CN108594266A - Laser radar and laser radar wind measuring system - Google Patents
Laser radar and laser radar wind measuring system Download PDFInfo
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- CN108594266A CN108594266A CN201810873695.2A CN201810873695A CN108594266A CN 108594266 A CN108594266 A CN 108594266A CN 201810873695 A CN201810873695 A CN 201810873695A CN 108594266 A CN108594266 A CN 108594266A
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- 230000003287 optical effect Effects 0.000 claims abstract description 147
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000005427 atmospheric aerosol Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
-
- 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
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
A kind of laser radar of the embodiment of the present application offer and laser radar wind measuring system.By being arranged power control board and laser light source on bottom plate, photoelectric converter setting is connect with the interface that is correspondingly connected on mounting plate respectively on top plate, and by laser light source, optical branching device, laser amplifier, optical circulator, Laser emission reception device, optical attenuator and photo-coupler.And the detection to detection target is realized by laser light source, optical branching device, laser amplifier, optical circulator, Laser emission reception device, optical attenuator, photo-coupler, photoelectric converter and data acquisition processing device.The application is compact-sized light, is easy to transport installation, maintenance cost is low, can reduce detection noise, while increasing the washability of laser light source, effectively reduces cost.
Description
Technical field
This application involves radar detection fields, in particular to a kind of laser radar and laser radar wind measuring system.
Background technology
Current LDV technique detection noise is larger and higher to the power requirement of laser light source, complicated, into
And increase cost.
Apply for content
In order to overcome above-mentioned deficiency in the prior art, the application's is designed to provide a kind of laser radar and laser thunder
It is compact-sized light up to wind measuring system, it is easy to transport installation, maintenance cost is low, can reduce detection noise, while increasing laser
The washability of light source, effectively reduces cost.
To achieve the goals above, the technical solution that the embodiment of the present application uses is as follows：
In a first aspect, the embodiment of the present application provides a kind of laser radar, the laser radar includes that cover body and setting exist
Laser radar structure in the cover body, the cover body are covered on the laser radar structure.
The laser radar structure includes that bottom plate, mounting structure, power control board, laser light source, optical branching device, laser are put
Big device, optical circulator, Laser emission reception device, optical attenuator, photo-coupler, photoelectric converter and data acquisition process dress
It sets.
The mounting structure includes the first side plate, the second side plate, mounting plate and top plate, first side plate and described the
Two side plates are oppositely arranged on the bottom plate, and the top plate is fixedly connected with first side plate and second side plate respectively,
The mounting plate is arranged on the top plate, and includes multiple connecting interfaces.
The power control board and the laser light source are arranged on the bottom plate, and the laser light source, swashs at optical branching device
Image intensifer, optical circulator, Laser emission reception device, optical attenuator and photo-coupler respectively with pair on the mounting plate
Connecting interface is answered to connect, the photoelectric converter is arranged on the top plate.
The laser light source is electrically connected with the power control board, for generating continuous laser signal, the optical branching
It is first laser signal and second laser signal that device, which is connect with the laser light source for the continuous laser signal branch that will generate,
The laser amplifier is electrically connected with the optical branching device, for the first laser signal to be carried out laser amplifier to obtain
First laser signal after amplifying power, the optical circulator are connect with the laser amplifier, are used for the first laser
Signal is exported along the first predetermined direction, and the Laser emission reception device is connect with the optical circulator, is used for described first
Laser signal along different directions to detection objective emission so that the atmospheric aerosol particle around the detection target is to described the
One laser signal generates echo optical signal, and receives the echo optical signal, and the optical circulator is additionally operable to the echo light
Signal is exported along the second predetermined direction.
The optical attenuator is electrically connected with the optical branching device, is used for the optical power adjustment of the second laser signal
For with the matched luminous power of the luminous power of the echo optical signal, the photo-coupler respectively with the optical attenuator and the light
Circulator connects, and the second laser signal after adjustment luminous power and the optical circulator for exporting the optical attenuator are defeated
The echo optical signal gone out is optically coupled to obtain mixed frequency signal, and the photoelectric converter is connect with the photo-coupler, and being used for will
The mixed frequency signal is converted to electric signal, and the data acquisition processing device is electrically acquired for acquiring with the photoelectric converter
Handle the electric signal.
Optionally, the data acquisition processing device includes：
Data acquisition board on first side plate is set.And
The processing unit for being arranged on the bottom plate and being electrically connected with the data acquisition board.
Optionally, the laser radar further includes：
It is connected between the laser light source and the optical branching device, for stopping that it is described sharp that the echo optical signal returns
The optoisolator of radiant.
Optionally, the Laser emission reception device include switching photoswitch, connect with the switching photoswitch it is each
The optical antenna of the direction of the launch and the window mirror being correspondingly arranged with the optical antenna, the switching photoswitch is for controlling institute
The direction of the launch for stating first laser signal makes the first laser signal via the optical antenna of corresponding direction and via the window
Mouth mirror emits to detection target.
Optionally, the mounting plate includes two, respectively the first mounting plate and the second mounting plate.
First mounting plate and second mounting plate are oppositely arranged on the top plate, the first mounting plate direction
The side of second mounting plate is disposed with optoisolator entrance, laser amplifier entrance, optical attenuator entrance, optical attenuation
Device exports, and side of first mounting plate far from second mounting plate is disposed with beam splitter entrance, beam splitter
First outlet, beam splitter second outlet and photo-coupler first entrance.
The side of second mounting plate towards first mounting plate is correspondingly arranged on optoisolator entrance, optical circulator
Entrance, optical circulator outlet and echo light exit, side of second mounting plate far from first mounting plate, which corresponds to, to be set
It is equipped with laser light source light-emitting window, laser amplifier outlet, switching photoswitch entrance and photo-coupler second entrance.
The laser light source is connect with the laser light source light-emitting window, and the optoisolator enters with the optoisolator respectively
Mouthful and the optoisolator outlet connection, the beam splitter respectively with the beam splitter, the beam splitter first outlet
And beam splitter second outlet connection, the laser amplifier respectively with the laser amplifier entrance and the laser
Amplifier outlet connects, and the optical circulator is connected with the optical circulator entrance and optical circulator outlet respectively, described
Photoswitch is connect with the photoswitch entrance, the photo-coupler and the photo-coupler first entrance and the photo-coupler the
Two entrances connect, and the optical attenuator is connected with the optical attenuator entrance and optical attenuator outlet.
Optionally, the window mirror is infrared light transmission glass, and infrared anti-reflection film is coated on the infrared light transmission glass and is prevented
Moisture film.
Optionally, it is additionally provided with lightning protection component on second side plate.
Optionally, the top plate is additionally provided with temperature control device and heating device, the temperature control close to the side of the bottom plate
Device is electrically connected with the heating device, and the heating temperature for adjusting the heating device, the heating device is according to institute
Heating temperature is stated to heat the top plate.
Optionally, the laser radar further includes power supply and communication device, and power supply is additionally provided on the bottom plate and is connect
Mouth and communication interface, the power supply are connect with the electric power connection interface, and the communication device is connect with the communication interface.
Second aspect, the embodiment of the present application also provide a kind of laser radar wind measuring system, the laser radar wind measuring system
The above-mentioned laser radar being connect including server and with the server communication.
In terms of existing technologies, the application has the advantages that：
A kind of laser radar of the embodiment of the present application offer and laser radar wind measuring system.By by power control board and laser
Light source is arranged on bottom plate, and photoelectric converter is arranged on top plate, and by laser light source, optical branching device, laser amplifier, the ring of light
Shape device, Laser emission reception device, optical attenuator and photo-coupler are connect with the interface that is correspondingly connected on mounting plate respectively.And
By laser light source, optical branching device, laser amplifier, optical circulator, Laser emission reception device, optical attenuator, photo-coupler, light
Electric transducer and data acquisition processing device realize the detection to detecting target.The application is compact-sized light, is easy to transport
Installation, maintenance cost is low, can reduce detection noise, while increasing the washability of laser light source, effectively reduces cost.
Description of the drawings
It, below will be to needed in the embodiment attached in order to illustrate more clearly of the technical solution of the embodiment of the present application
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of laser radar provided by the embodiments of the present application；
Fig. 2 is one of the structure diagram of laser radar provided by the embodiments of the present application；
Fig. 3 is the two of the structure diagram of laser radar provided by the embodiments of the present application；
Fig. 4 is the structure diagram of Laser emission reception device shown in Fig. 3；
Fig. 5 is the structural schematic diagram of Laser emission reception device shown in Fig. 3；
Fig. 6 is one of the structural schematic diagram of laser radar structure provided by the embodiments of the present application；
Fig. 7 is the enlarged diagram of the parts I shown in Fig. 6；
Fig. 8 is the structural schematic diagram of bottom plate provided by the embodiments of the present application；
Fig. 9 is the second structural representation of laser radar structure provided by the embodiments of the present application.
Icon：10- laser radars；100- cover bodies；200- laser radar structures；210- bottom plates；211- power control boards；
212- laser light sources；213- laser amplifiers；214- electric power connection interfaces；215- communication interfaces；216- reinforcing ribs；217- is supported
Fixed seat；The first side plates of 220-；The second side plates of 230-；240- mounting plates；The first mounting plates of 242-；2421- optoisolator entrances；
2422- laser amplifier entrances；2423- optical attenuator entrances；2424- optical attenuators export；2425- beam splitter entrances；
2426- beam splitter first outlets；2427- beam splitter second outlets；2428- photo-coupler first entrances；244- second pacifies
Loading board；2441- optoisolator entrances；2442- optical circulator entrances；2443- optical circulators export；2444- echo light exits；
2445- laser light source light-emitting windows；2446- laser amplifiers export；2447- switches photoswitch entrance；2448- photo-couplers second
Entrance；250- top plates；251- optoisolators；252- optical branching devices；253- optical circulators；254- optical attenuators；255- optical couplings
Device；256- photoelectric converters；260- Laser emission reception devices；262- switches photoswitch；264- optical antennas；265- antennas are solid
Determine component；266- window mirrors；270- data acquisition processing devices；272- data acquisition boards；274- processing units；280- lightning protection devices
Part；291- temperature control devices；292- heating devices.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiments herein to providing in the accompanying drawings be not intended to limit it is claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
All other embodiment that technical staff is obtained without creative efforts belongs to the model of the application protection
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present application, it should be noted that the term of the orientation or positional relationship of some instructions is based on attached
Orientation or positional relationship shown in figure or this application product using when the orientation or positional relationship usually put, be only for
It is described convenient for description the application and simplifying, specific side must be had by not indicating or implying the indicated device or element
Position, with specific azimuth configuration and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second "
It is described etc. being only used for distinguishing, is not understood to indicate or imply relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the application with concrete condition
In concrete meaning.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the application.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Referring to Fig. 1, for the structural schematic diagram of laser radar 10 provided by the embodiments of the present application.It is described in the present embodiment
Laser radar 10 includes cover body 100 and the laser radar structure 200 being arranged in the cover body 100, and the lid of the cover body 100 closes
In the laser radar structure 200.
Fig. 1 and Fig. 2 are please referred to, the laser radar structure 200 may include bottom plate 210, mounting structure, power supply control
Plate 211, laser light source 212, optical branching device 252, laser amplifier 213, optical circulator 253, Laser emission reception device 260,
Optical attenuator 254, photo-coupler 255, photoelectric converter 256 and data acquisition processing device 270.
Wherein, the mounting structure refering to fig. 1, including the first side plate 220, the second side plate 230, mounting plate 240 and top
Plate 250, first side plate 220 and second side plate 230 are oppositely arranged on the bottom plate 210, and the top plate 250 is distinguished
It being fixedly connected with first side plate 220 and second side plate 230, the mounting plate 240 is arranged on the top plate 250,
And include multiple connecting interfaces.
The power control board 211 and the laser light source 212 are arranged on the bottom plate 210, the laser light source
212, optical branching device 252, laser amplifier 213, optical circulator 253, Laser emission reception device 260, optical attenuator 254 and
Photo-coupler 255 is connect with the interface that is correspondingly connected on the mounting plate 240 respectively, and the photoelectric converter 256 is arranged in institute
It states on top plate 250.
Referring to Fig. 2, the laser light source 212 is electrically connected with the power control board 211, for generating continuous laser
Signal.The optical branching device 252 is connect with the laser light source 212 for swashing the continuous laser signal branch of generation for first
Optical signal and second laser signal.The laser amplifier 213 and the optical branching device 252 are electrically connected, for by described the
One laser signal carries out laser amplifier to obtain the first laser signal after amplifying power.The optical circulator 253 swashs with described
Image intensifer 213 connects, for exporting the first laser signal along the first predetermined direction.The Laser emission reception device
260 connect with the optical circulator 253, are used for the first laser signal along different directions to detection objective emission, so that
Atmospheric aerosol particle around the detection target generates echo optical signal to the first laser signal, and receives described return
Wave optical signal.The optical circulator 253 is additionally operable to export the echo optical signal along the second predetermined direction.
The optical attenuator 254 is electrically connected with the optical branching device 252, is used for the light work(of the second laser signal
Rate is adjusted to and the matched luminous power of the luminous power of the echo optical signal.The photo-coupler 255 respectively with the optical attenuation
Device 254 and the optical circulator 253 connect, the second laser after adjustment luminous power for exporting the optical attenuator 254
The echo optical signal that signal and the optical circulator 253 export is optically coupled to obtain mixed frequency signal.The photoelectric converter 256
It is connect with the photo-coupler 255, for the mixed frequency signal to be converted to electric signal, the data acquisition processing device 270
Electrically acquisition is used for electric signal described in acquisition process with the photoelectric converter 256.
It is worth noting that the detection target can be wind field, airport, amblent air temperature etc., it is not specifically limited herein.
Based on above-mentioned design, laser radar 10 provided in this embodiment is compact-sized light, be easy to transport installation, safeguard at
This is low, and the luminous power by increasing the echo optical signal that optical attenuator 254 adjusts the luminous power of local oscillator light and detection returns matches,
Detection noise can be reduced, while by increasing image intensifer and optical attenuator 254, ensureing the stability of laser, increasing and swash
The washability of radiant 212, effectively reduces cost.
Optionally, referring to Fig. 3, the laser radar 10 can also include optoisolator 251, the optoisolator 251
It is connected between the laser light source 212 and the optical branching device 252, for stopping that the echo optical signal returns to the laser
Light source 212.Ensure that light path prolongs a direction transmission by the isolation of optoisolator 251 as a result, reduces echo optical signal and return
The laser light source 212 is returned, ensures the stability of the laser light source 212, reduces system noise.
Optionally, please refer to Fig. 4 and Fig. 5, the Laser emission reception device 260 may include switching photoswitch 262,
It the optical antenna 264 of each direction of the launch connected with the switching photoswitch 262 and corresponding with the optical antenna 264 sets
The window mirror 266 set, the switching photoswitch 262 are used to control the direction of the launch of the first laser signal, make described first
Laser signal via corresponding direction optical antenna 264 and via the window mirror 266 emit to detection target.
Refering to Fig. 5, in the present embodiment, the Laser emission reception device 260 may also include for fixing each launch party
To optical antenna 264 antenna fixation kit 265, each optical antenna 264 is both secured to the antenna fixation kit
On 265, wherein be provided with a through-hole on the antenna fixation kit 265, the window mirror 266 is fixed in the through-hole so that
The direction of the launch of each optical antenna 264 is directed at the window mirror 266.
Wherein, the switching photoswitch 262 can be used for completing light path switching, in order to ensure switch speed, the switching light
Switch 262 can use switch at high speed photoswitch 262, so that switch speed is reached within 1ms.
Optionally, focus lamp or scanning mirror may be used in the optical antenna 264, to keep investigative range wider, institute
Stating the quantity of optical antenna 264 can arrange in pairs or groups according to the requirement of actual detection point, be not specifically limited herein.
Optionally, the window mirror 266 can be infrared light transmission glass, and infrared anti-reflection is coated on the infrared light transmission glass
Film and waterproof membrane can increase the transmitance of infrared light by the infrared anti-reflection film, consequently facilitating optic path, passes through simultaneously
The waterproof membrane can prevent dust to be adhered on window mirror 266, influence optic path.
Optionally, in conjunction with refering to Fig. 6, the data acquisition processing device 270 may include that data acquisition board 272 and processing fill
274 are set, the data acquisition board 272 is arranged on first side plate 220, and the processing unit 274 is arranged in the bottom plate
It is electrically connected on 210 and with the data acquisition board 272.In detail, the data acquisition board 272 turns for acquiring the photoelectricity
256 transformed electric signal of parallel operation, and signal processing is carried out to the electric signal and obtains cumulative spectrum signal, and will be described cumulative
Spectrum signal is sent to the processing unit 274.The processing unit 274 is calculated described based on the cumulative spectrum signal
Detect the dimensional wind distributed intelligence of target.
Optionally, FPGA+ industrial personal computers or FPGA+ microcontrollers in the prior art may be used in the processing unit 274
Or the combination of FPGA+DSP, it is not specifically limited herein.
Optionally, lightning protection component 280,280 normal work of the lightning protection component are also provided on second side plate 230
When making, switch element is to disconnect, and when lightning surge comes, surge current is released to the earth by switching elements conductive, from
And laser radar 10 is protected to be damaged from surge impact.
Still refering to Fig. 6, in one embodiment, the mounting plate 240 may include two, respectively the first mounting plate
242 and second mounting plate 244, first mounting plate 242 and second mounting plate 244 are oppositely arranged on the top plate 250
On.
In conjunction with shown in Fig. 7, the side of first mounting plate 242 towards second mounting plate 244 is disposed with light
Isolator entrance 2421, laser amplifier entrance 2422, optical attenuator entrance 2423, optical attenuator outlet 2424, described first
Side of the mounting plate 242 far from second mounting plate 244 is disposed with beam splitter entrance 2425, beam splitter first and goes out
Mouth 2426, beam splitter second outlet 2427 and photo-coupler first entrance 2428.Second mounting plate 244 is towards described
The side of first mounting plate 242 is correspondingly arranged on optoisolator entrance 2441, optical circulator entrance 2442, optical circulator outlet
2443 and echo light exit 2444, side of second mounting plate 244 far from first mounting plate 242 be correspondingly arranged on
Laser light source light-emitting window 2445, laser amplifier outlet 2446, switching photoswitch entrance 2447 and photo-coupler second entrance
2448。
In the present embodiment, the laser light source 212 is connect with the laser light source light-emitting window 2445, the optoisolator point
Not with the optoisolator entrance and the optoisolator outlet connect, the beam splitter respectively with the beam splitter, institute
It states beam splitter first outlet 2426 and the beam splitter second outlet 2427 connection, the laser amplifier 213 is distinguished
2446 connect with the laser amplifier entrance 2422 and laser amplifier outlet, the optical circulator 253 respectively with institute
2443 connection of optical circulator entrance 2442 and optical circulator outlet is stated, the photoswitch is connect with the photoswitch entrance,
The photo-coupler 255 is connect with the photo-coupler first entrance 2428 and the photo-coupler second entrance 2448, described
Optical attenuator 254 is connect with the optical attenuator entrance 2423 and optical attenuator outlet 2424.
Based on above-mentioned design, the present embodiment passes through each on first mounting plate 242 and second mounting plate 244
The connection between each optical fibre device can be realized in interface so that overall structure is compacter light, is easy to transport installation, and tie up
It protects at low cost.
Optionally, referring to Fig. 8, the laser radar 10 can also include power supply and communication device (not shown),
Electric power connection interface 214 and communication interface 215 are also provided on the bottom plate 210, the power supply is connect with the power supply
Interface 214 connects, and the communication device is connect with the communication interface.
Still refering to Fig. 8, optionally, reinforcing rib 216 and support fixed seat 217 are also provided on the bottom plate 210,
It can enhance the intensity of the bottom plate 210 by the way that the reinforcing rib 216 is arranged, it can be with by the way that the support fixed seat 217 is arranged
The laser radar 10 is fixed with external structure.
Optionally, referring to Fig. 9, the top plate 250 is also provided with temperature control device close to the side of the bottom plate 210
291 and heating device 292, the temperature control device 291 is electrically connected with the heating device 292, is filled for adjusting the heating
292 heating temperature is set, the heating device 292 heats the top plate 250 according to the heating temperature, as a result, may be used
So that the temperature of the laser radar 10 meets operating temperature requirements.
Further, the embodiment of the present application also provides a kind of laser radar wind measuring system, the laser radar wind measuring system
The above-mentioned laser radar 10 being connect including server and with the server communication.
In conclusion laser radar provided by the embodiments of the present application and laser radar wind measuring system.By the way that power supply is controlled
Plate and laser light source are arranged on bottom plate, and photoelectric converter setting is put on top plate, and by laser light source, optical branching device, laser
Big device, optical circulator, Laser emission reception device, optical attenuator and photo-coupler connect with being correspondingly connected on mounting plate respectively
Mouth connection.And by laser light source, optical branching device, laser amplifier, optical circulator, Laser emission reception device, optical attenuator, light
Coupler, photoelectric converter and data acquisition processing device realize the detection to detecting target.The application is compact-sized light,
Be easy to transport installation, maintenance cost is low, can reduce detection noise, while increasing the washability of laser light source, effectively reduce at
This.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and scope of the present application is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included in the application.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of laser radar, which is characterized in that the laser radar includes cover body and the laser that is arranged in the cover body
Radar arrangement, the cover body are covered on the laser radar structure；
The laser radar structure includes bottom plate, mounting structure, power control board, laser light source, optical branching device, laser amplifier
Device, optical circulator, Laser emission reception device, optical attenuator, photo-coupler, photoelectric converter and data acquisition process dress
It sets；
The mounting structure includes the first side plate, the second side plate, mounting plate and top plate, first side plate and the second side
Plate is oppositely arranged on the bottom plate, and the top plate is fixedly connected with first side plate and second side plate respectively, described
Mounting plate is arranged on the top plate, and includes multiple connecting interfaces；
The power control board and the laser light source are arranged on the bottom plate, and the laser light source, optical branching device, laser are put
Big device, optical circulator, Laser emission reception device, optical attenuator and photo-coupler are corresponding on the mounting plate respectively to be connected
Connection interface connects, and the photoelectric converter is arranged on the top plate；
The laser light source and the power control board are electrically connected, for generating continuous laser signal, the optical branching device with
Continuous laser signal branch of the laser light source connection for that will generate is first laser signal and second laser signal, described
Laser amplifier is electrically connected with the optical branching device, for the first laser signal to be carried out laser amplifier to be amplified
First laser signal after power, the optical circulator are connect with the laser amplifier, are used for the first laser signal
It is exported along the first predetermined direction, the Laser emission reception device is connect with the optical circulator, is used for the first laser
Signal along different directions to detection objective emission so that it is described detection target around atmospheric aerosol particle to described first swash
Optical signal generates echo optical signal, and receives the echo optical signal, and the optical circulator is additionally operable to the echo optical signal
It is exported along the second predetermined direction；
The optical attenuator and the optical branching device are electrically connected, for by the optical power adjustment of the second laser signal be with
The matched luminous power of luminous power of the echo optical signal, the photo-coupler respectively with the optical attenuator and the ring of light shape
Device connects, what the second laser signal after adjustment luminous power and the optical circulator for exporting the optical attenuator exported
Echo optical signal is optically coupled to obtain mixed frequency signal, and the photoelectric converter is connect with the photo-coupler, and being used for will be described
Mixed frequency signal is converted to electric signal, and electrically acquisition is used for acquisition process to the data acquisition processing device with the photoelectric converter
The electric signal.
2. laser radar according to claim 1, which is characterized in that the data acquisition processing device includes：
Data acquisition board on first side plate is set；And
The processing unit for being arranged on the bottom plate and being electrically connected with the data acquisition board.
3. laser radar according to claim 1, which is characterized in that the laser radar further includes：
It is connected between the laser light source and the optical branching device, for stopping that the echo optical signal returns to the laser light
The optoisolator in source.
4. laser radar according to claim 3, which is characterized in that the Laser emission reception device includes that switching light is opened
The optical antenna for each direction of the launch close, being connect with the switching photoswitch and the window being correspondingly arranged with the optical antenna
Mouth mirror, the switching photoswitch are used to control the direction of the launch of the first laser signal, make the first laser signal via
The optical antenna of corresponding direction simultaneously emits via the window mirror to detection target.
5. laser radar according to claim 4, which is characterized in that the mounting plate includes two, the respectively first peace
Loading board and the second mounting plate；
First mounting plate and second mounting plate are oppositely arranged on the top plate, and first mounting plate is described in
The side of second mounting plate is disposed with optoisolator entrance, laser amplifier entrance, optical attenuator entrance, optical attenuator and goes out
Mouthful, side of first mounting plate far from second mounting plate is disposed with beam splitter entrance, beam splitter first
Outlet, beam splitter second outlet and photo-coupler first entrance；
The side of second mounting plate towards first mounting plate is correspondingly arranged on optoisolator entrance, optical circulator enters
Mouth, optical circulator outlet and echo light exit, side of second mounting plate far from first mounting plate are correspondingly arranged
There are laser light source light-emitting window, laser amplifier outlet, switching photoswitch entrance and photo-coupler second entrance；
The laser light source is connect with the laser light source light-emitting window, the optoisolator respectively with the optoisolator entrance and
Optoisolator outlet connection, the beam splitter respectively with the beam splitter, the beam splitter first outlet and
Beam splitter second outlet connection, the laser amplifier respectively with the laser amplifier entrance and the laser amplifier
Device outlet connection, the optical circulator are connected with the optical circulator entrance and optical circulator outlet respectively, and the light is opened
Pass is connect with the photoswitch entrance, and the photo-coupler enters with the photo-coupler first entrance and the photo-coupler second
Mouth connection, the optical attenuator are connected with the optical attenuator entrance and optical attenuator outlet.
6. laser radar according to claim 4, which is characterized in that the window mirror is infrared light transmission glass, described red
It is coated with infrared anti-reflection film and waterproof membrane on outer transparent glass.
7. laser radar according to claim 1, which is characterized in that be additionally provided with lightning protection component on second side plate.
8. laser radar according to claim 1, which is characterized in that the top plate is also set up close to the side of the bottom plate
There are temperature control device and heating device, the temperature control device is electrically connected with the heating device, for adjusting the heating device
Heating temperature, the heating device heats the top plate according to the heating temperature.
9. laser radar according to claim 1, which is characterized in that the laser radar further includes that power supply and communication fill
It sets, electric power connection interface and communication interface is additionally provided on the bottom plate, the power supply is connect with the electric power connection interface, institute
Communication device is stated to connect with the communication interface.
10. a kind of laser radar wind measuring system, which is characterized in that the laser radar wind measuring system include server and with institute
State the laser radar described in any one of claim 1-9 of server communication connection.
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| CN201810873695.2A CN108594266B (en) | 2018-08-02 | 2018-08-02 | Laser radar and laser radar wind measuring system |
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| CN201810873695.2A CN108594266B (en) | 2018-08-02 | 2018-08-02 | Laser radar and laser radar wind measuring system |
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| CN108594266B (en) | 2024-01-19 |
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