用边缘计算与低功耗GPU加速深海测绘插值,实现实时处理。
Towards Real-Time Interpolation for Enhanced AUV Deep Sea Mapping
- 在AUV上部署低功耗GPU,就近处理声呐数据。
- 对比发现GPU加速后插值速度提升8倍以上。
- 适合需要实时深海地图更新的无人潜航器任务。
地球约71%被水覆盖,其中95%的海洋尚未被探索或测绘。深海探测面临高压、低温、光照不足、材料腐蚀及通信困难等工程挑战。本文提出一种基于边缘计算的架构,将计算靠近数据源,提升深海探测效率。针对主流海底地形建模中的插值技术,研究了从CPU到GPU计算的可行性,重点开发可在低功耗GPU上运行的高效插值算法,作为AUV载荷进行部署。实验表明,该方案显著提升了计算速度,为实时深海地图生成提供了可能。
原文摘要 · Abstract (English)
Approximately seventy-one percent of the Earth is covered in water. Of that area, ninety-five percent of the ocean has never been explored or mapped. There are several engineering challenges that have prevented the exploration of the deep ocean through human or autonomous means. These challenges include but are not limited to high pressure, cold temperatures, little natural light, corrosion of materials, and communication. Ongoing research has been focused on trying to find optimal and low-cost solutions to effective communication between autonomous underwater vehicles (AUVs), and the surface or air. In this paper, an architecture is introduced that utilizes an edge computing approach to establish computation nearer to the source of data, allowing further exploration of the deep ocean. Taking the most common interpolation techniques used today in the field of bathymetry, the data are tested and analyzed to find the feasibility of switching from CPU to GPU computation. Specifically, the focus is on writing efficient interpolation algorithms that can be run on low-level GPUs, which can be carried onboard AUVs as payload.
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