CN203872262U - Laser rotary type polarization information acquisition apparatus - Google Patents
Laser rotary type polarization information acquisition apparatus Download PDFInfo
- Publication number
- CN203872262U CN203872262U CN201420294802.3U CN201420294802U CN203872262U CN 203872262 U CN203872262 U CN 203872262U CN 201420294802 U CN201420294802 U CN 201420294802U CN 203872262 U CN203872262 U CN 203872262U
- Authority
- CN
- China
- Prior art keywords
- control module
- laser
- polarization
- polarization image
- stepping motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Studio Devices (AREA)
Abstract
The utility model discloses a laser rotary type polarization information acquisition apparatus which comprises a polarized image acquisition module having a camera, a rotating lens arranged before the camera, a linkage device formed by the rotating lens and laser emission/reception devices and a stepping motor driving the linkage device; a master control module which is provided with an FPAG chip, outputs control signals by the processor of the FPAG chip to control the rotation of the stepping motor to adjust the linkage device and obtains target polarization image information when the reception end of the later reception device receives the laser emitted by the emitting end of the laser emission device; a display terminal which is connected with the master control to process and display the polarization image information; and a power supply connected with the polarization image acquisition module and the master control module to supply power. The laser rotary type polarization information acquisition apparatus acquires underwater target polarization information, displays images, and saves processing time and storage space.
Description
Technical field
The utility model relates to optical instrument technical field, relates in particular to a kind of laser rotary formula polarization information harvester towards submarine target.
Background technology
Under water in environment, because absorption and the scattering process of water body to light is larger, light energy decays rapidly in water, under water when the degree of depth of 40 meters, in natural daylight, only have green-yellow light to exist, imaging polarimetry technology semaphore from three-dimensional, be that light intensity, spectrum and space extend to 7 degree of freedom, be light intensity, spectrum, space, degree of polarization, polarization azimuth and polarization frequency, utilize under water polarization imaging technology can obtain the detailed polarization data signal of each polarization parameter gray-scale map and each observation station intuitively simultaneously.Therefore, based on polarization imaging equipment, polarization information collection under water will be had to wide application prospect in following undersea detection.
But in scene, when traditional collecting device is applied under water, cannot obtain detailed target information under water.Under this background, the utility model is for scene application demand under water, a kind of laser rotary formula polarization information harvester has been proposed, acquisition target polarization image that can be quick and easy, and more effective for characterizing polarization parameter and the computational methods thereof of target polarization signal.
Utility model content
In view of this, the present invention is directed to the above-mentioned or other defect existing in prior art, a kind of laser rotary formula polarization information harvester is proposed, its polarization image to submarine target gathers, passes through field programmable gate array (FPGA, Field-Programmable Gate Array) embedded processor is controlled each module, thus acquisition target polarization image that can be quick and easy.
In order to address the above problem, the utility model provides a kind of laser rotary formula polarization information acquisition and display device for underwater environment, system comprises CMOS camera, rotating lens (comprising 0 degree polarizer, 60 degree polarizers, 120 degree polarizers), circular minute surface paster, Laser emission/receiving system, FPGA (embedded NiosII processor), PC display screen, D/A digital to analog converter, RS232 serial line interface.Camera is at I
2under the control of C bus and trigger impulse, complete the information gathering to target image, image is stored in the view data buffer area of FPGA.Each control module of the NiosII processor based on embedded is controlled each module, acquisition module obtains target polarization information, store in the view data buffer area of FPGA, FPGA output port connects D/A converter, is then connected to by RS232 serial line interface processing, the demonstration of on PC, carrying out image.
Rotating lens in polarization image acquisition module before CMOS camera combines into linkage with Laser emission/receiving system, trigger step motor control polarizer angle by control module, ensure, when the Laser emission end of Laser emission/receiving system and receiving terminal, minute surface paster are during in same vertical plane, accurately to obtain required polarization angle image.
Laser rotary formula polarization information acquisition and display device comprises polarization image acquisition module, main control module, display terminal, power supply, equipment bucker.
Polarization image acquisition module comprises that CMOS camera, rotating lens combine into linkage with Laser emission/receiving system.Main control module comprises fpga chip, D/A converter, the RS232 serial line interface of embedded NiosII processor.Wherein embedded NiosII processor comprises acquisition control module, storage control module, and display control module completes the sequencing control of each module.In fpga chip, view data buffer area completes the storage to gathering image.Display terminal is PC, carries out processing and the demonstration of image information.Power supply is connected and powers with polarization image acquisition module, main control module.
Polarization acquisition module is connected with the input port of main control module FPGA, carries out the collection of polarization image under the control of acquisition control module; When acquisition module power cut-off, memory module receives feedback signal, by data/address bus, the polarization image of collection is stored into the view data buffer area of FPGA; Display control module receives feedback signal, and the data in buffer area are connected and carry out transfer of data with the COM port of PC through D/A converter, RS232 serial line interface output by FPGA output port.
Rotating lens comprises following part: with black swiveling wheel, 0 degree polarizer, 60 degree polarizers, 120 degree polarizers, the minute surface paster of bearing.It is mutually circumscribed that eyeglass is fixed on outward flange and the swiveling wheel of swiveling wheel, and center of lens line overwinding runner center, and the center line angle of three eyeglasses is 120 degree.Minute surface paster is attached on three center lines and swiveling wheel outside phase inscribe.
Rotating lens combines into linkage with Laser emission/receiving system, by the embedded NiosII processor of FPGA, acquisition module being sent to pulse-triggered stepping motor rotates, when the Laser emission end of Laser emission/receiving system and receiving terminal, minute surface paster are during in same vertical plane (receiving terminal receives the laser that transmitting terminal sends), the embedded NiosII processor of FPGA receives the pulse signal of linkage, NiosII processor calls interruption, stepping motor is stopped operating, send pulse triggering signal simultaneously, trigger CMOS camera and carry out IMAQ.
FPGA selects the EP3C40C7 model chip of Cyclonem series, and the embedded NiosII processor of chip, CMOS select MT9V032 model transducer, D/A converter to select THS8134A model chip, RS232 serial line interface to select MAX225 model.CMOS is connected with FPGA, and the output port of FPGA is connected with D/A converter, and RS232 serial line interface is connected with the COM port of PC, completes polarization information collection under water, transmission.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, below the specific embodiment by reference to the accompanying drawings of basis, the utility model is described in further detail, wherein:
Fig. 1 is laser rotary formula polarization information harvester structural representation of the present utility model;
Fig. 2 is the linkage structure chart of rotating lens and Laser emission/receiver in the utility model Fig. 1.
Embodiment
It is as follows that the utility model will be further described by reference to the accompanying drawings:
Fig. 1 is laser rotary formula polarization information harvester structural representation of the present utility model.As shown in Figure 1, laser rotary formula polarization information acquisition and display device, mainly comprises polarization image acquisition module, main control module, display terminal, power supply.Polarization image acquisition module comprises that rotating lens and Laser emission/reception form linkage, single CMOS camera.Main control module comprises fpga chip, and as the fpga chip of embedded NiosII processor, described processor completes the sequencing control function to modules, the polarization image of the view data buffer area storage of collected in FPGA.Display terminal comprises a D/A digital to analog converter, RS232 serial line interface and PC display.Supply module is connected with each module, and each module is powered.
Fig. 2 is the linkage structure chart of rotating lens and Laser emission/receiver in the utility model Fig. 1.As shown in Figure 2, described rotating lens combines into linkage with Laser emission/receiving system, and wherein, rotating lens comprises following part: with black swiveling wheel, 0 degree polarizer, 60 degree polarizers, 120 degree polarizers, the minute surface paster of bearing.
Wherein, 0 degree polarizer, 60 degree polarizers, 120 degree polarizers are eyeglass, and it is mutually circumscribed that each described eyeglass is fixed on outward flange and the swiveling wheel of swiveling wheel, and center of lens line overwinding runner center, and the center line angle of three eyeglasses is 120 degree.Minute surface paster is attached on three center lines and swiveling wheel outside phase inscribe.When laser goes out incident ray, minute surface is in the time of same vertical plane, and laser receiver receives signal, sends to pulse signal of FPGA, receives after pulse signal, and FPGA, to pulse signal of camera, triggers CMOS camera and obtains target information.While triggering CMOS camera, before camera lens, be respectively 0 degree polarizer, 60 degree polarizers, 120 degree polarizers, can accurately control polarization angle, obtain required image.
In fpga chip embedded processor, functional module comprises acquisition control module, storage control module, display control module.
Describe the function of each module below in detail:
Acquisition control module completes the control to polarization image acquisition module, after system energising, collection control maintains high level and makes stepping motor drive rotation of lens, in the time receiving the pulse signal of linkage, calls interrupt routine, produce pulse enable signal CMOS camera exposure, I simultaneously
2the transmission of the complete paired data of C bus and control signal.
Storage control module completes storage and the read functions of acquisition module view data.When polarization image acquisition module finishes IMAQ, acquisition control module transmitted signal, to storage control module, stores the image collecting in the view data buffer area in FPGA into.After the storage of view data finishes, storage control module transmitted is to display control module, and in carries out image data buffer area, image reads.
Display control module receives after the pulse signal of storage control module, and the image transmitting in buffer memory, to D/A converter, is then connected to PC by RS232 serial line interface and processes, shows.
Implementation method under water of the present utility model is specific as follows:
1) camera, rotating lens in adjusting device, makes Ear Mucosa Treated by He Ne Laser Irradiation between 0 degree polarizer and the inclined to one side sheet of 90 degree, presses mains switch, makes stepping motor, and fpga chip is init state.By the device being sealed in bucker, be placed in the waters of illumination abundance again, camera lens is aimed to selected target.
2) FPGA embedded processor acquisition control module is sent the rotation of pulse-triggered stepping motor, when the Laser emission end of Laser emission/receiving system and receiving terminal, minute surface paster are during in same vertical plane, be that receiving terminal receives the laser that transmitting terminal sends, FPGA embedded processor acquisition control module receives the pulse signal of linkage, described processor acquisition control module is called interruption, stepping motor is stopped operating, send pulse triggering signal simultaneously, trigger CMOS camera and carry out IMAQ, obtain 0 degree polarization image of scene.
3) interrupt routine calls after end, returns to main program, and repeating step (2) obtains 60 degree polarization photos of target.
4) interrupt routine calls after end, returns to main program, and repeating step (2) obtains 120 degree polarization photos of target.
5), when acquisition module end-of-job, acquisition control module sends a signal to image read-write control module, image read-write control module by the view data gathering through I
2c bus stores in the view data buffer area of FPGA.
6) after the storage of view data finishes, storage control module transmitted is to display control module, and in carries out image data buffer area, image reads.
7) display control module receives memory module feedback signal the image data transmission in view data buffer area is arrived to D/A converter, is then connected to PC by RS232 interface and processes, shows.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple equivalents to the technical solution of the utility model, these equivalents all belong to protection range of the present utility model.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
Claims (6)
1. a laser rotary formula polarization information harvester, it comprises:
Polarization image acquisition module, has a camera, be arranged on the rotating lens before described camera, described rotating lens and Laser emission/linkage of receiving system composition and drive the stepping motor of described linkage;
Main control module, there is FPAG chip, and rotate to adjust described linkage by stepping motor described in the processor output control signal control of described FPAG chip, when the receiving terminal of described laser receiver receives the laser that the transmitting terminal of described laser beam emitting device sends, can obtain target polarization image information;
Display terminal, connects described main control module, and for carrying out processing and the demonstration of described polarization image information;
Power supply, connects described polarization image acquisition module, described main control module and is connected, and for powering.
2. laser rotary formula polarization information harvester according to claim 1, it is characterized in that: described rotating lens comprises with the swiveling wheel of bearing, 0 degree polarizer, 60 degree polarizers, 120 degree polarizer and 3 minute surface pasters, described 0 degree polarizer, described 60 degree polarizers, described 120 degree polarizers are evenly fixed on the outward flange of described swiveling wheel, and described multiple minute surface pasters are evenly attached on swiveling wheel inner periphery.
3. laser rotary formula polarization information harvester according to claim 1, it is characterized in that: described main control module also comprises D/A converter, serial line interface, described processor also comprises acquisition control module, storage control module, display control module, buffer area.
4. laser rotary formula polarization information harvester according to claim 2, it is characterized in that: adjusting described linkage is the angle of rotating to control described polarizer by stepping motor described in the control signal control of described processor, when the Laser emission end of described Laser emission/receiving system and receiving terminal, described minute surface paster are during in same vertical plane, can obtain described target polarization image.
5. laser rotary formula polarization information harvester according to claim 3, it is characterized in that: polarization image acquisition module is connected with the input port of described fpga chip, carries out the collection of polarization image under the control of described acquisition control module by described camera;
When acquisition module power cut-off, described storage control module receives feedback signal, by data/address bus, the described polarization image gathering is stored into the described buffer area of fpga chip;
Described display control module receives feedback signal, and the data in described buffer area are connected and carry out transfer of data with the port of described display terminal through described D/A converter, described serial line interface output by described fpga chip output port.
6. laser rotary formula polarization information harvester according to claim 2, it is characterized in that: by described processor, described acquisition module is sent to pulse-triggered stepping motor and rotate, when the Laser emission end of Laser emission/receiving system and receiving terminal, minute surface paster are during in same vertical plane, described processor receives the pulse signal of linkage, described processor calls interruption, stepping motor is stopped operating, send pulse triggering signal simultaneously, trigger described camera and carry out the collection of described polarization image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294802.3U CN203872262U (en) | 2014-06-04 | 2014-06-04 | Laser rotary type polarization information acquisition apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294802.3U CN203872262U (en) | 2014-06-04 | 2014-06-04 | Laser rotary type polarization information acquisition apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872262U true CN203872262U (en) | 2014-10-08 |
Family
ID=51653181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294802.3U Expired - Fee Related CN203872262U (en) | 2014-06-04 | 2014-06-04 | Laser rotary type polarization information acquisition apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203872262U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534901A (en) * | 2018-02-09 | 2018-09-14 | 中国科学院长春光学精密机械与物理研究所 | Polarize robot scaling equipment |
| CN109995979A (en) * | 2019-04-09 | 2019-07-09 | 大连交通大学 | A kind of single channel quick-rotary type polarization image information acquisition device |
| CN112672008A (en) * | 2020-12-14 | 2021-04-16 | 杭州联吉技术有限公司 | Lens adjusting method and device |
-
2014
- 2014-06-04 CN CN201420294802.3U patent/CN203872262U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534901A (en) * | 2018-02-09 | 2018-09-14 | 中国科学院长春光学精密机械与物理研究所 | Polarize robot scaling equipment |
| CN108534901B (en) * | 2018-02-09 | 2020-08-21 | 中国科学院长春光学精密机械与物理研究所 | Polarization scaling device |
| CN109995979A (en) * | 2019-04-09 | 2019-07-09 | 大连交通大学 | A kind of single channel quick-rotary type polarization image information acquisition device |
| CN112672008A (en) * | 2020-12-14 | 2021-04-16 | 杭州联吉技术有限公司 | Lens adjusting method and device |
| CN112672008B (en) * | 2020-12-14 | 2022-09-06 | 杭州联吉技术有限公司 | Lens adjusting method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206226610U (en) | It is a kind of can panoramic shooting fish finding system | |
| CN104052967B (en) | Target depth figure is polarized under intelligent water and obtains system and method | |
| CN204044359U (en) | A kind of two-dimensional scan formula laser ranging system | |
| CN203872262U (en) | Laser rotary type polarization information acquisition apparatus | |
| CN204116603U (en) | For the laser radar apparatus of aerosol monitoring | |
| CN204948252U (en) | The rotary polarization information acquisition device of probe | |
| CN102520463B (en) | All-sky visible light cloud imaging system | |
| CN203310384U (en) | Three-dimensional point cloud scan model fitting device based on laser vision | |
| CN103869323B (en) | A kind of helmet-type coloured image sonar and formation method thereof | |
| WO2021027366A1 (en) | Method, device and system for detecting cell sheet of photovoltaic power station | |
| CN102819822B (en) | A kind of shortwave non refrigerating infrared imaging device | |
| CN102903406A (en) | Video inspection system of nuclear power station reactor pressure container | |
| CN103808311A (en) | Portable near-shore ocean wave observation system and method | |
| CN103414869B (en) | A kind of police window imaging Reconnaissance system | |
| CN205212941U (en) | Satellite sensing wild animal tracer | |
| CN109186770A (en) | A kind of multi-functional hemisphere sky polarized imaging system | |
| CN203872261U (en) | Underwater polarization calculation and image processing device based on DSP | |
| CN111023967B (en) | Three-dimensional acquisition equipment for inner wall of pipeline | |
| CN104202569A (en) | Distributed underwater low-light monitoring system | |
| CN203587223U (en) | A TDI infrared scanning imaging debugging apparatus | |
| CN204374448U (en) | Instrument is searched and rescued in water surface distance light location | |
| CN205317938U (en) | Intelligence laser rangefinder | |
| CN204790198U (en) | Photoelectronic imaging equipment under water | |
| CN204730809U (en) | A kind of structural light three-dimensional scanning and measuring apparatus | |
| CN208460065U (en) | Picture depth measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141008 Termination date: 20160604 |