Device and system for monitoring scouring by water flow

Abstract

The present disclosure belongs to the technical field of traffic infrastructure safety risk monitoring, and particularly relates to a device and a monitoring system for water flow scouring monitoring. The water flow scouring monitoring device comprises a monitor and N monitoring components, N≥2, wherein: the monitoring components are respectively used for triggering corresponding trigger ports on the monitor, wherein the N monitoring components are arranged in different embedding depths and / or dispersedly arranged at preset points according to different plane positions; the monitor comprises an I / O interface comprising N trigger ports and a microcontroller, which executes the following control logic: according to the plane position distribution, embedding depth level and / or trigger quantity combination of the monitoring point corresponding to the scouring early warning event, the scouring risk level of the monitoring area is determined. In this way, for a specific monitoring area, the three-dimensional monitoring point arrangement is used for comprehensive determination, and the credibility of the scouring risk monitoring and the accuracy of the risk level determination are enhanced.

Description

Technical Field

[0001] This disclosure belongs to the field of traffic infrastructure safety risk monitoring technology, and in particular relates to a device and monitoring system for monitoring water flow erosion. Background Technology

[0002] River scour monitoring technology systems can be classified in several ways. Based on measurement principles, they are mainly divided into acoustic monitoring technology, optical monitoring technology, electromagnetic monitoring technology, and sensor network technology. Based on monitoring methods, they can be divided into contact monitoring and non-contact monitoring. Based on monitoring range, they can be divided into point monitoring and area monitoring. Based on monitoring time characteristics, they can be divided into real-time monitoring and periodic monitoring. Based on equipment deployment methods, they can be divided into fixed monitoring and mobile monitoring.

[0003] In terms of technological maturity, traditional technologies such as ultrasonic depth sounding, pressure sensors, and riverbed stratification and scour sensing sensors have been widely used and are relatively mature; emerging technologies such as fiber optic sensing, radar monitoring, and AI video analysis are developing rapidly and gradually becoming practical; cutting-edge technologies such as digital twins, quantum sensing, and satellite remote sensing are still in the research and development or pilot stage, but they show great application potential.

[0004] While high-precision, all-weather monitoring technologies are constantly being developed and popularized, providing a solid foundation for risk monitoring of critical infrastructure operations, traditional high-precision monitoring equipment faces a series of challenges when monitoring large-scale, dispersed infrastructure such as riverside slopes and bridge foundations. These challenges include high construction costs, large volumes of monitoring data, high analysis difficulty, and relatively high operation and maintenance costs. Given the current situation of a massive amount of existing transportation infrastructure, how to address the erosion monitoring of numerous riverside road slopes and bridge foundations in a low-cost, long-term, and highly reliable manner, and minimize losses after major risks occur, is an urgent problem to be solved.

[0005] Public content

[0006] I. Technical problems to be solved

[0007] This disclosure aims to at least partially solve one of the aforementioned technical problems.

[0008] II. Technical Solution

[0009] The first aspect of this disclosure provides a water flow scour monitoring device. The water flow scour monitoring device includes: a monitor and N monitoring components, where N ≥ 2: wherein:

[0010] The monitoring components are used to trigger the corresponding trigger ports on the monitor. Among the N monitoring components, the scourted devices are arranged in layers according to different burial depths and / or distributed at preset points according to different planar positions.

[0011] The monitor includes:

[0012] The I / O interface includes: N trigger ports, each trigger port triggers a trigger warning event and outputs an electrical trigger signal when mechanically triggered, and each trigger port corresponds to a different port code to map the position and / or burial level of each scourted device;

[0013] The microcontroller obtains the water scouring status of the monitoring point based on whether it receives an electrical trigger signal; based on the water scouring status of the monitoring point, it determines the scouring risk status of the monitoring area covered by the monitoring point.

[0014] The communication module is used to connect to the monitoring center via wired or wireless self-organizing network and to send scour risk status information of the monitoring area consisting of all monitoring points.

[0015] The microcontroller executes the following control logic: it determines the scour risk level of the monitoring area based on the planar location distribution, burial depth level, and / or combination of trigger numbers of the monitoring points that generate scour warning events.

[0016] In some embodiments of this disclosure, the communication module: when the monitoring area is in a normal state, it sends the normal state information of the monitoring point at a low frequency f0; when the monitoring area is in a scour risk state, it switches to sending the scour risk state information of the monitoring point at a high frequency f, where f0 < f; wherein, different low frequency transmission frequencies f0 are used during flood season and non-flood season.

[0017] In some embodiments of this disclosure, the devices to be scoured are arranged in three layers: shallow, middle, and deep, wherein N1 devices are arranged in the shallow layer, N2 devices in the middle layer, and N3 devices in the deep layer, and N1≥N2≥N3≥1. In the control logic of the microcontroller, when fewer than or equal to N1 / 3 shallow monitoring points generate scour warning events, the scour risk is determined to be low; when more than N1 / 3 shallow monitoring points generate scour warning events, or fewer than N2 / 3 middle monitoring points generate scour warning events, the scour risk is determined to be medium; when more than or equal to N2 / 3 middle monitoring points generate scour warning events, or a deep monitoring point generates a scour warning event, the scour risk is determined to be high.

[0018] In some embodiments of this disclosure, the water flow scour monitoring component is installed on the riverbed at the location of the riverside road slope and the foundation of the river-crossing bridge.

[0019] In some embodiments of this disclosure, at least a portion of the connecting lines are laid along the direction of water flow, and the monitor is positioned on the upstream side of the water flow; and / or,

[0020] In some embodiments of this disclosure, when there is a retaining wall on the slope or riverbed surface, the scourd-affected device is embedded in the retaining wall; when there is no retaining wall, the embedment depth H1 of the vertical scour surface of the scourd-affected device satisfies: H1≥5D, where D is the diameter of the protective sleeve.

[0021] In some embodiments of this disclosure, the monitoring component includes: a device to be washed, which is connected to a corresponding trigger port via a connecting line; a connecting line protection guide structure disposed on at least a portion of the outside of the connecting line for protecting and guiding the connecting line; wherein the connecting line can slide inside the connecting line protection guide structure; when the device to be washed moves due to water flow, it mechanically triggers the corresponding trigger port on the monitor via the connecting line, triggering a washing warning event on the monitor.

[0022] In some embodiments of this disclosure, the connecting line protection guide structure includes: a near-ground protective pipe, which is a flexible pipe, sleeved on the outside of at least a portion of the ground section of the connecting line; and a protective sleeve, which is a rigid pipe, sleeved on the outside of the non-ground section of the connecting line, buried in the riverbed where the monitoring point is located on the slope or bridge foundation, with the scouring device located at the end of the protective sleeve away from the trigger port; wherein the near-ground protective pipe and the protective sleeve are set in sections.

[0023] In some embodiments of this disclosure, the device to be flushed is a compressible hollow structure made of elastic material, with metal springs inside. The device to be flushed is initially placed inside the end of the protective sleeve in a compressed state. During installation, it is fed into a preset channel along with the protective sleeve and then pushed out of the protective sleeve, restoring itself to a hollow structure by its own elasticity. The covering layer on the device to be flushed will be flushed by the water flow, thereby triggering a flushing warning event on the connecting line.

[0024] In some embodiments of this disclosure, a connecting wire buckle is provided on the first exposed section of the connecting wire near the trigger port, where the near-ground protective pipe is not fitted. The outer diameter of the connecting wire buckle is larger than the inner diameter of the near-ground protective pipe, and the distance between the connecting wire buckle and the ground protective pipe should be greater than the pulling displacement distance of the connecting wire that triggers the scour warning event.

[0025] In some embodiments of this disclosure, an end cap plate is provided at the upper end of the protective sleeve, a steering ring is provided at the outlet position of the end cap plate, and a protrusion is provided on the top of the end cap plate to connect with the near-ground protective pipe.

[0026] In some embodiments of this disclosure, multiple fasteners are provided on the outer side of the protective sleeve, which fix the protective sleeve to the surface of the soil, revetment structure or bridge foundation.

[0027] In some embodiments of this disclosure, a sealing tube is provided at the lower inner end of the protective sleeve; there is a gap between the sealing tube and the outer protective sleeve; the sealing tube is an inverted sealing tube, and a sealing tube check valve is also provided inside the protective sleeve; the end of the sealing tube is provided with a sealing tube anti-slip inner buckle, and the inner side near the bottom of the protective sleeve is provided with a sealing tube anti-slip outer buckle that cooperates with the anti-slip inner buckle.

[0028] In some embodiments of this disclosure, the device being scourted is a spherical or ellipsoidal hollow structure.

[0029] In some embodiments of this disclosure, the elastic material used to fabricate the flushed device is a polyether-type TPU material.

[0030] In some embodiments of this disclosure, a steel spring is disposed inside the device being flushed.

[0031] In some embodiments of this disclosure, the monitoring component includes: M flushed devices, where M ≥ 2.

[0032] In some embodiments of this disclosure, the connecting wire is a braided rope with ultra-high molecular weight polyethylene fiber as the core layer and polyester fiber as the sheath.

[0033] In some embodiments of this disclosure, the near-ground protective pipe is a PVC flexible hose.

[0034] In some embodiments of this disclosure, the protective sleeve is a PVC rigid pipe or a steel pipe.

[0035] In some embodiments of this disclosure, both the near-ground protective pipe and the protective sleeve are buried in the soil. The near-ground protective pipe is buried and fixed close to the ground, and the protective sleeve is buried and fixed obliquely in the direction of water flow.

[0036] The second aspect of this disclosure provides a water scour monitoring system. The system includes: the water scour monitoring device as described above; a monitoring center communicatively connected to the water scour monitoring component; and a verification device unit for acquiring on-site image information. When the monitoring center receives scour risk information, it triggers the verification device unit to acquire on-site image information and, in conjunction with the on-site image information and the spatial distribution information of the trigger monitoring points, verifies and determines the scour risk level. If the verification result is a false alarm, the monitoring center sends a command to the water scour monitoring component to restore the low-frequency transmission mode. If the verification result is a valid alarm and risk handling is completed, the monitoring center sends a command to the water scour monitoring component to restore the low-frequency transmission mode. The verification device unit is normally in a sleep or low-power standby state, but it is activated when triggered by the monitoring center to acquire on-site image information.

[0037] III. Beneficial Effects

[0038] As can be seen from the above technical solution, this disclosure has at least one of the following beneficial effects compared to the prior art:

[0039] (1) The devices to be washed are arranged in a layered and segmented manner, and the location of the devices to be washed is mapped by means of monitoring port coding and other methods.

[0040] In this disclosure, the devices to be eroded can be deployed at different points and in different layers, offering flexible setup and lower installation requirements. This configuration, through the deployment of three-dimensional monitoring points in a specific monitoring area, allows for comprehensive assessment, enhancing the reliability of erosion risk monitoring and the accuracy of risk level determination.

[0041] It should be noted that a single monitor can connect to several devices that are being eroded. At least some of these devices are arranged in layers at different burial depths and dispersed at different planar locations. By mapping the positions of the eroded devices through methods such as monitoring port coding, the severity of erosion can be predicted using the location of the erosion monitoring points.

[0042] (2) The amount of monitoring data is small and the power consumption of the equipment is low.

[0043] In this disclosure, during the scouring monitoring process, when the water flow does not scour the device being scoured, the monitor is preset to a sleep mode, but should send status information representing normal equipment operation at an extremely low frequency (e.g., once every 12 hours, which can be adjusted as needed; during flood season, it can be adjusted to once every 2 hours). When the device being scoured triggers a risk event at the monitoring port, the monitoring control unit is prompted to send a high-frequency warning message (e.g., 1Hz or higher) to the monitoring center. This warning message remains until it has been properly handled, and then the high-frequency information feedback is deactivated through an approval process, minimizing the amount of data monitored and transmitted.

[0044] With this setup, the scour monitoring based on the scour risk event triggering mechanism performs low-frequency device path monitoring under normal conditions. When scour occurs to a certain extent, the scour of the scourted device triggers the risk event triggering mechanism at the monitoring port, prompting the monitoring control unit to send high-frequency warning information, effectively reducing the amount of monitoring data.

[0045] In addition, it is basically in a dormant state under normal conditions. At the same time, the annual flood season is generally relatively short and the number of rainstorm events is even more limited, resulting in a low alarm frequency and low overall power consumption.

[0046] (3) Conduct risk review of the equipment unit to improve reliability.

[0047] In this disclosure, after a risk warning is fed back to the monitoring center, the monitoring center simultaneously triggers or coordinates the verification equipment unit to collect on-site image information, thereby enhancing the accuracy of risk assessment. When existing on-site cameras can be coordinated, it is not necessary to specifically set up such a verification equipment unit.

[0048] (4) Compressible elastic hollow structure

[0049] In this disclosure, the device to be washed adopts a hollow structure in the middle, which makes it easy to amplify the effect of water flow impact when the device is exposed. When the device to be washed is made of elastic material, it can be made appropriately large, and steel springs or the like can be added to the elastic material to enhance the resilience of the device to be washed.

[0050] (5) The entire equipment is easy to install, maintain and replace.

[0051] In this disclosure, the connecting wire clip can prevent the connecting wire from sliding into the connecting wire protection tube due to accidental factors, and also prevent low-risk scouring from taking away the scouring components, thereby improving the reuse rate of equipment components.

[0052] When monitoring the scour of bridge foundations in waterways, the protective sleeves of the fixtures must be securely fixed to prevent them from failing before the scourted components.

[0053] The end cap plate acts as a top seal to prevent soil from falling into the protective sleeve. A protrusion at the top of the end cap plate connects to the near-ground protective pipe. A steering ring is installed at the outlet of the end cap plate to facilitate smooth turning of the connecting line.

[0054] At the bottom of the protective sleeve, an inverted sealing tube is installed, with an anti-slip inner buckle at the end of the sealing tube and an anti-slip outer buckle near the bottom of the protective sleeve. A circular hole is drilled at the center of the bottom of the sealing tube, and the outlet hole is ground smooth. If it is necessary to insert the elastic scouring component into the protective sleeve, a check valve for the sealing tube is installed, ensuring that the elastic scouring component can be inserted into the protective sleeve.

[0055] In this disclosure, the water flow scour monitoring device is easy to install, maintain, and replace: the standardized, simple monitoring device is easy to install and replace, which can greatly reduce the difficulty and cost of equipment maintenance. In addition, the device is simple, has low installation difficulty, generates less monitoring data, and is easy to maintain, which can effectively reduce the existing large-scale, decentralized monitoring costs of scour along riverside road slopes and the foundations of river-crossing bridges. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the structure of the water flow scour monitoring device according to an embodiment of this disclosure.

[0057] Figure 2 and Figure 3 They are respectively Figure 1 Enlarged views of parts A and B of the water flow scour monitoring device shown.

[0058] Figure 4 For monitoring the erosion of riverside road slopes Figure 1The diagram shows a plan view and an elevation view of the arrangement of the scourd-affected devices in the water flow scour monitoring device.

[0059] Figure 5 For cross-river foundation scour monitoring scenarios Figure 1 The diagram shows a plan view and an elevation view of the arrangement of the scourd-affected devices in the water flow scour monitoring device.

[0060] Figure 6 for Figure 1 The diagram shows the structure of the monitor in the water flow scour monitoring device.

[0061] Figure 7 This is a flowchart illustrating the workflow of the water flow scour monitoring system according to an embodiment of this disclosure. Detailed Implementation

[0062] To address the shortcomings of existing technologies, this disclosure relates to a device and system for monitoring water erosion. Erosion-prone devices are embedded at multiple points and in layers at erosion-prone locations and connected to a monitor via connecting lines. When slopes, revetments, or riverbed cover are eroded away by water flow, the exposed erosion-prone devices are subjected to erosion, triggering port events on the connecting lines. The monitor then switches from sending low-frequency status information to sending high-frequency warning information. Through multi-point, multi-layer deployment and trigger combinations, the erosion range, erosion depth, and risk level can be comprehensively determined, and on-site image verification can be performed in conjunction with verification equipment. This solution offers advantages such as low power consumption, small data volume, flexible deployment, low cost, ease of installation, easy maintenance, easy replacement, and suitability for long-term monitoring.

[0063] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0064] In one exemplary embodiment of this disclosure, a water erosion monitoring device for riverside road slopes and river-crossing bridge foundations is provided. It should be noted that the innovations of this embodiment are as follows:

[0065] ①The structure of the monitoring components, especially the components that are being washed away, the protective sleeves, and the near-ground protective pipes;

[0066] ② Multiple monitoring components are set up in layers according to different burial depths and dispersed in different planar locations. The microcontroller executes the following control logic: it determines the scour risk level of the monitoring area based on the planar location distribution, burial depth layer and / or trigger number combination of the monitoring points that generate scour warning events.

[0067] Those skilled in the art should understand that although this embodiment includes the two innovative points mentioned above, this disclosure is not limited thereto. In some embodiments of this disclosure, only the first innovative point may be included; in other embodiments of this disclosure, only the second innovative point may be included. These embodiments can partially implement this disclosure and are also within the protection scope of this disclosure.

[0068] In this embodiment, the water flow scour monitoring device is installed on the riverbed at the location of the riverside road slope and the foundation of the river-crossing bridge for water flow scour monitoring. Figure 1 This is a schematic diagram of the structure of the water flow scour monitoring device according to an embodiment of this disclosure. Figure 2 and Figure 3 They are respectively Figure 1 Enlarged views of parts A and B of the water flow scour monitoring device shown.

[0069] As shown in the figure, the monitoring device in this embodiment generally includes a monitor and multiple monitoring components. The monitor consists of a monitoring control unit and a monitoring port. The monitor is installed in a stable and safe location on the upstream water flow side. The monitoring components include: the scourd-affected devices, connecting lines, and a protective guide structure for the connecting lines. The scourd-affected devices are buried at points in locations susceptible to scour, and the connecting lines connect the monitor to the scourd-affected devices. The monitoring device can be connected to the monitoring system via a wired or wireless self-organizing network. Simultaneously, verification equipment units (such as cameras) can be set up as needed to collect image information for on-site risk verification.

[0070] Specifically, the water flow scour monitoring device in this embodiment includes:

[0071] The monitor includes a monitoring control unit and N trigger ports, where N≥1;

[0072] There are N monitoring components, including:

[0073] The device being flushed is connected to the corresponding trigger port via a connecting wire;

[0074] A protective guide structure for connecting wires is provided on at least a portion of the outside of the connecting wires for the purpose of protecting and guiding the connecting wires.

[0075] The connecting line can slide inside the connecting line protection guide structure; when the device being scoured is moved by the scour, it mechanically triggers the corresponding trigger port on the monitor through the connecting line, triggering the scour warning event of the monitor.

[0076] In this embodiment, the monitor operates using a scour risk event triggering mechanism. When the slope or riverbed is scoured by water flow and the corresponding scourted device is scoured, the monitoring port event is triggered by driving the connecting line, which triggers the corresponding scour alarm. The monitoring control unit sends high-frequency warning information to the monitoring center.

[0077] The components of this embodiment will be described in detail below.

[0078] It should be noted that because river scouring is a slow and long-term process, special attention needs to be paid to the durability of the equipment and the replaceability of its components, especially the durability and replaceability of the connecting lines buried in the soil and the components being scoured.

[0079] In this embodiment, the device to be washed adopts a hollow structure in the middle, which allows for amplification of the impact of flowing water when the device is exposed. When the device to be washed is made of elastic material, it can be made appropriately large, and steel springs can be added to the elastic material to enhance its resilience. Installation can be performed after drilling is complete. The elastic device to be washed is first compressed and inserted into the bottom of the protective sleeve, then fed into the pre-drilled channel along with the protective sleeve. Once in place, the device to be washed is pushed out of the protective sleeve, and under the action of elasticity, it springs back to its original shape. The covering layer on the device to be washed will be subjected to the scouring action of the flowing water, thereby triggering a scouring warning event on the connecting wire.

[0080] Specifically, the device to be washed can be made into a spherical or ellipsoidal hollow structure, and the elastic material used to make the device is polyether-type TPU material. Furthermore, M hollow structures can be connected end to end to increase the impact force of the water flow after exposure.

[0081] In this embodiment, polyether-type TPU material is used to fabricate the flushing device, but this disclosure is not limited to this. In other embodiments of this disclosure, other elastic materials, such as rubber, can also be used to fabricate the flushing device. Similarly, the spring inside the flushing device can be made of other elastic metal materials, or the metal spring can be omitted, all of which can achieve the purpose of this disclosure and are also within the protection scope of this disclosure.

[0082] In specific deployments, when there is a protective lining on the slope or riverbed surface, the scourd-affected device is embedded in the lining; when there is no protective lining, the embedment depth H1 of the scourd-affected device on the vertical scour surface satisfies: H1≥5D, where D is the diameter of the protective sleeve, and is determined comprehensively in conjunction with scour calculations, etc.

[0083] In this embodiment, the connecting wire is required to have certain strength and durability to ensure normal operation within its service life. Specifically, the connecting wire is a braided rope with ultra-high molecular weight polyethylene fiber as the core layer and polyester fiber as the sheath. Furthermore, it is recommended that the connecting wire be buried before connecting to the monitor to minimize accidental interference from external environmental factors. In specific deployment, at least part of the connecting wire is laid along the direction of water flow, and the monitor is installed on the upstream side of the water flow.

[0084] Those skilled in the art should understand that a protective guide structure should be provided between the connecting line and the device being flushed to protect the connecting line from environmental interference as much as possible, and to ensure that the flushed device can be triggered in a timely manner when it is flushed by running water. In this embodiment, the protective guide structure includes: a near-ground protective pipe and a protective sleeve.

[0085] Near-ground protective conduits serve to protect connecting cables when they are buried near the ground or laid close to the bridge foundation surface. They also isolate the connecting cables from the soil or bridge foundation structure, allowing the connecting cables to move more smoothly when subjected to scour. Near-ground protective conduits require both a certain degree of resistance to compression and flexibility for easy installation; PVC flexible conduits are suitable examples. In terms of placement, the near-ground protective conduit is fitted over the outer side of the ground section of the connecting cable.

[0086] The protective sleeve protects and isolates the connecting line in the non-ground area, ensuring that the connecting line can be pulled smoothly after the scourted device is subjected to scour. The protective sleeve needs to have certain strength, rigidity, and durability. The diameter can be selected according to requirements, such as controlling the minimum diameter when the scourted device compresses through, and its diameter should not be too large to reduce the impact of water flow on the protective sleeve during bridge foundation scour monitoring. Specifically, the protective sleeve can be made of rigid PVC pipe. In terms of placement, the protective sleeve is sleeved on the outside of the non-ground section of the connecting line and buried in the slope of the monitoring point or in the riverbed where the bridge foundation is located. The scourted device is located at the end of the protective sleeve away from the trigger port.

[0087] In this embodiment, both the near-surface protective pipe and the protective sleeve are buried in the soil. The near-surface protective pipe is buried close to the ground and fixed, while the protective sleeve is buried obliquely in the direction of water flow. The near-surface protective pipe and the protective sleeve are installed in sections.

[0088] In this embodiment, a connector clip is provided on the first exposed section of the connector near the trigger port, where the ground-level protective tube is not fitted. The outer diameter of the connector clip is larger than the inner diameter of the ground-level protective tube, and the distance between the connector clip and the ground-level protective tube should be greater than the pulling displacement distance that triggers the scour warning. This connector clip can prevent the connector from slipping into the protective tube due to accidental factors, and also prevent low-risk scour from carrying away the scourted components, thereby improving the reusability of equipment components.

[0089] In this embodiment, multiple fasteners are provided on the outer side of the protective sleeve to fix the protective sleeve to the soil, revetment structure, or bridge foundation surface. In actual scenarios, multiple fasteners can be deployed as needed, especially when monitoring bridge foundation scour in river channels, to ensure that the protective sleeve is firmly fixed and to prevent the protective sleeve from failing before the scourted device.

[0090] In this embodiment, an end-sealing plate is provided at the upper end of the protective sleeve. This end-sealing plate serves to seal the top, preventing soil from falling into the protective sleeve. A protrusion at the top of the end-sealing plate connects to the near-ground protective pipe. A steering ring is provided at the outlet of the end-sealing plate to facilitate smooth turning of the connecting line.

[0091] In this embodiment, a 20-30cm inverted sealing tube is installed at the bottom of the protective sleeve. Its outer diameter can be slightly smaller than the inner diameter of the protective sleeve by about 10mm. An anti-slip inner buckle is installed at the end of the sealing tube, and an anti-slip outer buckle is installed near the bottom of the protective sleeve on its inner side. The anti-slip buckle height is about 3-4mm, leaving a gap of about 1-2mm between it and the tube wall. A circular hole is opened at the center of the bottom of the sealing tube, with a diameter about 3mm larger than the diameter of the connecting wire, and the outlet hole is polished smooth. If it is necessary to insert the elastic scouring component into the protective sleeve, a sealing tube check valve is installed, ensuring that the elastic scouring component can be inserted into the protective sleeve. Otherwise, a sealing tube check valve can be installed when the bottom of the sealing tube is flush with the bottom of the protective sleeve to prevent the sealing tube from retracting into the protective sleeve under external pressure.

[0092] As explained above, the strength and durability of the connecting wire and the device being scouted are crucial to ensure their effectiveness during the monitoring period. To enhance the sensitivity of the connecting wire in triggering scour risks, an external sleeve can be installed. The sleeve and the connecting wire should be kept as smooth as possible to ensure that the connecting wire can be smoothly moved when the device being scouted is subjected to scour, thus triggering the scour risk port event. Simultaneously, the shape and weight of the device being scouted should be conducive to the connecting wire effectively triggering the monitoring port event through the scour action.

[0093] More importantly, the water scour monitoring device in this embodiment is easy to install, maintain, and replace: the standardized and simple monitoring device is easy to install and replace, which can greatly reduce the difficulty and cost of equipment maintenance. In addition, the device is simple, has low installation difficulty, generates less monitoring data, and is easy to maintain, which can effectively reduce the existing large-scale, decentralized monitoring costs of scour along riverside road slopes and bridge foundations.

[0094] It should be noted that a single monitor can connect to several devices that are being eroded. At least some of these devices are arranged in layers at different burial depths and dispersed at different planar locations. By mapping the positions of the eroded devices through methods such as monitoring port coding, the severity of erosion can be predicted using the location of the erosion monitoring points.

[0095] Take the monitoring of the slope of a conventional riverside road as an example. Figure 4 For monitoring the erosion of riverside road slopes Figure 1The diagram shows a plan view and an elevation view of the scour components in the water flow scour monitoring device. As shown, the N monitoring components are arranged in three layers at different depths: shallow, middle, and deep. The specific depth is determined by a combination of factors, including hydrogeological conditions and engineering environment.

[0096] As shown in the figure, the device to be scoured is placed in a location relatively susceptible to scour. The connecting wire should be laid along the direction of water flow and possess sufficient strength and durability. It should be protected and secured to prevent general damage and disturbance, while ensuring that the connecting wire can easily trigger an event at the monitoring port when the device is scoured, prompting a high-frequency alarm from the monitoring control unit. When there is revetment on the slope or riverbed, shallow scoured devices can be buried close to the bottom of the revetment. When there is no revetment, a suitable burial depth should be ensured. Generally, the burial depth H1 should meet the following requirement: H1≥5D, where D is the diameter of the protective sleeve. The water flow scour monitoring device is connected to the monitoring system via wired cable or wireless networking. Ensure the monitor is placed in a relatively stable and safe location and properly protected.

[0097] Taking cross-river foundation scour monitoring as an example, Figure 5 For cross-river foundation scour monitoring scenarios Figure 1 The diagram shows a plan view and an elevation view of the water flow scour monitoring device. As shown, the N monitoring components are arranged in three layers: shallow, middle, and deep.

[0098] Figure 5 In this context, L0, L1, and L2 are specifically determined by comprehensive factors such as scour calculation analysis, hydrogeology, and engineering environmental characteristics. The number of layers can also be adjusted according to actual monitoring needs. When the connecting line is not attached to any structure, a connecting line protection device with sufficient scour resistance (such as a PVC pipe or steel pipe) should be installed and fixed to ensure that the connecting line does not fail before the device being scoured.

[0099] Figure 6 for Figure 1 The diagram shows the structure of the monitor in the water flow scour monitoring device. Figure 6 As shown, the monitor includes:

[0100] The I / O interface includes an IN interface with N trigger ports, each of which outputs an electrical trigger signal when mechanically triggered; and an OUT interface that connects to the communication module.

[0101] The microcontroller determines the status of the monitoring point based on whether it receives an electrical trigger signal: if no electrical trigger signal is received, it is determined to be in a normal state; if an electrical trigger signal is received, it is determined to have generated a scour warning event; and based on the scour risk status of the monitoring point, it determines the scour risk status of the monitoring area.

[0102] The communication module is used to connect to the monitoring center via wired or wireless self-organizing network, and to send the scour risk status information of the monitoring area consisting of all monitoring points to the monitoring center.

[0103] The microcontroller is used to execute the following control logic: determine the scour risk level of the monitoring area based on the planar location distribution, burial depth level and trigger number combination of the monitoring points that generate scour warning events.

[0104] As shown in the figure, the I / O interface and the microcontroller communicate with each other via a bus controller. The clock module, RAM memory, and risk-triggered event transmission control module provide hardware support for the microcontroller. Preferably, the monitor and the detection center are connected wirelessly. In this case, the communication module includes a wireless network output module and a wireless network antenna.

[0105] In this disclosure, by deploying the scourted devices at multiple points and layering them with different scour depths, different scour risk levels at different points can be monitored. As mentioned earlier, the scourted devices of the N monitoring components are deployed in three layers: shallow, middle, and deep. Specifically, N1 devices are deployed in the shallow layer, N2 in the middle layer, and N3 in the deep layer, where N1 ≥ N2 ≥ N3 ≥ 1, and N1 + N2 + N3 = N. In this embodiment, in the control logic of the microcontroller,

[0106] ①Low risk

[0107] When a three-layer system is set up, if a few outermost components are eroded, it represents a general erosion risk level. Under low-risk conditions, the monitor will alert maintenance personnel to pay close attention and conduct on-site inspections.

[0108] Specifically, in this embodiment, when fewer than or equal to N1 / 3 shallow monitoring points generate scour warning events, the scour risk is determined to be low.

[0109] ② Medium risk

[0110] When a certain number or part of the intermediate layer is eroded by the erosion device, it represents a high level of erosion risk. On-site inspections should be organized in a timely manner, and traffic guidance and restrictions should be implemented.

[0111] Specifically, in this embodiment, when more than N1 / 3 shallow monitoring points generate scour warning events, or when fewer than N2 / 3 mid-layer monitoring points generate scour warning events, the scour risk is determined to be medium risk.

[0112] ③ High risk

[0113] When a certain number of components or underlying components are destroyed by erosion, it indicates a significant erosion safety risk. The situation should be reviewed in real time, and an emergency response should be initiated as needed, including traffic disruptions, to prevent loss of life and property.

[0114] Specifically, in this embodiment, when scour warning events are generated at more than or equal to N2 / 3 mid-level monitoring points, or when scour warning events are generated at deep-level monitoring points, the scour risk is determined to be high.

[0115] It should be noted that this setup is merely an example. In other embodiments of this disclosure, the number of scour layers can be determined comprehensively based on factors such as the environmental characteristics and importance of the monitoring area.

[0116] In this embodiment, in the communication module: when the monitoring area is in a normal state, the normal state information of the monitoring point is sent out at a low frequency f0; when the monitoring area is in a state of scour risk, the risk state information of the monitoring point is switched to be sent at a high frequency f, where f0 < f; wherein, different low frequency transmission frequencies f0 are used during flood season and non-flood season.

[0117] Based on the above description, the water flow scour monitoring device in this embodiment also has the following characteristics:

[0118] ① Small amount of monitoring data and low equipment power consumption

[0119] During scouring monitoring, when the water flow does not scour the device being scoured, the monitor is preset to sleep mode, but should send status information representing normal equipment operation at an extremely low frequency (e.g., once every 12 hours, which can be adjusted as needed; during flood season, it can be adjusted to once every 2 hours). When the device being scoured triggers a risk event at the monitoring port, the monitoring control unit will trigger a high-frequency warning message (e.g., 1Hz or higher) to the monitoring center. This warning message will remain until it has been properly handled, and then the high-frequency information feedback will be deactivated through an approval process, minimizing the amount of data monitored and transmitted.

[0120] With this setup, the scour monitoring based on the scour risk event triggering mechanism performs low-frequency device path monitoring under normal conditions. When scour occurs to a certain extent, the scour of the scourted device triggers the risk event triggering mechanism at the monitoring port, prompting the monitoring control unit to send high-frequency warning information, effectively reducing the amount of monitoring data.

[0121] In addition, it is basically in a dormant state under normal conditions. At the same time, the annual flood season is generally relatively short and the number of rainstorm events is even more limited, resulting in a low alarm frequency and low overall power consumption.

[0122] ② Multi-point, multi-layer scour three-dimensional monitoring

[0123] In this embodiment, by setting up multiple points and multiple layers of several scouring devices, the scouring risk at different points and different scouring layer depths can be monitored simultaneously.

[0124] This setup allows for the deployment of equipment in different locations and layers, offering flexibility and lower installation requirements. Multi-point collaborative monitoring results in more accurate assessments: for specific monitoring areas, a comprehensive assessment through the deployment of three-dimensional monitoring points enhances the reliability of scour risk monitoring and the accuracy of risk level determination.

[0125] ③ Scour risk classification monitoring

[0126] In this embodiment, multi-point, multi-layer, three-dimensional monitoring of riverside road slopes or river-crossing bridge foundations can better reflect the true situation of scour and more accurately reflect the actual scour risk level.

[0127] By strategically deploying monitoring points and layers for the devices being eroded, a multi-level, three-dimensional monitoring system can be implemented to simultaneously monitor erosion safety risks. Combined with erosion warning events triggered by different monitoring ports, the system can be comprehensively categorized into several erosion risk levels. For example, if only a small number of devices are eroded, primarily concentrated in shallow areas, it is defined as a general erosion risk level, prompting maintenance personnel to pay close attention and conduct on-site inspections. If a large number of shallow devices or some mid-level devices are eroded, it is defined as a significant erosion risk level, requiring timely on-site inspections and traffic guidance and restrictions. If most mid-level devices or some deep-level devices are eroded, it is defined as a major erosion safety risk, requiring real-time verification and, as needed, initiating emergency response and traffic closures. In application, the number of monitoring layers and the number of erosion risk level classifications can be adjusted according to specific circumstances to adapt to the needs of the overall monitoring system.

[0128] According to a second aspect of this disclosure, based on the above-described water flow scour monitoring device, this disclosure also provides a water flow scour monitoring component. This water flow scour monitoring component is the water flow scour monitoring component in the actual embodiment of the above-described water flow scour monitoring device. In an exemplary embodiment of this disclosure, the water flow scour monitoring component includes:

[0129] The device being washed is connected to the trigger port on the monitor via a connecting wire;

[0130] A protective guide structure for the connecting line is provided on at least part of the outside of the connecting line, which protects and guides the connecting line;

[0131] The connecting wire can slide inside the connecting wire protective guide structure; when the device being washed is moved by the washing, it mechanically triggers the trigger port on the monitor through the connecting wire.

[0132] In this embodiment, the connecting line protection guide structure includes: a protective sleeve, which is a rigid tube, sleeved on the outside of the non-ground section of the connecting line, buried in the riverbed where the monitoring point is located on the slope or bridge foundation, and the scouring device is located at the end of the protective sleeve away from the trigger port.

[0133] In this embodiment, the flushing device is a compressible hollow structure, which is initially set in a compressed state on the inner side of the end of the protective sleeve; during installation, it is sent into the preset channel along with the protective sleeve, and then pushed out of the protective sleeve, and recovers to a hollow structure by its own elasticity.

[0134] In this embodiment, the connecting line protection guide structure includes: a near-ground protective pipe, which is a flexible pipe, sleeved on the outside of at least a portion of the ground section of the connecting line, and the near-ground protective pipe and the protective sleeve are set in sections.

[0135] In this embodiment, the flushing device is a compressible hollow structure made of an elastic material, with a metal spring inside. Specifically, the elastic material used to make the flushing device is polyether-type TPU material; a steel spring is disposed inside the flushing device. And / or,

[0136] In another example of this disclosure, the monitoring component includes M flushed devices, where M ≥ 2. This configuration increases the impact force of the flowing water after the flushed devices are exposed.

[0137] According to a third aspect of this disclosure, based on the above-described water scour monitoring device, this disclosure also provides a water scour monitoring system. In an exemplary embodiment of this disclosure, the water scour monitoring system includes:

[0138] The above-mentioned water flow erosion monitoring device;

[0139] The monitoring center is connected in communication with the water flow erosion monitoring device;

[0140] The verification equipment unit is used to acquire on-site image information;

[0141] The monitor operates using a scour risk event triggering mechanism. When a slope or riverbed is scoured by water flow, and the corresponding scourted device is scourted, the event at the monitoring port is triggered by the connecting line, initiating a corresponding scour alarm. The monitoring control unit sends a high-frequency warning message to the monitoring center. When the monitoring center receives the scour risk information, it triggers the verification device unit to collect on-site image information and verifies the scour risk level by combining the on-site image information and the spatial distribution information of the trigger monitoring points. If the verification result is a false alarm, the monitoring center sends a command to the water flow scour monitoring device to restore the low-frequency transmission mode. If the verification result is a true alarm and the risk handling is completed, the monitoring center sends a command to the water flow scour monitoring device to restore the low-frequency transmission mode. The verification device unit is in a dormant or low-power standby state under normal conditions, and it enters the working state to collect on-site image information when triggered by the monitoring center.

[0142] Figure 7 This is a flowchart illustrating the workflow of the water flow scour monitoring system according to an embodiment of the present disclosure. As shown in the figure, the working process of the water flow scour monitoring system in this embodiment includes:

[0143] Step A: Under normal operating conditions, the monitor is in a "sleep" state and sends channel detection status information representing normal device operation at a low frequency (e.g., once every 12 hours, which can be adjusted according to specific needs).

[0144] Step B: When the device being flushed is flushed and triggers a risk event at the monitoring port, the monitoring control unit, which is in a "dormant" state, triggers an alarm.

[0145] Step C: The monitor sends a high-frequency warning message (e.g., 1Hz) to the monitoring center via the communication module.

[0146] Step D: The high-frequency risk feedback information is coordinated by the monitoring center to collect and transmit on-site image information to the verification equipment unit for the verification of the corresponding risk event. If it is confirmed to be a false alarm, proceed to step G; if a risk event is confirmed to have occurred, proceed to step E.

[0147] If the alarm is confirmed to be false, maintenance personnel should be promptly arranged to conduct on-site verification, inspect the equipment for malfunction, and determine the cause of the malfunction.

[0148] Step E: Conduct risk management;

[0149] Step F: Verify whether the risk has been eliminated. If yes, proceed to step G; otherwise, repeat step E.

[0150] Step G: The monitoring center will adjust the monitoring device's system to normal status and restore the low-frequency feedback mode.

[0151] As can be seen from the above description, in this embodiment, after the risk warning is fed back to the monitoring center, the monitoring center simultaneously triggers or coordinates the verification equipment unit (when existing cameras on site can be coordinated, it is not necessary to set up such a verification equipment unit) to collect on-site image information, thereby enhancing the accuracy of risk assessment.

[0152] This concludes the description of the various embodiments of this disclosure. Based on the above description, those skilled in the art should have a clear understanding of this disclosure.

[0153] It should be noted that for some implementation methods, if they are not key contents of this disclosure and are well known to those skilled in the art, they are not described in detail in the accompanying drawings or text due to space limitations. In such cases, relevant prior art can be referred to for understanding.

[0154] Unless explicitly stated otherwise, the numerical values ​​and ranges mentioned in this disclosure are approximate and can be changed according to the content of this disclosure. Specifically, all figures in the specification and claims indicating composition, reaction conditions, etc., should be understood to be modified by the term "about" in all cases, meaning that they include variations of ±10% in certain embodiments.

[0155] Those skilled in the art will understand that the modules or steps of this disclosure described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby allowing them to be stored in a storage device for execution by a computing device, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, this disclosure is not limited to any particular combination of hardware and software.

[0156] This disclosure can also be implemented as a device or apparatus program (e.g., a computer program and a computer program product) for performing part or all of the methods described herein. Such an implementation of the disclosure may be stored on a computer-readable medium or may take the form of one or more signals. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0157] This disclosure can be implemented using hardware comprising several different elements and a suitably programmed computer. Various component embodiments of this disclosure can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Physical implementations of the hardware structure include, but are not limited to, physical devices, including, but not limited to, transistors, memristors, DNA computers, microcontrollers, microprocessors, or digital signal processors (DSPs). Furthermore, this disclosure is not directed to any particular programming language. It should be understood that the contents of this disclosure can be implemented using various programming languages, and the description of specific languages ​​herein is for the purpose of disclosing the best mode of implementation of this disclosure.

[0158] Those skilled in the art will understand that in the claims and specification of this disclosure, the word "comprising" does not exclude the presence of elements (or steps) not listed in the claims. The word "a" or "an" preceding an element (or step) does not exclude the presence of a plurality of such elements (or steps).

[0159] Furthermore, the above embodiments are provided only to enable this disclosure to meet legal requirements, and this disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0160] Similarly, it should be understood that, for the sake of brevity, in the foregoing description of exemplary embodiments of this disclosure, various features of this disclosure are sometimes grouped together in a single embodiment, figure, or description thereof. However, this approach to disclosure should not be construed as reflecting an intention that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as reflected in the claims, each aspect of the disclosure comprises fewer than all the features of the preceding single embodiment. Furthermore, embodiments may be used in combination with each other or with other embodiments based on design and reliability considerations; that is, technical features from different embodiments can be freely combined to form more embodiments. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of this disclosure.

[0161] The above specific embodiments have provided a detailed description of the purpose, technical means, and beneficial effects of this disclosure. It should be understood that the purpose of the detailed description is to enable those skilled in the art to understand this disclosure more clearly, and it is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A water flow erosion monitoring device, characterized in that, include: The monitor and N monitoring components, where N≥2: Each monitoring component is used to trigger the corresponding trigger port on the monitor. Among the N monitoring components, the scourted devices are arranged in layers according to different burial depths, and / or distributed at preset points according to different planar positions. The monitor includes: The I / O interface includes: N trigger ports, each trigger port triggers a trigger warning event and outputs an electrical trigger signal when mechanically triggered, and each trigger port corresponds to a different port code to map the position and / or embedding level of each of the scourted devices; The microcontroller obtains the water scouring status of the monitoring point based on whether it receives an electrical trigger signal; based on the water scouring status of the monitoring point, it determines the scouring risk status of the monitoring area covered by the monitoring point. The communication module is used to connect to the monitoring center via wired or wireless self-organizing network and to send scour risk status information of the monitoring area consisting of all monitoring points. The microcontroller executes the following control logic: it determines the scour risk level of the monitoring area based on the planar location distribution, burial depth level, and / or trigger number combination of the monitoring points that generate scour warning events.

2. The water flow scour monitoring device according to claim 1, characterized in that, In the communication module: When the monitoring area is in a normal state, the normal state information of the monitoring points is sent out at a low frequency f0. When the monitoring area is in a state of scour risk, the system switches to sending the scour risk status information of the monitoring points at a high frequency f, where f0 < f. Different low-frequency transmission frequencies f0 are used during flood season and non-flood season.

3. The water flow scour monitoring device according to claim 1, characterized in that, The components to be washed are arranged in three layers: shallow, middle and deep. N1 components are arranged in the shallow layer, N2 components in the middle layer and N3 components in the deep layer, where N1≥N2≥N3≥1. In the control logic of the microcontroller When fewer than or equal to N1 / 3 shallow monitoring points generate scour warning events, the scour risk is judged to be low. When more than N1 / 3 shallow monitoring points generate scour warning events, or when fewer than N2 / 3 mid-layer monitoring points generate scour warning events, the scour risk is judged as medium risk. When scour warning events are generated at N2 / 3 or more mid-level monitoring points, or when scour warning events are generated at deep-level monitoring points, the scour risk is judged to be high.

4. The water flow scour monitoring device according to claim 1, characterized in that, The water flow scour monitoring component is installed on the riverbed at the location of the riverside road slope and the foundation of the bridge crossing; and / or, At least a portion of the connecting lines are laid along the direction of water flow, and the monitor is positioned on the upstream side of the water flow; and / or, When there is a retaining wall on the slope or riverbed surface, the scourd-affected device is embedded in the retaining wall; when there is no retaining wall, the embedment depth H1 of the scourd-affected device on the vertical scour surface satisfies: H1≥5D, where D is the diameter of the protective sleeve.

5. The water flow scour monitoring device according to claim 1, characterized in that, The monitoring components include: The device being flushed is connected to the corresponding trigger port via a connecting wire; A connecting line protection and guidance structure is disposed on at least a portion of the outside of the connecting line for protecting and guiding the connecting line; The connecting line can slide inside the connecting line protective guide structure; when the device being washed is moved by the water flow, it mechanically triggers the corresponding trigger port on the monitor through the connecting line, triggering the monitor's washout warning event.

6. The water flow scour monitoring device according to claim 5, characterized in that, The connecting line protective guide structure includes: The near-ground protective pipe is a flexible pipe that is fitted over at least a portion of the ground section of the connecting line. The protective sleeve is a rigid pipe that is sleeved on the outside of the non-ground section of the connecting line and buried in the riverbed where the monitoring point is located, on the slope or bridge foundation. The scouring device is located at the end of the protective sleeve away from the trigger port. The near-ground protective pipe and the protective sleeve are set in sections.

7. The water flow scour monitoring device according to claim 6, characterized in that, The device being flushed is a compressible hollow structure made of elastic material, with metal springs inside. For the device being flushed: it is initially placed inside the end of the protective sleeve in a compressed state; during installation, it is sent into the preset channel along with the protective sleeve, and then pushed out of the protective sleeve, and recovers to a hollow structure by its own elasticity. When the covering layer on the device being washed is washed by the flowing water, it will be subjected to the washing action of the flowing water, thereby triggering a washing warning event on the connecting line.

8. The water flow scour monitoring device according to claim 6, characterized in that, A connector clip is provided on the first exposed section of the connector near the trigger port, where the ground protection pipe is not fitted. The outer diameter of the connector clip is larger than the inner diameter of the ground protection pipe, and the distance between the connector clip and the ground protection pipe should be greater than the pulling displacement distance caused by the connector triggering an erosion warning event; and / or, The upper end of the protective sleeve is provided with an end-sealing plate, and a steering ring is provided at the outlet position of the end-sealing plate. A protrusion is provided on the top of the end-sealing plate to connect with the near-ground protective pipe; and / or, Multiple fasteners are provided on the outer side of the protective sleeve, which fix the protective sleeve to the surface of the soil, revetment structure, or bridge foundation; and / or, A sealing tube is provided at the lower inner end of the protective sleeve; there is a gap between the sealing tube and the outer protective sleeve; the sealing tube is an inverted sealing tube, and a sealing tube check valve is also provided inside the protective sleeve; the end of the sealing tube is provided with a sealing tube anti-slip inner buckle, and a sealing tube anti-slip outer buckle is provided near the bottom of the protective sleeve to cooperate with the anti-slip inner buckle.

9. The water flow scour monitoring device according to claim 7, characterized in that, The device being scourted has a spherical or ellipsoidal hollow structure; and / or, The elastic material used to manufacture the device being scoured is polyether-type TPU material; And / or, The device being flushed is internally equipped with a steel spring. And / or, The monitoring component includes: M scoured devices, where M ≥ 2; And / or, The connecting wire is a braided rope with ultra-high molecular weight polyethylene fiber as the core layer and polyester fiber as the sheath; and / or, The near-ground protective pipe is a PVC flexible hose; and / or, The protective sleeve is a rigid PVC pipe or a steel pipe; and / or, Both the near-ground protective pipe and the protective sleeve are buried in the soil. The near-ground protective pipe is buried and fixed close to the ground, and the protective sleeve is buried and fixed obliquely in the direction of water flow.

10. A water flow scour monitoring system, characterized in that, include: The water flow scour monitoring device according to claim 2; The monitoring center is communicatively connected to the water flow scour monitoring component; The verification equipment unit is used to acquire on-site image information; When the monitoring center receives scour risk information, it triggers the verification equipment unit to collect on-site image information and combines the on-site image information with the spatial distribution information of the triggered monitoring points to verify and determine the scour risk level. When the verification result is a false alarm, the monitoring center sends a command to the water flow scour monitoring component to restore the low-frequency transmission mode; Once the verification result is true and the risk handling is completed, the monitoring center sends an instruction to the water flow scour monitoring component to restore the low-frequency transmission mode. The verification equipment unit is in a hibernation or low-power standby state under normal conditions, and it enters the working state to collect on-site image information when it is triggered by the monitoring center.

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