CN106404623A - Suspended silt concentration monitoring system and monitoring method - Google Patents
Suspended silt concentration monitoring system and monitoring method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 84
- 239000013307 optical fiber Substances 0.000 claims abstract description 64
- 238000003384 imaging method Methods 0.000 claims abstract description 53
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000013049 sediment Substances 0.000 claims description 45
- 238000004062 sedimentation Methods 0.000 claims description 26
- 238000009825 accumulation Methods 0.000 claims description 21
- 238000004148 unit process Methods 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 8
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- 230000003287 optical effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000000790 scattering method Methods 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003760 magnetic stirring Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000035611 feeding Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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Abstract
The invention relates to a suspended silt concentration monitoring system, which consists of a control unit, a light source, an imaging device and a probe. The probe comprises a fixed device, light-transmission optical fiber and an optical fiber image transmission bundle, the optical fiber image transmission bundle includes tens of thousands of monofilament fibers, images picked by an image pickup end of the optical fiber image transmission bundle are transmitted to an output end through each monofilament fiber point by point, the output end is connected to the imaging device, and the control unit is connected to the light source and the imaging device respectively. In addition, the invention also provides a monitoring method. The suspended silt concentration monitoring system and monitoring method provided by the invention utilize light-transmission optical fiber light guiding, optical fiber image transmission bundle image pickup and other methods, realize open-type probe miniaturization, combine the imaging device to realize real-time amplification imaging of silt solutions, improve the image processing speed according to digital image gray analysis of and improve, can quickly acquire silt concentration in real time, and have the advantages of little interference to to-be-measured water, high measurement speed, large measurement range and high accuracy.
Description
Technical field
The present invention relates to monitoring water environment technical field, more particularly to a kind of Suspended Sedimentation Concentration monitoring system and monitoring
Method, it is possible to achieve the quick measurement to water body microvariations to be measured, wide range and degree of precision.
Background technology
Sediment charge not only directly affects the optical characteristics such as water quality transparency and water colour, to aquatic ecological environment and river mouth sea
Bank erosion and deposition evolution process also has an impact.In river and sea water, Suspended Sedimentation Concentration is that the most basic crucial hydrology is joined with environment
Number, the research to the accurate quantification of water body sediment concentration has important practical significance.Research suspended sediment mass concentration at present
Method have the methods such as sampling method, optical method, acoustic method and image method.
Sampling method is a kind of traditional sediment concentration analysis mode.Using sampler field investigation and sampling, then water sample is carried out
Sucking filtration, weigh, calculate suspended sediment.Although the method certainty of measurement is high, cannot realize water body sediment concentration is determined
Point real-time monitoring.
Optical method mainly utilizes optical instrument, according to Mie scattering principle monitor Suspended Matter in Water matter due to absorbing, anti-
The turbidity that the impact that factor causes to transmitted light and scattered light carrys out analyzing water body such as penetrate and scatter, then demarcate water turbidity and mud
The quantitative relationship of the concentration of suspension such as sand, obtains the sediment concentration of water body.
According to the angular relative position of light source and sensor, optical method also can be divided into transmission beam method, scattering method and backscattering
Method.Optics dorsad scattering method be by sensor be secured within direction of beam propagation be in larger obtuse angle position on；Scattering method typically will
Sensor is fixed on and direction of beam propagation upright position；Sensor is fixed on just to direction of beam propagation position transmission beam method.
In measurement process, the light beam of directive medium runs into light tight granule and reflection occurs and scatters the original direction of propagation of change, in each biography
Broadcast in direction, 90 ° of direction scattered lights are affected less by sediment grain size, and backscattering angle is provided that more when sediment concentration is higher
Plus sufficient metrical information.For eliminating Color influences, said method is typically chosen the near-infrared light source of 860 ± 30nm.Due to not
Same substrate, the difference to light scattering property for the sand grain of particle diameter, above-mentioned optical detection method accuracy is still relatively low.90 ° simultaneously
Direction scattering optical detection is only applicable to the less situation of sediment concentration, generally takes into account range and degree of accuracy, above-mentioned optical detection side
Method often detects 90 ° of scattered lights and back-scattering light using dual sensor mode.
Acoustic method passes through to measure the acoustic signal inverting reflected by silt or other particle in water body from certain section
Calculate concentration of suspended particles.Although the reflex strength of sound wave increases with sediment concentration, it can be dense with silt in communication process
Degree increases and decays, and therefore this kind of method can only measure 0.6-3.0kg/m3Finite Concentration scope.
With the development of camera work and Digital image technology, it is possibly realized using image method measurement sediment concentration.Zhong Qiang
Et al. propose sediment concentration level in a kind of natural river and join original position real-time measurement apparatus and its method
(ZL201410190678.0), this device passes through the water hull body that enters of a closing and realizes sediment concentration level and join adopting in real time in situ
Collection, enters water hull body side surface setting transparent flat observation window, internal fixed installation annular LED light source, micro-lenss and industrial camera
Etc. measuring apparatus；Image subsequently will be gathered and pass through the acquisition of the image processing techniquess such as particle image recognizer and Laplace operator
Sediment concentration and level join information.The method image processing process is more complicated, and processing speed is slower, and then affects entirely to measure
The sampling interval of journey.
Above-mentioned optical method and acoustic method, in addition to the limitation of sediment charge certainty of measurement and measurement range, also exist and visit into water
The big shortcoming of area of bed.Although image method has breakthrough in sediment charge certainty of measurement and measurement range, enter water prode
Size and measuring speed problem still do not solve.Large scale probe can have an immense impact on to water body to be measured, slower measuring speed
The quick change of water body sediment concentration cannot be measured, very unfavorable to water body dynamics research.
Content of the invention
In consideration of it, being necessary to provide a kind of Suspended Sedimentation Concentration little to water body to be measured interference, that measuring speed is fast quickly real
When monitoring system and monitoring method.
A kind of Suspended Sedimentation Concentration monitoring system, including control unit, light source, imaging device and probe, described probe bag
Include fixing device, Optic transmission fiber and optical fiber image transmission beam, described optical fiber image transmission beam includes tens thousand of monofilament optical fiber, described fibre optic image transmission
One end of bundle is to pick up as end, and the other end is outfan, and described picking up is passed through every as the image of end pickup by described optical fiber image transmission beam
Described monofilament optical fiber pointwise is transmitted to described outfan, and described picking up is fixed in described fixing device as end, described outfan and institute
State imaging device connect, one end of described Optic transmission fiber is light end, described go out light end be fixed in described fixing device, described
The other end of Optic transmission fiber and described light source connect, and picking up of described optical fiber image transmission beam goes out light end phase as end and described Optic transmission fiber
To setting, described control unit is connected with described imaging device with described light source respectively.
Wherein in an embodiment, described imaging device includes adjustable lens barrel, lens, CCD camera and optic fibre switching part,
Described adjustable lens barrel includes fixed lens barrel and mobile lens barrel, described lens in described fixed lens barrel, described CCD camera located at
Described fixed lens barrel is sheathed in described fixed lens barrel away from one end of described mobile lens barrel, one end of described mobile lens barrel, institute
State the other end located at described mobile lens barrel for the optic fibre switching part, described mobile lens barrel may move with respect to described fixed lens barrel.
Wherein in an embodiment, the perpendicular bisector weight picking up as end going out light end and optical fiber image transmission beam of described Optic transmission fiber
Close, the core diameter of described Optic transmission fiber is more than the diameter of the effective imaging region picking up as end of described optical fiber image transmission beam.
Wherein in an embodiment, the distance picked up as end going out light end and described optical fiber image transmission beam of described Optic transmission fiber
For grade.
Wherein in an embodiment, a diameter of 13 μm of single described monofilament optical fiber in described optical fiber image transmission beam, point
Resolution 44LP/mm.
Wherein in an embodiment, a diameter of 2mm of described Optic transmission fiber, a diameter of 1mm of described optical fiber image transmission beam.
Wherein in an embodiment, described pop one's head in as open system.
A kind of monitoring method of employing Suspended Sedimentation Concentration monitoring device, comprises the steps：
Described probe is put in silt liquor；
Described control unit sending signal opens described light source and described imaging device, by picking up of described optical fiber image transmission beam
As some images of end continuous acquisition；
Described imaging device sends the described image of collection to described control unit；
Described control unit processes described image, obtains, shows the average gray accumulation mean of described image in real time；
By the relational expression of sediment concentration value and the average gray accumulation mean of image, calculate different described average ashes
Degree accumulation mean corresponding sediment concentration value.
Wherein in an embodiment, the relation of the average gray accumulation mean of described sediment concentration value and described image
Formula obtains by the following method：
It is respectively configured the silt liquor of variable concentrations；
The fixing device of described probe is put in described silt liquor；
Described control unit sending signal opens described light source and described imaging device, multiple images of continuous acquisition；
Described imaging device sends the described image of collection to described control unit；
Described control unit processes described image, the average gray value of acquisition in real time, display and every described image of storage,
Accumulation mean and gray scale spectrum information, obtain the average gray accumulation mean of multiple described images under different sediment concentrations；
Obtain the relational expression of sediment concentration value and the average gray accumulation mean of described image by matching.
Wherein in an embodiment, before described probe is put into the step in silt liquor, also include to described
The step that Suspended Sedimentation Concentration monitoring device is demarcated, scaling method is as follows：
The fixing device of described probe is put in clear water；
Described control unit sending signal opens described light source and described imaging device, adjusts imaging device and makes imaging dress
Put blur-free imaging, adjust light source intensity simultaneously, prevent image from supersaturation occurring.
Above-mentioned Suspended Sedimentation Concentration monitoring system and monitoring method, pick up picture etc. using Optic transmission fiber leaded light, optical fiber image transmission beam
Method it is achieved that the miniaturization of open probe, achieves in conjunction with imaging device and zooms into picture in real time to silt liquor, according to
Digital image gray level analysis improves image processing speed, can obtain sediment concentration real-time, has and water body to be measured is done
Disturb the advantages of little, measuring speed is fast, range is big and precision is higher.
Brief description
Fig. 1 is the structural representation of the Suspended Sedimentation Concentration monitoring system of an embodiment；
Fig. 2 is the mplifying structure schematic diagram of the probe shown in Fig. 1；
Fig. 3 is the demarcation schematic diagram of the Suspended Sedimentation Concentration monitoring system shown in Fig. 1.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become apparent from, below in conjunction with drawings and Examples, to this
Bright it is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and without
In the restriction present invention.
Refer to Fig. 1, the Suspended Sedimentation Concentration monitoring system 100 of an embodiment, including probe 10, light source 20, imaging
Device 30 and control unit 40.
Probe 10 includes fixing device 12, Optic transmission fiber 14 and optical fiber image transmission beam 16.Optical fiber image transmission beam 16 includes tens thousand of
Monofilament optical fiber, one end of optical fiber image transmission beam 16 is to pick up as end 162, and the other end is outfan 164, and optical fiber image transmission beam 16 will pick up as end
The image of 162 pickups is transmitted to outfan 164 by every monofilament optical fiber pointwise, picks up and is fixed in fixing device 12 as end 162, defeated
Go out end 164 and imaging device 30 connects.One end of Optic transmission fiber 14 is light end 142, goes out light end 142 and is fixed on fixing device 12
On, the other end of Optic transmission fiber 14 and light source 20 connect.Picking up of optical fiber image transmission beam 16 goes out light end as end 162 and Optic transmission fiber 14
142 are oppositely arranged.
Wherein in an embodiment, refer to Fig. 2, fixing device 12 includes two flange seats 122, two flange seats
122 are fixedly connected with nut by more than two fixed screws 124.Pick up as end 162 and go out light end 142 respectively by fibre-optical splice
It is arranged on two flange seats 122.Fibre-optical splice is specifically as follows SMA905 fibre-optical splice.It is appreciated that fixing device 12
It can be the fixing device of other structures.
Further, the perpendicular bisector weight as far as possible picking up as end 162 going out light end 142 and optical fiber image transmission beam 16 of Optic transmission fiber 14
Close.The core diameter of Optic transmission fiber 14 is more than the diameter of the effective imaging region picking up as end of optical fiber image transmission beam 16.Ensure output
Light energy uniform illumination optical fiber image transmission beam 16 imaging region.Wherein, effective imaging region is that optical fiber image transmission beam 16 fibre core is horizontal
Section.The light end 142 that goes out of Optic transmission fiber 14 is grade with picking up as the distance at end 162 of optical fiber image transmission beam 16, can make water body stream
Cross.
In one embodiment, a diameter of 2mm of Optic transmission fiber, a diameter of 1mm of optical fiber image transmission beam.Optical fiber image transmission beam
In a diameter of 13 μm of single monofilament optical fiber, resolution 44LP/mm.Optical fiber image transmission beam 16 is by ten hundreds of single monofilament optical fiber
Composition, can be transmitted to outfan as the certain area graph picture in end 162 by every monofilament optical fiber pointwise by picking up, have numerical aperture greatly,
The features such as aberrationless and the depth of field are little, resolution is determined by the single monofilament fibre diameter of optical fiber image transmission beam 16.
Probe 10 is open subaqueous survey equipment.Go out light end 142 and optical fiber image transmission beam 16 except Optic transmission fiber 14
Pick up as end 162 and fixed screw 124 and nut, probe 10 four sides is open, reduces probe 10 shadows to water sports as far as possible
Ring.
Light source 20 couples LED light source for optical fiber.Light source 20 is connected with Optic transmission fiber 14, for probe 140 offer lighting source.
Wherein in an embodiment, light source 20 is 15W high-capacity LED cold light source.
Imaging device 30 gathers and picks up, by optical fiber image transmission beam 16, the suspension bed sediment image sending as end 162.At one
In embodiment, imaging device 30 includes adjustable lens barrel 32, lens 34, CCD camera 36 and optic fibre switching part 38.
Adjustable lens barrel 32 includes fixed lens barrel 322 and mobile lens barrel 324, and lens 34 are in fixed lens barrel 322.CCD phase
Located at fixed lens barrel 322 away from the one end moving lens barrel 324, wherein in an embodiment, CCD camera 36 is MV- to machine 36
1300UM camera.One end of mobile lens barrel 324 is sheathed in fixed lens barrel 322, and optic fibre switching part 38 is located at mobile lens barrel 324
The other end, mobile lens barrel 324 may move with respect to fixed lens barrel 322.Wherein in an embodiment, move lens barrel 324 and consolidate
Fixed lens barrel 322 is threaded connection.The female thread of the external screw thread of mobile lens barrel 324 and fixed lens barrel 322 connects.
By arrange between the output end of image 164 of lens 34 and optical fiber image transmission beam 16 and CCD camera 36 photosurface away from
From can be with control figure as magnification ratio.It is fine-tuning right that lens 34 arrive the distance between output end of image 164 of optical fiber image transmission beam 16
Burnt it is ensured that outfan 164 blur-free imaging to optical fiber image transmission beam 16 for the CCD camera 36.
Control unit 40 is connected with imaging device 30 with light source 20 respectively.Control unit 40 passes through data wire 50 and light source 20
It is connected with imaging device 30.Wherein in an embodiment, control unit 40 is computer.Specifically, control unit 40 He
The CCD camera 36 of imaging device 30 connects.
Control unit 40 is imaged using Matlab software programming programme-control light source 20 and CCD camera 36, will gather simultaneously
To image carry out image procossing and storage, finally show and store probe 10 positions at sediment concentration real-time letter
Breath.Wherein, image procossing adopt simple and efficient gray analysis mode it is ensured that measurement process real-time.
Above-mentioned Suspended Sedimentation Concentration monitoring system 100 work process is：Probe 10 is sunk to water body to be measured, opens control single
Unit 40 and control software, send acquisition by controlling software design acquisition parameter, are beaten by data wire 50 transmission instruction
Open the light source 20 and CCD camera 36；Light source 20 illuminates the water body at probe 10 by Optic transmission fiber 14, and optical fiber image transmission beam 16 will pick up picture
Nearby suspension bed sediment image is sent to outfan 164 at end 162, and suspension bed sediment image passes through lens 34 amplification and is imaged onto CCD camera
36 photosurface；CCD camera 36 timing continuous acquisition image is simultaneously sent to control unit 40, and control unit 40 is directly according to prior
Demarcate relational expression quickly to show surveyed Aquatic suspended solids concentration in real time in certain window and provide the accumulation of continuous measurement and put down
All results；After collection finishes, click on and preserve order data storage.
Above-mentioned Suspended Sedimentation Concentration monitoring system 100, using sides such as guide-lighting, optical fiber image transmission beam 160 pictures of Optic transmission fiber 14
Method it is achieved that the miniaturization of open probe 10, achieves in conjunction with imaging device 30 and zooms into picture, root in real time to silt liquor
Improve image processing speed according to digital image gray level analysis, sediment concentration can be obtained real-time, have to water body to be measured
The advantages of interference is little, measuring speed is fast, range is big and precision is higher.
Additionally, also providing a kind of monitoring method using above-mentioned Suspended Sedimentation Concentration monitoring device 100, walk including following
Suddenly：
S10, probe is put in silt liquor.
Please also refer to Fig. 3, before probe is put into the step in silt liquor, also include Suspended Sedimentation Concentration is supervised
Survey the step that device is demarcated, scaling method is as follows：
S1, the fixing device of probe is put in clear water.
Specifically, choose or make suitable demarcation container 60, probe is arranged on adjustable fixation and fills 90 feedings and demarcate and holds
In device 60, to demarcating injected clear water in container 60, until flooding probe.
S2, control unit sending signal open light source and imaging device, adjust imaging device and imaging device is clearly become
Picture, adjusts light source intensity simultaneously, prevents image from supersaturation.
Specifically, open the software operation interface of control unit, send instruction, open light source, adjust imaging device adjustable
Lens barrel focusing is so that CCD camera, to optical fiber image transmission beam outfan blur-free imaging, adjusts light source intensity, prevents ccd image from going out simultaneously
Existing supersaturation.Then, fixed light source intensity, screws the fixing snap ring on adjustable lens barrel.
S20, control unit sending signal open light source and imaging device, picking up as end continuous acquisition by optical fiber image transmission beam
Some images.
S30, imaging device send the image of collection to control unit.
S40, control unit process image, in real time acquisition, the average gray accumulation mean of display image.
Wherein in an embodiment, control unit can also preserve ten as the image of end continuous acquisition.
S50, by the relational expression of the average gray accumulation mean of sediment concentration value and image, the different average ashes of calculating
Degree accumulation mean corresponding sediment concentration value, realizes the real-time monitoring of sediment concentration.
Specifically, silt can be provided by the gathered image of the quick real-time processing of Matlab software and according to demarcating relational expression
Concentration, shows in real time and records sediment concentration in software operation interface display window.Last click data preserves, and stores surveyed mud
Husky concentration information.
In S50, sediment concentration value is obtained by the following method with the relational expression of the average gray accumulation mean of image：
S51, it is respectively configured the silt liquor of variable concentrations.
S52, the fixing device of probe is put in silt liquor.
Specifically, it is placed in demarcating container 60 on magnetic stirring apparatuss 70, weigh certain mass silt and certain volume clear water,
Pour in demarcation container 60, make specific sediment concentration solution, and the magnetic stir bar 80 using magnetic stirring apparatuss 70 is continuous
Stirring, prevent silt be layered, will enter water prode put into demarcation container 60 in, by adjustable fixer 90 adjusting position it is ensured that
Probe is flooded by silt liquor.
S53, control unit sending signal open light source and imaging device, multiple images of continuous acquisition.
S54, imaging device send the image of collection to control unit.
S55, control unit process image, obtain in real time, show and store the average gray value of every image, cumulative mean
Value and gray scale spectrum information, obtain the average gray accumulation mean of multiple images under different sediment concentrations.
S56, obtained by matching sediment concentration value and image average gray accumulation mean relational expression.
After the relational expression of the average gray accumulation mean obtaining sediment concentration value and image by matching, can also lead to
Cross the relational expression demarcated, recompilate software, each picture average gray value is corresponded to into sediment concentration.
Above-mentioned Suspended Sedimentation Concentration monitoring method, picks up the methods such as picture using Optic transmission fiber leaded light, optical fiber image transmission beam, is combined into
As device achieves picture is zoomed in real time to silt liquor, image processing speed is improve according to digital image gray level analysis,
Sediment concentration can be obtained real-time, and there is little to water body to be measured interference, measuring speed is fast, range is big and precision is higher etc.
Advantage.Additionally, above-mentioned Suspended Sedimentation Concentration monitoring method is simple to operate, real-time.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
Member, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of Suspended Sedimentation Concentration monitoring system is it is characterised in that include control unit, light source, imaging device and probe, institute
State probe and include fixing device, Optic transmission fiber and optical fiber image transmission beam, described optical fiber image transmission beam includes tens thousand of monofilament optical fiber, described
One end of optical fiber image transmission beam is to pick up as end, and the other end is outfan, and described optical fiber image transmission beam picks up described as the image of end pickup
Described outfan is transmitted to by monofilament optical fiber pointwise every described, described picking up is fixed in described fixing device as end, described defeated
Go out end and described imaging device connect, one end of described Optic transmission fiber is light end, described go out light end be fixed on described fixing dress
Put, the other end of described Optic transmission fiber and described light source connect, the picking up as end and described Optic transmission fiber of described optical fiber image transmission beam
The light end that goes out be oppositely arranged, described control unit is connected with described imaging device with described light source respectively.
2. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 is it is characterised in that described imaging device includes adjustable mirror
Cylinder, lens, CCD camera and optic fibre switching part, described adjustable lens barrel includes fixed lens barrel and mobile lens barrel, and described lens are located at institute
State in fixed lens barrel, described CCD camera located at described fixed lens barrel away from described mobile lens barrel one end, described mobile lens barrel
One end is sheathed in described fixed lens barrel, and described optic fibre switching part is located at the other end of described mobile lens barrel, described mobile lens barrel
May move with respect to described fixed lens barrel.
3. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 it is characterised in that described Optic transmission fiber go out light end with
Picking up of optical fiber image transmission beam overlaps as the perpendicular bisector at end, and what the core diameter of described Optic transmission fiber was more than described optical fiber image transmission beam picks up picture
The diameter of effective imaging region at end.
4. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 it is characterised in that described Optic transmission fiber go out light end with
Picking up as the distance at end of described optical fiber image transmission beam is grade.
5. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 is it is characterised in that single in described optical fiber image transmission beam
A diameter of 13 μm of described monofilament optical fiber, resolution 44LP/mm.
6. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 it is characterised in that described Optic transmission fiber a diameter of
2mm, a diameter of 1mm of described optical fiber image transmission beam.
7. Suspended Sedimentation Concentration monitoring system as claimed in claim 1 is it is characterised in that described probe is open system.
8. a kind of monitoring method using the Suspended Sedimentation Concentration monitoring device as any one of claim 1-7, it is special
Levy and be, comprise the steps：
Described probe is put in silt liquor；
Described control unit sending signal opens described light source and described imaging device, picking up as end by described optical fiber image transmission beam
The some images of continuous acquisition；
Described imaging device sends the described image of collection to described control unit；
Described control unit processes described image, obtains, shows the average gray accumulation mean of described image in real time；
By the relational expression of sediment concentration value and the average gray accumulation mean of image, calculate different described average gray and tire out
The corresponding sediment concentration value of long-pending meansigma methodss.
9. monitoring method as claimed in claim 8 is it is characterised in that the average gray of described sediment concentration value and described image
The relational expression of accumulation mean obtains by the following method：
It is respectively configured the silt liquor of variable concentrations；
The fixing device of described probe is put in described silt liquor；
Described control unit sending signal opens described light source and described imaging device, multiple images of continuous acquisition；
Described imaging device sends the described image of collection to described control unit；
Described control unit processes described image, obtains in real time, shows and store the average gray value of every described image, accumulation
Meansigma methodss and gray scale spectrum information, obtain the average gray accumulation mean of multiple described images under different sediment concentrations；
Obtain the relational expression of sediment concentration value and the average gray accumulation mean of described image by matching.
10. monitoring method as claimed in claim 8 it is characterised in that putting into the step in silt liquor by described probe
Before, also include the step that described Suspended Sedimentation Concentration monitoring device is demarcated, scaling method is as follows：
The fixing device of described probe is put in clear water；
Described control unit sending signal opens described light source and described imaging device, adjusts imaging device and makes imaging device clear
Clear imaging, adjusts light source intensity simultaneously, prevents image from supersaturation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744281.0A CN106404623B (en) | 2016-08-29 | 2016-08-29 | Suspended Sedimentation Concentration monitors system and monitoring method |
| PCT/CN2017/087169 WO2018040649A1 (en) | 2016-08-29 | 2017-06-05 | Suspended sand concentration monitoring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744281.0A CN106404623B (en) | 2016-08-29 | 2016-08-29 | Suspended Sedimentation Concentration monitors system and monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404623A true CN106404623A (en) | 2017-02-15 |
| CN106404623B CN106404623B (en) | 2019-04-05 |
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| CN107631968A (en) * | 2017-09-13 | 2018-01-26 | 南开大学 | Multichannel suspended sediment concentration synchronous monitoring system and monitoring method |
| WO2018040649A1 (en) * | 2016-08-29 | 2018-03-08 | 南开大学 | Suspended sand concentration monitoring system and method |
| CN107894381A (en) * | 2017-12-29 | 2018-04-10 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of southern river |
| CN108152179A (en) * | 2017-12-22 | 2018-06-12 | 华东师范大学 | A kind of Multifunctional suspension sand concentration calibration system |
| CN108613905A (en) * | 2018-05-14 | 2018-10-02 | 西安新汇泽测控技术有限公司 | A kind of water body recovery technology concentration real time on-line monitoring sensor and monitoring method |
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| WO2018040649A1 (en) * | 2016-08-29 | 2018-03-08 | 南开大学 | Suspended sand concentration monitoring system and method |
| CN107631968A (en) * | 2017-09-13 | 2018-01-26 | 南开大学 | Multichannel suspended sediment concentration synchronous monitoring system and monitoring method |
| CN108152179B (en) * | 2017-12-22 | 2023-07-25 | 华东师范大学 | Multifunctional suspended sand concentration calibration system |
| CN108152179A (en) * | 2017-12-22 | 2018-06-12 | 华东师范大学 | A kind of Multifunctional suspension sand concentration calibration system |
| CN107894381A (en) * | 2017-12-29 | 2018-04-10 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of southern river |
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| CN108613905A (en) * | 2018-05-14 | 2018-10-02 | 西安新汇泽测控技术有限公司 | A kind of water body recovery technology concentration real time on-line monitoring sensor and monitoring method |
| CN110362710A (en) * | 2019-08-25 | 2019-10-22 | 贵州大学 | Pulp density test macro and method based on image recognition technology |
| CN110506713A (en) * | 2019-08-27 | 2019-11-29 | 西安理工大学 | A kind of visualization zoobenthos acquisition device |
| CN112098289B (en) * | 2020-09-23 | 2021-04-20 | 中国海洋大学 | Device and method for measuring concentration of ocean suspended particulate matters based on digital image processing |
| CN112098289A (en) * | 2020-09-23 | 2020-12-18 | 中国海洋大学 | Device and method for measuring concentration of ocean suspended particulate matters based on digital image processing |
| CN114486651A (en) * | 2022-01-05 | 2022-05-13 | 南通大学 | Device for measuring in-situ bottom mud resuspension rate |
| CN115773970A (en) * | 2022-11-25 | 2023-03-10 | 西安水文水资源勘测中心 | Suspended sediment particle image acquisition system and method |
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Also Published As
| Publication number | Publication date |
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| CN106404623B (en) | 2019-04-05 |
| WO2018040649A1 (en) | 2018-03-08 |
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