CN108649833A - Self-powered friction nanometer power generator wireless sensing emission system with identity information - Google Patents
Self-powered friction nanometer power generator wireless sensing emission system with identity information Download PDFInfo
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- CN108649833A CN108649833A CN201810463536.5A CN201810463536A CN108649833A CN 108649833 A CN108649833 A CN 108649833A CN 201810463536 A CN201810463536 A CN 201810463536A CN 108649833 A CN108649833 A CN 108649833A
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- power generator
- friction nanometer
- nanometer power
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses the self-powered friction nanometer power generator wireless sensing emission systems with identity information.The wireless sensing and emission system of existing friction nanometer power generator need external active circuit to charge, and are not the self-powered sensing emission systems of real meaning.The present invention includes the friction nanometer power generator with mechanical switch structure and radio frequency identification signal generates and radiating circuit；Friction nanometer power generator with mechanical switch structure generates transducing signal, is generated by radio frequency identification signal and launches included radio frequency identification information without external power supply with radiating circuit.In external parameter variation to be measured, the amplitude for the laser signal that wireless receiving arrives changes the present invention, but the resonant frequency of laser signal that wireless receiving arrives is constant, and radio frequency identification information stability not will produce erroneous judgement.
Description
Technical field
The invention belongs to friction nanometer power generator sensor technical fields, and in particular to a kind of confession with identity information
Electric friction nanometer power generator wireless sensing emission system.
Background technology
Currently, sensor network technique obtains significant progress, it is applied to all trades and professions；Sensor network or Internet of Things
The basis of net and core.Number of sensors for sensor network and Internet of Things is huge, and with control and information processing system
It is cumbersome with the connection complexity of equipment；And be these flood tide standalone sensors energy supply be a urgent problem to be solved.Traditional electricity
Pool technology is since its is of high cost, a large amount of manpowers is needed the shortcomings of maintenance, to be difficult to meet the application of flood tide sensor.It solves
One of sensor network energy supply most promising method of problem is exactly to use self energizing device or energy harvester.The nanometer that rubs hair
Motor (Triboelectric Nanogenerator, TENG), can be with as the output highest self energizing device of electric signal power
By converting the mechanical energy (raindrop drippage, wind and vibration etc.) for being difficult to collect of environment where sensor to electric energy,
Energy supply for solving the problems, such as sensor network.Other than being powered to sensor as energy source using TENG, the electric energy of TENG
Output size is also related with friction condition (friction contact load, frequency etc.) and environmental condition (temperature, humidity and air pressure etc.), so
It can also become self energizing sensor by TENG is designed to different sensing arrangements, directly apply to sensor network
Middle replacement traditional sensors carry out the physical quantitys such as sensed pressure (power), collision, vibration, stress (strain), displacement, humidity and temperature.
In order to solve the powerup issue of sensor network and wearable device, the friction nanometer of inexpensive and high electric energy output
Generator is widely studied.United States Patent (USP) US20140084748A1 " Triboelectric disclosed in 27 days March in 2014
Nanogenerator for powering portable electronics " have been put forward for the first time one kind and have been set for wearable
The friction nanometer power generator structure of available electricity.
Since wireless sensing transmitting needs large energy, without using management circuit, directly utilize
It is generally relatively difficult to achieve that TENG carries out wireless real-time sensing.Simultaneously because the output impedance of TENG is very big, Gang Cheng et al.
Article " the Pulsed Nanogenerator with Huge Instantaneous Output that on June 24th, 2013 delivers
Power Density " propose a kind of method improving TENG moment electric signal outputs using mechanical switch structure, maximum instantaneous
Current density and output power density are respectively up to 104A/m2With 3.6 × 105W/m2.In addition, the input impedance due to TENG is high
Up to tens to hundreds of megohms, and the input impedance of general circuit is relatively low so that it can not be matched with back-end circuit impedance, be caused
The decaying of electric signal reality output is huge.Article " the Using a that PareshVasandani et al. was delivered on the 23rd in September in 2017
synchronous switch to enhance output performance of triboelectric
A kind of structure of synchronous switch is utilized in nanogenerators ", and the input impedance of TENG is reduced to from a megohm magnitude
Ohm is to tens ohm levels so that TENG can be effectively matched and connect with back-end circuit.
In addition, possessing a large amount of access sensor in sensor network, since the output signal of TENG carries information content not
It is enough, the source of difference TENG sensor signals in sensor network is cannot be distinguished from out, limits TENG in sensor network
Using.
Invention content
The self-powered friction nanometer with identity information that in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of
Generator wireless sensing emission system.
The present invention includes the friction nanometer power generator with mechanical switch structure and radio frequency identification signal generates and transmitting
Circuit.It includes that capacitance C, resistance R, transformer T and wireless signal produce that the radio frequency identification signal, which is generated with radiating circuit,
Raw device；Input coil one end of transformer T is connect with the one end capacitance C, and the other end is connect with the one end resistance R, the capacitance C other ends with
The resistance R other ends connect；The output winding both ends of transformer T are separately connected with wireless signal generator both ends；Band mechanical switch
The voltage signal output end of the friction nanometer power generator of structure is connected to the both ends capacitance C；Capacitance C, resistance R and the transformer
Input coil and output winding in T form rlc circuit.
The voltage signal of friction nanometer power generator output with mechanical switch structure generates resonance signal in rlc circuit,
Resonance signal is input to by transformer T in wireless signal generator, makes wireless signal generator under the driving of resonance signal
Flicker, transmitting laser signal or electromagnetic signals, flicker frequency, laser signal frequency or electromagnetic wave signal frequency are used as and penetrate
Frequency identification signals generate the resonant frequency with resonance signal in radiating circuit, and the resonant frequency of the resonance signal is band machine
The radio frequency identification information of the friction nanometer power generator output voltage signal of tool construction of switch.
Preferably, the Standard resistance range of the resistance is at 0 ohm to 1000 ohm.
Preferably, the inductance value range of the input coil and output winding is 1 microhenry to 100 milihenries.
Preferably, the capacitance value range of the capacitance is 0 method to 10 microfarads.
Lead to resonance signal resonant frequency caused by radiating circuit preferably, the radio frequency identification signal is generated
Cross capacitance C, the input coil in transformer T or output winding inductance one of them variation or combination thereof variation come
Control.
Preferably, the input coil of the transformer and the turn ratio of output winding are 1：1.
Preferably, the wireless signal generator is light emitting diode or laser diode；
Preferably, the wireless signal generator is two induction coils, two resonance type coils, resonator or micro-
Band antenna；When wireless signal generator is two induction coils or two resonance type coils, one of induction coil or resonance
The output winding both ends of transformer, another induction coil or resonance type coil are accessed as output in type coil both ends；Wireless communication
When number generator is resonator or microstrip antenna, the output winding two of the input terminal access transformer of resonator or microstrip antenna
End；Two induction coils, two resonance type coils, resonator or microstrip antenna electromagnetic signals.
Preferably, the friction nanometer power generator with mechanical switch structure be detection pressure, vibration, stress, strain,
Displacement, humidity or temperature the friction nano-sensor with mechanical switch structure.
The device have the advantages that：
It is mostly based on the wireless sensing and emission system of friction nanometer power generator at this stage, is required for the energy of external active
Buret manage circuit charge the battery with subsequent electricity consumption, make it not and be self-powered sensing transmitting system truly
System.The present invention can be in the case of the energy management circuit and battery without external active, parameter to be measured outside real-time response
The excitation of (such as pressure, vibration etc.), at least 3 meters of optical signal, laser signal or electromagnetic wave signal can be propagated by launching.Separately
Outside, traditional wireless sensing and emission system based on friction nanometer power generator, the wireless signal of transmitting is without identification
Information, and the present invention by the identity identification information generation circuit without power supply to come come with mechanical switch friction nanometer send out
The voltage signal of motor is modulated, it is made to carry different identity labels, is quite suitable for setting up really self-powered be based on
The wireless sensor network of friction nanometer power generator.The present invention is in external parameter variation to be measured, laser signal that wireless receiving arrives
Resonant frequency it is constant, radio frequency identification information stability not will produce erroneous judgement.The capacitance that the present invention passes through change capacitance C
Change the resonant frequency (and after capacitance C is determined, the resonant frequency of the rlc circuit is exactly fixed) of rlc circuit, reaches acquisition
The purpose of different radio frequency identification signals.The present invention can be used for production technology, the wireless and passive detection and monitoring of equipment, pressure
Automatic starting device caused by power, displacement etc., entrance personnel count, battlefield monitors, antitheft etc..
Description of the drawings
Fig. 1 is that the embodiment of the present invention generates in radio frequency identification signal and uses laser diode conduct in radiating circuit
Circuit theory schematic diagram when wireless signal transmission source.
It is 0 that Fig. 2 (a), Fig. 2 (b), Fig. 2 (c), Fig. 2 (d), Fig. 2 (e), which are the embodiment of the present invention respectively in the capacitance of capacitance,
Radio frequency identification signal generates the band with radiating circuit transmitting when pico farad, 112 pico farads, 195 pico farads, 336 pico farads and 451 pico farad
There is the voltage tester time-domain diagram of the wireless sensing transmitting signal of different radio frequency identity identification information.
It is 0 pico farad, 112 pico farads, 195 pico farads, 336 pico farads, 451 skins that Fig. 3, which is the embodiment of the present invention in the capacitance of capacitance,
Radio frequency identification signal is generated when method sends out with the wireless sensing with different radio frequency identity identification information of radiating circuit transmitting
Penetrate the voltage tester frequency domain figure of signal.
Fig. 4 is the radio frequency identity under different stress of the friction nanometer power generator with mechanical switch structure in the embodiment of the present invention
Identification signal generates the voltage with the wireless sensing transmitting signal with different radio frequency identity identification information of radiating circuit transmitting
Test time-domain diagram.
Specific implementation mode
In order to more specifically describe the present invention, technical scheme of the present invention is carried out with reference to the accompanying drawings and embodiments detailed
It describes in detail bright.
Referring to Fig. 1, the self-powered friction nanometer power generator wireless sensing emission system of identity information, including band machinery are carried
The friction nanometer power generator 1 and radio frequency identification signal of construction of switch generate and radiating circuit 2.Radio frequency identification signal produces
It is raw to include capacitance C, resistance R, transformer T and laser diode D with radiating circuit 2；Input coil one end of transformer T and capacitance
The one end C connects, and the other end is connect with the one end resistance R, and the capacitance C other ends are connect with the resistance R other ends；The output line of transformer T
Circle both ends are separately connected with the both ends laser diode D；The voltage signal of friction nanometer power generator 1 with mechanical switch structure exports
End is connected to the both ends capacitance C.Radio frequency identification signal is generated generates the substantially former of radio frequency identification signal with radiating circuit
Reason is：Capacitance C, resistance R and the input coil in transformer T and output winding composition rlc circuit, rubbing with mechanical switch structure
It wipes the voltage signal (or transducing signal) that nano generator 1 exports and generates resonance signal in rlc circuit, resonance signal passes through
Transformer T is input in laser diode D, and laser diode D is made to generate flicker under the driving of resonance signal, and flicker frequency is made
The resonant frequency with resonance signal in radiating circuit is generated for radio frequency identification signal, the resonant frequency of the resonance signal is
The radio frequency identification information of 1 output voltage signal of friction nanometer power generator with mechanical switch structure.Band mechanical switch structure
Friction nanometer power generator be detect pressure, vibration, stress, strain, displacement, humidity or temperature rubbing with mechanical switch structure
Nano-sensor is wiped, different pressures, vibration, stress, strain, displacement, humidity or temperature change the friction with mechanical switch structure
The voltage signal magnitude of nano generator output, achievees the purpose that sensing.The present embodiment is changed by changing the capacitance of capacitance C
The resonant frequency (and after capacitance C is determined, the resonant frequency of the rlc circuit is exactly fixed) for becoming rlc circuit, it is different to reach acquisition
The purpose of radio frequency identification signal.
This example generates different radio frequency identification information by changing the capacitance of capacitance C, and wireless receiving is to (passing through
Wireless receiver receive) radio frequency identification signal generate with radiating circuit generate laser signal time-domain diagram such as Fig. 2 (a),
Shown in Fig. 2 (b), Fig. 2 (c), Fig. 2 (d) and Fig. 2 (e), horizontal axis represents time t, and the longitudinal axis represents the laser signal width that wireless receiving arrives
Value A.As it can be seen that the capacitance of capacitance C is bigger, the spacing between the harmonic wave peak and peak of laser signal is bigger.To Fig. 2 (a), figure
The time domain waveform of 2 (b), Fig. 2 (c), Fig. 2 (d) and Fig. 2 (e) obtain Fig. 3 after carrying out Fast Fourier Transform, and Fig. 3 is in different electricity
Under the capacitance for holding C, the radio frequency identification signal that wireless receiving arrives generates the laser signal frequency domain figure generated with radiating circuit.
In figure 3, horizontal axis represents frequency F, and the longitudinal axis represents the normalization amplitude N for the laser signal that wireless receiving arrives.Analysis chart 3, electricity
The capacitance for holding C is bigger, and the resonant frequency of laser signal is smaller.
The friction nanometer power generator of this out tape mechanical switch structure is using the rubbing with mechanical switch structure for detecting pressure
When wiping nano-sensor, the voltage tester time-domain diagram of wireless sensing transmitting signal is as shown in figure 4, horizontal axis represents under different stress
Time t, the longitudinal axis represent the normalization amplitude N for the laser signal that wireless receiving arrives.Analysis chart 4, when driving is with mechanical switch
When the power of friction nanometer power generator 1 increases, the resonant frequency (radio frequency identification information) for the laser signal that wireless receiving arrives is no
Become, the amplitude for the laser signal that wireless receiving arrives increases.
Technical scheme of the present invention and advantageous effect is described in detail in above-described specific implementation mode, Ying Li
Solution is not intended to restrict the invention the foregoing is merely presently most preferred embodiment of the invention, all principle models in the present invention
Interior done any modification, supplementary, and equivalent replacement etc. are enclosed, should all be included in the protection scope of the present invention.
Claims (9)
1. the self-powered friction nanometer power generator wireless sensing emission system with identity information, it is characterised in that：Including band machine
The friction nanometer power generator and radio frequency identification signal of tool construction of switch generate and radiating circuit；The radio frequency identification
It includes capacitance C, resistance R, transformer T and wireless signal generator that signal, which is generated with radiating circuit,；The input coil one of transformer T
End is connect with the one end capacitance C, and the other end is connect with the one end resistance R, and the capacitance C other ends are connect with the resistance R other ends；Transformer T
Output winding both ends be separately connected with wireless signal generator both ends；The electricity of friction nanometer power generator with mechanical switch structure
Pressure signal output end is connected to the both ends capacitance C；Capacitance C, resistance R and the input coil in transformer T and output winding
Form rlc circuit；
The voltage signal of friction nanometer power generator output with mechanical switch structure generates resonance signal, resonance in rlc circuit
Signal is input to by transformer T in wireless signal generator, wireless signal generator is made to be flickered under the driving of resonance signal,
Emit laser signal or electromagnetic signals, flicker frequency, laser signal frequency or electromagnetic wave signal frequency are as radio frequency body
Part identification signal generates the resonant frequency with resonance signal in radiating circuit, and the resonant frequency of the resonance signal is that band machinery is opened
Close the radio frequency identification information of the friction nanometer power generator output voltage signal of structure.
2. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The Standard resistance range of the resistance is at 0 ohm to 1000 ohm.
3. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The inductance value range of the input coil and output winding is 1 microhenry to 100 milihenries.
4. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The capacitance value range of the capacitance is 0 method to 10 microfarads.
5. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The radio frequency identification signal is generated passes through capacitance with resonance signal resonant frequency caused by radiating circuit
C, the input coil in transformer T or output winding inductance one of them variation or combination thereof variation control.
6. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The input coil of the transformer and the turn ratio of output winding are 1：1.
7. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The wireless signal generator is light emitting diode or laser diode.
8. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The wireless signal generator is two induction coils, two resonance type coils, resonator or micro-strip day
Line；When wireless signal generator is two induction coils or two resonance type coils, one of induction coil or resonance molded line
The output winding both ends of both ends access transformer are enclosed, another induction coil or resonance type coil are as output；Wireless signal produces
When raw device is resonator or microstrip antenna, the output winding both ends of the input terminal access transformer of resonator or microstrip antenna；Two
A induction coil, two resonance type coils, resonator or microstrip antenna electromagnetic signals.
9. the self-powered friction nanometer power generator wireless sensing emission system according to claim 1 with identity information,
It is characterized in that：The friction nanometer power generator with mechanical switch structure be detection pressure, vibration, stress, strain, displacement,
The friction nano-sensor with mechanical switch structure of humidity or temperature.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365122A (en) * | 2019-06-03 | 2019-10-22 | 杭州电子科技大学 | Self energizing wireless sensing system based on friction nanometer power generator |
| CN112669488A (en) * | 2020-11-26 | 2021-04-16 | 杭州电子科技大学 | Metal product counting and sorting method based on friction nano generator and LC sensing |
| CN113237496A (en) * | 2021-06-04 | 2021-08-10 | 重庆大学 | Active friction nano generator sensor with preprocessing circuit |
| CN113938050A (en) * | 2021-09-13 | 2022-01-14 | 浙江大学 | High-sensitivity instantaneous self-powered wireless sensing system of friction nano generator |
| CN114674348A (en) * | 2022-04-19 | 2022-06-28 | 杭州电子科技大学 | Amplitude and frequency double-parameter sensing decoupling system based on friction nano generator |
| CN115305769A (en) * | 2022-08-19 | 2022-11-08 | 北京化工大学 | Runway surface layer, energy storage runway, intelligent runway and motion data monitoring method |
| CN115550871A (en) * | 2022-10-28 | 2022-12-30 | 海宁市产业技术研究院 | Self-powered multi-parameter wireless sensing system based on friction nano generator |
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| CN110365122A (en) * | 2019-06-03 | 2019-10-22 | 杭州电子科技大学 | Self energizing wireless sensing system based on friction nanometer power generator |
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| CN112669488A (en) * | 2020-11-26 | 2021-04-16 | 杭州电子科技大学 | Metal product counting and sorting method based on friction nano generator and LC sensing |
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| CN113237496A (en) * | 2021-06-04 | 2021-08-10 | 重庆大学 | Active friction nano generator sensor with preprocessing circuit |
| CN113938050A (en) * | 2021-09-13 | 2022-01-14 | 浙江大学 | High-sensitivity instantaneous self-powered wireless sensing system of friction nano generator |
| CN113938050B (en) * | 2021-09-13 | 2024-06-11 | 浙江大学 | High-sensitivity instantaneous self-powered wireless sensing system of friction nano generator |
| CN114674348A (en) * | 2022-04-19 | 2022-06-28 | 杭州电子科技大学 | Amplitude and frequency double-parameter sensing decoupling system based on friction nano generator |
| CN114674348B (en) * | 2022-04-19 | 2024-04-12 | 杭州电子科技大学 | Amplitude and frequency double-parameter sensing decoupling system based on friction nano generator |
| CN115305769A (en) * | 2022-08-19 | 2022-11-08 | 北京化工大学 | Runway surface layer, energy storage runway, intelligent runway and motion data monitoring method |
| CN115550871A (en) * | 2022-10-28 | 2022-12-30 | 海宁市产业技术研究院 | Self-powered multi-parameter wireless sensing system based on friction nano generator |
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