3D-MTraining Platform Based On Large-Scale Virtual Scene Management

Abstract:In recent years, the management level of mental mine’s safety production has been gradually improved, but kinds of accidents often happened. When the underground mental mine occurs a disaster accident, the reasons, liking the hysteresis of rescue measures and miners are not familiar with work condition, lead bigger personnel and property losses to mine. Therefore, how to reduce losses as much as possible at the time of the accident becomes a research emphasis of mine safety sector.Under this background, This paper designed and developed a3D platform, based on large-scale virtual scene, to simulate the escape process of mental mine at the time of sudden disaster. On the basis of high-precision3D virtual model about mine environment, this platform combines the research achievement of informatization software、virtual character modeling and fire simulator.the main works of this paper are as follows:(1)The demand of the system is analyzed deeply. According that, author has acquired key technology of Virtools.And the author puts forward a model of software development.(2) As to the problems of complex work environment and large static scene model, this paper puts forward the scheduling policy of large-scale virtual scene:According to the classification principles based on closure unit and formal representation of XML documents, the overall work-environment will be divided into multiple scene blocks and saved; Author uses the BOPT or ALM replacement algorithm to manager the cache;This platform uses critical region to trigger the dynamic updating of scene block. Even if operating system only call part of scene blocks, this drilling platform can run normally.(3) The article designs series of data interface to obtain the key information of dynamic models. When a new scene block is loaded in, this platform can real-time update dynamic models of this block, like personal distributions、relief supplies、concentration of disaster and so on. At last, we use particle system to simulation disaster and its diffusion process. The development work and strict system testing of drilling platform has been completed, the test results show that this platform has reached the anticipated goal. The next step is to deploy and use the drilling platform in the specific metal.