Cornell AUVSI Competition Entry 2005
This paper presents the 2005 Autonomous Underwater Vehicle (AUV) designed by the Cornell University AUV Team. This year's vehicle builds on the team's previous iterations and maintains the aspects that have proven to be successful in the past, including a dual hull structure, brushless motors, explicit separation of hardware by functionality, and flexible software. Significant improvements made this year include a modular sensor infrastructure, signal and power backplanes, enhanced power management, and improved vehicle control.
Modular hardware infrastructure for autonomous underwater vehicles
Autonomous underwater vehicles (AUVs) are taking on increasingly visible and valuable roles in oceanographic research institutions, the offshore industry, and the military (Podder et al., 2004 and Yongkuan, 2002). AUV research, especially at the university level, is hindered by the lack of flexible and affordable platforms suitable for a wide range of applications. This paper presents an electrical and mechanical infrastructure developed to improve the flexibility and modularity of research AUVs. External devices can be added or replaced with minimal vehicle modification. A power backplane offers built-in monitoring and switching for all electronic devices. A signal backplane allows new electronics to be quickly integrated into the existing system. Easily detachable segments make the entire system mechanically modular.
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.