CN208239616U - A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather - Google Patents
A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather Download PDFInfo
- Publication number
- CN208239616U CN208239616U CN201820937818.XU CN201820937818U CN208239616U CN 208239616 U CN208239616 U CN 208239616U CN 201820937818 U CN201820937818 U CN 201820937818U CN 208239616 U CN208239616 U CN 208239616U
- Authority
- CN
- China
- Prior art keywords
- signal
- laser
- laser radar
- haze weather
- personal computer
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model relates to air monitoring technical fields, the laser radar of in particular a kind of anti-stop signal saturation distortion of heavy haze weather, it include: laser emission element, the laser emission element emits laser signal to atmosphere target, reflects through atmosphere target and generates echo-signal；Laser pick-off unit receives the echo-signal, and will be in echo-signal feeding laser radar signal automatic recognition system, particulate matter channel detection unit；The saturation signal control that the industrial personal computer is handled according to laser radar signal automatic recognition system communicates the signal automatic straightening system of connection；The signal of the automatic straightening system response industrial personal computer input, and the laser control for controlling serial ports connection therewith generates the signal of device control laser power and capture card range Auto-matching processed.The utility model solves the problems, such as heavy fog haze weather signal saturation distortion, while by corresponding correction algorithm, eliminating error influences, and obtains accurate pollutant concentration under heavy fog haze weather condition.
Description
Technical field
The utility model relates to air monitoring technical field, specially a kind of anti-stop signal saturation of heavy haze weather is lost
Genuine laser radar.
Background technique
Effect of the laser radar in terms of atmospheric sounding environmental pollution is increasing.China faces at present compares large particle
And ozone pollution.Especially northern area, weight haze weather happen occasionally.Laser radar can be provided as active remote sensing tool
The distribution and variation of the extinction coefficient and backscattering coefficient solid space of aerosol, at present first meeting obtain environmental protection, meteorology and grind
Study carefully the attention of department.But upper the problem of often will appear signal saturation distortion was applied in China, cause inversion result to be distorted, obtains
Atmosphere stereoscopic monitoring data when less than weight haze weather.In order to solve asking for laser radar heavy fog haze weather signal saturation distortion
Topic, proposes a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather for this problem.
Utility model content
The purpose of this utility model is to provide a kind of laser radars of heavy anti-stop signal saturation distortion of haze weather, with solution
Certainly the problems mentioned above in the background art.The laser radar of the anti-stop signal saturation distortion of heavy haze weather, which has, solves weight
The problem of haze weather signal saturation distortion, while by corresponding correction algorithm, eliminating error influences, and obtains weight haze weather
Under the conditions of accurate pollutant concentration the characteristics of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather characterized by comprising
Laser emission element, the laser emission element emit laser signal to atmosphere target, reflect and produce through atmosphere target
Raw echo-signal；
Laser pick-off unit receives the echo-signal, and echo-signal is sent into laser radar signal automatic identification
In system, particulate matter channel detection unit；
The laser radar signal automatic recognition system, which is understood automatic identification saturation signal and handled, uploads to spi bus therewith
The industrial personal computer of connection；
Received echo wave signal acquisition, storage are uploaded to and communicate connection by the particulate matter channel detection unit
Industrial personal computer；
The industrial personal computer two-way communication link has data server；And the industrial personal computer is known automatically according to laser radar signal
The saturation signal control of other system processing communicates the signal automatic straightening system of connection；
The signal of the automatic straightening system response industrial personal computer input, and the laser control for controlling serial ports connection therewith generates system
The signal of device control laser power and capture card range Auto-matching；
The laser emission element receives and responds the control signal that the laser controller of serial communication therewith is sent.
Preferably, the laser emission element uses Na:YAG laser, the laser energy of Na:YAG laser transmitting
Greater than 1mJ.
Preferably, the laser radar signal automatic recognition system includes data acquisition unit, target's feature-extraction unit
And data processing unit, in which: the data acquisition unit detects echo-signal whole process sampled data, the data processing list
Member receives the data acquisition unit sampled data of serial communication therewith and handles, and transfers the data service for communicating connection
Device, the target's feature-extraction unit communicate to connect data server data acquisition unit and data processing unit respectively.
Preferably, the particulate matter channel detection unit includes collecting lens, sensor and data acquisition module, wherein instead
Laser signal is presented by collecting lens to sensor, the sensor connects data acquisition module, converts the signal into electric signal simultaneously
It send to the industrial personal computer communicated.
Preferably, the automatic straightening system include frequency mixer, phase detector, coherent oscillator, A/D converter and
Cancelling in digits device, in which: in industrial personal computer, the phase detector has two groups, is separately connected mixing for the frequency mixer serial connection
Device, wherein one group of phase detector connects coherent oscillator, the coherent oscillator connects another group by 90 ° of phase shifters of connection
Phase detector, the A/D converter phase detector connection, the cancelling in digits device are connected to A/D converter, the A/D
Cancelling in digits device is connected in series in laser controller.
Preferably, the data server uses RAID disk array, and RAID disk array is hung by hard disk controller
It is downloaded on industrial personal computer.
Compared with prior art, the utility model has the beneficial effects that laser radar executes just under general weather condition
Normal detection mode, industrial personal computer control carry out data inversion according to normal inversion algorithm.When weight haze weather occurs, laser radar
Signal automatic recognition system meeting automatic identification saturation signal passes through the parameter that built-in system is arranged and executes signal automatic straightening system
System by control laser power and capture card range Auto-matching, and calls laser thunder under built-in system heavy fog haze weather condition
It up to inversion algorithm, eliminates and changes laser power and capture card range bring mode error, while under the conditions of counterweight haze weather
Laser radar Multiple Scattering carries out secondary correction, eliminates error.Laser radar solves asking for heavy fog haze weather signal saturation distortion
Topic, while by the correction algorithm of response, eliminating error influences, and obtains accurate pollutant concentration under heavy fog haze weather condition.
Detailed description of the invention
Fig. 1 is the utility model structural principle block diagram；
Fig. 2 is the utility model laser radar signal automatic recognition system functional block diagram；
Fig. 3 is the utility model particulate matter channel detection functional block diagram；
Fig. 4 is the utility model automatic straightening system principle diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1~4 are please referred to, the utility model provides a kind of technical solution:
A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather, comprising:
Laser emission element, the laser emission element emit laser signal to atmosphere target, reflect and produce through atmosphere target
Raw echo-signal；Laser pick-off unit receives the echo-signal, and echo-signal feeding laser radar signal is known automatically
In other system, particulate matter channel detection unit；The laser radar signal automatic recognition system meeting automatic identification saturation signal is simultaneously
Processing uploads to the industrial personal computer of spi bus connection therewith；The particulate matter channel detection unit by received echo wave signal acquisition,
Storage, and upload to the industrial personal computer for communicating connection；The industrial personal computer two-way communication link has data server；And the work
The saturation signal control that control machine is handled according to laser radar signal automatic recognition system communicates the signal automatic straightening of connection
System；The signal of the automatic straightening system response industrial personal computer input, and the laser control for controlling serial ports connection therewith generates device processed
Control the signal of laser power and capture card range Auto-matching；The laser emission element receives and responds serial communication therewith
Laser controller send control signal.The laser emission element uses Na:YAG laser, Na:YAG laser hair
The laser energy penetrated is greater than 1mJ.The laser radar signal automatic recognition system includes data acquisition unit, target's feature-extraction
Unit and data processing unit, in which: the data acquisition unit detects echo-signal whole process sampled data, at the data
Reason unit receives the data acquisition unit sampled data of serial communication therewith and handles, and transfers the data clothes for communicating connection
Business device, the target's feature-extraction unit communicate to connect data server data acquisition unit and data processing unit respectively.
The particulate matter channel detection unit includes collecting lens, sensor and data acquisition module, and wherein feedback laser signal passes through
For collecting lens to sensor, the sensor connects data acquisition module, converts the signal into electric signal and send to communicating
Industrial personal computer.The automatic straightening system includes frequency mixer, phase detector, coherent oscillator, A/D converter and cancelling in digits
Device, in which: the frequency mixer serial connection is in industrial personal computer, and the phase detector has two groups, is separately connected frequency mixer, wherein one
Group phase detector connects coherent oscillator, and the coherent oscillator connects another group of phase detection by 90 ° of phase shifters of connection
Device, the A/D converter phase detector connection, the cancelling in digits device are connected to A/D converter, the A/D cancelling in digits
Device is connected in series in laser controller.The data server uses RAID disk array, and RAID disk array passes through hard disk
Controller is mounted on industrial personal computer.
Laser controller is controlled laser emission element work and issued using QT118 chip as the FPGA control panel that core is developed to swash
Light pulse signal, laser emission element are made using the laser source of anhydrous air-cooled laser source output 355nm/532nm/1064nm wavelength
For the signal of detection, emitted by reflecting mirror into atmosphere target after collimator and extender mirror, obtain echo-signal by scattering, swashed
Optical radar executes normal detection mode under general weather condition, and radar carries out data inversion according to normal inversion algorithm.Echo
Signal is received by laser pick-off unit, and Cassegrain telescope or the combination of 100mm-200mm can be used in laser pick-off unit
Lens receive, and are then delivered to beam splitting system, and beam splitting system is made of dichroscope and narrowband mating plate, thus obtain temperature signal,
Temperature signal, moisture signal pass through photoelectric conversion module, and the amplifying circuit acquisition and amplification as built in E/O conversion module and its are deposited
Storage；Laser emission element: Na:YAG laser emits laser signal, and laser energy is greater than 1mJ；；The particle of irradiation in an atmosphere
Scattered signal is generated on object, scattered signal is received by laser pick-off unit, and is sent to the sensing of particulate matter channel detection unit
On device, the signal experienced is passed through data acquisition module such as ADAM-4000 mould using 438B type PD optical sensor by sensor
Block is converted into electric signal, can measure the occurrence quantity of pulse, and atmospheric signal profile can be obtained by amplifying and analyzing circuit；Institute
Industrial personal computer is stated using embedded IP C610L industrial personal computer, data acquisition module, photoelectric conversion module signal can be read out and
Processing, embedded IP C610L industrial personal computer, video card: NVIDIA G210/CPU:I3/ memory: 8G/ hard disk: 1T/6 serial ports；Volume
It is small, arithmetic speed is fast, built-in inverting shows that software has the function of virtual oscillography function device, reading/preservation data and waveform show/
Spectrum analysis function.When weight haze weather occurs, laser radar signal automatic recognition system meeting automatic identification saturation signal: number
The echo-signal after laser signal scattering is penetrated according to acquisition unit acquisition Laser emission single-shot, obtains echo full distance sampled data, so
It is sent into data processing unit TMS320C31 digital signal processor afterwards, completes the testing result of atmosphere target echo-signal, then
It is sent in data server, testing result is read by the target signature software control target's feature-extraction unit analysis in it,
Then saturation signal is identified by TMS320C31 digital signal processor, letter is executed by the parameter of the industrial personal computer setting communicated
Number automatic straightening system: signal automatic straightening system is received using frequency mixer by the reflected echo letter of atmosphere target
Number, being sent into phase detector becomes zero intermediate frequency signals, and zero intermediate frequency signals are transformed into digital signal by A/D converter and are sent to number
Canceller extracts effective atmosphere target echo signal so that effective clutter reduction, removes the ambient noise of echo-signal；Pass through
The capture card range Auto-matching that industrial personal computer control Laser control unit control laser power is connected with industrial personal computer bus, wherein adopting
The signal that truck connects laser radar signal automatic recognition system, particulate matter channel detection unit uploads, and call weight haze sky
Laser radar inversion algorithm under the conditions of gas is eliminated and changes laser power and capture card range bring mode error, while counterweight
Laser radar Multiple Scattering carries out secondary correction under the conditions of haze weather, eliminates error.The laser radar solves weight haze weather
The problem of signal saturation distortion, while by the correction algorithm of response, eliminating error influences, and obtains smart under heavy fog haze weather condition
True pollutant concentration.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather characterized by comprising
Laser emission element, the laser emission element emit laser signal to atmosphere target, generate back through atmosphere target reflection
Wave signal；
Laser pick-off unit, receives the echo-signal, and by echo-signal be sent into laser radar signal automatic recognition system,
In particulate matter channel detection unit；
The laser radar signal automatic recognition system meeting automatic identification saturation signal and processing upload to spi bus therewith and connect
Industrial personal computer；
Received echo wave signal acquisition, storage are uploaded to the work for communicating connection by the particulate matter channel detection unit
Control machine；
The industrial personal computer two-way communication link has data server；And the industrial personal computer is according to laser radar signal automatic identification system
The saturation signal control of system processing communicates the signal automatic straightening system of connection；
The signal of the automatic straightening system response industrial personal computer input, and the laser control for controlling serial ports connection therewith generates device control processed
The signal of laser power processed and capture card range Auto-matching；
The laser emission element receives and responds the control signal that the laser controller of serial communication therewith is sent.
2. a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather according to claim 1, it is characterised in that:
The laser emission element uses Na:YAG laser, and the laser energy of Na:YAG laser transmitting is greater than 1mJ.
3. a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather according to claim 1, it is characterised in that:
The laser radar signal automatic recognition system includes data acquisition unit, target's feature-extraction unit and data processing list
Member, in which: the data acquisition unit detects echo-signal whole process sampled data, and the data processing unit receives serial ports therewith
The data acquisition unit sampled data of communication is simultaneously handled, and transfers the data server for communicating connection, the target signature
Extraction unit communicates to connect data server data acquisition unit and data processing unit respectively.
4. a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather according to claim 1, it is characterised in that:
The particulate matter channel detection unit includes collecting lens, sensor and data acquisition module, and wherein feedback laser signal passes through
For collecting lens to sensor, the sensor connects data acquisition module, converts the signal into electric signal and send to communicating
Industrial personal computer.
5. a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather according to claim 1, it is characterised in that:
The automatic straightening system includes frequency mixer, phase detector, coherent oscillator, A/D converter and cancelling in digits device,
In: the frequency mixer serial connection is in industrial personal computer, and the phase detector has two groups, is separately connected frequency mixer, wherein one group of phase
Position wave detector connects coherent oscillator, and the coherent oscillator connects another group of phase detector, institute by 90 ° of phase shifters of connection
The connection of A/D converter phase detector is stated, the cancelling in digits device is connected to A/D converter, and the A/D cancelling in digits device is serial
It is connected to laser controller.
6. a kind of laser radar of heavy anti-stop signal saturation distortion of haze weather according to claim 1, it is characterised in that:
The data server uses RAID disk array, and RAID disk array is mounted on industrial personal computer by hard disk controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820937818.XU CN208239616U (en) | 2018-06-15 | 2018-06-15 | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820937818.XU CN208239616U (en) | 2018-06-15 | 2018-06-15 | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239616U true CN208239616U (en) | 2018-12-14 |
Family
ID=64574410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820937818.XU Active CN208239616U (en) | 2018-06-15 | 2018-06-15 | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562910A (en) * | 2018-06-15 | 2018-09-21 | 安徽科创中光科技有限公司 | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather |
| CN111195782A (en) * | 2020-03-18 | 2020-05-26 | 大族激光科技产业集团股份有限公司 | Control method and system for improving precision of laser dynamic cutting of coiled material |
-
2018
- 2018-06-15 CN CN201820937818.XU patent/CN208239616U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562910A (en) * | 2018-06-15 | 2018-09-21 | 安徽科创中光科技有限公司 | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather |
| CN111195782A (en) * | 2020-03-18 | 2020-05-26 | 大族激光科技产业集团股份有限公司 | Control method and system for improving precision of laser dynamic cutting of coiled material |
| CN111195782B (en) * | 2020-03-18 | 2022-02-11 | 大族激光科技产业集团股份有限公司 | Control method and system for improving precision of laser dynamic cutting of coiled material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Douglas et al. | Finding leaves in the forest: the dual-wavelength Echidna lidar | |
| Althausen et al. | Portable Raman lidar PollyXT for automated profiling of aerosol backscatter, extinction, and depolarization | |
| CA2437897C (en) | Lidar system and method | |
| CN105911562B (en) | A kind of three-dimensional scanning type many reference amounts laser radar system for environmental monitoring | |
| CN108627812A (en) | A kind of laser radar atmospheric visibility measurement method and device | |
| CN104122562B (en) | Multiband Raman fluorescent laser radar system | |
| CN106646429B (en) | A kind of device and method of the self-calibration geometrical factor for laser radar | |
| US20100280765A1 (en) | Sensing using polarization diversity and wavelength dependent backscatter | |
| CN105911559A (en) | Laser radar system based on visible light-near infrared-short wave infrared bands | |
| CN208239616U (en) | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather | |
| US11385335B2 (en) | Multi-threshold LIDAR detection | |
| WO2010051615A1 (en) | Return pulse shape analysis for falling edge object discrimination of aerosol lidar | |
| CN107688187B (en) | Target detection laser radar based on spatial wavelength coding | |
| CN110161280B (en) | Hybrid detection Doppler laser radar wind speed measurement system and measurement method thereof | |
| CN107462900A (en) | Gas componant detecting laser radar based on wavelength-tunable laser source | |
| CN115494479B (en) | Single photon radar system based on pulse sequence extraction and 3D imaging method | |
| Ponn et al. | Systematic analysis of the sensor coverage of automated vehicles using phenomenological sensor models | |
| CN110058210A (en) | A kind of multi-wavelength laser radar based on wavelength-division multiplex | |
| CN115702364A (en) | Radar system, mobile equipment and radar detection method | |
| WO2020142939A1 (en) | Echo signal processing method and device and storage medium | |
| CN110441786A (en) | TOF measurement method and apparatus | |
| CN203870253U (en) | Laser radar monitoring system for early-period fire disaster alarm | |
| CN108562910A (en) | A kind of laser radar of the anti-stop signal saturation distortion of heavy haze weather | |
| CN108828542B (en) | Method for dynamically calibrating noise period of airborne weather radar | |
| WO2021179583A1 (en) | Detection method and detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 230088 Building No. 4, 11, Innovation Industrial Park, Hefei High-tech Zone, Anhui Province Patentee after: Anhui Kechuang Optical Technology Co. Ltd. Address before: 230088 University Science Park C509, 602 Huangshan Road, Shushan High-tech Zone, Hefei City, Anhui Province Patentee before: Anhui Kechuang Optical Technology Co. Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230000 building D3, phase I, innovation industrial park, No. 800, Wangjiang West Road, high tech Zone, Hefei, China (Anhui) pilot Free Trade Zone, Hefei, Anhui Patentee after: Anhui Kechuang Zhongguang Technology Co.,Ltd. Address before: 230088 11th floor, building C4, innovation industrial park, high tech Zone, Hefei City, Anhui Province Patentee before: ANHUI TECHNOVO LIDAR TECHNOLOGY CO.,LTD. |