增强现实技术于洪水风险沟通中的应用

气候变迁,特别是洪水问题给地处三角洲的城市带来了与日俱增的风险。作为应对手段,提出一种整合性的洪水风险管理方法,该方法确保了洪水风险沟通在洪水风险管理战略中的重要地位。洪水的可视化作为洪水风险沟通的一种工具,在改变人们对洪水风险的观念方面有着强大的作用。它可以通过互动的方式,使当地的利益相关者了解洪水的剩余风险和未来风险。其中增强现实技术作为一种可视化手段,它的快速发展与应用为风景园林设计、规划与教育等领域提供了崭新的交互方式。首先,探讨增强现实技术(AR)在洪水风险沟通中的应用现状,并重点关注增强现实技术的2个关键应用领域:对现场决策的支持和针对高层次设计的可视化与对景观干预的评估。随后,展示一种基于增强现实技术所开发的应用,该款创新性的应用为洪水风险沟通提供了一种轻量化的可视化手段。     

Evaluation of Augmented Reality in steel column inspection

Examples of Augmented Reality (AR) applications in the Architecture, Engineering, and Construction (AEC) industry remain in the early research and development stage. The adoption of AR in AEC will be facilitated by quantifiably demonstrating the benefits of AR in tasks with AR prototypes. In this study, an experiment was conducted in order to evaluate the benefits of inspection with an AR system prototype over a conventional method. An AR prototype system for inspection, the ARCam, has been developed in the Advanced Construction Systems Laboratory at Purdue University. This paper explains the experimental methodology employed to evaluate the benefits of inspection with the ARCam versus a conventional method and discusses the experimental results. This study focuses on steel column inspection for the experimental evaluation. The results of the experiment indicate that although the AR approach is less precise, it can satisfy standard tolerances, and the simpler and faster setup may compensate for its shortcomings. Even though there are still technical and human factors issues regarding accuracy to be addressed and advanced, the ARCam is a promising inspection device for inspecting steel columns.     

Augmented Reality in built environment: Classification and implications for future research

Augmented Reality (AR) has the potential to change how people interact and experience their surrounding environment. During the last decade a considerable amount of research has been undertaken within the built environment. With this in mind, this paper aims to provide a state-of-the-art review of mainstream studies undertaken between 2005 and 2011 within the normative literature. We found that a total of 120 articles were published in the normative built environment literature within this period. Articles were classified according to their concept and theory, implementation, evaluation (effectiveness and usability) and industrial adoption. The classification of the literature has enabled gaps in the AR literature to be identified and future research directions to be proposed.     

Compatibility issues in Augmented Reality systems for AEC: An experimental prototype study

While human factors have been well researched in virtual environments, it has not received commensurate consideration in Mixed Reality (MR) research. This paper (1) analyzes the feasibility of augmenting human abilities via MR applications in construction tasks from the perspective of cognitive engineering, (2) acknowledges the ergonomics features and research issues in MR systems, and (3) generates partial guidelines to solve ergonomics issues. Also, perceptual incompatibility was validated through an experiment comparing a head mounted display versus a desktop monitor in performing an orientation task. The perceptual incompatibility by using the monitor was significant regarding performance time, accuracy and workload.     

Towards cloud Augmented Reality for construction application by BIM and SNS integration

Huge progress has been made on ‘Augmented Reality’ (AR) techniques such as registration, tracking, and display hardware. However, a construction AR system should be more convenient and combined with in-use applications to support multi-disciplinary users throughout construction lifecycle. This paper presents a video-based on-line AR environment and a pilot cloud framework. The contribution lies in two aspects: firstly, an environment utilizing web3D is demonstrated, in which on-site images are rendered to box nodes and registered with virtual objects through a three-step method; secondly, it is further extended to be “cloud” through federation of BIM (building information modeling) and BSNS (business social networking services). Technical solutions to key issues such as authoring, publishing, and composition are designed. The proposed environment is seamlessly integrated into in-use information systems and therefore enjoys greater usability. Implementations demonstrate how this framework and environment work. Although preliminary, it is conclusive for proof of concept.     

A new paradigm for Human-Building Interaction: the use of CFD and Augmented Reality

This paper presents an interactive speech and gesture recognition-based, immersive Augmented Reality (AR) model designed to visualize and interact with buildings and their thermal environments. The paper introduces a Human–Building Interaction (HBI) model that allows for the efficient exploration of Computational Fluid Dynamics (CFD) data sets in real time. This model includes four components: wireless sensor data, CFD analysis, Human–Computer Interaction (HCI), and AR visualization. The sensor data component tracks temperature and velocity changes that occur within a room and updates the boundary conditions for simulation. The CFD analysis component performs simulation with the new boundary conditions, and the post-processed data are exported as Virtual Reality Modeling Language (VRML) models. The HCI component consists of a library of gesture recognition tasks. These tasks update and process data for the AR visualization component. The AR visualization component aids in tracking the user's movement in real time and poses graphical information onto the Head-Mounted Device (HMD), allowing the user to visualize CFD data sets that are superimposed on to the actual scene.     

InfoSPOT: A mobile Augmented Reality method for accessing building information through a situation awareness approach

The Architecture, Engineering, Construction, and Owner/Operator (AECO) industry is constantly searching for new methods for increasing efficiency and productivity. Facility Managers (FMs), as a part of the owner/operator role, work in complex and dynamic environments where critical decisions are constantly made. This decision-making process and its consequent performance can be improved by enhancing Situation Awareness (SA) of the FMs through new digital technologies. In this paper, InfoSPOT (Information Surveyed Point for Observation and Tracking), is recommended to FMs as a mobile Augmented Reality (AR) tool for accessing information about the facilities they maintain. AR has been considered as a viable option to reduce inefficiencies of data overload by providing FMs with a SA-based tool for visualizing their “real-world” environment with added interactive data. A prototype of the AR application was developed and a user participation experiment and analysis conducted to evaluate the features of InfoSPOT. This innovative application of AR has the potential to improve construction practices, and in this case, facility management.     

虚拟现实技术的工程应用

虚拟现实技术是综合了计算机图形技术、计算机仿真技术、传感器技术、显示技术等多种学科的技术,它能为人机交互对话提供更直接和真实的三维界面,并且能在多维信息空间上创建虚拟信息环境,使用户具有身临其境的沉浸感。     

混合现实技术在建筑工程中的应用研究

混合现实技术能够将虚拟物体与现实实体相互融合,该技术应用于建筑工程领域为设计师提供了全新的方案演示方式,本文从需求出发,探讨混合现实如何应用于建筑工程领域;通过开发测试,进行了建筑工程大空间下混合现实的关键技术研究,为混合现实技术的实际应用提供了需求和技术解决方案。     

高应变动力测试在工程检测中的注意事项

文章首先论述了高应变动力测试的原理,参阅了较多的技术文献并结合自己的工作经验,从桩头的处理,传感器的安装和测试人员技术要求等方面对现场测试过程的应该注意的事项进行了分析和论述。     

Integrating Augmented Reality with Building Information Modeling: Onsite construction process controlling for liquefied natural gas industry

The extent of effectiveness of real-time communication within BIM environment is somehow restrained due to the limited sense of immersion into virtual environments. The objective of this paper highlights the need for a structured methodology of fully integrating Augmented Reality (AR) technology in BIM. Based on the generic review of BIM in construction, this paper forms the rationales for the onsite information system for construction site activities, and then formulates the methods of configuring BIM + AR prototypes. It is demonstrated that, extended to the site via the “hand” of AR, the BIM solution can address more real problems, such as low productivity in retrieving information, tendency of committing error in assembly, and low efficiency of communication and problem solving.     

Defining requirements for an Augmented Reality system to overcome the challenges of creating and using design representations in co-design sessions

ABSTRACT

Within co-design sessions involving designers and non-designers, the type and characteristics of the design representations employed is known to impact the performance of such sessions in terms of idea generation, idea evaluation and communication. This study captures the challenges practitioners face in creating and using design representations for co-design sessions and goes on to investigate the potential of Spatial Augmented Reality (SAR) to overcome those challenges. The advantages of SAR in this application are that, multiple concepts can be represented using one physical model, concepts can be modified live during the session, and additional equipment (such as head mounted displays or handheld devices) is not required, thus eliminating any possible interference with the natural interactions between participants. Interviews with design practitioners and trials with a prototype SAR system are used to identify the key challenges faced by practitioners in their current use of design representations, and to capture the technology requirements for a SAR system for use in co-design sessions. These findings can inform the work of technology developers and researchers working on systems to support co-design sessions.     

基于增强现实技术的传统村落文旅产品数字化设计研究

随着居民消费进一步升级,传统村落旅游的用户需求更加趋向个性化、体验化,但是传统村落旅游过程中仍然存在严重体验落差.文章从文化旅游数字化现状出发,总结当前传统村落旅游中存在的体验问题,阐述增强现实交互技术在文化旅游中的应用优势,并结合增强现实技术设计了一款传统村落文旅数字化产品,帮助解决历史全貌浏览障碍、景点遗漏、分享品质差等体验问题,在保护传统村落历史性的基础上,优化旅游者旅行过程中的体验.     

谁云其人亡,久而道弥著—陶渊明《咏二疏》及历代追和诗平议

在中国历史上,疏广、疏受功遂身退的事迹影响深远;在中国文学史上,陶渊明是别树一帜、影响深远的杰出诗人,学陶是一种延续千年的文学现象,由苏轼开创的追和陶诗的风气,又一直延续到清代。文章以陶渊明《咏二疏》和历代追和的部分诗作为例,探讨历史人物影响和文学作品传播之间的某种规律。     

工程监理在施工阶段工程造价动态控制研究

从工程监理的角度出发,对科研试验大楼项目进行施工阶段工程造价动态控制研究。利用赢得值原理分析项目相关数据,得到计划和实际进展的偏差(成本偏差和进度偏差)。通过分析偏差产生的原因,及时制定有效的改进措施。实践表明,工程监理采取的改进措施有效地解决了成本失控和进度拖延的问题。     

虚拟现实技术在电力工程建设安全培训中的应用

对电力工程建设管理模块及其包含的虚拟现实(VR)技术安全体验进行了基本介绍，分析了安全体验区中VR技术及其在电力工程建设安全培训中的应用。     

项目工程质量动态控制方法初探

有效的项目工程质量动态控制方法是当前项目管理的要求。传统的项目质量控制方法难以直观地反映项目工程质量动态水平。在分析了项目工程质量动态控制的必要性后,对传统质量管理理论和技术进行了初步比较分析,提出了如何建立项目工程质量时间动态控制模型。最后。通过举例指出了其核心工具PQDT图的运用方法和基于质量时间的项目质量管理应用前景。     

动态管理在基桩工程中的应用

通过对广州某高层商住楼基桩工程检测结果分析,采用动态管理理论,建立了基桩施工动态管理模式,并将其应用于该工程中,取得了良好效果.     

动态GPS在工程测量中的应用

本文主要介绍了RTK的优点,在工程测量领域的应用情况,目前所能达到的精度及目前RTK应用过程中存在的问题。最后结合一个实际工程对上述问题作了简要的分析。