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Augmented Reality “AR” is a promising paradigm that can offer users with real-time, high-quality visualization of a wide variety of information. In AR, virtual objects are added to the real-world view in real time. The AR technology can offer a very realistic environment for enhancing drivers’ performance on the road and testing drivers’ ability to react to different road design and traffic operations scenarios. This can be achieved by adding virtual objects (people, vehicles, hazards, and other objects) to the normal view while driving an actual vehicle in a real environment. This paper explores a new Augmented Reality Vehicle “ARV” system and attempts to apply this new concept to a selected traffic engineering application namely the left-turn maneuver at two-way stop-controlled “TWSC” intersection. This TWSC intersection experiment, in addition to testing the feasibility of the application, tries to quantify the size of gaps accepted by different driver’s characteristics (age and gender). The ARV system can be installed in any vehicle where the driver can see the surrounding environment through a Head Mounted Display “HMD” and virtual objects are generated through a computer and added to the scene. These different environments are generated using a well defined set of scenarios. The results from this study supported the feasibility and validity of the proposed ARV system and they showed promise for this system to be used in the field-testing for the safety and operation aspects of transportation research. Results of the left-turn maneuver study revealed that participants accepted gaps in the range of 4.0-9.0 s. This finding implies that all gaps below 4 s are rejected and all gaps above 9 s are likely to be accepted. The mean value of the left-turn time was 4.67 s which is a little bit higher than reported values in the literature (4.0-4.3 s). Older drivers were found to select larger gaps to make left turns than younger drivers. The conservative driving attitude of older drivers indicates the potential presence of reduced driving ability of elderly. Drivers’ characteristics (age and gender) did not significantly affect the left-turn time. Based on the survey questions that were handed to participants, most participants indicated good level of comfort with none or small level of risk while driving the vehicle with the ARV system. None of the participants felt any kind of motion sickness and the participants’ answers indicated a good visibility and realism of the scene with overall good system fidelity. 相似文献
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采用虚拟仪器(简称VI)技术,利用美国NI公司数据采集卡和虚拟仪器设计平台LabVIEW开发了船舶水下自噪声分析系统,并利用该系统进行了实船的水下自噪声测试分析。该系统及主要功能包括:采集卡驱动、A/D转换、信号调制、文件存储、示波、FFT谱分析、1/3Oct、细化分析、在线分析、离线分析、报表结果打印等。通过实船测试与传统仪器分析的结果对比,证明该方法方便宜行。 相似文献
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介绍虚拟数字转速仪的硬件设计和软件设计.该系统不仅实现了转速的非接解式测量,而且其精度高、抗干扰能力强,具有较好的应用价值. 相似文献
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采用数理统计原理,运用SPSS软件对陕西省7条高速公路交-竣工平整度数据进行分析,得出了陕南、关中和陕北地区路面平整度衰变幅度均值分别为0.39m/km、0.28m/km和0.24m/km,这也将作为计算竣工验收推荐值的依据;再基于交-竣工平整度变化规律,建立了平整度竣工验收推荐值的计算公式:IRIju=IRIji+IRIs,可为今后平整度竣工验收标准提供有效的理论依据。 相似文献
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基于ADAMS/Car Ride车辆平顺性仿真研究 总被引:1,自引:0,他引:1
以虚拟样机技术进行车辆平顺性仿真研究.建立了基于ADAMS/Car Ride的多体动理学模型,通过虚拟四柱试验台对模型进行仿真试验。仿真结果表明,ADAMS/Car Ride可方便地进行路面功率谱密度响应仿真试验,所建立的包含虚拟四柱试验台的整车模型可深入进行车辆平顺性研究。 相似文献
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