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虚拟企业 4

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三维毛笔模型；三维笔道；三维交互绘制；实时力反馈技术 1

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上下文感知；协作学习；社会计算；虚拟组织；无线传感器网络；实时定位系统 1

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A virtual reality system for arm and hand rehabilitation

Zhiqiang LUO, Chee Kian LIM, I-Ming CHEN, Song Huat YEO

《机械工程前沿（英文）》 2011年第6卷第1期页码 23-32 doi: 10.1007/s11465-011-0202-6

摘要：

This paper presents a virtual reality (VR) system for upper limb rehabilitation. The system incorporates two motion track components, the Arm Suit and the Smart Glove which are composed of a range of the optical linear encoders (OLE) and the inertial measurement units (IMU), and two interactive practice applications designed for driving users to perform the required functional and non-functional motor recovery tasks. We describe the technique details about the two motion track components and the rational to design two practice applications. The experiment results show that, compared with the marker-based tracking system, the Arm Suit can accurately track the elbow and wrist positions. The repeatability of the Smart Glove on measuring the five fingers’ movement can be satisfied. Given the low cost, high accuracy and easy installation, the system thus promises to be a valuable complement to conventional therapeutic programs offered in rehabilitation clinics and at home.

关键词： motion tracking rehabilitation optical linear encoder (OLE) virtual reality

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基于虚拟现实的截流施工动态可视化仿真研究

佟大威

《中国工程科学》 2011年第13卷第12期页码 80-83

摘要：

利用虚拟现实和3dsmax技术进行了截流施工场景三维仿真建模，并在此基础上，结合龙口水力指标的动态计算，提出了基于虚拟现实的截流施工三维动态可视化仿真技术，实现了截流过程的逼真预演和多方案的比较分析，从而为截流组织设计与决策提供了强有力的可视化分析手段。

关键词：虚拟现实截流三维动态可视化仿真

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虚拟现实环境下的混凝土坝施工管理与决策

周厚贵,曹生荣,王泉德

《中国工程科学》 2010年第12卷第9期页码 63-68

摘要：

在虚拟现实环境下建立混凝土坝施工管理与决策平台，实现了对坝体结构、浇筑仓位、施工进度、施工机械、现场管理等多维施工信息的高度集成，逼真展现施工场景，可对施工过程及现场管理进行实时交互管理，为混凝土坝施工管理与决策提供了全新的环境。平台具有施工信息管理、坝体模型编辑、浇筑仓位管理、施工场景漫游、施工动画渲染、施工进度模拟、浇筑机械调度、施工过程交互等功能。

关键词：混凝土坝虚拟现实施工管理与决策丹江口大坝加高工程

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Virtual reality system of manned maneuvering unit taking into consideration the disturbance from an astronaut

CHENG Jian, FAN Xiu-min, XU An, HONG Xin, HUANG Wei-dong

《机械工程前沿（英文）》 2006年第1卷第3期页码 282-287 doi: 10.1007/s11465-006-0042-y

摘要： This paper describes a manned maneuvering unit (MMU) virtual reality system. Based on the dynamics/kinematics model of an astronaut equipped with an MMU, a disturbance model of the astronaut s arms under zero gravity conditions is developed. After measuring three initial-position information, the astronaut s arms tracking information is inputted by some tracker setting on an operator using real-time emendation and correction. Finally, the paper presents two different results between loading and unloading the disturbance model within the progress of simulation. From the different results, we find that the motion of an astronaut s arms has greater influence over space walking with the same control mode. The MMU virtual reality provides a new method for the simulation of real space walking, and also a perfect method for developing prototype MMU.

关键词： real-time emendation disturbance maneuvering MMU correction

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雾无线接入网络中面向低时延移动虚拟现实分发的联合上下行资源分配 Research Article

党甜,刘晨熙,刘喜庆,闫实

《信息与电子工程前沿（英文）》 2022年第23卷第1期页码 73-85 doi: 10.1631/FITEE.2100308

摘要：雾无线接入网络（F-RAN）中，雾接入节点上部署了通信、缓存和计算功能，因此，F-RAN被认为是一种可使能移动虚拟现实（VR）应用的无线网络架构。为实现移动VR分发，高效的下行资源分配策略已被广泛研究，但同样重要的VR分发上行资源分配问题至今少有关注。本文研究了基于F-RAN的移动VR分发框架，并同时考虑上行和下行传输的影响。首先，通过刻画系统往返时延，揭示了通信、缓存和计算资源的影响。在此基础上，考虑缓存和计算容量以及上行和下行链路传输容量的约束，提出一种简单高效的往返时延最小化算法。仿真结果表明，与其他基准方法相比，本文所提算法可有效降低往返时延；阐明了通信、缓存和计算资源对往返时延性能的影响。

关键词：虚拟现实分发；雾无线接入网络；往返时延；资源分配

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用于重建物理和虚拟抓取的可重构数据手套 Article

刘航欣, 张泽宇, 焦子元, Zhenliang Zhang, Minchen Li, 蒋陈凡夫, 朱毅鑫, Song-Chun Zhu

《工程（英文）》 2024年第32卷第1期页码 203-220 doi: 10.1016/j.eng.2023.01.009

摘要：

In this work, we present a reconfigurable data glove design to capture different modes of human hand–object interactions, which are critical in training embodied artificial intelligence (AI) agents for fine manipulation tasks. To achieve various downstream tasks with distinct features, our reconfigurable data glove operates in three modes sharing a unified backbone design that reconstructs hand gestures in real time. In the tactile-sensing mode, the glove system aggregates manipulation force via customized force sensors made from a soft and thin piezoresistive material; this design minimizes interference during complex hand movements. The virtual reality (VR) mode enables real-time interaction in a physically plausible fashion: A caging-based approach is devised to determine stable grasps by detecting collision events. Leveraging a state-of-the-art finite element method, the simulation mode collects data on fine-grained four-dimensional manipulation events comprising hand and object motions in three-dimensional space and how the object's physical properties (e.g., stress and energy) change in accordance with manipulation over time. Notably, the glove system presented here is the first to use high-fidelity simulation to investigate the unobservable physical and causal factors behind manipulation actions. In a series of experiments, we characterize our data glove in terms of individual sensors and the overall system. More specifically, we evaluate the system's three modes by ① recording hand gestures and associated forces, ② improving manipulation fluency in VR, and ③ producing realistic simulation effects of various tool uses, respectively. Based on these three modes, our reconfigurable data glove collects and reconstructs fine-grained human grasp data in both physical and virtual environments, thereby opening up new avenues for the learning of manipulation skills for embodied AI agents.

关键词： Data glove Tactile sensing Virtual reality Physics-based simulation

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小型回旋加速器虚拟样机技术

樊明武,余调琴,熊永前,陈德智,熊健,秦斌,洪月明,邓昌东

《中国工程科学》 2003年第5卷第10期页码 8-13

摘要：

小型回旋加速器虚拟样机技术是把小型回旋加速器的理论计算、分析、信息技术与机械设计、加工、装配、调试、运行、维修等专家知识进行有机结合，在系统仿真和虚拟现实基础上发展起来的一种新概念技术。基于虚拟样机，可以实现创新设计，有效降低探索风险。文章探讨了回旋加速器虚拟样机系统框架，讨论了虚拟样机系统的体系结构和回旋加速器产品的全生命周期仿真，提出了基于全生命周期集成和多学科协同设计的回旋加速器虚拟样机的开发思路。

关键词：小型回旋加速器虚拟样机技术增强现实

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Health: a dream from reality to the future

null

《医学前沿（英文）》 2016年第10卷第2期页码 233-235 doi: 10.1007/s11684-016-0444-0

摘要：

This paper argues that health is a realistic productive force that may enhance the index of happiness. As the basis of all developments and the source of a person’s and his/her family’s happiness, health requires not only primary and secondary prevention, but also policy prevention, that is to say, grade-zero prevention. Therefore, people should pay more attention to Health in All Policies. As a new preventive strategy, the policy prevention will help improve people’s health significantly and promote the concepts of “Healthy China” and “the Chinese Dream” or “the World Dream” to realize a dream from reality to the future.

关键词： health promotion primary and secondary prevention policy prevention infectious disease non-communicable disease

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Integration of VR with BIM to facilitate real-time creation of bill of quantities during the design phase: a proof of concept study

Jordan DAVIDSON, John FOWLER, Charalampos PANTAZIS, Massimo SANNINO, Jordan WALKER, Moslem SHEIKHKHOSHKAR, Farzad Pour RAHIMIAN

《工程管理前沿（英文）》 2020年第7卷第3期页码 396-403 doi: 10.1007/s42524-019-0039-y

摘要： As building practices change, procedures that seemed indispensable at one point can be abandoned for others, one example of which is the bill of quantities (B/Q). Research into the extant literature attributes the declining use of B/Qs to a multitude of reasons, such as its complexity, the potentially long time required to produce it, the growth in popularity of non-traditional procurement systems, and the challenge of using the information within the document in a construction schedule. With these issues in mind, building information modeling (BIM) and virtual reality (VR) are combined and proposed as a potential solution that allows inclusion of the client into the design process. Following a literature review and precedent study, an experiment was carried out using this new process to simulate a client’s design decisions on window and interior furnishings. The choices made by the client using VR automatically updated a B/Q schedule built in Revit and allowed them to have a firm understanding of project costs. Besides giving the client more confidence in a pleasing final outcome, the technology also ensured an up-to-date, accurate, and easily understandable B/Q. The proposed method features great potential savings in cost and time and gives the B/Q a newfound importance in future construction processes. The research case presented in this paper is a stepping stone in exploring new opportunities offered by VR and BIM and how they could improve the reliability and accuracy of traditional procurement within construction, specifically within the B/Q document.

关键词： virtual reality bill of quantities BIM Revit real-time synchronisation

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一种具有大工作空间的轻量级力反馈手套 Article

郑宇铠, 王党校, 王子琦, 张昱, 张玉茹, 徐卫良

《工程（英文）》 2018年第4卷第6期页码 869-880 doi: 10.1016/j.eng.2018.10.003

摘要：

在虚拟现实场景中，佩戴力反馈手套是一种有效的增强穿戴者与虚拟物体交互沉浸感的方法。这种手套的设计难点在于需要提供足够大的手指运动工作空间，在模拟自由空间和约束空间交互时提供所需的力反馈感觉，以及确保一个轻量级的结构。本文提出了一种将气动驱动器安装在使用者手背侧的力反馈手套。该手套采用了一种凸轮连杆组合机构，利用带有弯曲滑槽和三个运动副的连杆将阻力从气缸活塞杆传递到指尖。为了得到穿戴者指尖反馈力的一个较大的法向分量，通过分析带有三个运动副的连杆上的力平衡，计算出了滑槽的轮廓。本文研制了质量为245 g 的五指力反馈手套样机，建立了可穿戴的力测量系统，对自由空间和约束空间的力反馈性能进行了定量评价。实验结果表明，该手套在自由空间模拟中平均阻力小于0.1 N，在约束空间模拟中指尖力最大为4 N。实验进一步证实，这种手套能够保证手指的自由移动以及模拟典型的抓取操作手势。

关键词：力反馈手套轻量级大工作空间气压驱动虚拟现实

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我国数字创意技术的发展现状与展望

邓磊,王妙辉,范雷东,袁圆,王振中

《中国工程科学》 2020年第22卷第2期页码 63-70 doi: 10.15302/J-SSCAE-2020.02.009

摘要：

数字创意产业作为国家“十三五”规划确定的战略性新兴产业之一，以全球数字化和网络化为背景，以文化创意、内容生产、版权利用为发展核心，通过融合渗透带动周边产业集群的发展。相关产业发展壮大的基础性支撑在于数字创意技术与创新设计，而这又是我国产业发展的薄弱环节，且面临未来发展路径的缺失状态。本文结合产业数据调研结果，系统梳理了我国数字创意技术中的使能技术、应用技术和终端设备技术的发展现状，总结了超高清视频、三维声、虚拟现实 / 增强现实（VR/AR）、数字内容生产和创新设计软件等具体方向存在的问题与短板。研究表明，设立数字创意技术国家科技重大专项，建设数字创意技术国家工程研究中心，提高数字创意技术人才培养质量，积极参与国际合作并扩大中国文化的影响力，将有力推动我国数字创意技术的中长期发展。

关键词：数字创意文化创意创新设计超高清视频虚拟现实

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Exploring adoption of augmented reality smart glasses: Applications in the medical industry

Nuri BASOGLU, Muge GOKEN, Marina DABIC, Dilek OZDEMIR GUNGOR, Tugrul U. DAIM

《工程管理前沿（英文）》 2018年第5卷第2期页码 167-181 doi: 10.15302/J-FEM-2018056

摘要： This study explores the use of augmented reality smart glasses (ARSGs) by physicians and their adoption of these products in the Turkish medical industry. Google Glass was used as a demonstrative example for the introduction of ARSGs. We proposed an exploratory model based on the technology acceptance model by Davis. Exogenous factors in the model were defined by performing semi-structured in-depth interviews, along with the use of an expert panel in addition to the technology adoption literature. The framework was tested by means of a field study, data was collected via an Internet survey, and path analysis was used. The results indicate that there were a number of factors to be considered in order to understand ARSG adoption by physicians. Usefulness was influenced by ease of use, compatibility, ease of reminding, and speech recognition, while ease of use was affected by ease of learning, ease of medical education, external influence, and privacy. Privacy was the only negative factor that reduced the perceived ease of use, and was found to indirectly create a negative attitude. Compatibility emerged as the most significant external factor for usefulness. Developers of ARSGs should pay attention to healthcare-specific requirements for improved utilization and more extensive adoption of ARSGs in healthcare settings. In particular, they should focus on how to increase the compatibility of ARSGs. Further research needs to be conducted to explain the adoption intention of physicians.

关键词： technology adoption augmented reality smart glasses (ARSGs) healthcare

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Framework based on building information modeling, mixed reality, and a cloud platform to support information

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

《工程管理前沿（英文）》 2020年第7卷第1期页码 131-141 doi: 10.1007/s42524-019-0071-y

摘要： The quality of information flow management has a remarkable effect on the entire life cycle of buildings. Manual retrieval of technical specifications and features of building components and their performance assessment leads to increased cost and time and efficiency reduction, especially during the facility management (FM) stage. The introduction of building information modeling (BIM) in the construction industry can provide a valuable means of improving the organization and exchange of information. BIM tools integrate multiple levels of information within a single digital model of a building. Nevertheless, the support given by BIM to FM is far from being fully effective. Technicians can benefit from real-time communication with the data repository whenever the need for gathering contextual information and/or updating any data in the digital model arises. The framework proposed in this study aims to develop a system that supports on-site operations. Information requirements have been determined from the analyses of procedures that are usually implemented in the building life cycle. These studies set the standard for the development of a digital model of a building, which will be shared among various actors in charge of FM and accessed via a cloud platform. Moreover, mixed reality is proposed to support specific information that is relevant to geometric features and procedures to be followed by operators. This article presents three use-cases supported by the proposed framework. In addition, this research article describes the first proof of concept regarding real-time support for FM.

关键词： information flow management BIM mixed reality common data environment facility management

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张怀清：大数据可视化与虚拟现实技术（2019年11月11日）

2021年04月23日

关键词：大数据

Medical oncology management of advanced hepatocellular carcinoma 2019: a reality check

Amy Lee, Fa-Chyi Lee

《医学前沿（英文）》 2020年第14卷第3期页码 273-283 doi: 10.1007/s11684-019-0728-2

摘要： In terms of global cancer-related deaths, hepatocellular carcinoma (HCC) has the fourth highest mortality rate. Up until 2017, treatment of advanced HCC was largely limited to sorafenib, an oral tyrosine kinase inhibitor, with little to no success in the development of alternative treatment options. However, in the past two years, there has been an unprecedented increase in both the number and type of treatment options available for HCC. As of 2019, the US FDA has approved four oral tyrosine kinase inhibitors, two immune checkpoint inhibitors, and one anti-angiogenesis antibody for the treatment of HCC. Even with this new variety, systemic treatment of advanced HCC remains largely unsatisfactory, and the median survival rate stands at approximately one year. The expected breakthrough of using immune checkpoint inhibitors in advanced HCC did not materialize in 2019. The use of immune checkpoint inhibitors in conjunction with oral tyrosine kinase inhibitors or anti-angiogenesis medications is the current clinical research trend, the results of which are eagerly anticipated. Despite limited progress in survival, HCC research is currently experiencing a period of growth and innovation, and there is hope for significant advances in the treatment of advanced HCC as the field continues to develop.

关键词： hepatocellular carcinoma tyrosine kinase inhibitor check point inhibitor anti-angiogenesis