CN109254006A - A kind of laser physical evidence exploration instrument - Google Patents
A kind of laser physical evidence exploration instrument Download PDFInfo
- Publication number
- CN109254006A CN109254006A CN201811280456.2A CN201811280456A CN109254006A CN 109254006 A CN109254006 A CN 109254006A CN 201811280456 A CN201811280456 A CN 201811280456A CN 109254006 A CN109254006 A CN 109254006A
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- Prior art keywords
- camera
- physical evidence
- exploration instrument
- laser
- camera bellows
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- 230000005540 biological transmission Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 13
- 238000000605 extraction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- WFFZGYRTVIPBFN-UHFFFAOYSA-N 3h-indene-1,2-dione Chemical compound C1=CC=C2C(=O)C(=O)CC2=C1 WFFZGYRTVIPBFN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- FEMOMIGRRWSMCU-UHFFFAOYSA-N ninhydrin Chemical compound C1=CC=C2C(=O)C(O)(O)C(=O)C2=C1 FEMOMIGRRWSMCU-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 239000003128 rodenticide Substances 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of laser physical evidence exploration instrument, comprising: camera bellows shell, camera, the camera are housed in the camera bellows shell；Lamp source, the lamp source is housed in the camera bellows shell and the neighbouring camera, for providing light source to the camera；Several eyeglasses, several eyeglasses are housed in the camera bellows shell, and several eyeglasses are at least arranged to three groups, to form at least three different image paths；Laser calibrator, the laser calibrator are mounted on the camera；Main casing, the main casing is for accommodating the camera bellows shell；Master board, the master board are housed in the main casing, and are electrically connected with the camera and lighting board.Laser physical evidence exploration instrument of the invention at work, provide it is available there are many image path, can be used for according on different situation difference objects footprint or trace, bloodstain, dry up the traces such as water stain, footprint, and the result extracted is apparent lossless.
Description
Technical field
The present invention relates to photoelectric instrument field more particularly to a kind of laser physical evidence exploration instruments.
Background technique
Laser physical evidence exploration instrument is public security organs, procuratorial organs and people's court, Si Deng department search site, the important equipment for finding material evidence trace, laser
Physical evidence exploration instrument is to wait characteristic Induceds trace evidence to send out well using the brightness height and monochromaticjty of laser using laser as excitation light source
Light, the nondestructive testing especially suitable for public security scene various material evidence searches and fingerprint.The various biological traces of nondestructive testing, such as crime
The search discovery of the biological materials such as seminal stain, vaginal fluid, saliva, bloodstain, urine mark, the bone tooth fragment at scene；It is lossless straight
Connect the impression of the hand fingerprint shown on the object of part, such as spot wall, packing box semipermeability object fingerprint surface, keep the seal
The lossless search of trace and show；Nondestructive testing, which shows or smokes through indandione rodenticide, ninhydrin or 502 glue etc., shows processed sweat hand
Print etc. shows, and fluorescent powder brush shows fingerprint manifestation；Extravasated blood, bite mark after examining personal injury；It examines residual to gunslinging or explosive
Quality testing is stayed to test, the search discovery etc. of the substances such as suspicious fiber in scene.
For existing complex background footprint extraction system, its shortcoming is that when discovery material evidence, since intensity of illumination is inadequate
Color background complexity light background complexity causes clarity inadequate, it is difficult to extract footprint, cause out optical purity it is not high, veiling glare is more,
It is not easy to take pictures；The volume of followed by instrument is big, weight is big, is primarily due to LED calorific value height itself, and long working generates
High temperature influence whether the stability of instrument itself, therefore, complex background footprint extraction system is in design in view of heat dissipation function
The importance of energy, generally increases thermal diffusivity using the fuselage cover structure of large space, what is designed in this way reconnoitres instrument body
Product weight is big, it has not been convenient to carry, inconvenience uses on site.
Summary of the invention
The laser physical evidence exploration instrument of the lossless extraction of trace is carried out the object of the present invention is to provide a kind of alternative light source.
To achieve the above object, the technical solution of the present invention is to provide a kind of laser physical evidence exploration instruments, comprising: camera bellows shell
Body, camera, the camera are housed in the camera bellows shell；Lamp source, the lamp source are housed in the camera bellows shell and neighbouring
The camera, for providing light source to the camera；Several eyeglasses, several eyeglasses are housed in the camera bellows shell, institute
It states several eyeglasses and is at least arranged to three groups, to form at least three different image paths；Laser calibrator, the laser
Calibrator is mounted on the camera；Main casing, the main casing is for accommodating the camera bellows shell；Master board, the master
Control panel is housed in the main casing, and is electrically connected with the camera and lighting board.
Further, the laser physical evidence exploration instrument further includes transmission system, the camera bellows shell and the transmission system
Connection is to receive driving force.
Further, the transmission system includes sliding rail, and the camera bellows shell is erected on the sliding rail；Screw rod, it is described
Camera bellows shell is connected on the screw rod by connector；Stepper motor, the stepper motor are connect with the screw rod, the step
The camera bellows shell movement is driven by the screw rod into motor.
Further, the transmission system further includes hand-reset wheel, and the hand-reset wheel is connect with the screw rod, is used
It is resetted in manually controlling camera bellows shell.
Further, the sliding rail is mute ball slide rail, and the screw rod is mute ball screw.
Further, the number of the lamp source is at least two, and the laser physical evidence exploration instrument further includes lighting board, institute
It states lighting board to be housed in the camera bellows shell and adjacent at least two lamp source, the lighting board is used for
An at least lamp source is selected to provide light source to the camera when work.
Further, the laser physical evidence exploration instrument further includes battery, and the battery container is described in the main casing
Battery is used to power to the master board and the lighting board.
Further, the laser physical evidence exploration instrument further includes radio receiving transmitting module, and the radio receiving transmitting module is housed in
In the main casing.
Further, the laser physical evidence exploration instrument further includes foot pad, and the foot pad is arranged in the main casing bottom.
Further, the laser physical evidence exploration instrument further includes handle, and the handle is arranged at the top of the main casing.
The invention has the following advantages: laser physical evidence exploration instrument of the invention is at work, provide that there are many imagings
Path is available, can be used for according on different situation difference objects footprint or trace, bloodstain, dry up water stain, footprint etc.
The extraction of trace, and the result extracted is apparent lossless.Further, laser physical evidence exploration instrument of the invention can directly exist
Model selection, editor directly extraction is carried out on mobile terminal device to be imaged onto mobile device, it is more simple and convenient for use.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.
Fig. 1 is the structural schematic diagram of laser physical evidence exploration instrument embodiment of the invention.
Fig. 2 is camera bellows housing interior structure schematic diagram in laser physical evidence exploration instrument embodiment of the invention.
Fig. 3 is the bottom view of laser physical evidence exploration instrument of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless otherwise will not be explained in an idealized or overly formal meaning by specific definitions.
As shown in FIG. 1, FIG. 1 is the structural schematic diagrams of laser physical evidence exploration instrument embodiment of the invention.Laser physical evidence exploration
Instrument is made of imaging system, transmission system and control system on the whole.Imaging system is the core system of laser physical evidence exploration instrument,
It is mainly used for that live trace is imaged, to obtain clear reliable material evidence image.Transmission system is connect with imaging system, main
It is used to that imaging system to be driven to advance along preset track, in preset speed.Control system is respectively at imaging system and control
System electrical connection, instructs for sending to the two, controls the work of the two.For realizing the main object of the present invention, pass
Dynamic system is optional system, therefore, in the simple occasion of some scene traces and the limited occasion in space, omits transmission system
Still it can reach the main object of the present invention.It describes in detail individually below to three systems.
Referring to fig. 2, Fig. 2 is camera bellows housing interior structure schematic diagram in laser physical evidence exploration instrument embodiment of the invention.Secretly
It tank shell 2 and is housed in 2 internal component of camera bellows shell and constitutes imaging system in the present embodiment.Specifically, camera bellows shell 2
Contain camera 21, lamp source 22, several eyeglasses 23 and laser calibrator 24.Wherein, lamp source 22 is positioned adjacent to the position of camera 21
It sets, for providing light source to camera 21.As a preferred embodiment, the lamp source 22 of the present embodiment includes two lamp sources 221
With 222, lighting board 28 is set in two lamp sources 221 and 222 neighbouring position, the lighting board 28 is at work
At least lamp source in two lamp sources 221 and 222 is selected to provide light source to camera 21.In other embodiments, the number of lamp source 22
Mesh can further increase according to the needs of actual conditions, if be able to satisfy the supply of power supply and the demand that effectively controls i.e.
Can, it is not limited here.As a preferred embodiment, several eyeglasses 23 of the present embodiment are configured to three groups, thus shape
At three different image paths.Laser calibrator 24 is mounted on camera 21, with independent laser calibration path.Imaging
System passes through laser calibrator 24 at work and is calibrated, so as to select imaging effect in three image paths optimal
One paths are imaged.Due to having preset three image paths, laser physical evidence of the invention in imaging systems
Exploration instrument can be used for according on different situation difference objects footprint or trace, bloodstain, the traces such as water stain, footprint that dry up mention
It takes, and the result extracted is apparent lossless.In other embodiments, the number of image path can need according to the actual situation
It further increases, as long as being able to satisfy the space layout of eyeglass, it is not limited here.
Laser physical evidence exploration instrument of the invention further includes main casing 1 combined with Figure 1 and Figure 2, and the main casing 1 is dark for accommodating
Tank shell 2 makes the two become an organic whole.Contain master board 11 in main casing 1, master board 11 respectively with phase
Machine 21 and lighting board 28 are electrically connected, for controlling the selected image path of camera 21, and control lighting board 28
Selected light source is that camera 21 selects optimal path to be imaged.In the present embodiment, contained in laser physical evidence exploration instrument
Battery (not shown), preferably lithium battery.Battery is used to power to master board 11 and the lighting board 22, makes instrument
Device being capable of portable use.In other disposable embodiments, laser physical evidence exploration instrument can also be by way of external power supply
It is powered, specific structure is similar with existing product structure, and details are not described herein again.In the present embodiment, in laser physical evidence exploration instrument
It is further provided with radio receiving transmitting module 13, which is electrically connected with master board 11, radio receiving transmitting module 13
The control signal of master board 11 is received, imaging data is transferred to and laser object by (such as WIFI) by way of wireless telecommunications
On the mobile terminal that card exploration instrument matches.Mobile terminal can make the smart machines such as laptop, smart phone, herein not
It limits.Preferably, 1 bottom of main casing is additionally provided with foot pad 18, so that laser physical evidence exploration instrument be effectively prevent to produce at work
Raw vibration, and then influence picture imaging effect.Further, the top of main casing 1 is additionally provided with handle 19, in order to user
It carries.
In conjunction with Fig. 1 and Fig. 3, as a preferred embodiment of the invention, transmission is additionally provided in laser physical evidence exploration instrument
System 3, transmission system 3 are connect to export driving force to it with camera bellows shell 2, make camera bellows shell 2 along preset track with default
Speed advance, transmission system 3 to camera bellows shell 2 carry out fine position, move it to most suitable position and to the greatest extent may be used with obtaining
It can clear lossless image.Transmission system 3 specifically includes sliding rail 31, screw rod 32 and stepper motor 33.Wherein, 2 frame of camera bellows shell
It is located on sliding rail 31, camera bellows shell 2 is limited when moving with the track and endpoint of sliding rail 31.The side wall of camera bellows shell 2 passes through connection
Part 34 is connect with screw rod 32, and stepper motor 33 is connect with screw rod 32, in this way, stepper motor 33 can be driven secretly by screw rod 32
Tank shell 2 is advanced along sliding rail 31 along preset track in preset speed.Transmission system 3 further includes hand-reset wheel
35, which connect with screw rod 32, and user can control camera bellows shell 2 by hand-reset wheel 35 and reset, so that
Reset more facilitates fast.In the present embodiment, sliding rail 31 is preferably mute ball slide rail, and screw rod 32 is preferably mute ball wire
Bar is attached between transmission system by high-precision mandrel connector, and above-mentioned component and connection can be effectively reduced in operational process
Noise and shake, it is finer and smoother clear to make picture is imaged.
The invention has the following advantages: laser physical evidence exploration instrument of the invention is at work, provide that there are many imagings
Path is available, can be used for according on different situation difference objects footprint or trace, bloodstain, dry up water stain, footprint etc.
The extraction of trace, and the result extracted is apparent lossless.Further, laser physical evidence exploration instrument of the invention can directly exist
Model selection, editor directly extraction is carried out on mobile terminal device to be imaged onto mobile device, it is more simple and convenient for use.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of laser physical evidence exploration instrument characterized by comprising
Camera bellows shell,
Camera, the camera are housed in the camera bellows shell；
Lamp source, the lamp source is housed in the camera bellows shell and the neighbouring camera, for providing light source to the camera；
Several eyeglasses, several eyeglasses are housed in the camera bellows shell, and several eyeglasses are at least arranged to three groups, from
And form at least three different image paths；
Laser calibrator, the laser calibrator are mounted on the camera；
Main casing, the main casing is for accommodating the camera bellows shell；
Master board, the master board are housed in the main casing, and are electrically connected respectively with the camera and lighting board
It connects.
2. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that it further include transmission system, it is described dark
Tank shell is connect with the transmission system to receive driving force.
3. a kind of laser physical evidence exploration instrument according to claim 2, which is characterized in that the transmission system includes
Sliding rail, the camera bellows shell are erected on the sliding rail；
Screw rod, the camera bellows shell are connected on the screw rod by connector；
Stepper motor, the stepper motor are connect with the screw rod, and the stepper motor drives the camera bellows by the screw rod
Shell movement.
4. a kind of laser physical evidence exploration instrument according to claim 3, which is characterized in that the transmission system further includes manual
Reseting wheel, the hand-reset wheel are connect with the screw rod, are resetted for manually controlling camera bellows shell.
5. a kind of laser physical evidence exploration instrument according to claim 3, which is characterized in that the sliding rail is sliding for mute ball
Rail, the screw rod are mute ball screw.
6. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that the number of the lamp source is at least
Two, the laser physical evidence exploration instrument further includes lighting board, the lighting board be housed in the camera bellows shell and with
At least two lamp source is adjacent, and the lighting board for selecting an at least lamp source to provide light to the camera at work
Source.
7. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that further include battery, the battery is received
Hold in the main casing, the battery is used to power to the master board and the lighting board.
8. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that it further include radio receiving transmitting module, institute
Radio receiving transmitting module is stated to be housed in the main casing and be electrically connected with the master board.
9. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that further include foot pad, the foot pad is set
It sets in the main casing bottom.
10. a kind of laser physical evidence exploration instrument according to claim 1, which is characterized in that further include handle, the handle is set
It sets at the top of the main casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280456.2A CN109254006A (en) | 2018-10-30 | 2018-10-30 | A kind of laser physical evidence exploration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280456.2A CN109254006A (en) | 2018-10-30 | 2018-10-30 | A kind of laser physical evidence exploration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109254006A true CN109254006A (en) | 2019-01-22 |
Family
ID=65044011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811280456.2A Pending CN109254006A (en) | 2018-10-30 | 2018-10-30 | A kind of laser physical evidence exploration instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN109254006A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003656A (en) * | 1973-05-10 | 1977-01-18 | Stephen Richard Leventhal | Fingerprint scanning device |
| US5308966A (en) * | 1986-08-08 | 1994-05-03 | Norand Corporation | Hand-held instant bar code reader having automatic focus control for operation over a range of distances |
| US5680205A (en) * | 1996-08-16 | 1997-10-21 | Dew Engineering And Development Ltd. | Fingerprint imaging apparatus with auxiliary lens |
| CN201666872U (en) * | 2010-03-31 | 2010-12-08 | 上海市公安局物证鉴定中心 | Dual wavelength laser physical evidence showing instrument |
| CN102175643A (en) * | 2011-03-18 | 2011-09-07 | 苏州晓松科技开发有限公司 | Laser physical evidence exploration instrument |
| CN105892003A (en) * | 2016-06-15 | 2016-08-24 | 长安大学 | Automatic focusing device and method for line-scan digital camera |
| CN106641847A (en) * | 2017-01-20 | 2017-05-10 | 苏州晓松科技开发有限公司 | LED (Light Emitting Diode) multispectral footprint exploration light source |
| CN206990446U (en) * | 2017-06-22 | 2018-02-09 | 朱双全 | A kind of integrated form biology verification of traces instrument |
-
2018
- 2018-10-30 CN CN201811280456.2A patent/CN109254006A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003656A (en) * | 1973-05-10 | 1977-01-18 | Stephen Richard Leventhal | Fingerprint scanning device |
| US5308966A (en) * | 1986-08-08 | 1994-05-03 | Norand Corporation | Hand-held instant bar code reader having automatic focus control for operation over a range of distances |
| US5680205A (en) * | 1996-08-16 | 1997-10-21 | Dew Engineering And Development Ltd. | Fingerprint imaging apparatus with auxiliary lens |
| CN201666872U (en) * | 2010-03-31 | 2010-12-08 | 上海市公安局物证鉴定中心 | Dual wavelength laser physical evidence showing instrument |
| CN102175643A (en) * | 2011-03-18 | 2011-09-07 | 苏州晓松科技开发有限公司 | Laser physical evidence exploration instrument |
| CN105892003A (en) * | 2016-06-15 | 2016-08-24 | 长安大学 | Automatic focusing device and method for line-scan digital camera |
| CN106641847A (en) * | 2017-01-20 | 2017-05-10 | 苏州晓松科技开发有限公司 | LED (Light Emitting Diode) multispectral footprint exploration light source |
| CN206990446U (en) * | 2017-06-22 | 2018-02-09 | 朱双全 | A kind of integrated form biology verification of traces instrument |
Non-Patent Citations (1)
| Title |
|---|
| 敖日其冷: "《中美犯罪现场勘查比较研究》", 上海人民出版社, pages: 217 - 222 * |
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Application publication date: 20190122 |
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