EAGER: Underground Infrastructure Sensing, Mapping and Modeling for Smart Maintenance, Sustainability and Usage

该项目研究城市地下供水、下水道、电力、天然气、电信和蒸汽管道和管道的新型三维测绘技术。这些基础设施中的大部分都在老化，处于未知的状态，位置未知。这项研究使用智能城市方法来管理有关城市地下公共设施基础设施的信息，这是美国Ignite/NIST全球城市团队挑战赛(GCTC)的一部分，该挑战赛在邻近的城市伯灵顿和维努斯基开展。这是一个很小的大都市地区，便于实施研究工作，但又足够大，足以阐明影响扩大到较大城市的关键问题。总的办法是审查传感和信息技术，以确定基础设施的状态，并以适当、及时和安全的形式向管理人员、规划者和用户提供。传感器包括先进的探地雷达和连接到高速网络的泄漏传感器。信息将流入和流出一个新的3-D公用事业地图和条件数据库。这些信息将用于移动和固定设备的图形格式显示，并供城市规划者和工程师以及维护和施工人员使用。本研究致力于城市地下基础设施位置和状况的测绘和信息处理。主要研究目标是：1.城市地下三维公用事业测绘和传感器网络数据库--这将是一个集成了建筑信息建模(BIM)和地理信息(GIS)数据库技术的新型系统；2.创新的高速层析探地雷达(GPR)系统--由于城市地下基础设施拥挤的性质，成像和评估埋藏特征受到阻碍。这项研究将研究先进的多站和相控阵探地雷达技术，以测量管道的离轴散射并引导雷达波；3.地下供水管道监测传感器系统-传感器网络的设计需要确定如何将声波、压力和流量测量传感器的不同组合配置到高速光纤遥测网络上，以检测、定位和评估淡水供应系统中的泄漏。原型实验将从声传感器开始；4.数字化和自动化分析工具-探地雷达和传感器网络数据流是多通道的、复杂的和海量的。测绘和条件评估需要自动化的数据处理方法，以及5.实地测试研究--测量邻近城市伯灵顿和弗吉尼亚州维努斯基的公用事业测绘和传感器网络数据库、相关仪器和分析的性能。

This project researches novel 3-D mapping techniques for the pipes and conduits carrying water, sewer, electricity, gas, telecommunications and steam underneath cities. Much of this infrastructure is aging and in unknown condition with unknown locations. The research uses a smart cities approach to managing information regarding urban underground utility infrastructure, as part of the US Ignite/NIST Global Cities Team Challenge (GCTC), operating in the adjacent cities of Burlington and Winooski. This is a small metropolitan region that enables ease of implementation of research efforts, yet big enough to elucidate key issues affecting scaling up to larger cities. The overall approach examines sensing and information technology to determine the state of infrastructure and provide it in an appropriate, timely and secure format for the managers, planners and users. The sensors include advanced ground penetrating radar and leak sensors connected to a high-speed network. Information will flow to and from a novel 3-D utility mapping and condition database. This information will be of use for presentation in graphical format for mobile and fixed devices, and for use by urban planners and engineers, along with maintenance and construction personnel. This research addresses mapping and information processing of the location and condition of underground urban infrastructure. The primary research objectives are: 1. Urban underground 3-D utility mapping and sensor network database - This will be a novel system that integrates Building Information Modeling (BIM) and Geographical Information (GIS) database techniques; 2. Innovative high-speed tomographic ground penetrating radar (GPR) system - Imaging and assessing buried features is hampered by the congested nature of urban underground infrastructure. The research will examine advanced multi-static and phased array GPR techniques to measure scattering from pipes off-axis and to steer radar waves; 3. Underground water pipe monitoring sensor system - The design of the sensor network requires determining how to configure a heterogeneous mix of acoustic, pressure and flow metering sensors onto a high-speed fiber optic telemetry network, to detect, locate and assess leaks in fresh water supply systems. Prototyping experiments will start with acoustic sensors; 4. Digital and automated analysis tools - The GPR and sensor network data streams are multichannel, complicated and voluminous. Automated data processing methods are required for mapping and condition assessment, and 5. Field test research - Measure the performance of the utility mapping and sensor network database, associated instrumentation and analysis in the adjacent cities of Burlington and Winooski, VT.