Simulation Research on Operation of Union Purchase System in Navigation Simulator
- PDF / 3,416,296 Bytes
- 9 Pages / 612.284 x 810.709 pts Page_size
- 31 Downloads / 189 Views
Simulation Research on Operation of Union Purchase System in Navigation Simulator FAN hang (
),
Þ),
YANG Shenhua ∗ (
SUO Yongfeng (
),
Ü
ZHENG Minjie (
(School of Navigation College, Jimei University, Xiamen 361021, Fujian, China)
)
© Shanghai Jiao Tong University and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Navigation is the only way to develop and utilize marine resources, while the promotion of seafarers’ quality is the basic force of navigation, so navigation simulator plays an important role in modern navigation education. The simulation research on the operation of the union purchase is important to improve the special operation training of the actual cargo handling of the union purchase. On the basis of the Cartesian coordinate system transformation algorithm, the algorithm model of the union purchase operation is constructed. On the basis of three-dimensional (3D) rendering engine technology of open scene graph (OSG), the algorithm model of finding the space coordinates of the cargo point is established. The model of catenary equation is used to optimize the scene appearance of the cargo wire. By combination of QT channel signal mechanism and OSG, the simulation interaction of the union purchase operating system is realized. By acquiring the 3D coordinate values of each point, we fit the trajectories of each point in the operation and compare the trajectories. The results show that the model has high interactivity and small error. The comparison of the states of the cargo wire before and after optimization shows that the optimized wire is more realistic and the high fidelity meets the needs of operational training and simulation systems. Key words: navigation simulator, union purchase, coordinate system transformation, open scene graph (OSG), catenary equation CLC number: TP 391.9 Document code: A
0 Introduction The navigation simulator is a professional teaching and training equipment, which can provide a lifelike navigation environment, allowing user to perform practical operations of the ship business in a virtual scene to achieve the effect of actual ship operations[1] . With the continuous updating of the three-dimensional (3D) view of the navigation simulator, users have more and more requirements for the authenticity and reduction of the 3D visual simulation, and the simulation of the operational systems needs to be improved and optimized. The union purchase operating system is a relatively common operating system for cargo handling on cargo ships. It has the advantages of high efficiency of cargo handling, small labor intensity (compared with derrick), and accurate unloading locations. Therefore, adding the union purchase operation simulation system Received date: 2018-05-04 Foundation item: the National Natural Science Foundation of China (No. 51579114), the Natural Science Foundation of Fujian Province (No. 2018J01485), and the Project of Young and Middle-Aged Teacher Education of Fujian Province (No. JAT170309) ∗E-mail: [email protected]
to the 3D view of the na
Data Loading...
