CN106896192B - A kind of river enters extra large Nutrients Fluxes measurement system - Google Patents
A kind of river enters extra large Nutrients Fluxes measurement system Download PDFInfo
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- CN106896192B CN106896192B CN201710183848.6A CN201710183848A CN106896192B CN 106896192 B CN106896192 B CN 106896192B CN 201710183848 A CN201710183848 A CN 201710183848A CN 106896192 B CN106896192 B CN 106896192B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0426—Programming the control sequence
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/23—Pc programming
- G05B2219/23258—GUI graphical user interface, icon, function bloc editor, labview
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/10—Noise analysis or noise optimisation
Abstract
A kind of river enters extra large Nutrients Fluxes measurement system, is related to flux on-line analysis system.Including control system, cross section of river area estimation module, high-frequency acoustic measurement of rate of flow module and nutritive salt on-line determination module, the control system controls cross section of river area estimation module, high-frequency acoustic measurement of rate of flow module and nutritive salt on-line determination module, data acquire and data processing；The cross section of river area estimation module is equipped with echo scanner, digital sensor and water-level gauge, the high-frequency acoustic measurement of rate of flow module is equipped with GPS, acoustic transducer, data collecting card and hydrophone, and the nutritive salt on-line determination module is equipped with LED driving circuit, light emitting diode, valve pump control circuit, three-way magnetic valve, sample introduction peristaltic pump, reagent peristaltic pump, data acquisition circuit, photoelectric detector, pure water bottle, sample bottle, reagent bottle, tee tube, reaction coil pipe, flow cell and waste collection bottle.
Description
Technical field
The present invention relates to flux on-line analysis systems, enter extra large Nutrients Fluxes more particularly, to a kind of river and measure system.
Background technique
Since basin population increases, livestock culture and chemical fertilizer application substantial increase, dam are built and increase river hydraulic retention
Time, climate change and land use change influence the reasons such as basin weathering Erosion, and many rivers have found battalion in global range
Feeding flux salt dramatically increases.The change of this river condition of nutrient salt causes very big impact to the ecosystem in coastal waters, so that
The aggravation of coastal waters eutrophication, frequent occurrence, the environmental problems such as seasonal bottom anoxic become increasingly conspicuous.China's coastal areas pollution is
It gets worse, overproof water quality phenomenon is universal, especially inorganic nitrogen, phosphorus, the eutrophication and algal tufa outstanding problem of estuary bay, directly
It connects structure, function and the service for influencing aquatic ecosystem, and then influences every marine resources and utilize to hold with economic industry
Supervention exhibition.There is an a large amount of bay in China, and the on-line monitoring that river enters extra large Nutrients Fluxes is basic work that land-sea is planned as a whole, is
Pollution from land-based sources is cut down, and the formulation of Ecological Compensation Policy provides important science data and foundation, and promotes marine ecology civilization
The important content of construction.To master river boundary at the sea flour nutrition flux salt, Regular of Water Quality Variation and ecological succession, the hydrology and water quality
High-frequency synchronous monitoring be crucial, and the technical bottleneck in marine eco-environment protection field in the world at present.National Bureau of Oceanography
" national marine eco-environment monitoring task in 2014 " emphasizes that Yao Jia great enters extra large blowdown in terms of marine environment supervises monitoring
Mouth is attempted to carry out and be monitored on-line with extra large rivers generaI investigation and monitoring frequency, emphasis sewage draining exit is entered, and monitoring result is included in communication.So
And at present in terms of monitoring, it is independent mutually with water quality monitoring system that there are the hydrology, and monitor spots are different, and monitoring device lacks
It is weary integrated, the problems such as operating cost is high, it is logical to be unable to satisfy the hydrology, water quality Simultaneous Monitoring and nutritive salt in marine eco-environment protection
The basic demand of amount dynamic monitoring.Meanwhile nutritive salt monitoring frequency is lower at present, for extreme days such as typhoon, the heavy rains of burst
Gas is difficult to the variation in capture-process, is affected to Nutrients Fluxes assessment.Therefore the national marine that links closely protects great demand,
The joint for reinforcing hydrologic parameter (flow velocity, flow) and water quality parameter (nitrate nitrogen, nitrite nitrogen, ammonium nitrogen, phosphate etc.) monitors skill on-line
The exploitation of art establishes a set of river and enters extra large Nutrients Fluxes measurement system, especially with flow control nutritive salt measurement frequency
System is of crucial importance.
Summary of the invention
The object of the present invention is to provide that can measure frequency by flow control nutritive salt, entire analytic process is without artificial
Intervene, a kind of river that can be used for the on-line analysis that river enters extra large Nutrients Fluxes enters extra large Nutrients Fluxes measurement system.
The present invention includes control system, cross section of river area estimation module, high-frequency acoustic measurement of rate of flow module and nutritive salt
On-line determination module, the control system is to cross section of river area estimation module, high-frequency acoustic measurement of rate of flow module and nutritive salt
On-line determination module is controlled, data acquire and data processing；The cross section of river area estimation module is equipped with reflection sounding
Device, digital sensor and water-level gauge, the high-frequency acoustic measurement of rate of flow module be equipped with GPS, acoustic transducer, data collecting card and
Hydrophone, the nutritive salt on-line determination module be equipped with LED driving circuit, light emitting diode, valve pump control circuit,
Three-way magnetic valve, sample introduction peristaltic pump, reagent peristaltic pump, data acquisition circuit, photoelectric detector, pure water bottle, sample bottle, reagent
Bottle, tee tube, reaction coil pipe, flow cell and waste collection bottle.
The echo scanner is connected with digital sensor, is investigated using boat is walked substrate and the depth of water, obtains river
Topographic map；Real-time monitoring is carried out to cross section of river water level by water-level gauge, analyzes to obtain cross section of river using Control system simulation
Real-time area and the function S that changes over time of cross-sectional area；
The output end of the GPS connects data collecting card, and the output end of data collecting card connects acoustic transducer；Hydrophone
Output end connect data collecting card；Underwater acoustic transducer and hydrophone are placed under water in observation process, are respectively used to signal
Transmitting and reception, the transmitting signal that the signal emitted is generated by control system is delivered to data collecting card, by underwater acoustic transducer
Probe issue；The probe of hydrophone, which receives, to be delivered to control system by data collecting card after signal and handles signal
And it stores；The linear distance L of underwater acoustic transducer and hydrophone in observation, the angle of straight line and flow velocity direction are measured by GPS
θ and sound ray positive ultrasonic transmission time T during reciprocal transmission+With negative sense transmission time T-；
Two sample introduction entrances of three-way magnetic valve are separately connected the outlet of pure water bottle and sample bottle, public among solenoid valve
Channel is connect with the entrance of sample introduction peristaltic pump；The outlet of reagent bottle is connect with the entrance of reagent peristaltic pump；The both ends of tee tube enter
Mouth is separately connected the outlet end of sample introduction peristaltic pump and the outlet end of reagent peristaltic pump, the entrance for exporting with reacting coil pipe of tee tube
Connection；The entrance of the outlet and flow cell of reacting coil pipe connects；The outlet of flow cell is connected to waste collection bottle.Control system is logical
It crosses and LED driving circuit, valve pump control circuit, data acquisition circuit is controlled, and then control light emitting diode light
Switching, the revolving speed steering of sample introduction peristaltic pump and reagent peristaltic pump and the tune of rotation duration of strong variation, three-way magnetic valve valve position
Section substitutes into work to be further processed to obtain the light absorption value of cross section of river sample using photoelectric detector signal value collected
Nutrient concentrations are calculated automatically from as curve, and obtain the function C that nutritive salt changes over time.
Two sample introduction entrances of three-way magnetic valve are separately connected sample bottle and pure water in the nutritive salt on-line determination module
The outlet of bottle, the public passage among solenoid valve are connect with the entrance of sample introduction peristaltic pump；The outlet of reagent bottle and reagent peristaltic pump
Entrance connection；Two end entrances of tee tube are separately connected the outlet end of sample introduction peristaltic pump and the outlet end of reagent peristaltic pump, and three
The outlet of siphunculus is connect with the entrance of reaction coil pipe；The entrance of the outlet and flow cell of reacting coil pipe connects；The outlet of flow cell
It is connected to waste collection bottle.Control system by LED driving circuit, valve pump control circuit, data acquisition circuit into
Row control, and then the variation of light emitting diode light intensity is controlled, the switching of three-way magnetic valve valve position, sample introduction peristaltic pump and reagent are wriggled
Revolution speed, steering and the adjusting for rotating duration, to be further processed to obtain river using photoelectric detector signal value collected
The nutrient concentrations of flow section.
The cross section of river area that Nutrients Fluxes in certain time period τ are obtained by cross section of river area estimation module with
The function V and nutritive salt that the flow rate of water flow that the function S of time change, high-frequency acoustic measurement of rate of flow module obtain changes over time exist
The function C that the nutrient concentrations that line measurement module obtains change over time substitutes into formula (1) and is calculated.Cross section of river is real-time
Flow q substitutes into formula (2) by real-time cross-sectional area s and real-time flow rate υ and obtains.
Q=s υ (2)
The high frequency characteristics of the acoustic flux measurement can be used as the adjustable parameter of the synchronous hydrology and nutritive salt measurement, control number
According to acquisition rate.
The nutritive salt on-line determination frequency is controlled by real-time traffic, i.e. given threshold, when real-time traffic is greater than or equal to
When threshold value, high frequency nutritive salt mode determination is automatically turned on；When real-time traffic is less than threshold value, general nutritive salt measurement mould is opened
Formula.
Seat in the plane uses the user program write based on LabVIEW in the control system, can survey to cross section of river area
Cover half block, high-frequency acoustic measurement of rate of flow module, nutritive salt on-line determination module are carried out while being controlled, and are shared in measurement of rate of flow module
GPS information, trigger three modules simultaneously according to the time message of GPS and pulse signal and synchronize sampling, promotion accuracy.
The nutritive salt parameter includes ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, phosphate, silicate etc., can select one according to demand
Kind or a variety of measure simultaneously.
Present invention incorporates the technologies such as cross section of river area estimation, flow rate of water flow the real time measure and nutritive salt on-line determination.
Compared with prior art, the present invention has the characteristics that as follows:
1) integration of equipments: using the Simultaneous Determination of a system integration flow and nutritive salt parameter, guarantee sampling erect-position
Consistency, so that the measurement result of the hydrology and water quality parameter is can be used for the calculating of flux；
2) equipment automatization: cross section of river area, flow rate of water flow and nutrient concentrations can all automatically determine, whole process without
Human intervention is needed, the degree of automation is higher；
3) non-invasive measures: by the way of non-invasive measurement, instrument itself does not need to reach observation bit the present invention
It sets and measurement can be completed, belong to environmentally friendly, artificial destruction not will cause to existing environment,
4) nutritive salt measurement frequency can automatically adjust: by flow control nutritive salt mode determination, for burst typhoon,
The extreme weathers such as heavy rain automatically turn on high frequency nutritive salt mode determination, improve nutritive salt measurement frequency and are sought with capturing in peb process
The quick variation of salinity is supported, Nutrients Fluxes calculated result is more accurate；
5) seat in the plane uses the user program write based on LabVIEW in control system, and simple interface is friendly, easily operated,
It can automatically analyze and Nutrients Fluxes are calculated.
Detailed description of the invention
Fig. 1 is the control circuit composition block diagram of the embodiment of the present invention.
Fig. 2 is the river topography figure of the embodiment of the present invention.
The flow diagram of Fig. 3 control system of the embodiment of the present invention.
Fig. 4 is the flow path schematic diagram of nutritive salt on-line determination module in the present invention.
Specific embodiment
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
It is monitored using Nutrients Fluxes of the present invention to a certain river emptying into the sea section of Jiulongjiang River.
Referring to Fig. 1~4, the embodiment of the present invention includes control systems 1, cross section of river area estimation module, high-frequency acoustic stream
Speed measurement module and nutritive salt on-line determination module, the control system 1 is to cross section of river area estimation module, high-frequency acoustic stream
Speed measurement module and nutritive salt on-line determination module are controlled, data acquire and data processing；The cross section of river area is surveyed
Cover half block be equipped with echo scanner 2, digital sensor 3 and water-level gauge 4, the high-frequency acoustic measurement of rate of flow module be equipped with GPS6,
Acoustic transducer 8, data collecting card 7 and hydrophone 9, the nutritive salt on-line determination module are equipped with LED driving circuit
11, light emitting diode 12, valve pump control circuit 13, three-way magnetic valve 14, sample introduction peristaltic pump 15, reagent peristaltic pump 16, data are adopted
Collector 17, photoelectric detector 18, pure water bottle 20, sample bottle 21, reagent bottle 22, tee tube 23, reaction coil pipe 24, flow cell 25
With waste collection bottle 26.
The echo scanner 2 is connected with digital sensor 3, is investigated using boat is walked substrate and the depth of water, obtains river
Road topographic map；Real-time monitoring is carried out to cross section of river water level by water-level gauge 4, obtains river using 1 sunykatuib analysis of control system
The function S that the real-time area 5 and cross-sectional area of section change over time；
The output end of the GPS 6 connects data collecting card 7, and the output end of data collecting card 7 connects acoustic transducer 8；
The output end of hydrophone 9 connects data collecting card 7；Underwater acoustic transducer 8 and hydrophone 9 are placed under water in observation process, respectively
For the transmitting and reception of signal, the transmitting signal that the signal emitted is generated by control system 1 is delivered to data collecting card 7,
It is issued by the probe of underwater acoustic transducer 8；The probe of hydrophone 9 receives and is delivered to control system by data collecting card 7 after signal
1 pair of signal of uniting is handled and is stored；The linear distance L of underwater acoustic transducer 8 and hydrophone 9 in observation is measured by GPS 6,
The angle theta and sound ray in straight line and flow velocity direction positive ultrasonic transmission time T during reciprocal transmission+With negative sense transmission time
T-；
Two sample introduction entrances of three-way magnetic valve 14 are separately connected the outlet of pure water bottle 20 and sample bottle 21, in solenoid valve 14
Between public passage connect with the entrance of sample introduction peristaltic pump 15；The outlet of reagent bottle 22 is connect with the entrance of reagent peristaltic pump 16；
Two end entrances of tee tube 23 are separately connected the outlet end of sample introduction peristaltic pump 15 and the outlet end of reagent peristaltic pump 16, tee tube 23
Outlet with react coil pipe 24 entrance connect；The outlet of reaction coil pipe 24 is connect with the entrance of flow cell 25；Flow cell 25
Outlet is connected to waste collection bottle 26.Control system 1 passes through to LED driving circuit 11, valve pump control circuit 13, number
Controlled according to Acquisition Circuit 17, so control the variation of 12 light intensity of light emitting diode, the switching of 14 valve position of three-way magnetic valve, into
The revolving speed of sample peristaltic pump 15 and reagent peristaltic pump 16 turns to and the adjusting of rotation duration, to be acquired using photoelectric detector 18
Signal value be further processed to obtain the light absorption value of cross section of river sample, substitute into working curve and be calculated automatically from nutritive salt and contain
Amount, and obtain the function C that nutritive salt changes over time.
Two sample introduction entrances of three-way magnetic valve are separately connected sample bottle and pure water in the nutritive salt on-line determination module
The outlet of bottle, the public passage among solenoid valve are connect with the entrance of sample introduction peristaltic pump；The outlet of reagent bottle and reagent peristaltic pump
Entrance connection；Two end entrances of tee tube are separately connected the outlet end of sample introduction peristaltic pump and the outlet end of reagent peristaltic pump, and three
The outlet of siphunculus is connect with the entrance of reaction coil pipe；The entrance of the outlet and flow cell of reacting coil pipe connects；The outlet of flow cell
It is connected to waste collection bottle.Control system by LED driving circuit, valve pump control circuit, data acquisition circuit into
Row control, and then the variation of light emitting diode light intensity is controlled, the switching of three-way magnetic valve valve position, sample introduction peristaltic pump and reagent are wriggled
Revolution speed, steering and the adjusting for rotating duration, to be further processed to obtain river using photoelectric detector signal value collected
The nutrient concentrations of flow section.
The cross section of river area that Nutrients Fluxes in certain time period τ are obtained by cross section of river area estimation module with
The function V and nutritive salt that the flow rate of water flow that the function S of time change, high-frequency acoustic measurement of rate of flow module obtain changes over time exist
The function C that the nutrient concentrations that line measurement module obtains change over time substitutes into formula (1) and is calculated.Cross section of river is real-time
Flow q substitutes into formula (2) by real-time cross-sectional area s and real-time flow rate υ and obtains.
Q=s υ (2)
The high frequency characteristics of the acoustic flux measurement can be used as the adjustable parameter of the synchronous hydrology and nutritive salt measurement, control number
According to acquisition rate.
The nutritive salt on-line determination frequency is controlled by real-time traffic, i.e. given threshold, when real-time traffic is greater than or equal to
When threshold value, high frequency nutritive salt mode determination is automatically turned on；When real-time traffic is less than threshold value, general nutritive salt measurement mould is opened
Formula.
Seat in the plane uses the user program write based on LabVIEW in the control system, can survey to cross section of river area
Cover half block, high-frequency acoustic measurement of rate of flow module, nutritive salt on-line determination module are carried out while being controlled, and are shared in measurement of rate of flow module
GPS information, trigger three modules simultaneously according to the time message of GPS and pulse signal and synchronize sampling, promotion accuracy.
The nutritive salt parameter includes ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, phosphate, silicate etc., can select one according to demand
Kind or a variety of measure simultaneously.
Present invention incorporates the technologies such as cross section of river area estimation, flow rate of water flow the real time measure and nutritive salt on-line determination.
Cross section of river area estimation module passes through echo scanner 2 first and is connected with digital sensor 3, using walk boat the bottom of to
Matter and the depth of water are investigated, and obtain river topography figure, as shown in Figure 2；Cross section of river water level is carried out by water-level gauge 4 again real-time
Monitoring, to obtain the real-time area of cross section of river using 1 sunykatuib analysis of control system and letter that cross-sectional area changes over time
Number S.
The output end of GPS 6 connects data collecting card 7 in high-frequency acoustic measurement of rate of flow module；The output of data collecting card 7
End connection acoustic transducer 8；The output end of hydrophone 9 connects data collecting card 7.By underwater acoustic transducer 8 and water in observation process
Device 9 is listened to be placed in the transmitting and reception for being respectively used to signal under water, remaining part is integrated in the system of pier.Emitted
Signal generated by control system 1, be delivered to data collecting card 7, by underwater acoustic transducer 8 probe issue；The probe of hydrophone 9
It receives and control system 1 is delivered to by data collecting card 7 after signal signal is handled and stored.Acoustics is needed when observation
Energy converter 8 and hydrophone 9 carry out the reception and transmitting of signal simultaneously in a certain distance.Two sets of sending and receiving are measured by GPS 6
Linear distance L of the device in observation, the angle theta and sound ray in straight line and flow velocity direction positive sound during reciprocal transmission
Propagation time is T+With negative sense transmission time T-, bulk sound velocity C0, substituting into flow velocity inversion formula (3) can be obtained water flow real-time flow rate υ
The function V changed over time with flow rate of water flow.
The real-time area of cross section of river and the real-time flow rate υ of water flow, which are substituted into formula (2), can be obtained the reality of cross section of river
Shi Liuliang q.Referring to the flow diagram of Fig. 3 control system, flow threshold is set as 800m3/ s, i.e., as real-time traffic >=800m3/s
When, nutritive salt high frequency mode determination is opened, i.e. frequency is that every 10min is primary；Flow < 800m3When/s, opens nutritive salt and generally survey
Mould-fixed, i.e. frequency are once every hour.
Q=s υ (2)
In formula (2), s indicates the real-time area of cross section of river.
Referring to fig. 4, two sample introduction entrances of three-way magnetic valve 14 are separately connected pure water bottle in nutritive salt on-line determination module
20 and sample bottle 21 outlet, the public passage among solenoid valve 14 connect with the entrance of sample introduction peristaltic pump 15；Reagent bottle 22
Outlet is connect with the entrance of reagent peristaltic pump 16；Two end entrances of tee tube 23 be separately connected the outlet end of sample introduction peristaltic pump 15 with
The outlet of the outlet end of reagent peristaltic pump 16, tee tube 23 is connect with the entrance of reaction coil pipe 24；React coil pipe 24 outlet with
The entrance of flow cell 25 connects；The outlet of flow cell 25 is connected to waste collection bottle 26.The built-in each nutritive salt ginseng of control system 1
Several working curve, by being controlled to LED driving circuit 11, valve pump control circuit 13, data acquisition circuit 17
System, and then the variation of 12 light intensity of light emitting diode is controlled, the switching of 14 valve position of three-way magnetic valve, sample introduction peristaltic pump 15 and reagent are compacted
16 revolving speeds of dynamic pump, steering and the adjusting for rotating duration, to be further processed using the signal value collected of photoelectric detector 18
The light absorption value of cross section of river sample is obtained, working curve is substituted into and is calculated automatically from nutrient concentrations c, and obtain nutritive salt at any time
Between the function C that changes.
The function V and nutrient concentrations that function S that cross section of river area changes over time, flow rate of water flow are changed over time
The function C changed over time, which substitutes into formula (1), can be obtained the Nutrients Fluxes of a certain river emptying into the sea section of Jiulongjiang River.
In Fig. 1, label 10 indicates flow rate of water flow, and 19 indicate nutrient concentrations.
The present invention is by control system to cross section of river area estimation module, high-frequency acoustic measurement of rate of flow module and nutritive salt
On-line determination module carries out master control, and adjusts nutritive salt using flow and measure frequency, for poles such as typhoon, the heavy rains of burst
Weather is held to automatically turn on high frequency nutritive salt mode determination, to capture the quick variation of nutrient concentration in peb process, so that battalion
It is more accurate to support flux salt calculated result.Seat in the plane uses the user program write based on LabVIEW, simple interface in control system
Close friend, easily operated, it is online that integrated system combines cross section of river area estimation, flow rate of water flow the real time measure and nutritive salt
Measurement etc. technologies, entire analytic process be not necessarily to human intervention, high degree of automation, can be used for river enter extra large Nutrients Fluxes
Line analysis.
Claims (3)
1. a kind of river enters extra large Nutrients Fluxes measurement system, it is characterised in that including control system, cross section of river area estimation
Module, high-frequency acoustic measurement of rate of flow module and nutritive salt on-line determination module, the control system is to cross section of river area estimation
Module, high-frequency acoustic measurement of rate of flow module and nutritive salt on-line determination module are controlled, data acquire and data processing；It is described
Cross section of river area estimation module is equipped with echo scanner, digital sensor and water-level gauge, the high-frequency acoustic measurement of rate of flow mould
Block is equipped with GPS, acoustic transducer, data collecting card and hydrophone, and the nutritive salt on-line determination module is equipped with light emitting diode
Driving circuit, light emitting diode, valve pump control circuit, three-way magnetic valve, sample introduction peristaltic pump, reagent peristaltic pump, data acquisition electricity
Road, photoelectric detector, pure water bottle, sample bottle, reagent bottle, tee tube, reaction coil pipe, flow cell and waste collection bottle；
The echo scanner is connected with digital sensor；The output end of the GPS connects data collecting card, data collecting card
Output end connects acoustic transducer；The output end of hydrophone connects data collecting card；By underwater acoustic transducer and water in observation process
Device is listened to be placed in the transmitting and reception for being respectively used to signal under water, the signal emitted is defeated by the transmitting signal that control system generates
It send to data collecting card, is issued by the probe of underwater acoustic transducer；The probe of hydrophone passes through data collecting card after receiving signal
It is delivered to control system signal is handled and stored；It is straight in observation that underwater acoustic transducer and hydrophone are measured by GPS
The angle and sound ray in linear distance, straight line and flow velocity direction positive ultrasonic transmission time and negative sense during reciprocal transmission transmit
Time；
Two sample introduction entrances of three-way magnetic valve are separately connected the outlet of pure water bottle and sample bottle, the public passage among solenoid valve
It is connect with the entrance of sample introduction peristaltic pump；The outlet of reagent bottle is connect with the entrance of reagent peristaltic pump；Two end entrances of tee tube point
Not Lian Jie the outlet end of sample introduction peristaltic pump and the outlet end of reagent peristaltic pump, tee tube outlet with react coil pipe entrance company
It connects；The entrance of the outlet and flow cell of reacting coil pipe connects；The outlet of flow cell is connected to waste collection bottle；Control system passes through
LED driving circuit, valve pump control circuit, data acquisition circuit are controlled, and then control light emitting diode light intensity
Variation, the switching of three-way magnetic valve valve position, sample introduction peristaltic pump and reagent peristaltic pump revolving speed turn to and the adjusting of rotation duration；
Two sample introduction entrances of three-way magnetic valve are separately connected sample bottle and pure water bottle in the nutritive salt on-line determination module
It exports, the public passage among solenoid valve is connect with the entrance of sample introduction peristaltic pump；The outlet of reagent bottle enters with reagent peristaltic pump
Mouth connection；Two end entrances of tee tube are separately connected the outlet end of sample introduction peristaltic pump and the outlet end of reagent peristaltic pump, tee tube
Outlet with react coil pipe entrance connect；The entrance of the outlet and flow cell of reacting coil pipe connects；The outlet of flow cell connects
To waste collection bottle.
2. a kind of river enters extra large Nutrients Fluxes measurement system as described in claim 1, it is characterised in that in the control system
Seat in the plane uses the user program write based on LabVIEW, can be to cross section of river area estimation module, high-frequency acoustic measurement of rate of flow
Module, nutritive salt on-line determination module are carried out while being controlled, and the GPS information in measurement of rate of flow module are shared, according to the time of GPS
Message and pulse signal trigger three modules simultaneously and synchronize sampling.
3. a kind of river enters extra large Nutrients Fluxes measurement system as described in claim 1, it is characterised in that the ginseng of the nutritive salt
Number includes ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, phosphate, silicate.
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| CN201710183848.6A CN106896192B (en) | 2017-03-24 | 2017-03-24 | A kind of river enters extra large Nutrients Fluxes measurement system |
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| CN201710183848.6A CN106896192B (en) | 2017-03-24 | 2017-03-24 | A kind of river enters extra large Nutrients Fluxes measurement system |
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| CN106896192B true CN106896192B (en) | 2019-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107422075B (en) * | 2017-07-20 | 2019-08-30 | 中国科学院重庆绿色智能技术研究院 | The construction method of phosphorus nutrition model flux based on alga cells energetic supersession |
| CN109164730A (en) * | 2018-08-18 | 2019-01-08 | 中国海洋大学 | A kind of multrirange seawater original position nutritive salt sensory-control system and control method |
| CN109297917A (en) * | 2018-11-27 | 2019-02-01 | 浙江微兰环境科技有限公司 | It is a kind of using double peristaltic pump systems as the micro-fluidic NH 3 flow path system of core |
| CN110009213B (en) * | 2019-03-28 | 2021-10-22 | 交通运输部水运科学研究所 | Method for tracking, monitoring and evaluating ecological influence of channel engineering based on long-time sequence satellite remote sensing data |
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