Collision and conflict avoidance system for autonomous unmanned air vehicles (UAVs)
First Claim
1. A collision and conflict avoidance system for an autonomous unmanned air vehicles, comprising:
- on-board radar, TCAS, IR, and optical sensors used by the system to generate an image of the surrounding airspace; and
an analysis unit that analyzes a situation thus established for imminent conflicts comprising at least one of collisions, TCAS violations, and airspace violations, and, if a conflict is detected, that initiates a search for avoidance options, which provide avoidance routes that maximize compliance with applicable air traffic regulations.
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Accused Products
Abstract
A collision and conflict avoidance system for autonomous unmanned air vehicles (UAVs) uses accessible on-board sensors to generate an image of the surrounding airspace. The situation thus established is analyzed for imminent conflicts (collisions, TCAS violations, airspace violations), and, if a probable conflict or collision is detected, a search for avoidance options is started, wherein the avoidance routes as far as possible comply with statutory air traffic regulations. By virtue of the on-board algorithm the system functions independently of a data link. By taking into account the TCAS zones, the remaining air traffic is not disturbed unnecessarily. The system makes it possible both to cover aspects critical for safety and to use more highly developed algorithms in order to take complicated boundary conditions into account when determining the avoidance course.
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Citations
7 Claims
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1. A collision and conflict avoidance system for an autonomous unmanned air vehicles, comprising:
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on-board radar, TCAS, IR, and optical sensors used by the system to generate an image of the surrounding airspace; and an analysis unit that analyzes a situation thus established for imminent conflicts comprising at least one of collisions, TCAS violations, and airspace violations, and, if a conflict is detected, that initiates a search for avoidance options, which provide avoidance routes that maximize compliance with applicable air traffic regulations. - View Dependent Claims (2, 3, 4)
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5. A method for collision and conflict avoidance for an unmanned aircraft, said method comprising:
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sensors accessible on board said aircraft detecting objects in airspace surrounding said aircraft; a path prediction module extrapolating flight paths for said objects detected by said sensor; for each such object, determining the probability of a conflict or collision based on predetermined zones surrounding said aircraft; if a conflict or collision is determined to be probable, initiating an avoidance maneuver to avoid such conflict or collision;
wherein,if it is determined that the object will enter a first, relatively larger, predetermined zone, a planned avoidance maneuver is implemented, based on a path planning algorithm which determines a flight plan that is optimized under aeronautical boundary conditions; and if it is determined that the object will enter a second, relatively smaller predetermined zone, a reactive avoidance maneuver is implemented autonomously. - View Dependent Claims (6, 7)
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Specification