CN203720095U - Infrared thermal radiation image acquisition system for sweat fingerprint on paper - Google Patents
Infrared thermal radiation image acquisition system for sweat fingerprint on paper Download PDFInfo
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- CN203720095U CN203720095U CN201420007622.2U CN201420007622U CN203720095U CN 203720095 U CN203720095 U CN 203720095U CN 201420007622 U CN201420007622 U CN 201420007622U CN 203720095 U CN203720095 U CN 203720095U
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- paper
- district
- image acquisition
- acquisition system
- infrared emanation
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Abstract
The utility model discloses an infrared thermal radiation image acquisition system for a sweat fingerprint on paper. A platform capable of moving along X,Y and Z directions or the X and Y directions is arranged at the inner bottom of an image observation and shooting area on the middle part of a box body, wherein a camera fixing frame is arranged above the platform; laser light sources are arranged on the two sides of the camera fixing frame respectively; an ultraviolet light source is also arranged on one side of the camera fixing frame; and scattering mirrors are arranged below the laser light sources respectively. The infrared thermal radiation image acquisition system for the sweat fingerprint on the paper is low in sample detection error and high in accuracy.
Description
Technical field
The utility model relates to one and penetrates image acquisition system, relates in particular to a kind of paper sweat fingerprint infrared emanation image acquisition system.
Background technology
When public security department carries out shot detection to sample; conventionally can first heat sample; and then utilize digital camera to take; it is only a kind of to sample single-side heating device that public security department is used paper sweat fingerprint to manifest instrument; there is no image collection function; the sample that overturns again after sample one side having been heated when heating heats sample another side; so not only the heat time is long; and when heating sample directly contact with loading plate; human body cell on Different field can drop on same loading plate; cause cross-infection, thereby can affect detection effect.In addition, public security department, in the time that sample is carried out to shot detection, is used white light conventionally, and white light is a kind of mixed light, and its spectrum is wider, thereby it is large to make to detect error, and accuracy is poor.
Utility model content
The purpose of this utility model is to provide a kind of little and higher paper sweat fingerprint infrared emanation image acquisition system of accuracy of error that detects.
For achieving the above object, the utility model provides a kind of paper sweat fingerprint infrared emanation image acquisition system, comprise casing, the middle part of described casing is Imaging Study and the district of taking pictures, the front in described Imaging Study and the district of taking pictures is provided with cleaning door, described Imaging Study and the district's inner bottom part of taking pictures are provided with can be along X, Y, tri-directions of Z or X, Y both direction moves and can place the platform of A4 paper size, Imaging Study above described platform and the district's inner top of taking pictures are provided with camera fixed mount, on described camera fixed mount, be placed with digital camera, the both sides of described camera fixed mount are respectively equipped with a LASER Light Source, and a wherein side of described camera fixed mount is also provided with a ultraviolet source, below each described LASER Light Source, be provided with respectively and make laser light scattering and make the light-radiating lens that laser light scattering area is proper and platform size adapts.
Preferably, the left side of described casing is infrared emanation district, in described infrared emanation district, be provided with to be opened/closed for heating two radiant heating panels of sample, between two described radiant heating panels, form sample heating space, in described infrared emanation district, be also provided with the sample hanger of fixing sample.
Preferably, the right side of described casing is control zone, is provided with the control panel of controlling two described radiant heating panel switchings, LASER Light Source and ultraviolet source switching and platform movement in described control zone.
Preferably, the first gearing that is also provided with three or two the first drive units in described Imaging Study and the district of taking pictures and arranges by X, Y, tri-directions of Z or X, Y both direction respectively, each described the first drive unit is respectively by the described platform that links of the first gearing described in; In described infrared emanation district, be also provided with the second drive unit and the second gearing, described the second drive unit is by two described radiant heating panels of described the second gearing interlock, and described three the first drive units and the second drive unit are all connected to described control panel.
Preferably, described the first drive unit and the second drive unit are motor, described the first gearing and the second gearing are screw rod, and two slide blocks that oppositely move are installed on described the second gearing, and two described radiant heating panels are arranged on respectively on corresponding slide block.
Preferably, outside, described control zone is provided with connectivity port, and described connectivity port is connected to computer.
Preferably, described Imaging Study and the front, district of taking pictures are provided with two view windows.
Preferably, two described view window places are separately installed with UV optical filtering and Yellow filter mirror.
Preferably, described light-radiating lens is lens or ground glass.
Compared with prior art, paper sweat fingerprint infrared emanation image acquisition system of the present utility model is by adopting LASER Light Source, and scatter to platform magnitude range with light-radiating lens, therefore just can cover whole A4 paper, laser is monochromatic light, spectrum is narrower, when the paper on platform being taken pictures with digital camera, can promote clearness, and the detection ratio to sweat fingerprint is easier to, detect error little, accuracy is higher; By adopting two radiant heating panels, thereby can heat the two sides of sample simultaneously, thereby shorten the heat time to sample, and sample is fixed on sample hanger, can avoid like this sample directly to contact with radiant heating panel, avoid cell to drop on radiant heating panel, thereby can ensure follow-up detection effect.
By following description also by reference to the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used for explaining embodiment of the present utility model.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model paper sweat fingerprint infrared emanation image acquisition system.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, in accompanying drawing, similarly element numbers represents similar element.
Please refer to Fig. 1, described paper sweat fingerprint infrared emanation image acquisition system is for detection of samples such as paper, it comprises casing 100, the middle part of described casing 100 is Imaging Study and the district 1 of taking pictures, the left side of described casing 100 is infrared emanation district 2, and the right side of described casing 100 is control zone 3.
The front in described Imaging Study and the district 1 of taking pictures is provided with cleaning door 4.Described Imaging Study and district's 1 inner bottom part of taking pictures are provided with the platform 5 that can move along X, Y, tri-directions of Z, and the size of described platform 5 and A4 paper size adapt.In this specific embodiment, three the first gearings 7 that are also provided with three the first drive units 6 in described Imaging Study and the district 1 of taking pictures and arrange by X, Y, tri-directions of Z respectively, three described the first drive units 6 by the described platform 5 that links of the first gearing 7 described in, can move along X, Y, tri-directions of Z described platform 5 respectively.Described the first drive unit 7 is motor, and described the first gearing 6 is screw rod.Imaging Study above described platform 5 and district's 1 inner top of taking pictures are provided with camera fixed mount 8.On described camera fixed mount 8, be placed with digital camera, the camera lens of digital camera is perpendicular to the center of described platform 5.The both sides of described camera fixed mount 8 are respectively equipped with a LASER Light Source 9, and a wherein side of described camera fixed mount 8 is also provided with a ultraviolet source 10.Below each described LASER Light Source 9, be provided with respectively the light-radiating lens 11 that makes laser light scattering and laser light scattering area size proper and platform 5 is adapted.Described light-radiating lens 11 can make laser light scattering that LASER Light Source 9 sends to A4 paper, and described light-radiating lens 11 can make the scattering area of the laser that LASER Light Source 9 sends just adapt with the size of platform 4, i.e. whole A4 paper of covering just.In this specific embodiment, described light-radiating lens 11 is lens or ground glass.Described Imaging Study and 1 front, district of taking pictures are also provided with two view window (not shown).Two described view window places are separately installed with UV optical filtering and Yellow filter mirror.Described view window also can be set, and only use the glasses that dispose UV optical filtering and Yellow filter mirror.
In described infrared emanation district 2, be provided with to be opened/closedly for heating two radiant heating panels 13 of sample, between two described radiant heating panels 13, form sample heating space.In described infrared emanation district 2, be also provided with the sample hanger 14 of fixing sample.In this specific embodiment, be also provided with the second drive unit 15 and the second gearing 16 in described infrared emanation district 2, described the second drive unit 15 is by two described radiant heating panels 13 of described the second gearing 16 interlock.Described the second drive unit 15 is motor, and described the second gearing 16 is screw rod.Two slide blocks 17 that oppositely move are installed on described the second gearing 16, described the second gearing 16 is realized rotation by the driving of described the second drive unit 15, and the rotation of described the second gearing 16 can make two described slide blocks 17 oppositely move.Two described radiant heating panels 13 are arranged on respectively on corresponding slide block 17, and two described radiant heating panels 13 oppositely move by the reverse movement of two described slide blocks 17.
3 fronts, described control zone are provided with controls described two radiant heating panel 13 switchings and radiation temperature and time, LASER Light Source 9 and ultraviolet source 10 opens and closes and platform 5 moves control panel 18, and described three the first drive units 6 and the second drive unit 15 are all connected to described control panel 18.3 outsides, described control zone are provided with connectivity port 19, and described connectivity port 19 is connected to touch screen computer 20, thereby can utilize touch screen computer 20 to control digital camera operation.And after the interior mounting software of touch screen computer 20, the movement of sample a position can solve by touch screen, easy to operate.
When use, first control two described radiant heating panels 13 are opened by described control panel 18, and set radiation temperature and time, then by sample a as the paper of A4 paper size be fixed on as described in sample heating space on sample hanger 14 and as described in being positioned at, utilize two described radiant heating panels 13 to heat sample a; Then, digital camera is arranged on described camera fixed mount 8, sample a after heating is placed on described platform 5, controlling described platform 5 by described control panel 18 moves, make described platform 5 adjust to appropriate location, and control described LASER Light Source 9 and described ultraviolet source 10 electrified light emittings by described control panel 18, then make digital camera complete the shooting to sample a.
In sum, by adopt two radiant heating panels 13 to heat sample two sides simultaneously, thereby shorten the heat time to sample a, and sample a is fixed on sample hanger 14, can avoid like this sample a directly to contact with radiant heating panel 13, avoid cell to drop on radiant heating panel 13, thereby can ensure follow-up detection effect; By adopting LASER Light Source 9, and scatter to platform magnitude range with light-radiating lens 11, therefore just can cover whole sample a, laser is monochromatic light, spectrum is narrower, can promote clearness, and the detection ratio of sweat fingerprint is easier to when the sample on platform being taken pictures with digital camera, detection error is little, and accuracy is higher; By adopting Electric Machine Control platform 5 and radiant heating panel 13 to move, and motor controlled by control panel 18 again, and whole process automation is simple to operate, thereby has improved detection efficiency, and simple in structure.
The utility model can also have other embodiment, in other embodiments, described platform 5 also can only do the movement of X, Y-direction, at this moment two the first drive units 6 and two the first gearings 7 that move along X, Y-direction respectively are only set, each described the first drive unit is by the described platform 5 that links of the first gearing 7 described in, make platform 5 only do the movement of X, Y-direction, also can reach technique effect same as the previously described embodiments.
In conjunction with most preferred embodiment, the utility model is described above, but the utility model is not limited to the embodiment of above announcement, and should contains the various amendments of carrying out according to essence of the present utility model, equivalent combinations.
Claims (9)
1. a paper sweat fingerprint infrared emanation image acquisition system, comprise casing, it is characterized in that: the middle part of described casing is Imaging Study and the district of taking pictures, the front in described Imaging Study and the district of taking pictures is provided with cleaning door, described Imaging Study and the district's inner bottom part of taking pictures are provided with can be along X, Y, tri-directions of Z or X, Y both direction moves and can place the platform of A4 paper size, Imaging Study above described platform and the district's inner top of taking pictures are provided with camera fixed mount, on described camera fixed mount, be placed with digital camera, the both sides of described camera fixed mount are respectively equipped with a LASER Light Source, and a wherein side of described camera fixed mount is also provided with a ultraviolet source, below each described LASER Light Source, be provided with respectively and make laser light scattering and make the light-radiating lens that laser light scattering area is proper and platform size adapts.
2. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 1, it is characterized in that: the left side of described casing is infrared emanation district, in described infrared emanation district, be provided with to be opened/closed for heating two radiant heating panels of sample, between two described radiant heating panels, form sample heating space, in described infrared emanation district, be also provided with the sample hanger of fixing sample.
3. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 2, it is characterized in that: the right side of described casing is control zone, in described control zone, be provided with the control panel of controlling two described radiant heating panel switchings, LASER Light Source and ultraviolet source switching and platform movement.
4. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 3, it is characterized in that: the first gearing that is also provided with three or two the first drive units in described Imaging Study and the district of taking pictures and arranges by X, Y, tri-directions of Z or X, Y both direction respectively, each described the first drive unit is respectively by the described platform that links of the first gearing described in; In described infrared emanation district, be also provided with the second drive unit and the second gearing, described the second drive unit is by two described radiant heating panels of described the second gearing interlock, and described three the first drive units and the second drive unit are all connected to described control panel.
5. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 4, it is characterized in that: described the first drive unit and the second drive unit are motor, described the first gearing and the second gearing are screw rod, two slide blocks that oppositely move are installed on described the second gearing, and two described radiant heating panels are arranged on respectively on corresponding slide block.
6. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 3, is characterized in that: outside, described control zone is provided with connectivity port, and described connectivity port is connected to computer.
7. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 1, is characterized in that: described Imaging Study and the front, district of taking pictures are provided with two view windows.
8. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 7, is characterized in that: two described view window places are separately installed with UV optical filtering and Yellow filter mirror.
9. paper sweat fingerprint infrared emanation image acquisition system as claimed in claim 1, is characterized in that: described light-radiating lens is lens or ground glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007622.2U CN203720095U (en) | 2014-01-06 | 2014-01-06 | Infrared thermal radiation image acquisition system for sweat fingerprint on paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007622.2U CN203720095U (en) | 2014-01-06 | 2014-01-06 | Infrared thermal radiation image acquisition system for sweat fingerprint on paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720095U true CN203720095U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420007622.2U Expired - Fee Related CN203720095U (en) | 2014-01-06 | 2014-01-06 | Infrared thermal radiation image acquisition system for sweat fingerprint on paper |
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| CN (1) | CN203720095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527258A (en) * | 2014-10-24 | 2016-04-27 | 上海良相智能化工程有限公司 | Method for fast undamaged development of sweat and fingerprint on paper |
| CN105588825A (en) * | 2016-01-28 | 2016-05-18 | 公安部物证鉴定中心 | Thermotropic fluorescence detection equipment for latent fingerprints on paper |
-
2014
- 2014-01-06 CN CN201420007622.2U patent/CN203720095U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527258A (en) * | 2014-10-24 | 2016-04-27 | 上海良相智能化工程有限公司 | Method for fast undamaged development of sweat and fingerprint on paper |
| CN105588825A (en) * | 2016-01-28 | 2016-05-18 | 公安部物证鉴定中心 | Thermotropic fluorescence detection equipment for latent fingerprints on paper |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150106 |
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| EXPY | Termination of patent right or utility model |