- 244000280244 Luffa acutangula Species 0.000 title claims abstract description 101
- 235000009814 Luffa aegyptiaca Nutrition 0.000 title claims abstract description 101
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000002042 Silver nanowire Substances 0.000 claims abstract description 18
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 17
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims abstract description 17
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims abstract description 17
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 6
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- 239000004332 silver Substances 0.000 claims description 32
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 18
- 239000003575 carbonaceous material Substances 0.000 claims description 14
- 239000002028 Biomass Substances 0.000 claims description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 241000219122 Cucurbita Species 0.000 claims description 7
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 7
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 6
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
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- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
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- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 210000001015 abdomen Anatomy 0.000 description 5
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41F—GARMENT FASTENINGS; SUSPENDERS
- A41F9/00—Belts, girdles, or waistbands for trousers or skirts
- A41F9/002—Free belts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1118—Determining activity level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
- G01N27/3277—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction being a redox reaction, e.g. detection by cyclic voltammetry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
- G01N27/3278—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction involving nanosized elements, e.g. nanogaps or nanoparticles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
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Abstract
The invention discloses a manufacturing method of an intelligent waistband based on a loofah sponge-based sensor, which comprises the steps of drying loofah sponge, carbonizing, compounding the loofah sponge with silver nanowires, and constructing a flexible sensor by using PDMS; the sensor in a required shape is obtained by cutting, the sensor is attached to the surface, in contact with a human body, of the waistband to collect waist circumference change signals, the signals are transmitted to the processing end and are compared with a set change threshold, when the measured waist circumference of a wearer exceeds the set threshold, the aim of monitoring and controlling the appetite of the wearer through reminding or warning the wearer is achieved.
Description
Technical Field
The invention relates to the field of sensors, in particular to a manufacturing method of an intelligent waistband based on a loofah sponge sensor.
Background
Thanks to the mature development of the micro electronic chip technology and the proposal of the internet intelligent concept, the volumes of a plurality of electronic devices and sensors are greatly reduced at present, people can apply the electronic devices and the sensors to various daily wearing articles to monitor the physiological data of users and effectively provide various convenient services for the users, so that the intelligent wearing equipment forms a hot tide. The traditional waistband usually only provides the use of constraint clothing and decoration, and its function is comparatively single, simultaneously, along with the improvement of people's standard of living, people also are higher and higher to the demand of health, and body-building moulding has more and more been accepted by people's masses. As is known, the concept of keeping the abdomen in a state of being flat and beautiful is that the simplest and most effective action is to keep the abdomen in a state of being drawn back anytime and anywhere, and many people want to achieve the purpose of body building and shaping by drawing back the abdomen anytime and anywhere, but some people cannot keep the abdomen, because the body can feel unconscious relaxation; people urgently need an intelligent waistband which can constantly monitor whether the user keeps contracting the abdomen.
At present, samsung has already provided an intelligent waistband for analyzing data such as waistline, eating habits, physical exercises and the like of a user, but the intelligent waistband is not popularized in a large range in the market. The three stars intelligent belt is named as 'WELT', meaning 'health belt', and is also called as 'intelligent wearable health belt' by the company. "melt" is very much like a normal belt, and its built-in sensor can be used with a user's smart phone to tell the user some useful information, such as how long you have been sitting and how many steps you have walked today. In addition, the intelligent belt can send diet and exercise data related to the user to the mobile phone application software of the user in real time. By analyzing these data, the user can know himself, such as whether you have eaten too much, and what your current waist is. The wearable product is developed by a samsung innovation laboratory and is a prototype product at present. It is being developed, but it is not disclosed whether or when it is sold, and its specific retail price.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a manufacturing method of an intelligent waistband based on a loofah sponge-based sensor, wherein expensive graphene materials are replaced by common loofahs on the market, and the loofah sponge-based sensor has dense and parallel micropores, is larger in contact area and more sensitive to slight change of waistline compared with other sensor materials, so that the sensor can emit more accurate electric signals, and the identification result is more accurate.
Technical scheme
A manufacturing method of an intelligent waistband based on a loofah sponge based sensor comprises the following steps:
(1) pretreatment of loofah, preparation of a porous biomass carbon material: cleaning and drying loofah to obtain loofah sponge, alternately soaking the loofah sponge with deionized water and ethanol, then ultrasonically washing to remove dust and dirt impurities on the surface of the loofah sponge, then placing the loofah sponge in a drying box for drying, placing the loofah sponge in a tubular furnace after drying, and annealing in a nitrogen atmosphere at the temperature of 550-650 ℃ to obtain loofah sponge powder;
activating loofah sponge powder by using potassium hydroxide, weighing the loofah sponge powder and the potassium hydroxide powder, mixing the loofah sponge powder and the potassium hydroxide powder according to the mass ratio of 1:1-3, adding 20ml of deionized water, performing ultrasonic dispersion, and drying in a drying box until the solution is completely evaporated;
then moving the biomass carbon material into a high-temperature tubular furnace for activation, introducing argon, uniformly heating to 600-800 ℃ at a constant speed of 5 ℃/min, calcining for 1-3 h, cooling to room temperature, neutralizing with dilute hydrochloric acid, repeatedly soaking, washing and filtering with deionized water until the pH value of the filtrate is 7, detecting the filtrate by a silver nitrate solution to obtain no white precipitate, and then placing the filtrate in a vacuum drying box for drying to obtain the porous biomass carbon material;
(2) preparing the loofah sponge silver composite material: compounding the carbonized loofah sponge (OMC) and the silver nanowire in the porous biomass carbon material obtained in the step (1), adding the carbonized loofah sponge (OMC) into an isopropanol solution of 5mg/ml silver nanowire, uniformly stirring the carbonized loofah sponge (OMC) and the isopropanol solution of the silver nanowire in a mass ratio of 1:1-1:10, carrying out ultrasonic treatment for 10-30min, and standing to ensure that the silver nanowire is fully attached to the carbonized loofah sponge (OMC);
mixing PDMS and a curing agent, vacuumizing, injecting into a mold, curing, pouring carbonized loofah baking solution attached to the ultrasonically-treated silver nanowires into the mold of the cured PDMS, and drying at 60-80 ℃ for 3-6 hours to obtain a loofah sponge silver composite conductive material layer on the PDMS;
(3) the method comprises the steps of obtaining a strip-shaped loofah sponge silver composite material by cutting, connecting the loofah sponge silver composite material with a wire by using silver colloid, finally coating a layer of PDMS for packaging, namely obtaining the loofah sponge silver composite sensor, and attaching the loofah sponge silver composite sensor to the surface, in contact with a human body, of the intelligent waistband to obtain the intelligent waistband based on the loofah sponge silver composite sensor.
Further, the intelligent waistband in the step (3): when the intelligent waistband is worn on the waist, the waveform signals received by the loofah sponge base sensor are amplified to the acquisition voltage range of the single chip microcomputer through the information processing module, the single chip microcomputer is used for processing and identifying the electric signals after acquiring the signals, the single chip microcomputer acquires certain signal fluctuation data and then compares the signal fluctuation data with the waveform data recorded in the database, and when the waveform of the acquired signal data changes and exceeds a certain threshold value, the intelligent waistband can tell the wearer that the food intake amount should be reduced through a prompting or warning mode.
Further, the annealing time of the tube furnace in the step (1) is 1-1.5 hours.
Further, the annealing treatment time of the tube furnace in the step (1) is 45-60 min.
Further, the drying temperature in the vacuum drying oven in the step (1) is 60-80 ℃. Further, the loofah sponge silver composite sensor in the step (2) can be cut into any size and shape.
Further, the concentration of the carbonized towel gourd cauterizing solution attached to the silver nanowires after ultrasonic treatment in the step (2) is 2-20mg/ml, and the dosage of the towel gourd cauterizing silver composite material poured into the mold of PDMS is 5-20mg/cm 2 。
Furthermore, by comparing the recorded signal value with the recorded signal value in the database, when the recorded signal value exceeds a set change threshold value, a prompt or a warning is sent to achieve the purposes of monitoring the waist circumference of the wearer and controlling the food intake.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts common towel gourd on the market to replace expensive graphene material as a cheap conductive carbon material, the towel gourd is planted in a large amount in southern and northern China and isothermal tropical areas of Turkey and Brazil, the obtaining way is more, the price is low, the preparation is convenient, the towel gourd cauterized fiber has dense and parallel micropores, the diameter of the micropore is different from several micrometers to dozens of micrometers on a microscopic level, and a carbon material derived from LS is expected to become an ideal substrate for loading an active material in electrochemical application;
2. according to the invention, common loofah on the market is used as a template of the structured PDMS, and the loofah cauterized fiber has dense and parallel micropores, so that compared with other sensor materials, the contact area is larger, the feeling on the slight change of waistline is more sensitive, the sensor can send out more accurate electric signals, and the recognition result is more accurate;
3. the loofah sponge sensor is applied to the intelligent waistband, is a wearable sensor, is less in environmental interference, is more convenient to use, and is different from the traditional wristband in the aspect of intelligent wearable equipment.
Drawings
FIG. 1 is a scanning electron microscope image of a loofah cauterized silver composite conductive material according to an embodiment of the present invention;
FIG. 2 is a scanning electron microscope image of a loofah cauterized silver composite conductive material according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of the intelligent waistband.
Detailed Description
For a better illustration of the invention, reference is made to the following description, taken in conjunction with the accompanying drawings and examples:
as shown in fig. 1-3, the invention discloses a manufacturing method of an intelligent waistband based on a loofah sponge-based sensor, which comprises the following steps:
(1) pretreatment of loofah, preparation of a porous biomass carbon material: cleaning and drying loofah to obtain loofah sponge, alternately soaking the loofah sponge with deionized water and ethanol, then ultrasonically washing to remove dust and dirt impurities on the surface of the loofah sponge, then placing the loofah sponge in a drying box for drying, placing the loofah sponge in a tubular furnace after drying, and annealing for 1h at the temperature of 600 ℃ in a nitrogen atmosphere to obtain loofah sponge powder;
activating loofah sponge powder by using potassium hydroxide, weighing the loofah sponge powder and the potassium hydroxide powder, mixing the loofah sponge powder and the potassium hydroxide powder according to the mass ratio of 1:1, adding 20ml of deionized water, performing ultrasonic dispersion, and drying in a drying box at 60 ℃ until the solution is completely evaporated;
then moving the biomass carbon material into a high-temperature tubular furnace for activation, introducing argon, uniformly heating to 700 ℃ at a constant speed of 5 ℃/min, calcining for 1h, cooling to room temperature, neutralizing with dilute hydrochloric acid, repeatedly soaking, washing and filtering with deionized water until the pH value of the filtrate is 7, detecting the filtrate by a silver nitrate solution to obtain no white precipitate, and then placing the filtrate into a vacuum drying oven for drying at the drying temperature of 60 ℃ to obtain the porous biomass carbon material;
(2) preparing the loofah sponge silver composite material: compounding the porous biomass carbon material in the step (1), namely carbonized loofah sponge (OMC) and silver nanowires, adding the carbonized loofah sponge (OMC) into an isopropanol solution of 5mg/ml of silver nanowires, uniformly stirring, wherein the mass ratio of the carbonized loofah sponge (OMC) to the isopropanol solution of the silver nanowires is 1:5, performing ultrasonic treatment for 30min, and standing to fully attach the silver nanowires to the carbonized loofah sponge (OMC);
mixing PDMS and a curing agent in a rectangular mould of 1 x 2cm, vacuumizing, injecting into the mould, curing, preparing 5mg/ml carbonized loofah cauterization solution attached to the silver nanowires after ultrasonic treatment, pouring 5ml loofah cauterization solution into the mould of the cured PDMS, drying at 80 ℃ for 6 hours to obtain a loofah sponge silver composite conductive material layer on the PDMS, wherein a scanning electron microscope of the loofah sponge silver composite conductive material layer is shown in figures 1 and 2, so that the porous structure of the loofah cauterization can be clearly seen, and the Ag nanowires are wound between the loofah sponge silver composite conductive material layer and the PDMS;
(3) the method comprises the steps of obtaining a strip-shaped loofah sponge silver composite material by cutting, connecting the loofah sponge silver composite material with a wire by using silver gel, finally coating a layer of PDMS for packaging to obtain the loofah sponge silver composite sensor, and attaching the loofah sponge silver composite sensor to the surface, in contact with a human body, of the intelligent waistband to obtain the intelligent waistband based on the loofah sponge silver composite sensor, wherein the schematic diagram is shown in fig. 3.
Further, the intelligent waistband in the step (3): when the intelligent waistband is worn on the waist, the waveform signals received by the loofah sponge base sensor are amplified to the acquisition voltage range of the single chip microcomputer through the information processing module, the single chip microcomputer is used for processing and identifying the electric signals after acquiring the signals, the single chip microcomputer acquires certain signal fluctuation data and then compares the signal fluctuation data with the waveform data recorded in the database, and when the waveform of the acquired signal data changes and exceeds a certain threshold value, the intelligent waistband can tell the wearer that the food intake amount should be reduced through a prompting or warning mode.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A manufacturing method of an intelligent waistband based on a loofah sponge based sensor is characterized by comprising the following steps:
(1) pretreatment of loofah, preparation of a porous biomass carbon material: cleaning and drying loofah to obtain loofah sponge, alternately soaking the loofah sponge with deionized water and ethanol, then ultrasonically washing to remove dust and dirt impurities on the surface of the loofah sponge, then placing the loofah sponge in a drying box for drying, placing the loofah sponge in a tubular furnace after drying, and annealing in a nitrogen atmosphere at the temperature of 550-650 ℃ to obtain loofah sponge powder;
activating loofah sponge powder by using potassium hydroxide, weighing the loofah sponge powder and the potassium hydroxide powder, mixing the loofah sponge powder and the potassium hydroxide powder according to the mass ratio of 1:1-3, adding 20ml of deionized water, performing ultrasonic dispersion, and drying in a drying box until the solution is completely evaporated;
then moving the biomass carbon material into a high-temperature tubular furnace for activation, introducing argon, uniformly heating to 600-800 ℃ at a constant speed of 5 ℃/min, calcining for 1-3 h, cooling to room temperature, neutralizing with dilute hydrochloric acid, repeatedly soaking, washing and filtering with deionized water until the pH value of the filtrate is 7, detecting the filtrate by a silver nitrate solution to obtain no white precipitate, and then placing the filtrate in a vacuum drying box for drying to obtain the porous biomass carbon material;
(2) preparing the loofah sponge silver composite material: compounding the porous biomass carbon material in the step (1), namely carbonized loofah sponge (OMC) and silver nanowires, adding the carbonized loofah sponge (OMC) into an isopropanol solution of 5mg/ml of silver nanowires, uniformly stirring, wherein the mass ratio of the carbonized loofah sponge (OMC) to the isopropanol solution of the silver nanowires is 1:1-1:10, performing ultrasonic treatment for 10-30min, and standing to fully attach the silver nanowires to the carbonized loofah sponge (OMC);
mixing PDMS and a curing agent, vacuumizing, injecting into a mold, curing, pouring carbonized loofah baking solution attached to the ultrasonically-treated silver nanowires into the mold of the cured PDMS, and drying at 60-80 ℃ for 3-6 hours to obtain a loofah sponge silver composite conductive material layer on the PDMS;
(3) the method comprises the steps of obtaining a strip-shaped loofah sponge silver composite material by cutting, connecting the loofah sponge silver composite material with a wire by using silver colloid, finally coating a layer of PDMS for packaging, namely obtaining the loofah sponge silver composite sensor, and attaching the loofah sponge silver composite sensor to the surface, in contact with a human body, of the intelligent waistband to obtain the intelligent waistband based on the loofah sponge silver composite sensor.
2. The manufacturing method of the loofah sponge based sensor-based intelligent waistband according to claim 1, wherein the intelligent waistband in step (3): when the intelligent waistband is worn on the waist, the waveform signals received by the loofah sponge base sensor are amplified to the acquisition voltage range of the single chip microcomputer through the information processing module, the single chip microcomputer is used for processing and identifying the electric signals after acquiring the signals, the single chip microcomputer acquires certain signal fluctuation data and then compares the signal fluctuation data with the waveform data recorded in the database, and when the waveform of the acquired signal data changes and exceeds a certain threshold value, the intelligent waistband can tell the wearer that the food intake amount should be reduced through a prompting or warning mode.
3. The method for manufacturing the intelligent waistband based on the loofah sponge based sensor as claimed in claim 1, wherein the annealing time of the tube furnace in the step (1) is 1-1.5 hours.
4. The method for manufacturing the intelligent waistband based on the loofah sponge based sensor, according to claim 1, wherein the annealing treatment time of the tube furnace in the step (1) is 45-60 min.
5. The method for manufacturing the intelligent waistband based on the loofah sponge based sensor according to claim 1, wherein the drying temperature in the vacuum drying oven in the step (1) is 60-80 ℃.
6. The method for manufacturing the intelligent waistband based on the loofah sponge based sensor as claimed in claim 1, wherein the loofah sponge silver composite sensor in the step (2) can be cut into any size and shape.
7. The retinervus Luffae fructus-based sensor-based intelligence of claim 1The manufacturing method of the waistband is characterized in that the concentration of carbonized towel gourd cauterized solution attached to the silver nanowires after ultrasonic treatment in the step (2) is 2-20mg/ml, and the dosage of the towel gourd cauterized silver composite material poured into a PDMS mold is 5-20mg/cm 2 。
8. The method for manufacturing an intelligent waistband based on a loofah sponge based sensor as claimed in claim 1, wherein the method comprises comparing the value with the recorded signal in the database, and sending out a prompt or warning when the value exceeds a set change threshold value, so as to monitor the waist circumference of the wearer and control the appetite of the wearer.
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