CN113486862A - Financial security protection system based on biological identification technology - Google Patents
Financial security protection system based on biological identification technology Download PDFInfo
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- CN113486862A CN113486862A CN202110892828.2A CN202110892828A CN113486862A CN 113486862 A CN113486862 A CN 113486862A CN 202110892828 A CN202110892828 A CN 202110892828A CN 113486862 A CN113486862 A CN 113486862A
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- 210000005252 bulbus oculi Anatomy 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 210000000554 iris Anatomy 0.000 description 88
- 210000001747 pupil Anatomy 0.000 description 3
- 210000003786 sclera Anatomy 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 230000002068 genetic effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 239000000049 pigment Substances 0.000 description 1
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
- G06Q20/4014—Identity check for transactions
- G06Q20/40145—Biometric identity checks
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Abstract
The invention relates to the technical field of biological identification application. Aim at provides one kind can improve the security, realize the financial security protection system based on biological identification technique of accurate discernment, include: the iris image acquisition module, the iris image merging module, the image information extraction module, the iris information database and the iris information comparison module. According to the invention, a plurality of iris two-dimensional images are combined into a full-width iris image, the interference item image is removed, and the interference item image is filled in the complete area of the interference-free item in the image shot at the latest shooting angle, so that the integrity and the accuracy of the full-width iris image are ensured, a foundation is laid for improving the threshold of the contrast coincidence rate, realizing precise identification, facilitating the accuracy of later-stage image identification and improving the safety of the iris identification in the application of financial protection.
Description
Technical Field
The invention relates to the technical field of biological identification application, in particular to a financial security protection system based on a biological identification technology.
Background
The biometric identification technology is closely combined with high-tech means such as optics, acoustics, biosensors and the principle of biometrics through a computer, and personal identity is identified by utilizing the inherent physiological characteristics (such as fingerprints, facial images, irises and the like) and behavior characteristics (such as handwriting, voice, gait and the like) of a human body. The appearance picture of human eyes is composed of three parts of sclera, iris and pupil. The sclera is the white part of the eyeball periphery, and accounts for about 30 percent of the total area; the center of the eye is the pupil part, which accounts for about 5%; the iris is located between the sclera and the pupil and contains the most abundant textural information, accounting for 65%. In appearance, it is composed of many pits, folds, pigmented spots, etc., and is one of the most unique structures in the human body. Iris formation is determined by genetic genes, and human gene expression determines the morphology, physiology, color and overall appearance of the iris. When a person develops for about eight months, the iris develops to a sufficient size, and enters a relatively stable period. The iris topography can be maintained for decades without much change unless very rare abnormalities, physically or mentally large trauma, may cause changes in the appearance of the iris. On the other hand, the iris is externally visible, but also belongs to the internal tissue, behind the cornea. To change the appearance of the iris requires very elaborate surgery and risks impairment of vision. The highly unique, stable and unalterable nature of the iris is the material basis on which the iris can be used for identity authentication.
The traditional iris recognition adopts a single iris two-dimensional image which is independently shot as a recognition basis, namely, an iris camera captures a single iris picture of a person to be recognized, extracts iris features in the picture, and searches and compares the iris features with standard iris features stored in a database, if the feature coincidence rate of the iris features and the standard iris features reaches a threshold value, the recognition is judged to be passed, otherwise, the recognition is judged not to be passed; because this kind of mode adopts a single iris two-dimensional image as the discernment foundation, and this iris two-dimensional image can receive the influence of other interference items such as reflection of light, local shooting definition difference when shooing, leads to the distortion of iris two-dimensional image, when carrying out the contrast, in order to guarantee the discernment success rate, need generally will discern that the threshold value sets up lower, for example: the overlapping rate reaches 70 percent, 80 percent and the like. Accordingly, in this case, the possibility of misrecognition is increased. For the financial industry with higher encryption levels such as banks, securities and the like, the false identification may cause a great potential safety hazard to the fund safety of users.
Disclosure of Invention
The invention aims to provide a financial security protection system based on a biological identification technology, which can improve security and realize precise identification.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a financial security system based on biometric identification technology, comprising:
the iris image acquisition module is used for acquiring a plurality of iris two-dimensional images from a plurality of angles with eyeballs as centers;
the iris image merging module is used for eliminating interference item images in the two-dimensional images and merging the two-dimensional images; when merging processing is carried out, filling a part of interference item images which are removed by utilizing the corresponding area image in a picture with the closest shooting angle; finally, generating a full iris image;
the image information extraction module is used for extracting target iris characteristics in the full iris image;
the iris information database is used for storing standard iris images and corresponding standard iris characteristics;
the iris information comparison module is used for comparing the standard iris characteristics of the standard iris images in the iris information database with the target iris characteristics and judging the coincidence rate;
and the financial security protection module is used for encrypting the financial account and the corresponding operation and judging a verification result according to the comparison result of the iris information comparison module.
Preferably, the iris image acquisition module is including setting up the iris camera that is used for shooting the personnel eye image of waiting to discern on the base, one side that the base dorsad the eye is provided with the arc guide rail that uses the eye as the centre of a circle, and the base setting is on the arc guide rail, and constitutes sliding fit with the arc guide rail.
Preferably, the cross section of the arc-shaped guide rail is U-shaped, and arc-shaped guide grooves extending along the length direction of the arc-shaped guide rail are formed in the two outer side walls of the arc-shaped guide rail; an arc-shaped abdicating hole extending along the length direction of the arc-shaped guide rail is formed in one surface of the U-shaped bottom of the arc-shaped guide rail; an angle adjusting conveying belt is arranged in an inner cavity of the arc-shaped guide rail, is driven by an angle adjusting motor and is arranged along the length direction of the arc-shaped guide rail, and the middle section of the angle adjusting conveying belt is guided by a plurality of groups of guide supporting wheels to form an arc-shaped structure;
the base is Contraband-shaped, the inner surface of the middle section of the base is provided with a base connecting rod which penetrates through the arc-shaped abdicating hole, the inner end of the base connecting rod is provided with a base belt clamp, and the base belt clamp is clamped on the belt body of the angle adjusting conveying belt; a plurality of rotating pins are uniformly distributed on the inner surfaces of the upper side edge and the lower side edge of the base along the length direction of the arc-shaped guide groove, and the rotating pins are matched with the arc-shaped guide groove.
Preferably, the guide riding wheel is in contact with one half of the belt body of the angle adjusting conveying belt, and the base belt is clamped on the other half of the belt body of the angle adjusting conveying belt.
Preferably, the arc-shaped guide rail is installed on the connecting seat, the connecting seat is arranged on the position adjusting mechanism, and the position adjusting mechanism comprises a transverse adjusting assembly and a longitudinal adjusting assembly, wherein the transverse adjusting assembly can drive the connecting seat to perform position adjustment in the horizontal direction, and the longitudinal adjusting assembly can drive the connecting seat to perform position adjustment in the vertical direction.
Preferably, the horizontal adjusting assembly comprises a horizontal guide rail with a U-shaped section and extending along the horizontal direction, and horizontal guide grooves extending along the length direction of the horizontal guide rail are formed in two outer side walls of the horizontal guide rail; one surface of the U-shaped bottom of the horizontal guide rail is provided with a horizontal abdicating hole extending along the length direction of the horizontal guide rail; a horizontal adjusting conveying belt is arranged in the inner cavity of the horizontal guide rail, is driven by a horizontal adjusting motor and is arranged along the length direction of the horizontal guide rail;
the connecting seat is Contraband-shaped, a connecting seat connecting rod penetrating through the horizontal abdicating hole is arranged on the inner surface of the middle section of the connecting seat, a connecting seat belt clip is arranged at the inner end of the connecting seat connecting rod, and the connecting seat belt clip is clamped on the belt body of the horizontal conveying belt; the inner surfaces of the upper side edge and the lower side edge of the connecting seat are uniformly distributed with a plurality of rotating pins along the length direction of the horizontal guide groove, and the rotating pins are matched with the horizontal guide groove.
Preferably, the longitudinal adjusting assembly comprises two connecting blocks fixedly arranged at two ends of the opening side of the horizontal guide rail, vertical guide holes and threaded holes are formed in the connecting blocks respectively, guide rods and screw rods matched with each other are arranged in the guide holes and the threaded holes respectively, and the screw rods are driven by the longitudinal adjusting motor.
Preferably, the longitudinal adjusting assembly comprises two connecting blocks fixedly arranged at two ends of the opening side of the horizontal guide rail, vertical guide holes are formed in the two connecting blocks, and guide rods matched with the vertical guide holes are arranged in the guide holes;
the two iris image acquisition modules are connected through a bridging rod between two connecting blocks close to the inner sides of the horizontal guide rails of the two iris image acquisition modules; the bridge connection rod is provided with a threaded hole, a matched screw rod is matched in the threaded hole, and the screw rod is driven by a longitudinal adjusting motor.
Preferably, a light supplement lamp is arranged on the base positioned at the periphery of the iris camera.
Preferably, the light supplement lamp is an LED lamp.
The beneficial effects of the invention are concentrated and expressed as follows: the method has the advantages that the multiple iris two-dimensional images are combined into the full-width iris image, the interference item image is removed, the interference item image is filled in the complete area of the interference-free item in the image shot at the latest shooting angle, the integrity and the accuracy of the full-width iris image are guaranteed, a foundation is laid for improving the contrast coincidence rate threshold value, the precise identification is realized, the accuracy of the later-period image identification is facilitated, and the safety of the iris identification applied to the financial protection is improved.
Drawings
FIG. 1 is a schematic block diagram of the workflow of the present invention;
FIG. 2 is a top view of an iris image acquisition module;
FIG. 3 is a schematic perspective view of a horizontal guide rail;
FIG. 4 is a schematic view of the installation of the connecting base on the horizontal guide rail;
FIG. 5 is a schematic perspective view of the connecting base;
FIG. 6 is a schematic view of a horizontal adjustment conveyor;
FIG. 7 is a schematic view of the mounting of a base band clamp on an angle adjusting conveyor belt;
fig. 8 is a schematic structural view of the angle adjusting conveyor belt.
Detailed Description
A financial security system based on biometric technology as shown in fig. 1-8, comprising:
the iris image acquisition module is used for acquiring a plurality of iris two-dimensional images from a plurality of angles with eyeballs as centers, generally, the number of acquired images is not less than 5, and the angle between every two adjacent images is between 5 and 15 degrees.
The iris image merging module is used for rejecting interference item images in the two-dimensional images, wherein the interference items comprise reflected light, unclear, double images, impurity interference and the like, and can be processed according to a traditional mode in the field, such as: graying, binarization, and the like. And combining the two-dimensional images, wherein the combining mode can be the conventional image combining mode. The biggest difference of the invention is that during the merging process, a part of interference item images which are removed are filled by using the corresponding area image in a picture with the closest shooting angle. In other words, if there is a defect caused by reflection in the middle of the image No. 1, the image in the corresponding region in the image No. 2 can be used for filling, and finally, a full iris image is generated. All interference items which can be removed in the generated full-width iris image are completely removed, so that the integrity and completeness of the iris image are ensured.
And the image information extraction module is used for extracting target iris characteristics in the whole iris image, such as target iris characteristics embodied by images of fossa, rugae, pigment spots and the like.
And the iris information database is used for storing the standard iris images and the corresponding standard iris characteristics, and pre-inputting and storing the standard iris images and the corresponding standard iris characteristics in the iris information database.
The iris information comparison module is used for comparing the standard iris characteristics of the standard iris images in the iris information database with the target iris characteristics and judging the coincidence rate. Compared with the mode of single two-dimensional image comparison in the prior art, the method has the advantages that interference items are few, the coverage area is wider when the characteristics are compared, the foundation is laid for improving the comparison coincidence threshold value and realizing precise identification, the image identification accuracy is convenient, and the safety of the iris identification applied to financial protection is improved.
And the financial security protection module is used for encrypting the financial account and the corresponding operation and judging a verification result according to the comparison result of the iris information comparison module. For example: setting the judged coincidence rate threshold value to be 95%, and passing the verification if the judged coincidence rate threshold value is higher than 95%; otherwise, the verification is not passed.
Of course, in order to obtain a plurality of iris pictures at a plurality of angles, if the iris pictures are moved by the head of a person, the sensitivity of the person to the angles is poor, so that the accuracy is greatly influenced, and the identification is finally influenced. Therefore, the invention also provides an iris image acquisition module for adjusting the shooting angle of the iris camera, and the iris image acquisition module is convenient to use, good in stability, compact in structure and convenient to arrange.
As shown in fig. 2 in a top view state, the iris image acquisition module includes an iris camera 2 disposed on a base 1 and used for shooting an eye image of a person to be recognized, and a light supplement lamp 20 is disposed on the base 1 at the periphery of the iris camera 2 in consideration of the need of light supplement, and the light supplement lamp 20 is an LED lamp. Under the shooting of a plurality of angles, the light filling lamp 20 has a larger difference in the reflection position in the image, thereby ensuring that the iris image at the same position is not shielded by the reflection shield in all the images. One side of the base 1, which faces away from the eyes, is provided with an arc-shaped guide rail 3 which takes the eyes as the circle center, and the base 1 is arranged on the arc-shaped guide rail 3 and forms sliding fit with the arc-shaped guide rail 3. The adjustment of the angle of the iris camera 2 is realized through the movement of the base 1 on the arc-shaped guide rail 3.
As the base 1 moves in an arc shape, in order to realize the driving of the base, as shown in fig. 2, the section of the arc-shaped guide rail 3 is in a U shape, and arc-shaped guide grooves 4 extending along the length direction of the arc-shaped guide rail 3 are arranged on the two outer side walls of the arc-shaped guide rail 3. The one side at 3U-shaped bottoms of arc guide rail is provided with the arc hole of stepping down that extends along 3 length direction of arc guide rail. The arc-shaped yielding hole is simple in structure, is similar to the horizontal yielding hole in the figure 3 in form, and is different from the arc-shaped yielding hole in that one of the arc-shaped yielding hole is linear and the other is arc-shaped. Be provided with angle modulation conveyer belt 5 in the inner chamber of arc guide rail 3, as shown in fig. 8, angle modulation conveyer belt 5's the whole extension is the arc, angle modulation conveyer belt 5 is by angle modulation motor drive, and arranges along the length direction of arc guide rail 3. In order to form an arc-shaped extending structure, the middle section of the angle adjusting conveying belt 5 is guided by a plurality of groups of guide riding wheels 6 to form an arc-shaped structure.
The shape of the base 1 is similar to that of the connecting seat 10 shown in fig. 5, the base 1 is Contraband-shaped, but the overall shape of the base 1 has a certain radian, a base connecting rod 7 penetrating through an arc-shaped abdicating hole is arranged on the inner surface of the middle section of the base 1, a base belt clamp 8 is arranged at the inner end of the base connecting rod 7, and the base belt clamp 8 is clamped on the belt body of the angle adjusting conveying belt 5. The inner surfaces of the upper side and the lower side of the base 1 are uniformly distributed with a plurality of rotating pins 9 along the length direction of the arc-shaped guide groove 4, and the rotating pins 9 are matched with the arc-shaped guide groove 4. In order to prevent the rotation pin 9 from interfering with the base belt clip 8, as shown in fig. 7, the guide idler 6 is in contact with one half of the angle-adjusting conveyor belt 5, and the base belt clip 8 is clamped on the other half of the angle-adjusting conveyor belt 5.
For people with different heights, different eye distances and different faces, the eye positions of the people have certain difference, in order to enable the iris camera 2 on the base 1 to be aligned better, the arc-shaped guide rail 3 is installed on the connecting seat 10, the connecting seat 10 is arranged on a position adjusting mechanism, and the position adjusting mechanism comprises a transverse adjusting component and a longitudinal adjusting component, wherein the transverse adjusting component can drive the connecting seat 10 to adjust the position in the horizontal direction, and the longitudinal adjusting component can drive the connecting seat 10 to adjust the position in the vertical direction.
The structure of the horizontal adjustment assembly of the present invention can refer to the connection structure between the base 1 and the arc guide rail 3, and the difference is that there is a certain adjustment according to the linear difference of the arc guide rail 3 and the horizontal guide rail 11. Specifically, the horizontal adjusting assembly comprises a horizontal guide rail 11 which is U-shaped in cross section and extends along the horizontal direction, and horizontal guide grooves 12 which extend along the length direction of the horizontal guide rail 11 are arranged on two outer side walls of the horizontal guide rail 11. One side at the U-shaped bottom of the horizontal guide rail 11 is provided with a horizontal abdicating hole 13 extending along the length direction of the horizontal guide rail 11. A horizontal adjusting conveying belt 14 is arranged in the inner cavity of the horizontal guide rail 11, and the horizontal adjusting conveying belt 14 is driven by a horizontal adjusting motor 15 and is arranged along the length direction of the horizontal guide rail 11.
The connecting seat 10 is Contraband-shaped, a connecting seat connecting rod 16 penetrating through the horizontal abdicating hole 13 is arranged on the inner surface of the middle section of the connecting seat 10, a connecting seat belt clip 17 is arranged at the inner end of the connecting seat connecting rod 16, and the connecting seat belt clip 17 is clamped on the belt body of the horizontal conveying belt. The inner surfaces of the upper and lower sides of the connecting seat 10 are uniformly distributed with a plurality of rotating pins 9 along the length direction of the horizontal guide groove 12, and the rotating pins 9 are matched with the horizontal guide groove 12.
Regarding the concrete structure of vertical adjusting part, it can adopt linear push rod direct drive, also can, vertical adjusting part is including fixed two connecting blocks 18 that set up at horizontal guide rail 11 opening side both ends, two be provided with vertical guiding hole and screw hole on the connecting block 18 respectively, guiding hole and screw hole that are provided with the looks adaptation are downthehole respectively to be provided with guide bar and the screw rod, the screw rod is by vertical adjusting motor drive.
In most cases, the iris recognition is preferably performed through both eyes, which can further improve the accuracy, and for this purpose, the longitudinal adjusting assembly of the present invention includes two connecting blocks 18 fixedly disposed at both ends of the opening side of the horizontal guide rail 11, wherein vertical guide holes are disposed on both the two connecting blocks 18, and the guide holes are disposed with adaptive guide rods therein. The iris image acquisition modules comprise two iris image acquisition modules, and the two horizontal guide rails 11 of the two iris image acquisition modules are connected with each other by two connecting blocks 18 close to the inner sides through bridging rods 19. The bridging rod 19 is provided with a threaded hole, a matched screw rod is adapted in the threaded hole, and the screw rod is driven by a longitudinal adjusting motor. The iris cameras 2 on the two iris image acquisition modules can be synchronously driven to move vertically through one screw.
Claims (10)
1. A financial security system based on biometric identification technology, comprising:
the iris image acquisition module is used for acquiring a plurality of iris two-dimensional images from a plurality of angles with eyeballs as centers;
the iris image merging module is used for eliminating interference item images in the two-dimensional images and merging the two-dimensional images; when merging processing is carried out, filling a part of interference item images which are removed by utilizing the corresponding area image in a picture with the closest shooting angle; finally, generating a full iris image;
the image information extraction module is used for extracting target iris characteristics in the full iris image;
the iris information database is used for storing standard iris images and corresponding standard iris characteristics;
the iris information comparison module is used for comparing the standard iris characteristics of the standard iris images in the iris information database with the target iris characteristics and judging the coincidence rate;
and the financial security protection module is used for encrypting the financial account and the corresponding operation and judging a verification result according to the comparison result of the iris information comparison module.
2. The biometric-based financial security system of claim 1, wherein: the iris image acquisition module is including setting up iris camera (2) that are used for shooting the personnel eye image of waiting to discern on base (1), one side of base (1) eye dorsad is provided with arc guide rail (3) that use the eye as the centre of a circle, and base (1) sets up on arc guide rail (3), and constitutes sliding fit with arc guide rail (3).
3. The biometric-based financial security system of claim 2, wherein: the section of the arc-shaped guide rail (3) is U-shaped, and arc-shaped guide grooves (4) extending along the length direction of the arc-shaped guide rail (3) are formed in the two outer side walls of the arc-shaped guide rail (3); one surface of the U-shaped bottom of the arc-shaped guide rail (3) is provided with an arc-shaped abdicating hole extending along the length direction of the arc-shaped guide rail (3); an angle adjusting conveyor belt (5) is arranged in an inner cavity of the arc-shaped guide rail (3), the angle adjusting conveyor belt (5) is driven by an angle adjusting motor and is arranged along the length direction of the arc-shaped guide rail (3), and the middle section of the angle adjusting conveyor belt (5) is guided by a plurality of groups of guide supporting wheels (6) to form an arc-shaped structure;
the base (1) is Contraband-shaped, a base connecting rod (7) penetrating through an arc-shaped abdicating hole is arranged on the inner surface of the middle section of the base (1), a base belt clamp (8) is arranged at the inner end of the base connecting rod (7), and the base belt clamp (8) is clamped on the belt body of the angle adjusting conveying belt (5); the inner surfaces of the upper side and the lower side of the base (1) are uniformly distributed with a plurality of rotating pins (9) along the length direction of the arc-shaped guide groove (4), and the rotating pins (9) are matched with the arc-shaped guide groove (4).
4. The biometric-based financial security system of claim 3, wherein: the guide riding wheel (6) is in contact with one half of the belt body of the angle adjusting conveying belt (5), and the base belt clamp (8) is clamped on the other half of the belt body of the angle adjusting conveying belt (5).
5. The biometric-based financial security system of claim 2, wherein: the arc-shaped guide rail (3) is installed on the connecting seat (10), the connecting seat (10) is arranged on the position adjusting mechanism, and the position adjusting mechanism comprises a transverse adjusting assembly and a longitudinal adjusting assembly, wherein the transverse adjusting assembly can drive the connecting seat (10) to perform position adjustment in the horizontal direction, and the longitudinal adjusting assembly can drive the connecting seat (10) to perform position adjustment in the vertical direction.
6. The biometric-based financial security system of claim 5, wherein: the horizontal adjusting assembly comprises a horizontal guide rail (11) which is U-shaped in cross section and extends along the horizontal direction, and horizontal guide grooves (12) extending along the length direction of the horizontal guide rail (11) are formed in two outer side walls of the horizontal guide rail (11); one surface of the U-shaped bottom of the horizontal guide rail (11) is provided with a horizontal abdicating hole (13) extending along the length direction of the horizontal guide rail (11); a horizontal adjusting conveying belt (14) is arranged in the inner cavity of the horizontal guide rail (11), the horizontal adjusting conveying belt (14) is driven by a horizontal adjusting motor (15) and is arranged along the length direction of the horizontal guide rail (11);
the connecting seat (10) is Contraband-shaped, a connecting seat connecting rod (16) penetrating through the horizontal abdicating hole (13) is arranged on the inner surface of the middle section of the connecting seat (10), a connecting seat belt clamp (17) is arranged at the inner end of the connecting seat connecting rod (16), and the connecting seat belt clamp (17) is clamped on the belt body of the horizontal conveying belt; the inner surfaces of the upper side and the lower side of the connecting seat (10) are uniformly distributed with a plurality of rotating pins (9) along the length direction of the horizontal guide groove (12), and the rotating pins (9) are matched with the horizontal guide groove (12).
7. The biometric-based financial security system of claim 6, wherein: the longitudinal adjusting assembly comprises two connecting blocks (18) fixedly arranged at two ends of the opening side of the horizontal guide rail (11), two vertical guide holes and threaded holes are formed in the connecting blocks (18) respectively, guide rods and screw rods which are matched with each other are arranged in the guide holes and the threaded holes respectively, and the screw rods are driven by a longitudinal adjusting motor.
8. The biometric-based financial security system of claim 6, wherein: the longitudinal adjusting assembly comprises two connecting blocks (18) fixedly arranged at two ends of the opening side of the horizontal guide rail (11), vertical guide holes are formed in the two connecting blocks (18), and guide rods matched with the guide holes are arranged in the guide holes;
the iris image acquisition modules comprise two iris image acquisition modules, and two connecting blocks (18) of the horizontal guide rails (11) of the two iris image acquisition modules, which are close to the inner sides, are connected through a bridging rod (19); the bridge connection rod (19) is provided with a threaded hole, a matched screw rod is matched in the threaded hole, and the screw rod is driven by a longitudinal adjusting motor.
9. The biometric-based financial security system of claim 2, wherein: and a light supplement lamp (20) is arranged on the base (1) positioned at the periphery of the iris camera (2).
10. The biometric-based financial security system of claim 9, wherein: the light supplement lamp (20) is an LED lamp.
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