CN113504533A - Laser radar data validity detection device and method - Google Patents
Laser radar data validity detection device and method Download PDFInfo
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- CN113504533A CN113504533A CN202110788260.XA CN202110788260A CN113504533A CN 113504533 A CN113504533 A CN 113504533A CN 202110788260 A CN202110788260 A CN 202110788260A CN 113504533 A CN113504533 A CN 113504533A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
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- 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
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- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Electromagnetism (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a laser radar data validity detection device and a method, relating to the technical field of radar, wherein the detection device comprises a weather phenomenon recording system, an image processing module, a laser radar data acquisition module and an original data processing module; the weather phenomenon recording system is used for automatically recording different weather phenomena on line and realizing rapid data transmission; the image processing module is used for recording the image information collected in the weather phenomenon recording system and carrying out data processing; the laser radar data acquisition module is used for receiving the weather data processed by the image processing module; and the original data processing module is used for carrying out time identification on the original data acquired in the laser radar data acquisition module. The invention can firstly carry out intelligent detection and record on the data validity of the laser radar system applied to the fields of ecological environment monitoring, meteorological observation, scientific research colleges and universities and the like.
Description
Technical Field
The invention relates to the technical field of radars, in particular to a laser radar data validity detection device and method.
Background
Lidar is an active modern optical remote sensing device, and is an extension of traditional radio or microwave radars to the optical frequency band. The atmospheric detection laser radar takes laser as a transmitting light source, and detects various atmospheric factors by quantitatively analyzing laser atmospheric echo signals according to physical processes of scattering, absorption and the like of the atmosphere on the laser. Compared with the detection source of the traditional radar, the laser has the characteristics of high brightness, high collimation, short pulse and the like, so that the laser radar has high space and time resolution capability and high detection sensitivity and is very suitable for atmosphere detection and research; the laser radar is the integration of high and new technologies such as laser technology, optics, machinery, electronics, computer control and the like.
The prior art laser radar types can be classified into the following: 1) atmospheric molecular detection lidar. When atmospheric molecules are detected, a differential absorption technology, a raman technology and a fluorescence technology are commonly adopted, wherein a differential absorption laser radar is common, the working principle of the differential absorption laser radar is to extract the concentration content of a target gas by utilizing the selective absorption difference of the target gas at the detection wavelength, and in the inversion process, the influence of other factors of the target wavelength is regarded as no difference. The differential absorption laser radar can also detect ozone, nitrogen oxide, sulfur dioxide and the like in the atmosphere. 2) Aerosol and cloud detection lidar. The Mie scattering laser radar is used for detecting atmospheric aerosol and cloud, generally has a polarization function, and is mainly used for detecting the depolarization ratio vertical profile of particles in the atmosphere. By utilizing the depolarization ratio, the shape characteristics of the particles can be determined, and then the particles are classified and the sources of the particles are judged. For example, the secondary particles generated locally are mostly regular spherical particles, and the depolarization ratio is small; most of the sand and dust particles input from the outside are irregular in shape, and the depolarization ratio is large. 3) Doppler lidar. The Doppler laser radar is generally used for measuring atmospheric motion wind field, and the technology mainly utilizes the Doppler frequency shift of target detection wavelength when aerosol particles in the atmosphere move to quantitatively analyze three-dimensional wind speed and wind direction.
At present, no automatic device for judging data validity is adopted in the atmosphere-related laser radar systems applied to the fields of ecological environment monitoring, meteorological observation, scientific research colleges and universities and the like, manual operation is mostly relied on, on one hand, the workload is large, on the other hand, the requirement on professional quality of operators is high, and meanwhile, the data volume of mutual reference is large.
Disclosure of Invention
The invention aims to provide a laser radar data validity detection device and method so as to achieve the purpose of automatically, online and intelligently judging the validity of weather data.
In order to achieve the purpose, the invention provides the following technical scheme:
a laser radar data validity detection device comprises a weather phenomenon recording system, an image processing module, a laser radar data acquisition module and an original data processing module; the weather phenomenon recording system is used for automatically recording different weather phenomena on line and realizing rapid data transmission; the image processing module is used for recording the image information collected in the weather phenomenon recording system and carrying out data processing; the laser radar data acquisition module is used for receiving the weather data processed by the image processing module; and the original data processing module is used for carrying out time identification on the original data acquired in the laser radar data acquisition module.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the weather phenomenon recording system comprises a base and a CCD detector, wherein the base is used for supporting and protecting the whole weather phenomenon recording system; the CCD detector is arranged on the base and is used for imaging the external weather conditions to form image information.
In one alternative: the inside of the base is also provided with a fan and a drying system, and the fan is used for circulating the ambient air of the weather phenomenon recording system to dissipate heat; the drying system is used for adsorbing water vapor.
In one alternative: the protective cover is made of quartz glass and is of a curved surface structure.
A laser radar data validity detection method adopts the laser radar data validity detection device; the method comprises the following steps:
step S1: the weather phenomenon recording system is used for automatically recording different weather phenomena on line, and rapid data transmission is realized;
step S2: image data processing is carried out on the image information collected in the weather phenomenon recording system through an image processing module;
step S3: a laser radar data acquisition module is adopted to receive the weather data processed by the image processing module;
step S4: and carrying out time identification on the original data acquired in the laser radar data acquisition module through the original data processing module.
Compared with the prior art, the invention has the following beneficial effects:
the invention can firstly carry out intelligent detection and record on the data validity of the laser radar system applied to the fields of ecological environment monitoring, meteorological observation, scientific research colleges and universities and the like. The device has good integration and can be widely applied to laser radar systems of different manufacturers and different models. The data protocol has strong compatibility and is used for secondary development of users and systems. By the device, the dependence on manpower in the application of the laser radar is greatly reduced, the data is more conveniently identified, and effective support is provided for further networking observation and business operation.
Drawings
Fig. 1 is a schematic view of the overall structure of the device in one embodiment of the present invention.
Notations for reference numerals: the weather phenomenon recording system comprises a weather phenomenon recording system 1, a base 11, a CCD detector 12, a lens 13, a protective cover 14, an image processing module 2, a laser radar data acquisition module 3 and an original data processing module 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1, a lidar data validity detection apparatus includes a weather phenomenon recording system 1, an image processing module 2, a lidar data acquisition module 3, and a raw data processing module 4; the weather phenomenon recording system 1 is used for automatically recording different weather phenomena on line and realizing rapid data transmission; the image processing module 2 is used for recording the image information collected in the weather phenomenon recording system 1 and performing data processing; the laser radar data acquisition module 3 is used for receiving the weather data processed by the image processing module 2; the original data processing module 4 is used for carrying out time identification on the original data collected in the laser radar data collection module 3;
in the embodiment, the weather phenomenon recording system 1 is used for recording the phenomena of different weathers and automatically recording the phenomena on line; the image processing module 2 can process data according to the image information of the weather phenomenon; obtaining more clear weather data; the laser radar data acquisition module 3 can collect weather data which is processed by data and mark time in real time through the original data processing module 4; therefore, the data effectiveness of the laser radar system applied in the fields of ecological environment monitoring, meteorological observation, scientific research colleges and universities and the like can be intelligently detected and recorded;
in one embodiment, as shown in fig. 1, the weather phenomenon recording system 1 comprises a base 11 and a CCD detector 12, wherein the base 11 is used for supporting and protecting the whole weather phenomenon recording system; the CCD detector 12 is arranged on the base 11 and is used for imaging the external weather conditions to form image information;
in one embodiment, as shown in fig. 1, a fan and a drying system are further disposed inside the base 11, and the fan is used for circulating ambient air of the weather phenomenon recording system 1 to dissipate heat; the drying system is used for adsorbing water vapor so as to avoid the influence of the humidity of the weather phenomenon recording system on the working state of the weather phenomenon recording system;
in one embodiment, as shown in fig. 1, the weather phenomenon recording system 1 further comprises a lens 13 and a protective cover 14, wherein the lens 13 is arranged on the CCD detector 12 and is used for clearly and magnifily imaging the external weather conditions on the CCD detector 12; the protective cover 14 is arranged outside the base 11 and used for protecting the devices inside the protective cover; the protective cover 14 can protect the internal structure and can also avoid rain and dust accumulation;
in one embodiment, as shown in FIG. 1, the shield 14 is made of quartz glass and has a curved configuration;
a laser radar data validity detection method adopts the laser radar data validity detection device; the method comprises the following steps:
step S1: the weather phenomenon recording system 1 is used for automatically recording different weather phenomena on line and realizing rapid data transmission;
step S2: image data processing is carried out on the image information collected in the weather phenomenon recording system 1 through an image processing module 2;
step S3: a laser radar data acquisition module 3 is adopted to receive the weather data processed by the image processing module 2;
step S4: and carrying out time identification on the original data collected in the laser radar data collection module 3 through the original data processing module 4.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (6)
1. A laser radar data validity detection device is characterized by comprising a weather phenomenon recording system, an image processing module, a laser radar data acquisition module and an original data processing module;
the weather phenomenon recording system is used for automatically recording different weather phenomena on line and realizing rapid data transmission;
the image processing module is used for recording the image information collected in the weather phenomenon recording system and carrying out data processing;
the laser radar data acquisition module is used for receiving the weather data processed by the image processing module;
and the original data processing module is used for carrying out time identification on the original data acquired in the laser radar data acquisition module.
2. The lidar data validity detection device of claim 1, wherein the weather phenomenon recording system comprises a base and a CCD detector;
the base is used for supporting and protecting the whole weather phenomenon recording system;
the CCD detector is arranged on the base and is used for imaging the external weather conditions to form image information.
3. The lidar data validity detection device of claim 2, wherein a fan and a drying system are further disposed inside the base, the fan being used for circulation of ambient air of the weather phenomenon recording system to dissipate heat; the drying system is used for adsorbing water vapor.
4. The lidar data validity detection apparatus of claim 2, wherein the weather phenomenon recording system further comprises a lens and a protective cover;
the lens is arranged on the CCD detector and is used for clearly magnifying and imaging the external weather condition on the CCD detector;
the protective cover is arranged outside the base and used for protecting the devices inside the protective cover.
5. The lidar data validity detection device of claim 1, wherein the shield is made of quartz glass and has a curved surface structure.
6. A lidar data validity detection method characterized by employing the lidar data validity detection apparatus of any one of claims;
the method comprises the following steps:
step S1: the weather phenomenon recording system is used for automatically recording different weather phenomena on line, and rapid data transmission is realized;
step S2: image data processing is carried out on the image information collected in the weather phenomenon recording system through an image processing module;
step S3: a laser radar data acquisition module is adopted to receive the weather data processed by the image processing module;
step S4: and carrying out time identification on the original data acquired in the laser radar data acquisition module through the original data processing module.
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| CN202110788260.XA CN113504533A (en) | 2021-07-13 | 2021-07-13 | Laser radar data validity detection device and method |
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| CN202110788260.XA CN113504533A (en) | 2021-07-13 | 2021-07-13 | Laser radar data validity detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117635413A (en) * | 2023-11-17 | 2024-03-01 | 山东科技大学 | Real-time transmission system and method for airborne laser radar data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117635413A (en) * | 2023-11-17 | 2024-03-01 | 山东科技大学 | Real-time transmission system and method for airborne laser radar data |
| CN117635413B (en) * | 2023-11-17 | 2024-05-07 | 山东科技大学 | Real-time transmission system and method for airborne laser radar data |
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