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相关概念视频

Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

48
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
48
Design Example: Maintaining Level of an Embankment01:19

Design Example: Maintaining Level of an Embankment

61
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
61
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

28
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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Field Procedure for Staking Out Curves01:26

Field Procedure for Staking Out Curves

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Staking out curves is an essential process in construction to ensure the accurate alignment of structures along a curved path. This task involves positioning stakes at calculated locations corresponding to the curve's design, effectively translating plans into physical markers in the field. The process begins by determining the geometric parameters of the curve, including the radius, central angle, and tangent distances. These parameters are critical for identifying key points such as the...
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Updated: Jun 28, 2025

Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds
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自动化车道中心化:一款现成的计算机视觉产品与基于基础设施的芯片启用高架路面标记器.

Parth Kadav1, Sachin Sharma1, Johan Fanas Rojas2

  • 1Department of Mechanical and Aerospace Engineering, Western Michigan University, 4601 Campus Dr, Kalamazoo, MI 49008, USA.

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概括

支持芯片的升降路面标记器 (CERPM) 为自动驾驶汽车 (AV) 提供了具有成本效益的解决方案,直接向汽车传输关键数据. 这项技术提高了AV的运行稳定性和能源效率,在具有挑战性的条件下优于传统系统.

关键词:
移动眼睛 (Mobileye) 是一个移动眼睛.先进的驾驶辅助系统 (ADAS) 是指高级的驾驶辅助系统.自动驾驶汽车 (AV) 是一种自动驾驶汽车.芯片启用高架路面标记器 (CERPM)计算机视觉 计算机视觉控制 控制 控制基础设施传感器基础设施传感器车道的中心化 车道的中心化感知 感知 感知 感知车辆到基础设施 (V2I)

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科学领域:

  • 自主系统 自主系统
  • 基础设施 技术 技术 基础设施
  • 机器人和人工智能机器人与人工智能

背景情况:

  • 安全的自动驾驶汽车 (AV) 运行依赖于通过传感器准确地感知环境,从而导致高计算负载.
  • 传统的车道标志是不可靠的,因为色,建筑区,和限制在不利的条件下.
  • 现有的直接数据传输方法,如高清地图和路边装置 (RSU),实施和维护成本昂贵.

研究的目的:

  • 引入和评估支持芯片的升降路面标记器 (CERPMs) 作为一种新的,具有成本效益的基础设施信息源 (IIS) 为AVs.
  • 评估CERPM在降低AV计算负载和能源消耗方面的表现.
  • 将CERPM的检测和可靠性与传统的基于计算机视觉的车道检测系统进行比较.

主要方法:

  • 沿着车道线安装了CERPM,通过LoRaWAN协议直接向AV传输地理空间数据和速度限制.
  • 一个感知子系统处理了来自CERPM和Mobileye计算机视觉系统的数据,用于车道集中 (LC) 应用.
  • 系统性能在三个测试路线上进行了评估,路线曲率和条件各不相同.

主要成果:

  • 移动眼系统无法检测道路曲率超过±0.016 m-1的车道标记,在的曲率场景中只有6.7%的检测.
  • 在所有测试场景中,CERPM成功生成了用于车辆控制的参考轨迹,证明了其高可靠性.
  • CERPM提供了高达340米的可靠检测,大大提高了AV感知范围和稳定性.

结论:

  • CERPM技术为提高AV运行稳定性和能源效率提供了可行且具有成本效益的解决方案.
  • CERPM有效地解决了传统车道标记和计算机视觉系统的局限性,特别是在复杂的驾驶环境中.
  • 这种被动的IIS有可能克服AV感知和控制系统当前的挑战.