CN104574911A - Shipborne online automatic ocean water quality monitoring system - Google Patents
Shipborne online automatic ocean water quality monitoring system Download PDFInfo
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- CN104574911A CN104574911A CN201510053361.7A CN201510053361A CN104574911A CN 104574911 A CN104574911 A CN 104574911A CN 201510053361 A CN201510053361 A CN 201510053361A CN 104574911 A CN104574911 A CN 104574911A
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Abstract
The invention relates to a shipborne online automatic ocean water quality monitoring system. The shipborne online automatic ocean water quality monitoring system comprises a shoreside data center and a field monitoring system, wherein the field monitoring system is arranged on a ship, ocean water quality status data measured by the field monitoring system is transmitted to the shoreside data center by a public wireless network, and the shoreside data center is used for storing and sharing the ocean water quality status data. The quality of ocean water in different ocean areas can be monitored in real time, monitoring data and locating information can be timely transmitted to the shoreside data center, and automatic water sample extraction, pipeline system cleaning, water sample collection and storage and the like can be realized; the shipborne online automatic ocean water quality monitoring system has the characteristics of high automation degree, rechecking ability of data quality, low operating cost and unattended operation, the quality of the ocean water in different ocean areas can be monitored in real time, the monitoring and early warning ability for the marine ecological environment is improved and a high-efficiency technical means is provided for the marine ecological environment protection.
Description
Technical field
The present invention relates to seawater quality monitoring field, be particularly useful for boat-carrying unmanned on-line automatic seawater quality monitoring field.
Background technology
Along with industrialization development, the pollutant entering ocean in recent years continues to increase, and causes large area coastal ocean water quality environment to be deteriorated, causes the loss being difficult to make up to the marine industries such as sea-farming, Marine Tourism.
Ocean water quality environmental monitoring all has great significance in exploitation ocean resources, early warning ocean water quality disaster, protection ocean water quality environment etc.Carrying out ocean water quality environmental monitoring will for understanding marine environmental pollution degree; further enforcement marine protection measure provides effect technique support; multi-sensor system can provide many key elements, multi-disciplinary long-term, comprehensive, real-time monitored; can be applied to and comprise basic scientific research, natural resources and energy resources, exploratory development utilization, disaster and many-sided research field such as environmental protection, navigation, to meet the demand of the most basic seabed of national marine safety, the various key element of water body and sea.
On-the-spot artificial sample, special monitoring ship, buoy in-situ monitoring is mainly contained at present for ocean water quality environmental monitoring means.There is following shortcoming in these 3 kinds of modes: 1. on-the-spot artificial sample needs personnel to monitoring point, water sample to be fetched testing laboratory's detection, and large-scale sea water quality monitoring will expend manually considerable respectively; 2. special marine environmental monitoring ship quantity is few and operating cost is high, ability in sampling is not enough, monitoring frequency is lower, the monitoring instrument ageing equipment in water quality monitoring laboratory, large-sized analytic instrument is equipped with uneven, and motor-driven monitoring capability is not enough, it is few that mobile water quality research and application laboratory is equipped with quantity, cause field monitoring inferior capabilities, Automatic Water Quality Monitoring Stations negligible amounts, lack the ability of automatic telemetry; 3. monitering buoy long-term work in the seawater, affects by rough seas, needs frequent maintenance.Above technology obviously cannot meet marine environmental protection to demand that is efficient and water quality monitoring means on a large scale.
Summary of the invention
The present invention is directed to the multi-sensor system monitoring scarce capacity that prior art exists, the problem lacking automatic telemetry ability, provide a kind of boat-carrying ocean water quality online auto monitoring system.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of boat-carrying ocean water quality online auto monitoring system, comprise data center and site monitoring system on the bank, it is characterized in that: described site monitoring system is arranged on boats and ships, the ocean water quality status data that described site monitoring system is measured is transferred to data center on the bank by public wireless network, and described data center on the bank stores ocean water quality status data and shares.
Beneficial effect of the present invention: the multi-sensor system that the present invention is based on wireless network, achieves monitoring in real time of ocean water quality on a large scale, enhances the monitoring to the marine eco-environment and pre-alerting ability.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of the embodiment of the present invention.
Fig. 2 is the site monitoring system pipeline principle schematic of the embodiment of the present invention.
Fig. 3 is that the site monitoring system of the embodiment of the present invention controls workflow diagram automatically.
Embodiment
A kind of boat-carrying ocean water quality online auto monitoring system, comprise data center and site monitoring system on the bank, it is characterized in that: described site monitoring system is arranged on boats and ships, the ocean water quality status data that described site monitoring system is measured is transferred to data center on the bank by public wireless network, and described data center on the bank stores ocean water quality status data and shares.
For realizing system automatic transmission data and improving seawater quality measuring accuracy, reduce measuring error, the integrated water quality measurement instrument of described site monitoring system, control module, pipe-line cell, GPS and radio communication apparatus, the Sensor section immersion of described water quality measurement instrument is installed in pipe-line cell.
For reducing the impact of seawater quality measurement last time on water quality measurement next time, after seawater quality measurement completes, fresh water is adopted to clean pipe-line cell and water quality measurement instrument, fresh water sources is high pressure fresh water pipeline on ship, and described pipe-line cell comprises seawaterline, fresh water line, main line and bubble tank of cooling down; Described seawaterline entrance is connected with ship leakage mouth; The water inlet end of fresh water line is connected with high pressure fresh water pipeline on ship; Described seawaterline outlet is connected with main line by electric T-shaped valve with fresh water line outlet; Described bubble tank of cooling down is connected on main line.
For the sensor surface avoiding marine microorganism and other material to be attached to water quality measurement instrument affects measuring accuracy, should remain that seawater at the uniform velocity flows at channel interior during monitoring system work at the scene.For this reason, preferably sea water pump is set at described seawaterline entrance, in described seawaterline, filtrator is set.
At some in particular cases, the seawater quality of automatic measurement likely exists measures inaccurate situation, therefore must the seawater quality automatically measured be rechecked, for this reason, arrange water sampling reservoir in preferred monitoring system at the scene, described water sampling reservoir is arranged on bubble pot bottom of cooling down.
For realizing automatic transmission and the reception of data, described data center is on the bank equipped with data collection computer, radio communication apparatus, data server and router.
A method of work for boat-carrying ocean water quality online auto monitoring system, is characterized in that: comprise the following steps:
A the longitude and latitude in water quality marine site to be monitored is transferred to the site monitoring system be arranged on boats and ships by public wireless network by () on the bank data center;
B () described site monitoring system sails the marine site to water quality to be monitored with boats and ships;
C () measurement procedure: seawater enters site monitoring system by seawaterline, is measured seawater quality by water quality measurement instrument;
(d) data transmission stream journey: ocean water quality status data is transferred to data center on the bank by public wireless network by the radio communication apparatus of site monitoring system;
(e) cleaning and recoil flow process: electric T-shaped valve is switched to fresh water line and is connected with main line, fresh water first enters main line by fresh water line, main line and water quality measurement instrument are cleaned, then electric T-shaped valve is switched to fresh water line and is connected with seawaterline, fresh water enters seawaterline by fresh water line, carries out recoil cleaning to seawaterline;
F () site monitoring system receives the longitude and latitude in next water quality marine site to be monitored, and sail the marine site to next water quality to be monitored with boats and ships.
The system of boat-carrying ocean monitoring water quality on line, is made up of multiple-quality water surveying instrument, control module, pipe-line cell, GPS, radio communication apparatus and grab sample collection storage device.In ship's navigation, system is from the direct extracting seawater of ship leakage mouth.System with water quality measurement instrument be core, appliance computer software, automatic control and wireless communication technique, achieve the Control and Schedule based on position, course line and event, the automatic operation of pipe system, many kinds of parameters water quality measurement, water sample collection storage, cleaning and the function such as recoil, Wireless Data Transmission, have the advantages that automaticity is high, the quality of data is rechecked, operating cost is low.Application installed by ship for civil use, real time on-line monitoring ocean water quality environment on a large scale.
The on-the-spot pipe system of described pipe-line cell is provided with sea water pump, flowmeter, filtrator, cool down bubble tank, electric T-shaped valve, hand stop valve.Seawaterline entrance is connected with ship leakage mouth, and directly get fresh water line and be directly connected with the high pressure fresh water pipeline on ship, discharge pipe line is connected with drainpipe on ship.
Water quality measurement instrument comprises pH, temperature, salinity, turbidity and chlorophyll sensor, nutrient salt analyzer and algae analyser.In water quality Instrument sensor dip tube, and there is good water-stop structure.
System is also equipped with automatic water sampling reservoir, and the authenticity for measurement data is rechecked.
The multiple board that control system is expanded by pci bus by industrial computer, comprise, multi-channel serial port card or AD conversion card gather water quality measurement instrument and flow meter data, and multi-channel serial port card is gathered GPS and obtains geographical location information, realized and data center's wireless telecommunications on the bank by radio communication apparatus.The control to sea water pump, electric T-shaped valve, automatic water sampler in pipe-line cell is realized by digital I/O card.
The longitude and latitude in water quality marine site to be monitored is transferred to the site monitoring system be arranged on boats and ships by public wireless network by data center on the bank; Site monitoring system sails the marine site to water quality to be monitored with boats and ships; Judge the position of ship according to GPS information, before boats and ships arrive working point, in metering-in control system self-inspection check system, whether the opening of motorized valve is normal, then start up system sampling successively, measurement and cleaning recoil flow process.Each workflow transition period switches realization flow conversion by the unlatching of electric T-shaped valve.
Measurement procedure: electric T-shaped valve keep seawaterline and main line water inlet unimpeded, Industrial Computer Control sea water pump is fetched water from ship leakage mouth, adopt filtrator by material filterings such as the grains of sand in seawater, the bubble of seawater is discharged from bubble tank top run-down pipe of cooling down in flow process in pipeline.Systematical control seawater flows in pipeline with stable speed, for water quality measurement instrument provides good measuring condition, while water quality measurement instrument is measured, is gathered and Cord blood water sample by Industrial Computer Control automatic water sampler.In pilot piping running simultaneously, perform data acquisition module and display module industrial computer collection water quality measuring instrument data, store the measurement data that displays temperature, salinity, turbidity, dissolved oxygen DO, pH and chlorophyll sensor on field unit display, nutrient salt analyzer, algae analyser are real-time, and the system status information such as piping flow, GPS geographical location information, time, system voltage.After completion system data acquisition, above-mentioned information and system works daily record are packed by system communication module, are sent to data center on the bank.
Cleaning and recoil flow process: start electric T-shaped valve and inlet pipeline is switched to fresh water line, by the high pressure fresh water pressure flush pipeline on ship and water quality measurement sensor.Afterwards the return pipe of main line is switched to and gets seawaterline, with the front end filtrator in fresh water recoil seawaterline, the material that filter screen blocks is rinsed out.
After above workflow terminates, the main control module of control system will be in waiting status, when ship navigates by water next working point, restart to trace back workflow, will go round and begin again, and realize the water quality measurement on a large scale along course line.
Native system has following outstanding advantages:
System is installed to ship for civil use, realizes the water quality monitoring at seawater scene when navigating by water, and has efficient and low cost feature.Data are sent to DRS on the bank in real time, realize the efficient of ocean water quality environment and the monitoring on a large scale based on Geographic Information System.
System adopts streaming measuring principle, is attached to sensor surface impact measures, by keeping seawater at the uniform velocity to flow at channel interior to the flow control of sea water pump during system works for avoiding marine microorganism and other material.
Operation system setting cleaning and the automatic maintenance process that recoils, increase system stability and functional reliability.
System is by fetching lab analysis by the water sample of field unit low tempertaure storage, and with the data of field monitoring than surveying, the authenticity of checking field measurement data, guarantees the quality of data acquisition.
Below in conjunction with drawings and Examples, the invention will be further described.
Site monitoring system (Fig. 1) is provided with industrial computer 2, pipe-line cell 3, water quality measurement instrument 4, water sample collection storage device 5, radio communication apparatus 6, GPS7.Built-in multi-channel serial port card 2-1, the multi-channel serial port card 2-2 of industrial computer 2, AD conversion card 2-3, digital IO IO card 2-4.Pipe-line cell 3 comprises electric T-shaped valve 3-1 and 3-2, sea water pump 3-3, flowmeter 3-4 and 3-5, cool down bubble tank 3-6, hand stop valve 3-7,3-8 and 3-9.Water quality measurement instrument 4 comprises nutrient salt analyzer 4-1, algae analyser 4-2, chlorophyll sensor 4-3, thermohaline sensor 4-4, turbidity transducer 4-5, dissolved oxygen sensor 4-6, pH sensor 4-7, injection temperature sensor 4-8.Multi-channel serial port card 2-2 connects water quality measurement instrument 4 and flowmeter 3-4 and 3-5 by cable, gathers water quality data and flowmeter information.Industrial computer serial ports connects GPS7 receiver by cable and obtains geographical location information, connects radio communication apparatus 6 realization and data center's wireless telecommunications on the bank.Digital I/O card 2-1 realizes distributing seawater to sea water pump 3-3 extracting seawater in pipeline 3 and electric T-shaped valve 3-1 and 3-2 by cable and flows in pipeline, and the control of automatic water sampler 5.Gather water quality measurement instrument 4 data simultaneously.Gps antenna 7 and radio communication apparatus 6 are installed on the upper deck mast of boats and ships.Other parts are installed to boats and ships lower cabin body.
Seawaterline (Fig. 2) is connected in series sea water pump 3-3 from the water inlet in the cabin, bottom of boats and ships successively by pipeline, temperature sensor 4-8, filtrator 3-10, flowmeter 3-4.After entering pipeline by motorized valve 3-1 switching seawater and fresh water, connect cool down bubble tank 3-6, flowmeter 3-5.The instrument of one section of pipeline serial connection duct type water quality measurement afterwards comprises pH sensor 4-7, temperature and salinity sensor 4-4, turbidity transducer 4-5 and chlorophyll sensor 4-3, dissolved oxygen sensor 4-6.Nutrient salt automatic analyser 4-1 and algae analyser 4-2 is by pipeline and receive on this section of pipeline.These three sections and the pipeline connect is respectively equipped with hand stop valve 3-7,3-8 and 3-9, in order to mate pressure and the flow of pipeline.
Pipeline control, water quality measurement data acquisition and data communication facility is realized by industrial computer system program.System starts work by setting along working point, the course line cycle, Fig. 3 is the single workflow of system, the interval of navigating by water after boats and ships being left harbour is set to working point, the position of ship is judged according to GPS information, if boats and ships arrive working point, system starts self-inspection, and in check system, whether the opening of motorized valve is normal, as self-inspection is normal, by start up system measurement procedure, water sampling flow process and automatic cleaning recoil flow process.
Measurement procedure: industrial computer 3 controls sea water pump 3-3 and fetched water from ship leakage mouth by seawater, adopts filtrator 3-10 by material filterings such as the grains of sand in seawater, and the bubble in pipeline is discharged from bubble tank 3-6 top of cooling down.By adjustment hand stop valve 3-7,3-8,3-9 opening angle, mate each shunt circuit seawater and reach stable flow velocity, maintain setting-up time, be convenient to sensor measurement.Control automatic water sample gatherer 5 by industrial computer 3 to work, collect and Cord blood water sample.In workflow, control running simultaneously, industrial computer gathers the data that water quality measuring instrument (comprising chlorophyll sensor 4-3, thermohaline sensor 4-4, dissolved oxygen sensor 4-5, turbidity transducer 4-6, pH sensor 4-7, temperature sensor 4-8, algae analyser 4-1 and nutrient salt analyzer 4-2) is measured, and the system status information such as GPS geographical location information, time, system voltage, above-mentioned information and system works daily record are packed, is sent to data center on the bank.
Cleaning and recoil flow process: industrial computer 3 starts motorized valve 3-2 and inlet pipeline is switched to fresh water line, injects fresh water toward pipeline.Pressure flush pipeline and sensor.Be switched to by motorized valve 3-3 afterwards and get seawaterline and carry out pipeline back-flushing, the filtrator 3-10 in pressurization recoil seawaterline, washes out the material of blocking.
Claims (7)
1. a boat-carrying ocean water quality online auto monitoring system, comprise data center and site monitoring system on the bank, it is characterized in that: described site monitoring system is arranged on boats and ships, the ocean water quality status data that described site monitoring system is measured is transferred to data center on the bank by public wireless network, and described data center on the bank stores ocean water quality status data and shares.
2. a kind of boat-carrying ocean according to claim 1 water quality online auto monitoring system, it is characterized in that: the integrated water quality measurement instrument of described site monitoring system, control module, pipe-line cell, GPS and radio communication apparatus, the Sensor section immersion of described water quality measurement instrument is installed in pipe-line cell.
3. a kind of boat-carrying ocean according to claim 2 water quality online auto monitoring system, is characterized in that: described pipe-line cell comprises seawaterline, fresh water line, main line and bubble tank of cooling down; Described seawaterline entrance is connected with ship leakage mouth; The water inlet end of fresh water line is connected with high pressure fresh water pipeline on ship; Described seawaterline outlet is connected with main line by electric T-shaped valve with fresh water line outlet; Described bubble tank of cooling down is connected on main line.
4. a kind of boat-carrying ocean according to claim 3 water quality online auto monitoring system, is characterized in that: described seawaterline entrance is provided with sea water pump.
5. a kind of boat-carrying ocean according to claim 3 water quality online auto monitoring system, it is characterized in that: also comprise water sampling reservoir, described water sampling reservoir is arranged on bubble pot bottom of cooling down.
6. a kind of boat-carrying ocean according to claim 1 water quality online auto monitoring system, is characterized in that: described data center is on the bank equipped with data collection computer, radio communication apparatus, data server and router.
7. a method of work for boat-carrying ocean water quality online auto monitoring system, is characterized in that: comprise the following steps:
A the longitude and latitude in water quality marine site to be monitored is transferred to the site monitoring system be arranged on boats and ships by public wireless network by () on the bank data center;
B () described site monitoring system sails the marine site to water quality to be monitored with boats and ships;
C () measurement procedure: seawater enters site monitoring system by seawaterline, is measured seawater quality by water quality measurement instrument;
(d) data transmission stream journey: ocean water quality status data is transferred to data center on the bank by public wireless network by the radio communication apparatus of site monitoring system;
(e) cleaning and recoil flow process: electric T-shaped valve is switched to fresh water line and is connected with main line, fresh water first enters main line by fresh water line, main line and water quality measurement instrument are cleaned, then electric T-shaped valve is switched to fresh water line and is connected with seawaterline, fresh water enters seawaterline by fresh water line, carries out recoil cleaning to seawaterline;
F () site monitoring system receives the longitude and latitude in next water quality marine site to be monitored, and sail the marine site to next water quality to be monitored with boats and ships.
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