关键词： 虚拟现实技术   顶板灾害   3ds Max   Unity 3D  

摘要： 从煤矿安全培训实际需求分析入手,文章确定了矿井灾害防治演练的总体目标和设计方案,将沉浸式虚拟现实技术引入至煤矿安全培训领域,研发了基于虚拟现实技术的煤矿井灾害防治演练平台。通过音效、文字、动画、三维漫游等形式,展示矿井灾害发生原因及造成的后果,该系统的使用极大提高了矿井安全培训的质量,取得了良好的培训效果。

关键词： 虚拟现实技术   工业部门   我国经济发展   计算机图形技术   农作物生产   畜禽饲料   配合饲料   饲料销售  

摘要： 畜牧业处于我国经济发展早期,一般作为农作物生产副业的一种,近年来,我国在“后院畜牧业”相对独立的产业发展中逐渐分化为强大工业部门,为畜牧业与生产服务投入了机械、设备、配合饲料、兽药等,涉及畜牧业产业加工,如奶制品、肉类品。这些年,各领域都在各项科技水平创新中有所突破,畜牧业也不例外,尤其是计算机图形技术、辅助技术,在虚拟现实技术的革新进化发展中,新一代虚拟现实技术为人们创造了全新的视觉形象,更关键的是极大加强了广大用户的积极互动参与性。

关键词： 计算机仿真  

ISBN: (纸本)9787568290197

摘要： 本书介绍了101VR编辑器的功能和使用，并以小案例和综合案例穿插其中。书中包含认识101创想世界、编辑器界面简介、场景编辑基础、事件编辑、事件的行为、事件的条件、事件编辑深入、案例编辑——过故人庄、案例编辑——昆虫花园9个章节。

关键词： 虚拟现实  

ISBN: (纸本)9787121408762

摘要： 本书介绍了虚拟现实技术的最新发展状况，详细介绍了虚拟现实技术的基础理论及方法，重点介绍了目前具代表性的虚拟现实相关软件、工具的使用和开发方法。全书分为7章，内容包括虚拟现实技术概述、3D数学基础、3ds Max建模工具、Web3D技术、Unity3D、Unreal Engine和增强现实技术。

关键词： Virtual reality  

摘要： Computer virtual reality technology has emerged in recent years;it is a widely used new technology in many areas. In this study, a three-dimensional simulation of the impact study conducted with the non-slip motion of swimming training channel wall upstream performance. Inertial coordinate system self-propelled swimming is checked directly by forced virtual reality technology. The hydrodynamic performance of previous systems has not been discovered based on simulations of this simple model. To transform the Android mobile phone system into a multi-segment robot with some rigid bodies and similarities. The proposed pre-processing feature of naive Bayesian algorithm analysis is a key technology for classification applications. Virtual reality technology and swimming training can prevent sports injuries and disrupt the binding constraints, and Android phones can enhance the effectiveness of education. The proposed naive Bayes algorithm is based on the study of virtual parameters of tailbeat frequency, followed by phase differences between adjacent body segments and body amplitudes. The effects of lateral and vertical distances between the model body and the swimming performance wall are also discussed. The results provide evidence for the mechanism of thrust generation, and ambient speed and vorticity fields and swimming training show excellent effects in sports. © 2021

关键词： Traffic simulation   Virtual reality   Driving simulation   Human-in-the-loop  

摘要： Microscopic traffic simulation (MTS) is the emulation of real-world traffic movements in a virtual world with various traffic entities (e.g., vehicles and pedestrians). Typically, the movements of these entities in the simu-lation are governed by some pre-defined algorithms (e.g., car-following models and lane-changing models). Modelers may develop customized algorithms through an application programming interface (API). In com-parison to the human-controlled vehicles, however, any algorithm will fall short. Other than the configuration of some simplified behavioral parameters (e.g., reaction time), most of the existing MTS models have limited human-in-the-loop simulation abilities to capture the interactions among simulated entities. Besides, most existing MTS models do not provide a realistic virtual environment that enables high-fidelity simulations of the driver behavior in response to various driving conditions, such as road and weather conditions. This paper aims to develop a framework for improving MTS models and extending their capabilities by incorporating distributed vehicles controlled by human-in-the-loop with virtual reality (VR) technologies. This framework supports not only multiple/many users from geographically distributed locations but also interactive visualizations with VR devices from the perspective of a driver and other users (e.g., pedestrians). Data collected from the user-controlled vehicles can be used to calibrate different algorithms like car following, lane changing, etc., or to explore the virtual world from different perspectives for design investigation by potential stakeholders. This paper describes the overall framework, the significant challenges in the proposed approach, and our solutions to these challenges.

关键词： 航天器  

ISBN: (纸本)9787512434851

摘要： 本书在《掌握与精通STK》的基础上，重点对STK在航天领域中应用较为广泛的专业模块进行整理归纳，涵盖卫星专业分析工具、轨道机动与轨道设计模块、覆盖分析模块、关联分析模块、光电红外模块、雷达模块、导弹任务分析工具、太空环境及其效应模块、任务规划模块、轨道确定模块共10个模块。

标准号: T/SIA 021-2021