41 results about "Canal water" patented technology

The invention discloses an irrigation water utilization coefficient evaluation method and system based on irrigation area water use whole process simulation, and relates to the technical field of agricultural water-saving irrigation. Irrigation water utilization information is obtained through multi-source data fusion; based on the irrigation water utilization information, constructing an irrigation area water utilization whole-process simulation model; the whole-process water consumption simulation model for the irrigated area comprises main canal water simulation, field canal water simulation and field crop water simulation; calculating a water delivery utilization coefficient, a water distribution utilization coefficient and a field water utilization coefficient by utilizing the irrigation area water utilization whole-process simulation model; and multiplying the obtained water delivery utilization coefficient, water distribution utilization coefficient and field water utilization coefficient to obtain an irrigation water utilization coefficient. The irrigation water utilization coefficient is accurately measured and calculated, the water utilization efficiency of crops is accurately evaluated, and fine management of water utilization in an irrigation area and water-saving benefit evaluation can be achieved.

A gate linkage control method and device and a series water supply and power generation system are provided. The method comprises the following steps of: acquiring a water demand and current water level information of the series water supply and power generation system, the current water level information at least comprising current riverway water level information and current water diversion trunk canal water level information; determining a gate opening degree control strategy of a first water diversion gate and a second water diversion gate according to the water demand and the current water level information of the series water supply and power generation system; and carrying out linkage control on the first water diversion gate and the second water diversion gate according to the gate opening degree control strategy.

The invention relates to the technical field of water quality detection, and discloses a method and system for detecting the concentration of suspended solids in a canal water sample, and the method comprises the following steps: obtaining environmental parameters of a canal water body in real time, and synchronously collecting a light scattering intensity signal and an acoustic echo attenuation signal of the canal water body through a near-infrared optical sensor and an acoustic Doppler flow velocity profiler; calculating an initial suspended matter concentration value based on the light scattering intensity signal and the acoustic echo attenuation signal; correcting the initial suspended matter concentration value through a dynamic compensation algorithm according to the environmental parameters of the canal water body, and generating concentration data before calibration; inputting the concentration data before calibration into a pre-trained machine learning model, and outputting a final suspended matter concentration value; wherein the pre-trained machine learning model comprises a random forest regression model and a gradient boosting decision tree model. According to the scheme, the detection accuracy under the complex hydrological condition and the real-time response capability of the model under the disturbance scene can be improved.

The invention discloses a water conveyance canal lining plate anti-floating stability online intelligent diagnosis and automatic early warning device and method. The device comprises a high-sensitivity water pressure sensor, an automatic water level gauge, a canal section geologic structure parameter acquisition module, a monitoring and diagnosis early warning controller and a remote monitoring terminal. The high-sensitivity water pressure sensor is arranged below the water surface of a first-stage riding track monitoring well of the water conveyance canal, the automatic water level gauge is arranged in inner side canal water, the monitoring and diagnosis early warning controller is in communication connection with the high-sensitivity water pressure sensor and the automatic water level gauge, and the remote monitoring terminal is in communication connection with the monitoring and diagnosis early warning controller. According to the method, the underground water level of the first-level riding track, the water level of the channel and the geological structure parameters of the channel section are collected in real time, an analytic formula method based on Dupuff assumption is innovatively provided for calculating the characteristic water depth of the underground water infiltration line of the channel slope, and the preset critical pressure difference judgment standard is combined; on-line monitoring, intelligent diagnosis and automatic early warning of the anti-floating stable state of the lining plate of the water delivery canal and the replacement fill stratum can be achieved.

The invention provides an automatic drip irrigation regulation and control method and system for a well and canal combined irrigation area, and relates to the technical field of drip irrigation regulation and control, and the method comprises the steps: carrying out the timing sequence sensing of multi-source farmland environment parameters through M farmland environment sensing units of M drip irrigation land parcels, and carrying out the local drip irrigation coupling demand decision; m real-time drip irrigation strategies returned by the M farmland environment sensing units are received, drip irrigation load compatibility analysis is executed, and the M real-time drip irrigation strategies are decomposed into K groups of parallel drip irrigation strategies; backtracking well and canal operation time sequence data to perform well and canal water supply proportion analysis; and in the process of driving the proportional mixing valve and the pressure regulation and control unit in a linkage manner by adopting a water source proportional regulation and control instruction and circularly executing K groups of parallel drip irrigation strategies, executing two-dimensional closed-loop correction according to a load feedback vector. The technical problem that in the prior art, the automatic drip irrigation regulation and control efficiency of the well and canal combined irrigation area is poor can be solved, and the technical effect of improving the automatic drip irrigation regulation and control efficiency is achieved.

The utility model relates to a channel water-saving gate device based on buoyancy self-adjustment, the channel water-saving gate device based on buoyancy self-adjustment comprises a gate groove, a gate and a buoyancy linkage structure, the buoyancy linkage structure comprises a fixing rod arranged on the backwater side of the gate, the fixing rod is rotatably connected with a plurality of levers, the top of the gate is provided with a connecting handle, and the connecting handle is connected with the gate. The first connecting end, close to the gate, of the lever movably penetrates through the connecting handle and then is connected with a first limiting block, and the second connecting end, away from the gate, of the lever is connected with a first floating ball through a connecting rod so that the first floating ball can drive the gate to ascend and descend along the gate groove along with ascending and descending of the water level of the backwater side of the gate. A plurality of second floating balls are connected to the bottom of the gate, and when the gate is completely closed, the second floating balls are higher than the first floating balls, so that when the water level of the upstream side of the gate rises to the second floating balls, the gate can be opened under the action of the second floating balls to drain water. The channel water-saving gate device not only can accurately control the irrigation water level, but also has the flood discharge capacity.

The invention discloses a device and a method for testing influence of river and canal flood on variable slope pipe network drainage and ground surface submerging, and relates to the field of urban flood. A water tank lifting assembly can ascend and descend, and a water tank can move relative to the water tank lifting assembly, so that the gradient of the water tank can be adjusted; the inspection well lifting assembly can ascend and descend and can move so that the gradient of the underground pipe network can be adjusted, the effluent weir comprises a weir plate which can move in the height direction of the testing device, and the weir plate is used for adjusting the water level in the river channel. Therefore, the gradient of the water tank is adjusted through the water tank lifting assembly, the gradient of the underground pipe network is adjusted through the inspection well lifting assembly, and the weir plate is used for adjusting the water level in the canal. The test device can accurately simulate the influence degree of the dynamic change of the water level of the canal on the drainage of the urban variable-gradient pipe network and the range and depth of surface submerging under the combined situation of different surface incoming flows and pipeline incoming flows, and provides decision support for urban flood risk management and urban drainage system design.

The utility model discloses a multi-stage canal water diversion device for farmland, which belongs to the field of agriculture and comprises a plurality of canal bodies, adjacent canal bodies are connected through connecting sections integrally arranged with the canal bodies, and gate components are arranged on the canal bodies close to the connecting sections. A filter mechanism capable of preventing blockage and convenient to disassemble is arranged at the position, located on the downstream of the gate assembly, of the channel body and comprises a filter screen installed on the channel body in an inserted mode and a positioning assembly arranged on the channel body and used for positioning and fixing the filter screen, and a cleaning assembly used for cleaning the surface of the filter screen is arranged on the filter screen. The cleaning assembly comprises a connecting rod penetrating through the fixing plate, the bottom of the connecting rod is provided with a brush abutting against the surface of the filter screen through a mounting frame, and the connecting rod is sleeved with a reset spring. The multi-stage canal water diversion device for the farmland can effectively filter impurities, keep the canal unblocked, improve the irrigation efficiency, reduce the maintenance cost and guarantee the long-term stable operation of an irrigation system.

The application relates to the technical field of water quality detection, and discloses a detection method and system for the concentration of suspended solids in a canal water sample, which comprises the following steps: acquiring the environmental parameters of the canal water body in real time, synchronously collecting the light scattering intensity signals and acoustic echo attenuation signals of the canal water body through a near-infrared optical sensor and an acoustic Doppler current profiler, calculating an initial suspended solid concentration value based on the light scattering intensity signals and the acoustic echo attenuation signals, correcting the initial suspended solid concentration value through a dynamic compensation algorithm according to the environmental parameters of the canal water body to generate pre-calibration concentration data, inputting the pre-calibration concentration data into a pre-trained machine learning model to output a final suspended solid concentration value, and wherein the pre-trained machine learning model comprises a random forest regression model and a gradient boosting decision tree model. The scheme can improve the detection accuracy under complex hydrological conditions and the real-time response capability of the model under a disturbance scene.

The application provides a well-canal combined scheduling method coupled with long short memory deep learning, first, a real-time hydrological forecast model is constructed, historical N-day meteorological, hydrological and different water source irrigation amounts are taken as inputs through a long short memory deep learning method to forecast runoff in a short future period, the different water source irrigation amounts include well water and canal water irrigation amounts; then, a real-time water amount scheduling model is constructed, a minimum runoff is taken as a constraint to maximize irrigation area water supply benefit to solve optimal irrigation amounts of different water sources in a short period; finally, the real-time hydrological forecast model and the real-time water amount scheduling model are iterated and simulated until balance is reached, so that optimal well water and canal water irrigation amounts are obtained. The application can realize precise irrigation of an irrigation area, fully utilize water supply capacity of a canal, exchange water supply time for water supply space, fully play water storage engineering capacity of the irrigation area and maximize reduction of drought.

The remote control clearing equipment comprises a 4G remote control switch, a control box, a machine base, a lifting part, a horizontal movement and dirt fishing part and a rotatable dirt loading and overturning dirt unloading part. The rack lifting motion component comprises a lifting screw transmission part, a lifting operation driving motor and a rack; the screen bucket frame horizontal movement component comprises a horizontal operation driving motor, a horizontal movement track, a horizontal movement chain wheel and a chain; the horizontal movement, the vertical movement and the rotating operation of the screening hopper are all controlled by a 4G remote control switch manually according to a monitoring picture; an operator carries out the operation of salvaging floating objects according to the water surface width and the water level height of canal water through a monitoring picture and on and off of each signal lamp; the technical effects are as follows: 1, manual remote control is adopted, and unmanned floating object salvage field work is realized; 2, the fishing cost is reduced; and 3, the environment protection work is effectively promoted.

The invention discloses a canal ecology monitoring method and system based on multi-source heterogeneous data and electronic equipment, and relates to the field of canal monitoring, and the method comprises the steps: obtaining multi-source heterogeneous data obtained by monitoring the water ecology of a target canal, the multi-source heterogeneous data comprises multi-class sensor monitoring data, remote sensing and unmanned aerial vehicle monitoring data and routing inspection input data; performing classification processing on the multi-source heterogeneous data to obtain a multi-dimensional monitoring data sequence based on a data transmission period; standardizing the multi-dimensional monitoring data sequence, and analyzing the change trend of the water quality and hydro meteorological indexes based on the standardized multi-dimensional monitoring data sequence; and according to the change trend analysis result, generating a canal ecology monitoring report and a water ecology emergency plan. The technical problems that the monitoring mode of a canal water ecology monitoring system in the prior art is single, and multi-dimensional changes of a water ecosystem cannot be comprehensively reflected are solved.

The utility model relates to the technical field of irrigation ditches, and discloses an irrigation ditch water flow adjusting device which comprises a main body structure and a fixing mechanism, the main body structure comprises a fixing frame, the fixing frame is fixedly connected with a fixing plate, the fixing plate is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a worm, the worm is meshed with a worm wheel, and the worm wheel is fixedly connected with the worm wheel. The worm gear is fixedly connected with a connecting shaft, the connecting shaft is fixedly connected with an original gear, the fixing frame is provided with a sliding groove, the sliding groove is connected with a baffle in a sliding mode, the baffle is provided with a tooth groove, and the tooth groove is meshed with the original gear. Compared with traditional manual adjustment, the automatic control mode has the advantages that the accuracy and efficiency of adjustment are greatly improved, the problem that the flow speed is too high or too slow due to improper manual operation or errors is effectively solved, and particularly, the time for stopping irrigation is difficult to accurately grasp during night irrigation, so that the irrigation efficiency is greatly improved. Water resource waste and rice seedling root rot are easily caused.

The utility model discloses a canal overwater prefabricated pipe pile foundation photovoltaic support, and relates to the technical field of photovoltaic supports, the canal overwater prefabricated pipe pile foundation photovoltaic support comprises a prefabricated pipe pile foundation, the upper surface of the prefabricated pipe pile foundation is fixedly provided with an insertion cylinder, the inner part of the insertion cylinder is inserted with an insertion rod, the upper surface of the insertion rod is fixedly connected with an oblique beam, and the oblique beam is fixedly connected with the prefabricated pipe pile foundation. Four cross beam purlins are fixedly mounted on the upper surface of the oblique beam, a photovoltaic panel is fixedly mounted on the upper surfaces of the four cross beam purlins, and a front support and a rear support are fixedly mounted on the front side and the rear side of the lower surface of the oblique beam respectively. By arranging the front support, the rear support, the front stand column, the rear stand column and the four cross beam purlines, the photovoltaic support can be conveniently installed, all the components are assembled in a screw fixed installation mode during installation, on-site welding can be reduced, the construction period can be shortened, the installation efficiency can be improved, installation is more convenient, and the installation cost is reduced. The front support, the rear support, the front stand column and the rear stand column are arranged at the bottom of the oblique beam, and deformation of the oblique beam is small.

The irrigation ditch water flow control device for intelligent irrigation comprises an irrigation ditch main body, a protruding base is arranged on the surface of the upper end of the irrigation ditch main body, a rotating main shaft is arranged on the surface of the inner side of the protruding base, and an adjusting type flashboard is fixedly connected to the outer surface of the rotating main shaft. The lower surface of the adjustable gate plate is attached to the inner side surface of the lower end of the irrigation channel body, the left side face and the right side face of the outer end of the adjustable gate plate are tightly attached to the inner side surface of the irrigation channel body, and the outer side surface of the irrigation channel body is fixedly connected with a supporting seat. The supporting seats are distributed and fixed to the outer surfaces of the left end and the right end of the irrigation channel body, worms are arranged on the surfaces of the inner sides of the supporting seats, a turnable adjustable flashboard structure is adopted, the turning angle of the adjustable flashboard, the opening space angle and the water flow rate can be adjusted through an external manual-automatic integrated driving assembly, and the operation is convenient. Adjustment is flexible and convenient, and the adjustable flashboard is simple in structure and low in cost.

The invention discloses an irrigation area water volume scheduling optimization method based on an index triangular optimization algorithm, and relates to the field of water conservancy informatization. By constructing an optimization model with the branch channel water supply amount as a decision variable and combining an index triangular optimization algorithm, efficient distribution and refined regulation and control of the water amount of the irrigation area are achieved. The water demand of each irrigation piece, a branch channel and different crops in each irrigation period in an irrigation area is integrated, constraint conditions such as the maximum water supply amount of a water source, the water delivery capacity of the channels and the irrigation pieces and the like are introduced, and a multi-objective function system for minimizing the overall water shortage rate and maximizing the crop yield is constructed. Through an index triangular perturbation mechanism, the global exploration capability is enhanced at the initial stage of search, the local search precision is optimized at the later stage, the stability and convergence of solutions are ensured, compared with a traditional method, the water utilization efficiency and the crop yield are improved, the stability of multi-target optimization in a complex environment is enhanced, and the method is suitable for large-scale popularization and application. And a reliable technical support is provided for the construction of an intelligent irrigation area water volume scheduling system.

The present application relates to a kind of wetland catchment canal water level monitoring adjusting device, belong to catchment canal water level adjusting tool technical field;Including transmission case, installation mechanism is provided with in the both sides of transmission case, installation mechanism is connected with the two sides of water channel inner wall;Lower water pipe is fixedly arranged at the lower end of transmission case, reinforced hose is slidably sleeved outside lower water pipe, drain pipe is arranged at the lower end outlet of reinforced hose;Transmission mechanism is arranged in transmission case, and transmission mechanism includes rotatable transmission shaft and rotatable shaft, winding roller is fixedly arranged on transmission shaft, steel wire rope is wound on winding roller, and the end of steel wire rope is connected with the upper end of reinforced hose;Vibration mechanism is arranged between shaft and lower water pipe, and vibration mechanism includes liftable vibration rod, steel ball is fixedly arranged in the lower end of vibration rod, and steel ball knocks lower water pipe;The problem that current wetland catchment canal water level monitoring adjusting device water level regulation effect is poor, cannot self-cleaning is solved.

This invention discloses an evaluation system, method, and storage medium for the winter irrigation water transport process in farmland, comprising the following steps: Step 1: Selection of study area, study time, and verification area; Step 2: Analysis of the winter irrigation water transport path in the study area, divided into four levels: "irrigation canal - farmland surface - farmland groundwater - drainage ditch," constructing a water transport system; Step 3: Construction of an irrigation canal water transport algorithm; Step 4: Construction of a farmland surface water transport algorithm; Step 5: Construction of a farmland groundwater transport algorithm; Step 6: Construction of a drainage ditch water transport algorithm. Using the method and system of this invention, reasonable irrigation and drainage improvement methods can be proposed through simulation and prediction of irrigation and drainage volume and time. Predictions were made in the Ningxia section of the Yellow River Basin, with the overall 34-day winter irrigation period remaining unchanged, but delayed by 1 to 8 days for water saving predictions. Prediction results show that delaying winter irrigation can effectively improve the water transmission efficiency in the irrigation canal.

The present invention discloses a method for calculating the settlement of adjacent high-rise buildings during canal foundation pit excavation. The method first calculates the surface settlement caused by foundation pit excavation, taking into account the building. Then, considering the groundwater level change, the settlement caused by the groundwater level change is calculated. The surface settlement and the settlement values ​​of the groundwater level change are superimposed, and a settlement curve is drawn that takes into account the presence or absence of groundwater level changes. The inclinometer data of the high-rise building and the settlement data of the bottom of the building close to the ground are analyzed, and a settlement curve of the high-rise building during deep foundation pit excavation under the condition of canal water level changes is drawn. Finally, by comparing the data differences and performing error analysis, it is determined that the error of the calculation result of the method is controlled within a certain range, and the settlement value can be predicted more accurately. The calculation formula of the present invention not only takes into account the load of the building itself but also takes into account the impact of groundwater level changes on the building settlement caused by foundation pit excavation. The calculated settlement amount is more accurate and has a smaller error.

The application provides a gate linkage control method and device and a series water supply and power generation system. The method is applied to the series water supply and power generation system. The method comprises the following steps: obtaining water demand and current water level information of the series water supply and power generation system; wherein the current water level information at least comprises current river channel water level information and current water diversion main canal water level information; determining gate opening control decisions of a first water diversion gate and a second water diversion gate according to the water demand and the current water level information of the series water supply and power generation system; and performing linkage control on the first water diversion gate and the second water diversion gate according to the gate opening control decisions. The method provided by the above scheme can determine the gate opening control decisions according to the current water demand and the current water level information, so that the gate opening of the multiple water diversion gates can be controlled according to the gate opening control decisions, and the series water supply and power generation system can be accurately controlled.

The present invention discloses a method for recommending a pipe network drainage scheduling strategy based on a collaborative filtering algorithm, which includes the following steps: step 1, determining a study area, collecting and organizing pipe network data, rainwater and sewage catchment division data, lake and canal water system data, and historical scheduling data in the study area; step 2, constructing a drainage scheduling model for the study area; step 3, constructing a scheduling scheme pool and a scheduling scenario pool; step 4, recommending a drainage scheduling scheme; step 5, performing calculation and deduction based on the recommended drainage scheduling scheme in combination with the drainage scheduling model; obtaining calculation and deduction results and evaluation indicators, and after the scheduling personnel adjust the drainage scheduling scheme according to actual needs, saving the scheme and scenario to a data pool, and performing calculation and deduction again to obtain the expected scheduling result, thereby guiding the arrangement and implementation of the scheduling strategy; the present invention can make up for the shortcomings of drainage scheduling personnel's invalid or insufficient experience due to unknown scenarios.

The utility model provides a water distribution scheduling control flashboard for an irrigation canal system, which relates to the field of water resource allocation and comprises a flashboard frame, the middle of the flashboard frame is fixedly mounted on a central shaft, the outer surface of the central shaft is rotatably connected with a group of sleeves, rotating plates are fixedly mounted on two sides of the sleeves, and the rotating plates are fixedly connected with the flashboard frame. A control mechanism capable of being opened actively is fixedly installed in the sleeve, and a motor is fixedly installed above the gate plate frame. According to the irrigation canal system water distribution scheduling control flashboard, a motor works to drive a rotating shaft to rotate so as to drive a driving gear to rotate, the needed water depth is determined, a telescopic sleeve above the designated water depth works, and an intermediate gear can be engaged with the driving gear and a driven gear at the same time; under the driving of the driving gear, the rotating plate can rotate, so that water in the ditch is kept at a water level of a certain height, and garbage floating on the water surface can pass through the flashboard through water flow and is prevented from being accumulated at the flashboard.

The application discloses a water resource optimal regulation and control method of a long vine snake gourd water network irrigation system, and comprises the following steps: (1) establishing a generalization and network topology relationship of a long vine snake gourd water network system water supply end, water taking end and water conveying and distributing end; (2) designing a three-layer hierarchical control structure of "general regulation-subordinate regulation-self regulation" according to the concept of "multi-level hierarchical control structure", wherein, the "general regulation layer" is a backbone water source regulation, water is pumped to key nodes of each backbone branch canal through a canal head pump station; the "subordinate regulation layer" regulates water quantity to branch canal water distribution points; the "self regulation layer" forms a point-to-point relationship of many water distribution points of the trunk and branch canals, local ponds, i.e. low vine snake gourds and water users, so as to redistribute water quantity; (3) constructing a long vine snake gourd reservoir and canal combined multi-objective water resource optimal regulation and control model and solving by using NSGA-II, wherein, the model comprises: determining a decision variable, establishing an objective function and constructing a constraint condition; and the application provides a scientific basis for water resource optimal regulation and control of the long vine snake gourd water network irrigation system.

The application discloses an ecological protection structure of an original main river channel of an artificial canal, which comprises an original main river channel bend, a branch stream and a canal. The branch stream flows into the original main river channel bend to divide the original main river channel bend into an upstream river section and a downstream river section. The canal has two intersection openings with the original main river channel bend. From upstream to downstream, the two intersection openings are an upstream intersection opening and a downstream intersection opening. A stilling basin is arranged in the downstream river section. A sand guide ridge is arranged near the downstream river section corresponding to the branch stream, so as to guide the silt and part of the water body of the branch stream to the upstream river section. A dike is arranged at the upstream intersection opening. A plurality of water passing grooves are formed in the top end of the dike. The water passing grooves are arranged at intervals. The groove bottom height of the water passing grooves is higher than the water level of the canal in the dry season and lower than the flood level of the canal in the flood season. The ecological protection structure can keep the water body of the upstream river section flowing all the year round and keep the biodiversity of the upstream river section.

The invention is a flow-through flow-through filter that can separate raw water and / or sewage to filtered stream, fine particle stream and grit stream in one hydraulic device. For raw lake and / or canal water intake application, the flow-through filter is placed inside a chamber box that is mounted on a water intake rack structure or diversion canal. The invention filters debris and organisms to prevent biomes formation in pumps and waterlines that delivers raw water to a water treatment plant. The flow-through filter withdraws flows from a raw water body without taking defined sediment, floating debris and target aquatic biomes and eliminates the need of discharging remnants to a sewage system.For wastewater treatment, the flow-through filter is installed over a wet well after the headwork rack and may replace the grit removal, primary clarifier, and the fine screening. The flow-through filter requires a much smaller footprint of the area and / or enclosed building that requires smaller odor control. There is a substantial cost saving of using one device and replaces grit removal, primary basin, and fine screening.

The utility model relates to the technical field of fertilization, in particular to an adjustable fertilization device. When the device is used, the fertilizer inlet is connected to the fertilizer storage assembly in which a fertilizer is stored. The fertilizer receiving assembly is placed in the irrigation canal and immersed below the canal water surface of the irrigation canal, the fertilizer storage assemblies are placed on the ground on the two sides of the irrigation canal, and the fertilizer in the fertilizer storage assemblies can enter the fertilizer receiving assembly through the fertilizer conveying pipe under the action of gravity. The fertilizer conveying pipe is provided with threads, and the fertilizer receiving assembly is connected to the threads in a screwed mode. The fertilizer receiving assembly is gradually rotated so that the fertilizer receiving assembly can advance on the threads, and the abutting wall at the bottom of the fertilizer receiving assembly is close to or far away from the fertilizer outlet, so that the amount of the fertilizer entering the fertilizer bearing cavity is adjusted. And the fertilizer entering the fertilizer bearing cavity is washed by the canal water to be mixed in the canal water and flows out from the first discharge hole, so that adjustable fertilization of the canal water of the irrigation canal is realized.

The invention discloses a pump station approach channel water level measuring device and method. Comprising an unmanned ship which is provided with a propelling device and can move along a river channel; a radar water level gauge, an anchor gear and a mooring device are mounted on the unmanned ship; wherein the radar water level gauge is used for measuring the height H from the bottom of the boat to the bottom of a river channel; the anchor gear is used for fixing the small unmanned ship at a preset measurement point P; the mooring equipment is used for measuring the distance between the small unmanned ship and the mooring bollard through the cable crane encoder, providing power for the small unmanned ship through the power cable and transmitting data measured by the radar water level gauge to the pump station through the data cable. And the small unmanned ship can move towards the pump station side by taking back the cable through the cable crane. The measuring device can automatically move to a corresponding measuring point according to the water level and is anchored at the measuring point position, and manual intervention is reduced.

The invention relates to the technical field of water environment monitoring, in particular to an urban canal water environment monitoring device which comprises a monitor, a monitoring component is arranged at the output end of the monitor, a first connecting frame is fixedly connected to the left side of the front surface of the monitor, and a second connecting frame is fixedly connected to the right side of the front surface of the monitor. A transmission part is arranged on the adjacent side of the first connecting frame and the second connecting frame. According to the device, through limiting of a cam groove, a driven rod and a fixing frame, a sliding rod reciprocates up and down, a connecting block drives a matching needle to reciprocates up and down, electromagnetic induction is conducted through a magnetic ring, the frequency generated when water flows is obtained, when the frequency is too high, the flow speed is too high, and when the water flow speed is too high in rainy days, the water flow speed is too high; if the water flow is torrential, the monitor can give an alarm immediately, natural disasters are prevented in advance, the service life of the sensor is greatly prolonged through the monitoring means, and the maintenance cost is reduced.

The present invention specifically relates to a canal ecological water resource allocation method based on a feedback mechanism. In the rainy season, when a water level gauge detects a rise in the canal water level, the upstream sluice gate is closed or the opening degree is reduced to control the canal water level within a safe range, the switch status of the sluice gate and the regulating gate is adjusted, and the water resource distribution in the basin is regulated to avoid excessive water accumulation in local areas. The working status of the sluice gate and the pump station is automatically adjusted based on real-time monitoring data. The sluice gate is automatically closed when the water level is too high to reduce the downstream flood control pressure. In the dry season, when the water level gauge shows that the water level has dropped to near or below the ecological flow guarantee water level, the upstream sluice gate is opened to increase the canal flow, or the pump station is started to extract water from groundwater, lakes or water storage facilities and inject it into the canal. The water level and flow are automatically monitored. Once it falls below the ecological flow threshold, the sluice gate or pump station is automatically opened to replenish water. In neither the rainy nor the dry season, the water resource allocation of the canal is intelligently adjusted according to the weather forecast data in combination with the weather forecast data.

The present invention discloses a method for constructing a canal system optimized water distribution model for constant-power pump units, comprising: collecting data from a study area, establishing a canal system optimized water distribution model, and solving the model. The canal system optimized water distribution model in the present invention uses smooth water flow transition and minimizing water abandonment as its objective functions, and imposes corresponding flow constraints on the gross flow of the main canal water distribution based on a linear combination of the pump unit power. The model uses an annealing algorithm as its solution algorithm, and rationally allocates irrigation water to the irrigation area based on the irrigation water demand of each branch canal control area obtained by the solution. This invention can address the problem that existing water distribution models do not conform to the actual water distribution process of some pumping stations.