An inland river bed silt thickness layering detection device

Abstract

The application relates to the technical field of silt detection equipment, and discloses an inner-river riverbed silt thickness layering detection device, which comprises a supporting base, a lifting mechanism is assembled on the supporting base, a mounting plate is fixedly connected to the lifting mechanism, a body is slidably assembled on the mounting plate, a plurality of classified storage boxes are arranged in the body, a main control hardware unit is arranged in the body, and the main control hardware unit is provided with a layering detection environment parameter compensation terminal. Through the layering detection environment parameter compensation terminal, the temperature and the conductivity environment physical property parameters actually measured in combination with the silt samples can be used to respectively call the special correction coefficients of the floating silt layer, the flowable silt layer and the compacted silt layer, the original detection signals output by the silt thickness detection main sensor are subjected to layering compensation operation, and the detection signal drift problems caused by the temperature and the conductivity characteristic differences of different silt layers are overcome.

Description

Technical Field

[0001] This invention relates to the field of siltation detection equipment technology, and in particular to a device for detecting the stratification of siltation thickness in inland riverbeds. Background Technology

[0002] Inland river channels are subject to long-term effects of upstream sediment inflow and scouring and deposition, resulting in continuous sediment accumulation in the riverbed. This sediment typically differentiates into three layers along its depth: floating mud, fluid silt, and compacted silt. The physical and mechanical properties of these different layers vary significantly. Accurately obtaining the actual thickness of each layer is fundamental for developing dredging plans, calculating dredging quantities, analyzing riverbed scouring and deposition evolution, and assessing flood control operations. The accuracy of the measurement data directly impacts the effectiveness and cost of river management projects. Currently, inland riverbed sediment layer detection primarily relies on in-situ sensors to collect thickness data. However, significant gradients exist in the environmental properties of the silt, such as temperature and conductivity, between different sediment layers within the river channel. Temperature changes alter the ionic activity within the silt, while conductivity reflects the ion concentration. Both interfere with the signal output of the thickness detection sensors, causing drift and deviation in the original detection signal. This results in a discrepancy between the sensor's output thickness value and the actual sediment thickness, leading to insufficient accuracy in layered sediment thickness detection. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of insufficient accuracy in detecting the thickness of stratified siltation. To address this, we propose a stratified siltation thickness detection device for inland riverbeds.

[0004] To achieve the above objectives, this application adopts the following technical solution: a stratified detection device for siltation thickness in inland riverbeds, comprising a support base, a lifting mechanism mounted on the support base, an installation plate fixedly connected to the lifting mechanism, an organism slidably mounted on the installation plate, and multiple sets of classified storage boxes arranged inside the organism. Each set of classified storage boxes has a temperature sensor and a conductivity sensor arranged in its inner cavity. The temperature sensor and conductivity sensor are used to collect the temperature and conductivity environmental parameters of the silt samples inside the corresponding classified storage box. A main siltation thickness detection sensor and a displacement sensor are mounted on the detection rod. The displacement sensor is used to output the depth position signal of the detection rod, and the main siltation thickness detection sensor is used to output the original siltation thickness detection signal. The machine body is equipped with a main control hardware unit, which is configured with a layered detection environment parameter compensation terminal. The layered detection environment parameter compensation terminal includes a layer identification module, a raw data receiving module, a layer mapping module, a layer coefficient retrieval module, a layer compensation calculation module, and a layer result output module. The layer identification module is used to receive the depth position signal transmitted by the displacement sensor, identify the current silt layer, fluidized mud layer, or compacted silt layer of the detection rod, and output the corresponding layer identifier. The raw data receiving module is used to synchronously receive sample temperature parameters collected by the temperature sensor, sample conductivity parameters collected by the conductivity sensor, and raw detection signal of silt thickness collected by the main sensor for silt thickness detection. The layer mapping module is used to bind the silt sample information, temperature parameters, electrical conductivity parameters and original detection signals of silt thickness of the corresponding layer according to the layer identifier output by the layer identification module, and classify and store them into the corresponding layer storage partition. The layered coefficient retrieval module is used to pre-store three sets of independent temperature correction coefficients and electrical conductivity correction coefficients for floating mud layer, fluidized mud layer, and compacted silt layer, and automatically retrieve the corresponding correction coefficient set for the silt layer according to the real-time layer identifier. The layered compensation calculation module is used to unify temperature and conductivity as correction parameters for each sediment layer, call the layered coefficient to retrieve the corresponding layer correction coefficient output by the module, and perform targeted compensation calculation on the original detection signal of the sediment thickness of the layer to eliminate the detection signal offset caused by temperature differences and mud-water conductivity differences between different sediment layers. The layering result output module is used to calibrate the layering interface position of each silt layer based on the accurate data after compensation and correction by the layering compensation calculation module, and output the detection results of the actual siltation thickness of each layer.

[0005] Furthermore, each of the sorting and storage boxes is provided with a corresponding feed port at the bottom, and a detection rod is provided on one side of the mounting plate. The detection rod is equipped with an adaptive connector assembly. The detection rod can selectively connect to any feed port through the adaptive connector assembly to transport the sludge sample collected by the detection rod to the corresponding sorting and storage box.

[0006] Furthermore, the adaptive connector assembly includes an outer mounting block, an outer connector, an adaptive connector, a movable channel, a control block, a central connecting rod, and a spring element. The outer mounting block is fixedly mounted on one side of the mounting plate, the outer connector is connected to the detection rod, the movable channel is opened on one side of the outer mounting block, one end of the adaptive connector is movably inserted into the outer connector, one side of the adaptive connector is fixedly connected to the control block, and the control block is slidably connected to the movable channel.

[0007] Furthermore, the central connecting rod is fixed within the movable channel, and the central connecting rod extends longitudinally through the control block, with a spring element fixedly connected to the lower end of the control block.

[0008] Furthermore, the elastic element is sleeved on the outer wall of the central connecting rod, and the lower end of the elastic element is fixedly connected to the bottom of the movable channel cavity.

[0009] Furthermore, the lifting mechanism includes a telescopic rod, a motor, a threaded rod, and a U-shaped block. The telescopic rod and the motor are both fixedly connected to the support base, and the motor is fixedly connected to the threaded rod.

[0010] Furthermore, the U-shaped block is threaded to the outer wall of the threaded rod, and the upper ends of both the U-shaped block and the telescopic rod are fixedly connected to the bottom end of the mounting plate.

[0011] Furthermore, each group of classified storage boxes is isolated from each other, and each classified storage box is used to store sludge samples of floating mud, fluidized sludge, and compacted sludge layers, so that sludge samples of different sludge layers do not mix with each other.

[0012] Furthermore, the main control hardware unit is equipped with a memory, which is electrically connected to the hierarchical detection environment parameter compensation terminal.

[0013] Furthermore, the memory pre-stores temperature correction coefficients and electrical conductivity correction coefficients for floating mud, fluidized mud, and compacted silt layers, and provides hierarchical storage partitions for storing data of each layer after being bound by the hierarchical mapping module.

[0014] The technical effects and advantages of this invention are as follows: In this invention, by using a layered detection environmental parameter compensation terminal, the temperature and conductivity environmental properties of the silt sample can be measured. Specific correction coefficients are retrieved for the floating mud layer, the fluidized silt layer, and the compacted silt layer, respectively. Layered compensation calculations are then performed on the original detection signal output by the main sensor for silt thickness detection. This overcomes the drift problem of the detection signal caused by differences in temperature and conductivity of different silt layers, corrects the identification deviation of the silt layer interface, effectively improves the detection accuracy of the silt thickness of each layer in the inland riverbed, and avoids measurement distortion caused by relying solely on the original detection data. Attached Figure Description

[0015] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the overall planar structure of the present invention; Figure 4 This is a diagram of the internal architecture of the layered detection environmental parameter compensation terminal of the present invention; Figure 5 This is a schematic diagram of the lifting mechanism structure of the present invention; Figure 6 This is a schematic diagram of the detection rod and adaptive connector assembly of the present invention; Figure 7 This is a schematic diagram of the internal structure of the adaptive control unit of the present invention.

[0016] Legend: 1. Support base; 2. Lifting mechanism; 21. Telescopic rod; 22. Motor; 23. Threaded rod; 24. U-shaped block; 3. Mounting plate; 4. Machine body; 5. Classified storage box; 6. Feed inlet; 7. Detection rod; 8. Adaptive connecting pipe assembly; 81. External block; 82. External connecting pipe; 83. Adaptive connecting pipe; 84. Movable channel; 85. Control block; 86. Intermediate connecting rod; 87. Elastic element. Detailed Implementation

[0017] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0018] Reference Figures 1-7 As shown, in order to solve the problem that the original detection signal drifts and shifts, causing a deviation between the thickness value output by the sensor and the actual accumulation thickness, the following preferred technical solution is provided.

[0019] A device for detecting the stratified thickness of siltation in inland riverbeds includes a support base 1, which serves as the foundation for the entire machine. During operation, the support base 1 is fixedly installed on the deck of a vessel or a riverside platform. The support base 1 is constructed of welded steel sections, possessing sufficient structural rigidity to withstand the impact of lifting and lowering the machine, as well as the swaying caused by the aquatic environment. A lifting mechanism 2 is mounted on the support base 1, and a mounting plate 3 is fixedly connected to the lifting mechanism 2. During operation, the lifting mechanism 2 drives the mounting plate 3 to achieve vertical lifting and lowering. A transverse sliding guide rail is provided on the mounting plate 3, and the bottom of the machine body 4 cooperates with this guide rail, allowing the machine body 4 to slide and mount onto the mounting plate 3. The machine body 4 can reciprocate horizontally along the mounting plate 3, thereby adjusting its lateral position relative to the detection rod 7, facilitating the switching of pipeline connection positions between different classification storage boxes 5 and the detection rod 7. The machine body 4 is equipped with multiple sets of classified storage boxes 5. The multiple sets of classified storage boxes 5 are arranged side by side inside the machine body 4. Each set of classified storage boxes 5 is independent of each other and the boxes are completely separated by sealed partitions. They are used to store sludge samples collected from different siltation layers separately, so as to prevent sludge from different layers from mixing.

[0020] Each set of classification storage boxes 5 is equipped with a temperature sensor and a conductivity sensor. The temperature and conductivity sensors are fixed to the upper part of the inner wall of the classification storage box 5 using fasteners. The sensor probes extend downwards into the storage cavity, with sufficient space reserved at the probe position to ensure that the sludge liquid level completely submerges the sensor probe after the sludge sample is introduced into the classification storage box 5, allowing the sensor probe to directly and fully contact the sludge sample. The temperature and conductivity sensors are used to collect the temperature and conductivity environmental parameters of the sludge sample inside the corresponding classification storage box 5. The collected physical property parameter signals are transmitted to the main control hardware unit through shielded signal lines. In this embodiment, the temperature and conductivity sensors are immersion sensors resistant to mud and water corrosion, and the probes are coated with an anti-corrosion coating to adapt to the corrosive conditions of wet and abrasive inland river sludge, reducing interference from sludge adhesion and ensuring stable and reliable acquisition of sample physical property parameters.

[0021] A detection rod 7 is installed on one side of the mounting plate 3. The detection rod 7 is a hollow tubular rod with a silt sample delivery channel inside. The detection rod 7 extends downwards and is inserted into the river water during operation. A sampling head is installed at the lower end of the detection rod 7, which can be opened and closed to collect silt samples. The detection rod 7 is equipped with a main silt thickness detection sensor and a displacement sensor. The displacement sensor moves vertically synchronously with the detection rod 7 and outputs a depth position signal of the detection rod 7 to provide real-time feedback on the depth of the detection rod 7 as it is lowered into the riverbed, thereby determining the silt layer level of the detection rod 7 probe. The main silt thickness detection sensor is located close to the sampling head at the lower end of the detection rod 7 and outputs the original silt thickness detection signal to obtain the original thickness data of the riverbed silt layer before compensation and correction.

[0022] The internal structure of unit 4 has an independent electrical mounting cavity. The main control hardware unit is fixedly installed inside the reserved electrical mounting cavity of unit 4. The electrical mounting cavity is sealed and waterproofed to prevent water vapor from the river from entering and damaging the electronic components. The main control hardware unit is equipped with a layered detection environmental parameter compensation terminal. The layered detection environmental parameter compensation terminal is a program function terminal burned into the main control hardware unit. The layered detection environmental parameter compensation terminal includes a layer recognition module, a raw data receiving module, a layer mapping module, a layer coefficient retrieval module, a layer compensation calculation module, and a layer result output module.

[0023] The layer identification module receives the depth position signal transmitted by the displacement sensor, identifies the current silt layer, fluidized mud layer, or compacted silt layer of the detection rod 7, and outputs the corresponding layer identifier. During actual operation, the displacement sensor continuously transmits depth position data at high frequency. The layer identification module has a preset depth interval division logic for each silt layer, matches the real-time depth of the detection rod 7 to the corresponding silt layer, generates a unique corresponding layer identifier signal, and transmits it to the next level module.

[0024] The raw data receiving module is used to synchronously receive sample temperature parameters collected by the temperature sensor, sample conductivity parameters collected by the conductivity sensor, and raw sediment thickness detection signals collected by the main sediment thickness detection sensor. The raw data receiving module is electrically connected to the temperature sensor, conductivity sensor, main sediment thickness detection sensor, and displacement sensor. It receives and performs simple filtering preprocessing on the multi-channel sensor signals to filter out noise interference caused by water operations and forwards the collected data completely to the layer mapping module.

[0025] The layer mapping module is used to bind the information of silt samples, temperature parameters, electrical conductivity parameters, and original detection signals of silt thickness at the corresponding layer according to the layer identifier output by the layer identification module, and classify and store them into the corresponding layer storage partition. The layer mapping module uses the layer identifier as an index label to associate and bind all physical property data and original thickness data collected under the same silt layer, and gives the whole set of data a layer label to avoid confusion between data of different layers. After the binding is completed, the whole set of data is stored in the corresponding layer storage partition inside the memory.

[0026] The layered coefficient retrieval module is used to pre-store three sets of independent temperature correction coefficients and electrical conductivity correction coefficients for the floating mud layer, fluidized mud layer, and compacted silt layer. Based on the real-time layer identifier, it automatically retrieves the corresponding correction coefficient set specific to the silt layer. Since the silt medium characteristics of different silt layers are different, the correction coefficients of each set are different. After receiving the layer identifier, the layered coefficient retrieval module indexes and matches the temperature correction coefficient and electrical conductivity correction coefficient corresponding to that layer, and outputs them to the layered compensation calculation module.

[0027] The layered compensation calculation module is used to unify temperature and conductivity as correction parameters for each sediment layer. It calls the layered coefficient to retrieve the corresponding layer correction coefficients output by the module and performs targeted compensation calculations on the original detection signal of sediment thickness for that layer. This eliminates the detection signal offset caused by temperature differences and differences in the conductivity of mud and water between different sediment layers. The layered compensation calculation module calculates and corrects the original detection signal of sediment thickness according to a preset compensation algorithm, combined with the real-time measured temperature and conductivity values ​​and the corresponding layer correction coefficients. This offsets the measurement drift caused by the physical properties of the silt environment and yields the corrected thickness data.

[0028] The layered result output module is used to calibrate the layer interface position of each silt layer based on the accurate data after compensation and correction by the layered compensation calculation module, and output the actual silt thickness detection results of each layer. The layered result output module receives the thickness data after correction, calculates the actual thickness of each floating mud layer, fluidized silt layer and compacted silt layer, marks the layer interface position, and finally outputs the layered thickness results. It can be connected to an external display screen and storage device to complete the data display and retention.

[0029] Each set of sorting and storage bins 5 is equipped with a corresponding feed inlet 6 at its bottom. The feed inlet 6 is connected to the internal storage cavity of the sorting and storage bin 5 and moves laterally synchronously with the machine body 4. A detection rod 7 is provided on one side of the mounting plate 3. The detection rod 7 is equipped with an adaptive connecting pipe assembly 8. The detection rod 7 can selectively connect with any feed inlet 6 through the adaptive connecting pipe assembly 8 to transport the sludge sample collected by the detection rod 7 to the corresponding sorting and storage bin 5. When the machine body 4 slides along the transverse guide rail on the mounting plate 3, different feed inlets 6 move sequentially to the position directly above the adaptive connecting pipe assembly 8. The adaptive connecting pipe assembly 8 seals and connects with the currently aligned feed inlet 6. The sludge sample of that level collected by the detection rod 7 is then sent into the matching sorting and storage bin 5 through the pipeline, realizing stratified sampling and collection.

[0030] The adaptive connector assembly 8 includes an outer block 81, an outer connector 82, an adaptive connector 83, a movable channel 84, a control block 85, a central connecting rod 86, and a spring element 87. The outer block 81 is fixedly mounted on one side of the mounting plate 3, serving as the mounting base for the adaptive connector assembly 8. The outer connector 82 is connected to the detection rod 7, and the sample flow channel inside the detection rod 7 is connected to the internal pipeline of the outer connector 82. The movable channel 84 is opened on one side of the outer block 81 and is a vertically opened guide cavity. One end of the adaptive connector 83 is movably inserted into the outer connector 82, allowing the adaptive connector 83 to slide vertically relative to the outer connector 82. A sealing gasket is provided between the two to ensure that the pipeline remains connected and the mud does not leak during the sliding process. The control block 85 is fixedly connected to one side of the adaptive connector 83, and the control block 85 is slidably connected to the movable channel 84. The control block 85 is constrained by the movable channel 84 and can only slide vertically along the movable channel 84.

[0031] The intermediate connecting rod 86 is fixed inside the movable channel 84, and the intermediate connecting rod 86 extends longitudinally through the control block 85. The intermediate connecting rod 86 serves as a sliding guide rod for the control block 85, allowing the control block 85 to slide up and down along the rod. The lower end of the control block 85 is fixedly connected to a spring element 87. The spring element 87 is sleeved on the outer wall of the intermediate connecting rod 86, and the lower end of the spring element 87 is fixedly connected to the bottom of the cavity in the movable channel 84. In this embodiment, the elastic element 87 is a compression spring. The elastic element 87 always applies an upward elastic pushing force to the control block 85, thereby driving the adaptive connector 83 to press against the end face of the feed port 6, ensuring that the connection between the adaptive connector 83 and the feed port 6 is sealed, and no leakage occurs when the sludge sample is transported. When the machine body 4 shifts laterally to switch the feed port 6, the lower end face of the feed port 6 presses down on the adaptive connector 83, overcoming the elastic force of the elastic element 87 and causing the adaptive connector 83 to retract downward, completing the passage switching. After switching to the position, the elastic element 87 pushes the adaptive connector 83 again to seal and fit with the new feed port 6.

[0032] The lifting mechanism 2 includes a telescopic rod 21, a motor 22, a threaded rod 23, and a U-shaped block 24. The telescopic rod 21 and the motor 22 are both fixedly connected to the support base 1. The motor 22 is fixedly connected to the threaded rod 23, and the operation of the motor 22 drives the threaded rod 23 to rotate. The U-shaped block 24 is threadedly connected to the outer wall of the threaded rod 23. The rotation of the threaded rod 23 drives the U-shaped block 24 to produce vertical displacement. The upper ends of the U-shaped block 24 and the telescopic rod 21 are both fixedly connected to the bottom end of the mounting plate 3. The telescopic rod 21 plays a vertical guiding and bearing role, restricting the mounting plate 3 from moving vertically up and down together with the U-shaped block 24, thereby driving the mounting plate 3, the machine body 4, and the detection rod 7 to rise and fall as a whole, realizing the lowering and raising of the detection rod 7.

[0033] Each set of classified storage boxes 5 is isolated from each other. Each classified storage box 5 is used to store sludge samples of floating mud, fluidized sludge, and compacted sludge layer, so that sludge samples of different sludge layers are not mixed. The classified storage boxes 5 are completely separated by partitions, and each box is independent of each other. When sampling, sludge of different layers enters the corresponding box respectively to avoid mixing and interference with the collection of physical property parameters.

[0034] The main control hardware unit is equipped with a memory, which is electrically connected to the layered detection environment parameter compensation terminal. The memory pre-stores temperature correction coefficients and conductivity correction coefficients for floating mud, fluidized silt, and compacted silt layers, and provides layered storage partitions for storing data of each layer after binding by the layered mapping module. The memory stores the correction coefficients obtained from each pre-calibration, and also receives the complete set of detection data after binding from the layered mapping module, storing them in different layered storage partitions according to the layer level, providing data support for subsequent compensation calculations and data retrieval.

[0035] The specific operation process is as follows: The formal testing operation begins. Motor 22 is activated, and its output torque drives the threaded rod 23 to rotate. The threaded rod 23 causes the U-shaped block 24 to move vertically downwards, pushing the mounting plate 3 downwards. Simultaneously, the telescopic rod 21 extends, guiding and limiting the mounting plate 3 to prevent it from deflecting. The mounting plate 3 then drives the machine body 4 and the testing rod 7 downwards as a whole, slowly extending the testing rod 7 into the riverbed water. Throughout the continuous downward movement of the testing rod 7, the displacement sensor continuously collects real-time signals of its descent depth, while the main sensor for sediment thickness detection continuously collects raw signals of the riverbed sediment thickness. Both signals are transmitted in real-time to the main control hardware unit.

[0036] When the depth signal from the displacement sensor reaches the depth range of the floating mud layer, the layer identification module identifies that the current detection rod 7 is in the floating mud layer and outputs the corresponding layer identifier. The control system drives the machine body 4 to slide horizontally along the transverse guide rail on the mounting plate 3, so that the feed port 6 at the bottom of the classification storage box 5 corresponding to the floating mud layer moves to directly above the adaptive connecting pipe 83. The lower end face of the feed port 6 contacts the upper end face of the adaptive connecting pipe 83. During the transverse sliding of the machine body 4, the feed port 6 will press down on the adaptive connecting pipe 83. The adaptive connecting pipe 83 overcomes the elastic force of the elastic element 87 and retracts downward. The control block 85 slides downward along the central connecting rod 86. When the feed port 6 is fully aligned, the downward pressing force disappears, the elastic element 87 rebounds and pushes the control block 85 upward, causing the adaptive connecting pipe 83 to press against the lower end face of the feed port 6, realizing the sealed connection between the adaptive connecting pipe 83 and the feed port 6.

[0037] After docking is completed, the sampling head at the lower end of the detection rod 7 is opened, and the sludge sample inside the floating mud layer is sucked into the internal flow channel of the detection rod 7. The sludge sample passes through the outer pipe 82, the adaptive pipe 83, and the feed inlet 6 in sequence, and is finally sent into the classification storage box 5 corresponding to the floating mud layer. The sludge sample continues to enter the classification storage box 5, and the sample liquid level gradually rises until it completely submerges the temperature sensor and conductivity sensor probe arranged in the inner cavity of the box. The temperature sensor and conductivity sensor fully contact the sludge sample and collect the real-time temperature parameters and conductivity parameters of the sludge layer. The collected physical property parameter signals are uploaded to the main control hardware unit.

[0038] At this time, the raw data receiving module synchronously receives the depth signal from the displacement sensor, the raw detection signal of the silt layer thickness output by the main sensor for silt thickness detection, and the physical property parameters collected by the temperature sensor and the conductivity sensor; the layer mapping module receives the silt layer level identifier output by the level identification module, and uses the identifier as an index to bind the four sets of data: silt sample information, temperature parameters, conductivity parameters, and raw detection signal of silt thickness, and stores the bound set of data in the corresponding layered storage partition of the memory. Subsequently, the stratification coefficient retrieval module retrieves the temperature correction coefficient and conductivity correction coefficient specific to the floating mud layer from the memory based on the floating mud layer level identifier, and sends the two sets of correction coefficients to the stratification compensation calculation module; the stratification compensation calculation module reads the original detection data bound to this level and the field measured environmental parameters from the memory, calls the retrieved correction coefficients to perform compensation calculation, eliminates the detection signal drift caused by the difference in temperature and conductivity of the floating mud layer, and obtains the corrected floating mud layer thickness data; the stratification result output module receives the corrected data, completes the calibration of the floating mud layer stratification interface position, and outputs the true sedimentation thickness of the floating mud layer.

[0039] After the sampling and testing of the floating mud layer is completed, the sampling head of the detection rod 7 is closed, the motor 22 continues to drive the threaded rod 23 to rotate, and the U-shaped block 24 drives the mounting plate 3 and the detection rod 7 to continue to descend. The displacement sensor continuously monitors the depth. When the depth enters the fluidized mud layer area, the layer identification module identifies the current layer as the fluidized mud layer and outputs the corresponding layer identifier. The machine body 4 is driven to slide laterally again, so that the feed port 6 below the classification storage box 5 corresponding to the fluidized mud layer moves to the position of the adaptive connecting pipe 83. During the sliding process, the feed port 6 presses down on the adaptive connecting pipe 83 again to achieve repositioning. After the alignment is completed, the elastic element 87 achieves sealing connection again. The sampling head of the detection rod 7 is opened, and the mud sample of the fluidized mud layer is collected and sent into the corresponding classification storage box 5. The temperature sensor and conductivity sensor in the box collect the environmental physical parameters of the fluidized mud layer. The above process of data reception, data binding, coefficient retrieval, compensation calculation and result output is repeated to complete the sampling and compensation testing of the fluidized mud layer.

[0040] The detection rod 7 continues to be lowered, and the depth signal from the displacement sensor enters the compacted silt layer area. The layer identification module recognizes that the current layer is compacted silt, and drives the machine body 4 to reposition laterally, switching to the feed inlet 6 corresponding to the compacted silt layer to complete the sealing connection. This completes the sampling, property acquisition, data binding, compensation calculation, and result output of the compacted silt layer. After all three layers have been sampled and tested, the motor 22 reverses, the threaded rod 23 rotates in the opposite direction, and the U-shaped block 24 lifts the mounting plate 3 as a whole. The detection rod 7 is lifted away from the riverbed water, and the equipment returns to its initial standby position. The operator can retrieve all the compensated and corrected layer detection results from the memory to complete the inland riverbed silt layer thickness detection operation.

[0041] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A device for detecting the stratification of siltation thickness in inland riverbeds, characterized in that, The device includes a support base, on which a lifting mechanism is mounted. A mounting plate is fixedly connected to the lifting mechanism, and a body is slidably mounted on the mounting plate. The body has multiple sets of sorting and storage boxes inside. Each set of sorting and storage boxes has a temperature sensor and a conductivity sensor arranged in its inner cavity. The temperature sensor and conductivity sensor are used to collect the temperature and conductivity environmental parameters of the sludge samples inside the corresponding sorting and storage box. The detection rod is equipped with a sludge thickness detection main sensor and a displacement sensor. The displacement sensor is used to output the depth position signal of the detection rod, and the sludge thickness detection main sensor is used to output the original sludge thickness detection signal. The machine body is equipped with a main control hardware unit, which is configured with a layered detection environment parameter compensation terminal. The layered detection environment parameter compensation terminal includes a layer identification module, a raw data receiving module, a layer mapping module, a layer coefficient retrieval module, a layer compensation calculation module, and a layer result output module. The layer identification module is used to receive the depth position signal transmitted by the displacement sensor, identify the current silt layer, fluidized mud layer, or compacted silt layer of the detection rod, and output the corresponding layer identifier. The raw data receiving module is used to synchronously receive sample temperature parameters collected by the temperature sensor, sample conductivity parameters collected by the conductivity sensor, and raw detection signal of silt thickness collected by the main sensor for silt thickness detection. The layer mapping module is used to bind the silt sample information, temperature parameters, electrical conductivity parameters and original detection signals of silt thickness of the corresponding layer according to the layer identifier output by the layer identification module, and classify and store them into the corresponding layer storage partition. The layered coefficient retrieval module is used to pre-store three sets of independent temperature correction coefficients and electrical conductivity correction coefficients for floating mud layer, fluidized mud layer, and compacted silt layer, and automatically retrieve the corresponding correction coefficient set for the silt layer according to the real-time layer identifier. The layered compensation calculation module is used to unify temperature and conductivity as correction parameters for each sediment layer, call the layered coefficient to retrieve the corresponding layer correction coefficient output by the module, and perform targeted compensation calculation on the original detection signal of the sediment thickness of the layer to eliminate the detection signal offset caused by temperature differences and mud-water conductivity differences between different sediment layers. The layering result output module is used to calibrate the layering interface position of each silt layer based on the accurate data after compensation and correction by the layering compensation calculation module, and output the detection results of the actual siltation thickness of each layer.

2. The inland riverbed siltation thickness layer detection device according to claim 1, characterized in that: Each of the sorting and storage boxes is provided with a feed inlet at the bottom. A detection rod is provided on one side of the mounting plate. An adaptive connector assembly is mounted on the detection rod. The detection rod can selectively connect to any feed inlet through the adaptive connector assembly to transport the sludge sample collected by the detection rod into the corresponding sorting and storage box.

3. The inland riverbed siltation thickness layer detection device according to claim 2, characterized in that: The adaptive connector assembly includes an outer mounting block, an outer connector, an adaptive connector, a movable channel, a control block, a central connecting rod, and a spring element. The outer mounting block is fixedly mounted on one side of the mounting plate. The outer connector is connected to the detection rod. The movable channel is opened on one side of the outer mounting block. One end of the adaptive connector is movably inserted into the outer connector. One side of the adaptive connector is fixedly connected to the control block. The control block is slidably connected to the movable channel.

4. The inland riverbed siltation thickness layer detection device according to claim 3, characterized in that: The central connecting rod is fixed in the movable channel and extends longitudinally through the control block. The lower end of the control block is fixedly connected to an elastic element.

5. The inland riverbed siltation thickness layer detection device according to claim 4, characterized in that: The elastic element is sleeved on the outer wall of the middle connecting rod, and the lower end of the elastic element is fixedly connected to the bottom of the movable channel cavity.

6. The inland riverbed siltation thickness layer detection device according to claim 1, characterized in that: The lifting mechanism includes a telescopic rod, a motor, a threaded rod, and a U-shaped block. The telescopic rod and the motor are both fixedly connected to the support base, and the motor is fixedly connected to the threaded rod.

7. The inland riverbed siltation thickness layer detection device according to claim 6, characterized in that: The U-shaped block is threaded to the outer wall of the threaded rod, and the upper ends of both the U-shaped block and the telescopic rod are fixedly connected to the bottom end of the mounting plate.

8. The inland riverbed siltation thickness layer detection device according to claim 1, characterized in that: Each group of classified storage boxes is isolated from each other, and each classified storage box is used to store sludge samples of floating mud, fluidized sludge, and compacted sludge layer respectively, so that sludge samples of different sludge layers do not mix with each other.

9. The inland riverbed siltation thickness layer detection device according to claim 1, characterized in that: The main control hardware unit is equipped with a memory, which is electrically connected to the layered detection environment parameter compensation terminal.

10. The inland riverbed siltation thickness layer detection device according to claim 9, characterized in that: The memory pre-stores temperature correction coefficients and electrical conductivity correction coefficients for floating mud, fluidized mud, and compacted silt layers, and provides hierarchical storage partitions for storing data of each layer after being bound by the hierarchical mapping module.

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