MRI: Development of Instrumentation for an Autonomous Underwater Sensor Network System

MRI：自主水下传感器网络系统仪器的开发

• 批准号: 0821597
• 负责人: Jun-Hong (June) Cui
• 金额: $ 50万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0821597&HistoricalAwards=false
• 关键词: MRI; Development; Instrumentation; Autonomous; Underwater

Proposal #: CNS 08-21597PI(s): Cui, Jun-Hong (June) Babb, Ivar G.; Shi, Zhijie; Torgersen, Thomas; Zhou, ShengliInstitution: University of Connecticut Storrs, CT 06269-1133Title: MRI/Dev.: Dev. of Instrumentation for an Autonomous Underwater Sensor Network SystemProject Proposed:This project, developing instrumentation for a scalable autonomous underwater sensor network (UWSN) system, contributes better sensing and surveillance technology to acquire better data to understand the spatial and temporal complexities of the oceans. The instrumentation includes the development of high data rate acoustic modems (Aqua-Modems), energy efficient integrated underwater nodes (Aqua-Motes), and experimental underwater sensor network (lab and field) testbeds. The Aqua-Modems lead the new generation of acoustic modem design supporting two features: - High data rate and robust data transmission and - Advanced networking functionalities.The aqua-Motes will be the first generation of 'true' integrated underwater sensor nodes, similar to Berkeley Motes for terrestrial sensor networks. The two types of Aqua-Motes will be constructed with different processors for easy adaptation to a wide range of applications. The lab and field testbeds with Aqua-Modems and Aqua-Motes will be used to test various algorithms and protocols designed for UWSNs. UWSNs are novel and significantly different from any terrestrial sensor network. Due to the high coefficient of electromagnetic absorption, radio does not work well in water. Instead, acoustic communication is usually employed. The unique characteristics of acoustic underwater communication, such as low bandwidth, long propagation delay, and high error rate, pose grand challenges to underwater acoustic modem and network designers as existing terrestrial wireless sensor network techniques cannot be applied. New research at every level of the protocol suite and new experimental instrumentation are needed to implement, test, and compare design alternatives and potential solutions. This instrument enables the latter to address the continuing and growing interest in observing oceanic processes as they evolve. There is an increasing need to monitor the marine environment for commercial exploration, coastline protection, and tracking processes that contribute to the observed complexity. By deploying distributed and scalable sensor networks in a 3-dimensional underwater space, each underwater sensor can monitor and detect environmental parameters and events locally. Processes occur within the water mass as it advects and disperses within the environment in the dynamic ocean system. Therefore a langrangian observation system with passively mobile sensors (with water currents) allows observation of oceanic processes in situ on appropriate time and space scales. A self-organizing network of lagrangian sensors also provides better support for sensing, monitoring, surveillance, scheduling, underwater control, and fault tolerance. Thus, the UWSN will provide this support.Broader Impacts: This project promotes progress on the multiple issues facing UWSNs towards practical solutions in a wide range of applications. Furthermore, it impacts education in several fronts: supporting graduate students in their advanced research and undergraduates summer interns (including community college students participating in programs that promote STEM disciplines to underserved minorities) and bringing together investigators from different disciplines (e.g., ocean science, sensors, low energy, and networking) to learn from each other and collaborate across departments and campuses.

提案编号：CNS 08-21597PI(s)：Cui, Jun-Hong (June) Babb, Ivar G.；石志杰；托格森，托马斯；周胜利机构：康涅狄格大学斯托尔斯分校，CT 06269-1133标题：MRI/开发：开发。自主水下传感器网络系统仪器项目建议：该项目为可扩展的自主水下传感器网络（UWSN）系统开发仪器，提供更好的传感和监视技术，以获取更好的数据来了解海洋的空间和时间复杂性。该仪器包括开发高数据速率声学调制解调器（Aqua-Modems）、节能集成水下节点（Aqua-Motes）以及实验性水下传感器网络（实验室和现场）测试台。 Aqua-Modems 引领新一代声学调制解调器设计，支持两个功能： - 高数据速率和强大的数据传输以及 - 先进的网络功能。aqua-Motes 将是第一代“真正的”集成水下传感器节点，类似于陆地传感器网络的 Berkeley Motes。这两种类型的 Aqua-Motes 将采用不同的处理器构建，以便轻松适应广泛的应用。配有 Aqua-Modems 和 Aqua-Motes 的实验室和现场测试台将用于测试为 UWSN 设计的各种算法和协议。 UWSN 是新颖的，并且与任何地面传感器网络显着不同。由于电磁吸收系数高，无线电在水中无法正常工作。相反，通常采用声音通信。水声水下通信的独特特性，如低带宽、长传播延迟和高错误率，给水声调制解调器和网络设计人员带来了巨大的挑战，因为现有的陆地无线传感器网络技术无法应用。需要在协议套件的各个级别进行新的研究和新的实验仪器来实施、测试和比较设计方案和潜在的解决方案。该仪器使后者能够满足人们对观测海洋过程演变的持续和日益增长的兴趣。人们越来越需要监测海洋环境以进行商业勘探、海岸线保护和跟踪过程，这些过程导致了观察到的复杂性。通过在 3 维水下空间中部署分布式且可扩展的传感器网络，每个水下传感器都可以在本地监视和检测环境参数和事件。 当水团在动态海洋系统的环境中平流和分散时，会发生一些过程。因此，具有被动移动传感器（带有水流）的朗格朗日观测系统允许在适当的时间和空间尺度上原位观测海洋过程。拉格朗日传感器的自组织网络还为传感、监测、监视、调度、水下控制和容错提供更好的支持。因此，UWSN 将提供这种支持。 更广泛的影响：该项目促进了 UWSN 面临的多个问题的进展，以在广泛的应用中找到实际的解决方案。此外，它还影响多个方面的教育：支持研究生进行高级研究和本科生暑期实习生（包括参与向服务不足的少数族裔推广 STEM 学科的项目的社区学院学生），并将来自不同学科（例如海洋科学、传感器、低能耗和网络）的研究人员聚集在一起，相互学习并跨院系和校园进行合作。