CN107332461A - The electric energy management system and its method of self-powered sensing micro-system based on vibrational energy acquisition technique - Google Patents
The electric energy management system and its method of self-powered sensing micro-system based on vibrational energy acquisition technique Download PDFInfo
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- CN107332461A CN107332461A CN201611152002.8A CN201611152002A CN107332461A CN 107332461 A CN107332461 A CN 107332461A CN 201611152002 A CN201611152002 A CN 201611152002A CN 107332461 A CN107332461 A CN 107332461A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004146 energy storage Methods 0.000 claims abstract description 30
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 238000007726 management method Methods 0.000 claims description 48
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 101001128814 Pandinus imperator Pandinin-1 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Abstract
The invention provides a kind of electric energy management system of self-powered sensing micro-system based on vibrational energy acquisition technique and its method.The system includes：Vibration generating device, energy storage circuit, energy management circuit and sensing micro-system load circuit.Wherein the vibrational energy in environment is converted into electric energy by vibration generating device, and is output to energy storage circuit；Energy management circuit utilizes the electric energy that energy storage circuit is stored, and realizes self-power supply, self-contr ol is adaptively rear end sensing micro-system load energy supply.The intelligent power management circuit of the present invention, which has, can arbitrarily control storage energy value, supplying DC voltage magnitude can arbitrarily be controlled, the function at wireless air-time interval can be arbitrarily controlled, so as to farthest improve utilization rate of electrical, the electricity generation efficiency of vibration generating device is improved indirectly.Confession electro-technical field of the present invention suitable for the system such as the sensing micro-system in vibration environment, wireless Internet of Things, portable wearable device, unattended.
Description
Technical field
The invention belongs to technical field of power generation, and in particular to a kind of self-powered sensing based on vibrational energy acquisition technique is micro-
The electric energy management system and its method of system.
Background technology
Battery is bulky for microelectronic component, short life, chemical contamination are serious, and needs periodically more
Change, this gives wireless senser or wireless network node in long-term work to bring many inconvenience and financial burden.
With micro electronmechanical (MEMS), the technology such as low consumption circuit design is developed rapidly, the volume and power consumption of sensor-based system
Less and less, this, which to power for wireless sensing micro-system using the generation technology and its TRT of ambient vibration energy, turns into
May.
Existing vibration generating device does not have effective energy management circuit, causes capacity usage ratio not high, controllability and logical
It is not strong with property, the electricity generation efficiency of vibration generating device is reduced indirectly, therefore harsh is required to the generated energy of vibration generating device.
The content of the invention
For problem of the prior art, it is an object of the invention to provide a kind of confession based on vibrational energy acquisition technique
The electric energy management system and its method of fax sense micro-system, can realize intelligent energy management.
The technical solution adopted by the present invention is as follows：
A kind of self-powered based on vibrational energy acquisition technique senses the electric energy management system of micro-system, including energy stores
Circuit and energy management circuit；The energy storage circuit stores the electric energy that vibration generating device is produced by electric capacity；The energy
Buret manages the electric energy work that circuit is stored by the energy storage circuit, including voltage comparator chip and two single-pole double throws
Switch chip；The voltage comparator chip produces reference voltage by itself, and reality is serially connected using the resistance of different resistances
Now to the monitoring of the voltage of the electric capacity, and low and high level is exported by the voltage of comparison reference voltage and the electric capacity, from
And control whether passage and sensing micro-system load circuit that described two single-pole double-throw switch (SPDT) chips use work.
Further, the energy storage circuit front end includes full-wave rectifying circuit.
A kind of self-powered sensing micro-system based on vibrational energy acquisition technique, including vibration generating device and the micro- system of sensing
Energy storage circuit and institute in system load circuit, in addition to electric energy management system recited above, the electric energy management system
Electrical connection between vibration generating device is stated, the electric energy that the vibration generating device is produced is stored；In the electric energy management system
Energy management circuit is managed to electric energy, and the sensing micro-system load circuit is powered.
Further, the vibration generating device is used based on any energy converslon materials in ambient vibration generation technology
And the TRT of electricity generating principle.
Further, the vibration generating device is a piezoelectric generating device based on piezoelectric cantilever.
Further, the piezoelectric generating device is placed in vibration environment, and resonant frequency and the environment of piezoelectric cantilever shake
Dynamic source frequency is equal, so that Piezoelectric Cantilever Beams vibration produces maximum strain.
A kind of self-powered based on vibrational energy acquisition technique senses the electric energy management method of micro-system, energy management circuit
A part of electric energy stored using energy storage circuit is monitored to the voltage of storage capacitance, is connected not by reasonable disposition
With the resistance of resistance so that when the voltage of storage capacitance is more than the threshold value of setting, energy management circuit judges that storage circuit is
It is no to reach the critical value that driving rear end senses micro-system load energy, if sensing micro-system load circuit is powered.
Further, if two single-pole double-throw switch (SPDT)s are S1, S2, the specific deterministic process that the energy management circuit is carried out
For：
1) when the voltage of storage capacitance is more than the threshold value of setting, single-pole double-throw switch (SPDT) S1 output is more than voltage comparator
Comparison voltage, now voltage comparator output high level, single-pole double-throw switch (SPDT) S1, S2 input are switched to the other end,
So that storage capacitance is joined directly together by switch S2 with sensing micro-system load circuit so that energy storage circuit is to sensing micro-system
Load circuit is powered；
2) when another threshold value of the storage capacitance voltage less than setting, energy management circuit judges the electricity of storage circuit storage
Amount, stops the power supply to sensing micro-system load circuit, and detailed process is：When storage capacitance voltage is less than another threshold value
When, single-pole double-throw switch (SPDT) S1 comparison voltage of the output less than voltage comparator, now voltage comparator output low-voltage will be single
Double-pole double throw switch S1, S2's is outputted to the other end so that switch S2 disconnects storage capacitance and sensing micro-system load circuit
Between connection so that energy storage circuit stop to sensing micro-system load circuit power.
Further, step 1) threshold value be 3.3V, step 2) another threshold value be 1.5V.
Beneficial effects of the present invention are as follows：
Vibrating power-generation dress in the problem of lacking effective energy management circuit for existing vibrating power-generation system, the present invention
Put and the vibrational energy in environment is converted into electric energy, and be output to energy storage circuit；Energy management circuit utilizes energy stores electricity
The electric energy of road storage, realizes self-power supply, self-contr ol is adaptively rear end sensing micro-system load energy supply.The present invention's
Intelligent Energy management circuit with direct current supply characteristic, with can arbitrarily control storage energy value, can arbitrarily control power supply straight
Voltage magnitude is flowed, the function at wireless air-time interval can be arbitrarily controlled, so as to farthest improve the electric energy profit collected
With rate, the electricity generation efficiency of vibration generating device is improved indirectly.
It the composite can be widely applied to the wireless Internet of Things, portable wearable device, unmanned value being in vibration environment
The self-contained electric system such as keep, power management circuit can be designed with user's request there is provided the output of the direct current energy of different amplitudes, realization is shaken
Dynamic TRT, energy storage circuit, energy management circuit and sense the Integration Design of micro-system load circuit, manufacture and
Using.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is a kind of circuit diagram of embodiment of the present invention.
Embodiment
Electric energy management system and its side the following is a kind of self-powered sensing micro-system based on vibrational energy acquisition technique
The specific embodiment of method, to the operational version further description of the present invention, but the present invention is not limited to the embodiment.
Fig. 1 is the structural representation of the present invention.The self-powered based on vibrational energy acquisition technique of the present invention senses micro- system
The electric energy management system of system includes：Vibration generating device, energy storage circuit, energy management circuit and sensing micro-system load
Circuit.Wherein energy storage circuit, energy management circuit can be individually referred to as " electric energy management system ".
Wherein vibration generating device is any electricity generation material of use and the hair of any generating mechanism based on vibrating power-generation
Electric installation.Electrically connected between vibration generating device and energy storage circuit.Energy storage circuit front end uses diode D1~D4
Full-wave rectifying circuit is built, the sine wave alternating current that vibration generating device is produced is by being stored in storage electricity after full-wave rectifying circuit
Hold in C1.
The electric energy that energy management circuit is stored by energy storage circuit works, and energy management circuit includes voltage comparator
Chip U1, two single-pole double-throw switch (SPDT) chip S1 and S2 (SPDT).Voltage comparator can produce reference voltage, profit by itself
The monitoring of the voltage to storage capacitance C1 can be realized by being serially connected with resistance R1, R2 and R3 of rational different resistances, be passed through
Comparison reference voltage and energy storage capacitor C1 voltage and export low and high level, so as to control single-pole double-throw switch (SPDT) chip to use
Passage, and sensing micro-system load circuit whether work.V1 represents the voltage of storage capacitance in Fig. 1, and as final is defeated
Go out voltage；V2 represents that threshold voltage 1.5V, V3 represent threshold voltage 3.3V.The two threshold voltages can not be exchanged, and INPUT is represented
The electric input energy storage circuit that vibration generating device is sent, OUTPUT represents to be powered sensing micro-system load circuit.
An instantiation is illustrated in figure 2, micro-system is sensed using this self-powered based on vibrational energy acquisition technique
Electric energy management system and its method be that temperature sensor and wireless transmitter module are powered.
Vibration generating device is a piezoelectric generating device based on piezoelectric cantilever, and wherein piezoelectric can be any pressure
Electric material, such as piezoelectric ceramics, piezopolymer.
Piezoelectricity oscillating generating set is placed in vibration environment, in order to realize that ceiling capacity generates electricity, it is desirable to piezoelectric cantilever
Resonant frequency is equal with ambient vibration source frequency, Piezoelectric Cantilever Beams vibration is produced maximum strain.Vibration generating device
Output is with energy storage circuit using electrically connecting, and the sinusoidal ac for being exported vibration generating device by full-wave rectifying circuit is whole
Flow to store after direct current.
Energy management circuit is monitored using a part of electric energy of storage to the voltage of storage capacitance, passes through reasonable disposition
R1, R2, R3 resistance so that when the voltage of storage capacitance is more than the threshold value such as 3.3V of setting, energy management circuit judges to deposit
Whether storing up electricity road reaches that driving rear end senses the critical value of micro-system load energy, if sensing micro-system load circuit is carried out
Power supply.Specifically deterministic process is：
1) when the voltage of storage capacitance is more than 3.3V, single-pole double-throw switch (SPDT) S1 comparison of the output more than voltage comparator
Voltage, now voltage comparator output high level, is switched to the other end so that open by single-pole double-throw switch (SPDT) S1, S2 input
Close S2 to be joined directly together storage capacitance with sensing micro-system load circuit so that energy storage circuit is to sensing micro-system load electricity
Road powers；
2) as another threshold value such as 1.5V of the storage capacitance voltage less than setting, energy management circuit judges that storage circuit is deposited
The electricity of storage is, it is necessary to stop the power supply to sensing micro-system load circuit, and detailed process is：When storage capacitance voltage is less than 1.5V
When, single-pole double-throw switch (SPDT) S1 comparison voltage of the output less than voltage comparator, now voltage comparator output low-voltage will be single
Double-pole double throw switch S1, S2's is outputted to the other end so that switch S2 disconnects storage capacitance and sensing micro-system load circuit
Between connection so that energy storage circuit stop to sensing micro-system load circuit power.
In this example, the model LTC1540 that voltage comparator chip is used, the model that single-pole double-throw switch (SPDT) chip is used
For MAX4624, the reference voltage of the Pin6 pin output of voltage comparator chip is 1.182V, by its Pin4 pin phase with itself
Even, Pin3 pin are connected with the positive pole of storage capacitance, that is, the positive input for causing voltage comparator is the voltage of storage capacitance, instead
Phase input is that reference voltage 1.182V, Pin8 pin is connected with the Pin1 pin of two single-pole double-throw switch (SPDT) chips, even if using voltage
The output control single-pole double-throw switch (SPDT) of comparator chip.When voltage comparator exports high level, pass through single-pole double-throw switch (SPDT) S2
Storage circuit can be caused to power the rear end sensing i.e. temperature sensor of micro-system load circuit with wireless transmitter module, temperature is passed
Sensor is started working, and measures current location temperature, wireless transmitter module is by the result of temperature sensor measurement with the side of being wirelessly transferred
Formula is sent to host computer.
Claims (10)
1. a kind of self-powered based on vibrational energy acquisition technique senses the electric energy management system of micro-system, it is characterised in that bag
Include energy storage circuit and energy management circuit；The energy storage circuit stores the electricity that vibration generating device is produced by electric capacity
Energy；The electric energy that the energy management circuit is stored by the energy storage circuit works, including voltage comparator chip and two
Individual single-pole double-throw switch (SPDT) chip；The voltage comparator chip produces reference voltage by itself, utilizes the resistance of different resistances
It is serially connected and realizes the monitoring to the voltage of the electric capacity, and height is exported by the voltage of comparison reference voltage and the electric capacity
Low level, thus control passage and sensing micro-system load circuit that described two single-pole double-throw switch (SPDT) chips use whether work
Make.
2. electric energy management system as claimed in claim 1, it is characterised in that：It is whole that the energy storage circuit front end includes all-wave
Current circuit.
3. a kind of self-powered sensing micro-system based on vibrational energy acquisition technique, including vibration generating device and sensing micro-system
Load circuit, it is characterised in that also including the electric energy management system described in claim 1, the energy in the electric energy management system
Electrically connected between amount storage circuit and the vibration generating device, store the electric energy that the vibration generating device is produced；The electricity
Energy management circuit in energy management system is managed to electric energy, and the sensing micro-system load circuit is powered.
4. self-powered as claimed in claim 3 senses micro-system, it is characterised in that：The vibration generating device, which is used, is based on ring
The TRT of any energy converslon materials and electricity generating principle in the vibrating power-generation technology of border.
5. self-powered as claimed in claim 3 senses micro-system, it is characterised in that：The vibration generating device is one based on pressure
The piezoelectric generating device of electric cantilever beam.
6. self-powered as claimed in claim 3 senses micro-system, it is characterised in that：The piezoelectric generating device is placed in oscillation ring
In border, the resonant frequency of piezoelectric cantilever is equal with ambient vibration source frequency, so that Piezoelectric Cantilever Beams vibration produces maximum
Strain.
7. self-powered as claimed in claim 3 senses micro-system, it is characterised in that：The energy storage circuit front end includes complete
Ripple rectification circuit.
8. a kind of self-powered based on vibrational energy acquisition technique of electric energy management system described in use claim 1 senses micro- system
The electric energy management method of system, it is characterised in that a part of electric energy that energy management circuit is stored using energy storage circuit is to depositing
The voltage that storing up electricity is held is monitored, the resistance for the different resistance connected by reasonable disposition so that when the voltage of storage capacitance is big
When the threshold value of setting, energy management circuit judges whether storage circuit reaches facing for driving rear end sensing micro-system load energy
Dividing value, if be powered to sensing micro-system load circuit.
9. electric energy management method as claimed in claim 8, it is characterised in that set two single-pole double-throw switch (SPDT)s as S1, S2, described
Energy management circuit carry out specific deterministic process be：
1) when the voltage of storage capacitance is more than the threshold value of setting, single-pole double-throw switch (SPDT) S1 ratio of the output more than voltage comparator
Compared with voltage, single-pole double-throw switch (SPDT) S1, S2 input are switched to the other end by now voltage comparator output high level so that
Storage capacitance is joined directly together by switch S2 with sensing micro-system load circuit so that energy storage circuit is to sensing micro-system load
Circuit is powered；
2) when another threshold value of the storage capacitance voltage less than setting, energy management circuit judges the electricity of storage circuit storage,
Stop the power supply to sensing micro-system load circuit, detailed process is：It is single when storage capacitance voltage is less than another threshold value
Double-pole double throw switch S1 comparison voltage of the output less than voltage comparator, now voltage comparator output low-voltage is double by hilted broadsword
Throw switch S1, S2's is outputted to the other end so that switch S2 is disconnected between storage capacitance and sensing micro-system load circuit
Connection so that energy storage circuit stop to sensing micro-system load circuit power.
10. electric energy management method as claimed in claim 9, it is characterised in that step 1) threshold value is 3.3V, step 2) institute
Another threshold value is stated for 1.5V.
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Cited By (9)
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|---|---|---|---|---|
| CN107910935A (en) * | 2017-12-13 | 2018-04-13 | 河南师范大学 | A kind of self-driven energy supplying system and method based on piezoelectric motor |
| CN109004640A (en) * | 2018-07-18 | 2018-12-14 | 电子科技大学 | A kind of self-power supply system and working method |
| CN109149897A (en) * | 2018-10-26 | 2019-01-04 | 西南交通大学 | A kind of energy " convolution " thin-slab structure of control frequency vibration damping |
| CN109858601A (en) * | 2019-03-06 | 2019-06-07 | 北京理工大学 | It is a kind of that unification number system can be passed based on mechanical energy |
| CN110492585A (en) * | 2019-07-15 | 2019-11-22 | 中国船舶重工集团公司第七一九研究所 | The miniaturized environment energy acquisition storage energy resource system and method for high load capability |
| CN111835077A (en) * | 2020-07-21 | 2020-10-27 | 上海科技大学 | Reconfigurable vibration energy supply Internet of things node |
| CN112117931A (en) * | 2019-06-21 | 2020-12-22 | 西华师范大学 | Piezoelectric vibration energy collecting circuit |
| CN113224906A (en) * | 2021-05-07 | 2021-08-06 | 重庆大学 | Self-powered satellite power generation device based on rotating gyroscope |
| CN114123441A (en) * | 2018-11-06 | 2022-03-01 | 武汉领普科技有限公司 | Self-powered method and device based on polarity detection |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107910935A (en) * | 2017-12-13 | 2018-04-13 | 河南师范大学 | A kind of self-driven energy supplying system and method based on piezoelectric motor |
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| CN109004640A (en) * | 2018-07-18 | 2018-12-14 | 电子科技大学 | A kind of self-power supply system and working method |
| CN109149897A (en) * | 2018-10-26 | 2019-01-04 | 西南交通大学 | A kind of energy " convolution " thin-slab structure of control frequency vibration damping |
| CN109149897B (en) * | 2018-10-26 | 2024-01-19 | 西南交通大学 | Energy-feedback type 'convolution' thin plate structure with frequency control and vibration reduction |
| CN114123441A (en) * | 2018-11-06 | 2022-03-01 | 武汉领普科技有限公司 | Self-powered method and device based on polarity detection |
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| CN109858601A (en) * | 2019-03-06 | 2019-06-07 | 北京理工大学 | It is a kind of that unification number system can be passed based on mechanical energy |
| CN112117931A (en) * | 2019-06-21 | 2020-12-22 | 西华师范大学 | Piezoelectric vibration energy collecting circuit |
| CN112117931B (en) * | 2019-06-21 | 2022-08-19 | 西华师范大学 | Piezoelectric vibration energy collecting circuit |
| CN110492585B (en) * | 2019-07-15 | 2023-02-28 | 中国船舶重工集团公司第七一九研究所 | High-load-capacity miniaturized environmental energy collection and storage energy system and method |
| CN110492585A (en) * | 2019-07-15 | 2019-11-22 | 中国船舶重工集团公司第七一九研究所 | The miniaturized environment energy acquisition storage energy resource system and method for high load capability |
| CN111835077B (en) * | 2020-07-21 | 2022-06-21 | 上海科技大学 | Reconfigurable vibration energy supply Internet of things node |
| CN111835077A (en) * | 2020-07-21 | 2020-10-27 | 上海科技大学 | Reconfigurable vibration energy supply Internet of things node |
| CN113224906A (en) * | 2021-05-07 | 2021-08-06 | 重庆大学 | Self-powered satellite power generation device based on rotating gyroscope |
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