Ship lock miter gate automatic control method based on water flow pulsating pressure

Abstract

The invention relates to the technical field of ship lock automatic control, in particular to a ship lock miter gate automatic control method based on water flow pulsating pressure, and the method comprises the steps: judging the current working condition of a ship lock miter gate, and obtaining the initial control strategy of the current working condition of the ship lock miter gate; processing to obtain an abnormal state evaluation value of the ship lock miter gate control equipment; comprehensive performance evaluation indexes of the ship lock miter gate are obtained through comprehensive analysis; a ship lock bearing pressure evaluation threshold value is obtained through matching according to the ship lock miter gate comprehensive performance evaluation indexes, and feedback early warning is conducted on the ship lock miter gate comprehensive performance; according to the ship lock miter gate automatic control method based on the water flow pulsating pressure, a ship lock bearing pressure evaluation value is obtained through analysis, the ship lock bearing pressure evaluation value is compared with a ship lock bearing pressure evaluation threshold value, and a current working condition initial control strategy is adjusted according to a comparison result. Therefore, the operation quality and safety of the ship lock can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship lock automatic control, in particular to an automatic control method for a ship lock miter gate based on water flow pulsation pressure. Background Art

[0002] As an important water transport facility, the operation efficiency and safety of the ship lock are crucial to the development of the shipping industry. During the operation of the ship lock, the miter gate, as a key component, needs to be opened and closed frequently to adjust the water level in the lock chamber so that ships can pass smoothly. However, due to the existence of pulsating pressure of water flow, the operation stability and safety of the miter gate face severe challenges.

[0003] For example, the invention patent with announcement number: CN117071521B is an intelligent loading test system and method for the structure of a ship lock miter gate, including a gate, a self-reaction force frame for fixing the gate, a rotating actuator acting on the gate body to make it rotate around the rotation axis at a set angular velocity, a loading actuator can realize the static and dynamic compound loading on the gate, a dual-channel control system can realize the electro-hydraulic servo closed-loop control and coordinated loading of the two channels of rotation and loading, and a dynamic signal test and analysis system with multi-channel synchronous sampling can realize the distributed acquisition and monitoring of the test system. By simulating the entire operation process of the ship lock miter gate structure, the dynamic response of the ship lock miter gate and the supporting operating parts under the impact force of the ship, hydrostatic pressure, water flow pulsation pressure, and frequent opening and closing can be studied. By collecting the dynamic response signal of the gate model load response sensitive area, the force and deformation characteristics of the gate and the supporting operating parts (top and bottom pivots) during the process of filling and draining water and opening and closing the gate are studied.

[0004] For example, the invention patent with publication number: CN118223460A is a ship lock miter gate system, including a lock chamber, a gate, a connecting pivot and a working bridge, the lock chamber includes a gate bottom plate and a gate wall, the first end of the connecting pivot is arranged on the gate wall, the second end of the connecting pivot is hinged to the gate, the working bridge is fixedly arranged on the top of the gate, the gate wall includes a concrete wall, a pillow seat and an inspection cover, the pillow seat is anchored on the inner wall surface of the concrete wall body, a working chamber with an open top surface is arranged on the top of the concrete wall body, the inspection cover is arranged on the concrete wall body for sealing the top surface opening, the first end of the connecting pivot is arranged in the working chamber, the second end of the connecting pivot extends laterally to the top of the pillow seat and is hinged to the gate, the bridge deck of the working bridge, the top surface of the concrete wall body and the top surface of the inspection cover are arranged flush.

[0005] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application discovered that the above technology has at least the following technical problems: existing automatic control systems often rely only on simple threshold trigger mechanisms, and the adjustment dimensions are relatively single, resulting in poor control effects in certain complex environments. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automatic control method for a ship lock miter gate based on water flow pulsating pressure, which can effectively solve the problems involved in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an automatic control method for a ship lock miter gate based on water flow pulsating pressure, including: obtaining real-time working data of the ship lock miter gate, judging the current working condition of the ship lock miter gate, and collecting ship lock scale data, and obtaining the initial control strategy of the current working condition of the ship lock miter gate according to the ship lock scale data and the real-time working data of the ship lock miter gate.

[0008] The status data of the lock miter gate control equipment is obtained, and the abnormal status evaluation value of the lock miter gate control equipment is obtained after processing. The data of the lock miter gate control components are collected, and the comprehensive performance evaluation index of the lock miter gate is obtained through comprehensive analysis.

[0009] The pressure assessment threshold of the lock is obtained by matching the comprehensive performance evaluation index of the lock miter gate, and feedback and early warning of the comprehensive performance of the lock miter gate are provided.

[0010] The working environment data of the lock miter gate is obtained for analysis to obtain the lock pressure assessment value, the lock pressure assessment value is compared with the lock pressure assessment threshold, the comparison result is obtained, and the initial control strategy of the current working condition is adjusted according to the comparison result.

[0011] As a further method, the current working condition of the ship lock miter gate is determined by the following specific process: the real-time working data of the ship lock miter gate includes the pressure inside and outside the gate and the displacement of the passing ship.

[0012] The pressure difference is calculated based on the pressure inside and outside the gate, and the pressure difference range is extracted from the automatic control system.

[0013] If the pressure difference between the inside and outside of the gate is within the pressure difference range, it indicates that the miter gate is in the open state.

[0014] If the pressure difference between the inside and outside of the gate is not within the pressure difference range, it indicates that the miter gate is in a closed state.

[0015] As a further method, the initial control strategy for the current working condition of the ship lock miter gate is obtained, and the specific process is: according to the displacement of the passing ship, the expected opening angle of the ship lock miter gate is matched.

[0016] Obtain the ship lock scale data, wherein the ship lock scale data includes: the effective size of the lock chamber, the number and size of the discharge orifices.

[0017] According to the expected opening angle of the miter gate and the scale data of the lock, and the maximum effective scale of the lock chamber, the maximum number and maximum size of the discharge holes extracted from the automatic control system, a comprehensive analysis is conducted to obtain the expected opening time of the miter gate.

[0018] The estimated opening angle of the ship lock miter gate and the estimated opening time of the ship lock miter gate are marked as the initial control strategy for the current working condition.

[0019] As a further method, the abnormal state evaluation value of the lock miter gate control equipment is obtained through processing, and the specific process is: the state data of the lock miter gate control equipment includes the voltage, current, power, temperature and vibration intensity of the control equipment at each time point within a preset monitoring period.

[0020] The control device specifically refers to an electrical device.

[0021] The rated voltage, rated current, rated power, rated temperature, rated vibration intensity, allowable deviation voltage, allowable deviation current, allowable deviation power, allowable deviation temperature and allowable deviation vibration intensity are extracted from the automatic control system database, and based on the status data of the ship lock miter gate control equipment, a comprehensive analysis is performed to obtain an abnormal state evaluation value of the ship lock miter gate control equipment. The abnormal state evaluation value of the ship lock miter gate control equipment is used to quantitatively evaluate the abnormal degree of the status of the ship lock miter gate control equipment, and provide a basis for evaluating the comprehensive performance of the miter gate.

[0022] As a further method, the data of the control components of the miter gate of the ship lock include the prestress of the top drive A rod, the prestress of the top drive B rod, the prestress of the opening and closing rod, and the prestress of the back-pull rod, and the stress of the top drive A rod, the stress of the top drive B rod, the stress of the opening and closing rod, and the stress of the back-pull rod at each time point in the preset monitoring period.

[0023] As a further method, the comprehensive analysis obtains the comprehensive performance evaluation index of the lock miter gate. The specific analysis process is: extracting the allowable deviation stress of the top drive rod, the allowable deviation stress of the opening and closing rod and the allowable deviation stress of the back pull rod from the automatic control system database, and based on the control component data of the lock miter gate, a comprehensive analysis is performed to obtain the control component safety evaluation index. The control component safety evaluation index is used to quantitatively evaluate the safety degree of the miter gate control component and provide a basis for evaluating the comprehensive performance of the miter gate.

[0024] According to the abnormal state evaluation value of the ship lock miter gate control equipment and the control component safety evaluation index, a comprehensive analysis is conducted to obtain the comprehensive performance evaluation index of the ship lock miter gate. The comprehensive performance evaluation index of the ship lock miter gate is used to quantitatively evaluate the comprehensive performance of the ship lock miter gate, and provide a basis for feedback and early warning of the comprehensive performance of the ship lock miter gate.

[0025] As a further method, the comprehensive performance of the ship lock miter gate is fed back and warned, and the specific feedback process is: comparing the comprehensive performance evaluation index of the ship lock miter gate with the comprehensive performance evaluation index threshold of the ship lock miter gate preset in the automatic control system database; if the comprehensive performance evaluation index of the ship lock miter gate is higher than or equal to the comprehensive performance evaluation index threshold of the ship lock miter gate, indicating that the performance evaluation of the ship lock miter gate is qualified, then the result is displayed and output; if the comprehensive performance evaluation index of the ship lock miter gate is lower than the comprehensive performance evaluation index threshold of the ship lock miter gate, indicating that the performance evaluation of the ship lock miter gate is unqualified, then a risk warning is issued for the ship lock miter gate.

[0026] As a further method, the working environment data of the miter gate of the ship lock is obtained and analyzed to obtain an assessment value of the pressure that the ship lock can withstand. The specific process is: the working environment data of the miter gate of the ship lock includes the water flow velocity and water flow pulsation pressure at each environmental monitoring point in a preset monitoring period and the upstream and downstream water levels in the preset monitoring period.

[0027] The allowable deviation water level, water flow velocity critical value and water flow pulsation pressure critical value are extracted from the automatic control system database, and based on the working environment data of the ship lock miter gate, a comprehensive analysis is performed to obtain the ship lock pressure assessment value. The ship lock pressure assessment value is used to quantitatively assess the degree to which the ship lock withstands external pressure, and provides a basis for adjusting the initial control strategy of the current working condition of the ship lock miter gate.

[0028] As a further method, the lock pressure assessment value is compared with the lock pressure assessment threshold to obtain a comparison result. The specific comparison process is: compare the lock pressure assessment value with the lock pressure assessment threshold. If the lock pressure assessment value is lower than or equal to the lock pressure assessment threshold, it indicates that the lock is in normal operation under the current working condition and there is no need to adjust the initial control strategy for the current working condition. If the lock pressure assessment value is higher than the lock pressure assessment threshold, it indicates that the lock is in abnormal operation under the current working condition and it is necessary to adjust the initial control strategy for the current working condition.

[0029] As a further method, the initial control strategy of the current working condition is adjusted according to the comparison result. The specific adjustment process is: if the lock pressure assessment value is higher than the lock pressure assessment threshold, the lock pressure assessment value and the lock pressure assessment threshold are differenced, and according to the difference between the lock pressure assessment value and the lock pressure assessment threshold, the adjustment value of the expected opening time of the lock miter door in the current working condition is matched.

[0030] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects: (1) The present invention provides an automatic control method for the miter gate of a ship lock based on the pulsating pressure of water flow, compares the predicted pressure of the miter gate of the ship lock with the actual pressure, and adjusts the initial control strategy of the current working condition according to the comparison result, thereby ensuring the safe passage of ships, optimizing the operation efficiency of the ship lock, and improving the level of intelligent management, thereby helping to improve the operation quality and safety of the ship lock and meet the passage needs of more ships.

[0031] (2) By comprehensively analyzing parameters such as voltage, current, power, temperature and vibration intensity, the present invention can provide a more comprehensive understanding of the operating status of the equipment, improve the accuracy of fault diagnosis, help timely discover abnormal conditions of the equipment, take preventive measures, and avoid the occurrence of equipment failures, thereby improving the energy efficiency and operating efficiency of the equipment.

[0032] (3) By comprehensively comparing the difference between the prestress and the actual stress of each prestressed rod, the present invention can more comprehensively understand the stress state of the ship lock miter gate in actual operation, help further optimize the prestress design, reduce operational failures and safety hazards caused by structural deformation, vibration and other problems, and improve the overall stability of the structure, thereby ensuring that the ship lock miter gate maintains a stable and smooth operation state during the opening and closing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0034] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0035] Figure 2 It is a schematic diagram of the functional relationship between the abnormal state evaluation value of the ship lock miter gate control equipment and the comprehensive performance evaluation index of the ship lock miter gate involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Reference Figure 1As shown, the present invention provides an automatic control method for a ship lock miter gate based on water flow pulsating pressure, including: obtaining real-time working data of the ship lock miter gate, judging the current working condition of the ship lock miter gate, and collecting ship lock scale data, and obtaining an initial control strategy for the current working condition of the ship lock miter gate according to the ship lock scale data and the real-time working data of the ship lock miter gate.

[0038] Specifically, the current working condition of the ship lock miter gate is judged, and the specific process is: the real-time working data of the ship lock miter gate includes the pressure inside and outside the gate and the displacement of the passing ship.

[0039] The pressure difference is calculated based on the pressure inside and outside the gate, and the pressure difference range is extracted from the automatic control system.

[0040] If the pressure difference between the inside and outside of the gate is within the pressure difference range, it indicates that the miter gate is in the open state.

[0041] If the pressure difference between the inside and outside of the gate is not within the pressure difference range, it indicates that the miter gate is in a closed state.

[0042] It should be explained that the determination of the current working condition of the ship lock miter gate in the present embodiment is based on the state in which the ship lock miter gate can operate, and does not consider the situation in which the ship lock miter gate is damaged.

[0043] Furthermore, the initial control strategy of the current working condition of the ship lock miter gate is obtained. The specific process is: according to the displacement of the passing ship, the expected opening angle of the ship lock miter gate is matched.

[0044] It needs to be explained that the specific matching process is: extracting a mapping set of the ship displacement and the expected opening angle of the lock miter gate from the automatic control system, and obtaining the expected opening angle of the lock miter gate according to the mapping set.

[0045] It needs to be explained that the opening angle of the miter gate of the ship lock refers to the angle at which the two door leaves rotate relative to the vertical position (i.e. the fully closed state) during the opening process of the miter gate.

[0046] It needs to be explained that the opening angle of the lock's miter gate needs to be large enough to ensure that ships of different sizes can pass smoothly. If the opening angle is too small, it may restrict the passage of ships, making it impossible for ships to enter or exit the lock. The opening angle of the lock's miter gate will also affect the passage efficiency of ships. If the opening angle is too large, although larger ships can be accommodated, the opening and closing time and energy consumption of the lock may increase. On the contrary, if the opening angle is too small, although the opening and closing time and energy consumption may be reduced, it may limit the passage speed of ships and reduce passage efficiency. Therefore, it is necessary to reasonably balance the relationship between the opening angle and passage efficiency while meeting the passage needs of ships.

[0047] Obtain the ship lock scale data, wherein the ship lock scale data includes: the effective size of the lock chamber, the number and size of the discharge orifices.

[0048] According to the estimated opening angle of the miter gate of the ship lock and the scale data of the ship lock, and the maximum effective dimension of the lock chamber, the maximum number and maximum size of the discharge holes are extracted from the automatic control system, and a comprehensive analysis is performed to obtain the estimated opening time assessment value of the miter gate of the ship lock. The estimated opening time is then obtained by matching the estimated opening time assessment value of the miter gate of the ship lock.

[0049] In a specific embodiment, the numerical expression of the estimated opening time evaluation value of the ship lock miter gate is: ; In the formula, It represents the estimated opening time of the miter gate of the ship lock. Indicates the expected opening angle of the lock miter gate. Indicates the effective size of the lock chamber, Indicates the number of drainage holes, Indicates the size of the drain hole. Indicates the maximum effective size of the lock chamber, Indicates the maximum number of drainage orifices. Indicates the maximum size of the drainage orifice. Indicates the influence factor of the expected opening time of the lock miter gate corresponding to the preset expected opening angle of the lock miter gate, It represents the influencing factor of the estimated opening time of the miter gate of the ship lock corresponding to the preset effective size of the lock chamber, Indicates the influence factor of the expected opening time of the miter gate of the ship lock corresponding to the preset number of discharge holes, It represents the influencing factor of the expected opening time of the miter gate of the ship lock corresponding to the preset discharge orifice size.

[0050] It needs to be explained that when the expected opening angle of the miter gate of the ship lock and the effective scale of the lock chamber are larger, and the number and size of the discharge holes are smaller, the corresponding estimated opening time assessment value of the miter gate of the ship lock will be larger, indicating that the expected opening time of the miter gate of the ship lock will be longer.

[0051] It needs to be explained that the larger the opening angle of the miter gate of the ship lock, the longer the opening time, because more force is required to overcome the water pressure and friction. The larger the effective size of the lock chamber, the longer the opening time is required to ensure that the water level is adjusted to the appropriate height for the safe entry and exit of ships. A large number of discharge holes and large sizes can speed up the discharge and thus shorten the opening time. At the same time, the number and size of the discharge holes are large enough to adjust the water level faster, and the miter gate may not need to be fully opened to reach the target water level. The effective size of the lock chamber determines the amount of water that needs to be adjusted. Larger lock chambers require more discharge holes and larger discharge hole sizes to effectively adjust the water level.

[0052] It should be explained that in this embodiment Indicates the influence factor of the expected opening time of the lock miter gate corresponding to the preset expected opening angle of the lock miter gate, It represents the influencing factor of the estimated opening time of the miter gate of the ship lock corresponding to the preset effective size of the lock chamber, Indicates the influence factor of the expected opening time of the miter gate of the ship lock corresponding to the preset number of discharge holes, Indicating the estimated opening time influencing factors of the ship lock miter gates corresponding to the preset discharge orifice size, respectively indicating the numerical values ​​of the influence of the estimated opening angle of the ship lock miter gates, the effective size of the lock chamber, the number of discharge orifices and the unit value of the discharge orifice size on the estimated opening time of the ship lock miter gates. When used, the estimated opening time influencing factors of the ship lock miter gates corresponding to the estimated opening angle of the ship lock miter gates, the estimated opening time influencing factors of the ship lock miter gates corresponding to the effective size of the lock chamber, the estimated opening time influencing factors of the ship lock miter gates corresponding to the estimated opening time of the ship lock miter gates, and the estimated opening time influencing factors of the ship lock miter gates corresponding to the estimated opening angle of the ship lock miter gates can be directly obtained from the automatic control system database. The corresponding relationship can be a preset mapping relationship, for example, the estimated opening angle of the ship lock miter gates, the effective size of the lock chamber, The number of discharge orifices and the size of the discharge orifices are respectively mapped with the expected opening angle of the ship lock miter gate, the effective scale of the lock chamber, the number of discharge orifices and the expected opening time influencing factors of the ship lock miter gate corresponding to the preset automatic control system database, and the real-time expected opening angle of the ship lock miter gate, the effective scale of the lock chamber, the number of discharge orifices and the size of the discharge orifice are input into the mapping set to obtain the ship lock miter gate expected opening time influencing factors corresponding to the expected opening angle of the ship lock miter gate, the ship lock miter gate expected opening time influencing factors corresponding to the effective scale of the lock chamber, the ship lock miter gate expected opening time influencing factors corresponding to the number of discharge orifices and the ship lock miter gate expected opening time influencing factors corresponding to the discharge orifice size, wherein the mapping relationship can be one-to-one or many-to-one. The above influencing factors are all extracted from the automatic control system database, and the value range is between 0 and 1.

[0053] Furthermore, a mapping set of the estimated opening time evaluation value of the lock miter gate and the estimated opening time of the lock miter gate corresponding to the evaluation value interval is extracted from the automatic control system database to obtain the real-time estimated opening time evaluation value of the lock miter gate, and the corresponding estimated opening time of the lock miter gate is obtained according to the mapping set.

[0054] The estimated opening angle of the ship lock miter gate and the estimated opening time of the ship lock miter gate are marked as the initial control strategy for the current working condition.

[0055] It should be explained that the opening time refers to the time required from the start of the miter gate to its full opening, and the effective dimensions of the lock chamber include the length, width and threshold water depth (or water depth on the threshold) of the lock chamber. These parameters determine the size of the ship that the lock can accommodate. For example, the effective dimensions of the lock chamber of a certain lock may be length × width × threshold water depth = 180m × 23m × 3.5m.

[0056] It should be explained that in the planning, construction and actual operation of the ship lock, the opening time of the miter gate is not only related to whether the ship can pass smoothly, but also directly affects the passing capacity and volume of the ship lock. By accurately controlling the opening time of the miter gate, it can ensure that the ship enters the lock chamber at the best time, thereby maximizing the passage efficiency of the ship lock. In addition, a reasonable opening time can effectively reduce the impact of the pulsating pressure of the water flow on the miter gate and the overall structure of the ship lock, extend the service life of the equipment, and improve the safety of operation. Therefore, controlling the opening time is the best choice to achieve efficient and safe operation of the ship lock.

[0057] The status data of the lock miter gate control equipment is obtained, and the abnormal status evaluation value of the lock miter gate control equipment is obtained after processing. The data of the lock miter gate control components are collected, and the comprehensive performance evaluation index of the lock miter gate is obtained through comprehensive analysis.

[0058] Specifically, the abnormal state evaluation value of the lock miter gate control equipment is obtained after processing, and the specific process is: the state data of the lock miter gate control equipment includes the voltage, current, power, temperature and vibration intensity of the control equipment at each time point within a preset monitoring period.

[0059] The control device specifically refers to an electrical device.

[0060] It should be explained that voltage and current sensors can be installed at the power input end and key circuit nodes of the ship lock miter gate control equipment to monitor the voltage and current changes of the equipment in real time. At the same time, the power data of the equipment can be obtained through power sensors or by calculating the product of voltage and current. Temperature sensors are installed at key parts of the ship lock miter gate control equipment to monitor the temperature changes of the equipment in real time. Vibration acceleration sensors are installed at vibration-sensitive parts of the ship lock miter gate control equipment to monitor the vibration intensity of the equipment in real time.

[0061] The rated voltage, rated current, rated power, rated temperature, rated vibration intensity, allowable deviation voltage, allowable deviation current, allowable deviation power, allowable deviation temperature and allowable deviation vibration intensity are extracted from the automatic control system database, and based on the status data of the ship lock miter gate control equipment, a comprehensive analysis is performed to obtain an abnormal state evaluation value of the ship lock miter gate control equipment. The abnormal state evaluation value of the ship lock miter gate control equipment is used to quantitatively evaluate the abnormal degree of the status of the ship lock miter gate control equipment, and provide a basis for evaluating the comprehensive performance of the miter gate.

[0062] In a specific embodiment, the numerical expression of the abnormal state evaluation value of the ship lock miter gate control device is: In the formula, represents the abnormal state evaluation value of the lock miter gate control equipment, t represents the number of each time point, , d represents the total number of time points, represents the voltage of the control device at the tth time point, represents the current of the control device at the tth time point, represents the power of the control device at the tth time point, Indicates the temperature of the control device at the tth time point, Indicates the vibration intensity of the control device at the tth time point, Indicates the rated voltage, Indicates the rated current, Indicates rated power, Indicates rated temperature, Indicates the rated vibration intensity, Indicates the allowable deviation voltage, Indicates the allowable deviation current, Indicates the allowable deviation power, Indicates the allowable deviation temperature, Indicates the allowable deviation vibration intensity, Indicates the abnormal influence factor of the control device state corresponding to the preset voltage, Indicates the abnormal influence factor of the control device state corresponding to the preset current, Indicates the abnormal impact factor of the control device state corresponding to the preset power, Indicates the abnormal influence factor of the control device state corresponding to the preset temperature, Indicates the abnormal influence factor of the control device state corresponding to the preset vibration intensity.

[0063] It needs to be explained that when the absolute difference between the current, voltage, power, temperature, and vibration intensity of the control equipment and the rated current, voltage, power, temperature, and vibration intensity is greater, the corresponding abnormal state assessment value of the lock miter gate control equipment will be greater, indicating that the degree of abnormality of the state of the lock miter gate control equipment is greater.

[0064] It should be explained that in this embodiment Indicates the abnormal influence factor of the control device state corresponding to the preset voltage, Indicates the abnormal influence factor of the control device state corresponding to the preset current, Indicates the abnormal impact factor of the control device state corresponding to the preset power, Indicates the abnormal influence factor of the control device state corresponding to the preset temperature, The control device state abnormality influence factor corresponding to the preset vibration intensity respectively represents the numerical value of the influence degree of the unit value of voltage, current, power, temperature and vibration intensity on the control device state abnormality. When used, the control device state abnormality influence factor corresponding to voltage, the control device state abnormality influence factor corresponding to current, the control device state abnormality influence factor corresponding to power, the control device state abnormality influence factor corresponding to temperature and the control device state abnormality influence factor corresponding to vibration intensity can be directly obtained from the automatic control system database. The corresponding relationship can be a preset mapping relationship. For example, the voltage, current, power, temperature and vibration intensity of each control device at each time point are respectively mapped with the control device state abnormality influence factors corresponding to the voltage, current, power, temperature and vibration intensity preset in the automatic control system database to form a mapping set. The real-time voltage, current, power, temperature and vibration intensity are input into the mapping set to obtain the control device state abnormality influence factor corresponding to voltage, the control device state abnormality influence factor corresponding to current, the control device state abnormality influence factor corresponding to power, the control device state abnormality influence factor corresponding to temperature and the control device state abnormality influence factor corresponding to vibration intensity. The mapping relationship can be one-to-one or many-to-one. The above influencing factors are extracted from the automatic control system database, and the value range is between 0 and 1.

[0065] It should be explained that when the voltage deviates from the rated voltage, it may cause the equipment to work abnormally or be damaged. Voltage monitoring helps to evaluate the power supply stability of the equipment and provides an important basis for equipment maintenance. When the current of the equipment increases abnormally, it may mean that there are problems such as short circuit and overload inside the equipment. By monitoring the current, these potential problems can be discovered in time to avoid equipment shutdown due to overheating, damage, etc. In addition, current monitoring can also be used to evaluate the energy efficiency of the equipment and provide data support for energy saving and consumption reduction. By monitoring the power, the energy consumption of the equipment can be understood and a basis for the energy-saving operation of the equipment can be provided. At the same time, power monitoring can also be used to evaluate the operating status of the equipment. When the power of the equipment drops abnormally, it may mean that the equipment is faulty or worn and needs to be repaired or replaced in time. By monitoring the temperature of key parts of the equipment, the problem of overheating of the equipment can be discovered in time to avoid damage to the equipment due to high temperature. In addition, temperature monitoring can also be used to evaluate the heat dissipation performance of the equipment and provide optimization suggestions for the heat dissipation design of the equipment. When the vibration of the equipment increases abnormally, it may mean that the equipment has problems such as imbalance, looseness or wear. By monitoring the vibration intensity, these potential problems can be discovered in time to avoid damage to the equipment due to excessive vibration.

[0066] It should be explained that the phase difference between voltage and current determines the power factor and affects the actual power transmission efficiency. When electromagnetic equipment such as motors are running, the instability of voltage and current may lead to an imbalance of electromagnetic force, which causes vibration. The consumption of power is usually accompanied by the generation of heat, that is, the Joule heating effect. Therefore, the higher the power, the more heat the equipment generates, and the temperature rises. The increase in temperature may cause thermal expansion of equipment components, change the relative position of components, and thus increase vibration. Temperature changes also affect the elastic modulus of the material, which in turn affects the vibration characteristics.

[0067] It should be explained that comprehensive analysis of parameters such as voltage, current, power, temperature and vibration intensity can provide a more comprehensive understanding of the equipment's operating status and improve the accuracy of fault diagnosis. By real-time monitoring of these parameters, abnormal conditions of the equipment can be discovered in a timely manner, and preventive measures can be taken to avoid equipment failures, while also avoiding downtime losses caused by equipment failures. Based on the monitoring data, the operation of the equipment can also be optimized and adjusted to improve the energy efficiency and operating efficiency of the equipment.

[0068] Furthermore, the data of the control components of the ship lock miter gate include prestress of the top drive A rod, prestress of the top drive B rod, prestress of the opening and closing rod, and prestress of the back tie rod, and the stress of the top drive A rod, the top drive B rod, the opening and closing rod, and the back tie rod at each time point in the preset monitoring period.

[0069] It needs to be explained that strain gauges can be attached to the top drive A rod, top drive B rod, opening and closing rod and back pull rod of the miter door control component, and the resistance change of the strain gauge when subjected to force can be recorded by a strain gauge or a data acquisition system, and then the stress value can be calculated. The specific calculation formula is: ,in, represents the elastic modulus of the material, represents stress, , Indicates strain, It represents the change in resistance of the strain gauge, that is, the difference between the resistance value R after force and the initial resistance value R0. R0 represents the initial resistance value of the strain gauge. Kf represents the sensitivity coefficient of the strain gauge, which is a constant that describes the relationship between the resistance change of the strain gauge and the strain.

[0070] It should be explained that actual stress refers to the real stress state generated inside the rod when it is subjected to force. It reflects the strength and stability of the rod under the action of external force. Prestressing is the compressive stress pre-applied to the structure during construction in order to improve the service performance of the structure. During the service life of the structure, the pre-compressive stress can fully or partially offset the tensile stress caused by the load and avoid structural damage.

[0071] Furthermore, a comprehensive analysis is performed to obtain comprehensive performance evaluation indicators of the ship lock miter gate. The specific analysis process is: the allowable deviation stress of the top drive rod, the allowable deviation stress of the opening and closing rod and the allowable deviation stress of the back pull rod are extracted from the automatic control system database, and based on the ship lock miter gate control component data, a comprehensive analysis is performed to obtain the control component safety assessment index. The control component safety assessment index is used to quantitatively evaluate the safety degree of the miter gate control component and provide a basis for evaluating the comprehensive performance of the miter gate.

[0072] In a specific embodiment, the numerical expression of the control component safety assessment index is: ; In the formula, represents the control component safety assessment index, represents the stress of top drive rod A at the tth time point, represents the stress of top drive rod B at the tth time point, represents the stress of the opening and closing rod at the tth time point, represents the stress of the back tie rod at the tth time point, Indicates the prestress of the top drive A rod, Indicates the prestress of the top drive B rod, Indicates the prestress of the opening and closing rod, represents the prestressing force of the back tie rod, It represents the safety influence factor of the control component corresponding to the preset top drive A rod stress, It represents the safety influence factor of the control component corresponding to the preset top drive B rod stress, Indicates the safety impact factor of the control component corresponding to the preset opening and closing rod stress, It represents the safety influencing factor of the control component corresponding to the preset back tie rod stress.

[0073] It needs to be explained that the smaller the actual stress of the top drive A rod, the actual stress of the top drive B rod, the actual stress of the opening and closing rod, and the actual stress of the back-pull rod, the greater the corresponding control component safety assessment index, indicating that the safety level of the lock miter gate control component is higher.

[0074] It should be explained that in this embodiment It represents the safety influence factor of the control component corresponding to the preset top drive A rod stress, It represents the safety influence factor of the control component corresponding to the preset top drive B rod stress, Indicates the safety impact factor of the control component corresponding to the preset opening and closing rod stress, Indicates the control component safety influence factor corresponding to the preset back-tie rod stress, and respectively indicates the influence degree of the top drive A rod stress, the top drive B rod stress, the opening and closing rod stress, and the back-tie rod stress unit change value on the control component safety. When used, the control component safety influence factor corresponding to the top drive A rod stress, the control component safety influence factor corresponding to the top drive B rod stress, the control component safety influence factor corresponding to the opening and closing rod stress, and the control component safety influence factor corresponding to the back-tie rod stress can be directly obtained from the automatic control system database. The corresponding relationship can be a preset mapping relationship, for example, the top drive A rod stress, the top drive B rod stress, The stress of the opening and closing rod and the stress of the back tie rod are respectively mapped with the control component safety influencing factors corresponding to the top drive A rod stress, the top drive B rod stress, the opening and closing rod stress, and the back tie rod stress preset in the automatic control system database to form a mapping set, and the real-time top drive A rod stress, the top drive B rod stress, the opening and closing rod stress, and the back tie rod stress are input into the mapping set to obtain the control component safety influencing factor corresponding to the top drive A rod stress, the control component safety influencing factor corresponding to the top drive B rod stress, the control component safety influencing factor corresponding to the opening and closing rod stress, and the control component safety influencing factor corresponding to the back tie rod stress, wherein the mapping relationship can be one-to-one or many-to-one. The above influencing factors are all extracted from the automatic control system database, and the value range is between 0 and 1.

[0075] It needs to be explained that the top drive A rod and B rod work together to realize the opening and closing of the miter door. Ideally, the two should be subjected to similar stresses, but there may be differences in actual operation, which may be related to the asymmetry of the structure or the operating conditions. The opening and closing rod is usually directly involved in the opening and closing of the miter door, while the back pull rod provides reverse tension to balance the weight of the door body and the external water pressure. The stress of the opening and closing rod changes greatly during operation, while the stress of the back pull rod is relatively stable.

[0076] It needs to be explained that during the operation of the miter gate, the stresses of all rods usually change synchronously, that is, the greater the stress of the top drive A rod, the greater the stress of the corresponding top drive B rod, the opening and closing rod and the back pull rod, but the magnitude and pattern of the changes may be different.

[0077] It should be explained that the prestressed design is to offset or balance various adverse loads that may be generated during the operation of the ship lock miter gate, such as deadweight, water level changes, wind loads, etc. By comprehensively comparing the prestress and actual stress of each prestressed rod (top drive A rod, top drive B rod, opening and closing rod, back pull rod), we can have a more comprehensive understanding of the stress state of the ship lock miter gate in actual operation, and can also timely discover and identify potential structural safety risks. According to the evaluation results of prestress and actual stress, a targeted maintenance plan can be formulated to focus on the inspection and repair of components with abnormal stress. This helps to extend the service life of the ship lock miter gate. Prestressed design can significantly improve the structural stiffness of the ship lock miter gate, enabling it to better resist the effects of external loads. By comprehensively evaluating the difference between prestress and actual stress, the prestressed design can be further optimized to improve the overall stability of the structure. At the same time, accurate prestress evaluation can ensure that the ship lock miter gate maintains a stable and smooth operation during the opening and closing process. This helps to reduce operational failures and safety hazards caused by structural deformation, vibration and other problems.

[0078] According to the abnormal state evaluation value of the ship lock miter gate control equipment and the control component safety evaluation index, a comprehensive analysis is conducted to obtain the comprehensive performance evaluation index of the ship lock miter gate. The comprehensive performance evaluation index of the ship lock miter gate is used to quantitatively evaluate the comprehensive performance of the ship lock miter gate, and provide a basis for feedback and early warning of the comprehensive performance of the ship lock miter gate.

[0079] In a specific embodiment, the numerical expression of the comprehensive performance evaluation index of the ship lock miter gate is: ; In the formula, It represents the comprehensive performance evaluation index of the lock miter gate. Indicates the abnormal status assessment value of the lock miter gate control equipment. represents the control component safety assessment index, It represents the comprehensive performance influencing factor of the miter gate corresponding to the preset abnormal state evaluation value of the miter gate control equipment of the ship lock, It represents the comprehensive performance influencing factor of the miter door corresponding to the preset control component safety assessment index.

[0080] It needs to be explained that when the abnormal state assessment value of the lock miter gate control equipment is smaller and the control component safety assessment index is larger, the corresponding comprehensive performance evaluation index of the lock miter gate is larger, indicating that the comprehensive performance of the lock miter gate is better.

[0081] It should be explained that in this embodiment It represents the comprehensive performance influencing factor of the miter gate corresponding to the preset abnormal state evaluation value of the miter gate control equipment of the ship lock, The miter gate comprehensive performance influencing factor corresponding to the preset control component safety assessment index is represented, and the numerical values ​​of the degree of influence of the abnormal state assessment value of the ship lock miter gate control device and the unit value of the control component safety assessment index on the comprehensive performance of the ship lock miter gate are respectively represented. When used, the miter gate comprehensive performance influencing factor corresponding to the abnormal state assessment value of the ship lock miter gate control device and the miter gate comprehensive performance influencing factor corresponding to the control component safety assessment index can be directly obtained from the automatic control system database, and the corresponding relationship can be a preset mapping relationship. For example, the abnormal state assessment value of the ship lock miter gate control device and the control component safety assessment index are respectively mapped with the abnormal state assessment value of the ship lock miter gate control device and the miter gate comprehensive performance influencing factor corresponding to the control component safety assessment index preset in the automatic control system database to form a mapping set, and the real-time abnormal state assessment value of the ship lock miter gate control device and the control component safety assessment index are input into the mapping set to obtain the miter gate comprehensive performance influencing factor corresponding to the abnormal state assessment value of the ship lock miter gate control device and the miter gate comprehensive performance influencing factor corresponding to the control component safety assessment index, wherein the mapping relationship can be one-to-one or many-to-one. The above influencing factors are extracted from the automatic control system database, and the value range is between 0 and 1.

[0082] It should be understood that if Figure 2 As shown, curve a represents the relationship between the abnormal state evaluation value of the lock miter gate control equipment and the comprehensive performance evaluation index of the lock miter gate when the control component safety evaluation index is 0.8, curve b represents the relationship between the abnormal state evaluation value of the lock miter gate control equipment and the comprehensive performance evaluation index of the lock miter gate when the control component safety evaluation index is 1.0, and curve c represents the relationship between the abnormal state evaluation value of the lock miter gate control equipment and the comprehensive performance evaluation index of the lock miter gate when the control component safety evaluation index is 1.2.

[0083] It should be explained that, in this embodiment, the miter gate comprehensive performance impact factor corresponding to the abnormal state evaluation value of the ship lock miter gate control device is set to 0.5, and the miter gate comprehensive performance impact factor corresponding to the control component safety evaluation index is set to 0.3.

[0084] It needs to be explained that there is a close connection between the abnormal state evaluation value of the control equipment of the ship lock miter gate and the safety evaluation index of the control component. On the one hand, the abnormal state of the control equipment may directly affect the safety performance of the control component, such as electrical problems such as voltage fluctuation and current overload, which may cause damage or failure of the control component; on the other hand, the safety performance of the control component will also affect the overall operation state of the control equipment, such as the strength of the push-pull rod, which will directly affect the stability and reliability of the control equipment. By comprehensively considering the abnormal state evaluation value of the control equipment and the safety evaluation index of the control component, the overall operation state and safety performance of the ship lock miter gate can be more comprehensively understood. This helps to avoid the one-sidedness and misjudgment caused by a single parameter evaluation and improve the accuracy and reliability of the evaluation. Furthermore, by timely discovering and handling the abnormal state or safety hazards of the control equipment and components, the safety and stability of the ship lock miter gate during operation can be ensured. This helps to reduce the occurrence of safety accidents.

[0085] The pressure assessment threshold of the lock is obtained by matching the comprehensive performance evaluation index of the lock miter gate, and feedback and early warning of the comprehensive performance of the lock miter gate are provided.

[0086] Specifically, a mapping set of the ship lock pressure bearing assessment threshold values ​​corresponding to the ship lock miter gate comprehensive performance evaluation index interval is extracted from the automatic control system database, real-time ship lock miter gate comprehensive performance evaluation index is obtained, and the corresponding ship lock pressure bearing assessment threshold values ​​are obtained according to the mapping set.

[0087] It should be explained that the structural strength and stability assessment of the miter gate of the ship lock can reveal the limit state of the ship lock when it is under pressure, thus helping to determine the pressure threshold of the ship lock. The pressure assessment threshold of the ship lock is a quantitative expression of the comprehensive performance assessment results of the miter gate of the ship lock. By setting a reasonable threshold, the safety of the ship lock in normal operation and abnormal conditions can be ensured, while avoiding waste of resources or safety hazards caused by over-design or under-design.

[0088] Furthermore, feedback and early warning are given to the comprehensive performance of the ship lock miter gates. The specific feedback process is: comparing the comprehensive performance evaluation index of the ship lock miter gates with the comprehensive performance evaluation index threshold of the ship lock miter gates preset in the automatic control system database; if the comprehensive performance evaluation index of the ship lock miter gates is higher than or equal to the comprehensive performance evaluation index threshold of the ship lock miter gates, indicating that the performance evaluation of the ship lock miter gates is qualified, the result is displayed and output; if the comprehensive performance evaluation index of the ship lock miter gates is lower than the comprehensive performance evaluation index threshold of the ship lock miter gates, indicating that the performance evaluation of the ship lock miter gates is unqualified, then a risk warning is given to the ship lock miter gates.

[0089] The working environment data of the lock miter gate is obtained for analysis to obtain the lock pressure assessment value, the lock pressure assessment value is compared with the lock pressure assessment threshold, the comparison result is obtained, and the initial control strategy of the current working condition is adjusted according to the comparison result.

[0090] Specifically, the working environment data of the miter gate of the ship lock is obtained for analysis to obtain the pressure assessment value of the ship lock. The specific process is: the working environment data of the miter gate of the ship lock includes the water flow velocity and water flow pulsation pressure at each environmental monitoring point in a preset monitoring period and the upstream and downstream water levels in the preset monitoring period.

[0091] It needs to be explained that water level meters (such as float-type water level meters, pressure-type water level meters, etc.) can be used to directly measure upstream and downstream water levels, and flow meters (such as propeller-type flow meters, electromagnetic flow meters, etc.) can be used to directly measure water flow velocity in the water flow. Pressure sensors can be installed at various environmental monitoring points to monitor the pulsating pressure of the water flow in real time.

[0092] The allowable deviation water level, water flow velocity critical value and water flow pulsation pressure critical value are extracted from the automatic control system database, and based on the working environment data of the ship lock miter gate, a comprehensive analysis is performed to obtain the ship lock pressure assessment value. The ship lock pressure assessment value is used to quantitatively assess the degree to which the ship lock withstands external pressure, and provides a basis for adjusting the initial control strategy of the current working condition of the ship lock miter gate.

[0093] In a specific embodiment, the numerical expression of the evaluation value of the lock pressure is: ; In the formula, represents the pressure assessment value of the lock, t represents the time variable, , Indicates the current time point. represents the monitoring start time point, r represents the number of each environmental monitoring point, , q represents the total number of environmental monitoring points, represents the upstream water level at time t, represents the downstream water level at time t, represents the water flow velocity at the rth environmental monitoring point at time t, represents the water flow pulsation pressure at the i-th environmental monitoring point at time t, Indicates the allowable deviation water level. represents the critical value of water velocity, Indicates the critical value of water flow pulsation pressure, Indicates the pressure influencing factor of the lock corresponding to the preset water level difference, Indicates the pressure influencing factor of the lock corresponding to the preset water flow velocity, It indicates the pressure influencing factor of the lock corresponding to the preset water flow pulsation pressure.

[0094] It needs to be explained that when the upstream and downstream water level difference, water flow velocity and water flow pulsation pressure are greater, the corresponding ship lock pressure assessment value will be greater, indicating that the external pressure the ship lock is under will be greater.

[0095] It should be explained that in this embodiment Indicates the pressure influencing factor of the lock corresponding to the preset water level difference, Indicates the pressure influencing factor of the lock corresponding to the preset water flow velocity, The ship lock pressure bearing influence factors corresponding to the preset water flow pulsation pressure respectively represent the numerical values ​​of the influence degree of the upstream and downstream water level difference, water flow velocity and water flow pulsation pressure unit change value on the ship lock pressure bearing. When used, the ship lock pressure bearing influence factors corresponding to the water level difference, the ship lock pressure bearing influence factors corresponding to the water flow velocity and the ship lock pressure bearing influence factors corresponding to the water flow pulsation pressure can be directly obtained from the automatic control system database. The corresponding relationship can be a pre-set mapping relationship. For example, the water flow velocity and water flow pulsation pressure of each environmental monitoring point and the upstream and downstream water level are respectively mapped with the preset water flow velocity and water flow pulsation pressure and the ship lock pressure bearing influence factors corresponding to the upstream and downstream water levels in the automatic control system database to form a mapping set. The real-time water flow velocity and water flow pulsation pressure and the upstream and downstream water level are input into the mapping set to obtain the ship lock pressure bearing influence factors corresponding to the water level difference, the ship lock pressure bearing influence factors corresponding to the water flow velocity and the ship lock pressure bearing influence factors corresponding to the water flow pulsation pressure. The mapping relationship can be one-to-one or many-to-one. The above-mentioned influence factors are all extracted from the automatic control system database, and the value range is between 0 and 1.

[0096] It should be explained that the upstream and downstream water level difference refers to the height difference between the upstream and downstream water levels of the ship lock, which directly determines the potential energy difference when the water flows through the ship lock. During the operation of the ship lock, the greater the upstream and downstream water level difference, the greater the potential energy of the water when it passes through the ship lock, thereby driving the water to flow at a higher speed. When the water flow speed increases, irregular movements such as turbulence and vortices in the water flow will also increase accordingly, resulting in an increase in the pulsating pressure of the water flow. The pulsating pressure of the water flow is a random load that will have a dynamic impact on the ship lock structure and affect the stability and safety of the ship lock. Comprehensively considering parameters such as the upstream and downstream water level difference, water flow speed, and pulsating pressure of the water flow, we can have a more comprehensive understanding of the stress conditions of the ship lock during operation. This helps to improve the accuracy and reliability of the evaluation. At the same time, by analyzing the relationship between these parameters, optimization suggestions can also be provided for the structural design of the ship lock. For example, in the case of a large upstream and downstream water level difference, it is necessary to increase the strength and stability of the ship lock structure to resist the impact of the pulsating pressure of the water flow.

[0097] Furthermore, the lock pressure assessment value is compared with the lock pressure assessment threshold to obtain a comparison result. The specific comparison process is: compare the lock pressure assessment value with the lock pressure assessment threshold. If the lock pressure assessment value is lower than or equal to the lock pressure assessment threshold, it indicates that the lock is in normal operation under the current working condition, and there is no need to adjust the initial control strategy for the current working condition. If the lock pressure assessment value is higher than the lock pressure assessment threshold, it indicates that the lock is in abnormal operation under the current working condition, and the initial control strategy for the current working condition needs to be adjusted.

[0098] It needs to be explained that through the above-mentioned process of adjusting the initial control strategy of the lock for the current working conditions, the safe passage of ships can be ensured, the operating efficiency of the lock can be optimized, and the level of intelligent management can be improved, which will help improve the operating quality and safety of the lock, meet the passage needs of more ships, and at the same time reduce energy consumption and emissions and promote sustainable development.

[0099] Furthermore, the initial control strategy of the current working condition is adjusted according to the comparison results. The specific adjustment process is: if the lock pressure assessment value is higher than the lock pressure assessment threshold, the lock pressure assessment value and the lock pressure assessment threshold are differenced, and the adjustment value of the expected opening time of the lock miter gate in the current working condition is matched according to the difference between the lock pressure assessment value and the lock pressure assessment threshold.

[0100] It needs to be explained that the final opening time of the miter gate of the ship lock under the current working condition is obtained by accumulating the estimated opening time of the miter gate of the ship lock under the current working condition and the adjustment value of the estimated opening time.

[0101] It should be explained that the specific steps of the automatic control method provided by the present invention are: first, by real-time monitoring of the working condition data of the miter gate of the ship lock, including the pressure inside and outside the gate, the displacement of the passing ship, etc., the current opening state of the miter gate is judged. Then, according to the collected ship lock scale data and real-time working condition data, the initial control strategy of the current working condition of the miter gate of the ship lock is obtained. Then, the comprehensive performance evaluation method provided by the present invention is used to evaluate the comprehensive performance of the miter gate, and the evaluation threshold of the ship lock pressure is matched. By comparing the evaluation value of the ship lock pressure with the evaluation threshold, it can be judged whether the ship lock is in a normal operating state under the current working condition. If the evaluation value of the ship lock pressure is higher than the evaluation threshold, it indicates that the ship lock is in an abnormal operating state under the current working condition, and the initial control strategy needs to be adjusted at this time. The specific adjustment process is: according to the difference between the evaluation value of the ship lock pressure and the evaluation threshold, the adjustment value of the expected opening time of the ship lock miter gate under the current working condition is matched. By adjusting the opening time of the miter gate, the pressure borne by the ship lock is kept within a safe range, thereby ensuring the safe passage of ships and the efficient operation of the ship lock. In addition, the present invention also provides a feedback warning mechanism for the comprehensive performance of the ship lock miter gate. When the comprehensive performance evaluation index of the ship lock miter gate is lower than the preset threshold, the system will automatically send out a warning signal to prompt the management personnel to take timely measures for maintenance or repair to avoid potential safety hazards.

[0102] It should be explained that by implementing the above control method, not only can the accuracy and timeliness of the control strategy be ensured, but also the smooth passage of the ship can be ensured while optimizing the operation efficiency. It can also fully understand the equipment operation status and structural safety and timely discover potential risks.

[0103] It needs to be explained that the above-mentioned control method effectively solves the shortcomings of the existing automatic control method of the lock through real-time monitoring, comprehensive evaluation and dynamic adjustment, improves the intelligence level of the lock operation, ensures the safe passage of ships, and improves the quality and safety of the lock operation.

[0104] In a specific embodiment, the automatic control system database is used to store relevant data in the process of determining whether the initial control strategy of the current working condition of the ship lock miter gate needs to be adjusted, including rated voltage, rated current, rated power, critical temperature, critical vibration intensity, allowable deviation voltage, allowable deviation current and allowable deviation power, control component safety influence factor corresponding to the top drive A rod stress, control component safety influence factor corresponding to the top drive B rod stress, control component safety influence factor corresponding to the opening and closing rod stress and control component safety influence factor corresponding to the back pull rod stress, as well as the data extracted from the automatic control system database in the above embodiments. The relevant data can be directly measured by sensors, or various real-time data of the ship lock miter gate can be automatically collected by using a local control unit (Local Control Unit), and relevant hydrological data can be obtained in real time through the global geographic information system.

[0105] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. Automatic control method of ship lock miter gate based on water flow pulsation pressure, characterized in that: include: Obtain the real-time working data of the lock miter gate, determine the current working condition of the lock miter gate, collect the lock scale data, and obtain the initial control strategy of the current working condition of the lock miter gate according to the lock scale data and the real-time working data of the lock miter gate; Obtain the status data of the lock miter gate control equipment, and obtain the abnormal status evaluation value of the lock miter gate control equipment after processing, and collect the control component data of the lock miter gate, and comprehensively analyze to obtain the comprehensive performance evaluation index of the lock miter gate; According to the comprehensive performance evaluation index of the ship lock miter gate, the pressure assessment threshold of the ship lock is obtained, and feedback and early warning of the comprehensive performance of the ship lock miter gate are provided; The working environment data of the lock miter gate is obtained for analysis to obtain the lock pressure assessment value, the lock pressure assessment value is compared with the lock pressure assessment threshold, the comparison result is obtained, and the initial control strategy of the current working condition is adjusted according to the comparison result.

2. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 1 is characterized in that: The specific process of judging the current working condition of the ship lock miter gate is as follows: The real-time working data of the miter gate of the ship lock, including the pressure inside and outside the gate and the displacement of the passing ship; The pressure difference is calculated based on the pressure inside and outside the gate, and the pressure difference range is extracted from the automatic control system; If the pressure difference between the inside and outside of the gate is within the pressure difference range, it indicates that the miter gate is in the open state; If the pressure difference between the inside and outside of the gate is not within the pressure difference range, it indicates that the miter gate is in a closed state.

3. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 2 is characterized in that: The specific process of obtaining the initial control strategy of the current working condition of the ship lock miter gate is as follows: According to the displacement of the passing ship, the expected opening angle of the miter gate of the lock is matched; Obtaining ship lock scale data, the ship lock scale data including: effective dimensions of the lock chamber, number and size of discharge orifices; According to the expected opening angle of the miter gate and the lock scale data, the maximum effective size of the lock chamber, the maximum number and maximum size of the discharge holes are extracted from the automatic control system, and the expected opening time of the miter gate is obtained through comprehensive analysis; The estimated opening angle of the ship lock miter gate and the estimated opening time of the ship lock miter gate are marked as the initial control strategy for the current working condition.

4. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 1 is characterized in that: The abnormal state evaluation value of the ship lock miter gate control device is obtained through processing, and the specific process is: The state data of the lock miter gate control equipment includes the voltage, current, power, temperature and vibration intensity of the control equipment at each time point within a preset monitoring period; The control device specifically refers to electrical equipment; The rated voltage, rated current, rated power, rated temperature, rated vibration intensity, allowable deviation voltage, allowable deviation current, allowable deviation power, allowable deviation temperature and allowable deviation vibration intensity are extracted from the automatic control system database, and based on the status data of the ship lock miter gate control equipment, a comprehensive analysis is performed to obtain an abnormal state evaluation value of the ship lock miter gate control equipment. The abnormal state evaluation value of the ship lock miter gate control equipment is used to quantitatively evaluate the abnormal degree of the status of the ship lock miter gate control equipment, and provide a basis for evaluating the comprehensive performance of the miter gate.

5. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 1 is characterized in that: The control component data of the ship lock miter gate include the prestress of the top drive A rod, the prestress of the top drive B rod, the prestress of the opening and closing rod, and the prestress of the back tie rod, and the stress of the top drive A rod, the stress of the top drive B rod, the stress of the opening and closing rod, and the stress of the back tie rod at each time point in the preset monitoring period.

6. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 5 is characterized in that: The comprehensive analysis obtains the comprehensive performance evaluation index of the ship lock miter gate, and the specific analysis process is as follows: The allowable deviation stress of the top drive rod, the allowable deviation stress of the opening and closing rod and the allowable deviation stress of the back tie rod are extracted from the automatic control system database, and the control component safety evaluation index is obtained by comprehensive analysis based on the control component data of the ship lock miter gate. The control component safety evaluation index is used to quantitatively evaluate the safety degree of the control component of the miter gate and provide a basis for evaluating the comprehensive performance of the miter gate; According to the abnormal state evaluation value of the ship lock miter gate control equipment and the control component safety evaluation index, a comprehensive analysis is conducted to obtain the comprehensive performance evaluation index of the ship lock miter gate. The comprehensive performance evaluation index of the ship lock miter gate is used to quantitatively evaluate the comprehensive performance of the ship lock miter gate, and provide a basis for feedback and early warning of the comprehensive performance of the ship lock miter gate.

7. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 6 is characterized in that: The feedback warning of the comprehensive performance of the ship lock miter gate is specifically conducted as follows: The comprehensive performance evaluation index of the ship lock miter gate is compared with the comprehensive performance evaluation index threshold of the ship lock miter gate preset in the automatic control system database. If the comprehensive performance evaluation index of the ship lock miter gate is higher than or equal to the comprehensive performance evaluation index threshold of the ship lock miter gate, it indicates that the performance evaluation of the ship lock miter gate is qualified, and the result is displayed and output; if the comprehensive performance evaluation index of the ship lock miter gate is lower than the comprehensive performance evaluation index threshold of the ship lock miter gate, it indicates that the performance evaluation of the ship lock miter gate is unqualified, and a risk warning is issued for the ship lock miter gate.

8. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 1 is characterized in that: The process of obtaining and analyzing the working environment data of the ship lock miter gate to obtain the ship lock pressure assessment value is as follows: The working environment data of the ship lock miter gate include the water flow velocity and water flow pulsation pressure at each environmental monitoring point in the preset monitoring period and the upstream and downstream water levels in the preset monitoring period; The allowable deviation water level, water flow velocity critical value and water flow pulsation pressure critical value are extracted from the automatic control system database, and based on the working environment data of the ship lock miter gate, a comprehensive analysis is performed to obtain the ship lock pressure assessment value. The ship lock pressure assessment value is used to quantitatively assess the degree to which the ship lock withstands external pressure, and provides a basis for adjusting the initial control strategy of the current working condition of the ship lock miter gate.

9. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 8 is characterized in that: The ship lock pressure assessment value is compared with the ship lock pressure assessment threshold to obtain a comparison result. The specific comparison process is as follows: The lock pressure assessment value is compared with the lock pressure assessment threshold. If the lock pressure assessment value is lower than or equal to the lock pressure assessment threshold, it indicates that the lock is in normal operation under the current working condition and there is no need to adjust the initial control strategy for the current working condition. If the lock pressure assessment value is higher than the lock pressure assessment threshold, it indicates that the lock is in abnormal operation under the current working condition and it is necessary to adjust the initial control strategy for the current working condition.

10. The automatic control method of ship lock miter gate based on water flow pulsation pressure according to claim 9 is characterized in that: The initial control strategy of the current working condition is adjusted according to the comparison result, and the specific adjustment process is: If the lock pressure assessment value is higher than the lock pressure assessment threshold, the lock pressure assessment value and the lock pressure assessment threshold are differentially calculated, and the adjustment value of the expected opening time of the lock miter gate under the current working condition is matched based on the difference between the lock pressure assessment value and the lock pressure assessment threshold.

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