Uncertainty-aware geospatial system for mapping and visualizing underground utilities
Uncertainty-aware geospatial system for mapping and visualizing underground utilities
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DOI：
10.1016/j.autcon.2015.03.011
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发表时间：
2015-05-01
影响因子：
10.3
通讯作者：
Kamat, Vineet R.
中科院分区：
文献类型：
--
作者：
Li, Shuai;Cai, Hubo;Kamat, Vineet R.
地下公用事业线路被击中是世界范围内的一个长期问题，造成公共服务中断，项目延误，成本超支，财产损失，受伤和死亡，每年造成数十亿美元的损失。公用设施罢工归因于两个主要原因：缺乏关于地下公用设施的真实位置的可靠数据，以及缺乏将与公用设施位置数据相关联的固有不确定性传达给最终用户的有效手段（例如，挖掘机操作员）。不准确的公用设施位置信息导致错误地灌输信心，并可能误导设备操作员进入无意的公用设施罢工。非常需要绘制地下设施图，并为最终用户建立模型和传达不确定性，以确保安全挖掘。本文提出了一个地理空间系统的映射和不确定性感知的可视化地下公用事业。探地雷达（GPR）、全球定位系统（GPS）和地理信息系统（GIS）被集成到一个总的3G系统中，用于地理空间实用数据收集。现场实验进行了评估系统的定位精度，并揭示了位置误差的模式。三维（3D）的概率不确定性带，包围真正的公用事业线与特定的概率开发来处理地下公用事业的位置不确定性。采用多面体表面模型在GIS中可视化3D不确定性带，以将公用设施的位置和相关的不确定性传达给最终用户。地理空间3G系统，连同所提出的3D概率不确定性带，使一些地下公用事业的非破坏性和不确定性的方式，以避免灾难性的公用事业罢工和促进安全挖掘的映射和可视化。(C)2015 Elsevier B.V.版权所有。
Underground utility lines being struck is a long-standing problem worldwide, causing public service disruptions, project delays, cost overruns, property damage, injuries, and fatalities that cost billions of dollars each year. Utility strikes are attributed to two main causes: the lack of reliable data regarding the true locations of underground utilities and the lack of an effective means to communicate the inherent uncertainties associated with utility location data to end-users (e.g., excavator operators). Inaccurate utility location information leads to falsely instilled confidence and potentially misleads equipment operators into unintentional utility strikes. There is a great need to map underground utilities and to model and communicate uncertainties to end-users for safe excavations. This paper presents a geospatial system for mapping and uncertainty-aware visualization of underground utilities. Ground penetrating radar (GPR), global positioning system (GPS), and geographical information system (GIS) are integrated into a total 3G system for geospatial utility data collection. Field experiments are conducted to assess the locating accuracy of the system and reveal the patterns of positional errors. Three-dimensional (3D) probabilistic uncertainty bands that enclose the true utility line with specific probabilities are developed to handle the positional uncertainties of underground utilities. Multipatch surface models are adopted to visualize the 3D uncertainty bands in GIS to communicate both the locations of utilities and the associated uncertainties to end-users. The geospatial 3G system, together with the proposed 3D probabilistic uncertainty bands, enables the mapping and visualization of some underground utilities in a non-destructive and uncertainty-aware manner to avoid disastrous utility strikes and promote safe excavations. (C) 2015 Elsevier B.V. All rights reserved.