Method and system for integrating equipment based on cavitation and cavitation effect acquisition and analysis

Abstract

The application discloses a device integration method and system based on cavitation and cavitation effect collection and analysis, and relates to the technical field of device integration. The method comprises the following steps: acquiring IP addresses of devices, communication parameters corresponding to the devices and collection computers, and device parameters of the devices; configuring the IP addresses, the communication parameters and the device parameters on the collection computers by using a local area network management tool; acquiring software development packages corresponding to the devices, obtaining starting programs corresponding to the software development packages, and integrating the starting programs; and setting a device synchronous starting script to enable the devices to start collection simultaneously. The application is used to solve the problems of long time consumption and low efficiency of cavitation effect test and analysis caused by the mutual independence of the devices in the prior art, realizes device integration and synchronous collection, improves the efficiency and effect of cavitation measurement and cavitation effect analysis, and obtains data more beneficial to cavitation and cavitation effect research.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of equipment integration, and in particular to an equipment integration method and system based on cavitation and cavitation effect collection and analysis. BACKGROUND

[0002] With the increase of power and speed of modern warships, the requirements for reducing noise, improving concealment and comfort of the warships are more stringent, so that the requirements for reducing the volume of propeller cavitation and appendage cavitation and improving the starting speed of the warship cavitation in the design process of the warship enter a new stage. The problem of cavitation noise surge caused by high speed and low critical speed of the warship gradually exposes, which has a significant impact on the sonar anti-submarine of the formation and the concealment of the warship itself.

[0003] The research on the warship cavitation is generally divided into theoretical analysis, numerical calculation, model test and real ship test. Due to the very complex nature of cavitation, although the current theoretical analysis and numerical calculation have played a considerable role in the design optimization stage, the final design optimization verification and real ship prediction still need to be carried out through model test. However, the Reynolds number of the model test is 10 6 orders of magnitude, and the Reynolds number of the real ship is 10 9 orders of magnitude. There is a so-called "scale effect" between the model test results and the real results of the real ship. Only by analyzing and studying a large amount of real ship data and model test results can the prediction method of the model test results be continuously corrected to improve the correctness of the model test prediction of the real ship cavitation performance.

[0004] In the real ship test, each device is independent and unrelated to each other, and each device corresponds to one or more collection computers for collecting the required data. Since different collection computers control different devices to collect different types of data, and the devices cannot be synchronized, the collected data causes difficulties in cavitation effect analysis, resulting in long time consumption, low efficiency and poor effect of cavitation effect analysis. SUMMARY

[0005] In view of the above problems and technical needs, the present application provides an equipment integration method and system based on cavitation and cavitation effect collection and analysis, which solves the problems of long time consumption, low efficiency and poor effect of cavitation effect analysis due to the independence of each device in the prior art, and realizes equipment integration to improve the efficiency and effect of cavitation effect analysis.

[0006] The embodiment of the present application provides an equipment integration method based on cavitation and cavitation effect collection and analysis, which is applied to a collection computer, and the method comprises the following steps:

[0007] obtaining IP addresses of each device, communication parameters corresponding to each device and the acquisition computer, and device parameters of each device, wherein the devices include: a high-frequency data collector for collecting ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation; a high-speed camera for photographing a propeller; a network camera for photographing a support and a deadwood appendage; and a water-tight camera for photographing a bulb bow;

[0008] configuring the IP addresses, the communication parameters and the device parameters on the acquisition computer by using a local area network management tool;

[0009] obtaining software development kits corresponding to each device, and obtaining starting programs corresponding to each software development kit, wherein each starting program is used for instructing the high-frequency data collector to collect the ship operation parameters and the vibration signals, the noise signals and the pulsating pressure signals generated by cavitation, the high-speed camera to photograph cavitation images of the propeller, the network camera to photograph cavitation images of the support and the deadwood appendage, and the water-tight camera to photograph cavitation images of the bulb bow;

[0010] setting a device synchronous starting script to enable each device to start collecting at the same time, wherein the synchronous starting script is used for instructing the starting programs of each software development kit to be triggered at the same time.

[0011] According to the device integration method for collecting and analyzing cavitation and cavitation effects provided in the embodiments of the present application, the method further comprises:

[0012] setting an image uploading script and configuring an image uploading duration, wherein the image uploading script is used for instructing the high-speed camera to upload the photographed cavitation images to the acquisition computer at the image uploading duration as a time interval, and to clear the cavitation images in the local memory after the uploading.

[0013] According to the device integration method for collecting and analyzing cavitation and cavitation effects provided in the embodiments of the present application, the method further comprises:

[0014] setting a first data analysis script;

[0015] The first data analysis script comprises a first data analysis method.

[0016] The first data analysis script is used for instructing the real-time frequency domain data to be obtained by analyzing the ship operation parameters and the vibration signals, the noise signals and the pulsating pressure signals generated by cavitation based on the first data analysis method; and the first analysis result to be obtained by analyzing the real-time frequency domain data and the synchronously obtained cavitation images of the propeller.

[0017] The first analysis result represents the cavitation area change information and the cavitation volume change information of the propeller under the working condition corresponding to the ship operation parameter.

[0018] According to the equipment integration method for collecting and analyzing cavitation and cavitation effect provided in the embodiments of the present application, the method further comprises:

[0019] setting a second data analysis script;

[0020] The second data analysis script comprises a second data analysis method.

[0021] The second analysis script is used to instruct the propeller cavitation image, the ship body support and deadwood appendage cavitation image, and the bulb bow cavitation image obtained synchronously to be analyzed based on the second data analysis method to obtain a second analysis result.

[0022] The second analysis result comprises the cavitation area change information and the cavitation volume change information of the ship.

[0023] According to the equipment integration method for collecting and analyzing cavitation and cavitation effect provided in the embodiments of the present application, the method further comprises:

[0024] setting a third data analysis script;

[0025] The third data analysis script comprises a third data analysis method.

[0026] The third data analysis script is used to instruct the ship operation parameter and the vibration signal, the noise signal, and the pulsating pressure signal generated by cavitation, the ship body support and deadwood appendage cavitation image, and the bulb bow cavitation image obtained synchronously to be analyzed based on the third data analysis method to obtain a third analysis result.

[0027] The third analysis result comprises the cavitation area change information and the cavitation volume change information of the ship body and the bulb bow under the working condition corresponding to the ship operation parameter.

[0028] According to the equipment integration method for collecting and analyzing cavitation and cavitation effect provided in the embodiments of the present application, the method further comprises:

[0029] setting a fourth data analysis script;

[0030] The fourth data analysis script is used to instruct the first analysis result, the second analysis result, and the third analysis result to be summarized to obtain a test analysis result.

[0031] According to the device integration method based on cavitation and cavitation effect acquisition and analysis provided in the embodiment of the application, the device parameters are configured on the acquisition computer by using a local area network management tool, including:

[0032] The first device parameter of the high-frequency data collector is configured, wherein the first device parameter includes a channel name, a channel sampling rate and channel filtering, and one channel includes a plurality of sensors;

[0033] The second device parameter of the high-speed camera is configured, wherein the second device parameter includes a sampling frequency, a sampling interval and an image pixel.

[0034] The embodiment of the application further provides a device integration system based on cavitation and cavitation effect acquisition and analysis, which includes an acquisition computer, a high-frequency data collector, a high-speed camera, a network camera and a water-tight camera.

[0035] The high-frequency data collector, the high-speed camera, the network camera and the water-tight camera are respectively connected in communication with the acquisition computer.

[0036] The high-frequency data collector is used to collect ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, and send the collected ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation to the acquisition computer.

[0037] The high-speed camera is used to shoot a propeller, obtain a propeller cavitation image, and send the propeller cavitation image to the acquisition computer.

[0038] The network camera is used to shoot a support and a wood appendage cavitation, obtain a support and a wood appendage cavitation image, and send the support and the wood appendage cavitation to the acquisition computer.

[0039] The water-tight camera is used to shoot a bulb bow, obtain a bulb bow cavitation image, and send the bulb bow cavitation image to the acquisition computer.

[0040] The acquisition computer is used to obtain and configure the IP address of each device, the communication parameter corresponding to each device and the device parameter of each device, obtain the software development package corresponding to each device, obtain the starting program corresponding to each software development package, set a device synchronous starting script, and enable each device to start acquisition at the same time.

[0041] The starting programs are respectively used for instructing the high-frequency data collector to collect the ship operation parameters and the vibration signal, the noise signal and the pulsating pressure signal generated by the cavitation, the high-speed camera to shoot the propeller cavitation image, the network camera to shoot the hull support and the wood appendage cavitation image, and the water-tight camera to shoot the bulb bow cavitation image.

[0042] According to the equipment integration system for collecting and analyzing cavitation and cavitation effect provided in the embodiment of the application, the collecting computer is further used for setting a first data analysis script, a second data analysis script, a third data analysis script and a fourth analysis script.

[0043] The first data analysis script includes a first data analysis method, and is used for instructing to analyze the ship operation parameters and the vibration signal, the noise signal and the pulsating pressure signal generated by the cavitation to obtain real-time frequency domain data based on the first data analysis method, and to analyze the real-time data and the synchronously obtained propeller cavitation image to obtain a first analysis result.

[0044] The second data analysis script includes a second data analysis method, and is used for instructing to analyze the synchronously obtained propeller cavitation image, the hull support and the wood appendage cavitation image and the bulb bow cavitation image based on the second data analysis method to obtain a second analysis result, wherein the second analysis result includes cavitation area change information and cavitation volume change information.

[0045] The third data analysis script includes a third data analysis method, and is used for instructing to analyze the synchronously obtained ship operation parameters and the vibration signal, the noise signal and the pulsating pressure signal generated by the cavitation, the hull support and the wood appendage cavitation image and the bulb bow cavitation image based on the third data analysis method to obtain a third analysis result.

[0046] The fourth data analysis script is used for instructing to summarize the first analysis result, the second analysis result and the third analysis result to obtain a test analysis result.

[0047] According to the equipment integration system for collecting and analyzing cavitation and cavitation effect provided in the embodiment of the application, the high-frequency data collector includes a vibration sensor, a hydrophone, an amplifier, a rotating speed collector, a torque collector and a phase collector.

[0048] The device integration method and system based on cavitation and cavitation effect collection and analysis provided by the embodiment of the application, by acquiring the IP address of each device, the communication parameters corresponding to each device and the collection computer, and the device parameters of each device, wherein the device includes: a high-frequency data collector for collecting ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, a high-speed camera for shooting a propeller, a network camera for shooting a ship body, and a watertight camera for shooting a bulb bow; the IP address, the communication parameters and the device parameters are configured on the collection computer by using a local area network management tool, so as to realize the interconnection of each device and the collection computer, and since each device is independent of each other, multiple collection computers are needed; the software development package corresponding to each device is acquired, and the start program corresponding to each software development package is obtained, wherein each start program is respectively used for instructing the high-frequency data collector to collect ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, the high-speed camera to shoot a propeller cavitation image, the network camera to shoot a ship body support and a deadwood attachment cavitation image, and the watertight camera to shoot a bulb bow cavitation image; a device synchronous start script is set, so that each device starts collection at the same time, and it can be seen that the start programs of each software development package are triggered at the same time by executing the synchronous start script, so as to start each device at the same time, realize the synchronization of data collection of each device, and further realize cavitation effect analysis based on the data collected by each device by using one collection computer, so as to solve the problems of long time consumption and low efficiency of cavitation effect analysis, realize device integration, and improve the efficiency and effect of cavitation effect analysis. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0050] Figure 1 is one of the flowcharts of the device integration method based on cavitation and cavitation effect collection and analysis provided by the embodiment of the present application;

[0051] Figure 2 is the second flowchart of the device integration method based on cavitation and cavitation effect collection and analysis provided by the embodiment of the present application;

[0052] Figure 3 is the structural schematic diagram of the device integration system based on cavitation and cavitation effect collection and analysis provided by the embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0054] The embodiments of the present application provide a device integration method based on cavitation and cavitation effect acquisition and analysis, which is applied to a collection computer. Figure 1 As shown in the figure, the method comprises the following steps.

[0055] In step 101, the IP addresses of the devices, the communication parameters corresponding to the collection computer, and the device parameters of the devices are obtained.

[0056] The devices include a high-frequency data collector for collecting ship operation parameters and vibration signals, noise signals, and pulsating pressure signals generated by cavitation, a high-speed camera for shooting a propeller, a network camera for shooting a ship body, and a watertight camera for shooting a bulb bow.

[0057] In step 102, the IP addresses, the communication parameters, and the device parameters are configured on the collection computer by using a local area network management tool.

[0058] In step 103, the software development kits corresponding to the devices are obtained, and the start programs corresponding to the software development kits are obtained.

[0059] The start programs are respectively used to instruct the high-frequency data collector to collect ship operation parameters and vibration signals, noise signals, and pulsating pressure signals generated by cavitation, the high-speed camera to shoot cavitation images of the propeller, the network camera to shoot cavitation images of a support and a deadwood appendage, and the watertight camera to shoot cavitation images of the bulb bow.

[0060] In step 104, a device synchronous start script is set to enable the devices to start collection simultaneously.

[0061] The synchronous start script is used to instruct the start programs of the software development kits to be triggered simultaneously.

[0062] The ship operation parameters include a rotating speed, a torque, a phase signal, and the like.

[0063] The communication parameters are specific attributes for information transmission between the devices and the collection computer, and include description information of data uploaded by the devices and parameters for transmission of control information of the collection computer, such as a baud rate, data bits, stop bits, an interface type, a port number, a communication protocol, and the like.

[0064] The high-frequency data collector comprises a collector for collecting data with a frequency greater than a preset frequency, which can be set by the user according to actual needs.

[0065] The high-speed camera converts a target into an image signal through digital image taking, and transmits the image signal to a dedicated image processing system. Compared with a common camera, the high-speed camera has high image stability, high transmission capacity and high anti-interference capability.

[0066] The network camera obtains the air bubble image of the attached body by taking the attached body in real time.

[0067] The water-tight camera comprises a camera whose structure and components ensure water tightness under the action of a certain water pressure after being immersed in water.

[0068] The equipment integration method and system based on air bubble and air bubble effect collection and analysis provided by the embodiment of the application, by acquiring the IP address of each device, the communication parameters corresponding to each device and the device parameters of each device, wherein the device comprises a high-frequency data collector for collecting ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by air bubbles, a high-speed camera for taking a propeller, a network camera for taking air bubbles of a ship support and a deadwood attached body, and a water-tight camera for taking a bulb bow; the IP address, the communication parameters and the device parameters are configured on the collection computer by using a local area network management tool, so as to realize the interconnection of each device and the collection computer, and since each device is independent of each other, multiple collection computers are needed; the software development package corresponding to each device is acquired, and the start program corresponding to each software development package is obtained, wherein each start program is used for instructing the high-frequency data collector to collect ship operation parameters and vibration signals, noise signals and pulsating pressure signals generated by air bubbles, the high-speed camera to take a propeller air bubble image, the network camera to take a support and a deadwood attached body air bubble image, and the water-tight camera to take a bulb bow air bubble image; the device synchronous start script is set, so that each device starts collection at the same time. It can be seen that the start programs of the software development packages are triggered at the same time by executing the synchronous start script, so as to start each device at the same time, realize the synchronization of data collection of each device, and then, based on one collection computer, the air bubble effect is analyzed by using the data collected by each device, the problem of long time consumption and low efficiency of air bubble effect analysis is solved, the equipment integration is realized, and the efficiency and effect of air bubble effect analysis are improved.

[0069] In one specific embodiment, the specific implementation of configuring the device parameters on the collection computer by using the local area network management tool comprises:

[0070] The first device parameters of the high-frequency data collector are configured; and the second device parameters of the high-speed camera are configured.

[0071] The first device parameters include a channel name, a channel sampling rate and a channel filter, wherein one channel includes a plurality of sensors.

[0072] The second device parameters include a sampling frequency, a sampling interval and an image pixel.

[0073] Specifically, only the configuration of opening and closing is required for the network camera and the water-proof camera.

[0074] In one specific embodiment, the method further includes setting a first data analysis script.

[0075] The first data analysis script includes a first data analysis method.

[0076] The first data analysis script is used to instruct to analyze the real-time frequency domain data based on the first data analysis method, the vibration signal, the noise signal and the pulsating pressure signal generated by the cavitation; and analyze the real-time data and the synchronously obtained propeller cavitation image to obtain a first analysis result.

[0077] The first analysis result represents the cavitation area change information and the cavitation volume change information of the propeller under the working condition corresponding to the ship operation parameter.

[0078] Specifically, the vibration signal, the noise signal and the pulsating pressure signal generated by the cavitation are processed by using fast Fourier transform to obtain the real-time frequency domain data. In the frequency domain, the signal is represented as the superposition of different frequency components, and the amplitude and the phase of each frequency component can describe the frequency characteristics of the signal.

[0079] The edge features of the cavitation image are extracted by using image enhancement, denoising and feature extraction techniques, and the area and the volume of the cavitation image are calculated, and the change rates of the cavitation area and the cavitation volume are analyzed to obtain the first analysis result.

[0080] In one specific embodiment, the method further includes setting a second data analysis script.

[0081] The second data analysis script includes a second data analysis method.

[0082] The second analysis script is used to instruct to analyze the synchronously obtained propeller cavitation image, the bracket and the cavitation image of the deadwood appendage and the bulb bow cavitation image based on the second data analysis method to obtain a second analysis result.

[0083] The second analysis result includes the cavitation area change information and the cavitation volume change information corresponding to the ship operation parameter.

[0084] Specifically, the propeller cavity image, the hull support and the wood appendage cavity image, and the bulbous bow cavity image are subjected to frequency domain analysis respectively. For example, the propeller cavity image, the hull support and the wood appendage cavity image, and the bulbous bow cavity image are subjected to image enhancement, denoising, feature extraction and other technical means, the edge features of the cavities are extracted for area and volume calculation, and the change rates of the cavity area and volume are analyzed.

[0085] The features of the propeller cavity image, the features of the hull support and the wood appendage cavity image, and the features of the bulbous bow cavity image are fused to obtain a second analysis result.

[0086] In one specific embodiment, the method further comprises: setting a third data analysis script.

[0087] The third data analysis script comprises a third data analysis method.

[0088] The third data analysis script is used to instruct the analysis of the ship operation parameters, the vibration signals, the noise signals and the pulsating pressure signals generated by the cavitation, the hull support and the wood appendage cavity image, and the bulbous bow cavity image based on the third data analysis method to obtain a third analysis result.

[0089] The third analysis result comprises the cavity area change information and the cavity volume change information of the hull support and the wood appendage cavity and the bulbous bow under the working condition corresponding to the ship operation parameters.

[0090] Specifically, the ship operation parameters are processed by averaging to obtain the ship operation working condition.

[0091] Specifically, the hull support and the wood appendage cavity image, and the bulbous bow cavity image are subjected to image enhancement, denoising, feature extraction and other technical means, the edge features of the cavities are extracted for area and volume calculation, and the change rates of the cavity area and volume are analyzed.

[0092] The features of the hull support and the wood appendage cavity image and the features of the bulbous bow cavity image are fused to obtain a third analysis result.

[0093] In one specific embodiment, the method further comprises: setting a fourth data analysis script.

[0094] The fourth data analysis script is used to instruct the aggregation of the first analysis result, the second analysis result and the third analysis result to obtain a test analysis result.

[0095] In one specific embodiment, the method further comprises: setting an image uploading script and configuring an image uploading duration.

[0096] The image uploading script is used to instruct the high-speed camera to upload the photographed cavity images to the acquisition computer with the image uploading time length as the time interval, and to clear the cavity images in the local memory after uploading.

[0097] In the following, the application is described in detail. Figure 2 The application is described in detail as follows:

[0098] In step 201, the IP addresses of the devices are obtained, the communication parameters are set based on the IP addresses, the local area network addresses are allocated to the devices, and the device parameters of the devices are configured.

[0099] In step 202, the software development kits of the devices are obtained, and the synchronous acquisition and data storage functions are set.

[0100] In step 203, the ship operation parameters acquired by the high-frequency data acquisition device, the propeller cavity images photographed by the high-speed camera, the ship body support and deadwood cavity images photographed by the network camera, and the bulb bow cavity images photographed by the water-tight camera are obtained, stored and displayed.

[0101] In addition, the vibration signals, noise signals and pulsating pressure signals generated by the cavities need to be obtained.

[0102] In step 204, the first analysis result is obtained by analyzing the ship operation parameters and the propeller cavity images, the second analysis result is obtained by analyzing the propeller cavity images, the ship body support and deadwood cavity images and the bulb bow cavity images, and the third analysis result is obtained by analyzing the ship operation parameters, the ship body support and deadwood cavity images and the bulb bow cavity images.

[0103] In addition, the vibration signals, noise signals and pulsating pressure signals generated by the cavities need to be analyzed.

[0104] In step 205, the test analysis result is obtained by summarizing the first analysis result, the second analysis result and the third analysis result.

[0105] In addition, the configuration of the devices can be realized by creating a class. For example, the class name is defined as LanXiHelper. The data exchange and communication between the acquisition computer and the devices are realized through the LanXiHelper class. The LanXiHelper class includes: IP, which is used to manage the IP addresses of different devices, is used to load the devices, and is used to connect the devices by setting the same IP addresses as the devices. The LanXiHelper class also includes: communication parameters, which are used for communication between different devices. The LanXiHelper class also includes device parameters, which are used to configure the device parameters of the devices.

[0106] This application integrates and synchronizes various devices and controls the corresponding acquisition software to ensure simultaneous control of all devices. This allows for synchronized data acquisition using a single computer. Simultaneous data acquisition is achieved by setting synchronized start and end switches for different types of equipment. This allows for the simultaneous sampling of ship operating parameters, vibration signals, noise signals, and pulsating pressure signals generated by cavitation, propeller cavitation images, hull bracket and wooden appendage cavitation images, and bulbous bow cavitation images, providing an effective data foundation for studying cavitation effects.

[0107] The embodiment of the present application also provides an integrated device system based on cavitation and cavitation effect collection and analysis, such as Figure 3 As shown, the system includes: an acquisition computer 301, a high-frequency data collector 302, a high-speed camera 303, a network camera 304 and a watertight camera 305, and the high-frequency data collector 302, the high-speed camera 303, the network camera 304 and the watertight camera 305 are respectively connected to the acquisition computer 301 for communication.

[0108] The high-frequency data collector 302 is used to collect ship operating parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, and send the collected ship operating parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation to the acquisition computer 301.

[0109] The high-speed camera 303 is used to photograph the propeller, obtain a propeller cavitation image, and send the propeller cavitation image to the acquisition computer 301 .

[0110] The network camera 304 is used to take images of the stent and the cavitation bubbles of the woody appendages, obtain images of the stent and the cavitation bubbles of the woody appendages, and send the images of the stent and the cavitation bubbles of the woody appendages to the acquisition computer 301.

[0111] The watertight camera 305 is used to photograph the bulbous bow, obtain the bulbous bow cavitation image, and send the bulbous bow cavitation image to the acquisition computer 301.

[0112] The acquisition computer 301 is used to obtain and configure the IP address of each device, the communication parameters corresponding to each device and the acquisition computer, and the device parameters of each device; obtain the software development kit corresponding to each device and obtain the startup program corresponding to each software development kit; set the device synchronization startup script so that each device starts acquisition at the same time.

[0113] Among them, each startup program is used to instruct the high-frequency data collector to collect ship operating parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, the high-speed camera to capture propeller cavitation images, the network camera to capture cavitation images of the hull bracket and wooden appendages, and the watertight camera to capture bulbous bow cavitation images; the synchronous startup script is used to instruct the startup programs of each software development package to be triggered simultaneously.

[0114] In a specific embodiment, the acquisition computer 301 is further used to set a first data analysis script, a second data analysis script, a third data analysis script and a fourth analysis script.

[0115] Among them, the first data analysis script includes: a first data analysis method, the first data analysis script is used to indicate that the ship operating parameters and the vibration signals, noise signals and pulsating pressure signals generated by cavitation are analyzed based on the first data analysis method to obtain real-time frequency domain data; and the real-time frequency domain data and the synchronously obtained propeller cavitation image are analyzed to obtain the first analysis result.

[0116] Among them, the second data analysis script includes: a second data analysis method, the second analysis script is used to indicate the propeller cavitation image, hull bracket and wooden appendage cavitation image and bulbous bow cavitation image obtained synchronously based on the second data analysis method to obtain a second analysis result, wherein the second analysis result includes: cavitation area change information and cavitation volume change information.

[0117] Among them, the third data analysis script includes: a third data analysis method, and the third data analysis script is used to indicate the ship operation parameters and the vibration signals, noise signals and pulsating pressure signals generated by cavitation, the hull support and wooden appendage cavitation images and the bulbous bow cavitation images obtained synchronously based on the third data analysis method to obtain the third analysis results.

[0118] Among them, the fourth data analysis script is used to instruct the aggregation of the first analysis result, the second analysis result and the third analysis result to obtain the test analysis result.

[0119] In a specific embodiment, the acquisition computer 301 is further used to set up an image upload script and configure the image upload duration.

[0120] Among them, the image upload script is used to instruct the high-speed camera to upload the captured cavitation images to the acquisition computer at an interval of the image upload time, and clear the cavitation images in the local memory after uploading.

[0121] In a specific embodiment, the high-frequency data collector 302 includes: a vibration sensor, a hydrophone, an amplifier, a speed collector, a torque collector, and a phase collector.

[0122] Specifically, the high-speed rotation of the propeller and the cavitation generated by the blades of the equipment integration system need to be recorded with a high-speed camera (the acquisition frame rate is not less than 2000 frames / second), and the cavitation in the hull is recorded using an ordinary network camera (sampling frame rate 30 frames / second to 50 frames / second). The cavitation effect and motion parameters are digital signals collected by sensors and collectors.

[0123] The measurement signals of the device integration system primarily consist of two components: digital signals and image signals. Digital sensor signals, such as vibration, noise, pulsating pressure, speed, phase, and torque, are collected by a high-frequency data collector 302. The time-domain signals are then transferred to the acquisition computer 301 via a switch. Images are collected by different types of cameras, and the image signals are then transferred to the acquisition computer 301 via a switch.

[0124] Specifically, the bulbous bow cavitation is observed by a watertight camera installed outside the hull at the bulbous bow, the hull cavitation is observed by a network camera installed inside the hull at the bracket and the wooden part (through the cavitation observation window or endoscope), and the propeller cavitation is observed by a high-speed camera installed inside the hull above the propeller (through the cavitation observation window); vibration and noise are measured by the vibration sensor and hydrophone installed at the measuring part connected to the high-frequency data collector 301, and the pulsating pressure sensor signal is connected to the high-frequency data collector 301 after passing through the DH3840H amplifier to measure the pulsating pressure signal; at the same time, the speed, phase and torque signals on the propeller shaft are collected.

[0125] The device integration system based on cavitation and cavitation effect collection and analysis provided in the embodiment of the present application realizes simultaneous startup of each device and synchronization of data collection of each device through the acquisition computer 301, which is interconnected with the high-frequency data collector 302, the high-speed camera 303, the network camera 304 and the watertight camera 305, and controls the high-frequency data collector 302, the high-speed camera 303, the network camera 304 and the watertight camera 305, so as to realize cavitation effect analysis based on the data synchronously collected by each device using a single acquisition computer, thereby solving the problems of long time consumption, low efficiency and poor effect of cavitation effect analysis, realizing device integration, and improving the efficiency and effect of cavitation effect analysis.

[0126] Finally, it should be noted that the above description is merely a preferred embodiment of the present application and the present application is not limited to the above embodiments. It is understood that other improvements and variations directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present application should be considered to be included within the scope of protection of the present application.

Claims

1. A device integration method based on cavitation and cavitation effect collection and analysis, characterized in that: Applied to an acquisition computer, the method comprises: Obtaining the IP address of each device, the communication parameters corresponding to each device and the acquisition computer, and the device parameters of each device, wherein the devices include: a high-frequency data collector for collecting ship operating parameters and vibration signals, noise signals, and pulsating pressure signals generated by cavitation, a high-speed camera for photographing the propeller, a network camera for photographing the bracket and wooden attachments, and a watertight camera for photographing the bulbous bow; Configuring the IP address, the communication parameters, and the device parameters on the acquisition computer using a local area network management tool; Obtaining a software development kit corresponding to each device and obtaining a startup program corresponding to each software development kit, wherein each startup program is used to instruct the high-frequency data collector to collect the ship's operating parameters and the vibration signal, noise signal, and pulsating pressure signal generated by the cavitation, the high-speed camera to capture an image of the propeller cavitation, the network camera to capture an image of the hull bracket and the wooden appendage cavitation, and the watertight camera to capture an image of the bulbous bow cavitation; Set up a device synchronization startup script so that each device starts acquisition at the same time, wherein the synchronization startup script is used to instruct the startup program of each software development kit to trigger at the same time; The method further comprises: Setting up a first data analysis script; Wherein, the first data analysis script includes: a first data analysis method; The first data analysis script is used to instruct to analyze the ship operating parameters and the vibration signal, noise signal, and pulsating pressure signal generated by cavitation based on the first data analysis method to obtain real-time frequency domain data; and to analyze the real-time frequency domain data and the synchronously obtained propeller cavitation image to obtain a first analysis result; The first analysis result represents the cavitation area change information and cavitation volume change information at the propeller under the working conditions corresponding to the ship operation parameters; Setting up a second data analysis script; Wherein, the second data analysis script includes: a second data analysis method; The second data analysis script is used to instruct to analyze the propeller cavitation image, the hull bracket and wooden appendage cavitation image, and the bulbous bow cavitation image obtained synchronously based on the second data analysis method to obtain a second analysis result; Wherein, the second analysis result includes: cavitation area change information and cavitation volume change information; Set up the third data analysis script; Wherein, the third data analysis script includes: a third data analysis method; The third data analysis script is used to instruct the third data analysis method to analyze the synchronously obtained ship operation parameters and the vibration signal, noise signal and pulsating pressure signal generated by the cavitation, the cavitation image of the hull bracket and the wooden appendage, and the cavitation image of the bulbous bow to obtain a third analysis result; The third analysis result includes: information on changes in cavitation area and volume of the hull and bulbous bow under the working conditions corresponding to the ship operating parameters; Set up the fourth data analysis script; The fourth data analysis script is used to instruct the aggregation of the first analysis result, the second analysis result and the third analysis result to obtain the test analysis result.

2. The device integration method based on cavitation and cavitation effect collection and analysis according to claim 1 is characterized in that: The method further comprises: Set up an image upload script and configure the image upload duration, wherein the image upload script is used to instruct the high-speed camera to upload the captured cavitation image to the acquisition computer at time intervals of the image upload duration, and clear the cavitation image in the local memory after uploading.

3. The device integration method based on cavitation and cavitation effect collection and analysis according to claim 1 is characterized in that: Utilize the local area network management tool to configure the device parameters on the acquisition computer, including: Configuring first device parameters of the high-frequency data collector, wherein the first device parameters include: channel name, channel sampling rate, and channel filter, wherein one channel includes multiple sensors; The second device parameters of the high-speed camera are configured, wherein the second device parameters include: sampling frequency, sampling interval, and image pixels.

4. An integrated equipment system based on cavitation and cavitation effect collection and analysis, characterized in that: The system includes: an acquisition computer, a high-frequency data collector, a high-speed camera, a network camera and a watertight camera; The high-frequency data collector, the high-speed camera, the network camera and the watertight camera are respectively connected to the acquisition computer for communication; The high-frequency data collector is used to collect ship operating parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation, and send the collected ship operating parameters and vibration signals, noise signals and pulsating pressure signals generated by cavitation to the collection computer; The high-speed camera is used to photograph the propeller, obtain a propeller cavitation image, and send the propeller cavitation image to the acquisition computer; The network camera is used to take images of the stent and the cavitational bubble of the woody appendage, obtain images of the stent and the cavitational bubble of the woody appendage, and send the images of the stent and the cavitational bubble of the woody appendage to the acquisition computer; The watertight camera is used to photograph the bulbous bow, obtain a bulbous bow cavitation image, and send the bulbous bow cavitation image to the acquisition computer; The acquisition computer is used to obtain and configure the IP address of each device, the communication parameters corresponding to each device and the acquisition computer, and the device parameters of each device; obtain the software development kit corresponding to each device, and obtain the startup program corresponding to each software development kit; set the device synchronization startup script so that each device starts the acquisition at the same time; Each of the startup programs is used to instruct the high-frequency data collector to collect the ship's operating parameters and the vibration signal, noise signal, and pulsating pressure signal generated by cavitation; the high-speed camera to capture propeller cavitation images; the network camera to capture bracket and wooden appendage cavitation images; and the watertight camera to capture bulbous bow cavitation images; and the synchronous startup script is used to instruct the startup programs of each software development kit to trigger simultaneously. The acquisition computer is further used to set a first data analysis script, a second data analysis script, a third data analysis script and a fourth data analysis script; The first data analysis script includes: a first data analysis method, the first data analysis script being configured to instruct to analyze the ship operation parameters and the vibration signal, noise signal, and pulsating pressure signal generated by cavitation based on the first data analysis method to obtain real-time frequency domain data; and to analyze the real-time frequency domain data and the synchronously obtained propeller cavitation image to obtain a first analysis result; The second data analysis script includes: a second data analysis method, the second data analysis script is used to instruct to analyze the propeller cavitation image, the bracket and wooden appendage cavitation image, and the bulbous bow cavitation image obtained synchronously based on the second data analysis method to obtain a second analysis result, wherein the second analysis result includes: cavitation area change information and cavitation volume change information; The third data analysis script includes: a third data analysis method, the third data analysis script is used to instruct to analyze the synchronously obtained ship operation parameters and the vibration signal, noise signal and pulsating pressure signal generated by cavitation, the hull support and wooden appendage cavitation image and the bulbous bow cavitation image based on the third data analysis method to obtain a third analysis result; The fourth data analysis script is used to instruct the aggregation of the first analysis result, the second analysis result and the third analysis result to obtain the test analysis result.

5. The device integration system based on cavitation and cavitation effect collection and analysis according to claim 4 is characterized in that: The high-frequency data collector includes: a vibration sensor, a hydrophone, an amplifier, a rotation speed collector, a torque collector and a phase collector.

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