权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Efficient sensors for underwater communications

用于水下通信的高效传感器

基本信息

批准号：
ST/V002325/1
负责人：
Gavin Bell
金额：
$ 34.04万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FV002325%2F1
关键词：
Efficient sensors underwater communications

项目摘要

The world has become accustomed to reliable, high-speed and ubiquitous communication. Whether through physical connections or radio-based systems (e.g. WiFi and Bluetooth) we take for granted the ability for people and, increasingly, autonomous devices to communicate. However, ranged communication in the ocean is much more challenging, especially at high data transfer rates. But this capability is beneficial for an increasing range of ocean-based activities including defence and security capabilities, waste management, safety, environmental and pollution monitoring, and commercial work including remote maintenance of pipelines, decommissioning of oil and gas infrastructure, and aquaculture.Sub-sea communication is very challenging, with ordinary radio solutions not feasible (power consumption, range and data transfer rate are unfavourable). Sonar systems - transmitting sound waves through water - have excellent range but only support slow data rates. So, for example, it is not possible to transmit enough data for a video feed using sonar. By contrast, optical communication - transmitting light through water - can achieve extremely high data rates. For example, the world's first live stream of multiple cameras from a submersible to a global audience was achieved in 2019 using Sonardyne Ltd.'s BlueComm technology.https://www.sonardyne.com/worlds-first-live-video-broadcast-from-underwater-uses-sonardynes-bluecomm/ However, the range of sub-sea optical communication is very limited. A major problem is stray light, which can interfere with optical communications at the optimum wavelengths (colours) for transmission through sea water. At longer ranges the communication signal is swamped by the stray light, and so the effective range of the communications system can vary drastically depending on lighting conditions (depth, time of day, artificial light sources). Our proposal aims to further develop a new type of light sensor, originally inspired by particle physics detector technology and developed as a collaboration between particle physics and surface science research groups in Warwick. A unique property of the sensor is that it can be made totally insensitive to the stray light found in typical sub-sea environments (submersible vehicles' and divers' lights and, near the surface, sunlight or even moonlight) without needing inefficient optical filters. This sensor could form a vital part of the next generation of an advanced optical sub-sea communications system. The system will enable more efficient and longer-range high-speed communications between remote undersea vehicles, ocean sensor stations and other sub-sea infrastructure.

世界已经习惯了可靠、高速和无处不在的通信。无论是通过物理连接还是基于无线电的系统（例如WiFi和蓝牙），我们都理所当然地认为人类以及越来越多的自主设备具有通信能力。然而，海洋中的远程通信更具挑战性，特别是在高数据传输速率下。但这种能力对越来越多的海洋活动是有益的，包括国防和安全能力、废物管理、安全、环境和污染监测，以及商业工作，包括管道的远程维护、石油和天然气基础设施的退役以及水产养殖。海底通信非常具有挑战性，普通无线电解决方案不可行（功耗、范围和数据传输速率不利）。声纳系统——在水中传输声波——有很好的覆盖范围，但只支持较慢的数据速率。因此，举例来说，使用声纳传输足够的视频数据是不可能的。相比之下，光通信——通过水传输光——可以实现极高的数据速率。例如，使用Sonardyne Ltd.的BlueComm技术，在2019年实现了世界上第一个从潜水器到全球观众的多摄像机直播。https://www.sonardyne.com/worlds-first-live-video-broadcast-from-underwater-uses-sonardynes-bluecomm/然而，海底光通信的范围非常有限。一个主要问题是杂散光，它会干扰通过海水传输的最佳波长（颜色）的光通信。在较远的距离，通信信号被杂散光淹没，因此通信系统的有效范围可以根据照明条件（深度，一天中的时间，人工光源）发生巨大变化。我们的提案旨在进一步开发一种新型光传感器，最初受到粒子物理探测器技术的启发，并作为粒子物理和华威大学表面科学研究小组之间的合作而开发。该传感器的一个独特特性是，它可以完全不受典型海底环境（潜水器和潜水员的灯光，以及靠近水面的阳光甚至月光）中的杂散光的影响，而不需要低效的光学滤光片。这种传感器可能成为下一代先进光学海底通信系统的重要组成部分。该系统将在远程水下航行器、海洋传感器站和其他海底基础设施之间实现更高效、更长距离的高速通信。