CN110432583A - A kind of step counting insole based on friction nanometer generating - Google Patents
A kind of step counting insole based on friction nanometer generating Download PDFInfo
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- CN110432583A CN110432583A CN201910784400.9A CN201910784400A CN110432583A CN 110432583 A CN110432583 A CN 110432583A CN 201910784400 A CN201910784400 A CN 201910784400A CN 110432583 A CN110432583 A CN 110432583A
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- Prior art keywords
- step counting
- insole
- friction nanometer
- aluminium foil
- nanometer generating
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Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
- A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
- G01C22/006—Pedometers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
Abstract
A kind of step counting insole based on friction nanometer generating, belongs to step counting technical field.Technical scheme steps are as follows: including: first pad, several middle pads, heelpiece, the head pad, middle pad, heelpiece centre are attached by elastic construction；The head is padded from top to bottom successively are as follows: acrylic plate, aluminium foil layer；The middle pad is from top to bottom successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate, aluminium foil layer；The heelpiece is from top to bottom successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate.Beneficial effect is: the step counting insole of the present invention based on friction nanometer generating will generate an electric current and voltage waveform by jamming on; reach the function of counting by counter; and the application power supply mode is self-driving type power supply, to environmental protection, reduces environmental pressure and plays certain effect.
Description
Technical field
The invention belongs to step counting technical field more particularly to a kind of step counting insoles based on friction nanometer generating.
Background technique
With the improvement of living standards, the requirement that people live row for food and clothing is also higher and higher, " good " is not people
For the sole criterion of higher pursuit, requirement of the people for health starts to place above the other things, and the physical condition of itself is got over
More to pay attention to.The diseases such as coronary heart disease, hypertension annoying various people in we live, but search to the bottom, numerous diseases
Feelings be people find early period not in time caused by, exactly it is difficult to result in the treatment in later period not in time for these so that
The life of oneself has been lost due to missing golden hour in many people.It as the saying goes that health is the first capital of life,
And moving is healthy best guarantee.
Body-building becomes the most hot activity of the whole people, class in the office worker of working from 9am to 5pm or colleges and universities either in office
Remaining years university student abundant living, they suffer from body-building extremely high enthusiasm.And being careful after supper also becomes people day
Often indispensable a part in life receives pursuing for many people, wechat movement as the wechat movement in wechat small routine
Ranking list also once became everybody and moved a platform of competition, but its presence plays an active part in movement for crowd,
Thus also find out the whole people for the attention of movement.People pass through the data such as statistics step number, distance, time, speed using pedometer,
Meter calculates the heat of our consumption, and the fat of burning controls amount of exercise with this, using such data as measuring our fortune
The whether suitable index of momentum avoids the appearance of excessive movement and amount of exercise not foot phenomenon.
As it is well known, the principle of step counting electronics applications on the market is all to utilize acceleration transducer
Experience acceleration, signal required for being then converted to acceleration signal exports.Acceleration transducer is for acceleration
Perception be within the scope of certain, when people is during exercise since amplitude of fluctuation is too small or there are other reasons, then plus
Speed will perceive less than this signal also can not just export, and step counting result will be transported with reality movement this time
There are deviations for dynamic result.
In addition note step equipment in the prior art is wearable device mostly, it has not been convenient to or be easy to forget to carry, note is walked
It is a preferable selection that equipment, which is placed in shoes, but note in the prior art walks that equipment, especially shoes are portable to be set
It is standby, it is required to external power supply and is supplied, it can not be self-sufficient.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the present invention provides a kind of step counting based on friction nanometer generating
Insole will generate an electric current and voltage waveform by jamming on, and the function of counting, and the application are reached by counter
Power supply mode is self-driving type power supply, to environmental protection, reduces environmental pressure and plays certain effect.
Technical solution is as follows:
A kind of step counting insole based on friction nanometer generating, comprising: head pad, several middle pads, heelpiece, the first pad, in
Between pad, be attached by elastic construction among heelpiece；The head is padded from top to bottom successively are as follows: acrylic plate, aluminium foil layer；It is described
Middle pad is from top to bottom successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate, aluminium foil layer；The heelpiece is from top to bottom
Successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate.
Further, the elastic construction is spring, and 4 springs are arranged between two pads that are connected.
It further, further include power-switching circuit, sensor, single-chip microcontroller, the aluminium foil layer and power supply conversion are electric
Road connection, the power-switching circuit are connect with the sensor, single-chip microcontroller respectively, and the sensor and the single-chip microcontroller connect
It connects.
Further, the sensor is Hall current sensor.
Further, it is attached between the aluminium foil layer and acrylic plate using Kapton glue.
Further, steps are as follows for the preparation method of the dimethyl silicone polymer layer:
S1, electronic scale weigh the dimethyl silicone polymer and coagulator that proportion is 10:1, are stirred；
S2, prepare clean culture dish, carry out silver mirror reaction using disk；
S3, it the culture dish for smearing the disk of solution will be filled is put into baking oven, adjusting oven temperature is 50 degree of constant temperature, is put
Four hours are set, culture dish is taken out, obtain dimethyl silicone polymer layer.
Further, the power-switching circuit includes rectification module and filter module, the rectification module and the filter
The connection of wave module；The rectification module is MB6S, the diode docked two-by-two including four；The filter module includes that operation is put
Big device and RC element, the operational amplifier are LM318.
The beneficial effects of the present invention are:
Step counting insole of the present invention based on friction nanometer generating will generate an electric current and voltage by jamming on
Waveform reaches the function of counting by counter, and the application power supply mode is self-driving type power supply, to environmental protection, drop
Ambient pressure plays certain effect.
Detailed description of the invention
Fig. 1 is the nanometer generating structural schematic diagram that rubs the present invention is based on three layers of perpendicular contact separate type；
Fig. 2 is present example structure chart；
Fig. 3 is the circuit diagram of perpendicular contact-clastotype friction nanometer power generator the present invention is based on three layers；
Fig. 4 is PDMS preparation process figure of the present invention；
Fig. 5 is the processing circuit schematic diagram of friction nanometer power generator of the present invention；
Fig. 6 is step counting insole theory structure schematic diagram of the present invention；
Fig. 7 is the voltage pattern that the present invention generates under different structure；
Fig. 8 is the current graph that the present invention generates under different structure；
Fig. 9 is Hall sensor detection principle diagram of the present invention.
Specific embodiment
1-9 is described further the step counting insole based on friction nanometer generating with reference to the accompanying drawing.
The application is used for footwear, is placed in sole, realizes the conversion from kinetic energy to electric energy by human motion, is received based on friction
The step function of meter Fa electricity realization step counting insole.
One, based on the design of three layers of perpendicular contact separate type friction nanometer power generator structure
In the process of walking, shoes will receive the pressure from entire body to people, and this pressure then can in course of a step
It disappears, moves in circles, so in this application, being placed on the friction nanometer power generator in insole using perpendicular contact-splitting die
Formula.It is as shown in Figure 1 based on three layers of perpendicular contacts-separate type friction nanometer power generator structural schematic diagram.Whole knot in schematic diagram
One layer of structure ragged edge is acrylic board, because acrylic board have the characteristics that it is crisp, hard, insulate, select it can be with as outermost layer
It plays a protective role to internal material, and acrylic board will not deformation occurs during pressing, trampling.Second layer material is aluminium
Foil.It is well known that metal material is best conductive material, and good conductivity and cheap aluminium is counted in metal material
Foil, and aluminium foil quality is lighter, thinner thickness, quality is soft, it can be made to be combined well with acrylic board using Kapton glue, institute
To select aluminium foil as electrode material.Third layer material is dimethyl silicone polymer (PDMS), and PDMS is intended to electronegativity, more holds
Be easy to get electronics.When giving a pressure above, on PDMS and second piece of acrylic board on first piece of acrylic board
Electrode material (aluminium foil) contact that collides generate friction, successive the 4th piece of acrylic board of drive third block touch,
After the disappearance of this power, due to the elasticity of Kapton glue, it can tend to return to original position, will make each acrylic board
Between generate certain displacement, because of triboelectrification effect, electric charge transfer has occurred in two kinds of material surfaces, forms electricity
Stream.
Structure in Fig. 1 is equivalent to the series connection of three friction nanometer power generators, can be measured by this structure higher
Current value.After repeatedly testing, discovery uses PDMS as friction layer material, the generation current of a friction nanometer power generator
Up to 4.3 μ A, power generation performance is good, and three friction nanometer power generators are connected, and the electric current measured is up to 10 μ A, this series connection
S type skeleton structure power generation performance is more superior.
Example is made that according to Fig. 1 schematic diagram, comprehensively considers many factors, and S type skeleton is replaced with spring.The bullet of spring
Property can play good supporting role between two pieces of acrylic boards, make to have between electrode material and PDMS between certain air
Gap, as long as and spring the effect of power is no longer influenced by after deformation occurs, initial conditions will soon be restored to, this of spring is
Column movement has perfectly simulated people in the state in advancing of walking.Example block diagram is as shown in Figure 2.When to first piece of acrylic plate
When applying pressure vertically downward, deformation occurs for spring, and acrylic board moves down, the electrode material being attached on acrylic board
It collides contact with friction layer material, because of the coupling of contact electrification and electrostatic induction, two kinds of material surfaces will be sent out
Raw electric charge transfer, but since two kinds of opposite charges of electrical property are in same plane, so potential difference is not present between two electrodes.
After this power is cancelled, spring deformation restores, and entire friction nanometer power generator structure is returned to original position.Such case
Under, two kinds of surfaces with opposite-sign charge separate, and form potential difference between two electrodes, generate electricity with charge is mobile
Stream.
Circuit diagram based on three layers of perpendicular contact-clastotype friction nanometer power generator is as shown in Figure 3.Series connection
For S type skeleton, the increase of PDMS Yu electrode material contacts effective area can be realized without the entire area for increasing device.Make
Three units are linked together with electrode material of aluminum foil, a circuit is formed, increases the power generation of friction nanometer power generator
Energy.
In entire friction nanometer power generator, different friction layer materials can generate electric current not of uniform size, so friction
The selection of layer material with prepare it is particularly critical.
The preparation of friction layer material PDMS including the following steps:
The first step is the PDMS and coagulator that electronic scale weighs that proportion is 10:1, is stirred about 10 minutes.
Second step is to prepare clean culture dish, selects sizeable disk, carries out silver mirror reaction.
Third step is that the culture dish for filling the disk for smearing solution is put into baking oven, and adjusting oven temperature is constant temperature 50
Degree, places four hours, culture dish is taken out, can obtain the frictional layer as fruit juice gel.
Preparation process figure is as shown in Figure 4.
Two, the processing collecting circuit of friction nanometer power generator
By continuously pressing acrylic board to one pressure of entire friction nanometer power generator, turn because charge occurs for triboelectrification
Move and generate electric current, and the electric current generated is untreated is not available, thus need using circuit to the electric current of generation into
The processing of row rectifying and wave-filtering, obtains ideal current signal.The processing circuit of friction nanometer power generator is as shown in Figure 5.
Part in dotted line frame 1 is filter circuit, and the part in dotted line frame 2 is rectification circuit.Current signal enters, and first passes through
Cross full bridge rectifier, rectifying part by four back to diode form, they can be the AC signal of acquisition by whole
Stream becomes direct current signal.As shown in figure 5, that rectifier bridge selection is MB6S, and the diode docked two-by-two including four, the electricity of input
When stream signal is positive half-wave, two diodes will be connected, and export positive half；When the current signal of input is negative half-wave,
Other two diodes will be connected, but because be reversal connection, output signal or positive half.By the above process it
Afterwards, the rectification processing to current signal is just completed.
Treated, and current signal will also be by filtering.Operational amplifier used in this circuit is LM318, operation amplifier
Device and RC element constitute filter.People walk frequency be generally 1.2 seconds/step (1.8Hz), in filter circuit, according to formula:
It is 10 μ F that R can be calculated, which is 100k, C,.Wherein, f is cutoff frequency, and R is resistance, and C is capacitor.In rectifying and wave-filtering
Later, it by obtained power storage in capacitor, powers for subsequent applications device.Because electricity will be generated by jamming on generation friction
Stream, logical whole device realize the circulation marketed one's own products.The energy wasted before us is converted, friction generates
Electric energy obtained utilizing well.
Three, pedometer operating circuit
In this application, the working principle of pedometer is different from traditional electronic pedometer working principle, friction nanometer hair
Mechanical energy during walking effectively can be converted to electric energy by motor, often be made a move, and carry out one to friction nanometer power generator
It is secondary to jam on, a current signal can be generated during jamming on, self-charging system can power for wireless transmitter, and pass through note
Number device records step number.Pedometer circuit portions structure is as shown in Figure 6.
Hall current sensor can be used to acquire current signal information, then send collected data by AD conversion
To single-chip microcontroller, data processing is carried out inside single-chip microcontroller；In the entire system, all work is controlled by single-chip microcontroller, is utilized
STM32 chip and Bluetooth of mobile phone, which are realized, to be wirelessly transferred, and the step count information detected from data is sent to mobile phone and carries out number
Display.Pedometer power is 0.13 watt, and current signal at different frequencies is up to 9 μ A, the Current Voltage under different structure
Figure is respectively as shown in Fig. 7 voltage pattern, Fig. 8 current graph.
In entire circuit, Hall current sensor plays the role of the acquisition of current signal vital.Suddenly
Your sensor testing principle is as shown in Figure 9.
The control of following English names and its Chinese name for listing abbreviation used in embodiment.
PDMS: English name: polydimethylsiloxane
Chinese name: dimethyl silicone polymer
The application to step counting product on the market there are the problem of improved, mainly for three point problem be unfolded.
Principle innovation is first innovative point of the application, as it is well known, step counting electronic product on the market
The principle of application is all to experience acceleration using acceleration transducer, signal required for being then converted to acceleration signal into
Row output.As mentioned above such, acceleration transducer is to work as people within the scope of certain for the perception of acceleration
During exercise since amplitude of fluctuation is too small or there are other reasons, then acceleration will perceive not movement this time
Arrive, this signal also can not just export, step counting result will and real motion result there are deviations.
The friction nanometer power generator above told about is applied in insole, this friction nanometer note step insole and market
Present on note step shoes principle it is different, in comparison, its advantages more protrude from the accuracy of step counting.Pass through a series of survey
As long as the phenomenon that available pressure certain to acrylic board will generate apparent electric current protrusion peak is tried, in the application
In, nano friction power generation note step shoes application is exactly the principle for jamming on power generation count-Current protrusion peak.It is prepared in will be above-mentioned
Nano friction generator be placed in sole, when people's movement or it is normal walk when, as long as jamming on shoes, it is real that our will be generated
Current spike protrusion in testing calculates each pulse with counter, then stores obtained umber of pulse, in a timing
After interior end movement, so that it may export the numerical result within defined this period.
This note step insole based on friction nanometer power generator improves the original of acceleration transducer using the principle jammed on
Reason, this mode solve counting inaccuracy, a little bigger problem of application condition.
For the carrying problem that second point is mentioned, also it is resolved.The product that we see is either with mobile phone for matchmaker
Bracelet foot ring of the band on hand or on ankle might as well still be said by being situated between, and forget to carry the problem of being the largest.And it is received what we prepared
The problem of rice friction generator is used in shoes, and shoes are made necessity for people's lives, forgotten to carry just has obtained solving well
Certainly.
Frivolous friction material and conductive material are placed into sole, there is no because of friction material and conductive material placement
Caused by comfort level the problem of.And the selection sexual valence of electrode material and friction material is relatively high, similar to the life that shoes are this
Necessity living, will not be excessive because of more this function of step counting influence manufacturing cost.
Compared with other step counting products, the supply of battery is the new big feature of the application.It rubs because jamming on
Electric current will be generated, is collected the electric current of generation by collection device, is powered for entire signal output apparatus, whole device
Realize the circulation marketed one's own products.The energy wasted before us is converted, the electric energy for the generation that rubs obtains
It utilizes well.It is big to solve other products consumption electricity, the problem of easy electricity shortage.And collection of energy is used for itself, it is complete
Play the role of clean and environmental protection entirely.The a large amount of consumption for not generating battery, reduce the pressure of environmental protection.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of step counting insole based on friction nanometer generating characterized by comprising head pad, several middle pads, heelpiece, institute
State first pad, middle pad, heelpiece centre are attached by elastic construction；The head is padded from top to bottom successively are as follows: acrylic plate, aluminium
Layers of foil；The middle pad is from top to bottom successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate, aluminium foil layer；The bottom
It pads from top to bottom successively are as follows: dimethyl silicone polymer layer, aluminium foil layer, acrylic plate.
2. the step counting insole as described in claim 1 based on friction nanometer generating, which is characterized in that the elastic construction is bullet
Spring is connected two between padding and 4 springs is arranged.
3. the step counting insole as claimed in claim 1 or 2 based on friction nanometer generating, which is characterized in that further include that power supply turns
Change circuit, sensor, single-chip microcontroller, the aluminium foil layer is connect with the power-switching circuit, the power-switching circuit respectively with
The sensor, single-chip microcontroller connection, the sensor are connect with the single-chip microcontroller.
4. the step counting insole as claimed in claim 3 based on friction nanometer generating, which is characterized in that the sensor is Hall
Current sensor.
5. the step counting insole as described in claim 1 based on friction nanometer generating, which is characterized in that the aluminium foil layer and pressure gram
It is attached between power plate using Kapton glue.
6. the step counting insole as described in claim 1 based on friction nanometer generating, which is characterized in that the polydimethylsiloxanes
Steps are as follows for the preparation method of alkane layer:
S1, electronic scale weigh the dimethyl silicone polymer and coagulator that proportion is 10:1, are stirred；
S2, prepare clean culture dish, carry out silver mirror reaction using disk；
S3, it the culture dish for smearing the disk of solution will be filled is put into baking oven, adjusting oven temperature is 50 degree of constant temperature, placement four
A hour, culture dish is taken out, obtains dimethyl silicone polymer layer.
7. the step counting insole as claimed in claim 3 based on friction nanometer generating, which is characterized in that the power-switching circuit
Including rectification module and filter module, the rectification module is connect with the filter module；The rectification module is MB6S, including
Four diodes docked two-by-two；The filter module includes operational amplifier and RC element, and the operational amplifier is
LM318。
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| CN201910784400.9A CN110432583A (en) | 2019-08-23 | 2019-08-23 | A kind of step counting insole based on friction nanometer generating |
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| CN111121816A (en) * | 2019-12-18 | 2020-05-08 | 江苏大学 | Multifunctional motion counting sensor based on friction nanometer generator |
| CN113258820A (en) * | 2021-05-28 | 2021-08-13 | 南京邮电大学 | System for self-powered synthesis silver nanoparticle |
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Application publication date: 20191112 |