Patents by Inventor Panagiotis Tsiotras

Panagiotis Tsiotras has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240158104
    Abstract: An exemplary system and method are disclosed for a standalone vision-based system for autonomous online navigation, e.g., around an unknown target small body. The exemplary system (also referred to as AstroSLAM) is predicated on the formulation of the SLAM problem as an incrementally growing factor graph. Using the GTSAM library and the iSAM2 engine, the exemplary system and method combine sensor fusion with the prior orbital motion to provide navigation and parameter estimation that improves the performance over a baseline SLAM implementation. The exemplary system and method can incorporate orbital motion constraints into the factor graph by devising a relative dynamics factor that can link the relative pose of the spacecraft to the problem of predicting trajectories stemming from the motion of the spacecraft in the vicinity of the small body.
    Type: Application
    Filed: November 1, 2023
    Publication date: May 16, 2024
    Inventors: Mehregan Dor, Travis Driver, Panagiotis Tsiotras
  • Patent number: 10296003
    Abstract: An autonomous vehicle research system includes a vehicle having an attached frame and an engine. A sensing, control and data logging unit, mounted on the frame and in control communication with the engine senses vehicle operational parameters, controls the engine and to steering, and transmits operational data and log operational data. An operator control unit in communication with the sensing, control and data logging unit receives operational data from the sensing, control and data logging unit and presents visual real time display of the operational data. The operator control unit includes a manual cut-off switch that causes the engine to cease moving the vehicle. A remote control unit is manually switchable between a remote control mode and an autonomous control mode. In the remote control mode, the user controls the vehicle remotely. In the autonomous mode, the sensing, control and data logging unit controls the vehicle autonomously.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: May 21, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Brian Goldfain, Paul Drews, James Rehg, Evangelos Theodorou, Panagiotis Tsiotras, Grady Williams
  • Publication number: 20180364711
    Abstract: An autonomous vehicle research system includes a vehicle having an attached frame and an engine. A sensing, control and data logging unit, mounted on the frame and in control communication with the engine senses vehicle operational parameters, controls the engine and to steering, and transmits operational data and log operational data. An operator control unit in communication with the sensing, control and data logging unit receives operational data from the sensing, control and data logging unit and presents visual real time display of the operational data. The operator control unit includes a manual cut-off switch that causes the engine to cease moving the vehicle. A remote control unit is manually switchable between a remote control mode and an autonomous control mode. In the remote control mode, the user controls the vehicle remotely. In the autonomous mode, the sensing, control and data logging unit controls the vehicle autonomously.
    Type: Application
    Filed: May 12, 2017
    Publication date: December 20, 2018
    Applicant: Georgia Tech Research Corporation
    Inventors: Brian Goldfain, Paul Drews, James Rehg, Evangelos Theodorou, Panagiotis Tsiotras, Grady Williams
  • Patent number: 8577550
    Abstract: A control system and method to mitigate intersection crashes is disclosed. In one embodiment, the system includes an electronic control module equipped with memory and in communication with at least one radar sensor system, at lest one environmental sensor system, at least one vehicle stability system, an operator advisory system, a brake control system, a controllable steering system, and a powertrain control system. In one embodiment, the method may include determining whether a vehicle is entering an intersection, determining whether the operator is responding correctly to the sensed conditions in the intersection, activating the controlled brakes, determining any intersection threat, determining whether any sensed threat is imminent, activating the accident mitigation adviser, reducing engine torque while in the intersection, and actuating steering and brake control systems while in the intersection.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: November 5, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianbo Lu, Priya Prasad, Panagiotis Tsiotras, Efstathios Velenis, Dimitar Petrov Filev
  • Publication number: 20110082623
    Abstract: A control system and method to mitigate intersection crashes is disclosed. In one embodiment, the system includes an electronic control module equipped with memory and in communication with at least one radar sensor system, at lest one environmental sensor system, at least one vehicle stability system, an operator advisory system, a brake control system, a controllable steering system, and a powertrain control system. In one embodiment, the method may include determining whether a vehicle is entering an intersection, determining whether the operator is responding correctly to the sensed conditions in the intersection, activating the controlled brakes, determining any intersection threat, determining whether any sensed threat is imminent, activating the accident mitigation adviser, reducing engine torque while in the intersection, and actuating steering and brake control systems while in the intersection.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Inventors: Jianbo Lu, Priya Prasad, Panagiotis Tsiotras, Efstathios Velenis, Dimitar P. Filev
  • Publication number: 20030173845
    Abstract: Rotor systems are provided comprising rotor, magnetic bearings and a magnetic bearing controller. The controller is one which varies in accordance with linear parameters and is preferably responsive to linear matrix inequalities. High speed, low loss flywheel systems, especially electromagnetic flywheel batteries are facilitated through such rotor systems.
    Type: Application
    Filed: November 5, 2002
    Publication date: September 18, 2003
    Inventors: Paul E. Allaire, Robert O. Bartlett, Panagiotis Tsiotras
  • Publication number: 20020005672
    Abstract: Rotor systems are provided comprising rotor, magnetic bearings and a magnetic bearing controller. The controller is one which varies in accordance with linear parameters and is preferably responsive to linear matrix inequalities. High speed, low loss flywheel systems, especially electromagnetic flywheel batteries are facilitated through such rotor systems.
    Type: Application
    Filed: January 22, 2001
    Publication date: January 17, 2002
    Applicant: Trinity Flywheel Power
    Inventors: Paul E. Allaire, Robert O. Bartlett, Panagiotis Tsiotras