Application Research of Visual Simulation Technology in the Field of Marine Engine Room Simulator

2014 ◽  
Vol 644-650 ◽  
pp. 3350-3356
Author(s):  
Hao Sheng Shen ◽  
Jun Dong Zhang ◽  
Yan Biao Li ◽  
Fei Han

To improve the training effect of marine engine room simulator in the aspect of training marine engineer and save the cost of training in real ships, this paper extends the framework of traditional marine engine room simulator by taking full advantage of visual simulation technology and the configuration of framework is presented. The framework is divided into three parts by functionality which is three-dimensional engine room visual simulation side, server side and two-dimensional marine engine room simulator side and the function of each part is also described in details. To implement the function of interaction and collaborative operation of marine engine room simulator under this framework, communication protocol between three-dimensional side and two-dimensional is established and processing mode of interactive entity is designed. This marine engine visual simulation training system has been applied to actual training, achieved better training effect and save the cost of training in real ships of marine education effectively.

2015 ◽  
Vol 727-728 ◽  
pp. 987-990 ◽  
Author(s):  
Hao Zhong ◽  
Xu Chen ◽  
Wen Qian Shu ◽  
Xiao Dong Chen

In order to make training for the substation operation and maintenance personnel professional skills more effectivethis paper has designed a three-dimensional substation simulation training system based on Unity3d.In this paper,a variety of virtual scenes of the substation are studied,designed a 3Dsimulation training system of substation based on operation and maintenance personnel behavior. Framework of system comprises two-dimensional mathematical modeling, 3D modeling, development and release of platform.


2013 ◽  
Vol 303-306 ◽  
pp. 2191-2197
Author(s):  
Xiao Hong Lu ◽  
Qiu Shi Zhang ◽  
Xue Feng Zhang ◽  
Zhang Rui

The training of distribution operators is an important link to ensure the safe operation to effectively enhance the training effect,the paper put forward a new teaching form that combining the line operation and simulation training. It firstly analyzes the distribution network simulation training function demand, then designs training simulation system structure,extracts simulation training process,introduces the key technology:three-dimensional simulation technology,then simulation training process,finally gives the system development example. The application result shows the power line operation simulation training system can effectively guarantee the operation training effect,has a great practical significance.


2011 ◽  
Vol 403-408 ◽  
pp. 2281-2284
Author(s):  
Yan Fei Liu ◽  
Xiao Yu Jiang ◽  
Feng Ting Shen

The paper researchs on the TCP/IP based Multi-Role virtual surgery simulation training system, which is an intelligent surgery simulation training platform .It make a comprehensive application of visual simulation technology, force feedback technology and Human-Computer interaction technology. Visual simulation technology includes virtual reality, artificial intelligence and dynamic modeling. The use of the TCP/IP interfaces expands the number of user and realizes Multi-Roles collaborative in the same virtual simulation surgery training.


2014 ◽  
Vol 926-930 ◽  
pp. 1771-1774
Author(s):  
Feng Xue

With the rapid development of computer technology, Visual simulation technology is mature, widely applied to every field of education, teachers and students benefit, the teaching effect has improved significantly. From the characteristics, function of visual simulation technology, visual simulation technology are introduced in the sports teaching the application of visual simulation system design a set of sports training. The system construction of virtual scene by using the method of training detail step by step, based on the three-dimensional image VRP interactive platform for the development environment, visual simulation for sports training. The practice proved: the system simulation is high, achieved the effect of sports training simulation, and operation flow.


Geophysics ◽  
1991 ◽  
Vol 56 (11) ◽  
pp. 1778-1785 ◽  
Author(s):  
Dave Hale

Three‐dimensional seismic wavefields may be extrapolated in depth, one frequency at a time, by two‐dimensional convolution with a circularly symmetric, frequency‐ and velocity‐dependent filter. This depth extrapolation, performed for each frequency independently, lies at the heart of 3-D finite‐difference depth migration. The computational efficiency of 3-D depth migration depends directly on the efficiency of this depth extrapolation. McClellan transformations provide an efficient method for both designing and implementing two‐dimensional digital filters that have a particular form of symmetry, such as the circularly symmetric depth extrapolation filters used in 3-D depth migration. Given the coefficients of one‐dimensional, frequency‐ and velocity‐dependent filters used to accomplish 2-D depth migration, McClellan transformations lead to a simple and efficient algorithm for 3-D depth migration. 3-D depth migration via McClellan transformations is simple because the coefficients of two‐dimensional depth extrapolation filters are never explicitly computed or stored; only the coefficients of the corresponding one‐dimensional filter are required. The algorithm is computationally efficient because the cost of applying the two‐dimensional extrapolation filter via McClellan transformations increases only linearly with the number of coefficients N in the corresponding one‐dimensional filter. This efficiency is not intuitively obvious, because the cost of convolution with a two‐dimensional filter is generally proportional to [Formula: see text]. Computational efficiency is particularly important for 3-D depth migration, for which long extrapolation filters (large N) may be required for accurate imaging of steep reflectors.


Author(s):  
H.A. Cohen ◽  
T.W. Jeng ◽  
W. Chiu

This tutorial will discuss the methodology of low dose electron diffraction and imaging of crystalline biological objects, the problems of data interpretation for two-dimensional projected density maps of glucose embedded protein crystals, the factors to be considered in combining tilt data from three-dimensional crystals, and finally, the prospects of achieving a high resolution three-dimensional density map of a biological crystal. This methodology will be illustrated using two proteins under investigation in our laboratory, the T4 DNA helix destabilizing protein gp32*I and the crotoxin complex crystal.


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