An integrated measurement and control system based on towing tank test

By designing an integrated measurement and control system based on drag pool tests, the problems of low automation, serious information silos and difficult data management in the existing technology are solved, and the Internet of Things and data acquisition and analysis of the test equipment are integrated, and the level of automation processing and work efficiency are improved.

CN118192357BActive Publication Date: 2025-04-15CHINA SHIP SCIENTIFIC RESEARCH CENTER
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Patent Information

Application Number
CN202410387255.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-04-15
Estimated Expiration
2044-04-01

AI Technical Summary

Technical Problem

In the existing drag pool test, the subsequent processing and archiving of test data relies on manpower, the degree of automation is not high, the equipment is independently dispersed to form an "information island", data management and knowledge mining are difficult, the basic network is incomplete, and data and video transmission are limited.

Method used

An integrated measurement and control system based on tow pool tests was designed, and the five-layer construction architecture of intelligent manufacturing was adopted, including a visual centralized control center, test data management subsystem, on-site measurement and control subsystem, trailer management subsystem and field layer equipment, real-time monitoring and data collection of the test process, and improve automation level and data management capabilities through the Internet of Things and smart networks.

Benefits of technology

The integration of Internet of Things and test data acquisition and analysis of drag pool test equipment has been realized, which has improved the level of automation processing and work efficiency, reduced manpower dependence, eliminated information silos, and improved data management and knowledge mining capabilities.

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Abstract

The invention discloses an integrated measurement and control system based on a towing tank test, which relates to the field of intelligent detection of ship performance. The system comprises: a visualized centralized control center at the enterprise level, a test data management subsystem at the management level, a field measurement and control subsystem at the operation level, a trailer management subsystem at the control level, and various equipment required for the test at the field level, including trailers, ship models, sensing modules, etc. The system aims to interconnect test equipment, significantly improve the automation level, achieve zero information islands, integrate test control and collection, and achieve remote centralized control of the test process. The system uses special test facilities of the trailer system combined with a software and hardware system of a smart network construction layout to complete the overall functional architecture, realize the equipment Internet of Things for the tank test, and integrate test data collection and analysis. The system can realize automated processing of the entire tank test process, and also improves the work efficiency of the towing tank test process.
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Description

Technical Field

[0001] The invention relates to the field of intelligent detection of ship performance, and in particular to an integrated measurement and control system based on towing tank test. Background Art

[0002] At present, towing tank tests are still mostly carried out using traditional trailers and information collection systems. The subsequent processing and archiving of test data relies heavily on manpower, and the degree of automation is not high. In addition, the test equipment is independent and scattered, forming "information islands", and the degree of intercommunication and system integration is not high. The data is also relatively discrete and cannot be uniformly stored according to standard specifications, which is not conducive to data management and knowledge mining. In addition, the basic network is imperfect, and data and video transmission is limited. Summary of the invention

[0003] In view of the above problems and technical requirements, the inventors have proposed an integrated measurement and control system based on towing tank test. The technical solution of the present invention is as follows:

[0004] An integrated measurement and control system based on towing tank test, which adopts the five-layer construction architecture of intelligent manufacturing, including:

[0005] The visualized centralized control center at the enterprise level accesses the test data management subsystem and the on-site measurement and control subsystem to display the real-time environment and test data, test analysis data and on-site video of the towing tank test process, meeting the visualization and remote collaboration requirements of the test work;

[0006] The test data management subsystem located at the management level interacts with the on-site measurement and control subsystem to issue test tasks to the on-site measurement and control subsystem, and classifies, organizes, analyzes and stores the test project information and the real-time environment and test data collected during the towing tank test process;

[0007] The field measurement and control subsystem located at the operation layer serves as a medium for data exchange between the test data management subsystem and the trailer management subsystem. It is used to logically arrange the actions of various equipment at the field layer during the test according to the test tasks, so as to match and connect the trailer operation, real-time environment and test data collection, and monitor the safety status.

[0008] The trailer management subsystem located in the control layer interacts with the on-site measurement and control subsystem to realize the trailer moving forward or backward on the track at a set speed according to the control instructions of the on-site measurement and control subsystem, and summarizes and analyzes the trailer operation parameters and various states of the pool equipment during the test and transmits them to the on-site measurement and control subsystem;

[0009] The equipment required for the test at the field level includes trailers, ship models, perception modules, and wave-making and wave-breaking devices. The perception module is used to provide the real-time environment and test data of the test process.

[0010] Its further technical solution is that the trailer management subsystem includes a PLC contained in an electrical cabinet and a laser sensor, a power meter, a hydraulic system, a motor, a DC speed regulator and an encoder connected to the PLC; the laser sensor, the power meter, the hydraulic system, the motor, the DC speed regulator and the encoder are installed at corresponding positions of the trailer, and the encoder is connected to the DC speed regulator to realize real-time speed measurement feedback.

[0011] Its further technical solution is that the PLC also collects data from the pressure sensor and temperature and humidity sensor in the sensing module and compares it with the preset values ​​in the database. If it exceeds the allowable range of work, it will execute the corresponding prompt maintenance or stop work instructions to realize the monitoring and protection of the trailer management subsystem;

[0012] Among them, the pressure sensor is installed in the hydraulic system, and the temperature and humidity sensors are installed in the motor and electrical cabinet.

[0013] Its further technical solution is that each subsystem and each field-level device in the integrated measurement and control system is connected to the test intranet of the test data management subsystem, and the test intranet of the test data management subsystem and the confidential network of the test data management subsystem are synchronized by means of data ferrying;

[0014] The visual centralized control center and all equipment at the field level use wired connections to transmit information, and the trailer management subsystem uses wireless networks to transmit information to the test data management subsystem and the field measurement and control subsystem.

[0015] A further technical solution is that a trailer video recorder is also provided on the trailer, and the trailer video recorder is controlled by the trailer management subsystem to start and stop the task video recording operation, and the real-time situation of the towed object under the trailer is monitored by the trailer video recorder and synchronously transmitted to the visualization centralized control center and the test data management subsystem through the wireless network;

[0016] The field layer also includes pool monitoring recorders distributed in the pools to monitor the pool status information in real time. The pool monitoring recorders are used to transmit information to the visual centralized control center in real time.

[0017] Its further technical solution is that all test data of the test process are stored in the test data management subsystem for a long time, and the on-site measurement and control subsystem temporarily retains the test data and clears it regularly.

[0018] Its further technical solution is to use an integrated measurement and control system to conduct towing tank tests, which is divided into automatic control mode and manual control mode.

[0019] Its further technical solution is that, in the automatic control mode, the workflow of the integrated measurement and control system includes:

[0020] The test data management subsystem issues test tasks to the on-site measurement and control subsystem;

[0021] The on-site measurement and control subsystem analyzes the test task to obtain the corresponding control instructions and configuration parameters, and sends them to the trailer management subsystem;

[0022] The trailer management subsystem controls the trailer to move to the starting position according to the control instructions, and notifies the on-site measurement and control subsystem that the trailer is ready;

[0023] The on-site measurement and control subsystem sends the first set of test sequences to the trailer management subsystem. The first set of test sequences includes switching the trailer operation state, starting the wave-making device, and starting the video recorder.

[0024] The trailer management subsystem performs automatic tests according to the first set of test sequences, and transmits the trailer operation parameters, pool environment data, and equipment test data acquired during the test to the on-site measurement and control subsystem in real time;

[0025] After the measurement of the first set of test sequences is completed, the trailer management subsystem sends trailer position information to the field measurement and control subsystem and requests the next set of test sequences;

[0026] The on-site measurement and control subsystem determines the direction of the trailer according to the current trailer position and the estimated length required for the next test. If it is determined that the trailer continues to move forward, the next set of test sequences will be directly sent to the trailer management subsystem;

[0027] If it is determined that the trailer is in reverse operation, after the trailer is reversed to a position that meets the length expected to be required for the next test, the on-site measurement and control subsystem starts the wave-breaking device and reads the water wave information. After the water surface wave is stable, it sends the next set of test sequences to the trailer management subsystem;

[0028] Repeat the trailer management subsystem to send trailer position information to the field measurement and control subsystem and request the next set of test sequences until all tests are completed, control the trailer to return to the starting position and send complete test data to the test data management subsystem;

[0029] During the test, the visual centralized control center displays the pool environment data, accesses the video recorder and displays it, and displays the equipment test data.

[0030] Its further technical solution is that the test data management subsystem accumulates multiple complete test data. Through analysis, it is known that the distance required for each test of a ship model of a similar size in the towing tank test is required. Based on this, the speed of different trailers in each test is adjusted to maximize the distance required for the test, thereby realizing the scheduling optimization of the trailer operation process.

[0031] The beneficial technical effects of the present invention are:

[0032] With the construction purpose of interconnection of test equipment, significant improvement of automation level, zero information island, integration of test control and collection, and remote centralized control of the test process, an integrated measurement and control system based on towing tank test is proposed. The special test facilities of the trailer system are combined with the hardware and software system of the intelligent network construction layout to complete the overall functional architecture, realize the equipment Internet of Things of the tank test, and the integration of test data collection and analysis. The use of this system can realize the automation of the whole process of the tank test, and also improve the work efficiency of the towing tank test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is the architecture diagram of the integrated measurement and control system based on the towing tank test provided by this application.

[0034] Figure 2 It is a data transmission flow chart of the integrated measurement and control system provided by this application.

[0035] Figure 3 It is the trailer structure diagram provided by this application.

[0036] Figure 4 It is an electrical sensing schematic diagram of the trailer management subsystem provided in this application.

[0037] Figure 5 It is a functional architecture diagram of the integrated measurement and control system provided in this application.

[0038] Figure 6 It is a field network architecture diagram of the integrated measurement and control system provided by this application.

[0039] Figure 7 It is a workflow diagram of the integrated measurement and control system provided in this application in automatic control mode. DETAILED DESCRIPTION

[0040] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0041] Please refer to Figure 1 , Figure 2 As shown, the present application provides an integrated measurement and control system based on towing tank tests, which adopts a five-layer construction architecture of intelligent manufacturing, including: a visual centralized control center (referred to as VCC) at the enterprise layer, a test data management subsystem (referred to as TDM) at the management layer, a field measurement and control subsystem (referred to as TCS) at the operation layer, a trailer management subsystem at the control layer, and various equipment required for the test at the field layer, including trailers, ship models, perception modules, video modules, and wave-making and wave-breaking devices.

[0042] The trailer body structure is as follows: Figure 3As shown, the specific structure can refer to a light high-speed intelligent trailer provided by patent 2021103928905. Compared with traditional trailers, the trailer runs faster and lighter, and is equipped with more advanced trailer management subsystem software, which can realize more interconnected functions. The perception module is used to provide real-time environment and test data of the test process, including laser sensors, encoders, power meters, pressure sensors, temperature sensors, and humidity sensors. The video module includes a trailer video recorder, a pool monitoring video recorder, a video acquisition program, a video playback program, and an LCD screen. Among them, the trailer video recorder is arranged on the trailer, and the trailer video recorder is controlled by the trailer management subsystem to start and stop the task video recording operation. The trailer video recorder monitors the real-time situation of the towed object under the trailer and transmits it synchronously to the visualization centralized control center and the test data management subsystem through the wireless network. The pool monitoring video recorders are evenly distributed in the pool to monitor the pool status information in real time. The pool monitoring video recorder is used to transmit information to the visualization centralized control center in real time.

[0043] The hardware equipment of the integrated measurement and control system also includes network modules and server clusters. The network modules are used to realize the information interaction of each subsystem, including routers, wireless APs, and wired local area networks. The server clusters include test servers, video servers, and test data servers.

[0044] The test data management subsystem TDM is equipped with a test data management program to create and manage test task information. Information related to automated operation includes test number, test type, test status, sponsor, test participants, number of channels, water temperature, water density, viscosity coefficient, ship model draft parameters, draft status, etc. The test data management subsystem TDM interacts with the field measurement and control subsystem TCS to issue test tasks to the field measurement and control subsystem TCS, and classifies, organizes, analyzes and stores test project information and the real-time environment and test data collected during the towing tank test process.

[0045] The field control subsystem TCS is used as a medium for data exchange between the test data management subsystem TDM and the trailer management subsystem. It is used to logically arrange the actions of various equipment at the field level during the test according to the test tasks, so as to match and connect the trailer operation, real-time environment and test data collection, and monitor the safety status, so as to realize unmanned intelligent testing. It will also upload data immediately after each test, add backup servers, and upgrade the trailer management software program, making the system safer and easier to improve.

[0046] like Figure 4As shown, the trailer management subsystem includes a PLC contained in an electrical cabinet and a laser sensor, power meter, hydraulic system, motor, DC speed regulator and encoder connected to the PLC. The laser sensor, power meter, hydraulic system, motor, DC speed regulator and encoder are installed at the corresponding position of the trailer, and the encoder is connected to the DC speed regulator to realize real-time speed measurement feedback. The PLC is equipped with a trailer management program and a health status monitoring program. The PLC controls the motor through the internal storage of operation instructions such as logical operations, sequential control, timing, counting and arithmetic operations. According to the control instructions of the on-site measurement and control subsystem, the trailer moves forward or backward on the track at a set speed, and summarizes and analyzes the trailer operation parameters and various states of the pool equipment during the test and transmits them to the on-site measurement and control subsystem. The PLC also collects data from the pressure sensor and temperature and humidity sensor in the perception module, where the pressure sensor is installed in the hydraulic system and the temperature and humidity sensor is installed in the motor and electrical cabinet. The displacement, voltage and other variables recorded by each sensor are input into the PLC through the encoder and compared with the preset values ​​in the database. If they exceed the allowable working range, the corresponding prompt maintenance or stop work instruction is executed to realize the monitoring and protection of the trailer management subsystem.

[0047] In order to facilitate rapid installation and debugging during the test, the data acquisition module of the trailer no longer adopts the traditional technical solution of installing the sensor on the ship model and installing the amplifier and signal acquisition module on the trailer. Instead, it makes full use of the on-site wireless network under construction and installs a set of 8-channel high-precision amplifier / acquisition module integrated modules directly on the trailer. It is then connected to the industrial computer of the trailer management subsystem via the wireless network to achieve remote wireless data acquisition.

[0048] The visualization centralized control center VCC integrates various test data sources by accessing the test data management subsystem TDM and the on-site measurement and control subsystem TCS to display the real-time environment and test data, test analysis data and on-site video of the towing tank test process, meeting the visualization and remote collaboration requirements of the test work. The visualization centralized control center VCC is equipped with a visualization integrated display program, which collects and centrally displays the test data obtained by the data acquisition program during the test, the video images obtained by the video module, the equipment and environmental parameter data obtained by the perception module, and the data simulated by the test data management program through the transmission and interaction of the network module. The visualization centralized control center VCC consists of two parts. The first part is the software function of the visualization centralized control center, which realizes the collection, integration and display of various data, including the display in the central control room and the display on the tank site, and provides functions such as comparative display of historical data. The second part is the software implementation service of the visualization centralized control center, including the entire implementation service of the visualization centralized control center, including demand research, design, installation and commissioning, trial operation and other services, to ensure the smooth implementation and acceptance of the system.

[0049] The overall functional architecture of the integrated measurement and control system is as follows: Figure 5 As shown in the figure, through the intelligentization of instruments and equipment and the construction of test networks, remote control and automatic control of test equipment can be realized, the data exchange speed of the test site can be improved, the personnel and time occupied by the test can be reduced, and the test automation level can be improved. Through the design of the test data management system, a visual centralized control center is integrated. The field network architecture of the integrated measurement and control system is shown in the figure. Figure 6 As shown in the figure, in this system, all subsystems are connected to the internal network of the test, and the connection methods of each access part are as follows:

[0050] (1) All subsystems and field-level equipment in the integrated measurement and control system are connected to the test intranet of the test data management subsystem TDM; (2) The terminal serves as the terminal of TDM and provides location services for test engineers; (3) The field measurement and control subsystem TCS is deployed in the system as the data acquisition and field control layer; (4) The visual centralized control center VCC can access TDM and obtain real-time data from TCS; (5) All test data of the test process are stored in TDM for a long time, and TCS temporarily retains the test data and clears it regularly (for example, clearing it after retaining it for 6 months); (6) Environmental sensors are controlled by TCS; (7) The test intranet of TDM and the confidential network synchronize data through data ferrying; (8) VCC and all field-level devices use wired connections to transmit information, increasing system reliability; (9) Due to the particularity of the trailer's movement, the trailer management subsystem uses a wireless network to transmit information to TDM and TCS, that is, the control acquisition equipment and camera equipment on the high-speed light trailer are connected via a wireless network; (10) The trailer management subsystem terminal receives instructions from TCS and sends back real-time data to TCS. After the entire test is completed, the complete test data will be uploaded to TDM; (11) The data of the trailer's visual monitoring module is stored in the camera controller, and real-time image data can be uploaded to VCC through remote commands, so that VCC can obtain real-time data (including video) through the network. Through the above network layout, the Internet of Things for water tank test equipment and the integration of test data collection and analysis are realized.

[0051] When using the integrated measurement and control system to carry out the towing tank test, it is divided into automatic control mode (common mode) and manual control mode (emergency mode). In this embodiment, the work flow of the integrated measurement and control system in the automatic control mode is mainly introduced, such as Figure 7 As shown, specifically including:

[0052] 1. The test data management subsystem TDM issues test tasks to the on-site measurement and control subsystem TCS;

[0053] 2. TCS analyzes the test task to obtain the corresponding control instructions and configuration parameters, and sends them to the trailer management subsystem;

[0054] 3. The trailer management subsystem sends the configuration parameters related to the trailer's automatic operation to the PLC. The PLC controls the trailer to run to the starting position at the reverse speed according to the control instructions, and notifies the TCS through the trailer management subsystem that the trailer is ready;

[0055] 4. TCS sends the first set of test sequences to the trailer management subsystem. The first set of test sequences includes switching the trailer operation status, starting the wave generator, starting the video recorder, etc.

[0056] 5. The trailer management subsystem performs automatic tests according to the first set of test sequences, and transmits the trailer operation parameters, pool environmental data, and equipment test data obtained during the test to TCS in real time. Specifically, the trailer management subsystem gives the PLC the instruction to switch the trailer operation status, and the PLC controls the trailer to accelerate to the set speed at the set acceleration. This process is acceleration operation; the PLC controls the trailer to enter the uniform speed section and notifies the trailer management subsystem to start measurement; after the measurement is completed, the trailer management subsystem notifies the PLC to slow down and stop, and the PLC waits according to the set value (such as 15 seconds) after stopping.

[0057] 6. After the measurement of the first set of test sequences is completed, the trailer management subsystem sends the trailer position information to the TCS and requests the next set of test sequences;

[0058] 7. TCS determines the direction of the trailer according to the current trailer position and the estimated length required for the next test. a. If it is determined that the trailer continues to move forward, the next set of test sequences will be directly sent to the trailer management subsystem;

[0059] b. If it is determined that the trailer is reversing, the TCS sends a reversing command to the PLC through the trailer management subsystem. After the trailer reverses to a position that meets the length expected to be required for the next test, the TCS starts the wave-breaking device and reads the water wave information. After the water surface wave stabilizes, the next set of test sequences is sent to the trailer management subsystem.

[0060] 8. Repeat the trailer management subsystem sending trailer position information to TCS and requesting the next set of test sequences until all tests are completed, controlling the trailer to return to the starting position and sending complete test data to TDM;

[0061] 9. During the test, the visual centralized control center VCC displays the pool environment data, accesses the video recorder and displays it, and displays the equipment test data.

[0062] The entire process, including preparation, formal testing and subsequent processing, is fully automatic, greatly reducing the manpower required. For safety reasons, the manual control mode is still retained. The process design is reasonable and scientific, which can also improve test efficiency.

[0063] In the current test process, due to the lack of a large amount of analytical data, trailers are often tested in order of speed from small to large, as shown in Table 1, which may result in a certain waste of execution efficiency.

[0064] Table 1. Traditional trailer operation schedule

[0065] first Second time The third time Fourth 1.1M / S 1.7M / S 2.1M / S 2.5M / S 1.3M / S 1.9M / S 1.5M / S

[0066] As for the integrated measurement and control system of the present application, it has accumulated many complete test data in the test data management subsystem TDM. Through analysis, it is known that the distance required for each test (speed / acceleration / …) of a ship model of similar size in the towing tank test is adjusted based on this to adjust the speed of different trailers in each test to maximize the distance required for the test, thereby optimizing the trailer operation schedule. The optimized trailer operation schedule is shown in Table 2. Compared with Table 1, the number of runs required for the test can be reduced by one round trip, which improves the test efficiency.

[0067] Table 2. Optimized trailer operation schedule

[0068] first Second time The third time 1.3M / S 1.9M / S 1.1M / S 1.5M / S 2.1M / S 2.5M / S 1.7M / S

[0069] The above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. An integrated measurement and control system based on towing tank test, characterized in that: The system adopts a five-layer intelligent manufacturing architecture, including: The visualized centralized control center at the enterprise level accesses the test data management subsystem and the on-site measurement and control subsystem to display the real-time environment and test data, test analysis data and on-site video of the towing tank test process, meeting the visualization and remote collaboration requirements of the test work; The test data management subsystem at the management level interacts with the on-site measurement and control subsystem to issue test tasks to the on-site measurement and control subsystem, and classifies, organizes, analyzes and stores test project information and the real-time environment and test data collected during the towing tank test process; The field measurement and control subsystem located at the operation layer serves as a medium for data exchange between the test data management subsystem and the trailer management subsystem, and is used to logically arrange the actions of various devices at the field layer during the test process according to the test tasks, so as to achieve the matching and connection between trailer operation, real-time environment and test data collection, and to monitor the safety status; The trailer management subsystem located at the control layer interacts with the on-site measurement and control subsystem to realize the trailer moving forward or backward on the track at a set speed according to the control instructions of the on-site measurement and control subsystem, and summarizes and analyzes the trailer operation parameters and various states of the pool equipment during the test and transmits them to the on-site measurement and control subsystem; The equipment required for the test at the field level includes trailers, ship models, sensing modules, and wave-making and wave-breaking devices. The sensing modules are used to provide real-time environment and test data during the test process. When the integrated measurement and control system is used to carry out the towing tank test, in the automatic control mode, the working process of the integrated measurement and control system includes: The test data management subsystem issues test tasks to the on-site measurement and control subsystem; The on-site measurement and control subsystem analyzes the test task to obtain corresponding control instructions and configuration parameters, and sends them to the trailer management subsystem; The trailer management subsystem controls the trailer to run to the starting position according to the control instruction, and notifies the on-site measurement and control subsystem that the trailer is ready; The on-site measurement and control subsystem sends a first set of test sequences to the trailer management subsystem, wherein the first set of test sequences includes switching the trailer operation state, starting the wave generator, and starting the video recorder; The trailer management subsystem performs automatic testing according to the first test sequence, and transmits the trailer operation parameters, water tank environment data and equipment test data acquired during the test to the on-site measurement and control subsystem in real time; After the measurement of the first set of test sequences is completed, the trailer management subsystem sends trailer position information to the on-site measurement and control subsystem and requests the next set of test sequences; The on-site measurement and control subsystem determines the direction of the trailer according to the current trailer position and the length expected to be required for the next test. If it is determined that the trailer continues to move forward, the next set of test sequences is directly sent to the trailer management subsystem; If it is determined that the trailer is in reverse operation, after the trailer is reversed to a position that meets the length expected to be required for the next test, the on-site measurement and control subsystem starts the wave-breaking device and reads the water wave information, and after the water surface wave is stable, sends the next set of test sequences to the trailer management subsystem; Repeat the process of the trailer management subsystem sending trailer position information to the field measurement and control subsystem and requesting the next set of test sequences until all tests are completed, control the trailer to return to the starting position and send complete test data to the test data management subsystem; During the test, the visual centralized control center displays the pool environment data, accesses the video recorder and displays it, and displays the equipment test data.

2. The integrated measurement and control system based on the towing tank test according to claim 1 is characterized in that: The trailer management subsystem includes a PLC contained in an electrical cabinet and a laser sensor, a power meter, a hydraulic system, a motor, a DC speed regulator and an encoder connected to the PLC. The laser sensor, the power meter, the hydraulic system, the motor, the DC speed regulator and the encoder are installed at corresponding positions of the trailer, and the encoder is connected to the DC speed regulator to realize real-time speed measurement feedback.

3. The integrated measurement and control system based on the towing tank test according to claim 2 is characterized in that: The PLC also collects data from the pressure sensor and temperature and humidity sensor in the sensing module and compares them with the preset values ​​in the database. If the data exceeds the allowed range, the PLC executes the corresponding maintenance prompt or stop work instruction to realize the monitoring and protection of the trailer management subsystem. Wherein, the pressure sensor is installed in the hydraulic system, and the temperature and humidity sensors are installed in the motor and the electrical cabinet.

4. The integrated measurement and control system based on the towing tank test according to claim 1 is characterized in that: Each subsystem and each field-layer device in the integrated measurement and control system is connected to the test intranet of the test data management subsystem, and the test intranet of the test data management subsystem and the confidential network of the test data management subsystem are synchronized by means of data ferrying; The visual centralized control center and each device at the field level use wired connection to transmit information, and the trailer management subsystem uses a wireless network to transmit information to the test data management subsystem and the field measurement and control subsystem.

5. The integrated measurement and control system based on the towing tank test according to claim 1 is characterized in that: The trailer is also provided with a trailer video recorder, which is controlled by the trailer management subsystem to start and stop the task video recording operation, and the real-time situation of the towed object under the trailer is monitored by the trailer video recorder and synchronously transmitted to the visualization centralized control center and the test data management subsystem through the wireless network; The field layer also includes pool monitoring recorders distributed in the pools to monitor pool status information in real time. The pool monitoring recorders are used to transmit information to the visualization centralized control center in real time.

6. The integrated measurement and control system based on towing tank test according to claim 1 is characterized in that: All test data of the test process are stored in the test data management subsystem for a long time, and the field measurement and control subsystem temporarily retains the test data and clears it regularly.

7. The integrated measurement and control system based on towing tank test according to claim 1 is characterized in that: When the integrated measurement and control system is used to conduct towing tank tests, there is also a manual control mode.

8. The integrated measurement and control system based on towing tank test according to claim 1 is characterized in that: The test data management subsystem has accumulated many complete test data. Through analysis, it is known that the distance required for a ship model of a similar size in the towing tank test is required for each test. Based on this, the speed of different trailers in each test is adjusted to maximize the distance required for the test, thereby realizing scheduling optimization of the trailer operation process.

Citation Information

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