The invention discloses a portable autopilot ship rudder detection system which comprises an autopilot ship rudder, a rudder angle generation and feedback apparatus, an ARM terminal module, and a cell phone terminal module. The ARM terminal module comprises a ship motion mathematical model, an ARM terminal ship model parameter setting module and an ARM terminal comprehensive information display system. The cell phone terminal module comprises a cell phone terminal ship model parameter setting module and a cell phone terminal comprehensive information display system. According to the invention, the detection system enables an autopilot ship rudder to run smoothly on a land to vividly simulate the working state of an autopilot rudder on a ship. The system can also conveniently acquire information generate from the rotation of the autopilot ship rudder on spot and in a remote way. The system finds applications in detecting and evaluating the performances of an autopilot ship rudder during research on, manufacturing and maintenance of the autopilot ship rudder by a research institution. The remote detection experiment also raises working efficiency. Further, the detection system of the invention can simulate some maritime experiments, allowing it to be used as a teaching instrument to train students from maritime colleges.

Portable autopilot ship rudder detection system

An unmanned ship semi-physical mathematical simulation platform disclosed by the present invention comprises an unmanned ship body, a shore-based operation platform, a carrier simulation computer and an environment simulation computer. The unmanned ship body comprises a ship shell, the ship shell is equipped with an automatic driving computer, a navigation sensor unit, an execution mechanism unit and an observation unit, and the automatic driving computer is connected with the shore-based operation platform, the carrier simulation computer and the environment simulation computer. The automatic driving computer and the carrier simulation computer are connected via a hardware interface, the carrier simulation computer and the environment simulation computer are connected together via a high-speed communication network, and the environment simulation computer is connected with a display device. The unmanned ship semi-physical mathematical simulation platform of the present invention obtains the large amounts of information of the product function, performance and reliability by the safe, flexible and cheap system simulation tests, optimizes and perfects the design, eliminates the mistakes in the design by the simulation, and guarantees the successful sea tests.

Unmanned ship semi-physical mathematical simulation platform

The invention discloses a test method for acquiring the dynamic characteristic from load torque to a feedback potentiometer. The method comprises the steps that a test system for acquiring the dynamic characteristic of a hydraulic steering engine is established, wherein the test system comprises a load torque simulator module, a hydraulic steering engine module and a dynamic characteristic determining module; the load torque simulator module applies torque to the hydraulic steering engine module; the hydraulic steering engine module tracks a rudder zero command; and the dynamic characteristic determining module calculates the dynamic characteristic from the torque to the feedback potentiometer. According to the invention, the dynamic characteristic of the hydraulic steering engine can be effectively acquired, which fills the blank of the previous test method. The test method provided by the invention is characterized in that the dynamic characteristic of the hydraulic steering engine is acquired through the data processing of the applied load torque and the feedback potentiometer; the problem that no test method can acquire the resonant frequency of the hydraulic steering engine is effectively solved; and an important support is provided for the design and verification of a hydraulic steering engine model. The test method provided by the invention can be applied to the design of other steering engine products with dynamic characteristic test requirements.

Test method for acquiring dynamic characteristic from load torque to feedback potentiometer

The invention discloses a testing and simulating system for an automatic vessel rudder The testing and simulating system comprises a vessel model parameter setting system, a vessel movement mathematical model processing system, a comprehensive information displaying system, a vessel automatic rudder and a rudder angle generation and feedback device, wherein the vessel movement mathematical model processing system is respectively connected with the rudder angle generation and feedback device and the vessel automatic rudder in a port communication manner, and the rudder angle generation and feedback device and the vessel automatic rudder are connected in the port communication manner; and the communication between the vessel movement mathematical model processing system and the vessel model parameter setting system as well as between the vessel movement mathematical model processing system and the comprehensive information displaying system is completed by data transmission in a program According to the testing and simulating system, a rudder angle feedback amount is produced by a rudder angle feedback device driven by a stepping motor, thus the normal operation of the vessel automatic rudder on land can be realized, a working state of the vessel automatic rudder on an actual vessel is vividly simulated, expenses on labor and materials required in a great number of actual vessel tests are saved for a scientific unit engaged in relevant work of the vessel automatic rudder, and the working efficiency is improved

Liu Yubo

Papers

Testing and simulating system for automatic vessel rudder