Finger vein living body biological characteristic acquisition device

Abstract

The utility model discloses a finger vein living body biological characteristic collection device, and relates to the field of biological characteristic collection, the finger vein living body biological characteristic collection device comprises a collector main body, a collection module is mounted on the collector main body, a support box is arranged on the collector main body, an alignment collection mechanism is arranged between the support box and the collector main body, and a shading mechanism is arranged on the support box; a collecting groove is formed in the supporting box and penetrates through the supporting box. A finger needing to be collected is clamped and fixed by utilizing the alignment collection mechanism, then the collection module on the collector main body is moved by utilizing the alignment collection mechanism to directly face the finger, then the upper part of the finger is shielded by utilizing the shading mechanism on the supporting box, and then the alignment collection module is lifted; the acquisition module of the acquisition device main body abuts against the finger to perform multiple times of feature acquisition, so that the offset of the acquisition position when the acquisition module on the acquisition device main body is repeatedly pressed can be reduced during multiple times of acquisition, and the comparison of multiple times of acquisition is facilitated.

Description

Technical Field

[0001] This application relates to the field of biometric data collection, and more particularly to a finger vein in vivo biometric data collection device. Background Art

[0002] Finger vein in vivo biometric data collection is a technology that uses the image of the internal vein distribution of a finger for identity recognition. The finger vein recognition technology uses the vein pattern image obtained after near-infrared light penetrates the finger for personal identification. When near-infrared light irradiates the finger, only the vein part will have a weak reflection, thus forming a vein pattern image.

[0003] During collection, the person being collected needs to determine the finger to be collected, then move the front end of the finger above the collection module on the collection device main body, and then the collection module uses infrared irradiation for feature collection. Since multiple vein images of the same finger need to be collected, the collector needs to repeatedly move the finger close to the collection module on the collection device main body.

[0004] During collection, the collector moves the finger back and forth. Each time the collector's finger is placed in the collection slot, it may shift, resulting in image errors and affecting recognition. Summary of the Utility Model

[0005] The purpose of this application is to provide a finger vein in vivo biometric data collection device to solve the problem that the collector moves the finger back and forth, and each time the collector's finger is placed in the collection slot, it may shift, resulting in image errors and affecting recognition as mentioned in the above background art.

[0006] The specific technical solutions adopted by this application to achieve the above purpose are as follows:

[0007] A finger vein in vivo biometric data collection device includes a collection device main body, a collection module is installed on the collection device main body, a support box is provided on the collection device main body, an alignment collection mechanism is provided between the support box and the collection device main body, a light shielding mechanism is provided on the support box, a collection slot is opened on the support box, and the collection slot penetrates the support box.

[0008] By adopting the above technical solutions, the finger to be collected is clamped and fixed by the alignment collection mechanism, then the collection module on the collection device main body is moved to face the finger by the alignment collection mechanism, then the light shielding mechanism on the support box is used to shield the upper part of the finger, and then the alignment collection module is raised so that the collection module of the collection device main body contacts the finger for multiple feature collections, thereby reducing the offset of the collection position when repeatedly pressing the collection module on the collection device main body during multiple collections, facilitating the comparison of multiple collections.

[0009] Further, the alignment and acquisition mechanism includes a support base disposed in the support box. An electric lifting rod is fixed on the support base, and the telescopic end of the electric lifting rod is fixedly connected to the main body of the collector. Both sides of the support base are slidably connected to sliding rails, and the sliding rails are fixedly connected to the support box. An adjustment assembly is provided between the support base and the support box, and a clamping assembly is provided on the support box.

[0010] By adopting the above technical solution, the clamping assembly is used to clamp and fix the finger, the position of the support base is adjusted by the adjustment assembly, and then the electric lifting rod is used to drive the main body of the collector to lift multiple times for multiple feature acquisitions. Thus, during multiple acquisitions, the offset between the finger and the acquisition module can be reduced, the acquisition accuracy can be improved, and subsequent feature comparison is facilitated.

[0011] Further, the clamping assembly includes two fixing blocks symmetrically fixed on the support box. A bidirectional threaded rod is rotatably connected between the two fixing blocks, and two clamping plates are threadedly connected to the bidirectional threaded rod.

[0012] By adopting the above technical solution, the bidirectional threaded rod is rotated to make the two clamping plates clamp the finger, so that the finger can be fixed and the possibility of the finger shifting during acquisition can be reduced.

[0013] Further, clamping pads are fixed on the two clamping plates. Arc-shaped grooves are formed in the clamping pads, and a plurality of uniformly distributed anti-slip strips are fixed on the clamping pads.

[0014] By adopting the above technical solution, when the two clamping plates clamp the finger, the clamping pads on the clamping plates abut against the finger, so that the finger can be further stabilized and the possibility of the finger sliding on the clamping plates can be reduced.

[0015] Further, a limiting strip is fixed between the two fixing blocks, and the limiting strip abuts against and slides with the two clamping plates.

[0016] By adopting the above technical solution, when the two clamping plates move on the bidirectional threaded rod, the limiting plate restricts one end of the clamping plate, so that the possibility of the clamping plate rotating on the bidirectional threaded rod can be reduced.

[0017] Further, the adjustment assembly includes two limiting plates symmetrically fixed on the support box. An adjustment threaded rod is rotatably connected between the two limiting plates. The adjustment threaded rod penetrates through the support base and is threadedly connected to the support base. One end of the adjustment threaded rod penetrates through one of the limiting plates.

[0018] By adopting the above technical solution, after the finger is clamped, rotating the adjusting threaded rod can drive the support base to drive the collector body to move, so that the collection module on the collector body can be conveniently aligned with the finger, facilitating adaptation to fingers of different lengths.

[0019] Further, the light-shielding mechanism includes two light-shielding covers symmetrically arranged on the support box. One side of the light-shielding cover is fixed with a rotating rod, and both ends of the rotating rod are rotatably connected to mounting blocks, and the mounting blocks are fixedly connected to the support box.

[0020] By adopting the above technical solution, the two light-shielding covers are lifted under the support of the rotating rod, and the two light-shielding covers are made to abut against each other around the rotating rod, so as to reduce the influence of ambient light on finger feature collection.

[0021] Further, magnetic strips are fixed on the corresponding edges of the two light-shielding covers.

[0022] By adopting the above technical solution, the two light-shielding covers are made to abut against each other around the rotating rod, and then the magnetic strips on the two light-shielding covers are made to abut against each other, so as to facilitate the fixation of the light-shielding covers.

[0023] In summary, the present application includes at least one of the following beneficial effects;

[0024] 1. In the present application, when collecting, first place the finger of the collector between the two clamping plates, then rotate the knob on the bidirectional threaded rod to make the two clamping plates approach each other, make the two clamping pads clamp the corresponding finger, then rotate the knob on the adjusting threaded rod to make the adjusting threaded rod rotate on the limiting plate, make the support base slide under the restriction of the two sliding rails, drive the collector body to move by the support base, make the collection module on the collector body face the finger, then use the electric lifting rod to drive the collector body to rise, make the collection module abut against the finger for collection. After the collection is completed, the electric lifting rod drives the collector body to descend, and then raises the collector body again for the next collection, achieving the purpose of reducing the offset between the finger and the collection module during multiple collections, improving the accuracy of collection, and facilitating subsequent feature comparison.

[0025] 2. In the present application, after the finger is clamped by the two clamping plates, lift the two light-shielding covers under the support of the rotating rod, make the two light-shielding covers abut against each other around the rotating rod, and then make the magnetic strips on the two light-shielding covers abut against each other, so that the two light-shielding covers shield the upper part of the finger, achieving the purpose of reducing the influence of ambient light on finger feature collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the first three-dimensional structural schematic diagram of the collection device in the present application;

[0027] Figure 2 It is a schematic cross-sectional three-dimensional structure diagram of the collection device in this application.

[0028] Explanation of reference numerals:

[0029] 1. Collector main body; 2. Support box; 3. Alignment collection mechanism; 31. Support base; 32. Electric lifting rod; 33. Sliding rail; 34. Adjustment component; 341. Limiting plate; 342. Adjustment threaded rod; 35. Clamping component; 351. Fixed block; 352. Bidirectional threaded rod; 353. Clamping plate; 354. Clamping pad; 355. Anti-slip strip; 356. Limiting strip; 4. Light-shielding mechanism; 41. Light-shielding cover; 42. Mounting block; 43. Rotating rod; 44. Magnetic strip; 5. Collection module; 6. Collection groove. Specific implementation manners

[0030] The following further elaborates on this application in conjunction with the attached Figure 1 —2.

[0031] The embodiment of this application discloses a finger vein in-vivo biometric collection device.

[0032] Referring to Figure 1 and Figure 2 The finger vein in-vivo biometric collection device includes a collector main body 1, a collection module 5 is installed on the collector main body 1, a support box 2 is arranged on the collector main body 1, an alignment collection mechanism 3 is arranged between the support box 2 and the collector main body 1, a light-shielding mechanism 4 is arranged on the support box 2, and a collection groove 6 is opened on the support box 2, and the collection groove 6 penetrates through the support box 2.

[0033] When using the collector main body 1 for biometric collection, first, use the alignment collection mechanism 3 to install the collector main body 1 in the support box 2. During collection, first, use the alignment collection mechanism 3 to clamp and fix the finger to be collected, then use the alignment collection mechanism 3 to move the collection module 5 on the collector main body 1 to face the finger, then use the light-shielding mechanism 4 on the support box 2 to block the upper part of the finger, and then raise the alignment collection module 5 so that the collection module 5 of the collector main body 1 touches the finger to perform multiple feature collections. By using the alignment collection mechanism 3 to install the collector main body 1 on the support box 2, then clamp the finger of the collector, and then the alignment collection mechanism 3 drives the collector main body 1 to repeatedly contact for feature collection, so that when performing multiple collections, the deviation of the collection position when repeatedly pressing the collection module 5 on the collector main body 1 can be reduced, which is convenient for comparison of multiple collections.

[0034] Referring to Figure 1 and Figure 2, the alignment acquisition mechanism 3 includes a support base 31 disposed in the support box 2. An electric lifting rod 32 is fixed on the support base 31. The telescopic end of the electric lifting rod 32 is fixedly connected to the collector main body 1. Both sides of the support base 31 are slidably connected to sliding rails 33, and the sliding rails 33 are fixedly connected to the support box 2. An adjustment assembly 34 is disposed between the support base 31 and the support box 2, and a clamping assembly 35 is disposed on the support box 2.

[0035] In addition, the clamping assembly 35 includes two fixing blocks 351 symmetrically fixed on the support box 2. A bidirectional threaded rod 352 is rotatably connected between the two fixing blocks 351. Two clamping plates 353 are threadedly connected to the bidirectional threaded rod 352.

[0036] Moreover, clamping pads 354 are fixed on the two clamping plates 353. Arc-shaped grooves are formed on the clamping pads 354, and a plurality of uniformly distributed anti-slip strips 355 are fixed on the clamping pads 354.

[0037] Also, a limiting strip 356 is fixed between the two fixing blocks 351. The limiting strip 356 abuts against and slides with the two clamping plates 353.

[0038] And, the adjustment assembly 34 includes two limiting plates 341 symmetrically fixed on the support box 2. An adjustment threaded rod 342 is rotatably connected between the two limiting plates 341. The adjustment threaded rod 342 passes through the support base 31 and is threadedly connected to the support base 31. One end of the adjustment threaded rod 342 passes through one of the limiting plates 341.

[0039] When collecting, first place the collector's finger between the two clamping plates 353, then rotate the knob on the bidirectional threaded rod 352 to make the two clamping plates 353 approach each other, so that the two clamping pads 354 clamp the corresponding finger. Then rotate the knob on the adjustment threaded rod 342 to make the adjustment threaded rod 342 rotate on the limiting plate 341, so that the support base 31 slides under the restriction of the two sliding rails 33, and the support base 31 drives the collector main body 1 to move, making the collection module 5 on the collector main body 1 face the finger. Then use the electric lifting rod 32 to drive the collector main body 1 to rise, making the collection module 5 abut against the finger for collection. After the collection is completed, the electric lifting rod 32 drives the collector main body 1 to descend, and then raises the collector main body 1 again for the next collection. By using the two clamping plates 353 to clamp the finger to keep the finger stationary, and then using the electric lifting rod 32 to drive the collector main body 1 to abut against the finger back and forth, it is possible to reduce the offset between the finger and the collection module 5 during multiple collections, improve the accuracy of collection, and facilitate subsequent feature comparison.

[0040] Refer to Figure 1 and Figure 2, the light-shielding mechanism 4 includes two light-shielding covers 41 symmetrically arranged on the support box 2. One side of the light-shielding cover 41 is fixed with a rotating rod 43. Both ends of the rotating rod 43 are rotatably connected to mounting blocks 42, and the mounting blocks 42 are fixedly connected to the support box 2.

[0041] In addition, magnetic attraction strips 44 are fixed on the corresponding edges of the two light-shielding covers 41.

[0042] After the finger is clamped by the two clamping plates 353, the two light-shielding covers 41 are lifted under the support of the rotating rod 43, so that the two light-shielding covers 41 abut against each other around the rotating rod 43. Then, the magnetic attraction strips 44 on the two light-shielding covers 41 are made to abut against each other, so that the two light-shielding covers 41 shield the upper part of the finger. When collecting finger features, by using the light-shielding covers 41 to shield the upper part of the finger, the influence of ambient light on finger feature collection can be reduced.

[0043] Working principle: When collecting, first place the collector's finger between the two clamping plates 353, then rotate the knob on the bidirectional threaded rod 352 to make the two clamping plates 353 approach each other, so that the two clamping pads 354 clamp the corresponding finger. Then rotate the knob on the adjusting threaded rod 342 to make the adjusting threaded rod 342 rotate on the limiting plate 341, so that the support base 31 slides under the restriction of the two sliding rails 33, and the support base 31 drives the collector main body 1 to move, so that the collection module 5 on the collector main body 1 faces the finger. After the finger is clamped by the two clamping plates 353, the two light-shielding covers 41 are lifted under the support of the rotating rod 43, so that the two light-shielding covers 41 abut against each other around the rotating rod 43. Then, the magnetic attraction strips 44 on the two light-shielding covers 41 are made to abut against each other, so that the two light-shielding covers 41 shield the upper part of the finger. Then use the electric lifting rod 32 to drive the collector main body 1 to rise, so that the collection module 5 abuts against the finger for collection. After the collection is completed, the electric lifting rod 32 drives the collector main body 1 to descend, and then raises the collector main body 1 again for the next collection. After all the collections are completed, open the light-shielding cover 41, and then move the two clamping plates 353 away from each other to remove the finger.

Claims

1. A finger vein living body biometrics collection device, comprising a collector body (1), characterized in that: A collection module (5) is installed on the collector body (1); a support box (2) is arranged on the collector body (1); an alignment collection mechanism (3) is arranged between the support box (2) and the collector body (1); a shading mechanism (4) is arranged on the support box (2); a collection slot (6) is opened on the support box (2); and the collection slot (6) passes through the support box (2).

2. The finger vein living body biological characteristic acquisition device according to claim 1, characterized in that: The alignment collection mechanism (3) comprises a support seat (31) arranged in the support box (2), an electric lifting rod (32) is fixed on the support seat (31), the telescopic end of the electric lifting rod (32) is fixedly connected to the collector body (1), both sides of the support seat (31) are slidably connected to sliding rails (33), the sliding rails (33) are fixedly connected to the support box (2), an adjustment component (34) is arranged between the support seat (31) and the support box (2), and a clamping component (35) is arranged on the support box (2).

3. The finger vein living body biological characteristic acquisition device according to claim 2, characterized in that: The clamping assembly (35) comprises two fixing blocks (351) symmetrically fixed on the support box (2), a bidirectional threaded rod (352) rotatably connected between the two fixing blocks (351), and two clamping plates (353) are threadedly connected to the bidirectional threaded rod (352).

4. The finger vein living body biological characteristic acquisition device according to claim 3, characterized in that: A clamping pad (354) is fixed on the two clamping plates (353), an arc-shaped groove is provided on the clamping pad (354), and a plurality of evenly distributed anti-slip strips (355) are fixed on the clamping pad (354).

5. The finger vein living body biological characteristic acquisition device according to claim 4, characterized in that: A limit strip (356) is fixed between the two fixed blocks (351), and the limit strip (356) contacts and slides with the two clamping plates (353).

6. The finger vein living body biological characteristic acquisition device according to claim 2, characterized in that: The adjustment assembly (34) comprises two limit plates (341) symmetrically fixed on the support box (2); an adjustment threaded rod (342) is rotatably connected between the two limit plates (341); the adjustment threaded rod (342) passes through the support seat (31) and is threadedly connected to the support seat (31); one end of the adjustment threaded rod (342) passes through one of the limit plates (341).

7. The finger vein living body biological characteristic acquisition device according to claim 1, characterized in that: The shading mechanism (4) comprises two shading covers (41) symmetrically arranged on the support box (2); a rotating rod (43) is fixed to one side of the shading cover (41); both ends of the rotating rod (43) are rotatably connected to mounting blocks (42); and the mounting blocks (42) are fixedly connected to the support box (2).

8. The finger vein living body biological characteristic acquisition device according to claim 7, characterized in that: Magnetic strips (44) are fixed on corresponding edges of the two light shielding covers (41).

Images