CN-122018508-A - Continuous online monitoring method for river pollutants

CN122018508ACN 122018508 ACN122018508 ACN 122018508ACN-122018508-A

Abstract

The invention belongs to the technical field of water quality monitoring, and particularly relates to a continuous on-line monitoring method for river pollutants, which comprises unmanned ships and a background controller, wherein a monitoring area of a river is divided into a plurality of continuous monitoring sections, the unmanned ships are deployed in the monitoring sections, the unmanned ships reciprocate in the respective monitoring sections, the unmanned ships sample and detect water bodies according to set time intervals, detection data are returned to the background controller, when the pollutant agglomerates need to be continuously monitored, the unmanned ships are driven to carry out follow monitoring after the pollutant agglomerates enter the monitoring sections, and the unmanned ships in the monitoring sections repeat step S3 in sequence until the pollutant agglomerates move out of the monitoring area along with water flow. According to the invention, through allocating the cruising rule of the unmanned ship, the unmanned ship can realize on-line monitoring in a defined monitoring area, and when the pollutant mass needing to be focused is generated, continuous monitoring of pollutants can be realized through the mutual matching of the unmanned ship, so that an effective basis is provided for subsequent treatment.

Inventors

Gao Bingna
Han Aijing
PAN HONGWEI
WANG GUANGWEI

Assignees

浚慧科技(北京)有限公司

Dates

Publication Date: 20260512
Application Date: 20260226

Claims (10)

1. A continuous on-line monitoring method for river pollutants comprises an unmanned ship with a monitoring sensor and a background controller, and is characterized in that the method comprises the following steps, S1, dividing a monitoring area of a river channel into a plurality of continuous monitoring sections, wherein unmanned vessels are arranged in the monitoring sections, and the unmanned vessels travel back and forth in the respective monitoring sections; s2, sampling and detecting the water body by the unmanned ship according to a set time interval, and returning detection data to the background controller; S3, when the pollutant block mass is required to be continuously monitored, driving the unmanned ship to carry out follow-up monitoring after the pollutant block mass enters the monitoring section; s4, the unmanned ship in each monitoring section sequentially repeats the step S3 until the pollutant mass moves out of the monitoring area along with the water flow.
2. The method for continuously monitoring the pollutants in the river channel on line according to claim 1, wherein the first unmanned ship of the first monitoring section monitors along with the movement of the pollutant mass, the second monitoring section connected with the first monitoring section is provided with a second unmanned ship, and the second unmanned ship reaches the starting point of the second monitoring section in advance before the first unmanned ship moves to the end point of the first monitoring section.
3. The method for continuously monitoring the pollutants in the river channel on line according to claim 2, wherein the first unmanned ship returns to the starting point of the first monitoring section immediately after reaching the end point of the first monitoring section, the reciprocating cruising state is recovered, the pollutant mass enters the second monitoring section, the second unmanned ship moves along with the pollutant mass in the second monitoring section, and the unmanned ship in the subsequent monitoring section repeats the operation until the pollutant mass moves out of the monitoring area along with the water flow.
4. The method for continuously monitoring river channel pollutants on line as claimed in claim 2, wherein after the first unmanned ship reaches the end point of the first monitoring section, the first unmanned ship spans the end point of the first monitoring section and follows the pollutant mass into the second monitoring section; the second unmanned ship crosses the starting point of the second monitoring section to enter the first monitoring area, and makes a reciprocating cruising in the first monitoring area; the unmanned ship in the subsequent monitoring section repeats the operation and moves into the monitoring section of the previous stage step by step, the first unmanned ship always moves out of the monitoring area along with the pollutant mass, and the first unmanned ship is reserved in the monitoring section of the last stage to cruise back and forth.
5. The continuous on-line monitoring method for river pollutants according to claim 1, wherein a measuring tank is arranged on the unmanned ship, a monitoring sensor is arranged in the measuring tank, the measuring tank is connected with a water drawing component and a drainage pump, the water drawing component comprises a water drawing pump and a water drawing filter rod (1), the water drawing filter rod (1) is arranged at the input end of the water drawing pump, the water drawing pump sucks water samples through the water drawing filter rod (1) and then injects the water samples into the measuring tank, and the water samples are discharged through the drainage pump after being measured through the monitoring sensor.
6. The continuous on-line monitoring method of river pollutants according to claim 5, wherein the unmanned ship bottom is provided with a containing groove (2) recessed into the ship body, the water drawing filter rod (1) is hinged to the unmanned ship bottom in a rod-shaped structure, and the water drawing filter rod (1) has a swinging degree of freedom swinging out of the containing groove (2).
7. The continuous on-line monitoring method for river pollutants according to claim 6, wherein the upper end of the water drawing filter rod (1) is fixedly provided with a swinging shaft (3), the swinging shaft (3) is fixedly provided with a swinging gear (4), the unmanned ship is provided with a driving motor, and the output end of the driving motor is in meshed transmission with the swinging gear (4) and drives the water drawing filter rod (1) to swing reciprocally.
8. The continuous on-line monitoring method for river pollutants according to claim 5, wherein the water drawing filter rod (1) is of a hollow tubular structure and comprises a water drawing cavity (5) and a connecting cavity (6) arranged at the upper end of the water drawing cavity (5), a filtering hole (7) is formed in the side wall of the water drawing cavity (5), a purging plug (8) is further arranged in the water drawing cavity (5), the purging plug (8) comprises a first baffle plate (801), a second baffle plate (802) and a connecting pipe (803) arranged between the first baffle plate (801), the second baffle plate (802) and the connecting pipe (803), a purging cavity is formed between the first baffle plate (801), the second baffle plate (802) and the connecting pipe (803), an air supply pipe (9) is arranged in the connecting cavity (6), one end of the air supply pipe (9) is connected with an air supply device (10), the other end of the air supply pipe (9) penetrates through a partition plate between the water drawing cavity (5) and the connecting cavity (6) and is connected with the connecting pipe (803), a through hole on the partition plate forms a sliding limit, the side wall of the air supply pipe (9) is further provided with a connecting pipe (803), and the lifting motor (11) is arranged on the side wall of the air supply cavity (6) and is in a reciprocating mode, and the lifting motor (11) is meshed with the lifting motor (11) and has a degree of freedom and can move in the lifting and driving the lifting cavity (11).
9. The continuous on-line monitoring method of river pollutants according to claim 8, wherein a water passing pipe (12) is arranged between the first baffle (801) and the second baffle (802), an annular cutting edge (13) is arranged below the second baffle (802), and the cutting edge (13) is abutted against the inner wall of the water drawing cavity (5).
10. The continuous online monitoring method for river pollutants according to claim 9, wherein a water drawing cap (14) is arranged at the bottom of the water drawing cavity (5), the water drawing cap (14) comprises a limiting plate (15) and a limiting plug (16), the limiting plate (15) and the water drawing cap (14) enclose a limiting cavity, the limiting plug (16) is positioned in the limiting cavity, a reset spring (17) is arranged between the limiting plug (16) and the water drawing cap (14), an adapter opening (18) connected with a water drawing pump is arranged on the side wall of the water drawing cap (14), a through limiting through hole (19) is formed in the limiting plate (15), the limiting plug (16) is abutted with the limiting plate (15) by pushing and pushing of the reset spring (17), and the limiting through hole (19) and the adapter opening (18) on the limiting plate (15) are closed; The lower part of the second baffle plate (802) is provided with a supporting rod (20) which is in butt joint with the limiting plug (16), the supporting rod (20) pushes the limiting plug (16) by means of movement of the purging plug (8), and the limiting through hole (19) and the switching port (18) are communicated after the limiting plug (16) moves.

Description

Continuous online monitoring method for river pollutants Technical Field The invention belongs to the technical field of water quality monitoring, and particularly relates to a continuous on-line monitoring method for river pollutants. Background The traditional monitoring mode of the existing river channel pollutants still takes fixed monitoring point arrangement and manual field sampling detection as main, wherein the fixed monitoring points are limited by arrangement cost and river channel topography, can be generally only arranged on key sections or key areas of a river channel, are low in arrangement density and fragmented in coverage range, cannot realize uniform coverage of the whole area of the river channel, are easy to form monitoring blind areas, cannot track and monitor key pollution lumps, and have a monitoring effect to be improved, meanwhile, the traditional method mainly adopts a mode of regularly and fixedly collecting data, generally adopts 1-2 times daily manual collection, is difficult to capture instantaneous fluctuation of the concentration of pollutants and sudden pollution events, and causes insufficient continuity and integrity of monitoring data. The unmanned ship monitoring scheme mainly adopts an in-situ sampling mode for monitoring, the mode belongs to online monitoring, the measuring frequency is high, the real-time performance is good, but the unmanned ship adopts a water drawing type measuring method, a filter screen of a sampling device of the unmanned ship is easily blocked by suspended impurities, algae and the like, long-time monitoring cannot be realized, and the monitoring applicability and stability are insufficient. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a continuous on-line monitoring method for river pollutants, which can monitor the distribution condition of the pollutants in a river on line, track and monitor heavy pollution masses or sections and provide data support for pollution control. The invention adopts the specific technical scheme that: The continuous on-line monitoring method of river pollutant includes unmanned ship with monitoring sensor and background controller, S1, dividing a monitoring area of a river channel into a plurality of continuous monitoring sections, wherein unmanned vessels are arranged in the monitoring sections, and the unmanned vessels travel back and forth in the respective monitoring sections; s2, sampling and detecting the water body by the unmanned ship according to a set time interval, and returning detection data to the background controller; S3, when the pollutant block mass is required to be continuously monitored, driving the unmanned ship to carry out follow-up monitoring after the pollutant block mass enters the monitoring section; s4, the unmanned ship in each monitoring section sequentially repeats the step S3 until the pollutant mass moves out of the monitoring area along with the water flow. The first unmanned ship of the first monitoring section monitors along with the movement of the pollutant mass, the second monitoring section connected with the first monitoring section is provided with a second unmanned ship, and the second unmanned ship reaches the starting point of the second monitoring section in advance before the first unmanned ship moves to the end point of the first monitoring section. And returning to the starting point of the first monitoring section immediately after the first unmanned ship reaches the end point of the first monitoring section, recovering the reciprocating cruising state, enabling the pollutant mass to enter the second monitoring section, enabling the second unmanned ship to move in the second monitoring section along with the pollutant mass, and repeating the operation until the pollutant mass moves out of the monitoring area along with the water flow by the unmanned ship of the subsequent monitoring section. After the first unmanned ship reaches the end point of the first monitoring section, the first unmanned ship spans the end point of the first monitoring section and enters the second monitoring section along with the pollutant mass; the second unmanned ship crosses the starting point of the second monitoring section to enter the first monitoring area, and makes a reciprocating cruising in the first monitoring area; the unmanned ship in the subsequent monitoring section repeats the operation and moves into the monitoring section of the previous stage step by step, the first unmanned ship always moves out of the monitoring area along with the pollutant mass, and the first unmanned ship is reserved in the monitoring section of the last stage to cruise back and forth. The unmanned ship is provided with a measuring tank, a monitoring sensor is arranged in the measuring tank, the measuring tank is connected with a water drawing assembly and a drainage pump, the water drawing assembly comprises a water drawing pump and a water drawi