Intelligent identification hydraulic lifting steel dam

Abstract

The application discloses an intelligent identification hydraulic lifting steel dam and belongs to the technical field of water conservancy projects, and solves the problems that the existing hydraulic steel dam cannot adapt to outdoor harsh environments, identification is disconnected from hydraulic control, is easy to cause equipment damage, and lacks hierarchical permission management. The application comprises a comprehensive information processing module, a multi-modal acquisition module, a hierarchical permission setting module, a preset database, a hydraulic control module, a variable frequency hydraulic pump station, a multi-stage hydraulic oil cylinder, a multi-parameter state detection module and an information feedback module. The multi-modal acquisition module integrates long-distance multispectral camera shooting, ship AIS identification and long-distance biological identification units and is suitable for strong interference environments in water conservancy scenes. The comprehensive information processing module is internally provided with an identification-hydraulic dynamic matching algorithm, which fuses an identity recognition result and a real-time working condition of the steel dam to generate an optimal opening and closing curve and forms closed-loop control. The application has high automation, can be dispatched in hierarchical permissions, effectively avoids water hammer and misoperation, and significantly improves the operation safety and management efficiency of the hydraulic steel dam.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to an intelligent identification hydraulic lifting steel dam suitable for harsh outdoor environments. Background Technology

[0002] Hydraulic lifting steel dams are widely used in agricultural irrigation, river landscaping, flood control and drainage, and small ship locks, offering advantages such as simple structure, short construction period, and large water-retaining height. Existing control methods for hydraulic steel dams are mainly divided into two categories: First, manual remote control relies on 24-hour on-duty personnel, resulting in slow response times and a high risk of safety accidents due to human error. Secondly, the simple automatic water level control can only open and close the gates according to the preset water level threshold, and cannot identify the identity of specific personnel or vessels, nor can it realize hierarchical access management and intelligent passage scheduling.

[0003] Prior art document 1 (CN106327625A) discloses an intelligent identification access control system that uses multimodal biometrics to achieve automatic access control. However, this system is only suitable for indoor close-range, low-interference environments and cannot adapt to the common outdoor environments of water conservancy projects, such as water mist, strong light, nighttime, and obstruction. Moreover, its controlled object is a light-load electromagnetic door with fast response speed and low inertia. If this identification technology is directly transferred to a hydraulic steel dam, the heavy load and high inertia of the hydraulic system will cause the gate to open and close too quickly, resulting in strong water hammer and damaging the dam structure and hydraulic equipment.

[0004] Prior art document 2 (CN107313417A) discloses an automatic lock control system that uses sensors to monitor the status of vessels and locks to achieve automatic opening and closing. However, this system requires vessels to actively send navigation requests and cannot identify small vessels without AIS equipment. Furthermore, it lacks personnel operation permission management, posing a safety hazard of unauthorized personnel misoperation. In addition, its control logic only adjusts the lock opening based on the vessel's movement status without dynamically matching it with the real-time operating conditions of the hydraulic system (such as pressure and oil temperature), which can easily lead to hydraulic system overload and shorten the service life of the equipment.

[0005] In summary, existing technologies have failed to solve core issues such as automatic identification, dynamic matching of identification and hydraulic control, and hierarchical safety management of hydraulic steel dams in harsh outdoor environments. They suffer from low levels of intelligence, poor safety, and easy equipment damage. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent identification hydraulic lifting steel dam. By organically combining multimodal anti-interference acquisition, hierarchical permission management, identification-hydraulic dynamic matching control and abnormal working condition linkage protection, the invention solves the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A smart identification hydraulic lifting steel dam includes: The integrated information processing module (1) is the information processing and control center. It has a built-in identification-hydraulic dynamic matching algorithm to integrate multimodal identification data and real-time working condition data of the steel dam to generate the optimal gate opening and closing control command and execute abnormal working condition linkage protection logic. The multimodal acquisition module (2) is located at a preset position 50-100 meters upstream and downstream of the steel dam body and is electrically connected to the integrated information processing module (1) to synchronously acquire AIS signals of passing ships, multispectral video images and long-distance biometric information of on-site personnel. The hierarchical permission setting module (3) is electrically connected to the preset database (4) and is used to input and manage the biometric information of personnel, the identity information of vessels and the corresponding gate operation permissions and passage priorities of different permission levels. The preset database (4) is electrically connected to the integrated information processing module (1) to store permission information, steel dam working condition safety threshold and gate opening and closing dynamic control parameters; The hydraulic control module (5) is located in the explosion-proof electrical control box and is electrically connected to the integrated information processing module (1). It is used to steplessly adjust the output flow and pressure of the power mechanism (6) according to the optimal opening and closing control command. The power mechanism (6) is a variable frequency hydraulic pump station, which is electrically connected to the hydraulic control module (5); The actuator (7) is a multi-stage synchronous hydraulic cylinder, which is connected to the power mechanism (6) through a high-pressure oil circuit and is hinged to the lifting gate of the steel dam. It is driven by the power mechanism (6) to perform the smooth lifting and lowering operation of the gate. The status detection module (8) includes a stroke sensor, a gate opening sensor, a hydraulic pressure sensor, an upstream and downstream water level sensor, an oil temperature sensor and a gate jamming detector, which are respectively installed on the hydraulic cylinder, the variable frequency hydraulic pump station and the steel dam body, and are used to collect the full working condition data of the steel dam in real time. The information feedback module (9) is electrically connected to the status detection module (8) and the integrated information processing module (1) to feed back real-time operating data to the integrated information processing module (1) at high speed, so as to dynamically correct the gate opening and closing control command.

[0008] Furthermore, the multimodal acquisition module (2) includes a long-range multispectral camera with a wavelength range of 400-900nm, an AIS signal receiver, a long-range iris recognition device with a recognition distance of 5-12 meters, and a directional voiceprint collector; the multispectral camera has built-in strong light suppression and water mist penetration algorithms to clearly acquire target images in backlight, rainstorm, and nighttime environments.

[0009] Furthermore, the integrated information processing module (1) incorporates a recognition-hydraulic dynamic matching algorithm that performs the following steps: S1. Receive multi-source identification data from the multimodal acquisition module (2), compare features with the preset database (4), and confirm the target's identity, permission level, and access priority; S2. Obtain real-time operating data of the steel dam through the information feedback module (9), including the current upstream and downstream water level difference, gate opening, hydraulic system working pressure and hydraulic oil temperature; S3. Based on the target's speed, distance from the gate, and passage priority, combined with real-time operating data, the optimal gate opening time, segmented opening and closing speed curve, and maximum safe opening degree are generated through fluid dynamics simulation calculations. S4. Send the segmented control command to the hydraulic control module (5) and receive the working condition data at a frequency of 10Hz through the information feedback module (9) to dynamically adjust the motor speed and proportional valve opening of the variable frequency hydraulic pump station. S5. When the status detection module (8) detects that the gate is blocked, the hydraulic leakage is caused, or the water level changes suddenly and exceeds the threshold, it immediately terminates the current operation, triggers an audible and visual alarm, and locks all non-administrator level operation permissions.

[0010] Furthermore, the hierarchical permission setting module (3) divides the permissions into three levels: the administrator level has all operation permissions and parameter modification permissions, the operator level has daily manual / automatic gate operation permissions, and the vessel passage level only has automatic passage permissions for the corresponding vessel; when multiple targets request passage at the same time, the integrated information processing module (1) schedules the gate opening and closing according to the preset priority.

[0011] Furthermore, the hydraulic control module (5) includes a fuzzy PID controller and a vector frequency converter, which are used to precisely adjust the output flow and pressure of the variable frequency hydraulic pump station according to the segmented control instructions, with a control accuracy of ±2%.

[0012] Furthermore, the gate jamming detector determines the jamming state by collecting the working pressure change rate of the hydraulic cylinder. When the pressure change rate exceeds 0.5MPa / s and the duration exceeds 0.3s, it is determined that the gate is jammed.

[0013] Furthermore, it also includes a 4G / 5G remote monitoring module, which is encrypted and connected to the integrated information processing module (1) for remotely viewing the operating status of the steel dam, receiving alarm information, and emergency manual intervention.

[0014] Furthermore, the preset database (4) also stores historical operating data, and the integrated information processing module (1) can optimize the gate opening and closing control parameters based on machine learning algorithms to gradually improve control efficiency and stability.

[0015] Compared with the prior art, the present invention has the following outstanding substantive features and significant progress: 1. Strong environmental adaptability: Adopting multimodal anti-interference acquisition technology, it can work stably in harsh environments such as water mist, strong light, and night, and realize long-distance automatic identification of personnel and ships without the need for active response.

[0016] 2. High control precision: The pioneering identification-hydraulic dynamic matching algorithm integrates the identification results with the real-time working conditions of the steel dam to generate the optimal opening and closing curve, realizing stepless adjustment of the hydraulic system, effectively avoiding water hammer and equipment overload, and extending the service life of the equipment by more than 30%.

[0017] 3. High security: It has a three-level hierarchical access control system to prevent unauthorized personnel from operating it; it has an abnormal working condition linkage protection function, which can respond to abnormalities and terminate operations within 0.5 seconds, greatly reducing the risk of safety accidents.

[0018] 4. High management efficiency: It achieves fully automatic access control, eliminating the need for manual operation and reducing personnel costs by more than 70%; it supports remote monitoring and emergency intervention, improving the overall management level. Attached Figure Description

[0019] Figure 1 is a system structure block diagram of an intelligent identification hydraulic lifting steel dam according to the present invention; Figure 2 is a flowchart of the recognition-hydraulic dynamic matching algorithm.

[0020] In the diagram: 1 - Integrated information processing module, 2 - Multimodal acquisition module, 3 - Hierarchical permission setting module, 4 - Preset database, 5 - Hydraulic control module, 6 - Power mechanism, 7 - Actuator, 8 - Status detection module, 9 - Information feedback module. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] The present invention proposes an intelligent identification hydraulic lifting steel dam, comprising a comprehensive information processing module (1), a multimodal acquisition module (2), a hierarchical permission setting module (3), a preset database (4), a hydraulic control module (5), a power mechanism (6), an actuator (7), a status detection module (8), and an information feedback module (9).

[0023] The multimodal acquisition module (2) is located on the steel dam body and at preset positions 50-100 meters upstream and downstream, integrating a long-distance multispectral camera, an AIS signal receiver, a long-distance iris recognition device, and a directional voiceprint collector.

[0024] Among them, the multispectral camera has built-in strong light suppression and water mist penetration algorithms, which can clearly collect target images in harsh environments such as backlight, rainstorm, and night; the AIS signal receiver is used to collect the automatic identification system signal of large ships; the long-range iris recognition device can realize personnel identification within a range of 5-12 meters without close contact with personnel; the multimodal acquisition module (2) can simultaneously collect multi-source information of ships and personnel to realize contactless and automatic identification without the need for the target to actively respond.

[0025] The hierarchical permission setting module (3) can input and manage the biometric information of personnel and the identity information of ships with different permission levels. The preset database (4) stores the corresponding operation permissions, passage priorities and steel dam working condition safety thresholds. The comprehensive information processing module (1) determines whether operation or passage is allowed based on the permission level of the target, and schedules the passage order of multiple targets according to the preset priority to avoid conflicts.

[0026] The integrated information processing module (1) is the core of the system and has a built-in identification-hydraulic dynamic matching algorithm. This algorithm integrates the identity recognition result with the real-time working condition data of the steel dam (upstream and downstream water level difference, gate opening, hydraulic pressure, oil temperature, etc.) and generates the optimal segmented opening and closing speed curve of the gate through fluid dynamics simulation calculation, so as to avoid water hammer caused by opening and closing too fast or affecting the passage efficiency by opening and closing too slow. The hydraulic control module (5) adopts a fuzzy PID controller and a vector frequency converter driver, which can steplessly adjust the output flow and pressure of the frequency converter hydraulic pump station as the power mechanism (6), so that the multi-stage synchronous hydraulic cylinder as the actuator (7) can open and close smoothly according to the optimal curve.

[0027] The status detection module (8) collects real-time data on the entire working condition of the steel dam and feeds it back to the integrated information processing module (1) at a high speed of 10Hz through the information feedback module (9), forming a closed-loop control of "identification-decision-execution-feedback-re-decision", dynamically correcting control commands and improving control accuracy and stability. When abnormal working conditions such as gate jamming, hydraulic leakage or sudden water level change are detected, the integrated information processing module (1) immediately terminates the current operation, triggers an audible and visual alarm, and locks all non-administrator level operation permissions to prevent the accident from escalating.

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] As shown in Figures 1-2, the present invention discloses an intelligent identification hydraulic lifting steel dam, comprising a comprehensive information processing module 1, a multimodal acquisition module 2, a hierarchical permission setting module 3, a preset database 4, a hydraulic control module 5, a power mechanism 6, an actuator 7, a status detection module 8, and an information feedback module 9.

[0030] The integrated information processing module 1 adopts an industrial-grade embedded processor, with a built-in Linux operating system and a recognition-hydraulic dynamic matching algorithm, which has high-speed data processing capabilities and stable operating performance.

[0031] The multimodal acquisition module 2 includes 3 long-range multispectral cameras (located upstream, downstream, and on top of the dam), 1 AIS signal receiver, 2 long-range iris recognition devices (located on the operating platforms on both sides of the dam), and 2 directional voiceprint collectors. The multispectral cameras have a resolution of 1920×1080 and a frame rate of 30fps, and have built-in algorithms for strong light suppression and water mist penetration. The AIS signal receiver has a receiving distance of 5 nautical miles. The long-range iris recognition devices have a recognition distance of 5-12 meters and a recognition accuracy of ≥99.5%.

[0032] The hierarchical permission setting module 3 adopts a touch screen human-computer interaction interface. Administrators can use this module to input personnel's iris and voiceprint information, as well as the ship's AIS number and image features, and assign corresponding permission levels and access priorities. The preset database 4 adopts an industrial-grade solid-state drive with a storage capacity of ≥1TB, which can store more than 100,000 permission information and historical operation data.

[0033] The hydraulic control module 5 includes a fuzzy PID controller and a vector frequency converter, achieving a control accuracy of ±2%. The power mechanism 6 is a variable frequency hydraulic pump station, with a rated power configured according to the span of the steel dam and the water-retaining height; in this embodiment, it is 37kW with a rated pressure of 16MPa. The actuator 7 consists of four multi-stage synchronous hydraulic cylinders, evenly distributed on the back of the steel dam gate to ensure smooth gate lifting and lowering.

[0034] The status detection module 8 includes 4 stroke sensors (each installed on 4 hydraulic cylinders), 1 gate opening sensor, 2 hydraulic pressure sensors (installed on the inlet and return oil pipelines of the hydraulic pump station), 2 water level sensors (installed on the upstream and downstream of the steel dam), 1 oil temperature sensor, and 1 gate jamming detector; the information feedback module 9 adopts industrial Ethernet communication with a data transmission rate of 100Mbps and a transmission delay of ≤10ms.

[0035] The specific working process of this invention is as follows: When a vessel approaches the steel dam or personnel arrive at the operating platform, the multimodal acquisition module 2 simultaneously acquires the target's multispectral image, AIS signal, or iris and voiceprint information, and sends it to the integrated information processing module 1; The integrated information processing module 1 compares the collected feature information with the data in the preset database 4 to confirm the target's identity and permission level. If the permission verification fails, the operation or passage is denied, and an alert is triggered; if the verification is successful, the process proceeds to the next step. The integrated information processing module 1 obtains real-time operating data of the steel dam through the information feedback module 9, including the water level difference between upstream and downstream, gate opening, hydraulic system pressure and oil temperature; The integrated information processing module 1 generates the optimal segmented opening and closing speed curve of the gate based on the target's movement speed, distance from the gate, and passage priority, combined with real-time operating data, through fluid dynamics simulation calculations. For example, when the upstream and downstream water level difference is 2m, the gate opening speed is divided into three segments: 0.02m / s for an opening of 0-0.5m, 0.05m / s for an opening of 0.5-1.5m, and 0.02m / s for an opening of 1.5-2m, to avoid water hammer. The integrated information processing module 1 sends the segmented control command to the hydraulic control module 5. The hydraulic control module 5 adjusts the motor speed and proportional valve opening of the variable frequency hydraulic pump station so that the hydraulic cylinder drives the gate to rise and fall according to the optimal curve. The status detection module 8 collects the working condition data of the steel dam in real time and feeds it back to the integrated information processing module 1 at a frequency of 10Hz through the information feedback module 9. The integrated information processing module 1 dynamically adjusts the control commands according to the feedback data to ensure the smooth operation of the gate. Once the gate reaches the preset opening degree, it remains open until the target has completely passed through; after the target has passed through, the integrated information processing module 1 generates a gate closing control command to control the gate to close smoothly. When the status detection module 8 detects that the gate is blocked, the hydraulic leakage is occurring, or the water level suddenly changes and exceeds the threshold, the integrated information processing module 1 immediately cuts off the power supply to the hydraulic pump station, triggers an audible and visual alarm, and sends an alarm message to the management personnel through the remote monitoring module. At the same time, it locks all non-administrator level operation permissions.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, those skilled in the art, under the guidance of the present invention, who design similar structures and embodiments without departing from the spirit of the invention, should all fall within the protection scope of the present invention.

Claims

1. A smart identification hydraulic lifting steel dam, characterized in that, include: The integrated information processing module (1) is the information processing and control center. It has a built-in identification-hydraulic dynamic matching algorithm to integrate multimodal identification data and real-time working condition data of the steel dam to generate the optimal gate opening and closing control command and execute abnormal working condition linkage protection logic. The multimodal acquisition module (2) is located at a preset position 50-100 meters upstream and downstream of the steel dam body and is electrically connected to the integrated information processing module (1) to synchronously acquire AIS signals of passing ships, multispectral video images and long-distance biometric information of on-site personnel. The hierarchical permission setting module (3) is electrically connected to the preset database (4) and is used to input and manage the biometric information of personnel, the identity information of vessels and the corresponding gate operation permissions and passage priorities of different permission levels. The preset database (4) is electrically connected to the integrated information processing module (1) to store permission information, steel dam working condition safety threshold and gate opening and closing dynamic control parameters; The hydraulic control module (5) is located in the explosion-proof electrical control box and is electrically connected to the integrated information processing module (1). It is used to steplessly adjust the output flow and pressure of the power mechanism (6) according to the optimal opening and closing control command. The power mechanism (6) is a variable frequency hydraulic pump station, which is electrically connected to the hydraulic control module (5); The actuator (7) is a multi-stage synchronous hydraulic cylinder, which is connected to the power mechanism (6) through a high-pressure oil circuit and is hinged to the lifting gate of the steel dam. It is driven by the power mechanism (6) to perform the smooth lifting and lowering operation of the gate. The status detection module (8) includes a stroke sensor, a gate opening sensor, a hydraulic pressure sensor, an upstream and downstream water level sensor, an oil temperature sensor and a gate jamming detector, which are respectively installed on the hydraulic cylinder, the variable frequency hydraulic pump station and the steel dam body, and are used to collect the full working condition data of the steel dam in real time. The information feedback module (9) is electrically connected to the status detection module (8) and the integrated information processing module (1) to feed back real-time operating data to the integrated information processing module (1) at high speed, so as to dynamically correct the gate opening and closing control command.

2. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The multimodal acquisition module (2) includes a long-range multispectral camera with a wavelength range of 400-900nm, an AIS signal receiver, a long-range iris recognition device with a recognition distance of 5-12 meters, and a directional voiceprint collector; the multispectral camera has built-in strong light suppression and water mist penetration algorithms to clearly acquire target images in backlight, rainstorm, and nighttime environments.

3. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The integrated information processing module (1) has a built-in recognition-hydraulic dynamic matching algorithm that performs the following steps: S1. Receive multi-source identification data from the multimodal acquisition module (2), compare features with the preset database (4), and confirm the target's identity, permission level, and access priority; S2. Obtain real-time operating data of the steel dam through the information feedback module (9), including the current upstream and downstream water level difference, gate opening, hydraulic system working pressure and hydraulic oil temperature; S3. Based on the target's speed, distance from the gate, and passage priority, combined with real-time operating data, the optimal gate opening time, segmented opening and closing speed curve, and maximum safe opening degree are generated through fluid dynamics simulation calculations. S4. Send the segmented control command to the hydraulic control module (5) and receive the working condition data at a frequency of 10Hz through the information feedback module (9) to dynamically adjust the motor speed and proportional valve opening of the variable frequency hydraulic pump station. S5. When the status detection module (8) detects that the gate is blocked, the hydraulic leakage is caused, or the water level changes suddenly and exceeds the threshold, it immediately terminates the current operation, triggers an audible and visual alarm, and locks all non-administrator level operation permissions.

4. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The hierarchical permission setting module (3) divides permissions into three levels: the administrator level has all operation permissions and parameter modification permissions, the operator level has daily manual / automatic gate operation permissions, and the vessel passage level only has automatic passage permissions for the corresponding vessel; when multiple targets request passage at the same time, the integrated information processing module (1) schedules the gate opening and closing according to the preset priority.

5. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The hydraulic control module (5) includes a fuzzy PID controller and a vector frequency converter, which are used to precisely adjust the output flow and pressure of the variable frequency hydraulic pump station according to the segmented control instructions, with a control accuracy of ±2%.

6. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The gate jamming detector determines the jamming status by collecting the working pressure change rate of the hydraulic cylinder. When the pressure change rate exceeds 0.5MPa / s and the duration exceeds 0.3s, it is determined that the gate is jammed.

7. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: It also includes a 4G / 5G remote monitoring module, which is encrypted and connected to the integrated information processing module (1) for remotely viewing the operating status of the steel dam, receiving alarm information and emergency manual intervention.

8. The intelligent identification hydraulic lifting steel dam according to claim 1, characterized in that: The preset database (4) also stores historical operating data. The integrated information processing module (1) can optimize the gate opening and closing control parameters based on machine learning algorithms, thereby gradually improving control efficiency and stability.

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