51 results about "Seawater quality" patented technology

The invention relates to the technical field of seawater quality detection, and discloses a seawater quality monitoring method based on automatic multi-source data assimilation, which comprises the following steps: acquiring a satellite remote sensing image of a seawater monitoring area, and carrying out eutrophic hierarchical division on the seawater monitoring area to obtain an eutrophic divided ocean area; optical sensing data of the seawater monitoring area are collected, and the suspended particulate matter concentration of the seawater monitoring area is determined; collecting temperature sensing data of the seawater monitoring area, and analyzing the water quality change level of the seawater monitoring area; collecting salinity data and dissolved oxygen data of the seawater monitoring area, and analyzing the ecological structure change degree of the seawater monitoring area; and based on the eutrophication divided ocean area, the suspended particulate matter concentration, the water quality change level and the ecological structure change degree, constructing an ocean multi-attribute comprehensive graph, and giving an early warning to the corresponding monitoring user of the seawater monitoring area. According to the invention, the comprehensiveness of seawater quality detection can be improved.

The invention discloses a seawater quality AI fusion intelligent monitoring system and method based on full spectrum data, and relates to the technical field of seawater quality monitoring. The system comprises a full-spectrum data acquisition module, a water quality initial evaluation and characteristic wave band identification module, an environment adaptive wave band selection module, a weight dynamic distribution and anomaly detection module, a multi-dimensional data fusion and optimization module and an abnormal event response and report module. The system collects original spectral data through a spectral sensor, establishes a basic water quality model after preprocessing, dynamically selects an effective wave band according to real-time environmental parameters, allocates weights, outputs water quality parameters after fusing data of a multi-dimensional sensor, and finally responds to abnormal events and generates a report. The system realizes intelligent and real-time monitoring of seawater quality, and can effectively deal with sudden pollution events and capture water quality fluctuation.

The invention discloses a water quality data monitoring system and method applied to a shallow sea buoy, and relates to the technical field of seawater monitoring and repairing, and the system comprises a data acquisition module, a buoy adjustment module, a seawater monitoring module, a seawater analysis module and a real-time monitoring module, the data acquisition module is used for regularly acquiring water quality detection data transmitted by buoys at all point positions of the shallow sea, calculating water evaluation values according to the water quality detection data and then calculating abnormal values of all the water quality detection data based on the water evaluation values; the technical key points are as follows: during use, water quality detection data are analyzed, multiple items of data of monitored water quality are comprehensively analyzed to calculate water evaluation values, then an abnormal value between the water evaluation values between buoys is calculated by utilizing the principle that pollution diffusion needs a certain time, and the difference of seawater quality can be clearly and intuitively known through the abnormal value. Therefore, whether the seawater is polluted or not can be clearly known, and the method is relatively simple and has a good application prospect.

The invention relates to the technical field of regional marine environment evaluation, in particular to a method for predicting the seawater quality pollution degree based on sensitive phytoplankton. Comprising the following steps: collecting a water body sample of surface seawater in an offshore area; dNA in the water body sample is filtered and extracted, and high-throughput sequencing analysis is carried out after PCR amplification; performing species classification annotation on each sequence, and constructing a data matrix according to obtained phytoplankton OUT data; calculating a Spearman correlation coefficient; constructing an inter-species correlation matrix, and selecting proper species to construct a co-occurrence network; exporting edge data and point data, and screening nodes with the maximum betweenness centrality or the highest tight centrality as key species; calculating an organic pollution index (OPI) and carrying out Spearman correlation analysis to determine OPI sensitive phytoplankton; and establishing a prediction model for prediction to obtain a predicted environmental pollution index. The method has the advantages that model complexity and noise influence are reduced; the prediction accuracy reaches 100% when the water quality is seriously polluted.

The utility model discloses a depth-adjustable seawater quality sampling device which comprises a submersible, a remote control module and a positioning module are arranged in the submersible, the depth-adjustable seawater quality sampling device further comprises a sampling mechanism, and the sampling mechanism is arranged on the submersible; according to the depth-adjustable seawater quality sampling device, through the first remote ball valve and the second remote ball valve, on-off of water flow can be accurately controlled, the water flow can be conveniently controlled at different stages, then the internal pressure of the sampling shell is controlled, and through cooperation with the one-way valve, water flow backflow can be prevented, and it is guaranteed that seawater flows in the preset direction; according to the invention, mixing of water samples at different depths is avoided, the sampling accuracy is ensured, the underwater propeller rotates to generate water flow, and the first one-way drainage valve is matched, so that the previously stored relatively shallow sea water can be drained to the outside, stratified sampling of sea water at different depths is facilitated, and the sampling accuracy is further improved.

The utility model discloses a different-depth seawater quality sampling device for ocean monitoring, which relates to the field of water quality sampling devices and comprises a sampler and a connecting seat. The clamping assembly comprises an inserting groove formed in the bottom of the connecting base, grooves formed in the two sides of the interior of the connecting base and a threaded ring arranged on the outer wall of the connecting base in a sleeving mode, an inserting block is inserted into the inserting groove, clamping holes are formed in the two sides of the inserting block, and springs are installed in the grooves. By arranging the clamping assembly, when samplers with different heights need to be used for sampling, the samplers need to be taken down for replacement, at the moment, a worker rotates a threaded ring, so that the threaded ring does not shield and limit a pressing rod any more, and at the moment, a spring is stretched to push a movable plate to reset and move, and then a clamping column is driven to reset and move; the clamping column is moved out of the clamping hole and does not clamp and limit the insertion block, and then the sampler can be taken down, so that the sampler is separated from the connecting seat.

The invention relates to the technical field of fishery equipment, and discloses a culture cabin capable of changing water based on ocean wave energy and a semi-submersible type sea-opening culture work ship, the culture cabin comprises a ship body, the culture cabin is arranged below a deck of the ship body, the culture cabin comprises a cabin, a sea-opening water changing opening is formed in the broadside of the cabin, and a water outlet pipeline communicated with a seabed water changing opening is arranged at the bottom of the cabin; and a first one-way valve for draining water outwards from the cabin is arranged on the water outlet pipeline, and when surges enter the cabin from the sea-opening water changing opening and generate pressure difference exceeding preset pressure, the first one-way valve is opened to conduct one-way water draining to the outside of the ship till the inner pressure difference and the outer pressure difference are the same, the cultivation work ship utilizes wave energy to drive water changing, energy consumption can be remarkably reduced, and water changing uniformity can be improved. The seawater quality can meet the culture requirement, and the operation cost of open-sea culture is reduced.

The invention discloses a deep sea live fish transportation system and method, and relates to the technical field of deep sea culture. The deep and far sea live fish transportation system comprises a fish cabin; an outer circulation subsystem; the water body interchanging device is used for interchanging external water bodies and internal water bodies of the fish cabins; the inner circulation subsystem is used for carrying out circulation treatment on the water body in the fish cabin; the first water quality monitoring module is used for monitoring a first water quality parameter of a water body in the fish cabin; the second water quality monitoring module is used for monitoring a second water quality parameter of the external water body; the external circulation subsystem and the internal circulation subsystem are switched according to the first water quality parameter and the second water quality parameter. According to the technical scheme provided by the invention, the influence of external seawater quality change can be reduced, the bearing density of the system is improved, and a biodegradation system with complex procedures does not need to be arranged.

This invention discloses a rapid monitoring method for comprehensive spectral ecological parameters of seawater based on a cross-neural network. The method includes: receiving the UV-Vis absorption spectrum and three-dimensional fluorescence spectrum of a standard solution sample as initial spectral data; preprocessing the initial spectral data to obtain a comprehensive spectral dataset; establishing a cross-neural network model, inputting the comprehensive spectral dataset into the model, and outputting predicted values ​​of multiple seawater ecological parameter components by fusing spectral feature matrices and cross-referencing information from the UV-Vis absorption spectrum and three-dimensional fluorescence spectrum, and adjusting the network weights by comparing these predicted values ​​with the actual values; stopping training once the model accuracy meets the target, fixing the network weights, and then inputting the preprocessed spectral data of the seawater sample to be tested into the trained cross-neural network model to output the content of the ecological parameter components. This method can simultaneously measure multiple ecological parameters, improving monitoring efficiency and accuracy, and providing a key technology for the development of multi-parameter sensors for seawater quality.

The present invention belongs to the technical field of water quality detection, and specifically to a device and method for detecting the quality of seawater, comprising a floating plate; a water retaining ring is fixedly connected to the top surface of the floating plate, a stabilizing cone is fixedly connected to the bottom surface of the floating plate, and through holes are provided at the central parts of the floating plate and the stabilizing cone; a connecting shell is provided in the through hole, a cavity is provided in the connecting shell, a detection unit is provided in the cavity, and a water inlet assembly is provided on the connecting shell; a rotating shaft is driven to rotate by a motor, thereby rotating a winding wheel, and at this time, the wire wound on the winding wheel will move downward, thereby allowing the connecting shell to enter the water, and after the connecting shell reaches a specified depth, the water inlet assembly is opened to allow water to enter the connecting shell, and then detected by the detection unit, thereby meeting the detection requirements for different water levels and greatly improving the convenience of water quality detection.

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle for marine survey and a method for using the unmanned aerial vehicle. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body is connected to a lower connecting plate through a first lifting mechanism, and a seawater quality survey mechanism is connected to the lower connecting plate, so that seawater can be collected and surveyed, and seawater at different depths can be collected and surveyed. The pressure difference caused by different depths is utilized to press water into a sampler for collection, and after the collection is completed, automatic closure can be achieved to prevent the water pressure from increasing due to continued descent and the water collected at a position with low pressure from being pressed out; at the same time, real-time observation of seawater quality is achieved and recorded and stored by carrying a water quality survey sensor; sediments at different positions can be acquired and collected, and after the acquisition and collection is completed, the acquired sediments can be conveniently studied separately.

The invention discloses a method for predicting the survival condition of shellfishes in a pipeline, which comprises the following steps of: acquiring indexes such as salinity, temperature, pH value and dissolved oxygen of seawater in the pipeline through a seawater quality sensor, and constructing a prediction model for predicting the survival condition of shellfishes in the pipeline based on seawater quality parameters; the survival rate of the shellfish in the pipeline is predicted through the model so that the shellfish in the pipeline can be cleaned in time, operation is easy and convenient, practicability is high, and the detection cost is greatly reduced.

Provided is a water quality improvement device capable of improving the water quality of seawater by sending river water containing nutrients and oxygen several times that of normal times, for example, during heavy rain, into the sea where cultivated seaweeds, shellfish, etc. inhabit. 【Solution means】The first water quality improvement device 1A includes a water intake means 10A for taking in water obtained from the river 200A, and a water supply means 20A for discharging the taken-in water into the sea 100. The water supply means 20A supplies air to the water taken in from the river 200A and discharged into the sea 100.

To provide a nutrient salt supply monitoring and control system for underwater plants, which allows monitoring based on color information while suppressing the effect of absorption characteristics caused by seasonal, weather-based, or temporal variations in ambient light and seawater quality.SOLUTION: A nutrient salt supply monitoring and control system for underwater plants comprises an underwater camera for capturing images of aquatic plants and a color chart, a hue correction unit for correcting the hue of the image of the underwater plants captured by the underwater camera based on the captured image of the color chart, a nutrient salt supply amount calculation unit for calculating the nutrient salt supply amount to the underwater plants based on the color information of the hue-corrected image of the underwater plants, and a nutrient salt supply unit for supplying nutrient salt to the underwater plants.SELECTED DRAWING: Figure 1

The utility model provides a sea water quality detector for kelp seedlings, relates to the technical field of kelp seedling raising, and solves the problems that an existing sea water quality detector needs to manually sample sea water and discharge the sea water, is not convenient enough and is not beneficial to later verification. The water quality detection device comprises a detection water tank and a water quality detector arranged on the detection water tank, a detection probe of the water quality detector extends into the detection water tank, the water inlet mechanism is arranged on one side of the detection water tank and connected with the water inlet end of the detection water tank, and a float switch is arranged in the detection water tank. And a collection box is arranged below the detection water tank. The sea water detection device has the beneficial effects that sea water detection of sea water seedling raising can be automatically sampled and detected; water feeding and water discharging of sampled seawater can be automatically controlled.

The present invention relates to the technical field of ice makers. Disclosed is a hybrid seawater ice maker, comprising an ice-making module and a filtering module. A compressor and an ice-making bucket for making crushed ice are fixedly arranged in the ice-making module. The filtering module is arranged above the ice-making module. A rectangular filtering plate is arranged in the filtering module. A filtering cavity is formed in the filtering plate. A plurality of rotating filter elements are arranged in the filtering cavity. A first transmission chain is arranged between a plurality of rotating shafts in a vertical direction to link said plurality of rotating shafts. A second transmission chain is arranged between the rotating shafts in opposite faces on the two sides of the filtering plate to link said rotating shafts. An adjustment button is fixedly arranged on the uppermost rotating shaft among the plurality of rotating shafts. The structure can allow for adjustment of the filtering degree and filtering speed of the filtering module by adjusting the rotating angles of the rotating filter elements, so that the ice maker can adapt to environments having different seawater qualities, thereby achieving the optimal filtering effect and speed.

The utility model provides a special membrane pollution detection device for seawater detection, which belongs to the technical field of seawater quality detection and comprises a bearing mechanism, a shell, a water inlet component arranged at the top of the shell, a water outlet pipe fixedly mounted at the bottom of the shell and a membrane component arranged in an inner cavity of the shell. And a shunting mechanism. Through the linkage design of the rotating shaft, the connecting shaft, the dynamic baffle, the groove and the swing plate of the dynamic adjusting assembly, the flow speed and the flow direction in the flow channel can be automatically adjusted according to the actual flowing situation of seawater, formation of a local retention area is reduced, the seawater flowing path is optimized, and the seawater flowing efficiency is improved. The second pressure sensor monitors the pressure change in the flow channel in real time, provides data support for dynamic adjustment, ensures the uniformity and stability of seawater flow, effectively solves the problem of membrane pollution caused by non-uniform flow in a traditional device, remarkably improves the filtering efficiency, prolongs the service life of a membrane assembly, and reduces the maintenance cost at the same time.

The water quality detection device comprises a buoy, a photovoltaic module is arranged at the top of the buoy, a positioning seat is fixedly connected to the center of the bottom of the buoy, a sampling suite is arranged at the bottom of the positioning seat, a detection mechanism is fixedly connected to one side of the outer wall of the sampling suite, and the sampling suite comprises an outer pile casing. According to the utility model, the sampling suite, the detection mechanism and the buoy are matched with one another, and the detection mechanism is arranged on the buoy, so that the detection depth of the detection probe can be adjusted, reciprocating cruise detection is carried out on sea water at different depths, and when water quality data are abnormal, sea water at different depths can be quickly sampled and taken out after the buoy is recovered; according to the device, the water quality can be further detected and studied, a data exception source can be quickly found, greater influence on aquaculture is avoided, the water quality control strength of aquaculture water is effectively improved, and the safety of the aquaculture water is conveniently guaranteed.

The invention discloses a seawater quality on-line monitoring device and a monitoring method, and relates to the technical field of water quality monitoring. Comprising a detection cabin, the top of the detection cabin is fixedly connected with a fixed seat in a penetrating mode, a water quality monitor is installed in a blocking cover at the bottom of the fixed seat, a first elastic telescopic rod is fixedly installed at the center of the fixed seat, and a partition plate is fixed to the movable end of the first elastic telescopic rod; a triggering assembly is arranged between the sliding rod and the inner bottom wall of the detection cabin, and a sealing plate is fixed to the right end of the sliding rod. By arranging the adjusting assembly, the detection depth can be automatically adjusted according to the flow velocity of seawater, it is ensured that obtained data can represent the real characteristics of disturbed water masses, by arranging the detection cabin, the water inlet, the sealing plate and the triggering assembly, sampling and isolation detection are conducted on a water body at the specific depth, and reading is stable; and the water quality detection sensor is in a closed dry environment in a non-detection period.

The present application relates to a kind of offshore waters mariculture of multifunctional aquaculture system, comprising: aquaculture box, for cylindrical structure;Magnetic levitation power system, is set in the both ends of aquaculture box, including concentrically arranged inner ring assembly and outer ring assembly, inner ring assembly is connected with aquaculture box to carry aquaculture box, outer ring assembly is magnetically connected between inner ring assembly and is suspended by magnetic force inner ring assembly and drives inner ring assembly rotation to thereby drive aquaculture box rotation;Float, for hollow structure, at least be set in the both ends of aquaculture box, and with outer ring assembly connection to provide buoyancy;Intelligent monitoring control system, with aquaculture box connection, to at least control aquaculture box in seawater in the depth of floating;Multi-source clean energy system, with inner ring assembly, outer ring assembly power connection to provide electricity.The present application can solve the problem of low aquaculture efficiency caused by the problems such as the simple structure of aquaculture box in prior art, unable to respond to extreme weather, environmental pollution caused by seawater quality reduction, disaster early warning response deficiency.

The utility model relates to the technical field of seawater quality regulation and control, and discloses a seawater industrial aquaculture water quality regulation and control device which comprises a control device, a filter box is arranged on the side wall of the control device, a first connecting pipe is fixedly connected to the side wall of the filter box, and a third connecting pipe is fixedly connected to the interior of the first connecting pipe. A seawater tank is fixedly connected to one end of the third connecting pipe, an acid-base monitor is fixedly connected to the inner wall of the seawater tank, a fixing plate is fixedly connected to the inner wall of the seawater tank, and a quantity control assembly is fixedly connected to the side wall of the fixing plate. According to the utility model, the solution enters the quantitative tank, the first hydraulic cylinder pushes the sliding plate to drive the quantitative tank to move, the side wall connecting plate is driven to enable the rotating plate to fall, the solution in the tank is accurately controlled, the effect of quantifying the flow of the acid-base solution is achieved, and the problem that the inlet amount of the acid-base solution cannot be effectively controlled when the acid-base solution is manually added is solved. And the stability of the culture water quality regulation and control device is improved.

The application discloses an intelligent proportioning and dynamic purification circulating system of seawater-based environment-friendly mud, and particularly relates to the technical field of mud proportioning; by collecting seawater salinity, drilling displacement, borehole diameter, mud circulating pressure and other parameters in real time, a dynamic monitoring data package is constructed, and a preset algorithm is used to realize accurate dynamic adjustment of additive proportioning; after the monitoring data package is comprehensively processed according to the preset algorithm, the additive proportioning in the process of preparing seawater-based environment-friendly mud and the purification process of waste mud are dynamically adjusted; wherein the proportioning adjustment of the salt-resistant agent is determined by analyzing seawater salinity through the preset algorithm; the proportioning adjustment of the tackifier is determined by analyzing drilling displacement, borehole diameter and mud circulating pressure through the preset algorithm, and the problems that the prior art relies on manual setting of fixed proportioning according to past experience and cannot adapt to the dynamic changes of seawater quality and drilling conditions in real time, which often leads to substandard mud performance, are solved.

The utility model discloses an eutrophication degree detection device for seawater quality, which comprises a floating seat and a support plate, the top end of the floating seat is fixedly connected with the support plate, one end of the support plate is fixedly connected with a connecting plate, one end of the connecting plate is provided with a pushing mechanism, the top end of the support plate is fixedly connected with a connecting frame, and the top end of the connecting frame is fixedly connected with a lifting mechanism. The device comprises a connecting frame, a lowering mechanism is arranged at one end of the connecting frame, a porcelain disc is arranged at the bottom end of the lowering mechanism, baffles are fixedly connected to the two ends of the porcelain disc, a connecting column is fixedly connected to one end of the connecting frame, and a camera is fixedly connected to the bottom end of the connecting column. Meanwhile, the device can be pushed to a farther area on the shore under the action of the inner rod and the shell, it is guaranteed that the depth of water can meet the descending depth of the porcelain dish, therefore, a ship does not need to be carried, special transportation equipment is not needed, and compared with the ship, the device is small in size, small, exquisite and convenient to carry.

The invention discloses an intelligent proportioning and dynamic purification circulating system for seawater-based environment-friendly slurry, and particularly relates to the technical field of slurry proportioning. A dynamic monitoring data packet is constructed by collecting parameters such as seawater salinity, drilling displacement, borehole diameter, slurry circulating pressure and the like in real time, accurate and dynamic adjustment of the additive ratio is realized by utilizing a preset algorithm, and after the monitoring data packet is comprehensively processed according to the preset algorithm, the additive ratio is accurately and dynamically adjusted. Dynamically adjusting the additive ratio in the process of preparing the seawater-based environment-friendly slurry and the purification process of the waste slurry; wherein the proportion adjustment of the salt-resistant agent is determined by analyzing the salinity of the seawater through a preset algorithm; the proportion adjustment of the tackifier is determined by analyzing the drilling displacement, the borehole diameter and the slurry circulating pressure through a preset algorithm, and the problems that in the prior art, the fixed proportion is set by depending on manual work according to past experience, the seawater quality and the dynamic change of the drilling working condition cannot be adapted in real time, and the slurry performance is often not up to the standard are solved.

The invention relates to the technical field of marine environment monitoring, in particular to a coastal seawater quality prediction and early warning method based on machine learning, which comprises the following steps of: acquiring water quality data of an automatic monitoring station in real time, constructing a machine learning model input structure taking a time sliding matrix as a core, and predicting future water quality parameters by adopting a supervised learning algorithm; and a water quality risk quantitative evaluation system is innovatively provided. The defects of a traditional method in the aspects of business operation, real-time early warning and ecological risk pre-judgment are overcome, full-process automation from data collection, model training, prediction analysis to graded early warning is achieved, and intelligent decision support is provided for offshore ecological protection and disaster prevention and control.

The invention discloses a seawater desulfurization water channel flow control method, a storage medium and electronic equipment. The control method comprises the steps that the PH value of a water outlet of an aeration tank, the boiler load, the original flue gas sulfur dioxide concentration and water quality parameters of open sea seawater are obtained; constructing a PH spatial distribution matrix according to the PH value and a preset number of PH sensors; the PH value, the boiler load, the original flue gas sulfur dioxide concentration and the water quality parameter serve as input quantities, variance minimization of the PH space distribution matrix serves as a target optimization function, and the orifice opening degree is output; and controlling the opening degree of the orifice of a water outlet of a lower tower water drainage pipeline arranged in the aeration tank according to the opening degree of the orifice. By implementing the device, the water flow of the water outlet of the lower tower water drainage pipeline can be adjusted, so that the PH value of each water outlet is uniform, the resistance of each water channel is hardly influenced, the power consumption of a circulating water pump is reduced, the occupied area is small, and the investment cost is reduced.

The invention discloses a composite separation membrane and a preparation method and application thereof.The composite separation membrane comprises a porous substrate and a composite membrane layer attached to at least one face of the porous substrate, and the composite membrane layer is a GO-PEI composite membrane layer formed by compounding graphene oxide and branched polyethyleneimine; and the GO-PEI composite film layer is of a single-layer or multi-layer structure formed by layer-by-layer overlapping. The composite separation membrane has an ultrathin structure, good mechanical stability and an adjustable transmission channel, can give consideration to permeability and selectivity, and can adapt to various application scenes such as gas separation, seawater filtration / purification, seawater quality detection and the like; meanwhile, a corresponding membrane assembly and device are provided, and engineering use and detection coupling are facilitated.

The invention discloses an ocean water quality unmanned aerial vehicle sampling and multi-parameter detection site air-ground combined device, which comprises an unmanned aerial vehicle and a base, the base comprises a supporting seat, a first charging metal contact, a first storage battery, a fixing ring and a multi-parameter water quality detection device, and the first charging metal contact is embedded and fixed at the top end of the supporting seat. A second motor drives a winding shaft to rotate, so that a steel wire rope is loosened, a sampling bin moves downwards under the action of gravity until the sampling bin goes deep into a marine sampling point, and then a second electromagnetic valve is opened, so that seawater is poured into the sampling bin through the second electromagnetic valve; after sampling, the unmanned aerial vehicle rises, ocean spectrum data are collected through a multispectral imaging camera, then the unmanned aerial vehicle resets and moves to the top end of a supporting seat, a second charging metal contact makes contact with a first charging metal contact to charge the unmanned aerial vehicle, meanwhile, a first electromagnetic valve is opened, and sampled seawater flows into a fixing ring; and the seawater quality can be detected through the multi-parameter water quality detection equipment.

The present application relates to a kind of fibrous photoelectrochemical seawater antibiotic concentration detector and its preparation method, in turn including carbon nanotube fiber as substrate, alpha-Ga2O3 film layer being arranged on carbon nanotube fiber, and the inner core electrode reserved in one end of carbon nanotube fiber.The reserved inner core electrode is used as working electrode, forms passway with counter electrode by seawater, then 254nm ultraviolet light is irradiated with certain light intensity, and antibiotic concentration in seawater is fitted according to photocurrent size.The detector of the present application can work at 0V bias, with the characteristics of self-powered work;The film surface of the detector is dense, and the thickness is stable and uniform, flexible and bendable, twisted, and can be prepared in large area.The detector has great application prospect in the fields of seawater quality monitoring, wearable devices and intelligent textiles.