CN208443730U - A kind of portable online full spectral water quality monitor structure - Google Patents
A kind of portable online full spectral water quality monitor structure Download PDFInfo
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- CN208443730U CN208443730U CN201820566178.6U CN201820566178U CN208443730U CN 208443730 U CN208443730 U CN 208443730U CN 201820566178 U CN201820566178 U CN 201820566178U CN 208443730 U CN208443730 U CN 208443730U
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Abstract
The utility model discloses a kind of portable online full spectral water quality monitor structure, titer sample input terminal is connect with titer sample transfer tube, and titer sample transfer tube is connect with titer sample storage chamber；Prepare liquid sample input terminal is connected with prepare liquid sample transfer tube, and prepare liquid sample transfer tube is connect with prepare liquid sample storage chamber；Xenon flash light source excites under transmission of the full spectrum after full spectrum light paths separated time lens, it is focused by transmitted spectrum way selectors and transmitted spectrum condenser lens, photoreception of spectrum element is projected by spectrum reflective mirror again, is stored in data storage elements ROM after identifying digitlization spectral information via photoreception of spectrum element；It is complicated to solve prior art monitoring process, precision can not also be unified, the problems such as not can be carried out real-time multi-parameter while measuring and visualizing.
Description
Technical field
The invention belongs to water quality monitoring technologies, more particularly to a kind of portable online full spectral water quality monitor structure.
Background technique
The water quality monitoring scheme of mainstream, which relies primarily on, at present detects the indices of water, not only need field from
The a large amount of liquid sample sampling work of thing, large labor intensity is time-consuming and laborious, and has very high requirement for the preservation condition of liquid sample,
It not only needs to avoid the pollution of allogene, sunlight is avoided to irradiate, and need to measure sample immediately.And measurement result is past
Toward cannot obtain immediately, and longer minute is needed, and when needing to measure multiple parameters, needed using to a variety of instrument
Device and reagent, and monitoring process is sufficiently complex, precision can not also be unified, and not can be carried out real-time multi-parameter while measurement and visual
Change, however water quality monitoring but be to be related to all trades and professions to develop essential important link.It is convenient, quickly and accurately real
When on-line determination water quality, and to measurement result carry out real-time visual output for related fields development have important meaning
Justice.
Summary of the invention
The technical problem to be solved by the present invention is a kind of portable online full spectral water quality monitor structure is provided, with solution
Certainly monitoring process existing for prior art progress water quality monitoring is sufficiently complex, and precision can not also be unified, and not can be carried out more ginsengs in real time
The problems such as number while measurement and visualization.
The technical scheme is that
A kind of portable online full spectral water quality monitor structure, it includes titer sample input terminal and the input of prepare liquid sample
End, titer sample input terminal are connect with titer sample transfer tube, and titer sample transfer tube is connect with titer sample storage chamber, pulse
Xenon source excites under transmission of the full spectrum after full spectrum light paths separated time lens, by transmitted spectrum way selectors
It focuses with transmitted spectrum condenser lens, then photoreception of spectrum element is projected by spectrum reflective mirror, is identified via photoreception of spectrum element
Data storage elements ROM is stored in after digitlization spectral information；Prepare liquid sample input terminal is connected with prepare liquid sample transfer tube, to be measured
Liquid sample transfer tube is connect with prepare liquid sample storage chamber, and the full spectrum of xenon flash light source excitation passes through full spectrum light paths separated time
Under transmission after lens, after prepare liquid sample spectrum channel and prepare liquid sample storage chamber, through prepare liquid sample spectrum channel, by
Transmitted spectrum way selectors selector channel, then focused by transmitted spectrum condenser lens, spectrum is projected by spectrum reflective mirror
Photosensitive element is stored in data storage elements ROM after identifying digitlization spectral information via photoreception of spectrum element.
Xenon flash light source, full spectrum light paths separated time lens, transmitted spectrum condenser lens, the selection of transmitted spectrum access
Device, spectrum reflective mirror, photoreception of spectrum element, prepare liquid sample storage chamber, prepare liquid sample spectrum channel, titer sample storage chamber are pacified
In lighttight totally-enclosed case.
Full spectrum light source is divided into two beams by full spectrum light paths separated time lens, a branch of to be entered by prepare liquid sample spectrum channel
It is a branch of to enter titer sample storage chamber in prepare liquid sample storage chamber.
Prepare liquid sample input terminal liquid sample with a scale acquires hose connection, the scale side 0m of liquid sample acquisition hose with a scale
To being placed in liquid sample.
The interface of liquid sample acquisition hose with a scale and prepare liquid sample input terminal is installed using spiral Method for Installation, with a scale
It is bigger than prepare liquid sample input terminal outer diameter that liquid sample acquires hose connection outer diameter.
The spectral information and location parameter of prepare liquid sample carry out water quality by display screen interface module projection to display
Real-time visual；The another spectral information of prepare liquid sample and location parameter simultaneously are exported by data transmission interface to computer.
Prepare liquid sample excretion end is connected to prepare liquid sample discharge conduit, is stored in prepare liquid sample and stores indoor prepare liquid sample
Via the conveying of prepare liquid sample excretion delivery pump, by prepare liquid sample excretion end discharge；Titer sample excretion end is connected to titer
Sample discharge conduit is stored in titer sample and stores indoor titer sample via the conveying of titer sample excretion delivery pump, by marking
Quasi- liquid sample excretion end discharge.
Liquid sample filter input terminal piece interface one, liquid sample filter input terminal piece interface two, liquid sample filter input terminal piece interface three
For placing corresponding types filter, filter is non-woven fabrics filter membrane, PP melt-blown filter or resin filter element, liquid sample input terminal mistake
Filter disc interface one is equipped with non-woven fabrics filter membrane.
The invention has the advantages that:
The present invention develops a kind of portable online full spectral water quality monitor structure using Full spectrum techniques, in liquid sample not
Commaterial has the different structures of matter, therefore its absorbent energy of institute is also different, and the spectrum absorbed also has difference
Characteristic spectrum, therefore by distinguish by liquid sample transmission after different spectral signatures determine the different material type in liquid sample, lead to
Cross the concrete content that corresponding wavelength region spectrum power comparing calculation different material is carried out with the spectral signature of titer sample.This hair
It is bright to be realized by carrying standard spectral curves with system or user's autogamy titer sample curve of spectrum originally compares calculating
Real-time online multi-parameter water-quality monitoring in field not only can monitor different depth in the case where record measurement point longitude and latitude in real time
The multiple parameters of liquid sample, and real-time visual can be carried out to monitoring result, this invention removes due to sampling bring labor
Dynamic cost reduces water quality monitoring cost, while many kinds of parameters of monitoring calculation water quality and real-time visual monitoring result, significantly
Detection time is reduced, the various disadvantages of existing water quality monitoring scheme are efficiently solved；It solves the prior art and carries out water quality prison
Monitoring process existing for surveying is sufficiently complex, and precision can not also be unified, and not can be carried out real-time multi-parameter while measurement and visualization etc.
Problem.
Detailed description of the invention:
Fig. 1 is front schematic view of the present invention；
Fig. 2 is present invention liquid sample acquisition hose fitting structural schematic diagram with a scale；
Fig. 3 is internal element composition and distribution schematic diagram of the present invention；
Fig. 4 charging head accessory schematic diagram of the present invention.
Specific embodiment
In attached drawing: 100- tool housing；101- titer sample input terminal；102- prepare liquid sample input terminal；103- prepare liquid
Sample drains end；104- titer sample drains end；200- instrument display screen；300- instrument switch machine key；301- instrument selects upwards
Select key；302- instrument selection key to the right；303- instrument determines selection key；The downward selection key of 304- instrument；305- instrument
Selection key is cancelled or deleted to device；306- instrument selection key to the left；307- instrument menu key；400- liquid sample input terminal mistake
Filter disc interface one；401- liquid sample filter input terminal piece interface two；402- liquid sample filter input terminal piece interface three；500- titer
Sample transfer tube；501- prepare liquid sample discharge conduit；502- prepare liquid sample transfer tube；503- titer sample discharge conduit；504- mark
Quasi- liquid sample delivery pump；505- prepare liquid sample delivery pump；506- prepare liquid sample drains delivery pump；The excretion conveying of 507- titer sample
Pump；600- main equipment board；601- display screen interface module；602-GPS module；603- data storage elements ROM；604- centre
Manage device CPU；605- random access memory ram；606- liquid sample conveys pump controller；607- keyboard mainboard management module；608-
Power management module；Conducting wire between 609- mainboard；610- lithium battery；611- keyboard mainboard；612- keyboard mainboard keystroke interface；
613- charging and data transmission interface；The opaque totally-enclosed case of 700-；701- xenon flash light source；702- full spectrum light paths
Separated time lens；703- transmitted spectrum condenser lens；704- transmitted spectrum way selectors；705- spectrum reflective mirror；706- spectrum
Photosensitive element；707- prepare liquid sample storage chamber；708- prepare liquid sample spectrum channel；709- titer sample spectrum access (titer
Sample storage chamber)；800- liquid sample with a scale acquires hose；801- liquid sample with a scale acquires hose connection gasket；900- charger.
The present embodiment provides a kind of portable online full spectral water quality monitor structures, including operable work circle of user
Face, the working interface are mainly made of the positive instrument display screen 200 of instrument and the 200 multiple function buttons in lower section of instrument display screen
300-307, user are operated by the content that function button 300-307 shows instrument display screen 200.Furthermore operating member
It further include the prepare liquid sample input port 102 and titer sample input port 101 of instrument tip, prepare liquid sample input port
102 are connected with liquid sample with a scale acquisition hose 800, and liquid sample acquisition hose 800 is placed in prepare liquid sample, and hose 0m scale direction is set
In liquid sample, scale is used to react the depth that water pipe immerses liquid sample, that is, monitors the water quality parameter situation that water body corresponds to depth.
In use, the liquid sample connected acquisition hose 800 is placed in prepare liquid sample, selected by function button 300-307
Corresponding monitoring pattern in instrument steerable system is selected, the monitoring deep calibration of hose and liquid sample contact surface is read, selects in systems
The corresponding depth parameter of input is selected, and starts the sampling of prepare liquid sample, the pump controller 606 of liquid sample conveying at this time activates prepare liquid sample
Delivery pump 505 carries out the sampling operation of prepare liquid sample, after prepare liquid sample storage chamber 707 is filled up by liquid sample completely, sampling operation
Terminating, prepare liquid sample delivery pump 505 stops working, and instrument activates GPS module, and it records the longitude and latitude parameter of monitoring point and records,
Start to monitor water quality parameter, instrument sensitizing pulse xenon source passes through full light in the full spectrum excited by xenon flash light source 701
Under transmission after composing path channels separated time lens 702, after prepare liquid sample spectrum channel 708 and prepare liquid sample storage chamber 707,
Through prepare liquid sample spectrum channel 708, by 704 selector channel of transmitted spectrum way selectors, then by transmitted spectrum condenser lens
703 focus, and project photoreception of spectrum element 706 by spectrum reflective mirror 705, identify and digitize via photoreception of spectrum element 706
Data storage elements ROM603 is stored in after spectral information, via central processor CPU 604 and random access memory ram 605
Analysis and titer sample spectral signature difference are calculated, the water quality parameter situation of prepare liquid sample is calculated, instrument passes through display screen
Monitoring data are subjected to real-time visual.
The spectral wavelength ranges that the xenon flash light source 701 of the instrument can issue be 185~2000nm cover it is infrared,
Visible light, ultraviolet full spectral band range.
Data storage elements ROM603, central processor CPU 604, random access memory ram 605, the liquid sample of instrument are defeated
Send pump controller 606, keyboard mainboard management module 607, power management module 608, GPS module 602, display screen interface module
601 are welded in main equipment board 600, and instrument electric elements are powered by lithium battery 610, and lithium battery 610 is passed through by charger 900
It is charged by charging and data transmission interface 613.
For Instrument measuring different depth liquid sample water quality parameter, realize as follows: prepare liquid sample input terminal
102 are connected with liquid sample with a scale acquisition hose 800, and liquid sample acquisition hose is placed in prepare liquid sample, and hose 0m scale direction is placed in
In liquid sample, scale is used to react the depth that water pipe immerses liquid sample, that is, monitors the water quality parameter situation that water body corresponds to depth, head-up
Scale at liquid sample acquisition hose 800 and liquid sample interface surfaces with a scale, as actual measurement liquid sample depth water quality parameter.
For the mounting means of liquid sample with a scale acquisition hose 800 are as follows: liquid sample acquisition hose 800 and prepare liquid sample with a scale
Input terminal 102 is installed using spiral Method for Installation, is being aligned liquid sample acquisition hose 800 and prepare liquid sample input terminal with a scale
After 102, by rotating, liquid sample with a scale acquires hose 800 or instrument carries out abutting joint, liquid sample acquisition hose with a scale
800 interface outer diameters are more slightly larger than prepare liquid sample 102 outer diameters of input terminal, have liquid sample acquisition hose connection gasket with a scale in contact jaw
801 to prevent liquid sample from leaking.
Further, the prepare liquid sample input port 102 is placed with corresponding types filter, and filter includes nonwoven
Cloth filter membrane, PP melt-blown filter, resin filter element, user of service selectively select filter for the different parameters measurement of water quality
Number amount and type, wherein no matter measure any type water quality parameter, filter input terminal piece interface 1 must be provided with non-woven fabrics
Filter membrane blocks instrument internal pipeline to prevent solid impurity.
Further, the titer sample input terminal 101 is optional operation end member, and it is measured that instrument internal is stored with survey
The corresponding curve of spectrum of multi--parameter standard liquid sample then needs voluntarily to match if you need to be measured the other parameters outside the standard spectrum
New titer sample is set, its design parameter and the corresponding full curve of spectrum are measured.
For the titer sample voluntarily configured, scheme is specifically measured are as follows: titer sample input terminal 101 and titer sample pass
Defeated pipe 500 is connected, and is delivered to titer sample by being conveyed the titer sample delivery pump 504 under pump controller 606 controls by liquid sample
In spectrum access (titer sample storage chamber) 709, lead in the full spectrum excited by xenon flash light source 701 by full spectrum light road
Under transmission after road separated time lens 702, controls by transmitted spectrum way selectors 704 and gathered by transmitted spectrum condenser lens 703
Coke, then photoreception of spectrum element 706 is projected by spectrum reflective mirror 705, digitlization spectrum letter is identified via photoreception of spectrum element 706
It is stored in data storage elements ROM603 after breath, is calculated via central processor CPU 604 and random access memory ram 605
New parameter model, which is established, after analysis spectral information and measurement titer sample parameters relationship is stored in data storage elements ROM603
To used in subsequent measurements liquid sample parameter.
The transmitted spectrum way selectors 704 of instrument control the projection spectrum source of output according to user's selection, if root
Titer sample data are carried according to instrument and carry out water quality parameter measurement, then the selection of transmitted spectrum way selectors 704 projection is by be measured
The spectrum that liquid sample spectrum channel 708 exports, if user needs voluntarily to configure measurement titer sample parameter, the selection of transmitted spectrum access
The spectrum that the selection projection of device 704 is exported by titer sample spectrum access 709 selects the spectrum penetrated to focus via transmitted spectrum saturating
The focusing of mirror 703 projects spectrum reflective mirror 705 and is reflected into photoreception of spectrum element 706.
For the processing mode of waste liquid after monitoring are as follows: prepare liquid sample excretion end 103 is connected to prepare liquid sample discharge conduit
501, the prepare liquid sample waste liquid being stored in prepare liquid sample storage chamber 707 drains the conveying of delivery pump 506 via prepare liquid sample,
It is discharged by prepare liquid sample excretion end 103；Titer sample excretion end 104 is connected to titer sample discharge conduit 503, is stored in standard
Titer sample waste liquid in liquid sample storage chamber 709 drains end by titer sample via the conveying of titer sample excretion delivery pump 507
104 discharges.
The parametric measurement of standard of instruments liquid sample is carried out using multistage measuring method, is provided with more parts of different ginsengs using orthogonal experiment
Then number titer sample carries out withdrawing spectral information to it, then its corresponding spectral information and distilled water spectral information is carried out
Comparison obtains spectrum and the reference of water quality parameter standard by analysis different-waveband spectral signature and each parameters relationship of water quality.It is based on
This standard is referring to the determination for carrying out water quality parameter to prepare liquid sample again.
The algorithm of model use precision in current machine learning algorithm it is higher and with high stability and reliability with
Machine forest algorithm.The building of algorithm is as follows:
1. with independent identically distributed random vector ΘtForm tree structure classifier { h (X, Θt), t=1 ..., p }, from mark
The quasi- a certain special parameter of liquid sample and corresponding full spectral band characteristic are concentrated to have at random extract quantitative training sample with putting back to
This, carries out decision tree modeling for each sample set, then combines the prediction of more decision trees, by calculating t decision tree { h
(X,Θt) prediction mean value obtain final regression forecasting value.
2. in independent variable X (the complete each wave band characteristic value of spectrum) and dependent variable Y (a certain specific water quality parameter of titer sample)
In the set of composition, the training set (Xi, Yi) that random sampling goes out is mutually indepedent.The monitoring result of random forests algorithm entirety is used back
The extensive error mean square value of predicted vector h (X) is returned to describe.Its is defined as:
EX,Y(Y-h(X))2
Wherein, Y (a certain specific water quality parameter of titer sample) is that training sample set X (the complete each wave band characteristic value of spectrum) is right
The actual value answered, h (X) indicate model to the predicted value of sample set X (the complete each wave band characteristic value of spectrum).EX,Y(·)2Operator table
Show:
3. for sample set X to be predicted, (accordingly specific water quality parameter is corresponding for prepare liquid sample after constructing forest
The each wave band characteristic value of full spectrum), the final calculated result (monitor value) of corresponding sample is calculated with following formula:
Wherein, YkIndicating random forests algorithm, (a certain certain depth prepare liquid sample accordingly join by specific water quality to k-th of liquid sample
Number) calculated result (monitor value), argave () expression take mean value, hi() indicates the calculating knot of i-th decision regression tree
Fruit, xk|(fj) indicate for k-th input sample (a certain certain depth prepare liquid sample accordingly full spectral signature parameter), i-th
Decision tree is based on xkEach wave band characteristic parameter of full spectrum, utilizes function fjThe prepare liquid sample being calculated specific water accordingly
Matter parameter.
4. for the precision of assessment instrument monitoring result, our model uses a kind of reliable Accuracy extimate side first
Method (has neither part nor lot in the titer sample of model training to data outside bag that is, using sample data outside the bag for having neither part nor lot in decision forest building
Data) error mean square value (MSEOOB) calculated:
Wherein yiIndicate in the outer data (the titer sample data for having neither part nor lot in model training) of bag a certain of i-th of titer sample
The actual value of specific water quality parameter,Indicate that model is directed to the predicted value of the specific water quality parameter. MSEOOBSmaller expression mould
Type precision is higher.Secondly, model additionally uses the evaluation that another parameter carries out precision, i.e. explained variance percentage (PVE),
The parameter list representation model can significantly explain that the ability of sample data, the value indicate that the effect of model is better closer to 100%, PVE
It is calculated by following formula:
WhereinIndicate model for outer data (the titer sample data for having neither part nor lot in model training) a certain specific water quality of bag
The variance for the prediction result that parameter is predicted.
Above-mentioned model has been based on titer sample and train and be stored in system, and user of service does not need generally certainly
Row measures titer sample and directly measures prepare liquid sample water quality situation.
Claims (8)
1. a kind of portable online full spectral water quality monitor structure, it includes titer sample input terminal (101) and prepare liquid sample
Input terminal (102), it is characterised in that: titer sample input terminal (101) is connect with titer sample transfer tube (500), titer sample
Transfer tube (500) is connect with titer sample storage chamber (709), and xenon flash light source (701) excites full spectrum to pass through full spectrum light
Under transmission after paths separated time lens (702), by transmitted spectrum way selectors (704) and transmitted spectrum condenser lens
(703) it focuses, then photoreception of spectrum element (706) is projected by spectrum reflective mirror (705), know via photoreception of spectrum element (706)
Data storage elements ROM (603) Shuo Zihua not be stored in after spectral information；Prepare liquid sample input terminal (102) and prepare liquid sample pass
Defeated pipe (502) is connected, and prepare liquid sample transfer tube (502) is connect with prepare liquid sample storage chamber (707), xenon flash light source (701)
Under transmission of the full spectrum of excitation after full spectrum light paths separated time lens (702), by prepare liquid sample spectrum channel
(708) and after prepare liquid sample storage chamber (707), through prepare liquid sample spectrum channel (708), by transmitted spectrum way selectors
(704) selector channel, then focused by transmitted spectrum condenser lens (703), photoreception of spectrum is projected by spectrum reflective mirror (705)
Element (706) is stored in data storage elements ROM after identifying digitlization spectral information via photoreception of spectrum element (706)
(603)。
2. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: pulsed xenon
Lamp source (701), full spectrum light paths separated time lens (702), transmitted spectrum condenser lens (703), the choosing of transmitted spectrum access
Select device (704), spectrum reflective mirror (705), photoreception of spectrum element (706), prepare liquid sample storage chamber (707), prepare liquid sample spectrum
Channel (708), titer sample storage chamber (709) are installed in lighttight totally-enclosed case (700).
3. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: full spectrum
Full spectrum light source is divided into two beams by path channels separated time lens (702), a branch of to be measured by prepare liquid sample spectrum channel (708) entrance
It is a branch of to enter titer sample storage chamber (709) in liquid sample storage chamber (707).
4. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: prepare liquid
Sample input terminal (102) liquid sample with a scale acquires hose (800) connection, the scale side 0m of liquid sample acquisition hose (800) with a scale
To being placed in liquid sample.
5. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: with a scale
Liquid sample acquires hose (800) and the interface of prepare liquid sample input terminal (102) is installed using spiral Method for Installation, liquid sample with a scale
It is bigger than prepare liquid sample input terminal (102) outer diameter to acquire hose (800) interface outer diameter.
6. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: prepare liquid
The spectral information and location parameter of sample carry out the real-time of water quality by display screen interface module (601) projection to display (200)
Visualization；The another spectral information of prepare liquid sample simultaneously and location parameter are exported by data transmission interface (613) to computer.
7. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: prepare liquid
Sample excretion end (103) is connected to prepare liquid sample discharge conduit (501), the prepare liquid being stored in prepare liquid sample storage chamber (707)
Sample is discharged via the conveying of prepare liquid sample excretion delivery pump (506) by prepare liquid sample excretion end (103)；Titer sample drains end
(104) it is connected to titer sample discharge conduit (503), is stored in the titer sample in titer sample storage chamber (709) via mark
The conveying of quasi- liquid sample excretion delivery pump (507), by titer sample excretion end (104) discharge.
8. the portable online full spectral water quality monitor structure of one kind according to claim 1, it is characterised in that: it is also wrapped
Include: liquid sample filter input terminal piece interface one (400), liquid sample filter input terminal piece interface two (401), liquid sample filter input terminal piece connect
Three (402) of mouth are non-woven fabrics filter membrane, PP melt-blown filter or resin filter element, liquid for placing corresponding types filter, filter
Sample filter input terminal piece interface one (400) is equipped with non-woven fabrics filter membrane.
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