CN206849034U - A kind of self-powered based on electrostatic energy collection refers to vein recognition system - Google Patents
A kind of self-powered based on electrostatic energy collection refers to vein recognition system Download PDFInfo
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- CN206849034U CN206849034U CN201621277715.2U CN201621277715U CN206849034U CN 206849034 U CN206849034 U CN 206849034U CN 201621277715 U CN201621277715 U CN 201621277715U CN 206849034 U CN206849034 U CN 206849034U
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- supply module
- electrostatic energy
- finger
- power supply
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Abstract
The utility model discloses a kind of self-powered based on electrostatic energy collection to refer to vein recognition system, and the utility model belongs to living things feature recognition field.The utility model includes electrostatic energy collector, power supply module, processor, infrared light supply module, infrared image acquisition device, memory；Electrostatic energy collector by finger to be measured to its pressure conversion into pulse voltage, and be output to power supply module, self-powered carried out to system；Processor is by sending instruction control infrared light supply module, infrared image acquisition device and the power supply and power-off of memory to power supply module；And the collection and identification of finger venous image are completed in a pulse voltage.The utility model is that system supplies electric energy without outside cable power or internal cell, electric energy caused by electrostatic energy collector is only contacted with regard to that can complete collection and the identification function of finger vein image by finger to be measured, significant energy-saving effect is served, and is applied to portable finger vein identification device.
Description
Technical field
The utility model belongs to living things feature recognition field, more particularly to a kind of self-powered based on electrostatic energy collection refers to
Vein recognition system.
Background technology
As various countries are to public safety, the attention of information security, biological identification technology gradually incorporated people's work and
The various aspects of life, wherein, refer to vein identification technology by natural live body, it is extremely difficult it is stolen with being imitated the advantages that as respectively grinding
Study carefully mechanism, the focus of enterprises pay attention.
Refer to vein identification technology to have the advantage that compared to other biological feature recognition mode：
1）Higher generality, applicable colony is extensive, and almost all people can be applicable finger hand vein recognition progress identity and recognize
Card；
2）Preferably unique, according to medical evidence, the finger vena distribution between different people is entirely different；
3）Higher stability, it is the identity that personnel are identified using the biological characteristic volume of body extremity to refer to hand vein recognition,
This feature is also little affected by the influence of the factors such as body physiological state, lesion；
4）Higher collection property, refer to venous information collection it is convenient, fast, accurate, only in blood of human body proper flow
In the case of can just be identified, not by any defect such as the fold of skin surface, unity and coherence in writing, roughness, humidity and next time
Influence；
5）Higher acceptance level, using non-contact imaging technique, easily it is accepted by the public；
6）Higher anti-fraud, fin- ger vein authentication utilize the biological characteristic of inside of human body, not left when in use any
Vestige, it could be carried out only in the case of blood of human body proper flow during certification, so even being the vein for obtaining a people
Vascular graphic, live body duplication can not be also carried out completely using current technology；
7）It is harmful to human health, it is to penetrate the finger of human body using near infrared ray to obtain vein blood vessel to refer to hand vein recognition
Image, there is no any influence on human body；
8）Smaller feature extraction value, the feature extraction value of vein image is generally less than 1kb, compared to the feature of face
It is much smaller.
Finger vena carries out authentication as biological information of human body has the advantage of the above, therefore in bank, office field
Institute or some information security fields are widely used.Although the finger vein identification device of in the market can be to identification pair
As accurately being identified, but current scheme can not solving device continuous drain, endurance difference the problem of, it is impossible to up to
To the purpose of device portability, its reason is：
1）In finger vein identification device, infrared light supply, infrared image acquisition device and processor etc. are in for a long time
Working condition, significant portion of electric energy can be consumed.In some versions, such as document 1（CN 200910108815）Disclosed one kind
Finger vein image acquisition device and document 2（CN 201510115417）It is disclosed a kind of based on finger vena stereoscopic features
Vivo identification device and method, electronic device in device with device electricity be just constantly in working condition, continuously
Electric energy is consumed, is unfavorable for on a portable device；
2）Finger vein identification device uses wired power supply or battery powered mode at present.Wired power supply mode is by finger
Vein identification device use range localization；Though battery powered mode is unrestricted in use range, battery electric quantity has
Limit, its endurance turn into the obstruction for realizing portability.
The content of the invention
In order to solve prior art shortcoming, the utility model provides a kind of self-powered based on electrostatic energy collection and refers to vein
Identifying system.
Technical scheme is used by the utility model solves its technical problem：
A kind of self-powered based on electrostatic energy collection refers to vein recognition system, including：Housing, infrared light supply module, hand
Refer to detecting position, electrostatic energy collector, infrared image acquisition device, memory, processor and power supply module.
The finger detecting position is that the finger on the housing stretches into hole；The power supply module, memory and processor peace
In inner walls.
The infrared light supply module includes several near infrared illumination sources, and the infrared light supply module is located at finger detecting position
Top, between finger detecting position and infrared light supply module cover one layer of frosted glass scatter plate.
The infrared image acquisition device is located at the housing bottom below finger detecting position, for gathering under infrared light supply irradiation
Finger venous image.
The electrostatic energy collector is located at the both ends of finger detecting position, when tested finger is placed on the finger detecting position
When, the electrostatic energy collector collects electric energy and for referring to hand vein recognition for the self-powered based on electrostatic energy collection
System provides electric energy.
The memory, user's finger intravenous data is stored, for providing the body corresponding with finger vena to processor
Part information.
The processor is used to read the finger vena data in memory, and the finger gathered with infrared image acquisition device
Vein image is compared, and carries out finger vena identification.
The power supply module be used for near infrared illumination source, electrostatic energy collector, infrared image acquisition device, memory,
Processor provides work energy, and receives the control of processor, switches supply object according to the instruction of processor.
The infrared light supply module, finger detecting position, electrostatic energy collector, infrared image acquisition device, memory, processing
Device and power supply module are all installed on the housing.
The housing also includes the optical cavity of a closing, and the finger detecting position is located at the top of the optical cavity, finger inspection
Kept apart between location and the optical cavity with one piece of transparent glass；The infrared image acquisition device is arranged on the bottom of the optical cavity
Portion.
The housing is made up of black non transparent acrylic board.
The infrared light supply module, electrostatic energy collector, infrared image acquisition device, power supply module, processor and storage
Electrically connected between device.Power supply module respectively with infrared light supply module, electrostatic energy collector, infrared image acquisition device, processor
Electrically connected with memory；Other processor also electrically connects with infrared image acquisition device and memory.
Further, the electrostatic energy collector is made up of MEMS technology, including upper and lower two layers.Upper strata is by the poly- of flexibility
Tetrafluoroethene material is made, including substrate and nm cylinder array, backside of substrate covering layer of metal film, as output negative electricity
Pole；Lower floor is made up of metallic film, as output positive electrode.Upper and lower two layers of edge connector made of SU-8 materials connects,
And by upper and lower two separate.Output negative electrode and output positive electrode are electrically connected with wire with power supply module respectively.
Under original state, i.e., when polytetrafluoroethylene film top is without pressure is applied, polytetrafluoroethylene film and output positive electricity
Extremely separated, both do not have electric charge, and output negative electrode and output positive electrode do not have voltage output；Applied above polytetrafluoroethylene film
During plus-pressure, polytetrafluoroethylene film is contacted with output positive electrode, and negative electrical charge is produced inside polytetrafluoroethylene film, is being exported
Produce positive charge inside positive electrode, and to outside output pulse width be hundreds of ms, voltage peak reach hundreds of V pulse voltage.
The beneficial effects of the utility model are that the utility model is supplied without outside cable power or internal cell for system
Electric energy, electric energy caused by electrostatic energy collector is only contacted with regard to that can complete the collection and knowledge of finger venous image by finger to be measured
Other function.In no finger to be measured, system does not have electric energy supply, in off-mode；When there is finger to be measured, electrostatic energy
Collector produces pulse voltage, and system is powered, realizes self-powered function.The not power consumption of electrostatic energy collector in itself,
Therefore, the utility model serves significant energy-saving effect, and vein identification device high energy consumption, the endurance solved is low to ask
Topic, and realize the portability for referring to vein identification device.
Brief description of the drawings
Fig. 1 is the device profile that a kind of self-powered based on electrostatic energy collection refers to vein recognition system.
Fig. 2 is the module diagram that a kind of self-powered based on electrostatic energy collection refers to vein recognition system.
Fig. 3 is the structural representation of electrostatic energy collector.
Fig. 4 is the working timing figure that a kind of self-powered based on electrostatic energy collection refers to vein recognition system.
A kind of self-powered based on electrostatic energy collection in Fig. 5 positions refers to the workflow diagram of vein recognition system.
Embodiment
Knot and accompanying drawing are described further with embodiment to the utility model below：
As shown in figure 1, a kind of self-powered based on electrostatic energy collection of present embodiment refers to vein recognition system
Including infrared light supply module 1, frosted glass scatter plate 2, finger detecting position 3, electrostatic energy collector 4, infrared image acquisition device 5,
Infrared fileter 6, light transmission piece 8, closing optical cavity 9, power supply module 10, processor 11, memory 12, housing 13.
Housing 13 is made up of black non transparent acrylic board.
Infrared light supply module 1 is located at the top in housing 13, is made up of several infrarede emitting diodes；Finger detecting position
3 be the hole opened from the side of housing 13, and finger to be measured stretches into hole 7 from finger and enters finger detecting position；Finger detecting position 3 with
A frosted glass scatter plate 2 is placed between infrared light supply module 1, light infrared light is scattered by frosted glass, forms uniform fold in hand
Refer to the infrared light on surface；Electrostatic energy collector 4 is located at the both ends below finger detecting position；Two electrostatic energy collectors 4
One piece of transparent glass 8 of centre covering；The lower section of transparent glass 8 is the optical cavity 9 of closing；Infrared image acquisition device 5 is positioned over housing
Bottom in 13, and one layer of infrared fileter 6 is covered on its surface, for filtering environmental light and veiling glare；Power supply module 10, place
Reason device 11 and memory 12 are located on the inside of the shell wall of housing 13.
As shown in Fig. 2 infrared light supply module 1, electrostatic energy collector 4, infrared image acquisition device 5, power supply module 10, place
Connected between reason device 11 and memory 12 by electric connection mode.Power supply module 10 respectively with infrared light supply module 1, electrostatic energy
Collector 4, infrared image acquisition device 5, processor 11 and memory 12 electrically connect；Other processor 11 is gone back and infrared image acquisition
Device 5 and memory 12 electrically connect.
Fig. 3 is the structural representation of electrostatic energy collector of the present utility model, including exports negative electrode 14, polytetrafluoroethyl-ne
Alkene film 15, output positive electrode 16 and support block 17.
Output negative electrode 14 and output positive electrode 16 are made up of metallic film；There is nanometer the lower section of polytetrafluoroethylene film 15
The array of cylinder 18；The material of support block 17 is SU-8, connection polytetrafluoroethylene film 15 and output positive electrode 16, and both are divided
Open, the array of nm cylinder 18 does not contact with output positive electrode 16.Export negative electrode 15 and output positive electrode 16 wire and power supply
Module 10 electrically connects, respectively as positive electrode and negative electrode.
Further, polytetrafluoroethylene film 15 has flexible feature, when applying pressure above it, polytetrafluoroethyl-ne
Alkene film 15 is bent so that the array of nm cylinder 18 contacts with output positive electrode 16；When pressure is removed in release, polytetrafluoroethylene (PTFE)
Film 15 returns to original state, i.e. polytetrafluoroethylene film 15 and output positive electrode 16 separates.
The working method of electrostatic energy collector 4 is：Under original state, i.e. the top of polytetrafluoroethylene film 15 is pressed without application
During power, polytetrafluoroethylene film 15 separates with output positive electrode 16, and both do not have electric charge, output negative electrode 14 and output positive electrode
16 do not have voltage output；When the top of polytetrafluoroethylene film 15 applies pressure, polytetrafluoroethylene film 15 and output positive electrode
16 contacts, negative electrical charge is produced inside polytetrafluoroethylene film 15, and positive charge is produced inside output positive electrode 16, and outwards
Portion's output pulse width is hundreds of ms, voltage peak reaches hundreds of V pulse voltage.
Fig. 4 is that a kind of self-powered based on electrostatic energy collection refers to the working timing figure of vein recognition system, below knot and
Fig. 4 describes working method of the present utility model in detail.
The step of specific works mode, is as follows：
Step S100：Apply pressure, electrostatic when finger to be measured stretches into finger detecting position 3, and to electrostatic energy collector 4
It is T that energy collecting device 4, which produces pulsewidth,6-T1Voltage pulse；
Step S101：Power supply module 10 receives the voltage pulse of the output of electrostatic energy collector 4, in T1~T6Moment is in
Working condition；
Step S102：Processor 11 is in T2The electric energy that reception supplies to power supply module 10 is in running order；
Step S103：Processor 11 is in T3Moment sends instruction to power supply module 10, respectively to infrared light supply module 1 and red
Outer image acquisition device 5 is powered；
Step S104：Processor 11 is in T4Moment sends instruction to power supply module 10, cut-out infrared light supply module 1 and infrared
The power supply of image acquisition device 5, and memory 12 is powered simultaneously；
Step S105：Processor 11 is in T4~T5Refer to intravenous data to the user in memory 12 in moment to be read out；
Step S106：Processor 11 is in T5Moment sends instruction to power supply module 10, cuts off the power supply of memory 12；
Step S107：Processor 11 is from T5Moment, which proceeds by, refers to vein image identification, and in T6Completed to refer to vein before moment
Identify image work；
Step S108：In T6After moment, system cut-off, the detection of next finger to be measured is waited.
Embodiment of the present utility model is elaborated above.But the utility model is not limited to above-mentioned implementation
Mode, in art those of ordinary skill's possessed knowledge, the utility model ancestor can also not departed from
Made a variety of changes on the premise of purport.
Claims (5)
1. a kind of self-powered based on electrostatic energy collection refers to vein recognition system, including the inspection of housing, infrared light supply module, finger
Location, infrared image acquisition device, power supply module, memory and processor, the finger detecting position are that the finger on housing stretches into
Hole；The infrared light supply module is located at the top of finger detecting position；The infrared image acquisition device is located at below finger detecting position
Housing bottom；The power supply module, memory and processor be arranged on inner walls on, power supply module respectively with processor,
Infrared light supply module, infrared image acquisition device and memory electrical connection；The processor and infrared image acquisition device and memory
Electrical connection, it is characterised in that also include being used for the electrostatic energy collector for system power supply, the electrostatic energy collector is located at
The both ends of finger detecting position.
2. a kind of self-powered based on electrostatic energy collection as claimed in claim 1 refers to vein recognition system, it is characterised in that
The electrostatic energy collector includes upper and lower two layers, and upper strata is made up of the polytetrafluoroethylene film of flexibility, and its back side covers one layer
Metallic film；Lower floor is made up of metallic film；The double layer of metal film up and down is electrically connected with wire with power supply module respectively.
3. a kind of self-powered based on electrostatic energy collection as claimed in claim 2 refers to vein recognition system, it is characterised in that
The polytetrafluoroethylene film includes substrate and nm cylinder array.
4. a kind of self-powered based on electrostatic energy collection as claimed in claim 2 refers to vein recognition system, it is characterised in that
Two layers of edge up and down of electrostatic energy collector connector made of SU-8 materials connects, and by upper and lower two separate.
5. a kind of self-powered based on electrostatic energy collection as claimed in claim 1 refers to vein recognition system, it is characterised in that
The housing also includes the optical cavity of a closing, and finger detecting position is located at the top of the optical cavity, finger detecting position and the light
Kept apart between chamber with one piece of transparent glass；The infrared image acquisition device is arranged on the bottom of the optical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277715.2U CN206849034U (en) | 2016-11-26 | 2016-11-26 | A kind of self-powered based on electrostatic energy collection refers to vein recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277715.2U CN206849034U (en) | 2016-11-26 | 2016-11-26 | A kind of self-powered based on electrostatic energy collection refers to vein recognition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206849034U true CN206849034U (en) | 2018-01-05 |
Family
ID=60789392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277715.2U Expired - Fee Related CN206849034U (en) | 2016-11-26 | 2016-11-26 | A kind of self-powered based on electrostatic energy collection refers to vein recognition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206849034U (en) |
-
2016
- 2016-11-26 CN CN201621277715.2U patent/CN206849034U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20181126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |