46 results about "River level" patented technology

The invention discloses an urban rainfall flood preventing and treating intelligent control system and a control method. A road surface accumulated water level sensor, a river level sensor, a well and pond level sensor, a pipeline, a flow rate sensor and a flow sensor of a pump outlet and a speed adjusting frequency converter arranged on a pump are arranged. A central control unit is arranged and in signal and control connection with the road surface accumulating water level sensor, the river level sensor, the well and pond level sensor, the flow rate sensor, the flow sensor and the speed adjusting frequency converter. The central control unit is provided with a display with a big screen, a printer, an interface and a communication line, wherein the interface and the communication line transmit data with an upper controller. The control method includes the following steps that the control system is set and an initial value of the control system is set; a network line is opened, the central control unit is connected and the system operates; warning situations are dealt with in time; data is filed, settled and reported. The urban rainfall flood preventing and treating intelligent control system and the control method are suitable for monitoring, preventing and treating of urban drainage and rainfall floods, complete in structure, high in automaticity, easy to operate, timely and accurate in monitoring and capable of ensuring safety of urban drainage and flood control.

The invention discloses a ball valve type deposited soil undisturbed soil sample sampling device and a sampling method thereof. The device comprises a handle, a rotary shaft, a counterweight bearing table, a shoe, an openable and closeable blade, a shaft cover and at least one extension rod, and further comprises a plurality of counterweights. The using method of the device comprises the following steps: 1) determining the pitch number of the extension rods and the number of the counterweights, passing the free end of a traction rope to symmetrical through holes of the counterweights along grooves of the counterweights, rotating the handle to be vertical to the ground, sleeving the required counterweights on the extension rods by virtue of the handle, and rotating the handle to be parallel to the ground; 2) putting the sampling device into water, maintaining the water flow channel smooth and inserting the shoe into a mud soil layer to sample; 3) lifting the traction rope and closing the lower end opening of the shoe; 4) unloading the counterweights and taking out a sludge sample. The device disclosed by the invention is simple in structure, convenient to detach and easy to carry, and maintains the original characters of the sludge sample, so that the device is particularly suitable for interface sampling with relatively high river level and water depth of lake.

To provide a river water level predicting apparatus which predicts the water level of a river with accuracy. The river water level predicting apparatus 1 comprises a water level measuring section 5 for measuring the water level of the river 4 and storing therein a measured value, rainfall measuring sections 7, 8 for measuring rainfall quantities of a river 2 and the river 4 and storing therein the quantities, and a water level predicting model 20 for predicting the water level of the river, based on the measured values. The water level predicting model 20 has an autoregressive portion and an FIR model portion, and the model 20 is identified by a model identifying section 21. The model identifying section separately calculates a parameter for the autoregressive section and a parameter for the FIR model section, based on the measured values.

The invention relates to a water level and water flow velocity integral measuring device and belongs to the technical field of automatic detection. The water level and water flow velocity integral measuring device is characterized in that dual functions of simultaneously measuring the river water level and the water flow velocity are realized, and the measuring device consists of a balance weight block 1, a flow velocity sensor 2, a weighing sensor 3, a steel wire rope 4, a pulley 5, a weighing cable 6, a measuring cable 7, a cable 8, a waterproof junction box 9, a motor 10, a speed reducer 11, a steel wire rope rolling tube 12, a coding sensor 13, a water level intelligent meter 14, a flow velocity intelligent meter 15, a weighing intelligent meter 16, a water level display screen 17, a flow velocity display screen 18 and a weight display screen 19. The water level and water flow velocity integral measuring device has the advantages that the on-line continuous measurement for the river level and the water flow velocity in the fixed place, at the fixed time and in the fixed height is realized, and the water level and water flow velocity integral measuring device is applicable to the fields of water conservancy, hydrology and the like.

The invention discloses a fast coding method for a large quantity of sub-basins on the basis of a digital river network. The method changes the mode that river network coding is conducted by means ofraster data in tradition, takes the digital river network as a basis and comprises the steps that 1, DEM data of a studying basin is acquired and processed to obtain data of the flow direction, the flow accumulation and the river network vector; 2, the flow accumulation of various vector river channels is counted; 3, river network level recognition, naming and coding rules are made; 4, a program is written to code the vector river network to obtain river network coding information; and 5, various sub-basins are determined through partitioning according to river network coding results. According to the fast coding method for a large quantity of sub-basins on the basis of the digital river network, the river network coding efficiency and the data capacity are greatly improved, the newly-established river network naming rule has the advantages of being capable of reflecting the river levels, stable in topological relation, unlimited in river number, capable of supporting flow confluence of multiple river reaches, easy to update and the like, querying, storage and analysis are convenient, and the new method is provided for coding the basin river network and sub-basin levels.

The invention provides a time-shifting electric-mode detecting method for tracing an expansive soil dam landslide permeation sliding process. The method comprises the following steps: collecting electrical resistivity data of a dam in a stable river level during a drought period through a dam electrical resistivity chromatography imaging observing system; performing independent inversion on the electrical resistivity data, acquiring a fracture surface electrical resistivity initial value and a corresponding electrical resistivity change range, and according to the fracture surface electrical resistivity initial value and the electrical resistivity change range, creating a static model; performing the inversion on the electrical resistivity data of each time point by using the static model,and according to an inversion result, distributing a lagrangian multiplier for each space-time section; based on the lagrangian multiplier, performing the inversion on the electrical resistivity dataof each time point by using a mixed regularization inversion calculating method constrained on the basis of time domain regularization and self-adaptive regularization, to obtain an inversion calculating result. The method is capable of effectively filtering noise in the electrical resistivity data irrelevant to time, thereby applying a concept of time lapse, and keeping continuous in an inversion process.

The invention provides a method and device for determining river level, computer equipment, and a readable storage medium. The method comprises: determining a target footprint closest to a middle position of the water in the current period according to a waveform and a water range of a echo signal reflected by the water to the satellite; determining that the waveform of the echo signal corresponding to the target footprint is an effective waveform if the waveform of the echo signal corresponding to the target footprint satisfies a preset condition; and performing a waveform re-operation on theeffective waveform to obtain a river level corresponding to the target footprint in the current period according to the season of the current period. The waveform re-operation comprises performing the waveform re-operation on the effective waveform by using a waveform re-algorithm corresponding to the season. The method greatly improves the calculation accuracy of the river level in the mountainous area, and improves the accuracy of the river level in the mountainous area by selecting different waveform re-algorithms in different seasons.

Artificial-intelligence-based river information system. In an embodiment, a first training dataset is used to train a travel time prediction model to predict a travel time along the waterway for a given trip. In addition, a second training dataset is used to train a river level prediction model to predict a river level along the waterway for a given time. For each of a plurality of trips, a request is received that specifies the trip and a time of the trip, and, in response to the request, the travel time prediction model is used to predict a travel time for the trip, and the river level prediction model is used to predict a river level of the waterway at one or more points along the trip. Then, a voyage plan is generated based on one or both of the predicted travel time and the predicted river level.

The invention discloses an ecological method for repairing the concrete grating revetment of a river level fluctuation zone by using plants, which is characterized in that Salix matsudana Koidz which can resist flooding and acid as well as alkali is selected, the provenance (namely sprout branches) is selected in the local area or similar ecological habitat, and after indoor seedling raising by cutting, seedling transplantation and outdoor seedling acclimatization, the branches are planted in the concrete grating in the river level fluctuation zone in a bag cultivation way for adaptive growth. The ecological method ensures the survival rate of planted seedlings and the nutrition requirement for growth of the seedlings in the early stage, and plays an important role in improving the ecological quality of artificial hard revetments and landscapes at the river bank zone, thus having a good application prospect.

A sensitivity analysis method for the change of a river level caused by river bed evolution due to human intervention comprises the following steps: collecting runoff data in a riverway area to be evaluated since hydrological records, determining the dominant discharge, and selecting the dominant formative runoff date according to the type of a tide to actually measure tide level processes at the river mouth; acquiring actually measured natural river bed topographic maps before and after the dominant formative runoff date; acquiring natural river bed geological data, determining burial depths and widths of sand beds on cross sections; determining the characteristic parameters of bed load and suspended load through a soil test; establishing a flow and sediment mathematics calculation model according to the basis data; determining the bed roughness of the natural river bed according to water level validation, sand content validation of the suspended load, and erosion and deposition validation of a terrain; dividing the river bed area into four areas according to the river sand reserves and the river sand distribution of the natural river bed; forecasting the influence of artificially dredging on a future riverway level change rule in different areas.

The invention relates to a warning and traffic restriction system, in particular to a warning and traffic restriction system for an urban river level ultrahigh riverway road. The technical problem tobe solved is to provide the warning and traffic restriction system for urban river level ultrahigh riverway road, which can effectively remind passing pedestrians and vehicles that the water level inthe river is ultrahigh. The system comprises a mounting frame, a supporting column, a first guardrail, a second guardrail, a third guardrail, a fourth guardrail, a net cylinder, a distance sensor, a guide rod, a guide sleeve, a floating ball, a box body and the like. The supporting column is fixedly connected to the top of the mounting frame. The second guardrail is arranged on the road, the thirdguardrail is mounted on the rear portion of the left side of the second guardrail, and the first guardrail is rotatably mounted on the front side of the third guardrail through a hinge plate. The road can be blocked through the first guardrail to warn people that the water level in the river channel is ultrahigh and needs to be noticed, so that passing pedestrians and vehicles can be effectivelyreminded that the water level in the river channel is too high.

The invention discloses a natural energy power multifunctional generation device. Every blade is provided with an opening and a throttle door for opening and closing the opening, and the throttle door can rotate to open or close the opening within a range of 0-180 degree; by adjusting the pressure of the blades at various rotation positions, the pressure difference among the blade can be high, so that the energy source utilization rate is high, and vortexes can be avoided, further the natural energy power multifunctional generation device can rotate under high flow velocity as well as low flow velocity to generate electricity. The natural energy power multifunctional generation device can generate electricity through wind energy, river water energy and wave energy. The invention also discloses an overflow dam river basin power generation system. The overflow dam river basin power generation system is that a plurality of the natural energy power multifunctional generation device are horizontally arranged on a river way and achieves the water level raising function like as an overflow dam, the natural energy power multifunctional generation device can be arranged in a multi-stage mode in river basins to generate electricity through the water sources repeatedly and meanwhile play a role of raising the water level of rivers, and when river flow is small, parts of the natural energy power multifunctional generation device can be closed. Therefore, the overflow dam river basin power generation system can increase the water level of the river as well as generate electricity, thereby achieving the effects of water storage, electricity generation and landscape improvement.

The invention provides a method for analyzing spatial image information and GIS based river time sequence, comprising forming low waterway and dike data in each year according to aerial photographs and satellite images of coordinates, automatically and systematically processing river level change analysis and plane shape change in each year, and easily comparing the moving of the low waterway. The system comprises a display part, a database, and a system drive component; the control manner is as follows: receiving aerial photographs, satellite images and a digital map; changing the resolutions and capacities of the aerial photographs; synchronizing the coordinates with the aerial photographs; performing geometrical compensation and image fusion on the satellite images and classifying the aquo system of the target region, dividing the river areas of the aerial photographs and satellite images of the region into a plurality of areas in each year, comparing the change of the river, and driving to alarm when the area change is judged.

The invention relates to a slope protection system for hydraulic and hydroelectric engineering, and belongs to the field of slope protection. The system comprises a slope body. A slope protection lowwall is arranged at the bottom of the slope body, and multiple groups of protection devices are arranged on the slope body in the length direction of the slope body. The protection devices comprise fixed tables arranged on the slope body, the fixed tables are located at the positions close to the slope protection low wall, protection plates are arranged on the fixed tables, the protection plates are slidingly connected to the fixed tables in the vertical direction, a containing groove allowing the protection plates to be moved in or out is formed in the slope protection low wall, and drive devices for driving the protection plates to slide in the vertical direction are arranged in the fixed tables. The system has the effects that when the river level rises, the situation that river water spills over the slope protection low wall is reduced.

The invention relates to a continuous and automatic water level monitoring method for rivers in severe cold areas and belongs to the field of water level observation of the rivers in the severe cold areas. The method comprises the steps of arranging an automatic water level monitoring device; calculating the range of a sensor; calculating a fixed point and a height of an erection pile; calculatinga drop point of the sensor; and calculating the sediment grain size of a covering layer of a protective sleeve. The method has the advantages that a bran-new sensor protective sleeve device is provided, free feeding and removing of the sensor are achieved while the sensor is prevented from being scoured by flow and being damaged by an ice dam base, and repairing and maintenance of the sensor aregreatly facilitated. A whole set of calculation methods for the range of the sensor, the fixed point and the height of the erection pile, the drop point of the sensor, the sediment grain size of the covering layer of the protective sleeve and the like are provided. The problem in continuous and automatic water level observation of a river reach with a bedload bed, a wide beach, a large water levelvariation range and an outstanding ice jam flood disaster is successfully solved; manpower and material resources are greatly reduced; and the continuous and automatic water level monitoring method has extremely high reference value for automatic water level observation of similar river reaches.

The invention discloses a soft movable dam easy to open, aims to overcome the defects of the prior art, and provides the soft movable dam without constructing a diversion canal or interception without short construction period and easy opening. The dam foundation consists of a pedestal and a bracket, wherein the bracket is arranged on the dam base and is vertical to a riverbed; and a dam body consists of cables arranged on the bracket. When the bracket is vertical to the pedestal, the bracket blocks the flow of river to achieve the effect of a dam; when the bracket is parallel to the pedestal through rotation of a rotating shaft, the bracket is in a state parallel to the riverbed, cannot cause blockage on navigation of a vessel, thereby achieving the aim of opening and closing the soft dam through up-down reciprocation of the bracket. The dam is suitable for rivers, and controls the height of river level, insulation of a water area of rivers, lakes and seas, water level adjustment and the like, in particular to blockage on saline water intrusion.

The invention relates to a river level test instrument part which comprises a statocyst and a cone water gauge. An automatic balancing water inlet device is mounted in the statocyst; a detection instrument barrel and a buoy are mounted on the left side of the cone water gauge; a balancing weight is mounted at the lower end of the detection instrument barrel; the statocyst is connected with a cross bar by the balancing weight; a detection sensor is mounted at the middle part of the cross bar; the buoy is welded with the detection instrument barrel by a connecting base; the statocyst and the detection instrument barrel are respectively mounted at both sides of the cross bar. According to the invention, by arranging the statocyst, the cone water gauge, the cross bar and the detection sensor, the river level test instrument part is helpful for measuring an integral position of a balancing part and a water level, fixing the balancing part and mounting the detection sensor; by arranging the buoy, the detection instrument barrel and the connecting base, the river level test instrument part is helpful for achieving a part floating function, mounting a detection instrument and connecting and fixing the buoy and the cone water gauge.

The invention relates to the technical field of hydraulic power generation, in particular to a river channel power generation system. The river channel power generation system comprises a floating plate, a floating ball, a guide bracket, a guide cover, a propeller and a permanent magnet generator; the floating ball is connected with the head part of the guide bracket through a spring; the tail part of the guide bracket is fixed with the floating plate; the guide cover is under the middle back part of the floating plate; the permanent magnet generator is arranged in the guide cover, and is fixed in the guide cover through a bracket; and the propeller is arranged in a back outlet of the guide cover, and is connected with a rotating shaft of the permanent magnet generator. The river channel power generation system has the beneficial effects of power generation by using the river water flowing speed, no influence from the river level, no need of building a dam and no influence on ecological environment.

The invention relates to an anti-stranding device, and in particular relates to an anti-stranding device for a joint combination scaffolding floating bed. The device comprises a reinforced pile which is fixed on a riverbed, wherein a connector a is fixed on the reinforced pile, one end of the connector a is connected with a support which is used for supporting the floating bed, the other end of the connector a is connected with a connecting rod, and the top of the connecting rod is provided with a connector b which is used for fixing on a river bank slope. The support consists of a telescopic rod and a supporting board, wherein the telescopic rod is flexibly connected with the supporting board through bolts and nuts so as to be convenient for replacing and repairing. The connector a and the connector b are joint bearings, and the connecting rod is a triangular steel rod. The anti-stranding device for the joint combination scaffolding floating bed has firm structure, is not easy to distort, and can move flexibly and freely along with directions of the tides and along with the river levels, and thus the floating bed connected with the device is prevented from being stranded on the shore, so that the plants which are planted on the floating bed can be prevented from withering up.

The invention discloses river irrigation equipment for farmland. The equipment comprises a fixed block fixedly arranged on the upper surface of the ground, a separation net used for separating impurities is fixedly arranged on the upper surface of the fixed block, and a water storage space located in the upper surface of the fixed block is arranged on the lower side of the separation net. Kinetic energy of water flow in a river is used for storing water in the water storage space, meanwhile, overflowing water flows out, mechanical energy of the water is used for generating electricity, and when water is needed, if the water supply amount of a water wheel is insufficient or the water level of the river drops and the water wheel cannot work, a storage battery is used for directly supplying power. When water supply is needed, only the required water supply amount needs to be adjusted after a water supply pipe is opened, a stop lever automatically moves downwards and the water supply pipe is closed after water supply is completed, people do not need to worry about too much water in the field, the water supply pipe does not need to be closed in a timing mode, use is very convenient, energy is supplied through water flow, and the equipment is very environmentally friendly and worthy of popularization.

The invention relates to a river flow velocity and water level inversion method of a land-based GNSS reflectometer. The river flow velocity and water level inversion method comprises the following steps: acquiring a reflection signal of a GNSS signal on a river surface in a land-based scene; estimating the Doppler frequency of the reflected signal by using a Gaussian fitting method according to the reflected signal; according to the reflected signal Doppler frequency, inversing the river flow velocity by using a reflected signal bistatic geometrical relationship; obtaining a coherent signal and an incoherent signal of the reflected signal; determining an accumulation ratio according to the coherent signal and the incoherent signal; when the accumulation ratio is smaller than a set threshold value, using the fuzzy scene for water level inversion, and determining the height of the receiver relative to the river surface; when the accumulation ratio is greater than or equal to a set threshold value, performing water level inversion by using the coherent scene, and determining the height of the receiver relative to the river surface; and determining the river level according to the height of the receiver relative to the river surface and the elevation of the receiver relative to the ground. According to the invention, low-cost and high-precision detection of the flow velocity and the water level of the river can be realized.

The invention relates to an urban drainage, water replenishment and water exchange pump station hub which is designed for solving the technical problems of the poor management of similar pump stations, the poor urban drainage, water replenishment and pollution control effects and too high reconstruction cost. The hub comprises a water replenishment pump station and a water drainage pump station, wherein the water replenishment pump station is located on an outland river on the side of a main river channel, and the water drainage pump station is arranged in an urban inland river. The urban drainage, water replenishment and water exchange pump station hub is characterized in that an underground pipeline for achieving communication of the two pump stations is arranged between the water replenishment pump station and the water drainage pump station, and the water replenishment pump station and the water drainage pump station are provided with an outland river sluice and an inland river sluice correspondingly, and are each provided with a control system. The underground pipeline design can save land, and meanwhile, when the water level of the inland river is too high, drainage is carried out through the water drainage pump station; when the water level of the inland river network is too low, water is supplemented through the water replenishment pump station and the underground pipeline; and when the inland river network is polluted, water is exchanged through the water drainage pump station and the underground pipeline. The structure is simple, the design is reasonable, the construction cost is low, the investment is small, and the effects of drainage and pollution control are good; and the urban drainage, water replenishment and water exchange pump station hub is suitable for new construction and reconstruction and upgrading of urban pump stations.

A sensitivity analysis method for the change of a river level caused by river bed evolution due to human intervention comprises the following steps: collecting runoff data in a riverway area to be evaluated since hydrological records, determining the dominant discharge, and selecting the dominant formative runoff date according to the type of a tide to actually measure tide level processes at the river mouth; acquiring actually measured natural river bed topographic maps before and after the dominant formative runoff date; acquiring natural river bed geological data, determining burial depths and widths of sand beds on cross sections; determining the characteristic parameters of bed load and suspended load through a soil test; establishing a flow and sediment mathematics calculation model according to the basis data; determining the bed roughness of the natural river bed according to water level validation, sand content validation of the suspended load, and erosion and deposition validation of a terrain; dividing the river bed area into four areas according to the river sand reserves and the river sand distribution of the natural river bed; forecasting the influence of artificially dredging on a future riverway level change rule in different areas.

The invention discloses a flood drainage flow determination method of a flood drainage pump station. The method comprises the following steps: step 1, determining a flow process boundary of the upstream of a waterlogging area in a flood period and a water level process boundary of the downstream of the waterlogging area in the flood period; step 2, determining the initial adjustment water level value of the waterlogging area; calculating channel excess flow corresponding to different inland river water levels in the waterlogging area; 3, a plurality of drainage flow values are selected, and an inland river water level-inland river volume relation curve under different pump drainage flows is obtained through calculation; 4, the highest inland river water level corresponding to each drainage flow value is obtained; and 5, comprehensively considering, selecting an optimal scheme, and taking the pump drainage flow in the scheme as the drainage flow value of the drainage pump station. The invention provides an efficient and simple pump station scale design method, and the method can avoid the phenomena that waterlogging occurs in an upstream waterlogging area and a waterlogging drainage pump station at the downstream of the waterlogging area cannot run at full load in a pump station design stage.