CN206162576U - Radio frequency type finger vein indicates tattooing part identification system for examination - Google Patents
Radio frequency type finger vein indicates tattooing part identification system for examination Download PDFInfo
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- CN206162576U CN206162576U CN201620702140.8U CN201620702140U CN206162576U CN 206162576 U CN206162576 U CN 206162576U CN 201620702140 U CN201620702140 U CN 201620702140U CN 206162576 U CN206162576 U CN 206162576U
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Abstract
The utility model provides a radio frequency type finger vein indicates tattooing part identification system for examination, including treater, card reader, finger vein discernment appearance and fingerprint identification ware, card reader, finger vein discernment appearance and fingerprint identification ware respectively with processor signals connects. Radio frequency type finger vein indicates tattooing part identification system for examination, use through the cooperation of finger vein discernment appearance and card reader, realized live body nature, uniqueness and the accuracy of examinee's discernment since human finger vein be difficult to steal, be difficult to to forge, not influenced by external factors and characteristic that applicable to the crowd is extensive, when having avoided the examination for examining the phenomenon, the fairness and the security of taking an examination has improved.
Description
Technical field
The utility model belongs to electronic information technical field, and more particularly, to a kind of examination RF-type vein fingerprint body is referred to
Part identifying system.
Background technology
First, RFID system most basic in radio RF recognition technology (RFID) is by radio-frequency card, reader, the part of antenna three
Composition.
Radio-frequency card：It is made up of coupling element and chip, each label has unique electronic code, is attached to object subscript
Know destination object；
Reader：The equipment for reading (can also write sometimes) label information, may be designed as hand-held or fixed；
Antenna：Radiofrequency signal is transmitted between label and reader.
The advantage of RFID：1st, read convenient and swift；2nd, data capacity is big；3rd, label data dynamic can be changed；4th, preferably
Security；5th, recognition speed is fast；6th, long service life, applied range；7th, dynamic realtime communication.
2nd, the fingerprint in fingerprint identification technology refers to the convex recessed uneven streakline for producing of the positive surface skin of the finger tips of people,
The different line type of the regular arrangement form of streakline.The starting point of streakline, terminal, binding site and bifurcation, the referred to as details of fingerprint
Characteristic point.
Fingerprint recognition, is the feature for passing through the image that takes the fingerprint by computer, and according to specific identification alignment algorithm, it is right
Fingerprint image to be identified provides the technology for whether coming from same fingerprint.Technology is related to image procossing, pattern-recognition, computer and regards
Numerous subjects such as feel, mathematical morphology, wavelet analysis.
The advantage of fingerprint recognition：With unchangeable property, uniqueness and convenience.
Fingerprint recognition shortcoming：Fingerprint lines is unclear because finger rubs for a long time for partial mass, causes fingerprint recognition difficult.
Fingerprint is vulnerable to the impact of extraneous spot ambient moisture levels and can not be correctly validated.Fingerprint due to its external characteristic, and
Finger often with various article contacts, be easily stolen and forge, fingerprint trace there is a possibility that to be used to replicate fingerprint.Market
On had the gullible fingerprint recognition system of out-tricking of many fingerprint films.
3rd, refer to the finger vena identification in vein identification technology, be a kind of advanced biology interior feature identification technique.It
Identification is carried out using the vein distributed image in finger.
The technology shoots the image of finger vena by near infrared light finger, reuses specific algorithm from image
Characteristic is extracted, is stored the characteristic of extraction during registration, by the characteristic extracted and storage during identification
Characteristic is compared, and the result that identification is compared is provided, so as to reach the function of identification.What is flowed in finger vena is quiet
Hemoglobin in arteries and veins blood can absorb near infrared light, and skin, muscle, bone etc. do not absorb near infrared light, thus hand
Finger can present the image of vein distribution under the irradiation of infrared light.
The advantage of finger vena and technology of identification：Uniqueness, stability, accuracy, live body, it is difficult to steal, be difficult to puppet
Make, anti-interference, the security that is suitable for crowd's popularity, uses.
Uniqueness：The form of finger vena is to develop coefficient result by the DNA and finger of human body.Same people is not
It is also different with finger vena form, even if the finger vena form of the identical twin with identical DNA is also differed.
Stability：Adult's finger vein grain is constant throughout one's life.Once research is tracked 6000 finger venas 30 years,
Still keep stablizing constant.
Accuracy：Due to the complicated otherness of finger venous image imaging, identifying system misconnection is general by non-registered finger
Rate is below 0.0001%.The safe class of identification is high.
Live body, it is difficult to steal：Finger vena is distributed in below skin, and shape is intricate, and finger departs from human body
Afterwards, the blood characteristics in vein blood vessel can change, and causing can not pass through the authentication of hand vein recognition harvester, therefore difficult
To steal.
It is difficult to forge：On the one hand harvester needs to sense that there is the object into pickup area finger characteristic just can open
Dynamic gatherer process, is on the other hand imaged according to the special properties of venous blood.Therefore, it is difficult to forge out with sensing identical with finger
The deception thing of characteristic, and the deception thing can have very much like imaging with specific real finger under harvester.
Anti-interference：Do not affected by finger surface spot, moist degree, the extraneous circumstance such as cast off a skin, disease or motion etc.
Internal factor will not also change veinprint.
Applicable crowd's popularity：Adult crowd, can use finger vein identification technology.
The security for using：The light of irradiation finger is near infrared light, and its wavelength is close to visible ray.Know as vein
Other light source, near infrared light will not produce harm to human body.
The shortcoming of finger vena and technology of identification：High cost.
4th, the bar code in bar code identification technology is by width multiple secret notes not etc. and blank, according to certain volume
A kind of regularly arranged, the automatic identification technology of the graphical identifier to express a group information of code, it is collection coding, printing, knows
Not, data acquisition and processing (DAP) new technique.
The advantage of bar code：High input speed, collection contain much information, degree of accuracy height, low cost, highly reliable, flexible reality
With.
Bar code identification both can be used alone as a kind of means of identification, it is also possible to and relevant identification equipment constitutes one
System realizes automatic identification, can realize automatic management to link up with other control devices.
In the market, it is commercially substantially respective about the electronic information technology product of above-mentioned several technology of identification
It is used alone in different fields, such as radio RF recognition technology is mainly recognized using all kinds of radio-frequency cards made from reading card,
Fingerprint identification technology is mainly used in the payment systems such as gate inhibition, attendance checking system, bank, refers to pole in vein identification technology application market
It is rare, gate inhibition's class product is simply manufactured experimently, bar code identification technology bar code identification technology is mainly used in the material object of numerous industries
And certificate identification.
And all kinds of national qualifying examinations of the identification high for identification requirement safe class, especially every year
The national college entrance examination for having ten million left and right examinee to participate in, there is presently no corresponding identity recognition device system product and comes out (although pole
Minority school has only using the method trial of fingerprint recognition, but can't resolve the defect of fingerprint recognition).
What the Ministry of Education of the state 2016 year 2 month promulgated on the 26th《The Ministry of Education is with regard to carrying out ordinary higher learning school's Enrollment in 2016
Notify》Teaching [2016] 3 the article pointed out and " improve examination security system, local education administrative departments at different levels, entrance examination machine
Structure and examination point school will add regular maintenance and the upgrading of strong normalization examination point, it is ensured that standardization examination point various kinds of equipment is normally run,
Develop skill prevention ability.Will be with reference to various places reality, using the registration confirmation of China second-generation identity card scene, collection in worksite photo and fingerprint
Or refer to the biological characteristics such as vein, enter row information in time and the measure such as compare to prevent and impersonate." this further illustrates the knowledge of development and production identity
The importance and urgency of other apparatus system product.
The content of the invention
In view of this, the utility model is directed to a kind of examination RF-type and refers to vein fingerprint personal identification system, will
Different technology of identification combine, and learn from other's strong points to offset one's weaknesses, and are escort for college entrance examination by multimodal Biometrics.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of examination RF-type refers to vein fingerprint personal identification system, including processor, card reader, refers to hand vein recognition instrument
And Fingerprint Identification Unit；
The card reader, refer to that hand vein recognition instrument and Fingerprint Identification Unit are connected respectively with the processor signal.
Further, the processor includes coagulation device and secondary processor, and the card reader includes one-level Card Reader
Device and two grades of card reader, radio communication between the coagulation device and secondary processor, the secondary processor at least one,
The one-level card reader is connected with the coagulation device signal, and two grades of card reader are corresponded with the secondary processor
And induction signal is connected, the finger hand vein recognition instrument corresponds with the secondary processor and induction signal is connected, the finger
Line identifier corresponds with the secondary processor and induction signal is connected.
Further, the examination RF-type refers to that vein fingerprint personal identification system also includes barcode recognizer, institute
State barcode recognizer to correspond with the secondary processor and be connected induction signal.
Further, the examination RF-type refers to that vein fingerprint personal identification system also includes result suggestion device, institute
State the number of the number of result suggestion device and the coagulation device and secondary processor and identical, respectively with the one-level at
Reason device and the connection of secondary processor signal.
Further, the result suggestion device includes LED display or LCDs.
Further, the result suggestion device includes voice module.
Further, the front end of the card reader offers a card slot, the card slot side opening.
Further, the barcode recognizer is installed in one end of two grades of card reader, and the barcode recognizer
Identification end be located at outside.
Further, the processor includes key circuit, data processing module, storage module and wireless communication module,
The key circuit, storage module and wireless communication module are connected respectively with the data processing module signal, at the data
Reason module respectively with the card reader, refer to hand vein recognition instrument, Fingerprint Identification Unit, barcode recognizer and result suggestion device signal
Connection.
Further, the secondary processor also includes shell, and the shell is in rectangular-shape, the secondary processor
Key circuit is located at the center in the case nose face, two grades of card reader, refers to hand vein recognition instrument, Fingerprint Identification Unit, bar shaped
Code identifier and result suggestion device are installed on the front end face of the shell around the secondary processor.
Relative to prior art, examination RF-type described in the utility model refers to that vein fingerprint personal identification system has
Following advantage：
(1) examination RF-type described in the utility model refers to vein fingerprint personal identification system, by referring to hand vein recognition
Using cooperatively for instrument and card reader, realizes live body, uniqueness and the accuracy of examinee's identification, because human body refers to the difficulty of vein
To steal, it is difficult to forge, by extraneous factor do not affected and be suitable for the extensive characteristic of crowd, it is to avoid impersonating during examination is existing
As improve the fairness and security of examination.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is that the examination RF-type described in the utility model embodiment refers to that vein fingerprint personal identification system principle is illustrated
Figure；
Fig. 2 is the processor principle schematic described in the utility model embodiment.
Description of reference numerals：
2- processors；2a- coagulation devices；2b- secondary processors；21- key circuits；22- data processing modules；23-
Storage module；24- wireless communication modules；3- card reader；3a- one-level card reader；Bis- grades of card reader of 3b-；4- refers to hand vein recognition instrument；
5- Fingerprint Identification Units；6- barcode recognizers；7- result suggestion devices.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates
Or the device or element of hint indication with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the utility model.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the utility model in detail.
As shown in figure 1, the utility model includes power supply 1, processor 2, card reader 3, refers to hand vein recognition instrument 4 and fingerprint recognition
Device 5；
Card reader 3, refer to that hand vein recognition instrument 4 and Fingerprint Identification Unit are connected respectively with the signal of processor 2, power supply 1 respectively with place
Manage device 2, card reader 3 and refer to that hand vein recognition instrument 4 is electrically connected.
Processor 2 includes coagulation device 2a and secondary processor 2b, and card reader 3 includes one-level card reader 3a and two grades of readings
Card device 3b, radio communication between coagulation device 2a and secondary processor 2b, secondary processor 2b at least one, one-level card reader
3a is connected with coagulation device 2a signals, and two grades of card reader 3b correspond with secondary processor 2b and induction signal is connected, and refer to
Hand vein recognition instrument 4 corresponds with secondary processor 2b and induction signal is connected, and Fingerprint Identification Unit 5 is with secondary processor 2b one by one
Correspondence simultaneously connects to induction signal.
Coagulation device 2a and one-level card reader 3a are arranged at the gate of examination point, secondary processor 2b and with two grades at
Reason device 2b induction signal is connected two grades of card reader 3b, refer to that hand vein recognition instrument 4 and Fingerprint Identification Unit 5 have multigroup, per group by each
The invigilator personnel in examination hall hold.
One-level card reader 3a reads examinee's identity card inside information, and the information input coagulation device 2a that will be read, one-level
Processor 2a compares the examinee information for receiving with the examinee information of the coagulation device 2a memory storages, it is correct after can enter
The gate of examination point；
Examinee is found behind specified examination hall into examination point, and invigilator personnel prompting examinee carries out referring to hand vein recognition and fingerprint recognition,
Refer to hand vein recognition instrument 4 and Fingerprint Identification Unit 5 respectively by the finger vein image information and finger print information input secondary processor of identification
2b, secondary processor 2b refer to that vein image information and finger print information refer to the examinee of storage in secondary processor 2b by what is received
Vein image information and finger print information are compared, and correctly then illustrate that examinee is my reference, it is allowed to enter examination hall, improve examinee's knowledge
Other accuracy, has prevented the generation for impersonating phenomenon.
Examination RF-type refer to vein fingerprint personal identification system also include barcode recognizer 6, barcode recognizer 6 with
Secondary processor 2b is corresponded and induction signal is connected, and coordinates two grades of card reader 3b to realize to the bar code in examinee's answering card
Confirmation.
Examination RF-type refers to that vein fingerprint personal identification system also includes result suggestion device 7, as a result suggestion device 7
Number and the number of coagulation device 2a and secondary processor 2b and identical, and respectively with the coagulation device 2a and two grades at
Reason device 2b signal connections.
As a result suggestion device 7 includes LED display or LCDs, to show examinee's identification result.
Whether as a result suggestion device 7 includes voice module, to point out examinee's identity correct.
The front end of card reader 3 offers a card slot, to insert examinee's identity radio-frequency card, in order to read examinee's letter
Breath.
Barcode recognizer 6 is installed in one end of two grades of card reader 3b, and the identification end of the barcode recognizer 6 positioned at outer
Side, when the bar code on examinee's answering card is confirmed is consistent with examinee's identity, by examinee's identity radio-frequency card two grades of card reader is inserted
The card slot of 3b reads information, and by the examinee information input secondary processor 2b for reading, is then read using barcode recognizer 6
Bar code information is taken, and by the bar code information input secondary processor 2b for reading, secondary processor 2b calls secondary processor
The full detail corresponding with examinee information in radio-frequency card of storage in 2b, and the bar shaped that it is input into barcode recognizer 6
Code information is compared, and the identical bar code for then representing examinee is correct, bar code mistake that is different then representing examinee.
Processor 2 includes key circuit 21, data processing module 22, storage module 23 and wireless communication module 24, button
Circuit 21, storage module 23 and wireless communication module 24 are connected respectively with the signal of data processing module 22, data processing module 22
Respectively with card reader 3, refer to that hand vein recognition instrument 4, Fingerprint Identification Unit 5, barcode recognizer 6 and the signal of result suggestion device 7 are connected；
Key circuit 21 is to the input operation information of data processing module 22, you can realize the various functions to processor 2
Restriction, typing of data etc., in data inputting, the peration data processing module 22 of key circuit 21 passes through wireless communication module 24
It is connected with host computer signal, receives the logging data in host computer, and stores data in storage module 23, key circuit 21
Can be reciprocity to check, send or compare by recalls information in storage module 23 with peration data processing module 22；
Data processing module 22 receives card reader 3, refers to hand vein recognition instrument 4, Fingerprint Identification Unit 5, the knowledge of barcode recognizer 6
Other information, and by calling corresponding informance to compare in storage module 23, and by comparison result input results suggestion device 7.
Secondary processor 2b also includes shell, and shell is in rectangular-shape, and the key circuit 21 of secondary processor 2b is positioned at outer
The center of shell front end face, two grades of card reader 3b, refers to the prompting of hand vein recognition instrument 4, Fingerprint Identification Unit 5, barcode recognizer 6 and result
Device 7 is installed on the front end face of shell around secondary processor 2b.
The utility model information flow when in use is：
1st, the typing of information：Personal information typing is carried out initially with the high advanced untouchable radio-frequency card of reliability, so
Afterwards using finger hand vein recognition instrument 4 leading in the world and Fingerprint Identification Unit 5, carry out individual and refer to vein image, fingerprint bio feature
Typing is registered, and will finally refer to that vein image, fingerprint bio feature are write in untouchable radio-frequency card, and uploads database, while
Personal information is generated by related bar code using bar code generation technique, is now issued radio-frequency card as examinee's identity documents,
Bar code is sent into into related examination hall, while the examinee information in database point examination point is input into into the storage module of coagulation device 2a
In 23, then in the storage module 23 by coagulation device 2a point of examination hall input secondary processor 2b.
2nd, information identification：During examinee's admission, the radio-frequency card held is inserted into one-level card reader 3a, one-level card reader 3a reads
Radio-frequency card data, and the data processing module 22 of coagulation device 2a is entered data into, data processing module 22 is by storage module
Call the information that relevant information reads with one-level card reader 3a to compare in 23, if identical, prove that the examinee is this examination point
Examinee, the as a result prompting of suggestion device 7 examinee can enter examination point gate, if it is different, then illustrate that examinee is not this examination point examinee, thus
Examinee's identity is recognized roughly so that examinee rapidly enters examination point；
Examinee is examination point examinee, and examinee finds specified examination hall into after examination point, before into examination hall, invigilator's personnel's prompting
Examinee carries out referring to hand vein recognition and fingerprint recognition that finger is stretched into examinee into finger hand vein recognition instrument 4 and Fingerprint Identification Unit 5 is known
Not, refer to hand vein recognition instrument 4 and Fingerprint Identification Unit 5 respectively by the finger vein image information for obtaining and finger print information input two stage treatment
The data processing module 22 of device 2b, data processing module 22 is by calling relevant information and refer to hand vein recognition instrument 4 in storage module 23
The finger print information that the finger vein image information of acquisition and Fingerprint Identification Unit 5 are obtained is compared, if identical, illustrates that the examinee is
I, illustrates examinee to impersonate if difference；
After examinee takes an examination into examination hall for me, the bar code that invigilator personnel issue can be attached on answering card, be invigilated
Hand-held two grades of card reader 3b of personnel and barcode recognizer 6, by examinee's radio-frequency card insertion card slot information, two grades of card reader are read
Then the data processing module 22 of the information input secondary processor 2b for reading is invigilated librarian use barcode recognizer 6 by 3b
Bar code information is read, bar code information is input into barcode recognizer 6 data processing module 22 of secondary processor 2b, data
Processing module 22 compares bar code information and radio frequency card information, if information is identical, illustrates that bar code is correct, if not
Together, then bar code mistake is illustrated, the identification work of examinee is completed to this.
The examination RF-type refers to vein fingerprint personal identification system, by the cooperation for referring to hand vein recognition instrument 4 and card reader 3
Use, realize live body, uniqueness and the accuracy of examinee's identification, due to human body refer to vein be difficult to steal, it is difficult to forge,
The extensive characteristic of crowd is not affected and is suitable for by extraneous factor, it is to avoid the public affairs that impersonate phenomenon, improve examination during examination
Levelling and security.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of examination RF-type refers to vein fingerprint personal identification system, it is characterised in that：Including power supply (1), processor
(2), card reader (3), refer to hand vein recognition instrument (4) and Fingerprint Identification Unit (5)；
The card reader (3), refer to that hand vein recognition instrument (4) and Fingerprint Identification Unit (5) are connected respectively with the processor (2) signal.
2. examination RF-type according to claim 1 refers to vein fingerprint personal identification system, it is characterised in that：The place
, including coagulation device (2a) and secondary processor (2b), the card reader (3) is including one-level card reader (3a) and two for reason device (2)
Level card reader (3b), radio communication between the coagulation device (2a) and secondary processor (2b), the secondary processor
(2b) at least one, the one-level card reader (3a) is connected with coagulation device (2a) signal, two grades of card reader
(3b) correspond with the secondary processor (2b) and induction signal is connected, it is described to refer to hand vein recognition instrument (4) with described two grades
Processor (2b) corresponds and induction signal is connected, and the Fingerprint Identification Unit (5) corresponds with the secondary processor (2)
And induction signal is connected.
3. examination RF-type according to claim 2 refers to vein fingerprint personal identification system, it is characterised in that：Also include
Barcode recognizer (6), the barcode recognizer (6) corresponds with the secondary processor (2) and induction signal is connected.
4. examination RF-type according to claim 2 refers to vein fingerprint personal identification system, it is characterised in that：Also include
As a result suggestion device (7), the number of the result suggestion device (7) and the coagulation device (2a) and secondary processor (2b)
Number with it is identical, and be connected with the coagulation device (2a) and secondary processor (2b) signal respectively.
5. examination RF-type according to claim 4 refers to vein fingerprint personal identification system, it is characterised in that：The knot
Fruit suggestion device (7) is including LED display or LCDs.
6. examination RF-type according to claim 4 refers to vein fingerprint personal identification system, it is characterised in that：The knot
Fruit suggestion device (7) is including voice module.
7. examination RF-type according to claim 1 refers to vein fingerprint personal identification system, it is characterised in that：The reading
The front end of card device (3) offers a card slot.
8. examination RF-type according to claim 3 refers to vein fingerprint personal identification system, it is characterised in that：The bar
Shape code identifier (6) is installed in one end of two grades of card reader (3b), and the identification end of the barcode recognizer (6) positioned at outer
Side.
9. examination RF-type according to claim 1 refers to vein fingerprint personal identification system, it is characterised in that：The place
Reason device (2) is described including key circuit (21), data processing module (22), storage module (23) and wireless communication module (24)
Key circuit (21), storage module (23) and wireless communication module (24) connect respectively with the data processing module (22) signal
Connect, the data processing module (22) respectively with the card reader (3), refer to hand vein recognition instrument (4), Fingerprint Identification Unit (5), bar shaped
Code identifier (6) and the connection of result suggestion device (7) signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702140.8U CN206162576U (en) | 2016-07-05 | 2016-07-05 | Radio frequency type finger vein indicates tattooing part identification system for examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702140.8U CN206162576U (en) | 2016-07-05 | 2016-07-05 | Radio frequency type finger vein indicates tattooing part identification system for examination |
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| Publication Number | Publication Date |
|---|---|
| CN206162576U true CN206162576U (en) | 2017-05-10 |
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ID=58646752
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| CN201620702140.8U Active CN206162576U (en) | 2016-07-05 | 2016-07-05 | Radio frequency type finger vein indicates tattooing part identification system for examination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106127186A (en) * | 2016-07-05 | 2016-11-16 | 天津金典生产力促进有限责任公司 | A kind of examination identification system |
-
2016
- 2016-07-05 CN CN201620702140.8U patent/CN206162576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106127186A (en) * | 2016-07-05 | 2016-11-16 | 天津金典生产力促进有限责任公司 | A kind of examination identification system |
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