CN206772826U - A kind of multifunction high-precision atmosphere visibility meter - Google Patents
A kind of multifunction high-precision atmosphere visibility meter Download PDFInfo
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- CN206772826U CN206772826U CN201720543720.1U CN201720543720U CN206772826U CN 206772826 U CN206772826 U CN 206772826U CN 201720543720 U CN201720543720 U CN 201720543720U CN 206772826 U CN206772826 U CN 206772826U
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Abstract
The utility model discloses a kind of multifunction high-precision atmosphere visibility meter,Including shell,The inside of the shell is provided with power supply,Power-supply controller of electric,Telescope,Laser flip flop,Laser,Coupler,First condenser lens,Second condenser lens,Narrow band pass filter,Fpga core controls and data processing module,Photodetector and external environment condition detecting module,The front side surface of the shell is provided with laser flip flop button and LCDs,The power supply by power-supply controller of electric respectively with the laser flip flop,Laser,Photodetector,Fpga core controls and data processing module,External environment condition detecting module and LCDs electrical connection,Laser flip flop button and the fpga core control electrically connects with data processing module,The fpga core control electrically connects with data processing module and laser flip flop,The utility model small volume,It is in light weight,It is multi-functional,Low cost and measurement accuracy are high.
Description
Technical field
It the utility model is related to visibility meter technical field, and in particular to a kind of multifunction high-precision atmosphere visibility meter.
Background technology
With the development of the social economy, energy resource consumption increases, environmental pollution increasingly sharpens, in recent years, the gray haze in China
Weather takes place frequently, and shows the features such as outburst frequency is high, process development is fast, the duration is long, coverage is wide.Frequently gray haze day
Conductance causes visibility to reduce, significantly improve aircraft get lost, flight delay, the probability of happening of the event such as vehicle grazing, cause
Great economic loss and extremely severe social influence.Gray haze problem has turned into the calamity of current social public's most attention increasingly
Evil property weather phenomenon.The birth of visibility meter, greatly alleviate under haze weather present in people's trip and communications and transportation
It is difficult.The method for substituting Traditional Man to estimate by the way of apparatus measures visibility, it not only ensure that the standard of visibility monitoring
True property, instantaneity and the long-term effect of monitoring are also can ensure that, be the big important measure for ensureing safety.
With the development of photoelectron technology and the progress of mechanical technology, increasing high accuracy, wide-range visibility meter
It is devised.Such as the Model6000 transmittance meters of Belfort companies of the U.S., using forward scattering technology, main application
In places such as harbours；The FD12P visibility meters of VAISALA companies of Finland, forward scattering technology equally is used, is applied not only to traffic
Field, also the meteorology angles of science monitoring instrument as routine are widely used.The country is since the eighties of last century sixties
The research of visibility measurement instrument is carried out, 1991, Chinese Academy of Sciences's atmospheric physics institute successfully have developed a laser radar formula
Visibility meter.Then, Luoyang Mai Kai companies, Anhui optical precision optical machinery research institute, Jinzhou sunlight scientific ＆ technical corporation etc. all have in succession
Visibility detection instrument comes out.Visibility detecting devices on the market mostly uses transmission-type or forward scattering type now, and
Based on both detection mechanism, detecting location can be caused to fix, range is small, field adjustable is difficult and detecting error is larger etc. asks
Topic, limits use range and the popularization and application of visibility meter；And its volume is larger and installation process is complicated.Meanwhile visibility
Inverting more using Collis, Klett and Fernald these three basic inversion algorithms：The inverting premise of Collis Slope Methods
It is that air is uniformly distributed, and actual atmospheric condition is frequently not uniform, inversion result there will necessarily be larger deviation；
Klett methods and Fernald methods can be used for the inverting of real atmosphere extinction coefficient, but be required for determining extinction coefficient border first
Value, the selection of boundary value are related to the solving precision of final visibility.Therefore, small volume, in light weight, inexpensive and high-precision is developed
The atmosphere visibility meter of degree, to expanding its application prospect, realizing that the marketization is significant, and to land traffic, navigation, boat
Empty, meteorology etc. has important directive significance.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of multi-functional height for above-mentioned the deficiencies in the prior art
Precision atmosphere visibility meter, the utility model small volume, in light weight, multi-functional, inexpensive and measurement accuracy are high.
To realize above-mentioned technical purpose, the technical scheme that the utility model is taken is：
A kind of multifunction high-precision atmosphere visibility meter, including shell, the inside of the shell are provided with power supply, power supply
Device, telescope, laser flip flop, laser, coupler, the first condenser lens, the second condenser lens, narrow band pass filter, FPGA
Core controls is provided with peace with data processing module, photodetector and external environment condition detecting module, the right lateral surface of the shell
Hole is filled, the camera lens of the telescope is fixed in the mounting hole of shell, and the front side surface of the shell is pressed provided with laser flip flop
Key and LCDs, the power supply by power-supply controller of electric respectively with the laser flip flop, laser, photodetector,
Fpga core control electrically connects with data processing module, external environment condition detecting module and LCDs, the laser flip flop
Button and fpga core control are electrically connected with data processing module, and the fpga core control is touched with data processing module and laser
Device electrical connection is sent out, the laser flip flop and laser electrically connect and laser is used to produce laser beam and launch laser beam to coupling
Clutch, the focal point of the coupler are provided with the transmitting terminal of transceiver coaxial optical fiber beam, the transceiver coaxial optical fiber
The common port of beam is located at the focal point of telescope, and the receiving terminal of the transceiver coaxial optical fiber beam is located at the first condenser lens
Focal point, the narrow band pass filter are arranged between the first condenser lens and the second condenser lens, the second condenser lens peace
Between narrow band pass filter and photodetector, photodetector and the fpga core control is electrically connected with data processing module
Connect, the external environment condition detecting module and fpga core control electrically connects with data processing module, the fpga core control and
Data processing module and LCDs electrical connection.
As the further improved technical scheme of the utility model, the fpga core control includes with data processing module
A/D analog-to-digital conversion modules, FIFO memory, visibility inverting data handling system, LCDs control module, by key control
Module, memory and serial communication module, the A/D analog-to-digital conversion modules store with external environment condition detecting module and FIFO respectively
Device electrically connects, and the FIFO memory electrically connects with visibility inverting data handling system, the visibility inverting data processing
System electrically connects with memory and LCDs control module respectively, and the memory electrically connects with serial communication module, institute
State LCDs control module to electrically connect with LCDs, the laser flip flop button is by key control module with swashing
Light trigger electrically connects.
As the further improved technical scheme of the utility model, the external environment condition detecting module include gps antenna,
GPS module, temperature sensor, humidity sensor, baroceptor and obliquity sensor, the gps antenna are electrically connected with GPS module
Connect, the GPS module, temperature sensor, humidity sensor, baroceptor and obliquity sensor with A/D analog-to-digital conversions
Module electrically connects.
As the further improved technical scheme of the utility model, the telescope is looked in the distance using Schmidt-Cassegrain
Mirror, the power-supply controller of electric include power switch, and the power switch is located at the front side surface of the shell.
As the further improved technical scheme of the utility model, described Schmidt-Cassegrain telescope includes non-
Sphere Schmidt corrector, sphere secondary mirror, primary mirror sphere and collimation lens.Schmidt-Cassegrain telescope is looked in the distance all
Nearly burnt ability is best in mirror type.
As the further improved technical scheme of the utility model, the transceiver coaxial optical fiber beam includes launching fiber
And reception optical fiber, the launching fiber are made up of single silica fibre, the reception optical fiber is made up of some silica fibres, institute
Launching fiber and the reception optical fiber for stating the forward part of transceiver coaxial optical fiber beam separate, the transceiver coaxial optical fiber beam
Rear portion divides launching fiber to be located at center, and some root receiving fibers are evenly arranged in the surrounding of launching fiber, and the transceiver is same
The rear end part of axle fibre bundle is located at the focal point of telescope, the launching fiber of the forward part of the transceiver coaxial optical fiber beam
One end be located at the focal point of coupler, one end of the reception optical fiber of the forward part of the transceiver coaxial optical fiber beam is positioned at the
The focal point of one condenser lens.
The utility model compared with prior art, has the advantages that：The utility model utilizes all optical fibre structure, small
Type S-C telescopes and the processing of the FPGA data of high speed and control system, effectively increase the compactedness of visibility meter and steady
It is qualitative, and using the design of the coaxial transceiving integrated fibre bundle of optics, eliminate the influence of geometric overlap factor, make this practicality newly
Type overall volume reduces, and weight saving, structure become simple, and cost is low, easy for installation.The utility model is integrated with humidity, gas
The sensors such as pressure, temperature, GPS, the multifunction of measuring instrument is realized, and for the result of these sensors measurement, carried out
The judgement of atmospheric condition and position.The utility model carries out angle of inclination judgement by obliquity sensor, it is possible to achieve horizontal
Direction and oblique Cheng Fangxiang visibility measurement, more fast and stable inverting atmospheric visibility information exactly.
Brief description of the drawings
Fig. 1 is the structural representation of shell of the present utility model.
Fig. 2 is enclosure structural representation of the present utility model.
Fig. 3 is the structural representation of telescope of the present utility model.
Fig. 4 is fpga core of the present utility model control and the structural representation of data processing module.
Fig. 5 is operation principle schematic diagram of the present utility model.
Fig. 6 is the workflow diagram of visibility inverting data handling system of the present utility model.
Fig. 7 is visibility inverting data handling system of the present utility model using the measuring method of air slant visibility
Workflow diagram.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings to this reality
It is described in further detail with new.It should be appreciated that specific embodiment described herein is only to explain the utility model,
It is not used to limit the utility model.
Specific embodiment of the present utility model is further illustrated below according to Fig. 1 to Fig. 7：
Referring to Fig. 1 and Fig. 2, the utility model proposes and devise a kind of multifunction high-precision atmosphere visibility meter, including
Shell 1, the inside of the shell 1 are provided with power supply 6, power-supply controller of electric 7, telescope 19, laser flip flop 8, laser 9, coupling
Device 10, the first condenser lens 15, the second condenser lens 17, narrow band pass filter 16, fpga core control and data processing module 14,
Photodetector 18 and external environment condition detecting module 13, the right lateral surface of the shell 1 are provided with mounting hole 2, the telescope 19
Camera lens be fixed in the mounting hole 2 of shell 1, the front side surface of the shell 1 is provided with laser flip flop button 3 and liquid crystal display
Screen 4, the power supply 6 by power-supply controller of electric 7 respectively with the laser flip flop 8, laser 9, photodetector 18, FPGA core
Heart control is electrically connected with data processing module 14, external environment condition detecting module 13 and LCDs 4, and the laser flip flop is pressed
Key 3 and fpga core control electrically connect with data processing module 14, fpga core control and data processing module 14 and sharp
Light trigger 8 electrically connects, and the laser flip flop 8 and laser 9 electrically connect and laser 9 is used to produce laser beam and launch to swash
Light beam is provided with the transmitting terminal of transceiver coaxial optical fiber beam 11, the receipts to coupler 10, the focal point of the coupler 10
The common port for sending out coaxial optical fiber beam 11 integral is located at the focal point of telescope 19, the reception of the transceiver coaxial optical fiber beam 11
End is positioned at the focal point of the first condenser lens 15, and the narrow band pass filter 16 is arranged on the first condenser lens 15 and the second focusing is saturating
Between mirror 17, second condenser lens 17 is arranged between narrow band pass filter 16 and photodetector 18, the photodetection
Device 18 and fpga core control electrically connect with data processing module 14, external environment condition detecting module 13 and the fpga core control
Electrically connected with data processing module 14, the fpga core control electrically connects with data processing module 14 and LCDs 4.
In the present embodiment, referring to Fig. 4, the fpga core control includes A/D analog-to-digital conversion moulds with data processing module 14
Block, FIFO memory, visibility inverting data handling system, LCDs control module, key control module, memory and
Serial communication module, seven function sub-modules work orderly under the coordination of FPGA internal system time clock signals, so as to realize
One complete control and data handling system.The A/D analog-to-digital conversion modules respectively with external environment condition detecting module 13 and
FIFO memory electrically connects, and the FIFO memory electrically connects with visibility inverting data handling system, the visibility inverting
Data handling system electrically connects with memory and LCDs control module respectively, the memory and serial communication module electricity
Connection, the LCDs control module electrically connect with LCDs 4, and the laser flip flop button 3 is by by keying
Molding block electrically connects with laser flip flop 8.
In the present embodiment, the external environment condition detecting module 13 includes gps antenna 12, GPS module 24, temperature sensor
23rd, humidity sensor 22, baroceptor 21 and obliquity sensor 20, the gps antenna 12 electrically connect with GPS module 24, institute
State GPS module 24, temperature sensor 23, humidity sensor 22, baroceptor 21 and obliquity sensor 20 with A/D moduluses
Modular converter electrically connects.
In the present embodiment, the telescope 19 uses Schmidt-Cassegrain telescope, and the power-supply controller of electric 7 includes
Power switch 5, referring to Fig. 1, the power switch 5 is located at the front side surface of the shell 1.
In the present embodiment, referring to Fig. 3, described Schmidt-Cassegrain telescope 19 includes aspherical schmidt corrector
Plate 19-1, sphere secondary mirror 19-2, primary mirror sphere 19-3 and collimation lens 19-4.
In the present embodiment, referring to Fig. 2, the transceiver coaxial optical fiber beam includes launching fiber 26 and reception optical fiber 25,
The launching fiber 26 is made up of single silica fibre, and the reception optical fiber 25 is made up of some silica fibres, the transmitting-receiving
The launching fiber 26 and reception optical fiber 25 of the forward part of integral coaxial optical fiber beam separate, after the transceiver coaxial optical fiber beam
Part launching fiber 26 is located at center, and some root receiving fibers 25 are evenly arranged in the surrounding of launching fiber, the transceiver
The rear end part 27 of coaxial optical fiber beam is located at the focal point of telescope, the transmitting of the forward part of the transceiver coaxial optical fiber beam
One end of optical fiber 26 is located at the focal point of coupler, and the one of the reception optical fiber 25 of the forward part of the transceiver coaxial optical fiber beam
Focal point of the end positioned at the first condenser lens.
In the present embodiment, referring to Fig. 5, detection principle of the present utility model is as follows：Laser flip flop button 3 is pressed,
Laser flip flop button 3 sends a signal to laser flip flop 8 by key control module, and laser flip flop 8 sends trigger signal
To laser 9, laser 9 follows the frequency of trigger signal to launch laser beam, and laser beam is coupled to transceiver through coupler 10
Coaxial optical fiber beam 11 is simultaneously launched by telescope 19；By the scattering and absorption of atmospheric substance in transmitting procedure, produce backward
Scatter echo signal, telescope 19 receive backscattering echo signal and launch optical signal by transceiver coaxial optical fiber beam 11
To the first condenser lens 15, optical signal is focused on and removes bias light by narrow band pass filter 16 by the first condenser lens 15, and second
Optical signal after condenser lens 17 handles narrow band pass filter 16 focuses on the photosurface for inciding photodetector 18, photodetection
Device 18 converts optical signals to electric signal and sends A/D analog-to-digital conversion modules to, and humidity sensor 22 measures external environment condition in real time
Relative humidity information and send the signal of relative humidity information and measured in real time to A/D analog-to-digital conversion modules, obliquity sensor 20
The angle of inclination of atmosphere visibility meter simultaneously sends inclination angle signal to A/D analog-to-digital conversion modules, and A/D analog-to-digital conversion modules are to letter
Number carry out analog-to-digital conversion and data being stored in into FIFO memory, FIFO memory is output to visibility inverting number by data cached
According to processing system, visibility inverting data handling system judges atmospheric condition according to the size of the relative humidity of external environment condition；Energy
Degree of opinion inverting data handling system carries out data operation processing, visibility value is calculated, the data after processing pass through liquid all the way
Crystal display screen control module is sent in LCDs 4 so as to complete real-time display, and another way is stored in memory.
GPS module 24 detects current location in real time by gps antenna 12, and temperature sensor 23 detects the temperature of air in real time
Degree, baroceptor 21 detect the air pressure of air in real time；GPS module 24, temperature sensor 23 and baroceptor 21 are sent out respectively
The number of delivering letters arrives A/D analog-to-digital conversion modules, and A/D analog-to-digital conversion modules carry out analog-to-digital conversion to signal and respectively by position data, temperature
Degrees of data and barometric information are stored in FIFO memory, and FIFO memory is output to visibility inverting data processing by data cached
System, visibility inverting data handling system send position data, temperature data and barometric information and control mould to LCDs
Block, the display location data of LCDs 4, temperature data and barometric information, visibility inverting data handling system is by positional number
According in, temperature data and air pressure data Cun Chudao memories, the data in the memory can be sent into outer by serial communication module
Portion's computer carries out more fully complicated Data Analysis Services.The content that the LCDs 4 of the present embodiment is shown includes：Through
Latitude information, temperature, humidity, air pressure, gradient, atmospheric condition, the electricity of power supply 6 and visibility value.
A kind of visibility measurement method based on above-mentioned multifunction high-precision atmosphere visibility meter, specifically includes following step
Suddenly：
Step 1：Humidity sensor 22 measures the relative humidity information of external environment condition and sends relative humidity information in real time
Signal carries out analog-to-digital conversion to signal and is stored in relative humidity information to A/D analog-to-digital conversion modules, A/D analog-to-digital conversion modules
FIFO memory, FIFO memory are output to visibility inverting data handling system by data cached, at visibility inverting data
Reason system judges atmospheric condition according to the size of the relative humidity of external environment condition；Measured in the present embodiment by humidity sensor 22
The humidity condition of environment, if relative humidity is more than 90%, atmospheric condition is judged as mist；If relative humidity is more than less than 90%
80%, then atmospheric condition be judged as haze mix；If relative humidity is less than 80%, atmospheric condition is judged as haze.
Step 2：Referring to Fig. 6, obliquity sensor 20 measures the angle of inclination of atmosphere visibility meter and sends inclination angle in real time
Signal is spent to carry out signal to A/D analog-to-digital conversion modules, A/D analog-to-digital conversion modules analog-to-digital conversion and deposit angle of inclination data
To FIFO memory, FIFO memory is output to visibility inverting data handling system, visibility inverting data by data cached
Processing system judges the size at angle of inclination, if angle of inclination is less than 5 degree, visibility inverting data handling system uses air
The measuring method of horizontal visibility calculates atmospheric extinction coefficient, and otherwise, visibility inverting data handling system uses the oblique journey of air
The measuring method of visibility calculates atmospheric extinction coefficient；
Step 3：Visibility of air value is determined according to the atmospheric extinction coefficient that step 2 calculates；
Step 4：Visibility of air value and atmospheric condition are sent to liquid crystal display by visibility inverting data handling system
Shield control module, LCDs control module control LCDs 4, LCDs 4 show visibility of air value and
Visibility of air value and atmospheric condition are sent to memory, memory by atmospheric condition, visibility inverting data handling system
The visibility value and atmospheric condition of storage atmosphere.
In the present embodiment, the visibility inverting data handling system is calculated using the measuring method of atmospheric horizontal visibility
Atmospheric extinction coefficient specifically includes following steps：
(a) laser radar equation is used, obtains range calibration logarithmic function：
S (r)=ln [r2P(r)] (1)
Wherein P (r) is the power of the laser radar echo signal at distance r..
(b) extinction coefficient of air is calculated：
In the present embodiment, referring to Fig. 7, the visibility inverting data handling system uses the measurement of air slant visibility
Method obtains atmospheric extinction coefficient and specifically includes following steps：
(a) visibility inverting data handling system reads laser radar echo signal P (r), determines valid data starting point rs
With valid data terminal rm；
(b) using Collis Slope Methods processing rsTo rmBetween echo-signal, estimate the extinction coefficient in measuring route
σs, by the σ of estimationsIt is assigned to σm；
(c) by extinction coefficient σmInitial value substitute into formula：
Wherein S1、S2Respectively the delustring Back-scattering ratio of the delustring Back-scattering ratio of aerosol and atmospheric molecule, P (r) are
The power of echo-signal, σ at detection range raAnd σ (r)m(r) extinction coefficient of aerosol and atmospheric molecule, P (r are represented respectivelym)
For the echo power of boundary, σm(rm) be atmospheric molecule extinction efficient boundary values；
(d) light extinction mode of United States standard atmosphere molecular extinction pattern and particulate is combined, is calculated by formula (3)
Each point r extinction coefficient on outbound path, calculate effective measuring route rsTo rmBetween average extinction coefficient σavg；
Wherein the light extinction mode of United States standard atmosphere molecular extinction pattern and particulate is respectively by formula (4) and formula (5)
Represent：
σa(r)=βa(r)×50 (5)
(e) referring to Fig. 7, σ is passed throughavgWith σmDo difference and determine error, if error is more than or equal to the iteration error ∈ of setting,
By σavgIt is assigned to σmAnd iteration is re-started by formula (3), until the effective measuring route r calculatedsTo rmBetween it is flat
Equal extinction coefficient σavgWith σmBetween error be less than setting iteration error untill；If error is less than the iteration error ∈ of setting,
Then export σavgAverage extinction coefficient σ as air in measuring route.
In the present embodiment, the atmospheric extinction coefficient calculated according to step 2 determines that visibility of air value specifically includes
Following steps：
(a) mathematical modeling between extinction coefficient and visibility is built；
Wherein a, b, c are correction factor, and V is visibility value, and σ is extinction coefficient；
(b) the actual extinction coefficient of local air and visibility value are measured, formula (6) is brought into, obtains a, b and c；
(c) atmospheric extinction coefficient for calculating step 2 brings formula (6) into, and it is big to obtain visibility value and the visibility value
The visibility value of gas visibility meter measurement.
The utility model is handled using the FPGA data of all optical fibre structure, miniaturization telescope 19 and high speed
System, the compactedness and stability of visibility meter are effectively increased, and using the coaxial transceiving integrated design of optics, eliminated several
The influence of what overlap factor.The utility model is integrated with the sensors such as humidity, air pressure, temperature, realizes more work(of measuring instrument
Energyization, and for the result of these sensors measurement, carried out the judgement of atmospheric condition.The utility model passes through obliquity sensor
20, carry out angle of inclination judgement, it is possible to achieve horizontal direction and oblique Cheng Fangxiang visibility measurement.For oblique Cheng Fangxiang, air
Situation pockety, it is proposed that the iterative algorithm that Collis is combined with Fernald, this iterative algorithm can overcome
The limitation of the methods of Collis, Klett, more fast and stable inverting atmospheric visibility information exactly.The utility model structure
The mathematical modeling solved on visibility has been built, visibility and the more accurate relation of extinction coefficient has been obtained, efficiently reduces
Calculation error.It is atmosphere visibility meter small volume of the present utility model, in light weight, inexpensive and high-precision.
The scope of protection of the utility model includes but is not limited to embodiment of above, and the scope of protection of the utility model is to weigh
Sharp claim is defined, and any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement are each fallen within
The scope of protection of the utility model.
Claims (6)
- A kind of 1. multifunction high-precision atmosphere visibility meter, it is characterised in that：Including shell, the inside of the shell is provided with electricity Source, power-supply controller of electric, telescope, laser flip flop, laser, coupler, the first condenser lens, the second condenser lens, arrowband Optical filter, fpga core control and data processing module, photodetector and external environment condition detecting module, the right side of the shell Surface is provided with mounting hole, and the camera lens of the telescope is fixed in the mounting hole of shell, and the front side surface of the shell, which is provided with, to swash Light trigger button and LCDs, the power supply by power-supply controller of electric respectively with the laser flip flop, laser, light Electric explorer, fpga core control electrically connect with data processing module, external environment condition detecting module and LCDs, described to swash Light trigger button and fpga core control electrically connect with data processing module, the fpga core control and data processing module Electrically connected with laser flip flop, the laser flip flop and laser electrically connect and laser is used to produce laser beam and launch to swash Light beam is provided with the transmitting terminal of transceiver coaxial optical fiber beam, the transceiver to coupler, the focal point of the coupler The common port of coaxial optical fiber beam is located at the focal point of telescope, and the receiving terminal of the transceiver coaxial optical fiber beam is poly- positioned at first The focal point of focus lens, the narrow band pass filter are arranged between the first condenser lens and the second condenser lens, and described second is poly- Focus lens are arranged between narrow band pass filter and photodetector, the control of photodetector and fpga core and data processing Module electrically connects, and external environment condition detecting module and the fpga core control electrically connects with data processing module, the FPGA core Heart control electrically connects with data processing module and LCDs.
- 2. multifunction high-precision atmosphere visibility meter according to claim 1, it is characterised in that：The fpga core control Include A/D analog-to-digital conversion modules, FIFO memory, visibility inverting data handling system, liquid crystal display with data processing module Shield control module, key control module, memory and serial communication module, the A/D analog-to-digital conversion modules respectively with external rings Border detecting module and FIFO memory electrical connection, the FIFO memory electrically connect with visibility inverting data handling system, institute State visibility inverting data handling system to electrically connect with memory and LCDs control module respectively, the memory and string Row communication module electrically connects, and the LCDs control module electrically connects with LCDs, the laser flip flop button Electrically connected by key control module with laser flip flop.
- 3. multifunction high-precision atmosphere visibility meter according to claim 2, it is characterised in that：The external environment condition detection Module includes gps antenna, GPS module, temperature sensor, humidity sensor, baroceptor and obliquity sensor, the GPS Antenna electrically connects with GPS module, the GPS module, temperature sensor, humidity sensor, baroceptor and inclination angle sensing Device electrically connects with A/D analog-to-digital conversion modules.
- 4. multifunction high-precision atmosphere visibility meter according to claim 1, it is characterised in that：The telescope is used and applied Mi Te-Cassegrain telescope, the power-supply controller of electric include power switch, and the power switch is located at the front side of the shell Surface.
- 5. multifunction high-precision atmosphere visibility meter according to claim 4, it is characterised in that：Described Schmidt-card Plug Green's telescope includes aspherical Schmidt corrector, sphere secondary mirror, primary mirror sphere and collimation lens.
- 6. multifunction high-precision atmosphere visibility meter according to claim 1, it is characterised in that：The transceiver is coaxial Fibre bundle includes launching fiber and reception optical fiber, and the launching fiber is made up of single silica fibre, if the reception optical fiber by Dry root silica fibre composition, launching fiber and the reception optical fiber of the forward part of the transceiver coaxial optical fiber beam separate, described The rear portion of transceiver coaxial optical fiber beam divides launching fiber to be located at center, and some root receiving fibers are evenly arranged in launching fiber Surrounding, the rear end part of the transceiver coaxial optical fiber beam are located at the focal point of telescope, the transceiver coaxial optical fiber One end of the launching fiber of the forward part of beam is located at the focal point of coupler, the forward part of the transceiver coaxial optical fiber beam One end of reception optical fiber is located at the focal point of the first condenser lens.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421917A (en) * | 2017-05-17 | 2017-12-01 | 南京信息工程大学 | A kind of multifunction high-precision atmosphere visibility meter and visibility measurement method |
| CN108627812A (en) * | 2018-05-28 | 2018-10-09 | 成都信息工程大学 | A kind of laser radar atmospheric visibility measurement method and device |
| US11536786B2 (en) * | 2019-01-28 | 2022-12-27 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for data transmission in imaging system |
-
2017
- 2017-05-17 CN CN201720543720.1U patent/CN206772826U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421917A (en) * | 2017-05-17 | 2017-12-01 | 南京信息工程大学 | A kind of multifunction high-precision atmosphere visibility meter and visibility measurement method |
| CN107421917B (en) * | 2017-05-17 | 2024-04-19 | 南京信息工程大学 | Multifunctional high-precision atmospheric visibility meter and visibility measuring method |
| CN108627812A (en) * | 2018-05-28 | 2018-10-09 | 成都信息工程大学 | A kind of laser radar atmospheric visibility measurement method and device |
| US11536786B2 (en) * | 2019-01-28 | 2022-12-27 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for data transmission in imaging system |
| US11940514B2 (en) | 2019-01-28 | 2024-03-26 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for data transmission in imaging system |
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