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92 results about "River management" patented technology

River management range efficient demarcation method based on multi-source data fusion and spatial characteristic difference

The invention provides an efficient riverway management range demarcation method based on multi-source data fusion and spatial characteristic difference, and the method comprises the steps: constructing a whole-process technical system of law and regulation analysis, multi-source data fusion, characteristic parameter extraction and dynamic optimization, integrating the multi-source data of satellite remote sensing, unmanned aerial vehicle aerial survey, hydrological monitoring, etc. Key parameters such as a central line, a gradient and a curvature of a river channel are extracted by utilizing an intelligent algorithm, and accurate delimiting of a management line is realized by combining design flood level calculation and Kriging interpolation optimization. The invention aims to break through the limitation of the traditional method, improve the demarcation efficiency and precision, provide standardized and executable technical support for scientific management of complex rivers, and assist the cooperative promotion of flood control safety and water resource protection.
Owner:CHINA THREE GORGES UNIV

River management-oriented multi-parameter water quality intelligent prediction method and system

The invention discloses a river management-oriented multi-parameter water quality intelligent prediction method and a river management-oriented multi-parameter water quality intelligent prediction system, relates to the technical field of environment monitoring and artificial intelligence, and particularly discloses a water quality intelligent prediction system and a water quality intelligent prediction method. According to the system, original water quality monitoring data is cleaned and repaired through the missing value filling module, so that the data integrity is ensured; performing deep feature extraction and fusion on the multi-parameter water quality data by using a convolutional neural network (CNN) to generate high-dimensional feature mapping; then, a bidirectional long-short-term memory network (Bi-LSTM) model is adopted to carry out forward and backward bidirectional learning on the extracted time sequence features, and a complex dynamic rule and a long-term dependency relationship of water quality parameter changes are accurately captured; and finally, an optimized loss function module is introduced to minimize a training error, so that the prediction accuracy is further improved. According to the method, the problems of insufficient precision, high model calculation complexity and weak multi-parameter collaborative prediction capability caused by data missing in the existing river water quality prediction technology are solved.
Owner:POWER CHINA KUNMING ENG CORP LTD +1

River channel reach morphological feature recognition method based on remote sensing

The invention belongs to the technical field of river reach feature recognition, and particularly relates to a river reach morphological feature recognition method based on remote sensing. Through multi-source remote sensing data fusion analysis, accurate recognition and dynamic monitoring of river channel morphological characteristics are achieved, scientificity and efficiency of river channel treatment are improved, refined data support is provided for river channel ecological restoration and management through river reach classification and construction of a morphological module, and the river channel ecological restoration and management method is suitable for river channel ecological restoration and management. In this way, the intelligent and datamation requirements of river regulation decision making are supported, meanwhile, effective prediction of the river form evolution trend is achieved through time sequence analysis of the repair node and the current node, verification and evaluation of the confidence degree are conducted after the prediction result is output, and therefore the reliability and applicability of the prediction result are ensured, and the prediction efficiency is improved. The prediction result can provide corresponding data support for a river regulation project, the river form change trend can be pre-judged in advance, and a scientific basis is provided for flood control and disaster reduction and water resource management.
Owner:CHINA CONSTR WATER ENVIRONMENTAL PROTECTION CO LTD

River channel self-adaptive desilting system and method based on intelligent water level sensing

ActiveCN121956598AAccurately restore designed water passing capacityImprove the accuracy of dredging operationsWater resource protectionAdaptive controlSensing dataTerrain
The invention relates to the technical field of riverway desilting, in particular to a riverway self-adaptive desilting system and method based on intelligent water level perception, and the method is executed by a central control unit and comprises the four steps of model construction and benchmark calibration, real-time monitoring and siltation diagnosis, precise survey and operation planning and closed-loop execution and model synchronization. The system comprises a central control unit, a water level intelligent sensing array, terrain scanning equipment and dredging machinery, according to the method, the three-dimensional digital riverbed model is constructed, the sedimentation state is dynamically judged in combination with the water level sensing data, an accurate desilting operation scheme is generated, and operation closed-loop control is achieved. According to the method, navigation and ecological riverway dredging requirements are considered, the dredging precision and automation level are improved, the operation cost is reduced, intelligent transformation of riverway management is promoted, and an efficient solution is provided for long-acting treatment of the riverway.
Owner:FUJIAN UNIV OF TECH ENG DESIGN CO LTD +2

Sludge dewatering device for ecological management of water conservancy river channel

The invention provides a sludge dewatering device for water conservancy river ecological management, and relates to the technical field of water conservancy project and river ecological management. The mounting bottom plate is mounted in ship body equipment, and the supporting frame is fixedly mounted at the upper end of the mounting bottom plate; the upper end of the supporting frame is of an inclined face structure inclining towards the lower portion of one side, and an inclined frame is fixedly installed on the inclined face structure of the supporting frame. A dewatering box with an upward opening end is fixedly mounted at the upper end of the inclined frame; a floating platform is arranged on one side of the mounting bottom plate and located in the water surface. A sludge mixing box is mounted at the upper end of the floating platform. The floating platform is in sliding fit with a hanging pin of the supporting frame through a movable strip hole in a connecting arm and is matched with a stable row, extending into water, at the bottom of the floating platform, so that the floating platform can adapt to water surface fluctuation, wind wave impact is effectively buffered, and a dynamic and stable working platform is provided for a sludge pumping box and a sludge mixing box; and continuity and reliability of mud pumping and mixing operation are ensured.
Owner:徐州市供排水管理中心

A sewage filtration device and treatment method for river management

This invention discloses a sewage filtration device and treatment method for river management, relating to the field of sewage filtration technology. It includes an outer casing, a filtration component, a collection component, and a chemical treatment component. The filtration component includes a filter belt, and the collection component includes a collection box with several connecting pipes at its bottom. A switching mechanism is located inside the outer casing. The chemical treatment component includes a water pump, a first liquid tank, a second liquid tank, and a chemical tank. A first control mechanism is located inside the second liquid tank, and a second control mechanism is located inside the first liquid tank. This invention uses several collection boxes mounted on a rotating shaft to facilitate automatic switching of the collection boxes. During switching, it facilitates the compression and dewatering of solid impurities inside the collection boxes. A dosing component allows for the automatic addition of chemicals to the second liquid tank, and an aerator ensures thorough mixing of the sewage and chemicals.
Owner:HYDROLOGICAL BUREAU OF YELLOW RIVER WATER CONSERVANCY COMMISSION

Intercepting type trash holding structure for river regulation

ActiveCN224133682Ustable floatingFloating, lifting and stableWater cleaningRiver routingRiver management
The utility model discloses an interception type trash holding structure for river regulation, and belongs to the technical field of river regulation, the technical scheme is that the interception type trash holding structure comprises a trash holding net, and a floating lifting assembly is arranged on the outer side of the trash holding net. The floating blocks on the two sides can enable the trash holding net to automatically adjust the height along with rising and falling of the water level by means of buoyancy, when the water level rises, the floating blocks drive the trash holding net to move upwards, garbage is prevented from crossing over the trash holding net, it is ensured that pollutants can be effectively intercepted all the time, and when the water level falls, the trash holding net also falls along with the trash holding net to continuously play an interception role. The connecting rods on the inner sides of the floating blocks are stably connected with the trash holding net, meanwhile, the floating blocks on the two sides of the trash holding net float more stably, pulleys in the guide grooves are matched with the guide rails, the trash holding net can be guided to ascend and descend stably, friction is reduced, the stability of the whole structure is enhanced, and the stability of the guide rails is improved through the balancing weight at the bottom. Therefore, the stability of the trash holding net in water is ensured.
Owner:HUBEI HAOLANG CONSTR ENG CO LTD

A river section form feature recognition method based on remote sensing

The present application belongs to the technical field of river section feature recognition, and particularly relates to a river section morphological feature recognition method based on remote sensing. The present application realizes accurate recognition and dynamic monitoring of river morphological features through multi-source remote sensing data fusion analysis, improves the scientificity and efficiency of river management, and provides fine data support for river ecological restoration and management through the construction of river section classification and morphological modules, thereby supporting the intelligentization and dataization needs of river management decisions. Meanwhile, through time sequence analysis of the repair node and the current node, the effective prediction of the river morphological evolution trend is realized, and after the prediction result is output, the confidence is also checked and evaluated, thereby ensuring the reliability and applicability of the prediction result, so that the prediction result can provide corresponding data support for river regulation engineering, can predict the river morphological change trend in advance, and also provides a scientific basis for flood control and disaster reduction and water resource management.
Owner:CHINA CONSTR WATER ENVIRONMENTAL PROTECTION CO LTD

Movable miniature ecological floating island

This utility model relates to the field of river management technology and discloses a movable micro ecological floating island, including a floating bed. Multiple planting tubes are movably connected vertically through the interior of the floating bed. A retaining ring is fixedly fitted onto the outside of each planting tube above the floating bed. Clamping mechanisms are provided on both the front and rear sides of the planting tubes on the upper surface of the floating bed. Positioning mechanisms are provided at the four corners of the upper surface of the floating bed. This utility model utilizes a pawl and ratchet locking design. After the positioning anchor sinks to the bottom of the water under gravity, releasing the pawl enables one-way self-locking of the rocker arm, effectively preventing the positioning rope from loosening and ensuring that the floating bed does not shift under water flow or wind force, ensuring stable and reliable positioning. Simultaneously, when moving the floating island, simply turning the rocker arm clockwise quickly retracts the positioning rope and anchor, making operation simple and quick, significantly improving the efficiency of floating island position adjustment and relocation.
Owner:QINGDAO YIGAO LINTONG FOREST RES & DEV CO LTD

Gravity retaining wall for river landscape

This utility model relates to the field of river management engineering technology, specifically to a gravity retaining wall for river landscape. It includes a base slab and a wall body. The water-facing side of the base slab is equipped with a toothed wall and pre-embedded U-shaped steel bars, connected to gabion cages by steel wire ropes to resist erosion. Pre-embedded stones on the top surface of the base slab enhance its interlocking with the wall body. The water-facing side of the wall body is faced with pebbles to enhance its aesthetics, and a planting groove is provided at the top for planting greenery. The wall body has a built-in dual drainage system: a first drainage pipe directs water from behind the wall into the planting groove for irrigation, and a second drainage pipe is dedicated to pressure relief drainage; both have a slope of 5%. This utility model integrates flood control, landscape, and ecological functions, solving the problems of poor water affinity and insufficient erosion resistance of traditional retaining walls.
Owner:ANHUI SURVEY & DESIGN INST OF WATER CONSERVANCY & HYDROPOWER

A riverbank purification barrier for river management

This utility model discloses a riverbank purification barrier for river management, comprising a main body of the embankment, a guide slope on the front side of the main body of the embankment, and multiple fixed seats uniformly fixedly connected to the guide slope. The fixed seats are configured in a V-shape, and two water-blocking mesh grooves are symmetrically installed on the fixed seats. Each of the two water-blocking mesh grooves is connected to a pushing mechanism. Multiple inclined slots are uniformly arranged on the fixed seats, and the multiple inclined slots are inclined downwards on the side away from the center surface of the fixed seats. Multiple inclined plates are fixedly connected to each of the two water-blocking mesh grooves, and the multiple inclined plates are respectively inserted into the interior of the multiple inclined slots. A collection box is set in the middle position of the two water-blocking mesh grooves, and a middle plate is set on the collection box. A middle slot is set in the middle position of the fixed seats, and the middle plate is inserted into the interior of the middle slot, which facilitates the disassembly and replacement of the water-blocking mesh grooves.
Owner:天津市津水建筑工程有限公司

River self-adaptive dredging system and method based on water level intelligent sensing

The present application relates to the technical field of river dredging, and especially discloses a river self-adaptive dredging system and method based on water level intelligent sensing, which is executed by a central control unit and comprises four steps of model construction and benchmark calibration, real-time monitoring and siltation diagnosis, accurate survey and operation planning, closed-loop execution and model synchronization; the system comprises a central control unit, a water level intelligent sensing array, a terrain scanning device and a dredging machine; the present application dynamically determines the siltation state by constructing a three-dimensional digital riverbed model in combination with water level sensing data, generates an accurate dredging operation scheme, and realizes closed-loop control of the operation; the present application takes into account the dredging needs of navigable and ecological rivers, improves the accuracy and automation level of dredging, reduces the operation cost, promotes the intelligent transformation of river management, and provides an efficient solution for long-term river management.
Owner:FUJIAN UNIV OF TECH ENG DESIGN CO LTD +2

Waterweed collecting and salvaging device for river regulation

The utility model relates to the technical field of aquatic plant salvaging, in particular to a river regulation aquatic plant collecting and salvaging device which comprises a ship body, a cockpit arranged on the ship body, a first conveying belt installed on the ship body and used for conveying aquatic plants, and a first rotary driver installed on the ship body and used for driving the first conveying belt to convey the aquatic plants. The cutting anti-winding mechanism is arranged on the ship body and used for preventing the aquatic plants from being wound and comprises a butt joint arrangement plate and a plurality of collection rotating pieces arranged on the butt joint arrangement plate and used for collecting and salvaging the aquatic plants; the waterweed collecting and salvaging device for river regulation further comprises a transmission driving mechanism which is arranged on the butt-joint arrangement plate and used for driving the collecting rotating piece to rotate in the forward direction and driving the cutting pieces to rotate in the reverse direction. According to the technical scheme, winding of aquatic plants is avoided through the transmission driving mechanism.
Owner:ZHOUSHAN CHAORUN CONSTR CO LTD

Drainage basin urban water system multivariate spatio-temporal data integration and topology analysis method based on graph database

The invention provides a watershed urban water system multivariate spatio-temporal data integration and topology analysis method based on a graph database. The watershed urban water system multivariate spatio-temporal data integration and topology analysis method comprises the steps of multivariate data integration, graph database construction, multi-source data hooking and topology analysis and data verification. Integrating meteorological monitoring, river pipe network monitoring, water supply and other multivariate data, and constructing a distributed database through space-time alignment and deep fusion; pipe network GIS data is converted into a graph database model, nodes represent entities such as inspection wells, and edges represent connection relations such as pipelines; the drainage partition and monitoring equipment data are hooked through the joint index to form a complete data network; and running a quality balance algorithm to verify the data, and outputting a pipe network health report. The method solves the problems of data islands, poor relevance and low topological analysis efficiency of a traditional relational database, supports efficient query of complex topological relations, is high in data fusion and verification capability, is suitable for urban drainage network, river management and comprehensive water environment treatment, and effectively improves the implementation effect of a large water environment treatment project.
Owner:CHINA THREE GORGES CORPORATION +1

Prefabricated block lifting equipment

The present application discloses a prefabricated block lifting device, which belongs to the field of river management. The device comprises a support frame and a lifting bracket arranged on the support frame, the support frame is provided with a winch for driving the lifting bracket to move, the support frame is provided with a plurality of first conveyor belts for arranging prefabricated blocks, a drive roller is rotatably mounted on the support frame, the first conveyor belt is wound around the drive roller, the support frame is provided with a push rod for pushing the prefabricated blocks on the first conveyor belt, the support frame is provided with a first drive assembly for driving the drive roller to rotate, the support frame is provided with a control assembly for controlling the first conveyor belt to stop running, and the support frame is provided with a second drive assembly for driving the push rod to move. The present application has the effect of improving the efficiency of prefabricated block transportation and binding.
Owner:ANHUI WATER CONSERVANCY DEV CO LTD

Outdoor water environment monitor for river management

The application discloses a kind of outdoor water environment monitors for river management, and it relates to water environment monitoring technical field.The floating pontoon is fixedly installed with the top surface of the surrounding frame, the inside of the floating pontoon is symmetrically rotatably connected with the connecting frame, and the surface of the connecting frame is provided with the first mounting bracket near one end.The connecting component structure is set, the user can choose whether to exchange position to operate photovoltaic panel, and it can be collected back to the inside of the floating pontoon when encountering bad weather to achieve the effect of protection, thereby prolonging the service life of the device, cooperating with the second mounting bracket component structure, the upper end of the device can be further protected, so that the device can remain stable in harsh environment, thereby facilitating long time for outdoor water environment detection, and the setting of the first mounting bracket and the surrounding frame can adjust the orientation of the photovoltaic panel and clean its surface when needed to ensure the solar power generation efficiency of photovoltaic.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Multi-source perception intelligent closed-loop water quality restoration system and control method thereof

The present application relates to the technical field of water quality restoration, and more particularly to a multi-source sensing intelligent closed-loop water quality restoration system and a control method thereof, which is suitable for river management, landscape water maintenance, industrial wastewater treatment and the like, and is particularly suitable for small and medium-sized water body restoration projects that need to dynamically respond to water quality changes. By means of multi-channel online monitoring, physicochemical index data and model organism activity data are obtained, combined with artificial sampling data, an evaluation model is used to comprehensively evaluate the water quality and grade the abnormality level; and according to the abnormality level, a graded restoration program is automatically triggered, and automatic backflow, automatic sample reservation and remote alarm are simultaneously executed, so as to realize closed-loop, accurate and efficient restoration of water quality and whole-process traceable management, improve restoration efficiency and reliability, and reduce the frequency of manual intervention.
Owner:ZHEJIANG TONGJI VOCATIONAL COLLEGE OF SCI & TECH

Microbial colonization membrane assembly for river regulation

The invention discloses a microorganism colonization membrane assembly for river regulation, and relates to the technical field of river regulation, the microorganism colonization membrane assembly comprises a mounting box with an opening at the upper end, two partition plates are fixedly mounted in the mounting box at intervals, and the two partition plates sequentially divide the mounting box into a microorganism enrichment area, a metabolism diffusion area and a fluid exchange area from front to back; the three regions are respectively filled with a microorganism colonization membrane, a fluid flow guide membrane and a honeycomb membrane, and the side wall of one side, far away from the partition plates, of the microorganism enrichment region and the two partition plates are respectively provided with water permeable holes through which water flows to pass; the surface of the microbial colonization membrane is provided with nano-scale villus-shaped secondary ripples. According to the microorganism colonization membrane assembly for river regulation, through cooperation of the biological anchor points and the chemotactic factor coating, the microorganism attachment efficiency (the survival rate is increased by 40% or above) and the impact load resistance are remarkably improved, and the problems that in traditional biological remediation, microorganism colonization is difficult, and activity is low are solved.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

A river side slope reinforcing structure and a construction method

This invention provides a riverbank slope reinforcement structure and construction method, relating to the field of river management and ecological engineering technology. The riverbank slope reinforcement structure includes multiple inverted trapezoidal frames, horizontal connecting beams, and a base of coarse sand and gravel and clay. The multiple inverted trapezoidal frames are arranged at equal intervals along the length of the river. Each inverted trapezoidal frame includes a base plate, two side walls, and a top plate. The horizontal connecting beams connect the multiple inverted trapezoidal frames sequentially, forming a vegetation planting area on both sides of the riverbank slope between the multiple inverted trapezoidal frames and the horizontal connecting beams. A coarse sand and gravel backfill structure is set between the base plates of two adjacent frames, and a clay layer fills the bottom of the river and the two sides of the riverbank slope. This riverbank slope reinforcement structure can ensure the stability of the riverbank slope reinforcement structure while reducing engineering costs; on the other hand, it can effectively green the riverbank environment and significantly improve the ecological landscape effect of the river.
Owner:ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE

High-efficiency flood prevention and water storage structure of bionic beaver "dam structure"

This invention discloses a biomimetic beaver dam structure for efficient flood control and water storage, belonging to the field of water conservancy engineering and disaster prevention technology. The structure mimics the tree-like interweaving and soil-filling mechanism of a beaver dam, achieving adaptive flood control, efficient water storage, and eco-friendliness. This invention achieves precise control of water storage performance through a water storage capacity calculation formula, making it suitable for small reservoirs, river management, flood control projects, and ecological restoration, solving the problems of high cost, ecological damage, and poor adaptability of traditional dams.
Owner:于世平

Riverway management ecological floating island device

This utility model relates to an ecological floating island device for river management, comprising: several floating plates and a limiting component; each floating plate has a cultivation trough for placing cultivation baskets, one end of which has a snap-fit ​​part along a first direction, and the other end has a connecting part that snaps into the snap-fit ​​part; the limiting component includes a locking rod and an adjusting member connected thereto, the adjusting member being installed in the mounting cavity of the floating plate, the locking rod passing through the snap-fit ​​part, and the connecting part having a corresponding locking groove; when the adjusting member slides along the first direction, it drives the locking rod to move along a second direction perpendicular to it, realizing the snap-fit ​​or separation of the locking rod and the locking groove. This utility model, by setting the cooperation between the snap-fit ​​part and the connecting part, combined with the cooperation between the locking rod and the locking groove in the limiting component, enables the floating plates to be quickly spliced ​​and separated without tools, improving installation efficiency and maintenance convenience. Furthermore, it avoids thread damage caused by frequent disassembly and assembly of traditional fasteners such as bolts, thereby extending service life.
Owner:CHONGQING CHANGJIANG SURVEY & DESIGN INST CO LTD

Unmanned aerial vehicle-based river management method and computer readable storage medium

The application discloses a river management method based on a UAV and a computer readable storage medium, and the method comprises the following steps: determining the visual field range corresponding to each shooting image respectively; determining the coordinate points located in the visual field range corresponding to each shooting image according to the geographic coordinates of each coordinate point in each management line and the visual field range corresponding to each shooting image, and determining the drawing set corresponding to each shooting image according to the coordinate points located in the visual field range corresponding to each shooting image respectively; calculating the image coordinates of each coordinate point in the drawing set in the corresponding shooting image according to the geographic coordinates of each coordinate point in the drawing set corresponding to each shooting image respectively; and drawing the management line in each shooting image according to the image coordinates of each coordinate point in the drawing set corresponding to each shooting image. The application can intuitively display the management range of the river management line in the shooting visual field, and is convenient for managing the river.
Owner:SICHUANG TECH CO LTD

Method for treating sewage sludge and river sediment

The invention provides a method for treating sewage sludge and river sediment, and relates to water treatment engineering and hydraulic engineering for treating river channels. According to the scheme, in the first aspect, the sewage sludge and river sediment treatment method comprises the following steps that sludge and sediment flowing in sewage and a river are intercepted, and the intercepted sludge and sediment are precipitated to a sewage discharging and sediment discharging channel on the lower side of the sewage and the river; on the second aspect, the sewage sludge and river sediment treatment system is characterized in that a conveying device is mounted in a sewage discharging and sediment discharging channel; the conveying device conveys the sludge and the sediment to one side along the length direction of the pollution discharge and sediment discharge channel; the conveying device can gradually lift sludge and silt out of a sewage and river system. According to the device, silt in a river can be cleaned for a long time, secondary utilization of the silt in the river is achieved, cost is saved, and economic benefits are improved. The device can also be used in sewage treatment and feed water treatment, and the sewage treatment capacity can be improved.
Owner:范学梁

Plain river network pollution path reverse tracking and tracing method and device and related equipment

The invention relates to the technical field of river management, in particular to a plain river network pollution path reverse tracking and tracing method and device and related equipment. The method comprises the following steps: detecting a first detection concentration of a target pollutant based on a target position, and determining the number of a plurality of virtual particles to be released and an initial particle concentration; releasing a plurality of virtual particles at the target position, and performing traceability tracking on the plurality of virtual particles based on a virtual river network corresponding to the target drainage basin, the target position and the initial particle concentration of each virtual particle to obtain particle traceability information, the particle traceability information comprises a termination position of each virtual particle when a traceability termination condition is satisfied, and a plurality of traceability positions of each virtual particle between the target position and the corresponding termination position; the traceability termination condition comprises that the particle concentration of the corresponding virtual particle is greater than a concentration threshold; and pollution path information is determined according to the particle traceability information. According to the invention, the accurate pollution path can be rapidly obtained.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY

Application of multifunctional slow-release microspheres cooperatively constructed based on double peroxides in water treatment

The invention relates to a preparation method of a sustained-release microsphere, which is constructed based on the synergistic combination of calcium peroxide (CaO2) and magnesium peroxide (MgO2), is used for consolidating the river regulation effect, and belongs to the technical field of environmental functional materials. Core components of the microspheres comprise CaO2 powder and MgO2 powder which are mixed according to the mass ratio of (4: 1)-(1: 1). The preparation method comprises the following steps: adding CaO2 and MgO2 composite powder into a disc granulator in batches by adopting a low-temperature dry-method rotary granulation process, regulating the rotating speed (20-40 rpm) and the temperature (25-50 DEG C) in stages, synchronously spraying a small amount of deionized water or other solutions as an adhesive, and controlling the humidity to be less than or equal to 5% to prepare spherical particles with the particle size of 1.5-5 mm. According to the invention, the performance of a common CaO2 repairing agent is further optimized on the basis of the common CaO2 repairing agent. The method has the advantages of easily available raw materials, simple process, convenience in operation and low energy consumption, is suitable for the fields of water body remediation and bottom mud passivation, and has industrial popularization value.
Owner:TONGJI UNIV

A method and system for supervising rivers and lakes based on a UAV

The present application relates to a kind of river and lake supervision method and system based on unmanned aerial vehicle, comprising: the multiple frames target image photographed by unmanned aerial vehicle are respectively input into trained water conservancy target identification model, obtain the water conservancy target marked with detection frame and the position information of water conservancy target in target image;Using trained water conservancy target tracking network model obtains the state of water conservancy target in detection frame image;Using the reference water conservancy target quantity of line counting method according to the above state is calculated;Using spatial positioning model obtains the real geographic position of reference water conservancy target;Reference water conservancy target in the preset river management range line is judged as illegal behavior.The present application identifies water conservancy target after water conservancy target identification model, uses water conservancy target tracking network model to track counting, can calculate the real geographic coordinate information of water conservancy target by spatial positioning model, reduce the limitation of unmanned aerial vehicle in river and lake supervision.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

Liquid level measuring method, system and equipment for river regulation

The invention relates to the field of liquid level detection, in particular to a liquid level measuring method, system and equipment for river regulation. The method comprises the following steps: firstly, obtaining original data sequences of different liquid level points on a time sequence, segmenting each original data sequence to obtain different original segmented sequences, obtaining segmentation weights according to data changes in the original segmented sequences, and performing empirical mode decomposition on each original data sequence to obtain different feature data sequences; obtaining the key degree of each feature data sequence according to the distribution and segmentation weight of the data in each feature data sequence; and screening out a key data sequence of each liquid level point from the characteristic data sequence based on the key degree, calculating the liquid level height according to the segmented weight and data in the key data sequence, and detecting the liquid level based on the liquid level height. The influence of water surface fluctuation on liquid level height measurement is reduced, and the liquid level detection precision is improved.
Owner:北京瑞霖徕特科技有限公司

A river function vulnerability assessment method, equipment, medium and product

This application discloses a river functional vulnerability assessment method, equipment, medium, and product, relating to the technical fields of water conservancy projects and river ecological assessment. The method comprises: obtaining basic river information; determining indicator data for river functional vulnerability assessment; constructing a judgment matrix for the indicator data using the analytic hierarchy process (AHP); calculating a weight vector for the indicator data based on the AHP; quantifying and assigning scores to the indicator data based on the basic river information and river flood control standards to obtain a scoring result; and calculating a comprehensive functional score for the river based on the weight vector and the scoring result. The comprehensive functional score is used to assess river functional vulnerability. By introducing the AHP and a multi-indicator scoring system, this application constructs a comprehensive evaluation system for river flood control, navigation, water supply, and ecology. This system can more scientifically and comprehensively reflect river functional vulnerability and provide a reference for river management and governance.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION

Gabion box conveying equipment for river regulation

The utility model relates to the technical field of conveying equipment, and discloses gabion net conveying equipment for river regulation, which comprises a main body, wheels rotatably mounted on the outer wall of the main body, a handle fixedly mounted on the outer wall of the main body, a fixing mechanism arranged on the inner wall of the main body, and an auxiliary mechanism arranged on the inner wall of the main body, the fixing mechanism comprises a threaded sliding block which is slidably installed on the inner wall of the main body, the threaded rod is rotated to enable the threaded sliding block to slide backwards on the inner wall of the main body, and when the threaded sliding block slides backwards, the threaded sliding block is fixed to the inner wall of the main body. The hinge rods can pull the two groups of fixing rods to slide on the inner wall of the main body and drive the two groups of positioning plates to get close to each other to position and fix the gabion net; the L-shaped rods are extruded by the materials to rotate and position and fix the four corners of the materials, and the situation that the gabion net falls in the transportation process and is damaged, and then the performance of the gabion net is affected is avoided.
Owner:SHANXI WATER CONSERVANCY CONSTR ENG BUREAU