32 results about "Hydrographic survey" patented technology

The invention is suitable for the technical field of hydrographic survey, and provides a river and channel water flow velocity measurement method based on video recognition and CFD simulation, and the method comprises the steps: S1, completing data collection and constructing a data set, S2, building a three-dimensional water flow model of a target river or channel, S3, generating a vertical flow velocity distribution model, S4, carrying out the image preprocessing of an obtained video stream, and S5, carrying out the calculation of a vertical flow velocity distribution model. S5, performing target detection on the preprocessed image and calculating an area of the flow velocity, S6, performing optical flow calculation on the extracted specific area and calculating the surface velocity, S7, establishing a distribution relationship between the surface velocity and the vertical velocity, and S8, calculating the real flow velocity of the river channel according to the surface velocity and the vertical velocity distribution. According to the method, the relation between the cross section vertical flow velocity obtained through simulation and the surface flow velocity obtained through calculation of the optical flow method is established, the real flow velocity is finally obtained, multi-source fusion of data is achieved, and the calculation accuracy and the flow velocity measurement precision are remarkably improved.

The invention relates to an underwater three-dimensional topographic surveying and mapping method and device in a reservoir high sand concentration density current period, and the method comprises the steps: carrying out the shallow stratum profile measurement of a planning reservoir region surveying and mapping region of a reservoir in a density current generation period through a hydrological survey ship carrying a shipborne shallow stratum profiler, and obtaining a plurality of ASC format profile data; interpreting the plurality of ASC format profile data to obtain all observation data of a shallow stratum profile in the surveying and mapping area of the planning reservoir area, and extracting water depth data of the surveying and mapping area of the planning reservoir area according to all the observation data; and determining a thalweg line, a left bank line and a right bank line of the underwater topography of the surveying and mapping area of the planned reservoir area, and generating a three-dimensional topographic surveying and mapping result of the target reservoir during density current occurrence in combination with the water depth data and a preset linear interpolation strategy. Therefore, the problems of low terrain observation efficiency, low result confidence, even incapability of obtaining effective data, high detection cost, poor practicability and the like of the existing underwater terrain observation method during the high sand concentration density flow period of the reservoir are solved.

The utility model discloses an adjustable river depth hydrographic measuring rod, which relates to the technical field of measuring rods, and comprises a measuring rod, the measuring rod comprises a measuring rod main body, an auxiliary part is arranged on the measuring rod main body, the measuring rod main body comprises a first positioning rod, a second positioning rod is connected in the first positioning rod in a sliding manner, and the auxiliary part comprises an index assembly. A limiting assembly is arranged on the index assembly, a water inlet hole is formed in one side of the first positioning rod, a first observation window is fixedly connected to one side of the first positioning rod, a first graduated scale is arranged on one side of the first positioning rod, and the first graduated scale corresponds to the first observation window. According to the utility model, the horizontal plane can be distinguished, so that data can be read more intuitively, relatively large floating does not easily occur relative to the external indicator and the indicator in the measuring rod, data reading is facilitated, meanwhile, the rotating shaft can be limited, and the situation that the rotating shaft still rotates after take-up and pay-off, and recovery and fixation of the indicator are not facilitated is prevented.

The invention is suitable for the technical field of hydrographic survey, and provides a millimeter wave radar speed measurement calibration method based on visual flow measurement, which comprises the following steps: acquiring data, constructing a database and preprocessing an image, performing target detection on the preprocessed image based on YOLO v8, performing region segmentation on a water surface region after target extraction is completed, and obtaining a millimeter wave radar speed measurement calibration result. Visual flow measurement calculation is carried out based on an optical flow method, when optical flow calculation is carried out, calculation should be carried out in each area, space-time synchronization is carried out on a visual flow measurement result and a flow velocity measured by a millimeter wave radar, credible areas are screened, abnormal data are processed, and linear coefficients are fitted for each credible area k through a least square method; according to the method, under the condition that millimeter wave radar speed measurement single-point measurement is limited, area speed measurement information is provided through visual flow measurement, and the problem that the millimeter wave measurement range is insufficient is solved.

The invention relates to the field of hydrographic survey, in particular to a water level detection method, device and equipment and a storage medium. The method comprises the following steps: receiving a difference frequency signal of a radar echo; decomposing the difference frequency signal of the radar echo to obtain intrinsic mode functions of different frequency bands; detecting the distribution position of an interference signal in the intrinsic mode function by adopting a self-adaptive threshold value method value; eliminating the interference signals according to the distribution positions of the interference signals, and reconstructing the difference frequency signals after the interference signals are eliminated to obtain difference frequency reconstruction signals; estimating the frequency error of the difference frequency reconstruction signal, and determining the water level of the target position according to the frequency error. According to the method, after the interference signal is eliminated by adopting the self-adaptive threshold value method, the water level of the target position is calculated by further determining the frequency error of the difference frequency reconstruction signal, so that the water level detection precision is higher, the influence of the interference signal on the detection result can be effectively reduced, and the reliability of the detection result is improved.

The invention relates to the technical field of marine hydrographic survey, and discloses a shallow sea full-profile ocean current information acquisition method based on data fusion, which comprises the following steps of: performing bidirectional dual acoustic detection on a shipborne measuring unit and a bottom-supported measuring unit, and acquiring and comparing respective acoustic channel transfer functions; the ocean current effect is quantified by analyzing symmetry breaking of the transfer function, meanwhile, channel disturbance characteristics of the water body environment are recognized, then the disturbance characteristics serve as dynamic constraints to guide data fusion, and an accompanying confidence coefficient index is generated for fused ocean current information. According to the method, an analysis core is changed from a measurement result to an acoustic channel bearing information, self-consistency verification is carried out on the measurement process while the flow velocity is obtained by analyzing the symmetry of channel response, and real flow field change and environment disturbance artifacts are distinguished from the physical principle, so that a blind area of data confidence in the prior art is avoided, and the accuracy of flow velocity measurement is improved. Measurement and diagnosis are integrated.

The utility model provides an ADCP lifting structure of a hydrological surveying vessel, and relates to the field of flow surveying equipment. The ADCP lifting structure of the hydrological surveying vessel comprises a bottom plate and a box body, a lifting assembly is arranged outside the box body and comprises a hollow seat, the hollow seat is fixedly installed on the outer wall of the box body, a coil spring is rotationally connected into the hollow seat, one end of the coil spring is fixedly connected with a rope, and a plurality of rollers are rotationally connected into the box body. The outer wall of each roller makes contact with a rope, the end, away from a coil spring, of the rope extends to the bottom of the bottom plate and is fixedly connected with a transverse plate, a transducer is detachably connected into one groove, an ADCP body is detachably connected into the other groove, the transverse plate is driven by the air bag to float along the water level, and meanwhile the transverse plate drives the rope to slide. And under the elastic force of the coil spring, the rope is retracted into the hollow seat, so that the ADCP body freely ascends and descends along with the fluctuation of the tide in the vertical direction, and the measurement accuracy is further improved.

The invention provides marine hydrological survey auxiliary equipment and relates to the technical field of rope dragging, the marine hydrological survey auxiliary equipment comprises a functional rod, one end of the functional rod is inserted into a right side plate, and the problem that an existing rope winding device of a ship does not have a structure for buffering and protecting a dragged object is solved. The problem that the hydrological survey device cannot be normally used and recycled due to the fact that the rope is pulled more tightly and more tightly and consequently the rope is broken and damaged is solved, and the functional assembly and the protection assembly can form a whole for use in the reset state. The hydrological survey device has the functions of buffering and protecting the dragged hydrological survey device and giving an alarm when the hydrological survey device is stuck, the use is convenient and flexible, a worker can clearly know the moving state of the hydrological survey device at the water bottom, and the stability is extremely high.

The utility model relates to the technical field of hydrological measurement, belongs to the technical field of hydrological monitoring, solves the problem that the measurement accuracy is affected due to the fact that a rainfall measurer is prone to deflection in a water and soil loss area, and particularly discloses a hydrological rainfall measurer supporting assembly which comprises a measuring cylinder, and the bottom of the measuring cylinder is connected with a supporting base. A supporting adjusting assembly and a rotary supporting assembly are connected between the supporting base and the measuring cylinder. The support adjusting assemblies are divided into at least two groups and are respectively arranged on the side surface of the measuring cylinder, each support adjusting assembly comprises two support plates which are respectively connected to the side surface of the measuring cylinder and the surface of the support base, and the two support plates are mutually hinged; an angle adjusting driving mechanism used for adjusting the measuring cylinder to rotate around the rotary supporting assembly is connected between the two supporting plates. The rainwater measuring device used in hydrographic survey has the advantages of being reliable in supporting and protecting assembly and capable of being adjusted to be horizontal.

The invention discloses a river flow monitoring method, device and equipment, a medium and a product, and relates to the technical field of hydrographic survey and video flow measurement, and the method comprises the steps: obtaining a water gauge picture; the surface of the water gauge is painted with symbolic colors. Identifying water level information on the water gauge picture by using a picture identification method; and inputting the water level information into a trained river flow prediction model to obtain water flow data. The water gauge with the surface painted with the symbolic color is used, the captured water gauge picture still contains rich water gauge characteristics at night or in rainstorm, the water level can be effectively recognized through an image recognition algorithm, and the problem that the river flow cannot be effectively monitored under the severe working conditions such as the night or the rainstorm is solved. According to the invention, reliable and efficient river flow monitoring can be carried out at night or under a rainstorm working condition.

The utility model belongs to the technical field of hydrographic survey equipment, and particularly relates to a hydrographic survey lead fish which comprises a streamline main body shell, a support is arranged at the large-diameter end of the main body shell in a penetrating mode, an empennage assembly is arranged at the other end of the main body shell, and a pressure maintaining cabin is arranged in the main body shell and comprises a cabin body and a cabin cover. A pressure sensor, a control device, a battery and a measuring sensor are arranged in the cabin body, a flange plate is arranged on one side face of the cabin body, an electric signal input port is formed in the middle of the flange plate, and one end of the support is connected with the flange plate. The control device is electrically connected with the pressure sensor, the battery, the measurement sensor, the electric signal input port and the data output pin through connecting cables. The pressure maintaining cabin is filled with positive pressure, the pressure sensor senses the air pressure change in the pressure maintaining cabin, if the pressure is reduced and an air leakage position exists, water can seep into the lead fish, whether the lead fish leaks water or not is remotely monitored, and normal use of the lead fish is ensured.

The present application belongs to the technical field of cabin temperature control, and particularly relates to a hydrological survey ship cabin temperature control device, which comprises an unmanned survey ship, survey sensors, a photovoltaic energy storage module, a bubble type ventilation mechanism and a sliding tail type buoyancy increasing mechanism. The survey sensors are arranged on the unmanned survey ship, the photovoltaic energy storage module is arranged on the unmanned survey ship on the side of the survey sensors, the bubble type ventilation mechanism comprises a temperature control assembly and a bubble assembly, the temperature control assembly is arranged at the tail of the unmanned survey ship, and the bubble assembly is arranged at the bottom of the unmanned survey ship. The present application provides a hydrological survey ship cabin temperature control device which can introduce the airflow after ventilation into water, clean the bottom of the ship body when the ship is at low speed or hovering by using the formed bubbles, and increase the buoyancy of the tail of the ship body when the ship body is sailing at high speed, so as to maintain the sailing posture of the survey ship.

The utility model discloses a single-beam depth finder for an unmanned hydrological surveying vessel, which comprises a depth finder body, a protective plate is arranged on the front surface of the depth finder body, and a buffer mechanism is arranged on the back surface of the protective plate. When the depth finder body is used for measurement and a screen is collided by external force, firstly, the protection plate is used for preventing impact, and the protection plate moves the impact force through the inner side of the limiting plate and moves towards the inner side through the buffer rod to drive the square block to move towards the inner side to extrude the pressure spring to absorb the impact force; meanwhile, limiting rods move towards the inner side along limiting grooves to extrude limiting air cushions to absorb impact force, meanwhile, limiting plates are prevented from deviating, and therefore the screen is prevented from being collided, after long-time use, the protection plate is taken out towards the top, the protection plate and the screen are cleaned, an existing screen protection mode is replaced, and the protection effect of the screen is improved. Therefore, the effect of protecting the screen conveniently is achieved.

The present invention discloses a hydrological survey instrument based on level information, belonging to the technical field of water conservancy monitoring equipment, which includes an upper measurement component, a lower measurement component, a level difference acquisition component, and an early warning component. Among them, the upper measurement component is used to measure the water level information near the observation area; the lower measurement component is arranged on the side of the upper measurement component away from the shore; the level difference acquisition component is connected to both the upper measurement component and the lower measurement component at the same time, and is used to obtain the change information of the water level difference between the positions where the upper measurement component and the lower measurement component are located; the early warning component is arranged on the upper measurement component and includes a primary early warning device and a high-level early warning device, and both the primary early warning device and the high-level early warning device are electrically connected to the level difference acquisition component. The present invention solves the problems of cumbersome supervision, time-consuming and laborious, and poor practicability; it cannot monitor the change of tidal water level in real time and intuitively, and there are easily deviations in information processing, resulting in misoperations and wasting human and material resources. The effect is remarkable and it is suitable for wide promotion.

The invention discloses a self-propelled side slope track measuring device special for territorial space hydrographic survey, and relates to the technical field of territorial space planning and hydrographic survey. After a tripod is placed at the horizontal position of a ramp to be installed, whether the tripod is installed stably or not is measured through a plumb line; after stable installation, the hollow block is connected with the measurement vehicle through the lifting mechanism, the installation rod and the first spring, the servo motor and the threaded rod drive the measurement vehicle to move along the sliding rail, the measurement vehicle moves at a constant speed in this way, measurement errors caused by speed changes can be avoided through constant-speed movement, measurement data are more accurate and reliable, and the measurement accuracy is improved. When the measuring vehicle moves underwater, whether interferents exist underwater or not is unknown, after the measuring vehicle and the hollow block are installed, the measuring vehicle and the hollow block are possibly disconnected due to mistaken touch of the interferents, the measuring vehicle loses a power source, and mistaken touch prevention on touch of the interferents is achieved through the rotating frame and the clamping block.

The utility model provides a shell plate type ship side hydrographic survey equipment laying device which comprises a C-shaped framework and a lifting rod, the bottom of the C-shaped framework is connected with an installation frame, the left side and the right side of one side of the bottom of the C-shaped framework are respectively provided with a first locker, a fixing assembly is arranged on the surface of the installation frame, and the fixing assembly comprises a limiting hoop. One side of the limiting hoop is rotationally connected with a first limiting piece through a rotating shaft, a first locking nut is arranged on the surface of the limiting hoop and located on the side opposite to the first limiting piece, and the limiting assembly is arranged on one side of the surface of the C-shaped framework. According to the shell plate type ship board hydrographic survey equipment laying device provided by the utility model, the fixing assembly is arranged on the C-shaped framework with the mounting frame, and the through groove and the limiting assembly are matched for operation, so that an underway acoustic Doppler flow velocity profiler can be fixed on a shell plate type ship board in an auxiliary manner; therefore, the existing manual taking work and hoop fixing mode of workers can be replaced, and the operation safety can be improved.

The invention relates to the technical field of hydrographic survey, and discloses a riverway warning-based water level detection device, which comprises an installer, a cross rod fixedly installed at the top of the installer, a water level detector arranged at one end of the cross rod, and a connecting piece fixedly connected to the outer part of the water level detector, the transmission piece enables the calibration plate to rotate to the position under the water level detector through the transmission belt, and the connecting piece can drive the water level detector to move downwards through the lifting unit. Transmission is conducted through the transmission part, the condition of the water level detector can be fed back in time through the calibration plate, continuity and accuracy of monitoring data are ensured, long-time wrong data caused by equipment drifting faults are avoided, the overall reliability of monitoring equipment is improved, rapid maintenance and replacement are achieved in cooperation with the lifting unit, and the practicability is high. Downtime caused by faults of the water level detector is shortened, long-term stable operation of the monitoring system is guaranteed, and the warning effect that the water level detector is larger than the water level of the river channel is effectively guaranteed.

The utility model provides a rail type ship side hydrographic survey equipment laying device which comprises a main support, an auxiliary support and an installation frame, and a second fixing assembly and a first fixing assembly are installed at the top and the bottom of the surface of the installation frame respectively. The plurality of locking devices are respectively arranged on one side of the bottom of the mounting frame; the through groove is formed in one side of the surface of the mounting frame; and one side of the surface of the auxiliary bracket is connected with a U-shaped support. According to the rail type ship board hydrographic survey equipment laying device, through the arrangement of the main support, the auxiliary support and the installation frame with the first fixing assembly and the second fixing assembly, when the rail type ship board laying device is used on a rail type ship board, the installation frame with the first fixing assembly and the second fixing assembly can be installed on the main support; and then the main bracket is mounted on a handrail for operation, so that the stability during operation can be improved.

The utility model relates to the technical field of hydrological survey, in particular to a buoy for hydrological survey, which comprises a platform body, a buoy base, a buoy body and a buoy body, the anti-collision mechanism comprises an inflatable bag type sealing ring, and the inflatable bag type sealing ring acts on the surface of the buoy table. The inflatable bag type sealing ring is connected with the mounting insertion block, so that the inflatable bag type sealing ring can be mounted on the surface of the buoy table, the mounting insertion block is mounted on the surface of the connecting block, the mounting insertion block is mounted in the mounting insertion groove, the connecting plate acts on the interior of the mounting insertion groove, and the connecting plate is abutted by the mounting insertion groove to move; the connecting rod and the deformation buckle can move along with movement of the connecting plate, the deformation buckle can deform and be clamped in the clamping groove, and therefore the inflatable bag type sealing ring is fixed to the surface of the buoy table, the buoy table is prevented from being impacted, and the effect of anti-collision protection on the buoy table can be achieved.

The utility model belongs to the technical field of water sampling equipment, and particularly relates to water sampling equipment for hydrographic survey, which comprises a shell seat provided with a sampling component. The sampling assembly comprises an unmanned aerial vehicle body fixed to the upper surface of the shell base, a driving motor installed on the inner side wall of the shell base through bolts and a rotating rod fixed to the output end of the driving motor, a winding roller is fixed to the surface of the rotating rod, and a rope is wound around the surface of the winding roller. By arranging the sampling assembly, any position of a water area can be sampled, manual sampling is not needed, the labor intensity of workers is relieved, the working efficiency is improved, the danger of manual sampling can be avoided during sampling, and the using effect of the device is improved.

The application discloses an S-104 water surface navigation water level product automatic production method and system, relates to the technical field of seaway survey data processing, and comprises the following steps: collecting original water level data of a tidal level observation station to perform pretreatment and obtaining standardized intermediate data of the original water level data; performing data coding according to the standardized intermediate data of the original water level data to obtain coding data conforming to S-104 specifications; performing multi-dimensional checking on the coding data conforming to S-104 specifications to obtain water surface navigation water level product data; and performing product dynamic updating based on the water surface navigation water level product data to obtain S-104 water surface navigation water level product automatic production results. According to the application, 90% of manual intervention is reduced through full-process automatic production, single-batch data production time is shortened from the hour level to the minute level, production efficiency is improved by more than 80%, the product qualified rate is improved to 99%, and output data can be directly connected to an ECDIS system.

This invention belongs to the field of engine room temperature control technology, specifically referring to a temperature control device for the engine room of a hydrographic survey vessel. It includes an unmanned survey vessel, survey sensors, a photovoltaic energy storage module, a bubble-type ventilation mechanism, and a stern-type buoyancy enhancement mechanism. The survey sensors are located on the unmanned survey vessel, and the photovoltaic energy storage module is located on one side of the survey sensors. The bubble-type ventilation mechanism includes a temperature control component and a bubble-generating component. The temperature control component is located at the stern of the unmanned survey vessel, and the bubble-generating component is located at the bottom of the unmanned survey vessel. This invention provides a temperature control device for the engine room of a hydrographic survey vessel that can introduce ventilated airflow into the water, using the resulting bubbles to clean the bottom of the hull when at low speeds or hovering, and can increase buoyancy at the stern of the hull during high-speed navigation, maintaining the survey vessel's navigation attitude.

The utility model provides an underwater unmanned hydrographic survey underwater vehicle which comprises an underwater vehicle cabin body, and lifting wings are symmetrically installed on the left side and the right side of the front section of the underwater vehicle cabin body respectively. Stabilizing wings are symmetrically installed on the left side and the right side of the rear section of the underwater vehicle cabin respectively. A data acquisition control bin, a battery bin and a drainage bin are sequentially arranged in the underwater vehicle cabin from front to back. The system has the following advantages: (1) multiple hydrological measurement modules are integrated, hydrological parameters such as water flow velocity, water temperature, river (sea) bottom terrain and sediment content can be obtained through single sailing, and the measurement efficiency is improved; (2) hydrological parameter measurement at various depths can be realized, hydrological data at different depths can be more accurately and meticulously acquired, and more accurate data can be provided for engineering or scientific research; (3) unmanned operation is adopted, so that the operation risk can be reduced; and (4) being detachable, small in storage space, light in structure and convenient to load, unload and transport.

The invention discloses a multi-layer fixed-depth underground water sampling device for underground hydrographic survey, and relates to the field of underground water sampling, the multi-layer fixed-depth underground water sampling device for underground hydrographic survey comprises a support frame, the support frame is rotatably connected with a mounting pipe, and according to the multi-layer fixed-depth underground water sampling device for underground hydrographic survey, graduated scale marking lines are arranged on a pipeline; and the installation box can be accurately controlled to be lowered to the designated depth of underground water. And after the target depth is reached, the specific air inlet pipe is opened by pulling the valve mechanism, and the transmission mechanism is pushed by the blowing mechanism, so that the water pumping plate moves in the water suction box to complete water pumping. Each water suction box corresponds to a specific depth, underground water of different depths can be sampled in sequence, and the problem that water samples of different depths are difficult to accurately obtain in a traditional sampling mode is solved. Moreover, the whole sampling process is relatively simple and convenient to operate, complex equipment does not need to be repeatedly mounted and dismounted, multi-layer fixed-depth sampling can be completed at a time, and the sampling efficiency is greatly improved.

The invention relates to a hydrographic measurement method and device for a shallow water environment, and the method comprises the steps: obtaining the propagation velocity ratio of light in a to-be-measured shallow water environment, and the propagation velocity ratio is the ratio of the propagation velocity of light in a to-be-measured water area to the propagation velocity of light in the air; measuring first water depth data of the to-be-measured area according to a laser range finder of the water depth measurement assembly, wherein the laser range finder is located above the water surface; and calibrating the first water depth data by using the propagation speed ratio to obtain second water depth data. Relates to the technical field of hydrographic survey. According to the invention, direct contact with the riverbed is not needed when the shallow water environment is measured, the influence on the riverbed is reduced, the measurement precision is high, and the method is very suitable for hydrographic survey in the shallow water environment.

The invention provides a fixed-point ice thickness and under-ice flow velocity long-term monitoring system, and belongs to the technical field of hydrographic survey. The adjacent measuring nodes are connected through a cable signal transmission line; each measuring node comprises a shell, and a counterweight is arranged at the bottom of the shell; a pressure sensor is arranged at the bottom of the counterweight; a thickness measuring transducer is arranged at the top in the shell and is used for emitting sound waves to a river surface / an ice surface; a flow velocity measuring transducer is also mounted at the top in the shell through a triangular wedge and is used for obliquely transmitting sound waves to a river surface; the pressure sensor, the thickness measuring transducer and the flow velocity measuring transducer are connected with the main cable signal transmission line through cable signal transmission lines; and the main cable signal transmission line is connected with the information gathering display terminal. The device is suitable for a comprehensive measurement device in a river bottom defense environment, and can continuously and stably obtain key hydrological parameters such as water flow velocity, water depth and winter ice layer thickness under the conditions of not damaging an ice layer structure and not interrupting natural flow of a river.

The utility model relates to a sampling device suitable for a deep hole, and belongs to the technical field of mine hydrographic survey tools and instruments. According to the technical scheme, the device comprises a sealing cone (1), a container barrel (2), a floating guide rod (3), a pressing plate (4), a gravity pressing block (5), a locking nut (6), a suspension rope (7) and a water inlet hole (8), the water inlet hole (8) is formed in the bottom of the container barrel (2), a hole is formed in the top of the container barrel (2), the lower end of the floating guide rod (3) is fixedly connected with the sealing cone (1), and the sealing cone (1) is matched with the water inlet hole (8) in the bottom of the container barrel (2). The upper end of the floating guide rod (3) penetrates through a hole, matched with the floating guide rod (3), in the top of the container barrel (2) and then is connected with a suspension rope (7), and a pressing plate (4), a gravity pressing block (5) and a locking nut (6) are arranged on the floating guide rod (3). The sampling operation difficulty caused by the buoyancy influence of the container in the sampling process can be effectively avoided.

The utility model belongs to the technical field of hydrographic survey, and particularly relates to a hydrographic telescopic measuring rod and hydrographic survey equipment, which comprise a telescopic rod and a supporting device, the supporting device is arranged on the surface of the telescopic rod and comprises a supporting frame, the supporting frame is positioned on one side of the telescopic rod, and the inner wall of the supporting frame is slidably connected with a moving rod. Two clamping wheels are rotatably connected to the inner surface of the moving rod and located on the surface of the telescopic rod, positioning pins are in threaded connection with the inner walls of the supporting frame and the moving rod, an auxiliary device is arranged on the surface of the moving rod and comprises a fixing block, the bottom end of the fixing block is fixedly connected with the upper surface of the moving rod, and a moving frame is slidably connected to the inner wall of the fixing block. By arranging the whole device, the telescopic rod can be limited, meanwhile, the telescopic rod is fixed, continuous measurement of other equipment on the telescopic rod is facilitated, and meanwhile the telescopic rod can be guided when the telescopic rod moves.

The invention relates to the field of water conservancy measurement. The bed load measurer comprises an outer drainage pipeline and a measuring box, the measuring box is communicated with the bottom of the outer drainage pipeline, a drainage hopper is fixedly installed at the bottom of the outer drainage pipeline, the bottom of the drainage hopper extends to the upper end of the measuring box, a measuring mechanism is arranged in the measuring box, and the measuring mechanism is connected with the outer drainage pipeline. And a drainage mechanism is arranged on the drainage pipeline. The drainage mechanism is used as a water flow channel, the inner drainage pipeline composed of the four connecting single bodies is used as the water flow channel and used in cooperation with the tension component, the inner drainage pipeline is driven to expand, and then the function of automatically adjusting the inner diameter size of the inner drainage pipeline is achieved; therefore, the bed load measurer can measure different measurement areas in the same measurement area, the measurement mode of using a plurality of bed load measurers is changed, and the problem of measurement data deviation caused by differences among different bed load measurers can be improved.

The utility model belongs to the field of hydrographic survey monitoring equipment, and particularly relates to an anti-inclination mechanism of hydrographic survey monitoring equipment, which comprises a concrete floor, a hydrographic survey monitoring equipment body is fixedly connected to the top of the concrete floor, and a reinforcing mechanism is arranged at the top of the concrete floor; according to the utility model, the rotating disc is driven to rotate, and the rotation of the rotating disc can drive the sliding blocks and the reinforcing blocks to move by utilizing the connection of the sliding blocks and the sliding chutes, so that the hydrographic survey monitoring equipment body is clamped and reinforced; when a worker needs to clamp, fix and reinforce hydrographic survey monitoring equipment bodies of different specifications and sizes, various clamps of different adaptive specifications do not need to be prepared, so that the hydrographic survey monitoring equipment bodies can be fixed and reinforced more conveniently, certain reinforcing cost is reduced, and the working efficiency is improved. And meanwhile, when the monitoring equipment is applied to a high-precision scene, the data accuracy of the monitoring equipment can be greatly improved.