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4827418 Expert system for air traffic control and controller training
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New Patents
4819184 METHOD AND A DEVICE FOR OPTIMUM CONTROL OF CONTROL PARAMETERS IN AN INDUSTRIAL ROBOT Sven Jonsson, Erik Persson, Lars Ostlund, Vs, Sweded assigned to ASEA Aktiebolag An industrial robot has a position controller for each one of the axes of the robot and a computer for control of the robot. The computer continuously determines, with the aid of a mathematical model set up in advance, in dependence on the robot configuration and load in question, the mass moment of inertia of the axes, the coupled mass moment of inertia, and the moment caused by gravity. From the relationships between acceleration/deceleration and the drive motor torque for the different axes, the maximum available acceleration/deceleration for the axis is determined while assuming that maximum motor torque prevails for each axis. For each axis this value is compared with the maximum acceleration/deceleration value that may be allowed from the point of view of stability. On the basis of the lower of these values, optimum gain is determined and set in the position controller and/or a path planning parameter.
4821584 PIEZOELECTRIC FILM LOAD CELL ROBOT COLLISION DETECTOR John R Lembke assigned to The United States of America as represented by the United States Department of Energy A piezoelectric load cell which can be utilized for detecting collisions and obstruction of a robot arm end effector includes a force sensing element of metallized polyvinylidene fluoride (PVDF) film. The piezoelectric film sensing element and a resilient support pad are clamped in compression between upper and lower plates. The lower plate has a central recess in its upper face for supporting the support pad and sensing element, while the upper plate has a corresponding central projection formed on its lower face for bearing on the sensing element and support pad. The upper and lower plates are dowelled together for
concentric alignment and screwed together. The upper and lower plates are also adapted for mounting between the robot arm wrist and end effector.
4827418 EXPERT SYSTEM FOR AIR TRAFFIC CONTROL AND CONTROLLER TRAINING Arthur Gerstenfeld assigned to U F A Incorporation A expert system form of artificial intelligence for control of air traffic which may also be utilized for air traffic controller training. The expert system receives input data representing the altitude and heading of all aircraft in the control area. The aircraft data is compared with the data of the other aircraft. Sequencing and local flow control is optimized and if a potential conflict arises between two aircraft, clearances are transmitted to the aircraft to resolve the conflict. The aircraft data is also compared with a knowledge base of air traffic control rules for the particular airport involved. An inference engine written in LISP (or another AI language) allows real time access to the knowledge base. The position and heading of each aircraft is monitored and controlled until turned over to the tower for final approach. The expert system may also be used for air traffic controller training and be used as a intelligent tutor. The air traffic controller trainee's clearances are input and compared to those generated by the system. If the trainee's clearances are in error, or can be improved, the expert system prompts the trainee and coaches him in a way so that he learns from his past errors.
4829426 COMPUTER-IMPLEMENTED EXPERT SYSTEM AND METHOD FOR DECISION-MAKING F Burt assigned to Cogensys Corporation This invention relates to an expert system and method for decision making using computer generated paramorphic models of an expert's decisional process.
New Patents
4819184 METHOD AND A DEVICE FOR OPTIMUM CONTROL OF CONTROL PARAMETERS IN AN INDUSTRIAL ROBOT Sven Jonsson, Erik Persson, Lars Ostlund, Vs, Sweded assigned to ASEA Aktiebolag An industrial robot has a position controller for each one of the axes of the robot and a computer for control of the robot. The computer continuously determines, with the aid of a mathematical model set up in advance, in dependence on the robot configuration and load in question, the mass moment of inertia of the axes, the coupled mass moment of inertia, and the moment caused by gravity. From the relationships between acceleration/deceleration and the drive motor torque for the different axes, the maximum available acceleration/deceleration for the axis is determined while assuming that maximum motor torque prevails for each axis. For each axis this value is compared with the maximum acceleration/deceleration value that may be allowed from the point of view of stability. On the basis of the lower of these values, optimum gain is determined and set in the position controller and/or a path planning parameter.
4821584 PIEZOELECTRIC FILM LOAD CELL ROBOT COLLISION DETECTOR John R Lembke assigned to The United States of America as represented by the United States Department of Energy A piezoelectric load cell which can be utilized for detecting collisions and obstruction of a robot arm end effector includes a force sensing element of metallized polyvinylidene fluoride (PVDF) film. The piezoelectric film sensing element and a resilient support pad are clamped in compression between upper and lower plates. The lower plate has a central recess in its upper face for supporting the support pad and sensing element, while the upper plate has a corresponding central projection formed on its lower face for bearing on the sensing element and support pad. The upper and lower plates are dowelled together for
concentric alignment and screwed together. The upper and lower plates are also adapted for mounting between the robot arm wrist and end effector.
4827418 EXPERT SYSTEM FOR AIR TRAFFIC CONTROL AND CONTROLLER TRAINING Arthur Gerstenfeld assigned to U F A Incorporation A expert system form of artificial intelligence for control of air traffic which may also be utilized for air traffic controller training. The expert system receives input data representing the altitude and heading of all aircraft in the control area. The aircraft data is compared with the data of the other aircraft. Sequencing and local flow control is optimized and if a potential conflict arises between two aircraft, clearances are transmitted to the aircraft to resolve the conflict. The aircraft data is also compared with a knowledge base of air traffic control rules for the particular airport involved. An inference engine written in LISP (or another AI language) allows real time access to the knowledge base. The position and heading of each aircraft is monitored and controlled until turned over to the tower for final approach. The expert system may also be used for air traffic controller training and be used as a intelligent tutor. The air traffic controller trainee's clearances are input and compared to those generated by the system. If the trainee's clearances are in error, or can be improved, the expert system prompts the trainee and coaches him in a way so that he learns from his past errors.
4829426 COMPUTER-IMPLEMENTED EXPERT SYSTEM AND METHOD FOR DECISION-MAKING F Burt assigned to Cogensys Corporation This invention relates to an expert system and method for decision making using computer generated paramorphic models of an expert's decisional process.