CN114111910A - Pollution flux monitoring system for water system - Google Patents
Pollution flux monitoring system for water system Download PDFInfo
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a pollution flux monitoring system for a water system, which comprises an inflow port pollution flux detection subsystem, a surface water system pollution flux detection subsystem and a monitoring platform, wherein the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem are respectively used for detecting the pollution flux of each inflow port, the pollution flux of the surface water system and the source direction of the pollution flux in real time, the inflow port pollution flux detection subsystem comprises first detectors arranged at each inflow port, the first detectors are arranged on the side edges of the inflow ports and comprise radar flow rate detectors and radar water level detectors arranged at the upper part of a river, and the first detectors further comprise first water quality detectors for collecting and detecting water flow. According to the invention, the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem are established, so that the real-time monitoring of the pollution flux of the river inlet and the surface runoff can be realized, and the real-time monitoring and early warning judgment of water pollution can be carried out.
Description
Technical Field
The invention relates to the technical field of water pollution flux monitoring systems, in particular to a pollution flux monitoring system for a water system.
Background
At present, the environmental pollution treatment strength is gradually increased in China, and the strictest environmental protection system is implemented. In water environment management, water quality target management aiming at rivers is to determine the direction source of water pollution on one hand and determine the water pollution flux of the water pollution at a fixed end time on the other hand. The total amount control is carried out based on the river water quality target, the proper pollutant load total amount can be determined according to the self-purification force of a basin or an area environment, corresponding measures are required to be taken when the load total amount is exceeded, in water environment management, an independent detection unit is not divided in water pollution detection of the basin at present, the source of water pollution cannot be determined clearly, and in river water environment management, water pollution generated by runoff of surface water systems such as mine drainage, domestic wastewater, farmland drainage and the like without a clear path is often ignored, so that the monitoring of each pollution source is required to be relatively independent in an actual water pollution flux monitoring link so as to determine the main source of water system pollution.
Disclosure of Invention
The invention aims to provide a pollution flux monitoring system for a water system, which can realize real-time monitoring of pollution flux of a river inlet and surface runoff and carry out real-time monitoring and early warning judgment on water pollution by establishing an inflow port pollution flux detection subsystem and a surface water system pollution flux detection subsystem.
In order to achieve the purpose, the invention provides the following technical scheme: the system comprises an inflow port pollution flux detection subsystem, a surface water system pollution flux detection subsystem and a monitoring platform, wherein the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem are respectively used for detecting the pollution flux of each inflow port, the pollution flux of the surface water system and the source direction of the pollution flux in real time;
the system comprises a water body, a ground surface water system pollution flux detection subsystem and a monitoring platform, wherein the ground surface water system pollution flux detection subsystem comprises second detectors arranged at the periphery of the water body at intervals, the second detectors comprise Doppler ultrasonic flowmeters used for detecting the flow of ground surface water and second water quality detectors used for detecting the water quality of the ground surface water, and the first detectors and the second detectors are electrically connected with the monitoring platform and are provided with corresponding position codes respectively and are used for transmitting water flow detection signals of corresponding positions to the monitoring platform.
Preferably, first detector includes unable adjustment base and detection arm, and unable adjustment base installs at the influent stream mouth side, and the detection arm is installed and is extended to the river top in unable adjustment base top and one end level, radar velocity of flow surveys the meter and sets up for rivers direction slope, the receiving direction and the rivers flow direction of radar velocity of flow surveys the meter and becomes first contained angle, just first contained angle is greater than 30 degrees and is less than 80 degrees, radar level surveys the meter and sets up with the rivers direction is perpendicular.
Preferably, first water quality testing ware is including installing the extension arm on surveying the arm, the extension arm includes electronic extending structure, electronic extending structure's one end is connected with the hydrophone, the hydrophone is including the accommodation chamber that is used for the water storage, be equipped with a plurality of water body test probe in the accommodation chamber.
Preferably, the second water quality detector comprises a water taking pipe inclined at a certain angle towards the water flow direction, the other end of the water taking pipe is connected with the test box, and a plurality of water body detection probes are also arranged in the test box.
Preferably, the test box includes that the bottom is the test chamber of taper structure and is used for supporting the support frame of test chamber, the taper bottom of test chamber is equipped with electric valve.
Preferably, the test box and the water body detection probe in the accommodating chamber have the same structure, and the water body detection probe at least comprises a PH meter probe, a conductivity probe and an electrochemical heavy metal detection electrode.
Preferably, still be equipped with a camera device on detecting the arm, camera device is including the light screen and the camera that the slope set up, the camera sets up the back of light screen, the light facing side of light screen is equipped with a photovoltaic board, the energy storage is connected to the output of photovoltaic board, the energy storage be used for to the camera provides the electric energy.
Preferably, still be equipped with first controller on detecting the arm, first controller with the monitoring platform communication is connected, the camera is used for gathering the surface of water image, the camera is connected with first controller and photosensitive induction circuit electricity, and photosensitive induction circuit is connected with first controller electricity, and the camera is used for transmitting the surface of water image of gathering to first controller, the camera disposes the shooting strategy, the shooting strategy sets up to shoot in succession at the first time interval when the photosensitive circuit detected value is greater than first luminance value.
Preferably, the first controller is configured with a sewage identification strategy, the sewage identification strategy comprises performing gray level processing on the acquired water surface image, eliminating reflected highlight spots in the image, then performing gray level gradient calculation, if the gray level gradient difference value of each position in the water surface image is smaller than a first difference value, randomly selecting one gray level gradient value in the image and the gray level gradient value of the image information of the standard detection water sample to perform further comparison judgment, if the difference value is smaller than a second difference value, judging that no obvious sewage exists, and if the difference value of the image information of the standard detection water sample is larger than or equal to the second difference value or the gray level gradient difference value of each position in the water surface image is larger than or equal to the first difference value, judging that a suspected sewage area exists; (ii) a The first controller is provided with an additional detection strategy, and the additional detection strategy comprises that when the first controller judges that the water surface image shot by the camera has a sewage area, the first controller controls the telescopic structure to drive the water taking device to take water and carry out water quality detection.
Preferably, the telescopic structure is electrically connected with a first controller, the first controller is provided with a water sample collection strategy, the water sample collection strategy comprises controlling the telescopic structure to stretch and retract according to a first collection period to drive the water sampler to extend into water for sampling, the monitoring platform comprises a sampling database, historical water sample collection information is stored in the sampling database, the historical water sample collection information comprises collection time and corresponding water quality information, and the water quality information at least comprises a PH value, conductivity, heavy metal types and contents thereof;
the monitoring platform is provided with an early warning strategy, the early warning strategy comprises the steps of calculating the pollution flux of each sampling measurement period according to data measured by a first detector arranged at each inflow opening, and generating an early warning signal when the pollutant flux of a single measurement period is greater than a first threshold value or the accumulated pollutant flux in the first time is greater than a second threshold value, wherein the early warning signal comprises position coding information of the detector and corresponding water quality information.
Compared with the prior art, the invention has the beneficial effects that: by establishing the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem, the real-time monitoring of the pollution flux of the river inlet and the surface runoff can be realized, and the real-time monitoring and early warning judgment of the water pollution can be carried out.
The inflow port pollution flux detection subsystem comprises first detectors arranged on the side edges of the inflow ports, the first detectors comprise radar flow velocity detectors, radar water level detectors and first water quality detectors, the radar flow velocity detectors are arranged on the upper portion of a river, the radar flow velocity detectors obtain surface flow velocity by using the Doppler principle, the radar water level detectors calculate the distance from a radar probe to the water surface by calculating the time required by the radar to the probe after being transmitted, the position of the probe is fixed and unchanged, water level information can be converted, and therefore the flux of polluted water in a certain time period can be calculated by combining the detection result of the water quality detectors.
The system comprises a ground surface water system pollution flux detection subsystem and a monitoring platform, wherein the ground surface water system pollution flux detection subsystem comprises second detectors arranged on the periphery of a water body at intervals, the second detectors comprise Doppler ultrasonic flow meters used for detecting ground surface water flow and second water quality detectors used for detecting the quality of the ground surface water, the second detectors are electrically connected with the monitoring platform, the prefixes of water body information transmitted to the monitoring platform by the second detectors are all provided with two bits of position coding information, and the monitoring platform can obtain the direction of the ground surface water system pollution by identifying the position coding information after calculating the water body pollution.
Drawings
FIG. 1 is a block flow diagram of a pollution flux monitoring system for a water system according to the present invention;
FIG. 2 is a schematic diagram of a first embodiment of a first detector in a pollution flux monitoring system for a water system according to the present invention;
FIG. 3 is a schematic view of a water collector in a pollution flux monitoring system for a water system according to the present invention;
FIG. 4 is a schematic diagram of a Doppler ultrasonic flowmeter used in a water system pollution flux monitoring system according to the present invention;
FIG. 5 is a schematic view showing the structure of a second water quality detector used in the pollution flux monitoring system for a water system according to the present invention;
FIG. 6 is a schematic view showing the internal structure of a second water quality detector used in a pollution flux monitoring system for a water system according to the present invention;
fig. 7 is a schematic structural diagram of a second embodiment of a first detector in a pollution flux monitoring system for a water system according to the present invention.
In the figure: 1. a first detector; 101. a fixed base; 102. a probe arm; 103. a radar flow rate detector; 104. a radar level gauge; 2. a first water quality detector; 201. an extension arm; 202. an electric telescopic structure; 203. a water intake device; 2031. a piston tube; 2032. an electromagnetic push rod; 2033. a mounting frame; 2034. a rubber plug; 204. an accommodating chamber; 205. a water body detection probe; 3. a Doppler ultrasonic flow meter; 31. a second water quality detector; 301. a water intake pipe; 302. a test box; 303. a test chamber; 304. a support frame; 305. an electrically operated valve; 306. an electric baffle plate; 307. a water level gauge; 401. a visor; 402. a camera; 403. an energy storage device; 5. a balancing device; 501. an extension rod; 502. a balancing weight; 503. a chute; 504. an electric push rod; 6. a first controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the flow diagram of the pollution flux monitoring system for a water system and the schematic structural diagram of a first embodiment of a first detector provided by the present invention include an inflow port pollution flux detection subsystem and a surface water system pollution flux detection subsystem and a monitoring platform, the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem are respectively used for detecting the pollution flux of each inflow port and the pollution flux of the surface water system and the direction of the source thereof in real time, the inflow port pollution flux detection subsystem includes a first detector 1 disposed at each inflow port, the first detector 1 is disposed at the side of the inflow port and includes a radar flow rate detector 103 and a radar water level detector 104 disposed at the upper part of a river, the first detector 1 further includes a first water quality detector 2, the water flow detection device is used for collecting and detecting water flow; the earth's surface water system pollution flux detection subsystem sets up the second detector at the water periphery including the interval, the second detector is including being used for detecting the Doppler ultrasonic flowmeter 3 of earth's surface water discharge and being used for detecting the second water quality detector 31 of earth's surface water quality, and is a plurality of first detector 1 with the second detector all is connected with the monitoring platform electricity and all is equipped with corresponding position coding information for convey the rivers detected signal of relevant position to the monitoring platform. By establishing the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem, the real-time monitoring of the pollution flux of the river inlet and the surface runoff can be realized, and the real-time monitoring and early warning judgment of the water pollution can be carried out.
As shown in fig. 2, the first detector 1 includes a fixed base 101 and a detection arm 102, the fixed base 101 is installed at the side of the inflow port, the detection arm 102 is installed above the fixed base 101, one end of the detection arm horizontally extends to the top of the river, the radar flow rate detector 103 is inclined with respect to the water flow direction, a first included angle is formed between the receiving direction of the radar flow rate detector 103 and the water flow direction, the first included angle is greater than 30 degrees and smaller than 80 degrees, the speed of the water flow surface can be obtained by calculating the frequency shift of the echo by using the doppler principle, and the radar water level detector 104 is perpendicular to the water flow direction and calculates the distance from the radar probe to the water surface by calculating the time required from the radar to the probe after the radar is transmitted.
As shown in fig. 2 and 3, the first water quality detector 2 includes an extension arm 201 installed on the probe arm 102, the extension arm 201 includes an electric telescopic structure 202, one end of the electric telescopic structure 202 is connected with a water obtaining device 203, the top end of the electric telescopic structure 202 is connected with the extension arm 201, the water obtaining device 203 includes an accommodating chamber 204 for storing water, a plurality of water body detection probes 205 are arranged in the accommodating chamber 204, and the water body detection probes 205 at least include PH meter probes, conductivity probes and electrochemical method heavy metal detection electrodes. Still be equipped with a camera device on detecting arm 102, camera device is including the light screen 401 and the camera 402 that the slope set up, camera 402 sets up the back of light screen 401 can effectively avoid the influence of light to shooing, the light-facing side of light screen 401 is equipped with a photovoltaic board, energy storage 403 is connected to the output of photovoltaic board, energy storage 403 is used for to camera 402 provides the electric energy. The detection arm 102 is further provided with a first controller, the first controller is in communication connection with the monitoring platform, the camera 402 is used for collecting water surface images, the camera 402 is electrically connected with the first controller and a photosensitive sensing circuit, the photosensitive sensing circuit is used for detecting light intensity, the light intensity is reduced near the evening, at this time, the camera 402 is not required to take pictures, only in the daytime, the photosensitive sensing circuit is electrically connected with the first controller, the camera 402 is used for transmitting the collected water surface images to the first controller, the camera 402 is provided with a shooting strategy, the shooting strategy is set to be that when the detection value of the photosensitive circuit is greater than a first brightness value, the camera 402 continuously takes pictures at a first time interval, and when the light intensity is sufficient, the shooting frequency of the camera 402 is greater than the frequency of the telescopic structure driven by the first controller, so that the camera 402 can play a role in auxiliary detection, the problem that short-term sewage is converged into the sewage tank and cannot be detected is avoided.
As shown in fig. 3, the water collector 203 includes a piston tube 2031 and a rubber plug 2034 disposed inside the piston tube 2031, the top of the rubber plug 2034 is connected to the top end of an electromagnetic push rod 2032, the electromagnetic push rod 2032 is fixedly mounted on a mounting rack 2033, the mounting rack 2033 is fixedly connected to the supporting edge of the piston tube 2031, a plurality of accommodating chambers 204 with different heights may be disposed along the length direction of the piston tube 2031, the accommodating chambers 204 are all communicated with the piston tube 2031, the internal structures of the accommodating chambers 204 are the same, in order to reduce calculation errors, the data calculated by the accommodating chambers 204 may be averaged to reduce detection errors, the height of the communication position between the accommodating chamber 204 and the piston tube 2031 is smaller than the height of the rubber plug 2034, so that it is possible to avoid that enough water samples cannot be absorbed, the accommodating chambers 204 are all disposed obliquely downward, and the bottom of the accommodating chamber 204 is provided with a waterproof electromagnetic valve, when a water sample test is completed (a fixed time can be set), the first controller controls the electromagnetic valve to be opened and closed after the water sample is released.
As shown in fig. 4, which is a schematic structural diagram of a doppler ultrasonic flowmeter 3 in a pollution flux monitoring system for a water system according to the present invention, the overall height of the apparatus is 3CM, the measurement can be performed only by a water submerging probe, a pressure type water level gauge 307 is arranged in the apparatus, the flow area is calculated by the relationship between the water level and the cross section, the flow rate is obtained by multiplying the flow rate by the flow area, and the water level, the flow rate, the instantaneous flow rate and the accumulated flow rate can be simultaneously monitored.
The doppler ultrasonic flowmeter 3 is provided with a transmitting transducer and a receiving transducer, the transmitting transducer transmits ultrasonic waves with a certain frequency to bubbles and solid particles in the flowing liquid to generate scattered waves, the scattered waves are received by the receiving transducer, the frequency change of the scattered waves is proportional to the moving speed of the particles (or bubbles) (the received scattered signals are basically transmitted from the vicinity of the center because the transducers have certain directivity), and the flow speed is measured based on the frequency shift difference.
As shown in fig. 4 to 6, the second water quality detector 31 includes a water intake pipe 301 inclined at a certain angle toward the water flow direction, the other end of the water intake pipe 301 is connected to a test box 302, a plurality of water body detection probes 205 are also arranged in the test box 302, the water body detection probes 205 at least include PH meter probes, conductivity probes and electrochemical heavy metal detection electrodes, the test box 302 includes a test chamber 303 with a conical structure at the bottom and a support frame 304 for supporting the test chamber 303, and an electric valve 305 is arranged at the conical bottom of the test chamber 303.
As shown in fig. 6, the inside connector with intake pipe 301 that is equipped with of test box 302 is equipped with an electronic separation blade, and the drive division fixed mounting of electronic separation blade is at the top of the test box 302 body, and the connector department of electronic separation blade and intake pipe 301 is equipped with the sealing film, can improve sealing performance, and inside first fluviograph 307 and the second controller of still being equipped with of test box 302, the drive division of first fluviograph 307 and electronic separation blade all is connected with the second controller electricity, and when the water level in test chamber 303 touched and reached first fluviograph 307, the import was plugged up with electronic separation blade to the second controller just control electronic separation blade, does not influence the test, and after the test, the second controller control electric valve 305 opened, will test water discharge.
As shown in fig. 7, the structural schematic diagram of the second embodiment of the first detector 1 provided by the present invention is different from the first embodiment in that, in order to improve the overall stability of the first detector 1, a balancing device 5 is disposed at the rear end of the first detector 1, the balancing device 5 includes an extension rod 501 disposed at the rear end of the detecting arm 102 and extending in the direction away from the detecting arm 102, a sliding slot 503 is disposed on the extension rod 501, and a counterweight 502 is slidably connected to the extension rod 501 through the sliding slot 503, one end of the counterweight 502 is connected to an electric push rod 504, the telescopic structure and an electromagnetic push rod 2032 are mutually linked, an in-place switch is disposed at the top of the electromagnetic push rod 2032, the in-place switch is electrically connected to the first controller, after the electric telescopic structure 202 is in place, the electric push rod 504 pushes the counterweight 502 to move in the direction away from the water sampler 203, and after the electric push rod 504 is pushed in place, the electromagnetic push rod 2032 pulls the rubber plug 2034 to move upwards to get water, water flows into the accommodating chamber 204, and the probe in the accommodating chamber 204 performs water quality detection, because the detection process lasts for a period of time, the first controller can control the electric telescopic structure 202 to retract at the moment to wait for the detection result.
Further, the first controller is configured with a sewage identification strategy, the first controller stores image information of a standard detection water sample, the sewage identification strategy comprises carrying out gray level processing on the obtained water surface image, eliminating reflected highlight spots in the image, then carrying out gray level gradient calculation, if the gray level gradient difference value of each position in the water surface image is smaller than a first difference value, randomly selecting a gray level gradient value of one position in the image to be further compared and judged with the gray level gradient value of the image information of the standard detection water sample, if the difference value is smaller than a second difference value, judging that no obvious sewage exists, and if the difference value with the image information of the standard detection water sample is larger than or equal to the second difference value or the gray level gradient difference value of each position in the water surface image is larger than or equal to the first difference value, judging that a suspected sewage area exists; the first controller is configured with an additional detection strategy, wherein the additional detection strategy comprises that when the first controller judges that the water surface image shot by the camera 402 has a sewage area, the first controller controls the telescopic structure to drive the water taking device 203 to take water and perform water quality detection. The flexible structure is electrically connected with the first controller, the first controller is provided with a water sample collection strategy, the water sample collection strategy comprises controlling the flexible structure to stretch and stretch according to a first collection period to drive the water sampler 203 to stretch into water for sampling, the monitoring platform comprises a sampling database, historical water sample collection information is stored in the sampling database, the historical water sample collection information comprises collection time and corresponding water quality information, the water quality information at least comprises a PH value, conductivity, heavy metal types and contents of the heavy metals, and a polluted water flux value of each month or quarter or year can be calculated according to the sampling database; the monitoring platform is provided with an early warning strategy, the early warning strategy comprises the steps of calculating the pollution flux of each sampling measurement period according to data measured by a first detector arranged at each inflow opening, and generating an early warning signal when the pollutant flux of a single measurement period is greater than a first threshold value or the accumulated pollutant flux in the first time is greater than a second threshold value, wherein the early warning signal comprises position coding information of the detector and corresponding water quality information.
The working principle is as follows: a first controller in the first detector 1 controls the electric telescopic structure 202 to drive the sampler to sample and measure water flow according to a fixed time period, a pH meter probe measures the pH value by adopting a potentiometric measurement principle, the pH meter probe is made of special glass containing a solution with a specific pH value, electrode plates are respectively arranged inside and outside the pH meter probe, and the pH value of the aqueous solution in the accommodating chamber 204 can be obtained by calculating the difference value of the two electrode plates;
the electrochemical heavy metal detection electrode adopts an anodic stripping voltammetry to measure the concentration of metal ions, a reduction potential is applied to a working electrode, when the electrode potential exceeds the precipitation potential of certain ions, the metal ions in the solution are reduced into metal, and the metal ions are electroplated on the surface of the working electrode; when sufficient metal is plated on the surface of the working electrode, a potential is applied to the working electrode at a constant rate, and the metal on the plated electrode is dissolved (oxidized). Each metal has a specific stripping (oxidation) reaction voltage, the metal types are identified according to potential values generated by stripping (oxidation), stripping (oxidation) potential differences are generated by different types of metals, the multiple types of metals are simultaneously measured, the current of the multiple types of metals is measured, and the corresponding potential is recorded so as to calculate the metal ion concentration.
By establishing the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem, the real-time monitoring of the pollution flux of the river inlet and the surface runoff can be realized, and the real-time monitoring and early warning judgment of the water pollution can be carried out; the inflow port pollution flux detection subsystem comprises first detectors 1 arranged on the side edges of inflow ports, the first detectors 1 comprise radar flow velocity detectors 103, radar water level detectors 104 and first water quality detectors 2, the radar flow velocity detectors 103 are arranged on the upper portion of a river, the surface flow velocity is obtained by the aid of the Doppler principle, the radar water level detectors 104 calculate the distance between a radar probe and the water surface by calculating the time required by the radar to the probe after being transmitted, the position of the probe is fixed and can be converted into water level information, and therefore flux of polluted water in a certain time period can be calculated by combining detection results of the water quality detectors.
The earth surface water system pollution flux detection subsystem comprises second detectors arranged on the periphery of a water body at intervals, the second detectors comprise Doppler ultrasonic flow meters 3 used for detecting earth surface water flow and second water quality detectors 31 used for detecting the water quality of earth surface water, the second detectors are electrically connected with the monitoring platform, the prefixes of water body information transmitted to the monitoring platform by the second detectors are all provided with two bits of position coding information, and the monitoring platform can obtain the direction of earth surface water system pollution by identifying the position coding information after calculating the water body pollution.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The system is characterized by comprising an inflow port pollution flux detection subsystem, a surface water system pollution flux detection subsystem and a monitoring platform, wherein the inflow port pollution flux detection subsystem and the surface water system pollution flux detection subsystem are respectively used for detecting the pollution flux of each inflow port, the pollution flux of the surface water system and the source direction of the pollution flux in real time, the inflow port pollution flux detection subsystem comprises first detectors (1) arranged at each inflow port, the first detectors (1) are arranged on the side edges of the inflow ports and comprise radar flow velocity detectors (103) and radar water level detectors (104) arranged on the upper portions of rivers, and the first detectors (1) further comprise first water quality detectors (2) used for collecting and detecting water flows;
the earth's surface water system pollution flux detection subsystem sets up the second detector at the water periphery including the interval, the second detector is including being used for detecting the Doppler ultrasonic flowmeter (3) of earth's surface water discharge and being used for detecting second water quality detector (31) of earth's surface water quality, and is a plurality of first detector (1) with the second detector all is connected with the monitoring platform electricity and all is equipped with corresponding position coding for convey the rivers detected signal of relevant position to the monitoring platform.
2. The pollution flux monitoring system for water system according to claim 1, wherein the first detector (1) comprises a fixed base (101) and a detection arm (102), the fixed base (101) is installed at the side of the inflow port, the detection arm (102) is installed above the fixed base (101) and one end of the detection arm horizontally extends to the upper part of the river, the radar flow velocity detector (103) is arranged obliquely relative to the water flow direction, the receiving direction of the radar flow velocity detector (103) forms a first included angle with the water flow direction, the first included angle is larger than 30 degrees and smaller than 80 degrees, and the radar water level detector (104) is arranged perpendicular to the water flow direction.
3. The pollution flux monitoring system for water system according to claim 2, wherein the first water quality detector (2) comprises an extension arm (201) installed on the probe arm (102), the extension arm (201) comprises an electric telescopic structure (202), one end of the electric telescopic structure (202) is connected with a water collector (203), the water collector (203) comprises a containing chamber (204) for storing water, and a plurality of water body detection probes (205) are arranged in the containing chamber (204).
4. The pollution flux monitoring system for water system according to claim 3, wherein the second water quality detector (31) comprises a water intake pipe (301) inclined at a certain angle towards the water flow direction, the other end of the water intake pipe (301) is connected with a test box (302), and a plurality of water body detection probes (205) are also arranged in the test box (302).
5. The pollution flux monitoring system for a water system according to claim 4, wherein the test box (302) comprises a test chamber (303) having a conical bottom and a support frame (304) for supporting the test chamber (303), the conical bottom of the test chamber (303) being provided with an electrically operated valve (305).
6. The pollution flux monitoring system for water system according to claim 5, wherein the test box (302) and the water body detection probe (205) in the housing chamber (204) have the same structure, and the water body detection probe (205) comprises at least a pH meter probe, a conductivity probe and an electrochemical heavy metal detection electrode.
7. The pollution flux monitoring system for water system according to claim 2-6, wherein a camera device is further disposed on the detection arm (102), the camera device comprises a shading plate (401) and a camera (402) which are obliquely disposed, the camera (402) is disposed on the back surface of the shading plate (401), a photovoltaic panel is disposed on the light facing surface of the shading plate (401), the output end of the photovoltaic panel is connected with an energy accumulator (403), and the energy accumulator (403) is used for providing electric energy to the camera (402).
8. The pollution flux monitoring system for water system according to claim 7, wherein the detection arm (102) is further provided with a first controller, the first controller is in communication connection with the monitoring platform, the camera (402) is used for collecting water surface images, the camera (402) is electrically connected with the first controller and a photosensitive sensing circuit, the photosensitive sensing circuit is electrically connected with the first controller, the camera (402) is used for transmitting the collected water surface images to the first controller, the camera (402) is configured with a shooting strategy, and the shooting strategy is set to continuously shoot the camera (402) at a first time interval when the detection value of the photosensitive circuit is greater than a first brightness value.
9. The system according to claim 8, wherein the first controller is configured with a sewage identification strategy, the sewage identification strategy comprises performing gray level processing on the acquired water surface image, removing reflected highlight points in the image, performing gray level gradient calculation, randomly selecting a gray level gradient value at one position in the image to be compared with a gray level gradient value of image information of a standard detection water sample for further judgment if a gray level gradient difference value at each position in the water surface image is smaller than a first difference value, judging that no obvious sewage exists if the difference value is smaller than a second difference value, and judging that a sewage area exists if the difference value of the image information of the standard detection water sample is greater than or equal to the second difference value or the gray level gradient difference value at each position in the water surface image is greater than or equal to the first suspected difference value; the first controller is provided with an additional detection strategy, and the additional detection strategy comprises the step that when the first controller judges that a sewage area exists in a water surface image shot by the camera (402), the first controller controls the telescopic structure to drive the water taking device (203) to take water and carry out water quality detection.
10. The pollution flux monitoring system for the water system according to claim 9, wherein the telescopic structure is electrically connected with a first controller, the first controller is provided with a water sample collection strategy, the water sample collection strategy comprises controlling the telescopic structure to stretch according to a first collection period to drive a water sampler (203) to stretch into water for sampling, the monitoring platform comprises a sampling database, historical water sample collection information is stored in the sampling database, the historical water sample collection information comprises collection time and corresponding water quality information, and the water quality information at least comprises a pH value, conductivity and heavy metal types and contents thereof;
the monitoring platform is provided with an early warning strategy, the early warning strategy comprises the steps of calculating the pollution flux of each sampling measurement period according to data measured by a first detector arranged at each inflow opening, and generating an early warning signal when the pollutant flux of a single measurement period is greater than a first threshold value or the accumulated pollutant flux in the first time is greater than a second threshold value, wherein the early warning signal comprises position coding information of the detector and corresponding water quality information.
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