CN106500838A - A kind of unattended target reflecting light spectral property automatic observing system - Google Patents
A kind of unattended target reflecting light spectral property automatic observing system Download PDFInfo
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Abstract
The invention provides a kind of unattended target reflecting light spectral property automatic observing system, including at least one target reflecting light spectral property automatic observation device, target reflecting light spectral property automatic observation device includes spectrometer, Data Collection and control device, Data Collection is connected spectrometer with control device, spectrometer carries out data acquisition under Data Collection with the control of control dress, and send the data of collection to Data Collection and control device, the data storage that Data Collection will be gathered with control device.The present invention can realize the automatic data collection of earth surface reflection spoke luminance spectral data under the conditions of unmanned, overcome manpower and the financial resources consumption of traditional outfield calibration；The earth surface reflection spoke luminance spectral data of high frequency time can be provided, the frequency of the in-orbit radiance monitoring of satellite load can be effectively improved；Overcome because of human users' custom difference, caused by scope is different, data are inconsistent, reduce the uncertainty of remote sensing load radiation calibration.
Description
Technical field
The present invention relates to remote sensing technology field, more particularly to a kind of unattended target reflecting light spectral property automatic Observation
System.
Background technology
Remote sensing technology is a kind of maximally efficient quick, dynamic access target electromagnetic radiation information on a large scale, and then infers
Atural object physical attribute and the technological means of state, have in multiple fields such as agricultural, forestry, resource, city, mapping, meteorologies wide
Wealthy application prospect.With the continuous development of application of remote sensing, each application is for accurate, reliable, consistent quantitative
Remote Sensing Products require more and more higher.Sensor generally using photoelectric technology, is received optical signal by current space remote sensing load
Be changed into electric signal and recorded, however, remote sensing load is during operation, be given a shock, environmental change, Aging equipment
Etc. reason, its radiance can change therewith, for example U.S. EO-1/Hyperion load, and entering the orbit at which can between operation the first two years
See that 8% drift occurs in light-near-infrared spectral coverage, the drift of short-wave infrared spectral coverage is more up to 18%.Thus, remote sensing load is carried out
The radiation calibration of high frequency time, and effectively monitoring remote sensing load operation during performance dynamic change, accurate detection intensity of variation,
The reason for accurately finding change simultaneously formulates targetedly remedial measure, becomes the key for ensureing that remote sensing load data obtains quality.
Remote sensing load is implemented In-flight calibration and performance monitoring mainly have onboard process, star intersects calibrate and outfield calmly
Three kinds of modes of mark.Onboard process, but also can be with the time in view of onboard process device performance mainly using the reference source carried on star
Degenerate, it is difficult to provide consistent test benchmark for the detection of long-time load performance；It is main by contrasting simultaneously that star intersects calibration
The data that the reference load that passes by and load to be evaluated are obtained, evaluate to the performance of load to be evaluated, but this mode is needed
Will high accuracy, the support of the reference load of high stable, and be difficult to accomplish with same time, angle, sky due to two load
Between resolution ratio and spectrum ground is imaged, also limit the application of the method；In recent years, substantial amounts of outfield has been carried out both at home and abroad fixed
Mark work, homogeneous target or scene of the outfield calibration using earth surface, based on the measuring apparatus through strict Laboratory Calibration,
Earth's surface and atmospheric condition parameter are obtained in the satellite timing synchronization that passes by, is extrapolated at satellite entrance pupil in conjunction with radiative transfer model
Energy, is compared with real data and obtains corresponding scaling parameter.Outfield calibration is the load calibration for realizing at this stage tracing to the source
The feasible mode that verifies with data product, but carry out star ground simultaneous test to obtain corresponding measurement data, manpower, thing
Power is larger with the consumption of the aspects such as financial resources, and the change of the aspect such as operating personnel, equipment and instrument in simultaneous test can also introduce larger
Uncertainty, so as to affect the precision and uniformity of load In-flight calibration.
In order to further improve the accuracy and uniformity of load outfield calibration and performance test, the sight of outfield calibration is lifted
Frequency measurement time has progressively carried out self-action radiation calibration skill both at home and abroad in recent years to meet the demand of remote sensing load performance dynamic monitoring
Art research, the particularly international earth observation committee (CEOS) calibration are proposed in 2014 with validity check working group (WGCV)
And built global autonomous radiation calibration net (RADCALNET) plan, it is intended to possess automation by preferred distribution in global
The outfield auto-scaling technical research of normalization operation carried out by ground and the checkout area of atmospheric parameter observing capacity, joint, builds
Possess the calibration data processing center of global unified mass standard, carry out shared the calibration with classical satellite load of calibration data and demonstrate
Application.Wherein, the reflectance spectrum that development can be on a surface target carries out the device of automatic Observation becomes the key for realizing the plan.
But there is no ripe perfect device meet the demand of autonomous radiation calibration both at home and abroad, at present scientific research center of France (CNES) and U.S.
State's Arizona State University has attempted the target property automatic Observation under the conditions of field unattended.Wherein, in French scientific research
The heart (CNES) is made using the mode for improving business automatic sun photometer (sunphotometer, model C IMEL CE318)
Obtain heliograph and can rotate to earth observation direction, channel targets reflection is obtained using its own 9 channel detector being equipped with
Rate；The vertical university of State of Arizona, US then obtains the earth surface reflection spoke brightness of 8 passages using channel-type photodiode.France
Be required for spectral interpolation being carried out to the data for obtaining with the target property automatic observation device in the U.S., have influence on to a certain extent
The precision of the final target reflecting light spectral property for obtaining.
In sum, the major technique defect of remote sensing load calibration technology includes：Current outfield calibration needs to carry out satellite
Synchronous field trial, to obtain target surface spectral reflectivity, it is difficult to meets satellite remote sensing load performance dynamic monitoring for height
The requirement of frequency earth's surface target property observation；Currently earth surface reflection is gathered by the way of man-hour manually hand-held fieldspec radiometer mainly
Rate, the difference of human users' custom, the inconsistency for not resulting in acquisition data on an equal basis of scope, causes load to be calibrated not
Deterministic increase；Observation device is usually placed in far field, both wastes time and energy by manpower copy spectroscopic data, and not
The demand of real-time data warehouse can be met；Carry out some trial sex works at present both at home and abroad in terms of automatic target characteristic, but
The collection of continuous spectrum data is not yet realized, is needed follow-up data spectral interpolation to be carried out in processing, is had influence on the essence of characteristic acquisition
Degree.
Content of the invention
(1) technical problem to be solved
In view of this, present invention is primarily targeted at automatic there is provided a kind of unattended target reflecting light spectral property
Observation system.
(2) technical scheme
The invention provides a kind of unattended target reflecting light spectral property automatic observing system, including：At least one
Target reflecting light spectral property automatic observation device；The target reflecting light spectral property automatic observation device includes：Spectrometer 1, number
According to collection and control device 3；Wherein, the Data Collection is connected the spectrometer 1 with control device 3, and the spectrometer 1 is in institute
Carry out data acquisition under the control for stating Data Collection and control device 3, and by the data of collection send to the Data Collection with
Control device 3, the data storage that the Data Collection will be gathered with control device 3.
(3) beneficial effect
From above-mentioned technical proposal as can be seen that the unattended target reflecting light spectral property automatic observing system of the present invention
Have the advantages that：
(1) present invention can realize the automatic data collection of earth surface reflection spoke luminance spectral data under the conditions of unmanned, overcome
Traditional outfield calibration needs the consumption of the aspects such as the manpowers brought by a large amount of artificial outfield operations and financial resources；
(2) the earth surface reflection spoke luminance spectral data of high frequency time can be provided, the in-orbit radiation of satellite load can be effectively improved
The frequency of performance monitoring；
(3) place is monitored using the system of the present invention, is overcome because of human users' custom difference, scope not
Inconsistent with caused data, the uniformity of measuring instrument and measurement data is ensure that, reduces remote sensing load radiation calibration
Uncertain；
(4) column of the invention adopts hollow structure, internal setting trough, and cable can be avoided to be leaked in air cruelly for a long time
In, so as to improve service life；
(5) by RS485 bus bar tidal data recovering centers and target reflecting light spectral property automatic observation device so that be
System has very high autgmentability, can Dynamic expansion target reflecting light spectral property automatic observation device as needed quantity；
(6) data distribution server realizes the backup and issue of data, can not only so meet remote date transmission
Demand, also can guarantee that the real-time analyze data of field experiment personnel；
(7) GPRS transceiver modules have relatively low power consumption, and energy cycle Self-resetting, prevent the occurrence of surprisingly crashing,
Being capable of reliable, real-time transmission spectrum data.
Description of the drawings
Unattended target reflecting light spectral property automatic observing system concise structure figures of the Fig. 1 for the embodiment of the present invention；
Target reflecting light spectral property automatic observation device physical structures of the Fig. 2 for the embodiment of the present invention.
【Symbol description】
1- spectrometers；2- earth surface reflection spoke luminance spectral data；3- Data Collections and control device；In 4- tidal data recoverings
The heart；5- radio receiving transmitting modules；6- data distribution servers；7- target reflecting light spectral property automatic Observation framves；8- columns；9- is horizontal
Arm；10- industrial control boxes；11- transition pieces.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
The invention provides a kind of unattended target reflecting light spectral property automatic observing system, including：One more
Individual target reflecting light spectral property automatic observation device, each target reflecting light spectral property automatic observation device include：Spectrometer 1 with
And Data Collection and control device 3, wherein, Data Collection is connected spectrometer 1 with control device 3, spectrometer 1 in Data Collection and
Data acquisition being carried out under the control of control device 3, and sending the data of collection to Data Collection and control device 3, data are received
The data storage that collection will be gathered with control device 3.
Wherein, Data Collection includes instruction sending module, data reception module and memory module, spectrum with control device 3
Instrument 1 includes command reception module, data acquisition module and data transmission blocks.
Data Collection is connected the command reception module of spectrometer with the instruction sending module of control device 3, Data Collection with
The data reception module of control device 3 connects the data transmission blocks of spectrometer, and instruction sending module sends acquisition instructions, instruction
Receiver module reception acquisition instructions, data collecting module collected data, data transmission blocks are by the data is activation for gathering to data
Receiver module, the data storage that memory module will be gathered.
In order to meet demand of the remote sensing load radiation calibration to ground observation spectrum data, spectrometer needs to cover certain
EWL simultaneously has higher spectral resolution, as target reflecting light spectral property automatic observation device needs scene in the wild
Lower longtime running, it is therefore necessary to the spectrometer for selecting compact conformation, low in energy consumption, environmental suitability strong.Of the invention preferred
A CR spectrometers of Colorimetry Research companies, this spectrometer EWL cover 380-1080nm, spectrum
Resolution ratio 2nm, spectral measurement precision 2%, apparatus measures stability 1%, -10 DEG C of operating temperature range～50 DEG C, power consumption
600mW, weight 0.54kg disclosure satisfy that application demand.
Data Collection is preferably industrial computer with control device 3, and its memory module is local disk, and industrial computer has abundant
System resource and peripheral interface, operating power consumption are low, can be good at supporting expanding of system function.Timing controlled spectrum on industrial computer
Instrument 1 carries out data acquisition, and the data of collection are stored in local disk.
In the present invention, Data Collection triggers the periodically collection earth surface reflection of spectrometer 1 by the way with control device 3
Spoke luminance spectral data 2, and the earth surface reflection spoke luminance spectral data 2 of acquisition are stored temporarily on local hard drive, complete mesh
The automatic Observation of mark reflective spectral property.
As can be seen here, the present invention can realize adopting automatically for earth surface reflection spoke luminance spectral data under the conditions of unmanned
Collection, overcoming traditional outfield calibration needs the consumption of the aspects such as a large amount of manually manpowers brought by outfield operations and financial resources；And
The earth surface reflection spoke luminance spectral data of high frequency time can be provided, the frequency of the in-orbit radiance monitoring of satellite load can be effectively improved
Secondary；Place is monitored using the system of the present invention, is overcome because human users' custom difference, scope are different caused
Data are inconsistent, ensure that the uniformity of measuring instrument and measurement data, reduce the uncertainty of remote sensing load radiation calibration.
Target reflecting light spectral property automatic observation device also includes：Target reflecting light spectral property automatic Observation frame 7, spectrometer
1st, Data Collection and control device 3 are integrated on target reflecting light spectral property automatic Observation frame 7 jointly.As shown in Fig. 2 target is anti-
Penetrating spectral characteristic automatic Observation frame 7 includes：Column 8, transverse arm 9, industrial control box 10 and transition piece 11, wherein,
Column 8 is fixed on earth's surface, and target reflecting light spectral property automatic observation device is played a supportive role, the height of column 8
It is preferred that 1-2m, the environment also dependent on place itself is adjusted；Further, column 8 adopts hollow structure, and internal setting is walked
Wire casing, accommodates spectrometer 1 and the cable between Data Collection and control device 3, it is to avoid cable is leaked in atmosphere for a long time cruelly, reduces making
Use the life-span.
Transverse arm 9 is vertical with column 8 to be fixedly connected, and the length of transverse arm 9 is preferably not less than 0.5m.
Industrial control box 10 is fixed on column 8, and preferably stainless steel body structure, Data Collection are arranged with control device 3
In industrial control box 10.
Transition piece 11 is arranged on one end away from column 8 of transverse arm 9, and spectrometer 1 is fixed on transverse arm 9 by transition piece 11
On.
In the present embodiment, target reflecting light spectral property automatic observation device also includes：Power supply modular converter and temperature control
Control equipment, the two are arranged in industrial control box 10.Wherein,
Temperature control modules include：SIEMENS PLC, temperature sensor, heater and fan, when temperature is less than setting lower limit
During value, PLC starts heater heating, and when temperature is higher than higher limit is set, PLC starts fan, accelerates air circulation, so as to protect
Card equipment is operated in suitable working range.
220V civil powers are converted to spectrometer 1, Data Collection and control device 3 and temperature control mould by power supply modular converter
The operating voltage that block needs.
In another embodiment of the invention, as shown in figure 1, target reflecting light spectral property automatic observing system also includes：
Tidal data recovering center 4, tidal data recovering center 4 include RS485 transceiver modules, have N number of target reflecting light spectral property from in-motion viewing in Fig. 1
Device is surveyed, the Data Collection of target reflecting light spectral property automatic observation device includes RS485 transceiver modules with control device 3,
Data Collection is interconnected by respective RS485 transceiver modules with tidal data recovering center 4 with control device 3, N number of target reflecting light spectrum
Characteristic automatic observation device constitutes target reflecting light spectral property automatic Observation network with tidal data recovering center 4.
Data Collection is referred to by the remotely control that RS485 transceiver module receiving datas collect the transmission of center 4 with control device 3
Order, remote control commands include query facility state, running parameter setting, data transfer etc., and hold according to remote control commands
The related action of row.
By RS485 transceiver modules, acquisition is stored in each Data Collection and control device is local at tidal data recovering center 4
Earth surface reflection spoke luminance spectral data and running parameter.
Wherein, the present invention selects high performance RS485 transceiver modules, the built-in photoisolator of the module and DC/DC power supplys
Isolation module, using the teaching of the invention it is possible to provide the up to isolation voltage of 2500Vrms, suppresses protector and discharge tube with quick transient voltage,
Lightning and ESD can effectively be suppressed, there is provided per the thunderbolt of line 1500W, surge protection power and a variety of causes on the line
The surge voltage of generation and transient overvoltage；Minimum interelectrode capacity ensure that the high-speed transfer of RS485 interfaces, in transmission range be
When in the range of 300M, baud rate reaches 128000bps, and when transmission range is in the range of 2.4KM, baud rate reaches 38400bps,
When transmission range is in the range of 5KM, baud rate is 9600bps；The operating temperature of the module is -25 DEG C to 75 DEG C, relative humidity
For 5% to 95%, it is ensured that RS485 transceiver modules are reliably run under complex environment in the wild, due to RS485 buses support many
Equipment carry so that target reflecting light spectral property automatic observing system has very high autgmentability, dynamic can expand as needed
Fill the quantity of target reflecting light spectral property automatic observation device.
With the development of cordless communication network, mobile phone signal achieves all standing substantially, realizes light by wireless communication networks
The remote transmission of modal data is a kind of easily means.In other embodiments of the invention, as shown in figure 1, target reflecting light
Spectral property automatic observing system also includes：Data distribution server 6, tidal data recovering center 4 also include radio receiving transmitting module 5.
Spectroscopic data is obtained in real time in order to long-range, and in the range of bandwidth is allowed, tidal data recovering center 4 passes through wireless receiving and dispatching
The teleinstruction that 5 receiving data publisher server of module 6 sends, and by earth surface reflection spoke luminance spectral data and running parameter etc.
Local data is sent to data distribution server 6, and data distribution server 6 collects the local of the transmission of center 4 by receiving data
Data, copy the backup for locally realizing data to, and externally issue, and can not only so meet the demand of remote date transmission,
Also field experiment personnel real-time analyze data can guarantee that.
Wherein, radio receiving transmitting module 5 be preferably GPRS transceiver modules, the GPRS transceiver modules can temperature range for-
30 DEG C to 75 DEG C, relative humidity be 5% to 95% in the environment of work, with relatively low power consumption, and can cycle Self-resetting, prevent
The occurrence of unexpected deadlock, being capable of reliable, real-time transmission spectrum data.
So far, the present embodiment has been described in detail already in connection with accompanying drawing.According to above description, those skilled in the art
The unattended target reflecting light spectral property automatic observing system of the present invention should be had and clearly be recognized.
It should be noted that in accompanying drawing or specification text, the implementation that do not illustrate or describe is affiliated technology
In field, form known to a person of ordinary skill in the art, is not described in detail.Additionally, above-mentioned definition to each element not only limiting
The various concrete structures mentioned in embodiment, shape, those of ordinary skill in the art can simply be changed to which or be replaced
Change, for example：
(1) demonstration of the parameter comprising particular value can be provided herein, but these parameters is without the need for being definitely equal to corresponding value, and
It is can be similar to analog value in acceptable error margin or design constraint；
(2) direction term that mentions in embodiment, for example " on ", D score, "front", "rear", "left", "right" etc., be only ginseng
The direction of accompanying drawing is examined, is not used for limiting the scope of the invention；
(3) above-described embodiment can be based on design and the consideration of reliability, and the collocation that is mixed with each other is used or and other embodiment
Mix and match is used, i.e., the technical characteristic in different embodiments can freely form more embodiments.
In sum, a kind of unattended target reflecting light spectral property automatic observing system that the present invention is provided, can
Realize the automatic data collection of earth surface reflection spoke luminance spectral data under the conditions of unmanned, overcome traditional outfield calibration need a large amount of
The consumption of the aspect such as manpower that artificial outfield operation is brought and financial resources；And the earth surface reflection spoke brightness light of high frequency time can be provided
Modal data, can effectively improve the frequency of the in-orbit radiance monitoring of satellite load；Place is carried out using the system of the present invention
Monitoring, overcomes because of human users' custom difference, caused by scope is different, data are inconsistent, ensure that measuring instrument with
The uniformity of measurement data, reduces the uncertainty of remote sensing load radiation calibration.
Particular embodiments described above, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further in detail
Describe bright, the be should be understood that specific embodiment that the foregoing is only the present invention in detail, be not limited to the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements that is done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of unattended target reflecting light spectral property automatic observing system, it is characterised in that include：At least one target
Reflective spectral property automatic observation device；
The target reflecting light spectral property automatic observation device includes：Spectrometer (1), Data Collection and control device (3)；Its
In,
The Data Collection is connected the spectrometer (1) with control device (3), spectrometer (1) the Data Collection with
Data acquisition is carried out under the control of control device (3), and sends the data of collection to the Data Collection and control device
(3) data storage that, the Data Collection will be gathered with control device (3).
2. target reflecting light spectral property automatic observing system as claimed in claim 1, it is characterised in that
The Data Collection is included with control device (3)：Instruction sending module, data reception module and memory module；The light
Spectrometer (1) includes：Command reception module, data acquisition module and data transmission blocks；
The instruction sending module sends acquisition instructions, and the command reception module receives acquisition instructions, the data acquisition module
Block gathered data, by the data is activation for gathering to the data reception module, the memory module will for the data transmission blocks
The data storage of collection.
3. target reflecting light spectral property automatic observing system as claimed in claim 1, it is characterised in that the target reflecting light
Spectral property automatic observation device also includes：Target reflecting light spectral property automatic Observation frame (7), spectrometer (1), Data Collection
It is integrated on the target reflecting light spectral property automatic Observation frame (7) jointly with control device (3).
4. target reflecting light spectral property automatic observing system as claimed in claim 3, it is characterised in that the target reflecting light
Spectral property automatic Observation frame (7) includes：Column (8), transverse arm (9), industrial control box (10) and transition piece (11)；Wherein,
Column (8) are fixed on earth's surface, and transverse arm (9) are vertical with column (8) to be fixedly connected, and described industrial control box (10) are fixed
On column (8), the Data Collection is arranged in industrial control box (10) with control device (3), and transition piece (11) are arranged on
One end away from column of transverse arm, described spectrometer (1) are fixed on transverse arm (9) by transition piece (11).
5. target reflecting light spectral property automatic observing system as claimed in claim 4, it is characterised in that the target reflecting light
Spectral property automatic observation device also includes：Power supply modular converter and Temperature-controlled appliance, the two is arranged in industrial control box (10).
6. target reflecting light spectral property automatic observing system as claimed in claim 1, it is characterised in which also includes：Data
Collect center (4), the target reflecting light spectral property automatic observation device constitutes target reflecting light spectrum with tidal data recovering center (4)
Characteristic automatic Observation network.
7. target reflecting light spectral property automatic observing system as claimed in claim 6, it is characterised in that
With control device (3), tidal data recovering center (4) and Data Collection include that RS485 transceiver modules, the data are received
Collection collects the remote control commands that center (4) sends, the number with control device (3) by RS485 transceiver module receiving datas
According to center (4) is collected by RS485 transceiver modules, it is bright that acquisition is stored in the local earth surface reflection spoke of Data Collection and control device
Degree spectroscopic data.
8. target reflecting light spectral property automatic observing system as claimed in claim 6, it is characterised in which also includes：Data
Publisher server (6), tidal data recovering center (4) also include：Radio receiving transmitting module (5)；
Described tidal data recovering center (4) are sent by the radio receiving transmitting module (5) reception data distribution server (6)
Teleinstruction, and data distribution server (6), the data distribution server is given by earth surface reflection spoke luminance spectral data is activation
(6) by earth surface reflection spoke luminance spectral data backup, and externally issue.
9. target reflecting light spectral property automatic observing system as claimed in claim 1, it is characterised in that the Data Collection with
Control device (3) is industrial computer.
10. target reflecting light spectral property automatic observing system as claimed in claim 8, it is characterised in that the wireless receiving and dispatching
Module (5) is GPRS transceiver modules.
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