CN203192001U - Finger vein collecting device - Google Patents
Finger vein collecting device Download PDFInfo
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- CN203192001U CN203192001U CN 201320140358 CN201320140358U CN203192001U CN 203192001 U CN203192001 U CN 203192001U CN 201320140358 CN201320140358 CN 201320140358 CN 201320140358 U CN201320140358 U CN 201320140358U CN 203192001 U CN203192001 U CN 203192001U
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- finger
- finger vena
- chip
- finger vein
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Abstract
Provided is a finger vein collecting device, which comprises a housing whose middle part is equipped with a finger hole, and a finger vein collecting window, a finger vein image collecting unit and a data transmission connecting base arranged in the housing. The finger vein collecting window is a groove arranged opposite to the finger hole; the finger vein image collecting unit comprises a CMOS sensor arranged on an image receiving surface in the housing, a main board, i.e., a circuit control module, and an opto-mechanical imaging system, wherein the circuit control module is of small package and comprises a master control chip, and a storage unit chip, a crystal oscillation circuit, an encrypted chip and a voltage reducing integrated circuit respectively connected with the master control chip, and an illumination unit equipped with a near infrared light irradiating source and a lightness adjusting unit. The finger vein collecting device is characterized in that the near infrared light irradiating source includes two near-infrared LED groups respectively mounted under two sides of the finger vein collecting window. The finger vein collecting device can substantially reduce module volume, decrease system cost, and is convenient to carry, and collected finger vein images are clearer.
Description
Technical field
The utility model relates to method or the device that the applying electronic circuit carries out bio-identification, particularly relates to a kind of finger vena harvester.
Background technology
Fingerprint recognition is based on the outer layer feature of somatic fingerprint, is difficult to that the related personnel is forged fingerprint on residual smooth object surface and carries out false proofly, has potential potential safety hazard.And finger vena is positioned at below the human epidermal, almost can not forge, and vein is identified as emerging biological identification technology, and security is very high, can not lose, can be not stolen, and memoryless password burden.The applicant's the CN102609691A of patent formerly disclosed " a kind of finger vena harvester ", and patent " a kind of finger vena collection and recognition device " (number of patent application: the finger vena collector that 201320039673.9) relates to formerly, be arranged in the housing, it comprises the finger vena acquisition window, the finger vein image acquisition unit, and data transmission Connection Block, it is characterized in that: described housing middle part is provided with finger hole, the position relative with finger hole is the finger presses face in housing, described finger presses face is the Baltimore groove as the finger vena acquisition window, and the size of finger vena acquisition window is greater than 10.0mm * 25.0mm; Described finger vein image acquisition unit comprises complementary metal oxide semiconductor (CMOS) (the Complementary Metal-Oxide-Semiconductor that is arranged on collection image on the interior image receiving plane of housing, initialism is CMOS) sensor, mainboard are the circuit control module, and the optical machine imaging system; Described cmos sensor is that resolution is the color cmos sensor of 300,000 pixels; The circuit control module that described circuit control module is little encapsulation, comprise that the control cmos sensor is finished the main control chip of acquisition of image data, the storage unit chip that is connected with main control chip respectively, provide the crystal oscillating circuit of clock signal to main control chip, encryption chip, step-down integrated circuit, and lighting unit; Described lighting unit is the near infrared light source that is provided with the brightness adjustment unit, described near infrared light source is that one group of wavelength is near-infrared luminous diode (the Light Emitting Diode of 850nm, initialism is LED), be arranged in the housing, over against by directly over picker's the finger vena acquisition window; Described optical machine imaging system is lens combination, be arranged on the housing middle part, it comprises that complying with light path is installed in infrared fileter under the finger vena acquisition window, is arranged on plane mirror face and plano-convex lens under the described infrared fileter, described plane mirror face is of a size of 21mm * 27mm, with surface level angle at 45; Described data transmission Connection Block is USB (universal serial bus) (Universal Serial Bus, initialism the are USB) Connection Block that comprises the static electrification protection.This utility model adopts modular design, its optical machine imaging system has adopted reasonable light source design, reduced length, can use the cheap non-professional camera lens, the circuit control module adopts little encapsulation, overcome the existing bulky defective of finger vena harvester of the same type, greatly reduce system cost, and be easy to carry, can also unite with computing machine and be used to complete the collection of user's finger vena, finger vena comparison, abnormal alarm, control signal output function, significantly improve finger vena acquisition rate and accuracy of identification.But its lighting unit is arranged in the housing over against by directly over picker's the finger vena acquisition window, makes that finger vena acquisition module volume is bigger than normal and the module profile is not attractive in appearance, and the finger venous image that collects owes clear.
Summary of the invention
Technical problem to be solved in the utility model is that (number of patent application: further improvement 201320039673.9) provides a kind of harvester of finger vena for the CN102609691A of patent formerly " a kind of finger vena harvester " to the applicant and " a kind of finger vena collection and recognition device ".
Technical matters of the present utility model is solved by the following technical programs.
This finger vena harvester; comprise that the middle part is provided with the housing of finger hole; be arranged on the finger vena acquisition window in the described housing; the finger vein image acquisition unit; and data transmission Connection Block; described finger vena acquisition window is Baltimore groove; be arranged on the position relative with described finger hole; as the finger presses face; the light of gathering finger venous image information is presented on the image receiving plane; described finger vein image acquisition unit comprises the cmos sensor that is arranged on collection image on the interior image receiving plane of housing; mainboard is the circuit control module; and optical machine imaging system; the circuit control module that described circuit control module is little encapsulation; comprise and control the main control chip that cmos sensor is finished acquisition of image data; the storage unit chip that is connected with described main control chip respectively; the crystal oscillating circuit of clock signal to main control chip is provided; encryption chip; the step-down integrated circuit; and the lighting unit that is provided with near infrared light source and brightness adjustment unit; described main control chip is used for the finger vena collection; finger venous image is proofreaied and correct; data communication and output control; described storage unit chip is used for the memory function file; in order to finish registration and identification after the collection; described crystal oscillating circuit is used for providing clock signal to main control chip; described encryption chip is used for downloading own software algorithm and code; to being provided comprehensive by picker's significant data; the protection of high degree of safety; safeguard self rights and interests; avoid software piracy; described step-down integrated circuit is used for and will provides power supply to main control chip and cmos sensor after the power supply step-down from the data transmission Connection Block; described lighting unit is used for the near infrared light towards described finger vena acquisition window transmission finger, and described brightness adjustment unit is adjusted the brightness near infrared light source based on the calibration curve that is used for automatic exposure of described storage unit chip-stored.
The characteristics of this finger vena harvester are:
Described near infrared light source is two groups of near-infrared LEDs that are installed in described finger vena acquisition window down either side respectively.
Technical matters of the present utility model is solved by following further technical scheme.
The size of described finger vena acquisition window is greater than 10.0mm * 25.0mm, and convenient finger stretches into and presses.
Two groups of near-infrared LEDs of described finger vena acquisition window down either side are that emission wavelength is the near-infrared LED of 850nm, and wherein the emission angle of one of a side-lower group of near-infrared LED is 60 °, and the emission angle of one group of near-infrared LED of opposite side below is 120 °.
Described cmos sensor is the cmos sensor of at least 8.215 ten thousand pixels, image resolution ratio is at least 500dpi, meet (the Federal Bureau of Investigation of Chinese public security department and FBI, initialism is FBI) about reaching the requirement that image resolution ratio is 500dpi, be used for gathering finger venous image.
Described optical machine imaging system is lens combination, be arranged on the housing middle part, it comprises that complying with light path is installed in infrared fileter under the finger vena acquisition window, be arranged on and make volume plane mirror face and the lens combination of miniaturization more under the described infrared fileter, described plane mirror face and surface level angle at 45, light is accurately reflexed in the lens combination of placing perpendicular to the bottom surface, infrared fileter in the described optical machine imaging system, the spacing of plane mirror face and lens combination is determined by the picture quality that requires, the near infrared light of the transmission finger of described lighting unit emission enters lens combination through the reflection of plane mirror face, refraction is advanced on the photosensitive array of cmos sensor of described finger vein image acquisition unit again, convert the finger venous image that receives to electric signal output by described circuit control module, gather finger venous image.
Described data transmission Connection Block is the general-purpose serial bus USB Connection Block that comprises the static electrification protection; be used for uniting use with computing machine; to finish functions such as the collection of user's finger vena, finger vena comparison, abnormal alarm, control signal output, effectively improve finger vena acquisition rate and accuracy of identification.
Technical matters of the present utility model is solved by following further technical scheme again.
Preferably, described main control chip is that the model that company limited of Z-Star Microelectronics produces is the main control chip of VC0353TLNB, be provided with finger vena collecting unit, data communication unit, data storage cell and output control unit, be used for realizing finger vena collection, finger venous image correction, data communication and output control.
Described storage unit chip is the storage unit chip that stores for the calibration curve of automatic exposure.
Preferably, described storage unit chip is that the model that Taiwan Eon Silicon Solution Inc. (Eon Silicon Solution Inc.) produces is the storage chip of EN25F10, is controlled by described main control chip.
Preferably; described encryption chip is that the model that Shenzhen SDMC Technology Co., Ltd. produces is the encryption chip of DM2016N, is used for downloading own software algorithm and code, provides protection comprehensive, high degree of safety to user's significant data; safeguard self rights and interests, avoid software piracy.
Preferably, described cmos sensor is that the model that U.S. Aptina company produces is Video Graphics Array (the Video Graphics Array of MT9V117, initialism is VGA) the color cmos sensor, provide clock signal, reset signal, synchronizing signal and I2C signal to control by main control chip, the data that collect directly are sent to described main control chip.
Described plane reflection minute surface is of a size of 21mm * 27mm.
The beneficial effect that the utility model is compared with the prior art is:
The near infrared light source of lighting unit is two groups of near-infrared LEDs installing respectively in finger vena acquisition window down either side, can significantly reduce the module volume, reduces system cost, be more convenient for carrying, and the finger venous image that collects is more clear.
Description of drawings
Fig. 1 is the composition block scheme of the utility model embodiment;
Fig. 2 is the index path of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described.
A kind of finger vena harvester shown in Fig. 1～2 comprises that the middle part is provided with the housing of finger hole, is arranged on finger vena acquisition window 13, finger vein image acquisition unit in the housing, and data transmission Connection Block 6.
Finger vena acquisition window 13 is Baltimore groove, as the finger presses face, is arranged on the position relative with finger hole, and size is greater than 10.0mm * 25.0mm, and convenient finger stretches into and presses, and the light of gathering finger venous image information is presented on the image receiving plane.
The finger vein image acquisition unit comprises that being arranged on cmos sensor 2, the mainboard of gathering image in the housing on the image receiving plane is the circuit control module, and optical machine imaging system, the circuit control module is the circuit control module of little encapsulation, comprise that controlling cmos sensor 2 finishes the main control chip 7 of acquisition of image data, the storage unit chip 10 that is connected with main control chip 7 respectively, the crystal oscillating circuit 5 of clock signal to main control chip 7, encryption chip 1, step-down integrated circuit 11 are provided, and lighting unit 12.
Cmos sensor 2 is that the model that U.S. Aptina company produces is the VGA color cmos sensor of MT9V117, be used for gathering finger venous image, image resolution ratio is at least 500dpi, meet that Chinese public security department is relevant with U.S. FBI must to reach the requirement that image resolution ratio is 500dpi, provide clock signal, reset signal, synchronizing signal and I by main control chip 7
2The C signal is controlled, and the data that collect directly are sent to main control chip 7.
Main control chip 7 is that the model that company limited of Z-Star Microelectronics produces is the main control chip of VC0353TLNB, be provided with finger vena collecting unit, data communication unit, data storage cell and output control unit, be used for realizing finger vena collection, finger venous image correction, data communication and output control.
Storage unit chip 10 is that the model that Taiwan Eon Silicon Solution Inc. produces is the storage chip of EN25F10, controlled by main control chip 7, store the calibration curve for automatic exposure, be used for the memory function file, in order to finish registration and identification after the collection.
Crystal oscillating circuit 5 is used for providing clock signal to main control chip.
Encryption chip 1 is that the model that Shenzhen SDMC Technology Co., Ltd. produces is the encryption chip of DM2016N; be used for downloading own software algorithm and code; to protection comprehensive, high degree of safety is provided by picker's significant data, safeguard self rights and interests, avoid software piracy.
Step-down integrated circuit 11 is used for will be from providing power supply to main control chip 7 and cmos sensor 2 after the power supply step-down of data transmission Connection Block 6.
Lighting unit 12 comprises near infrared light source 4 and brightness adjustment unit, near infrared light source 4 is near-infrared LEDs (accompanying drawing does not draw) that to be installed in two groups of emission wavelengths of finger vena acquisition window 13 down either side respectively be 850nm, wherein the emission angle of one of a side-lower group of near-infrared LED is 60 °, the emission angle of one group of near-infrared LED of opposite side below is 120 °, be used for the infrared-ray towards finger vena acquisition window 13 transmissions finger, the brightness adjustment unit is adjusted the brightness near infrared light source 4 based on the calibration curve that is used for automatic exposure of storage unit chip 10 storages.
The optical machine imaging system is lens combination, be arranged on the housing middle part, it comprises that complying with light path is installed in infrared fileter 9 under the finger vena acquisition window 13, be arranged on and make volume plane mirror face 8 and the lens combination 3 of miniaturization more under the infrared fileter 9, plane mirror face 8 is of a size of 21mm * 27mm, with surface level angle at 45, light is accurately reflexed in the lens combination 3 of placing perpendicular to the bottom surface, infrared fileter 9 in the optical machine imaging system, the spacing of plane mirror face 8 and lens combination 3 is determined by the picture quality that requires, the near infrared light of the transmission finger of lighting unit 12 emissions enters lens combination 3 through 8 reflections of plane mirror face, refraction is advanced on the photosensitive array of cmos sensor 2 again, convert the finger venous image that receives to electric signal output by the circuit control module, gather finger venous image.
Data transmission Connection Block 6 is the USB Connection Blocks that comprise the static electrification protection; be used for uniting use with computing machine; to finish functions such as the collection of user's finger vena, finger vena comparison, abnormal alarm, control signal output, effectively improve finger vena acquisition rate and accuracy of identification.
The course of work that this embodiment is carried out the finger vena collection is as follows:
The near infrared light biosome of near infrared light source 4 emissions is by the finger vena that is pressed in finger vena acquisition window 13, the finger vena transmitted light reflects on the photosensitive array of cmos sensor 2 into through the optical machine imaging system, convert the finger venous image that receives to electric signal output by the circuit control module, finish the collection of finger venous image.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of submitting to.
Claims (10)
1. finger vena harvester, comprise that the middle part is provided with the housing of finger hole, be arranged on the finger vena acquisition window in the described housing, the finger vein image acquisition unit, and data transmission Connection Block, described finger vena acquisition window is Baltimore groove, be arranged on the position relative with described finger hole, described finger vein image acquisition unit comprises the complementary metal oxide semiconductor (CMOS) cmos sensor that is arranged on the interior image receiving plane of housing, mainboard is the circuit control module, and optical machine imaging system, the circuit control module that described circuit control module is little encapsulation, comprise main control chip, the storage unit chip that is connected with described main control chip respectively, crystal oscillating circuit, encryption chip, the step-down integrated circuit, and the lighting unit that is provided with near infrared light source and brightness adjustment unit, it is characterized in that:
Described near infrared light source is two groups of near-infrared LEDs that are installed in described finger vena acquisition window down either side respectively.
2. finger vena harvester as claimed in claim 1 is characterized in that:
The size of described finger vena acquisition window is greater than 10.0mm * 25.0mm.
3. finger vena harvester as claimed in claim 1 or 2 is characterized in that:
Two groups of near-infrared LEDs of described finger vena acquisition window down either side are that emission wavelength is the near-infrared LED of 850nm, and wherein the emission angle of one of a side-lower group of near-infrared LED is 60 °, and the emission angle of one group of near-infrared LED of opposite side below is 120 °.
4. finger vena harvester as claimed in claim 3 is characterized in that:
Described cmos sensor is the cmos sensor of at least 8.215 ten thousand pixels, and image resolution ratio is at least 500dpi.
5. finger vena harvester as claimed in claim 4 is characterized in that:
Described optical machine imaging system is lens combination, be arranged on the housing middle part, it comprises the infrared fileter that is installed under the finger vena acquisition window, be arranged on plane mirror face and lens combination under the described infrared fileter, described plane mirror face and surface level angle at 45, the spacing of infrared fileter, plane mirror face and lens combination in the described optical machine imaging system is determined by the picture quality that requires.
6. finger vena harvester as claimed in claim 5 is characterized in that:
Described data transmission Connection Block is the general-purpose serial bus USB Connection Block that comprises the static electrification protection.
7. finger vena harvester as claimed in claim 6 is characterized in that:
Described main control chip is that the model that company limited of Z-Star Microelectronics produces is the main control chip of VC0353TLNB, is provided with finger vena collecting unit, data communication unit, data storage cell and output control unit.
8. finger vena harvester as claimed in claim 7 is characterized in that:
Described storage unit chip is that the model that Taiwan Eon Silicon Solution Inc. produces is the storage chip of EN25F10;
Described encryption chip is that the model that Shenzhen SDMC Technology Co., Ltd. produces is the encryption chip of DM2016N.
9. finger vena harvester as claimed in claim 8 is characterized in that:
Described cmos sensor is that the model that U.S. Aptina company produces is the Video Graphics Array VGA color cmos sensor of MT9V117.
10. finger vena harvester as claimed in claim 9 is characterized in that:
Described plane reflection minute surface is of a size of 21mm * 27mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140358 CN203192001U (en) | 2013-03-26 | 2013-03-26 | Finger vein collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140358 CN203192001U (en) | 2013-03-26 | 2013-03-26 | Finger vein collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192001U true CN203192001U (en) | 2013-09-11 |
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ID=49108844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320140358 Expired - Lifetime CN203192001U (en) | 2013-03-26 | 2013-03-26 | Finger vein collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989332A (en) * | 2015-02-11 | 2016-10-05 | 深圳市维亿魄科技有限公司 | Mouse with reflective human finger vein recognition |
| CN108256416A (en) * | 2017-11-30 | 2018-07-06 | 北京集创北方科技股份有限公司 | Biological characteristic detection method and system |
-
2013
- 2013-03-26 CN CN 201320140358 patent/CN203192001U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989332A (en) * | 2015-02-11 | 2016-10-05 | 深圳市维亿魄科技有限公司 | Mouse with reflective human finger vein recognition |
| CN108256416A (en) * | 2017-11-30 | 2018-07-06 | 北京集创北方科技股份有限公司 | Biological characteristic detection method and system |
| CN108256416B (en) * | 2017-11-30 | 2021-04-02 | 北京集创北方科技股份有限公司 | Biological characteristic detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180911 Address after: 523710 26 Pingshan 188 Industrial Avenue, Tangxia Town, Dongguan, Guangdong Patentee after: ZKTECO Co.,Ltd. Address before: 518000 Guangdong Shenzhen Longgang District Bantian five and Xinhua new industrial zone, central control building 1 to nine floors. Patentee before: SHENZHEN ZK SOFTWARE BIOMETRIC IDENTIFICATION TECHNOLOGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523710, 26, 188 Industrial Road, Pingshan Town, Guangdong, Dongguan, Tangxia Patentee after: Entropy Technology Co.,Ltd. Address before: 523710, 26, 188 Industrial Road, Pingshan Town, Guangdong, Dongguan, Tangxia Patentee before: ZKTECO Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.32, Pingshan Industrial Road, Tangxia Town, Dongguan City, Guangdong Province, 523710 Patentee after: Entropy Technology Co.,Ltd. Address before: 523710 26 Pingshan 188 Industrial Avenue, Tangxia Town, Dongguan, Guangdong Patentee before: Entropy Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |