Topic
Guidance system
About: Guidance system is a research topic. Over the lifetime, 4282 publications have been published within this topic receiving 45964 citations.
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Patent•
19 Jul 2006
TL;DR: In this article, a system for switching a transport vehicle comprising of a guideway, a vehicle that moves along the guideway and a magnetic field source that creates a force on the vehicle to affect motion in a desired direction at a switch is described.
Abstract: A system for switching a transport vehicle comprising: a guideway, a vehicle (4) that moves along the guideway, and a magnetic field source that creates a force on the vehicle to affect motion in a desired direction at a switch. Once the vehicle (4) has started motion through the switch (7) the guidance can be continued by use of permanent magnets (2D, 2S) until the normal guidance system is effective. The switching scheme can work with any suspension scheme, including wheels and maglev, and can work with any lateral guidance scheme, including horizontal guide wheels and magnetic guidance. The system can be used with very closely spaced vehicles, such as with Personal Rapid Transit, material handling, and elevators with multiple cabs in the same shaft.
37 citations
TL;DR: A novel nonlinear adaptive path following controller that compensates for drift forces though time-varying sideslip for amphibious Hovercrafts and is intended for maneuvering of an amphibious hovercraft in the horizontal-plane to follow a predefined parametrized curve without time constraints is presented.
37 citations
Patent•
14 Jun 2017
TL;DR: In this article, positional awareness techniques employing sensory data gathering and analysis hardware with reference to specific example implementations implement improvements in the use of sensors, techniques and hardware design that can enable specific embodiments to provide positional awareness to machines with improved speed and accuracy.
Abstract: The described positional awareness techniques employing sensory data gathering and analysis hardware with reference to specific example implementations implement improvements in the use of sensors, techniques and hardware design that can enable specific embodiments to provide positional awareness to machines with improved speed and accuracy. The sensory data are gathered from an operational camera and one or more auxiliary sensors.
37 citations
TL;DR: The paper describes the overall approach along flight experimental results obtained in an Interactive Guidance and Control Laboratory, and the consistency achieved between the RH optimization and the SVF enables a more rigorous implementation of the RH framework to autonomous vehicle guidance.
36 citations
TL;DR: In this article, a self-tuning steering controller based on minimum variance control was designed for tractor guidance. But this controller is not suitable for all noncontact types of positioning systems.
Abstract: Automatic guidance of farm tractors would improve productivity of many field operations by reducing operator fatigue and improving machine performance. A self-tuning steering controller, which can be used for all noncontact types of positioning systems, was designed for tractor guidance. A simple two degrees-of-freedom model was chosen with which to develop a prediction model used in recursive least-squares parameter estimation. A variable forgetting factor was implemented and its algorithm modified to cope with time-varying nonlinear systems. The self-tuning steering controller based upon minimum variance control was tested and verified with a tractor dynamic simulator. Circular, lane change, and sinusoidal paths were used. A model tractor was also used to verify controller performance for straight-line and sinusoidal paths.
36 citations