【作者】 赵丹；

【导师】 刘贤梅；

【作者基本信息】 大庆石油学院 ， 计算机应用技术， 2009， 硕士

【摘要】 随着计算机技术的快速发展,虚拟现实技术开始融入人类生活的各个领域,人们也不再满足于只在虚拟环境中漫游,而是渴望与环境有进一步的交互。油田开采难度的日益增大,安全问题日益突出,急需对油田操作人员进行安全生产培训。采用虚拟现实技术,研究构建一个符合油田安全生产培训需求的虚拟仿真系统,并在虚拟环境中增加了虚拟角色,使虚拟替身进行操作,因此虚拟角色和虚拟物体的交互变得非常重要。然而现实生活中简单的交互,在虚拟环境中有可能变得非常复杂,虚拟角色需要足够的信息来完成交互。本文介绍了虚拟环境、交互技术及其国内外发展现状。提出了油田安全操作虚拟环境开发框架,研究了构成框架的几何建模、行为建模、场景集成和场景驱动四个阶段的实现方法。对虚拟角色及物体的行为建模使用特征建模方法,把交互信息存储到物体描述中,这种方法减小了计算量,提高了系统运行速度。同时针对油田安全操作仿真系统的特点,对其操作任务进行了分段和分层的任务划分,总结出了一套通用的基本动作,建立了基本动作库。通过使用基本动作库中的动作对虚拟人的行为进行规划。由于Smart物体和基本动作库的可重用性,大大提高了油田安全操作仿真训练系统的开发速度。最后将虚拟环境的开发技术和交互技术应用到了油田安全操作虚拟环境中,获得了很好的应用结果。实际应用表明本文提出的方法具有一定的实用价值和参考意义。更多还原

【Abstract】 As the rapid development of computer technology, virtual reality technology exists in all areas of human life. People are no longer satisfied with only roam in a virtual environment, but are eager to further interaction with the environment. With the increasing difficulty of mining of oil-field, security problems have become increasingly prominent; operators need to be trained for oil-field safety operation urgently. The virtual reality technology was used to construct a simulation system for training of oil-field safety production, and the virtual characters were added to the virtual environment that as the avatar of an operator during their operation. Therefore, virtual characters and virtual interactive objects become very important. in real life the easy interaction there is likely to became very complex in a virtual environment, because sufficient information need to be given to the virtual characters for the interaction.The virtual environment and interactive technology was introduced in this paper as well as their development situation at home and abroad. A development framework was propose for the safety operation of oil-field virtual environment. The framework was composed by four phases; they are geometric modeling, behavioral modeling, integration and scenes driving and implementation method of each phase was studied. Feature modeling was used to solve virtual characters and objects behavioral modeling, interactive information was stored in the description of objects. This method reduces the compute time and improves the speed of the system. At the same time, the operate task is divided through the method of delaminating and subsection to the characteristics of oil-field safety operation simulation system, a set of universal basic motions are summed up and a basic motion database is established. The virtual human’s behaviors are planed using the basic motion. As the Smart objects and the basic motion database can reusable, the speed of the development about simulation for training of oil-fields safety task operation is greatly increased. Finally, the development technology of virtual environment and interactive technology were applied to the safety operation of oil-fields, and good result was obtained. Practical application shows that the method proposed in this paper has a certain practical value and reference value.更多还原