A safety control system for an experimental pool with lifting function

Abstract

The application provides a safety control system of an experimental pool with a lifting function, which comprises a lifting platform installed at the bottom of the experimental pool and a wave generator arranged around the experimental pool. The lifting platform is in real-time communication connection with a lifting platform controller, the wave generator is in stable communication connection with a wave generator controller, and bidirectional data interaction and instruction transmission are realized between the two controllers to form a complete cooperative control system. In actual operation, after receiving a lifting instruction, the lifting platform controller inquires a first running state of the wave generator from the wave generator controller, and controls the lifting platform to lift according to the first running state. Similarly, before executing a wave making instruction, the wave generator controller actively acquires a second running state of the lifting platform, and controls the wave generator to make waves on the experimental pool according to the second running state, so that the reliability and safety of the whole system are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ocean engineering experiments, and particularly relates to a safety control system of an experimental pool with a lifting function. BACKGROUND

[0002] In the field of ocean engineering, in order to simulate more marine environment scenes, many ocean engineering laboratories currently configure experimental pools or water tanks with a lifting bottom plate (platform) function. Such experimental pools can simulate marine environments under different water depth conditions by adjusting the height of the bottom plate, thereby providing important support for the testing and research of various marine engineering equipment.

[0003] However, in actual application, how to ensure the safety of the experimental pool during lifting operation and wave making has become a problem to be solved. In the lifting and wave making process of the traditional experimental pool, an effective safety control mechanism is often lacking, and once improper operation or equipment failure occurs, a safety accident is easily caused, which causes damage to the experimenters and equipment. SUMMARY

[0004] The present application aims to at least solve one of the above technical defects, in particular, the technical defect that the traditional experimental pool in the prior art lacks an effective safety control mechanism during lifting and wave making, and once improper operation or equipment failure occurs, a safety accident is easily caused, which causes damage to the experimenters and equipment.

[0005] The present application provides a safety control system of an experimental pool with a lifting function, which comprises a lifting platform arranged at the bottom of the experimental pool, and a wave maker arranged near the experimental pool.

[0006] The lifting platform is in communication connection with a lifting platform controller, the wave maker is in communication connection with a wave maker controller, and the lifting platform controller and the wave maker controller are in mutual communication.

[0007] The lifting platform controller acquires a first running state of the wave maker before executing a lifting instruction, and controls the lifting platform to perform lifting operation according to the first running state.

[0008] The wave maker controller acquires a second running state of the lifting platform before executing a wave making instruction, and controls the wave maker to make waves in the experimental pool according to the second running state.

[0009] Optionally, the process that the lifting platform controller acquires a first running state of the wave maker before executing a lifting instruction, and controls the lifting platform to perform lifting operation according to the first running state, comprises:

[0010] The lifting platform controller acquires a first running state of the wave generator through the wave generator controller before executing the lifting instruction, and sets the lifting platform to a locked state when judging that the first running state is that the wave generator is running.

[0011] The lifting platform controller releases the locked state of the lifting platform when judging that the first running state is that the wave generator is not running, and controls the lifting platform to perform lifting operation according to the lifting instruction.

[0012] Optionally, the wave generator controller acquires a second running state of the lifting platform before executing the wave generation instruction, and controls the wave generator to generate waves in the experimental pool according to the second running state, including:

[0013] The wave generator controller acquires a second running state of the lifting platform through the lifting platform controller before executing the wave generation instruction, and sets the wave generator to a locked state when judging that the second running state is that the lifting platform is running.

[0014] The wave generator controller releases the locked state of the wave generator when judging that the second running state is that the lifting platform is not running, and controls the wave generator to generate waves in the experimental pool according to the wave generation instruction.

[0015] Optionally, the system further comprises a weighing force sensor arranged at the bottom of the lifting platform, and a point pressure sensor arranged at the upper surface of the lifting platform in a spaced manner.

[0016] The weighing force sensor and the point pressure sensor are connected with the lifting platform controller.

[0017] Optionally, the lifting platform controller is further configured to:

[0018] acquire pressure information collected by the weighing force sensor and the point pressure sensor in real time, convert the real-time load into an analog signal after calculating the real-time load of the lifting platform according to the pressure information, and send the analog signal to the wave generator controller.

[0019] Optionally, the process in which the lifting platform controller converts the real-time load into an analog signal and sends the analog signal to the wave generator controller includes:

[0020] The lifting platform controller compares the real-time load with a preset safety warning threshold and a danger threshold, respectively, and if the real-time load does not reach the safety warning threshold, or exceeds the safety warning threshold but does not reach the danger threshold, the lifting platform controller directly converts the real-time load into an analog signal and sends the analog signal to the wave generator controller.

[0021] If the real-time load reaches the safety warning threshold, a first signal corresponding to the safety warning threshold is sent to the wave generator controller as an analog signal;

[0022] If the real-time load reaches the danger threshold, a second signal corresponding to the danger threshold is sent to the wave generator controller as an analog signal.

[0023] Optionally, the wave generation instruction includes wave train data generated by a user through the non-wave generator control terminal;

[0024] Before the wave generator controller controls the wave generator to generate waves in the experimental pool according to the second running state, the wave generator controller further includes:

[0025] The wave generator controller acquires an analog signal sent by the lifting platform controller during operation of the lifting platform, and a constraint relationship between the lifting platform height and the maximum allowable wave height stored in the wave generator control terminal;

[0026] After the wave generator controller determines the current height of the lifting platform according to the analog signal, the wave generator controller detects the wave train data according to the current height and the constraint relationship between the lifting platform height and the maximum allowable wave height, and determines whether to execute the control of the wave generator to generate waves in the experimental pool according to the second running state according to the detection result.

[0027] Optionally, the wave generation instruction further includes wave train data input by a user through the wave generator control terminal;

[0028] Before the wave generator controller executes the wave generation instruction, the wave generator controller further includes:

[0029] The wave generator control terminal determines whether the wave train data satisfies the constraint relationship between the lifting platform height and the maximum allowable wave height according to the pre-stored constraint relationship, and sends the wave train data to the wave generator controller in the form of a wave generation instruction when it is determined that the wave train data satisfies the constraint relationship.

[0030] Optionally, the second running state includes a state in which the lifting platform is not running, and the analog signal includes a first signal and a second signal;

[0031] After the wave generator controller controls the wave generator to generate waves in the experimental pool according to the second running state, the wave generator controller further includes:

[0032] The wave generator controller monitors the analog signal in real time during operation of the wave generator, and adjusts the operation state of the wave generator to a safe slow stop state when the analog signal is the first signal, and adjusts the operation state of the wave generator to an emergency stop state when the analog signal is the second signal.

[0033] Optionally, the system further comprises a wave height sensor arranged above the experimental pool.

[0034] The wave generator controller controls the wave generator to generate waves on the experimental pool according to the second operation state, and further comprises:

[0035] The wave generator controller collects wave height information in real time by using the wave height sensor during operation of the wave generator and feeds back to the wave generator control end, and compares the wave height information with the allowed maximum wave height corresponding to the current height, if the wave height information is not greater than the allowed maximum wave height, the wave generator continues to generate waves according to the wave train data, if the wave height information is greater than the allowed maximum wave height, the operation state of the wave generator is adjusted to a safe slow stop state.

[0036] From the above technical solutions, the embodiments of the present application have the following advantages:

[0037] The safety control system of the experimental pool with lifting function provided by the present application mainly consists of two core components: an adjustable lifting platform installed at the bottom of the experimental pool, and a wave generator arranged around the experimental pool. Among them, the lifting platform of the present application can keep real-time communication connection with the dedicated lifting platform controller through wired or wireless mode, while the wave generator also establishes a stable communication link with the independent wave generator controller, and the two controllers also realize bidirectional data interaction and instruction transmission, forming a complete cooperative control system. In actual operation process, after receiving the lifting instruction, the lifting platform controller will first query the current working state (i.e. the first operation state) of the wave generator to the wave generator controller, and only when it is confirmed that the wave generator is in the safe operation range, the lifting platform will be accurately controlled according to the preset program to complete the corresponding lifting action. Similarly, before executing the wave generation instruction, the wave generator controller will also actively obtain the real-time position and working state (i.e. the second operation state) of the lifting platform, and only when the lifting platform is in the safe position, the wave generator will start to accurately simulate the wave of the experimental pool. This bidirectional state detection and cooperative control mechanism ensures the reliability and safety of the whole safety control system, greatly reduces the occurrence of safety accidents, and also provides a more accurate and safer wave simulation environment for marine engineering experiments. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0039] Figure 1 A system architecture diagram of a safety control system of an experimental pool with lifting function provided by the embodiment of the present application;

[0040] Figure 2 A control process diagram of a lifting platform controller provided by the embodiment of the present application;

[0041] Figure 3 A control process diagram of a wave generator controller provided by the embodiment of the present application;

[0042] Figure 4 A control structure diagram provided by the embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0044] In one embodiment, as shown in Figure 1 , a safety control system of an experimental pool with lifting function is provided. The system comprises a lifting platform arranged at the bottom of the experimental pool, and a wave generator arranged near the experimental pool. Figure 1 The lifting platform is in communication connection with a lifting platform controller, and the wave generator is in communication connection with a wave generator controller. The lifting platform controller and the wave generator controller communicate with each other.

[0045] The lifting platform controller acquires a first running state of the wave generator before executing a lifting instruction, and controls the lifting platform to perform lifting operation according to the first running state.

[0046] The wave generator controller acquires a second running state of the lifting platform before executing a wave generating instruction, and controls the wave generator to generate waves in the experimental pool according to the second running state.

[0047] ​

[0048] In this embodiment, the safety control system of the experimental pool can include a lifting platform arranged at the bottom of the experimental pool, and a wave generator arranged near the experimental pool. Here, the bottom can be the area directly below the experimental pool, ensuring that the lifting platform can stably support and drive the bottom plate of the experimental pool to lift; the wave generator arranged near can be installed on any side of the experimental pool, as long as it can ensure effective wave making to the water in the experimental pool, and its specific installation position can be flexibly adjusted according to the actual layout and use demand of the experimental pool.

[0049] Among them, the lifting platform of the present application and the special lifting platform controller are connected by wired or wireless communication, so that the lifting platform controller can obtain the state information of the lifting platform in real time and control it accurately. Similarly, the wave generator is also connected with the independent wave generator controller, and the wave generator controller is responsible for receiving the wave making instruction and controlling the wave generator to make waves according to the set parameters. More importantly, the present application realizes the bidirectional data interaction and instruction transmission between the lifting platform controller and the wave generator controller. This design makes it possible for the lifting platform controller to query the current working state of the wave generator when it receives the lifting instruction during the experiment, and only when it confirms that the wave generator will not be affected or cause safety hazards due to lifting operation, will it control the lifting platform to lift according to the preset program. Similarly, when the wave generator controller receives the wave making instruction, it will also actively obtain the real-time position and working state of the lifting platform, to ensure that the wave generator starts wave simulation only when the lifting platform is in a safe position.

[0050] In a specific implementation, to ensure the double safety of the experimental pool during lifting and wave making, the safety control system of the present application adopts a refined cooperative control strategy. Specifically, when the lifting platform controller receives the lifting instruction from the upper computer, it will not immediately execute the lifting action, but will first query the current running state of the wave generator, i.e. the first running state, through the communication link established with the wave generator controller. This can avoid lifting operation when the wave generator is working, thereby preventing wave abnormalities or equipment damage caused by changes in the pool structure.

[0051] If the query result shows that the wave generator is in a non-running state, i.e. the first running state indicates that the wave generator is not started or has stopped, the lifting platform controller will release the locking mechanism of the lifting platform, allowing it to accurately adjust the position according to the preset lifting instruction. During this process, the lifting platform controller will continuously monitor the motion state of the lifting platform to ensure that it reaches the target position smoothly and accurately.

[0052] Meanwhile, the wave generator controller also takes similar preventive measures before executing the wave generation instruction. The wave generator controller can obtain the current position and working state of the lifting platform, i.e., the second running state, through communication with the lifting platform controller. Only when it is confirmed that the lifting platform has been stably placed in the non-lifting state, i.e., the lifting action will not affect the accuracy of wave simulation, the wave generator controller will start the wave generator to generate accurate waves in the experimental pool according to the wave train data input by the user.

[0053] In the above embodiment, the system mainly consists of two core components: an adjustable lifting platform installed at the bottom of the experimental pool and a wave generator arranged around the experimental pool. Among them, the lifting platform of the present application can be connected in real time with the dedicated lifting platform controller through wired or wireless communication, and the wave generator also establishes a stable communication link with the independent wave generator controller, and the two controllers realize bidirectional data interaction and instruction transmission, forming a complete cooperative control system. In actual operation, after receiving the lifting instruction, the lifting platform controller will first query the current working state of the wave generator (i.e., the first running state) to the wave generator controller, and only when it is confirmed that the wave generator is within the safe operating range, the lifting platform will be accurately controlled according to the preset program to complete the corresponding lifting action. Similarly, before executing the wave generation instruction, the wave generator controller will also actively obtain the real-time position and working state of the lifting platform (i.e., the second running state), and only when the lifting platform is in a safe position, the wave generator will start to simulate accurate waves in the experimental pool. This bidirectional state detection and cooperative control mechanism ensures the reliability and safety of the entire safety control system, greatly reduces the occurrence of safety accidents, and also provides a more accurate and safer wave simulation environment for marine engineering experiments.

[0054] In one embodiment, as shown in Figure 2 , Figure 2 the control process schematic diagram of the lifting platform controller provided by the embodiment of the present application; the process in which the lifting platform controller obtains the first running state of the wave generator before executing the lifting instruction and controls the lifting platform to perform lifting operation according to the first running state can include.

[0055] The lifting platform controller obtains the first running state of the wave generator through the wave generator controller before executing the lifting instruction, and sets the lifting platform to a locked state when it is determined that the first running state is that the wave generator is running.

[0056] The lifting platform controller releases the locked state of the lifting platform when it is determined that the first running state is that the wave generator is not running, and controls the lifting platform to perform lifting operation according to the lifting instruction.

[0057] In this embodiment, when the lifting platform controller performs the operation of obtaining the first running state of the wave generator, it can send a state query request through the communication link previously established with the wave generator controller. After receiving the request, the wave generator controller can immediately detect the current running state of the wave generator and feed back the detection result to the lifting platform controller in a specific data format. The first running state mentioned here can specifically include information such as whether the wave generator is in a starting state, whether it is executing a wave generation instruction, and the current wave generation parameters. After the lifting platform controller receives the running state data fed back by the wave generator controller, it will analyze and judge it. If the judgment result is that the wave generator is running, the lifting platform controller will immediately set the lifting platform to a locked state to prevent it from performing any lifting operation, in order to prevent interference with the ongoing wave generation experiment or safety accidents caused by changes in the pool structure. On the contrary, if the judgment result is that the wave generator is not running, the lifting platform controller will release the locked state of the lifting platform to allow it to perform corresponding lifting operations according to the received lifting instructions. During the lifting operation of the lifting platform, the lifting platform controller will also continuously monitor its motion state to ensure that it can smoothly and accurately reach the preset target position.

[0058] For example, a digital output terminal on the lifting platform controller of the present application can be connected to a digital input terminal on the wave generator controller (let the digital signal be bRunningPlatform), and similarly, a digital output terminal on the wave generator controller can be connected to a digital input terminal on the controller (let the digital signal be bRunningWave). When the lifting platform controller is not operating or is stopped, bRunningPlatform = 0. Before the lifting platform starts running, the signal bRunningWave is detected. If the signal is 1 (high level indicating that the wave generator is running), the lifting platform is locked into a waiting state until bRunningWave = 0 to release the locked state. When bRunningWave = 0 is detected, the lifting platform can be controlled to move, and at this time, bRunningPlatform is set to 1 (high level), indicating that the lifting platform is being operated.

[0059] This state detection and control mechanism through digital signals not only improves the response speed of the system, but also greatly enhances the controllability and safety of the experimental process. In addition, the lifting platform controller of the present application can also set more digital or analog signal interfaces according to actual needs to connect and cooperatively control more experimental equipment, so as to meet the safety control needs in different experimental scenarios. Through this fine control strategy, the safety control system of the experimental pool with lifting function of the present application can provide a safer and more reliable experimental environment for experimental personnel.

[0060] In one embodiment, as shown in Figure 3 Figure 3 A control process diagram of a wave generator controller provided by the embodiment of the present application; the wave generator controller acquires a second running state of the lifting platform before executing a wave generating instruction, and controls the wave generator to generate waves in the experimental pool according to the second running state, which can include:

[0061] The wave generator controller acquires the second running state of the lifting platform through the lifting platform controller before executing the wave generating instruction, and sets the wave generator to a locked state when determining that the second running state is that the lifting platform is running.

[0062] The wave generator controller releases the locked state of the wave generator when determining that the second running state is that the lifting platform is not running, and controls the wave generator to generate waves in the experimental pool according to the wave generating instruction.

[0063] In the embodiment, the wave generator controller can send a state query instruction through a stable communication link previously constructed with the lifting platform controller when executing the operation of acquiring the second running state of the lifting platform. The lifting platform controller can immediately detect the current running state of the lifting platform after receiving the instruction, and feed back the detection result to the wave generator controller in a standard data format. The second running state mentioned herein specifically covers key information such as whether the lifting platform is in a starting state, whether it is executing a lifting instruction, and the current lifting parameters. After the wave generator controller receives the running state data fed back by the lifting platform controller, it can analyze and accurately determine the data. If the determination result is that the lifting platform is running, the wave generator controller will immediately set the wave generator to a locked state to prevent it from performing any wave generating operation, in order to prevent interference with the ongoing lifting experiment or safety accidents caused by wave generating actions. On the contrary, if the determination result is that the lifting platform is not running, the wave generator controller will release the locked state of the wave generator to allow it to perform corresponding wave generating operations according to the received wave generating instruction. During the wave generating operation of the wave generator, the wave generator controller will also continuously monitor the working state of the wave generator to ensure that it can stably and accurately generate waves meeting the experimental requirements.

[0064] ​For example, the wave generator controller of the present application can be connected with the lifting platform controller through a specific digital signal interface to realize real-time transmission and sharing of state information. When the wave generator controller needs to obtain the second running state of the lifting platform, it sends a state query request to the lifting platform controller. After receiving the request, the lifting platform controller immediately detects the current running state of the lifting platform and feeds back the detection result to the wave generator controller in the form of a digital signal (let the digital signal be bRunningPlatform). When the wave generator controller is not operating, or when it is stopped, bRunningWave = 0 is output. Before the wave generator operates, if the bRunningPlatform signal is detected and the signal is 1 (high level indicating that the lifting platform is running), the wave generator is locked in a waiting state until bRunningPlatform = 0, and the locked state is released to allow it to perform corresponding wave generation operations according to the received wave generation instructions.

[0065] This state detection and control mechanism through the signal interface not only improves the response speed and accuracy of the system, but also greatly enhances the controllability and safety of the experimental process. In addition, the wave generator controller of the present application can also flexibly set more digital or analog signal interfaces according to actual needs to connect and cooperatively control more experimental equipment, thereby meeting the safety control needs in different experimental scenarios.

[0066] In one embodiment, the system further comprises a weighing force sensor arranged at the bottom of the lifting platform and point pressure sensors arranged at intervals on the upper surface of the lifting platform.

[0067] The weighing force sensor and the point pressure sensors are connected with the lifting platform controller.

[0068] In this embodiment, the safety control system can also include a weighing force sensor and a point pressure sensor. The weighing force sensor is arranged at the bottom of the lifting platform, and its main function is to monitor the total weight of the lifting platform and the objects carried by it in real time. This design can ensure that the lifting platform does not cause safety hazards due to overloading during the experiment. When the load on the lifting platform changes, the weighing force sensor will immediately capture the change and transmit the corresponding weight data to the lifting platform controller in the form of an electrical signal.

[0069] Meanwhile, point pressure sensors are evenly distributed on the upper surface of the lifting platform at certain intervals. The interval size and sensor density can be set according to the platform size, available placement location, and other specific parameters. Generally, one pressure measuring point per 1 meter can be used for execution, which can accurately perceive the pressure distribution at different positions on the lifting platform. These sensors are crucial for monitoring the stability of the experimental tank during lifting, as any uneven pressure distribution can cause the tank to tilt or the structure to be damaged. The point pressure sensors also transmit the detected pressure data to the lifting platform controller in real time.

[0070] After receiving data from the weighing force sensor and the point pressure sensor, the lifting platform controller performs comprehensive analysis and processing. If the weight or pressure data exceeds the preset safety range, the controller will immediately take appropriate protective measures, such as stopping the lifting operation, issuing an alarm signal, etc., to ensure the safety and reliability of the experimental process.

[0071] In addition, the introduction of these sensors enables experimenters to more accurately control experimental conditions. For example, by adjusting the water quantity or load distribution in the experimental tank, experimenters can observe changes in the weighing force sensor and point pressure sensor data, allowing for more detailed regulation of the experimental process. This fine control not only improves the accuracy of the experiment, but also provides experimenters with more experimental parameters and control methods.

[0072] In one embodiment, the lifting platform controller can also be used to:

[0073] The lifting platform controller can also be used to:

[0074] In this embodiment, the lifting platform controller can use built-in algorithms to accurately calculate the pressure information collected by the weighing force sensor and the point pressure sensor, thereby obtaining real-time load data of the lifting platform. This calculation process takes into account the pressure distribution at each point on the lifting platform and the overall weight, ensuring the accuracy and reliability of the load data.

[0075] Subsequently, the lifting platform controller can convert the calculated real-time load data into an analog signal, which has the characteristics of easy transmission and processing. After the conversion is completed, the lifting platform controller can immediately send the analog signal to the wave generator controller. After receiving this analog signal, the wave generator controller will analyze and process it to obtain the real-time load information of the lifting platform. This information is crucial to the wave generator controller, because it can adjust the wave parameters according to the real-time load of the lifting platform to ensure that the wave generation process does not cause excessive impact or influence on the lifting platform, thereby ensuring the safety and stability of the entire experimental system.

[0076] In one embodiment, after the lifting platform controller converts the real-time load into an analog signal and sends it to the wave generator controller, the process can include:

[0077] The lifting platform controller compares the real-time load with the preset safety warning threshold and the dangerous threshold, respectively. If the real-time load does not reach the safety warning threshold, or exceeds the safety warning threshold but does not reach the dangerous threshold, the lifting platform controller directly converts the real-time load into an analog signal and sends it to the wave generator controller.

[0078] If the real-time load reaches the safety warning threshold, the lifting platform controller sends a first signal corresponding to the safety warning threshold to the wave generator controller as an analog signal.

[0079] If the real-time load reaches the dangerous threshold, the lifting platform controller sends a second signal corresponding to the dangerous threshold to the wave generator controller as an analog signal.

[0080] In this embodiment, after the lifting platform controller obtains the real-time load data, it starts an internal comparison mechanism. This mechanism first compares the real-time load with the preset safety warning threshold. If the real-time load is lower than the safety warning threshold, it means that the lifting platform is currently in a safe load range. At this time, the lifting platform controller directly converts the real-time load data into an analog signal and sends it to the wave generator controller, so that the wave generator controller can understand the current load state of the lifting platform and make corresponding wave parameter adjustments accordingly. For example, the lifting platform controller can be connected to an analog input terminal of the wave generator controller through an analog output terminal, and the analog signal is PosPlatform, with a signal range of -10V~10V, and the travel range of the lifting platform is mapped to the 0-10V interval.

[0081] If the real-time load exceeds the safety warning threshold but has not yet reached the danger threshold, it indicates that the lifting platform is in a warning state. Although it does not yet pose a direct safety threat, it requires attention. In this case, the lifting platform controller will not directly send real-time load data, but will instead send the first signal corresponding to the safety warning threshold as an analog signal to the wave generator controller. This first signal is a preset warning signal, such as PosPlatform = -3V, used to inform the wave generator controller that the lifting platform is approaching but has not yet exceeded its safe load limit.

[0082] When the real-time load reaches or exceeds the danger threshold, the situation becomes urgent. At this point, the lifting platform may face the risk of overload, posing a direct threat to the safety of experimental equipment and personnel. To respond quickly to this emergency, the lifting platform controller will immediately send a second signal corresponding to the danger threshold as an analog signal to the wave generator controller. This second signal is an emergency stop signal, such as PosPlatform = -9V. It requires the wave generator controller to immediately stop the wave generation operation and may trigger other safety protection measures, such as emergency braking of the lifting platform, to prevent accidents.

[0083] Through this hierarchical signal transmission mechanism, the lifting platform controller can communicate flexibly and accurately with the wave generator controller according to the real-time load of the lifting platform, ensuring that the entire experimental system can respond appropriately to different load conditions, thereby maximizing the safety and smooth progress of the experiment.

[0084] In one embodiment, such as Figure 4 As shown, Figure 4 This is a simplified diagram of the control structure provided in an embodiment of this application; the wave generation command may include wave train data generated by the user through a non-wave generator control terminal.

[0085] Before the wave generator controller controls the wave generator to generate waves in the experimental water tank according to the second operating state, it may further include:

[0086] The wave generator controller acquires the analog signals sent by the lifting platform controller during the operation of the lifting platform, as well as the constraint relationship between the lifting platform height and the maximum allowable wave height stored in the wave generator control terminal.

[0087] After determining the current height of the lifting platform based on the analog signal, the wave generator controller detects the wave train data based on the current height and the constraint relationship between the lifting platform height and the maximum allowable wave height, and determines whether to execute the second operating state control to control the wave generator to generate waves in the experimental water tank based on the detection results.

[0088] In this embodiment, the wave generator controller will perform a series of information acquisition and processing operations before preparing to execute the wave generation instruction. First, it will receive analog signals continuously sent by the lifting platform controller during the operation of the lifting platform, which carries the current running state and height information of the lifting platform. At the same time, the wave generator controller will also retrieve the pre-stored constraint relationship data between the lifting platform height and the maximum allowable wave height from the wave generator control terminal.

[0089] It can be understood that before the experimental pool is put into use, the application determines the maximum wave height value that the platform can safely withstand at different lifting platform heights through mechanical analysis and experimental testing of the mechanical structure of the lifting platform. Then, the application can arrange these height values and corresponding maximum wave height values to establish a constraint relationship database between the lifting platform height and the maximum allowable wave height. The database is stored in the PC of the wave generator control terminal for retrieval during the experiment.

[0090] Further, since the wave generation instruction obtained by the wave generator controller includes wave train data generated by the user through the non-wave generator control terminal, in order to ensure safety, the wave generator controller needs to detect these wave train data. Specifically, it will accurately analyze the current height of the lifting platform according to the analog signals received from the lifting platform controller. Subsequently, using the pre-stored constraint relationship database between the lifting platform height and the maximum allowable wave height, the wave generator controller can quickly query the maximum allowable wave height value of the experimental pool at the current lifting platform height.

[0091] Next, the wave generator controller can compare and analyze the wave train data in the wave generation instruction with this maximum wave height value. If the wave height indicated by the wave train data exceeds the maximum allowable wave height at the current height, the wave generator controller will determine that the wave generation instruction may pose a safety threat to the experimental system, and therefore will not perform the operation of controlling the wave generator to generate waves in the experimental pool according to the second running state of the lifting platform. On the contrary, it will also send warning information to the user, prompting the user to adjust the wave parameters to ensure that the wave height is within the safe range.

[0092] Conversely, if the wave height indicated by the wave train data does not exceed the maximum allowable wave height, the wave generator controller considers the wave generation instruction to be safe and can be executed. Therefore, it will determine whether to actually start the wave generator to generate waves according to the previously obtained second running state of the lifting platform. If the lifting platform is in a non-running state, the wave generator controller will release the lock state of the wave generator and control the wave generator to generate corresponding waves according to the parameters in the wave generation instruction to meet the experimental requirements.

[0093] Through the wave-making wave train data detection mechanism based on the constraint relationship between the lifting platform height and the allowed maximum wave height, the safety control system of the application can flexibly cope with various wave-making requirements under the premise of ensuring experimental safety, providing an experimental environment that is both safe and efficient for experimenters.

[0094] In one embodiment, the wave-making instruction can also include wave-making wave train data input by the user through the wave-making machine control end.

[0095] Before executing the wave-making instruction, the wave-making machine controller can also include:

[0096] According to the constraint relationship between the lifting platform height and the allowed maximum wave height pre-stored, the wave-making machine control end determines whether the wave-making wave train data meets the constraint relationship, and when it is determined that the wave-making wave train data meets the constraint relationship, the wave-making wave train data is sent to the wave-making machine controller in the form of a wave-making instruction.

[0097] In this embodiment, when the user inputs the wave-making wave train data through the wave-making machine control end, the system starts a pre-positioned safety verification process. The wave-making machine control end first calls the constraint relationship database of the lifting platform height and the allowed maximum wave height pre-stored, which is established through experimental testing and mechanical analysis, and clearly defines the safe wave height range that the experimental pool can withstand at different heights.

[0098] Therefore, the wave-making machine control end of the application can compare the expected wave height in the wave-making wave train data input by the user with the allowed maximum wave height corresponding to the current lifting platform height: if the expected wave height exceeds the safety threshold, the system can immediately pop up a warning window on the control end interface, requiring the user to modify the wave height parameter, or directly inform the user that the wave-making wave train data cannot be sent to the wave-making machine controller; if the parameter meets the safety requirement, the control end will only encapsulate the wave train data into a standard wave-making instruction and transmit it to the wave-making machine controller through a digital signal interface.

[0099] This design intervenes in safety verification at the data input stage, avoiding invalid or dangerous instructions from entering the subsequent execution process, ensuring experimental safety and improving operational efficiency through an instant feedback mechanism. Experimenters do not need to wait for the entire control cycle to complete to know whether the parameters are compliant, significantly optimizing the experimental preparation process.

[0100] In one embodiment, the second running state can include a state when the lifting platform is not running, and the simulation signal can include a first signal and a second signal.

[0101] After the wave-making machine controlled by the wave-making machine controller according to the second running state makes waves in the experimental pool, it can also include:

[0102] The wave generator controller monitors the analog signal in real time during the operation of the wave generator, and adjusts the operation state of the wave generator to a safe slow-down state when the analog signal is the first signal, and adjusts the operation state of the wave generator to an emergency stop state when the analog signal is the second signal.

[0103] In this embodiment, the wave generator controller undertakes the responsibility of continuous safety monitoring during the operation of the wave generator. By receiving the analog signal sent by the lifting platform controller in real time, the system can dynamically perceive the load state change of the lifting platform. When the analog signal is monitored to be the first signal, it indicates that the lifting platform has approached the safe bearing limit but has not constituted a direct danger, at which time the wave generator controller can immediately trigger the safe slow-down mechanism. This mechanism gradually reduces the wave generation frequency and amplitude to smoothly terminate the wave generation process, avoiding equipment impact or abnormal experimental data caused by sudden stop.

[0104] If the analog signal is monitored to be the second signal, it means that the lifting platform is in an overload dangerous state. At this time, the wave generator controller can instantaneously cut off the power output of the wave generator, and simultaneously activate the emergency brake device to ensure that the equipment completely stops running in a very short time. This hierarchical response mechanism not only ensures the safety of the experiment, but also maximizes the reduction of unnecessary downtime on the continuity of the experiment through differentiated processing strategies. The system can also generate detailed event logs at the control end, recording key data such as signal triggering time, load value, and processing measures, providing a basis for subsequent accident analysis and system optimization.

[0105] In one embodiment, the system can further include a wave height sensor arranged above the experimental pool.

[0106] The wave generator controller can further include, after the wave generator generates waves in the experimental pool according to the second operation state:

[0107] The wave generator controller collects wave height information in real time using the wave height sensor during the operation of the wave generator and feeds back to the wave generator control end, and compares the wave height information with the maximum allowed wave height corresponding to the current height. If the wave height information is not greater than the maximum allowed wave height, the wave generator continues to generate waves according to the wave train data. If the wave height information is greater than the maximum allowed wave height, the operation state of the wave generator is adjusted to a safe slow-down state.

[0108] In this embodiment, the safety control system can also deploy high-precision wave height sensors above the experimental pool to build a double safety verification mechanism. The sensor can be a capacitive wave height sensor or other types of sensors. The core function is to use the sensor to measure the water level change in the experimental pool. The specific sensor type can be selected according to the actual situation, and is not limited here.

[0109] During wave generation, the wave generator controller can receive wave height data collected by the wave height sensor in real time, and continuously obtain the maximum allowed wave height value corresponding to the current height of the lifting platform. When the actual wave height is greater than the maximum allowed wave height, the wave generator controller can immediately trigger the safety pause mechanism. This mechanism gradually reduces the wave generation frequency and amplitude to smoothly terminate the wave generation process, avoiding equipment impact or abnormal experimental data caused by sudden stop.

[0110] This dynamic adjustment strategy not only ensures the continuity of experimental data, but also effectively prevents safety risks such as liquid overflow and equipment overload through hierarchical response. The system also has a self-learning function that can automatically optimize the maximum allowed wave height value parameter based on historical data, making the safety control strategy more suitable for actual experimental scenarios.

[0111] Finally, it should be noted that in this document, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0112] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. Each embodiment can be combined as needed, and the same and similar parts refer to each other.

[0113] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety control system for an experimental water tank having a lifting function, characterized by, The system comprises a lifting platform arranged at the bottom of the experimental pool and a wave generator arranged near the experimental pool; The lifting platform is in communication connection with a lifting platform controller, and the wave generator is in communication connection with a wave generator controller, and the lifting platform controller and the wave generator controller are in mutual communication; The lifting platform controller acquires a first running state of the wave generator before executing a lifting instruction, and controls the lifting platform to perform lifting operation according to the first running state; The wave generator controller acquires a second running state of the lifting platform before executing a wave generating instruction, and controls the wave generator to generate waves in the experimental pool according to the second running state; the wave generating instruction comprises wave train data input by a user through a wave generator control end or generated through a non-wave generator control end; The system further comprises a weighing force sensor arranged at the bottom of the lifting platform and point pressure sensors arranged at intervals on the upper surface of the lifting platform; the weighing force sensor and the point pressure sensors are connected with the lifting platform controller; The lifting platform controller is further configured to: acquire pressure information collected by the weighing force sensor and the point pressure sensors in real time, convert the real-time load of the lifting platform into an analog signal after calculating the real-time load according to the pressure information, and then send the analog signal to the wave generator controller; When the wave generating instruction comprises wave train data generated by the user through the non-wave generator control end, the wave generator controller further comprises the following steps before controlling the wave generator to generate waves in the experimental pool according to the second running state: The wave generator controller acquires an analog signal sent by the lifting platform controller during operation of the lifting platform, and a constraint relationship between the height of the lifting platform and the maximum allowable wave height stored in the wave generator control end; After determining the current height of the lifting platform according to the analog signal, the wave generator controller detects the wave train data generated by the user through the non-wave generator control end according to the current height and the constraint relationship between the height of the lifting platform and the maximum allowable wave height, and determines whether to control the wave generator to generate waves in the experimental pool according to the second running state according to the detection result.

2. The safety control system of the experimental water tank with the lifting function according to claim 1, characterized in that, The process that the lifting platform controller acquires a first running state of the wave generator before executing a lifting instruction, and controls the lifting platform to perform lifting operation according to the first running state, comprises: The lifting platform controller acquires the first running state of the wave generator through the wave generator controller before executing the lifting instruction, and sets the lifting platform to a locked state when the first running state is that the wave generator is running; The lifting platform controller releases the locked state of the lifting platform when the first running state is that the wave generator is not running, and controls the lifting platform to perform lifting operation according to the lifting instruction.

3. The safety control system of the experimental water pool having the lifting function according to claim 1, wherein, The process that the wave generator controller acquires a second running state of the lifting platform before executing a wave generating instruction, and controls the wave generator to generate waves in the experimental pool according to the second running state, comprises: The wave generator controller sets the wave generator to a locked state when the second running state indicates that the lifting platform is running. The wave generator controller releases the locked state of the wave generator when the second running state indicates that the lifting platform is not running, and controls the wave generator to generate waves in the experimental pool according to the wave generation instruction.

4. The safety control system of the experimental water pool having the lifting function according to claim 1, wherein, The process of converting the real-time load into an analog signal by the lifting platform controller and sending the analog signal to the wave generator controller includes: The lifting platform controller compares the real-time load with the preset safe warning threshold and the dangerous threshold, respectively. If the real-time load does not reach the safe warning threshold, or exceeds the safe warning threshold but does not reach the dangerous threshold, the lifting platform controller directly converts the real-time load into an analog signal and sends the analog signal to the wave generator controller. If the real-time load reaches the safe warning threshold, the lifting platform controller sends a first signal corresponding to the safe warning threshold to the wave generator controller as an analog signal.

5. The safety control system of the experimental water tank having a lifting function according to claim 1, wherein, If the real-time load reaches the dangerous threshold, the lifting platform controller sends a second signal corresponding to the dangerous threshold to the wave generator controller as an analog signal. When the wave generation instruction includes wave train data input by the user through the wave generator control terminal, the wave generator controller further includes, before executing the wave generation instruction:

6. The safety control system of the experimental water pool having the lifting function according to claim 1, wherein, The wave generator control terminal determines whether the wave train data input by the user through the wave generator control terminal satisfies the constraint relationship between the lifting platform height and the maximum allowable wave height based on the pre-stored constraint relationship, and sends the wave train data input by the user through the wave generator control terminal to the wave generator controller in the form of a wave generation instruction when it is determined that the wave train data input by the user through the wave generator control terminal satisfies the constraint relationship. The second running state includes a state in which the lifting platform is not running, and the analog signal includes a first signal and a second signal. After the wave generator controller controls the wave generator to generate waves in the experimental pool according to the second running state, the wave generator controller further includes:

7. The safety control system of the experimental water pool having the lifting function according to claim 1, wherein, The wave generator controller monitors the analog signal in real time during the operation of the wave generator, and adjusts the running state of the wave generator to a safe slow stop state when the first signal is monitored, and adjusts the running state of the wave generator to an emergency stop state when the second signal is monitored. The system further includes a wave height sensor arranged above the experimental pool. After the wave generator controller controls the wave generator to generate waves in the experimental pool according to the second running state, the wave generator controller further includes: The wave generator controller collects wave height information in real time by using the wave height sensor during operation of the wave generator, feeds back the wave height information to the wave generator control end, compares the wave height information with the allowed maximum wave height corresponding to the current height, if the wave height information is not greater than the allowed maximum wave height, continues to control the wave generator to generate waves according to the wave train data input by the user through the wave generator control end or generated through the non-wave generator control end, and if the wave height information is greater than the allowed maximum wave height, adjusts the operation state of the wave generator to a safe slow-down state.

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