An environmental monitoring device and method for resource assessment

Abstract

The application provides an environmental monitoring device and method for resource evaluation, and relates to the technical field of detection. The device comprises a monitoring platform made of light shielding material and internally hollow, wherein a detection chamber and a storage chamber are formed inside. The detection chamber is located at the upper end of the storage chamber and is separated by a protection plate. The storage chamber is communicated with a bent liquid discharge pipeline for sampling liquid outflow. The device further comprises a negative pressure chamber arranged at the bottom of the storage chamber and a high pressure chamber arranged at the top of the storage chamber. The negative pressure chamber and the storage chamber are communicated through a negative pressure pipeline with a built-in second electromagnetic valve. The high pressure chamber and the storage chamber are communicated through a high pressure pipeline with a built-in first electromagnetic valve. The application reduces the influence of ambient light intensity on fluorescence detection and the influence of temperature rise on detection results. The high pressure chamber and the negative pressure chamber cooperate to quickly extract liquid into the storage chamber for fluorescence detection and quickly discharge the liquid, thereby further improving the efficiency of fluorescence detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to an environmental monitoring device and method for resource assessment. BACKGROUND

[0002] The laser emits laser of predetermined wavelength to excite chlorophyll a to produce fluorescence, and the fluorescence camera captures the fluorescence image of the water body. After the image is decomposed into RGB single color channel images, the brightness of different channels is compared, and the relationship between the brightness and the chlorophyll concentration is positively correlated. Then, the chlorophyll content can be quickly and accurately measured by measuring the image brightness, and the image brightness difference of different regions of the image can directly reflect the two-dimensional distribution of chlorophyll.

[0003] The above laser and fluorescence camera are integrated on the surface of the floating plate. The staff only needs to put the integrated floating plate into the surface of the predetermined water body and remotely start the related equipment. The concentration of chlorophyll a in the water body can be continuously detected within a certain period of time without the staff on site for detection sampling, and the environmental resources can be continuously evaluated and monitored.

[0004] The existing monitoring device is relatively open and arranged on the surface of the water body. When the light intensity on the surface of the water body is large, the fluorescence camera cannot accurately record the excited fluorescence. The time range and accuracy of the above monitoring are limited. The laser and fluorescence camera are arranged in the floating of the light shielding material, which can well solve the above problems. However, the traditional sampling structure simply uses a micro chip pump to pump the liquid, and there are problems such as slow pumping and drainage rate, low detection efficiency, and limited detection accuracy due to the decrease of fluorescence intensity of the fluorescence material caused by the increase of internal temperature during long-time extraction process. SUMMARY

[0005] In view of the above problems, the present application is proposed to provide an environmental monitoring device and method for resource assessment.

[0006] In the face of these challenges, the marine monitoring device, as an autonomous monitoring device integrating satellite communication, sensor, computer and data processing technology, shows unique advantages. This research focuses on developing a small satellite monitoring product that is autonomous, low-cost and can effectively improve data security. The main advantages of the monitoring device are:

[0007] The Beidou III short message communication technology of China is adopted, which breaks the dependence on foreign satellite communication systems, improves data security, reduces communication costs, and realizes the autonomous control of fishing monitoring.

[0008] The device integrates an intelligent water surface floating object recognition camera and the potential of water body chlorophyll concentration monitoring, can perform more comprehensive marine environment monitoring, and reduces the influence of surrounding light intensity on fluorescence detection and the influence of temperature rise on detection results.

[0009] The intelligent self-management function is provided, including fault self-diagnosis and repair, intelligent power supply system, etc., which improves the stability and reliability of the monitoring device in the unattended environment.

[0010] The monitoring management system software is developed, data receiving, processing, monitoring and visual display are realized, and a convenient and efficient data management and decision support platform is provided for marine environment monitoring and resource assessment.

[0011] In summary, the development of the monitoring device aims to solve the problems of high cost, poor timeliness, insufficient data security and dependence on imported key equipment in marine environment monitoring and resource assessment, and improve the independent ability and technical level of China in the field of marine monitoring by using self-controllable communication technology, advanced edge computing and artificial intelligence technology, and intelligent management function.

[0012] The purpose of the present application is to overcome the shortcomings of the prior art, provide an intelligent monitoring device for environmental monitoring and resource assessment with low cost, high efficiency and strong real-time performance, and realize intelligent monitoring and resource assessment of water environment.

[0013] To solve the above problems, the present application provides an environmental monitoring device and method for resource assessment, which reduces the influence of surrounding light intensity on fluorescence detection and the influence of temperature rise on detection results, and through the cooperation of the high-pressure chamber and the negative pressure chamber, the liquid can be quickly extracted into the storage chamber for fluorescence detection, and the liquid can be quickly discharged, further improving the efficiency of fluorescence detection.

[0014] To solve the above problems, the technical scheme adopted by the present application is:

[0015] The utility model provides an environmental monitoring device and method for resource assessment, comprising: a monitoring platform made of shading material and hollow inside, a detection chamber and a storage chamber are formed inside, the detection chamber is located at the upper end position of the storage chamber and is separated by a protection plate, a bent liquid discharge pipeline is communicated with the storage chamber for the outflow of sample liquid, further comprising a negative pressure chamber arranged at the bottom of the storage chamber and a high pressure chamber arranged at the top of the storage chamber, the negative pressure chamber and the storage chamber are communicated through a negative pressure pipeline with a built-in second electromagnetic valve, the high pressure chamber and the storage chamber are communicated through a high pressure pipeline with a built-in first electromagnetic valve; a fluorescence monitoring system arranged in the detection chamber, comprising a fluorescence camera and a laser arranged towards the storage chamber; a liquid inlet pipeline vertically arranged and communicated with the storage chamber for the inflow of sample liquid into the storage chamber, one-way valve groups are arranged in the liquid inlet pipeline and the liquid discharge pipeline; wherein the first electromagnetic valve, the second electromagnetic valve and the fluorescence monitoring system are electrically connected.

[0016] Preferably, the negative pressure chamber and the high pressure chamber are both annular, and the high pressure chamber and the negative pressure chamber are respectively located on the upper and lower sides of the storage chamber.

[0017] By setting the negative pressure chamber and the high pressure chamber as the above-mentioned special annular shape, an annular protection structure can be formed on the upper and lower sides of the storage chamber, which can completely fit the storage chamber and play a better heat insulation and heat preservation role.

[0018] Preferably, the bottom of the high pressure pipeline is communicated with a gas blowing nozzle, and the gas blowing nozzle is designed to be bent towards the direction of the protection plate.

[0019] Through the above-mentioned structure design, dry gas heated in the high pressure chamber can be quickly discharged to clean and dry the surface of the protection plate, so as to avoid the attachment of evaporated water vapor on the surface of the protection plate to affect the transparency and affect the recording of the fluorescence detection image.

[0020] Preferably, the first side of the liquid discharge pipeline extends to the bottom of the storage chamber, and the second side of the liquid discharge pipeline is arranged towards the surface of the identification camera.

[0021] Through the above-mentioned structure design, the surrounding area of the identification camera can be cleaned to avoid the accumulation of algae and floating impurities around the identification camera to affect the recording of the surrounding environment by the identification camera.

[0022] Preferably, a gas controller is arranged at the lower end of the monitoring platform, and the gas controller can automatically realize the negative pressure extraction in the negative pressure chamber and the high pressure formation in the high pressure chamber by using the waves on the surface of the water body.

[0023] Through the gas controller, the negative pressure extraction and the high pressure formation can be continuously carried out before detection and during detection, energy can be stored in advance to accelerate the subsequent negative pressure extraction and high pressure extrusion of liquid discharge, the detection time can be shortened, and the detection efficiency can be improved.

[0024] Preferably, the gas controller comprises a stepped sleeve, a control layer plate is slidably connected to the inner wall of the stepped sleeve, a gas extraction assembly and a gas compression assembly with reset elasticity are arranged between the upper end of the control layer plate and the inner wall of the stepped sleeve, the gas extraction assembly is in communication with the negative pressure chamber, the gas compression assembly is in communication with the high pressure chamber, and an anchoring device is bolted to the lower end of the control layer plate.

[0025] Preferably, the gas compression assembly is a telescopic rod, the gas compression assembly comprises a relatively fixed gas compression base, a gas compression piston is sealingly and slidably connected to the inner wall of the gas compression base, a gas compression telescopic rod is fixed to the side wall of the gas compression piston, the gas compression telescopic rod penetrates through the gas compression base and is fixedly connected to the control layer plate, and the gas extraction assembly is an annular elastic air bag which is sleeved outside the gas compression telescopic rod.

[0026] Through the above structural design, the internal structural volume can be fully utilized, the related structure can be simplified, and the efficiency of negative pressure gas extraction and high pressure gas compression can be improved.

[0027] Preferably, the high pressure chamber and the negative pressure chamber are both in communication with pressure relief valve bodies, and the directions of pressure relief of the two pressure relief valve bodies are opposite.

[0028] Preferably, the anchoring device comprises an anchoring rope and a counterweight, and the first end of the anchoring rope is bolted to the bottom of the control layer plate.

[0029] A resource evaluation environment monitoring method using the resource evaluation environment monitoring device, comprising the following steps: S1, putting the assembled resource evaluation environment monitoring device into the surface of a predetermined water body; S2, first controlling the second electromagnetic valve to be on and the first electromagnetic valve to be closed, so that the liquid of the environment water body can be sampled and extracted into the storage chamber by negative pressure; S3, then using the fluorescence monitoring system to detect the chlorophyll a in the water body, emitting a laser with a predetermined projection wavelength from the laser towards the storage chamber, and collecting and processing the fluorescence image in the storage chamber through the fluorescence camera, and calculating the concentration of chlorophyll a in the sampled water body through brightness analysis; S4, after the relevant information signal is transmitted to the terminal after the detection is completed, the second electromagnetic valve is closed, the first electromagnetic valve is then opened, the pressure gas in the high pressure chamber is used to increase the air pressure in the storage chamber, and the sampled liquid in the storage chamber after detection is discharged.

[0030] The beneficial effects of the present application are:

[0031] Compared to existing technologies, this method places the fluorescence camera and laser inside the detection chamber facing the storage chamber, and the entire monitoring platform is made of light-shielding material, preventing direct sunlight from entering and reducing the impact of ambient light intensity on fluorescence detection. Furthermore, the combination of a high-pressure chamber and a negative-pressure chamber allows for rapid extraction of liquid into the storage chamber for fluorescence detection and quick drainage, further improving detection efficiency. The high-pressure and negative-pressure chambers, located on either side of the storage chamber, also provide thermal insulation. The short liquid extraction and drainage time prevents prolonged sunlight exposure from causing internal temperature rise in the storage chamber, reducing the impact of temperature increases on detection results. Simultaneously, the generation of water vapor ensures the transparency of the protective plate, further guaranteeing the accuracy of fluorescence detection results. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a flowchart of the fluorescence detection process of the present invention.

[0034] Figure 2 This is a three-dimensional structural diagram of the environmental monitoring device for resource assessment according to the present invention.

[0035] Figure 3 For the present invention Figure 2 A schematic diagram of the main structure.

[0036] Figure 4 For the present invention Figure 2 A side view structural diagram.

[0037] Figure 5 For the present invention Figure 2 A top-view structural diagram.

[0038] Figure 6 For the present invention Figure 2 A schematic diagram of the structure viewed from below.

[0039] Figure 7 For the present invention Figure 4 A schematic diagram of the AA-direction cross-section structure.

[0040] Figure 8 For the present invention Figure 7 A magnified structural diagram at point B.

[0041] Figure 9 For the present invention Figure 7 A magnified structural diagram at point C.

[0042] In the figure: 100, solar power supply system; 110, adjusting support; 120, solar panel; 200, positioning support; 300, monitoring platform; 310, detection chamber; 311, protection plate; 320, high-pressure chamber; 321, high-pressure pipeline; 322, first electromagnetic valve; 323, blowing nozzle; 330, storage chamber; 331, liquid discharge pipeline; 340, negative pressure chamber; 341, negative pressure pipeline; 342, second electromagnetic valve; 400, identification camera; 500, gas controller; 510, stepped sleeve; 520, control layer plate; 530, air extraction assembly; 540, air compression assembly; 541, air compression telescopic rod; 542, air compression base; 543, elastic element; 544, air compression piston; 600, liquid inlet pipeline; 610, one-way valve group; 700, anchoring device; 710, anchoring rope; 720, counterweight; 800, fluorescence monitoring system; 810, fluorescence camera; 820, laser. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0044] Refer to the drawings Figure 2 - the drawings Figure 9 An environmental monitoring device for resource assessment, comprising:

[0045] Monitoring platform 300: as the carrier of the whole system, it provides a stable working platform; solar power supply system 100 is adopted to solve the power supply problem and support the overall migration of the monitoring device; solar panel 120 converts solar energy into electrical energy and stores it in the storage battery through the charging control circuit; the monitoring device body is designed considering different application scenarios, including a detachable small experimental monitoring device (convenient for transportation) and a monitoring device suitable for inland rivers and open waters.

[0046] Solar power supply system 100 includes adjusting support 110, through which the angle of inclination of solar panel 120 can be adjusted, and the local environmental sunshine range and angle can be adjusted to achieve full utilization of solar energy.

[0047] The solar panel described above adopts a polycrystalline silicon solar cell panel, main parameters, open circuit voltage 18v, working current: 0~277Ma, size: 165x220mm, weight 165g; the storage battery adopts a lithium battery group composed of 18650 battery cores in 3 series and 8 parallel, and the main parameters are as follows: voltage 12v, capacity 24000mAh, continuous working current ≤40A, and maximum instantaneous current 80A.

[0048] The water surface floating object intelligent identification camera 400: the intelligent identification camera is used for real-time monitoring of water surface floating objects and intelligent identification and analysis; an improved YOLOv5s algorithm is adopted, MobileNetV3 is used to replace the backbone network, and model parameters are reduced; the accuracy and speed requirements of real-time monitoring of sea surface garbage are met, the surrounding environment can be detected through the identification camera 400, it is judged whether it is suitable to sample the liquid in the surrounding environment, the normal sampling of the overall structure is ensured, and the detection data is increased, the accuracy of environmental monitoring is improved.

[0049] The sonar system: the sonar developed in the present study is a 83khz / 200khz dual-frequency vertical sonar, because the sonar has an audio pulse emission circuit, it will bring strong noise interference, this part needs to strengthen the anti-interference design; the system uses STM32F10 series chip as the main control circuit, BL8568CB5ATR33 as the main control circuit voltage reduction chip, the chip uses series voltage reduction method, has the function of filtering noise interference; and through the measures of strengthening power filter and the like, the interference noise brought by the sonar emission circuit is reduced.

[0050] The environmental data monitoring system: the environmental data monitoring system comprises a water flow sensor, a temperature sensor, a dissolved oxygen sensor and a humidity sensor, which respectively monitor the environmental parameters such as seawater flow direction, flow rate, environmental temperature, sea surface temperature, dissolved oxygen and sea surface humidity.

[0051] The fluorescence monitoring system 800 for monitoring the concentration of chlorophyll a: for real-time monitoring of water body chlorophyll a concentration, and evaluating the degree of water body eutrophication; based on the principle of laser-induced fluorescence, emitting laser to excite chlorophyll a to produce fluorescence; using light filters with transmission wavelengths of 400-532nm and 600-1100nm respectively to reduce interference of other wavelengths; combining a multi-parameter LSTM prediction model to predict the trend of chlorophyll a concentration, a laser 820 and a visible light sensor optical element cavity that are independent of each other are designed to avoid interference of the emitting strong laser with the receiving part; the spectral sensor is used to collect light intensity data of each waveband in the field of view.

[0052] The chlorophyll concentration monitoring is performed by using the fluorescence monitoring system 800, which comprises a float, a sheet metal support, a laser 820, a fluorescence camera 810, a structural diagram of the laser, and the laser 820 comprises an optical cabin sealing cover, a spectral sensor filter, a spectral sensor, a shell, a tail cabin sealing cover, a laser light source filter, a laser head, a laser head heat dissipation system, a circuit board, a mounting bracket, and a sea cable joint.

[0053] As shown in Figure 1 The overall monitoring process of the fluorescence monitoring system 800 includes device deployment, the water body fluorescence monitoring system 800 is deployed into the monitoring platform 300 for image acquisition, then image processing is performed, the laser wavelength, filter parameters, and correction coefficient of the water body chlorophyll a concentration monitoring instrument are configured, brightness analysis is performed, and finally the corresponding concentration is calculated according to the result of the brightness analysis.

[0054] It is important to note here that the monitoring platform 300 is put into the predetermined water body to detect the chlorophyll a in the surrounding environment in real time. The monitoring platform 300 can be placed on the surface of the water body for a long time, and continuous acquisition can be achieved within a certain time without the need for personnel to go back and forth to the predetermined area, greatly improving the efficiency and safety of detection.

[0055] The monitoring platform 300 is made of shading material, and the water body is extracted into the monitoring platform 300 for detection during the detection process, which can reduce the influence of strong sunlight on the optical detection of the laser 820, improve the accuracy and detection range of the optical detection of the laser 820, and improve the efficiency of the optical detection.

[0056] After the monitoring platform 300 is put into the predetermined water surface, the liquid in the water body is sampled and extracted into the monitoring platform 300. The fluorescence camera 810 and the laser 820 are located at the upper end of the monitoring platform 300, and the fluorescence camera 810 and the laser 820 are arranged downward. The sampled liquid is located at the bottom of the fluorescence camera 810. Based on the principle of laser-induced fluorescence, the laser 820 emits laser of a predetermined wavelength to excite chlorophyll a to produce fluorescence, and the fluorescence camera 810 captures the fluorescence image of the water body. After the image is decomposed into RGB single-color channel images, the brightness of different channels is compared with the positive correlation between the chlorophyll concentration, and then the chlorophyll content can be quickly and accurately measured by measuring the image brightness. At the same time, the image brightness difference of different regions of the image can directly reflect the two-dimensional distribution of chlorophyll.

[0057] After the detection is completed, the liquid in the monitoring platform 300 is discharged for subsequent sampling and detection.

[0058] The above detection operation can be repeated to continuously detect the chlorophyll a concentration in the water body within a certain period of time; at the same time, the monitoring platform 300 will drift to different positions under the action of waves, thereby realizing the detection of the chlorophyll a concentration in the water body at different positions within a certain range.

[0059] The monitoring platform 300 herein includes a detection chamber 310 for accommodating the fluorescence monitoring system 800, and further includes a storage chamber 330 for accommodating the sampled liquid, the storage chamber 330 being located at the lower end of the detection chamber 310, the bottom of the storage chamber 330 being contracted to concentrate the sampled liquid at the position below the detection chamber 310, and the fluorescence monitoring system 800 being used for efficient fluorescence detection of the sampled liquid in the storage chamber 330.

[0060] It should be noted that the bottom of the detection chamber 310 is made of a high-transparency protection plate 311, which can ensure that the laser emitted by the laser 820 can pass through, and at the same time, the excited fluorescence can be high-definition filmed through the laser 820 to ensure the accuracy of the detection results. The protection plate 311 is sealed and fixed to the outside to prevent water vapor from leaking into the fluorescence monitoring system 800 and affecting the long-term normal detection of the fluorescence monitoring system 800.

[0061] The liquid inlet pipeline 600 is vertically arranged and extends along the vertical direction, the upper end of the liquid inlet pipeline 600 extends into the storage chamber 330, and the liquid in the water body can be transported into the storage chamber 330 for concentration, which is convenient for subsequent fluorescence detection.

[0062] In order to realize the extraction of the liquid, a negative pressure chamber 340 is further arranged at the lower end of the storage chamber 330, the negative pressure chamber 340 is communicated with the storage chamber 330 through a negative pressure pipeline 341, a second electromagnetic valve 342 is arranged in the negative pressure pipeline 341 for controlling the opening and closing of the inside of the negative pressure pipeline 341, and in the process of sampling the water body, the negative pressure chamber 340 is first extracted to a state of negative pressure, and then the second electromagnetic valve 342 is opened. Under the action of negative pressure, the pressure in the storage chamber 330 can be reduced, the liquid in the water body is extruded by atmospheric pressure and enters the storage chamber 330 through the liquid inlet pipeline 600, and the sampling collection is realized.

[0063] The negative pressure chamber 340 herein is annular, which can form a larger chamber and rapidly extract a predetermined volume of liquid at one time, compared with the traditional continuous extraction of a micro pump, the extraction time can be shortened, and the gas in the negative pressure chamber 340 can be extracted to form negative pressure during the detection process, and then rapid extraction is performed.

[0064] On the other hand, the annular negative pressure chamber 340 can form a heat insulation protection barrier at the bottom of the storage chamber 330, which can reduce the influence of heat transfer on the temperature of the liquid in the storage chamber 330 during the detection process, and further ensure the accuracy of the detection results.

[0065] It should be noted that the height of the top of the negative pressure pipeline 341 is greater than the height of the top of the liquid inlet pipeline 600, thereby avoiding the liquid extracted in the liquid inlet pipeline 600 from entering the negative pressure chamber 340, and ensuring the normal operation of the continuous negative pressure extraction of the negative pressure chamber 340; at the same time, the liquid inlet pipeline 600 is internally provided with a one-way valve group 610, and the one-way valve group 610 can ensure that the liquid in the water body unidirectionally enters the storage chamber 330, thereby avoiding the reverse flow of the liquid from affecting the detection and the extraction of the liquid.

[0066] After the detection is completed, in order to realize the discharge of the liquid in the storage chamber 330, a high-pressure chamber 320 is arranged at the upper end of the storage chamber 330, the high-pressure chamber 320 is in communication with the storage chamber 330 through a high-pressure pipeline 321, a first electromagnetic valve 322 is arranged in the high-pressure pipeline 321 for controlling the conduction state of the high-pressure pipeline 321, before the water body fluorescence detection, the gas is continuously pumped into the high-pressure chamber 320, and the high-pressure chamber 320 is controlled to be in a high-pressure state, after the fluorescence detection is completed, the second electromagnetic valve 342 is closed first, and then the first electromagnetic valve 322 is opened, due to the limitation of the one-way valve group 610, the liquid in the storage chamber 330 can be continuously squeezed out, and the discharge of the liquid is realized.

[0067] A liquid discharge pipeline 331 is mounted on the inner wall of the storage chamber 330, the liquid discharge pipeline 331 is arranged in a bent manner, a first side of the liquid discharge pipeline 331 is located inside the storage chamber 330, the first side of the liquid discharge pipeline 331 extends to the bottom position of the storage chamber 330, and a second side of the liquid discharge pipeline 331 is located outside, after the pressure in the storage chamber 330 increases, the liquid at the bottom is discharged through the liquid discharge pipeline 331, and preparation is made for subsequent detection.

[0068] The one-way valve group 610 is also arranged in the liquid discharge pipeline 331, which can prevent the liquid outside from entering the storage chamber 330 in the reverse direction, and ensure the normal operation of the liquid negative pressure sampling and high-pressure discharge.

[0069] The second side of the liquid discharge pipeline 331 is preferably arranged towards the surface of the identification camera 400, the pressure liquid discharged through the liquid discharge pipeline 331 can clean the surface of the identification camera 400, avoid the continuous accumulation of water algae and sundries, and facilitate the identification camera 400 to continuously and efficiently detect the surrounding environment and give efficient feedback to the remote detection personnel.

[0070] The high-pressure chamber 320 is also annular and arranged above the storage chamber 330, which can also form a heat-insulating protective barrier outside the storage chamber 330, thereby avoiding the direct sunlight from shining on the storage chamber 330, and avoiding the continuous temperature rise of the storage chamber 330 from affecting the detection result.

[0071] The high-pressure chamber 320 here is continuously irradiated by the sun, and the temperature can continuously rise, and the high-pressure gas inside can be cooled by gas insulation, and under the continuous rise of the air temperature, the air pressure in the high-pressure chamber 320 can continuously rise, facilitating the discharge of the liquid in the storage chamber 330.

[0072] The bottom of the liquid discharge pipeline 331 here is communicated with the bent air blowing nozzle 323, the end of the air blowing nozzle 323 is directed towards the protective plate 311, and during the discharge of the pressure gas in the high-pressure chamber 320, the blown gas can be directed towards the protective plate 311 to clean and dry the surface of the protective plate 311, avoiding water vapor or pollutants from adhering to the surface of the protective plate 311, affecting the laser excitation of the inner laser 820 and the fluorescence detection of the fluorescence camera 810; and, under the sunlight irradiation during the day, the internal air temperature of the high-pressure chamber 320 continuously rises, the temperature of the blown gas is relatively high, and the relatively hot blown gas can quickly dry the surface of the protective plate 311, reducing the evaporation of water vapor to the bottom of the protective plate 311 during the day, and at the same time, a drying assembly can be installed in the air blowing nozzle 323 to dry the pressure gas blown out of the high-pressure pipeline 321, further improving the cleaning and drying effect of the blown pressure gas.

[0073] The first electromagnetic valve 322 is arranged in the high-pressure pipeline 321, the first electromagnetic valve 322, the second electromagnetic valve 342 and the fluorescence monitoring system 800 here are electrically connected, the first electromagnetic valve 322 is first controlled to be closed by the second electromagnetic valve 342, and the liquid of the environmental water body is sampled and extracted into the storage chamber 330 by using negative pressure; then the fluorescence monitoring system 800 is used to detect the chlorophyll a in the water body, and after the relevant information signal is transmitted to the terminal, the second electromagnetic valve 342 is controlled to be closed, and the first electromagnetic valve 322 is then opened, the pressure gas in the high-pressure chamber 320 is used to increase the air pressure in the storage chamber 330, and the sampled liquid in the storage chamber 330 after detection is discharged, facilitating subsequent sampling and detection.

[0074] The high-pressure environment in the high-pressure chamber 320 and the negative pressure environment in the negative pressure chamber 340 can be pumped by a separate pump body to pump gas or extract gas, and before detection, the gas is extracted to control the negative pressure chamber 340 to be in a negative pressure state, and before detection is completed, the gas is continuously pumped into the high-pressure chamber 320 to control the high-pressure chamber 320 to be in a high-pressure state, realizing the sampling and discharge of the liquid.

[0075] The traditional use of pump body to realize negative pressure, high pressure control needs to provide additional battery and related pump body and controller components, not only increases the volume of structural arrangement, increases the overall mass, increases the failure rate; In the process of detection also increases the loss of electrical energy, completely rely on solar power supply system 100 for power supply, reduces the frequency of sampling detection, especially in the detection environment for a long time lack of sunlight, causing the fluorescence monitoring system 800 detection of long time stagnation.

[0076] In order to solve the above problems, the gas controller 500 is installed at the lower end of the monitoring platform 300, which can automatically realize the extraction of negative pressure and the formation of high pressure by using the waves on the water surface, without additional power consumption, the overall structure control is stable, the failure rate is low, and it can be used continuously for a long time. At the same time, the overall structure is arranged at the bottom position, which does not occupy additional volume space, and the position at the bottom can improve the stability of the overall structure, especially in the case of large waves, to ensure the normal operation of fluorescence detection.

[0077] Specifically, the gas controller 500 includes a stepped sleeve 510 and a control layer plate 520, which are slidingly connected between the stepped sleeve 510 and the control layer plate 520. The gas extraction assembly 530 and the gas compression assembly 540 are installed on the control layer plate 520 above the stepped sleeve 510. The anchor device 700 is bolted to the lower end of the control layer plate 520. In the case of continuous waves on the water surface, the monitoring platform 300 drives the overall structure to move up and down, and the anchor device 700 is in a relatively stable state. Because the gas extraction assembly 530 and the gas compression assembly 540 have the function of pulling the control layer plate 520 to reset upward, the control layer plate 520 can move up and down periodically in the continuous waves. During the periodic up and down movement of the control layer plate 520, the gas extraction assembly 530 and the gas compression assembly 540 can be periodically squeezed and pulled, thereby realizing the negative pressure extraction and high pressure pumping of gas.

[0078] The gas extraction assembly 530 and the gas compression assembly 540 are connected with two built-in one-way valve pump gas pipelines on both sides. The first pump gas pipeline of the gas extraction assembly 530 is connected with the negative pressure chamber 340, and the second pump gas pipeline of the gas extraction assembly 530 can extend upward to the air environment at the top. During the periodic compression and expansion of the control layer plate 520 driving the gas extraction assembly 530, under the action of the one-way valve, the gas in the negative pressure chamber 340 can be continuously extracted, and the negative pressure state in the negative pressure chamber 340 can be controlled, to prepare for subsequent extraction of liquid.

[0079] The first pump air pipe of the air compression assembly 540 is in communication with the high-pressure chamber 320, and the second pump air pipe of the air compression assembly 540 also extends upward to the air environment at the top, and in the process of periodic compression and expansion of the air compression assembly 540 driven by the control layer plate 520, the gas in the environment can be continuously pumped into the high-pressure chamber 320 under the action of the one-way valve, so as to control the high-pressure state in the high-pressure chamber 320 and prepare for subsequent extrusion discharge of the liquid in the storage chamber 330.

[0080] It should be further pointed out that the high-pressure chamber 320 and the negative pressure chamber 340 are both in communication with pressure relief valves, and the directions of pressure relief of the two pressure relief valves are opposite. The pressure relief valve arranged in the high-pressure chamber 320 can avoid continuous increase of the air pressure in the high-pressure chamber 320, avoid influence of the structure of the high-pressure chamber 320 and the air compression assembly 540, avoid surface damage of the high-pressure chamber 320 due to excessive pressure, and avoid the air compression assembly 540 being unable to elastically retract due to excessive pressure, so as to affect high-pressure pumping and negative pressure air extraction.

[0081] The pressure relief valve in communication with the negative pressure chamber 340 is arranged to avoid excessive vacuum in the negative pressure chamber 340, avoid excessive collapse of the negative pressure chamber 340, and avoid the air extraction assembly 530 being unable to elastically reset, so as to affect subsequent negative pressure extraction and high-pressure pumping.

[0082] The air compression assembly 540 can be selected as an elastic telescopic rod, and the air compression assembly 540 includes an air compression telescopic rod 541, an air compression base 542, an elastic element 543 and an air compression piston 544. The air compression telescopic rod 541 penetrates to the outside and is fixedly connected with the control layer plate 520. The elastic element 543 can extrude the air compression piston 544 and push the air compression piston 544 to have a tendency to move upward. The air extraction assembly 530 is selected as an annular elastic air bag and is located between the air compression assembly 540 and the control layer plate 520. The air extraction assembly 530 is sleeved outside the air compression telescopic rod 541. Through the above structure design, the internal structural volume can be fully utilized, the related structure can be simplified, and the effect of negative pressure air extraction and high-pressure air pumping can be improved.

[0083] The anchoring device 700 includes an anchoring rope 710 and a counterweight 720. The first end of the anchoring rope 710 is bolted with the bottom of the control layer plate 520, and the second end is bolted with the counterweight 720. The anchoring device 700 can ensure the stability of the overall structure at the bottom.

[0084] In addition, the solar power supply system 100 can install the solar cell panel 120 by adjusting the support 110, and the positioning support 200 can be used to assist in positioning the related equipment.

[0085] Communication module: used for transmitting the collected data to the host computer system; adopts Beidou-3 and 4G communication modes, intelligently selects according to signal coverage; uses RD05W3035G3 Beidou-3 communication module of Ruihui Information Technology Co., Ltd. or XM1302E module of Jiangsu Xindian Technology Co., Ltd.; establishes an application layer communication protocol algorithm to improve the reliability of data communication; uploads data to the manufacturer's server through the 4G module, and then obtains data from the manufacturer's server through the network.

[0086] Control system: used for controlling the workflow of the whole system to realize intelligent and efficient management; based on STM32L052K8T6 chip, controls the operation of each module; has fault self-diagnosis and repair functions to improve system stability; for example, sensor independent power supply design, when the sensor fails, the power supply can be individually cut off to avoid expanding the failure or excessive power consumption; the main timer periodically wakes up for state detection, and the external interrupt is used to respond to external instructions in time.

[0087] Host computer software system: used for data storage, analysis, display and remote control; realizes data receiving, processing, storage, analysis, display and remote control functions; a map of the monitoring device can display the location and basic information of the monitoring device; adopts B / S structure, J2EE architecture, middleware and WEB technology; can collect, store, analyze and display monitoring device data.

[0088] The system also adds multi-parameter detection function of water quality, including water temperature, turbidity, pH value, chlorophyll, salinity and heavy metal detection, the specific content is as follows:

[0089] Water temperature sensor

[0090] High-precision water temperature sensor is installed at a suitable position of the buoy platform for real-time monitoring of water temperature. The sensor has high precision and fast response characteristics, can accurately measure the temperature change of water body at different depths, and can effectively capture the slight change of water temperature, providing important temperature data support for the study of water ecological environment and resource assessment.

[0091] Turbidity sensor

[0092] Scattering light type turbidity sensor is used for water turbidity detection; the sensor is based on infrared scattering principle, which determines the turbidity value by measuring the scattering degree of light by suspended particles in water, and can accurately reflect the turbidity degree of water body, which is of great significance for judging the pollution condition and suspended matter content of water body; when designing the buoy, appropriate installation position is reserved for the turbidity sensor to ensure accurate measurement of water turbidity.

[0093] pH sensor

[0094] The glass electrode type pH sensor is installed for detecting the acidity and alkalinity of the water body. The glass electrode of the sensor can react with hydrogen ions in the water body to produce a corresponding potential change. By measuring the potential change and converting it through a circuit, an accurate pH value can be obtained. During installation, attention should be paid to the protection and calibration of the sensor's electrode to ensure the accuracy and reliability of the measurement results.

[0095] Chlorophyll detection (enhanced part)

[0096] Based on the original chlorophyll monitoring system, further optimization and enhancement are carried out. In addition to using the laser-induced fluorescence principle and ambient light correction algorithm to monitor the concentration of chlorophyll a in water in real time, the recognition ability of different types of chlorophyll and algae is increased. By adding a multi-band spectral sensor, the absorption and emission characteristics of different chlorophyll and algae at specific spectral bands are detected and analyzed, which can more accurately evaluate the degree of water eutrophication and the structure of algal community. At the same time, combined with big data analysis and machine learning algorithm, the trend of chlorophyll concentration and algae change can be more accurately predicted.

[0097] Salinity sensor

[0098] The conductivity type salinity sensor is installed for measuring the salinity of the water body. The sensor indirectly calculates the salinity value by measuring the conductivity of the water body. In the design of the buoy, it is necessary to ensure that the salinity sensor is in full contact with the water body to avoid measurement errors caused by improper installation position. At the same time, considering that the salinity sensor may be affected by temperature and other ions, temperature compensation and ion correction algorithms are used in the data processing process to improve the accuracy of salinity measurement.

[0099] Heavy metal detection sensor

[0100] Electrochemical sensors are used to detect heavy metals in water, including lead (Pb), mercury (Hg), cadmium (Cd), chromium (Cr), arsenic (As), and other common heavy metal pollutants.

[0101] Sonar and underwater video monitoring system

[0102] Through the sonar and underwater video monitoring system, obstacles under the water body and high-definition photos related to the water body can be detected, which can provide real-time feedback on the water body and correspond the sample detection samples with the surrounding environment at the time of sampling, so as to obtain more data and facilitate the work of later staff in water detection work.

[0103] To scientifically evaluate the distribution and diversity of biological resources in water, modern aquatic ecological surveys often use a combination of sonar technology and underwater video monitoring systems. Sonar systems can efficiently detect the density, spatial distribution, and individual size of biological clusters in water bodies by emitting sound waves and receiving echo signals. This technology is particularly suitable for assessing the resource quantity and habitat characteristics of swimming organisms such as fish. After algorithmic analysis of the detection data, a quantitative estimation model of biomass can be generated.

[0104] At the same time, underwater high-definition video monitoring systems can perform close-range visual observation of aquatic organisms in the target area, directly obtaining information on biological morphology, behavior, and community structure. Through species identification and counting using AI technology on the buoy, data transmission volume can be significantly reduced, or image data can be directly transmitted to shore for manual identification. Researchers can accurately identify biological species, record rare species, and verify the accuracy of sonar data.

[0105] The combined application of these two technologies not only compensates for the limitations of a single method, with sonar covering macro-scale and video providing micro-scale verification, but also builds a comprehensive evaluation system of "resource quantity-species composition" through data fusion, providing high-precision scientific basis for fishery resource management, ecological protection, and biodiversity research.

[0106] In summary, the present application is a relatively complete fishery resource monitoring device. Through this environmental detection device, a complete monitoring buoy can be achieved for water surface conditions (floating objects, water color), weather (temperature, humidity, atmospheric pressure, rainfall, sunlight), underwater environment (dissolved oxygen, ammonia nitrogen, pH, salinity, turbidity), and aquatic organisms (through sonar and underwater cameras).

[0107] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the present application, but are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent substitutions for some technical features. Such modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An environmental monitoring device for resource assessment, characterized by, The utility model relates to a monitoring platform (300) is made of shading material and is internally hollow, and the inside is formed with detection chamber (310) and storage chamber (330), detection chamber (310) is located storage chamber (330) upper end position and exists protection board (311) separation, storage chamber (330) is communicated with the liquid outlet pipeline (331) of the liquid outlet pipeline (331) of the bending arrangement for sampling liquid outflow, still include the negative pressure chamber (340) of setting in storage chamber (330) bottom and the high pressure chamber (320) of setting in storage chamber (330) top, negative pressure chamber (340) and storage chamber (330) pass through the negative pressure pipeline (341) of built-in second electromagnetic valve (342) communication, high pressure chamber (320) and storage chamber (330) pass through the high pressure pipeline (321) of built-in first electromagnetic valve (322) communication, The fluorescence monitoring system (800) is arranged in the detection chamber (310) and includes a fluorescence camera (810) and a laser (820) arranged towards the storage chamber (330); The liquid inlet pipeline (600) is vertically arranged and communicated with the storage chamber (330) for flowing the sampling liquid into the storage chamber (330), and the liquid inlet pipeline (600) and the liquid outlet pipeline (331) are both provided with a one-way valve group (610); The first electromagnetic valve (322), the second electromagnetic valve (342) and the fluorescence monitoring system (800) are electrically connected. The negative pressure chamber (340) and the high pressure chamber (320) are both annular, and the high pressure chamber (320) and the negative pressure chamber (340) are respectively located on the upper and lower sides of the storage chamber (330); and a gas controller (500) is arranged at the lower end of the monitoring platform (300). The bottom of the high pressure pipeline (321) is communicated with a blowing nozzle (323) which is designed to be bent towards the protection board (311).

2. The environmental monitoring device for resource assessment according to claim 1, wherein, The first side of the liquid outlet pipeline (331) extends to the bottom of the storage chamber (330), and the second side of the liquid outlet pipeline (331) is arranged towards the surface of the identification camera (400).

3. The environmental monitoring device for resource assessment according to claim 1, wherein, The gas controller (500) includes a stepped sleeve (510), the inner wall of the stepped sleeve (510) is slidably connected with a control layer plate (520), the control layer plate (520) is provided with a suction assembly (530) and a compression assembly (540) with reset elasticity between the upper end of the control layer plate (520) and the inner wall of the stepped sleeve (510), the suction assembly (530) is communicated with the negative pressure chamber (340), the compression assembly (540) is communicated with the high pressure chamber (320), and the lower end of the control layer plate (520) is bolted with an anchoring device (700).

4. The environmental monitoring device for resource assessment according to claim 1, wherein, ​ 5. The environmental monitoring device for resource assessment according to claim 4, wherein, The air compression assembly (540) is a telescopic rod, the air compression assembly (540) comprises a relatively fixed air compression base (542), the air compression base (542) is internally sealed and slidably connected with an air compression piston (544), the air compression piston (544) is fixed with an air compression telescopic rod (541) on the side wall, the air compression telescopic rod (541) penetrates through the air compression base (542) and is fixedly connected with the control layer plate (520), and the air extraction assembly (530) is an annular elastic air bag, the air extraction assembly (530) is sleeved outside the air compression telescopic rod (541).

6. The environmental monitoring device for resource assessment according to claim 4, wherein, The high-pressure chamber (320) and the negative pressure chamber (340) are communicated with pressure relief valve bodies, and the directions of pressure relief of the two pressure relief valve bodies are opposite.

7. The environmental monitoring device for resource assessment according to claim 4, wherein, The anchoring device (700) comprises an anchoring rope (710) and a counterweight (720), and the anchoring rope (710) is bolted at the first end to the bottom of the control layer plate (520).

8. An environmental monitoring method for resource assessment, characterized by, The environmental monitoring device for resource assessment according to any one of claims 1-7 comprises the following steps: S1, the assembled environmental monitoring device for resource assessment is put into the surface of a predetermined water body; S2, the first electromagnetic valve (322) is closed by controlling the second electromagnetic valve (342) to be conductive, so that the liquid of the environmental water body can be sampled and extracted into the storage chamber (330) by using negative pressure; S3, then the chlorophyll a in the water body is detected by using the fluorescence monitoring system (800), the laser (820) emits a laser of a predetermined projection wavelength towards the storage chamber (330), the fluorescence camera (810) collects and processes images of the fluorescence in the storage chamber (330), and the concentration of the chlorophyll a in the sampled water body is calculated by brightness analysis; S4, after the relevant information signal is transmitted to the terminal after the detection is completed, the second electromagnetic valve (342) is closed, the first electromagnetic valve (322) is then opened, the pressure gas in the high-pressure chamber (320) is used to increase the air pressure in the storage chamber (330), and the sampled liquid in the storage chamber (330) after detection is discharged.

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