GPS-based anti-collision warning system
First Claim
1. A warning system for predicting collision between two or more relatively moving objects, said system comprising:
- GPS receiver means for receiving accurate timing data from a fixed frame of reference,position determination means connected to the GPS receiver means and operable for determining at a predetermined frequency for each one of said moving objects a respective location in space relative to said fixed frame of reference so as to produce successive frames of positional data for each object,memory means coupled to the position determination means for storing therein the successive frames of positional data,transceiver means on each of said moving objects for transmitting the successive frames of positional data form each one of said moving objects to each of the other ones of said moving objects, and for receiving the successive frames of positional data from each one of the other of said moving objects,path analysis means coupled to the memory means and the transceiver means, and responsive to the successive frames of positional data of each of the moving objects for computing a trajectory for each object relative to the fixed frame of reference,intersection analysis means coupled to the path analysis means and responsive to each one of the computed trajectories for predicting whether two or more trajectories will intersect, andwarning means coupled to the intersection analysis means for warning respective ones of said objects of an impending collision.
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Accused Products
Abstract
A warning system for predicting collision between two or more relatively moving objects, comprising a position determination element for determining at a predetermined frequency for each one of the objects a respective location in space relative to a fixed frame of reference so as to produce successive frames of positional data for each object and a memory element coupled to the position a determination element for storing the successive frames of positional data. A path analysis element is coupled to the memory element and is responsive to successive respective locations of each of the objects for computing a trajectory for each object relative to the fixed frame of reference while an intersection analysis element coupled to the path analysis element and responsive to each one of the computed trajectories predicts whether two or more trajectories will intersect. A warning element is coupled to the intersection analysis element for warning respective ones of the objects of an impending collision.
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Citations
26 Claims
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1. A warning system for predicting collision between two or more relatively moving objects, said system comprising:
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GPS receiver means for receiving accurate timing data from a fixed frame of reference, position determination means connected to the GPS receiver means and operable for determining at a predetermined frequency for each one of said moving objects a respective location in space relative to said fixed frame of reference so as to produce successive frames of positional data for each object, memory means coupled to the position determination means for storing therein the successive frames of positional data, transceiver means on each of said moving objects for transmitting the successive frames of positional data form each one of said moving objects to each of the other ones of said moving objects, and for receiving the successive frames of positional data from each one of the other of said moving objects, path analysis means coupled to the memory means and the transceiver means, and responsive to the successive frames of positional data of each of the moving objects for computing a trajectory for each object relative to the fixed frame of reference, intersection analysis means coupled to the path analysis means and responsive to each one of the computed trajectories for predicting whether two or more trajectories will intersect, and warning means coupled to the intersection analysis means for warning respective ones of said objects of an impending collision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An anti-collision warning apparatus for use by an aircraft, comprising:
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an inertial navigation system; a global positioning system receiver; a radio transceiver; a central processor connected to he inertial navigation system, connected to the global positioning system receiver and connected to the radio transceiver, and operable for receiving global positioning data from the global positioning system receiver, receiving inertial navigation data from the inertial navigation system, for calculating position data of the aircraft, for transmitting the position data of the aircraft through the radio transceiver, for receiving position data of other aircraft through the radio transceiver, for calculating a first trajectory for the aircraft, for calculating other trajectories of the other aircraft, and for generating a warning if the first trajectory and any of he other trajectories indicate a potential collision.
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24. An anti-collision warning apparatus for use by an aircraft equipped with an inertial navigation system, comprising:
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an interface for connection to an aircraft bus of the aircraft and for communicating with the inertial navigation system (INS) of the aircraft; a global positioning system (GPS) receiver; a radio transceiver; a central processor connected to the INS through the interface, connected to the GPS receiver and connected to the radio transceiver, and operable for receiving GPS data from the GPS receiver, receiving INS data through the interface, for calculating position data of the aircraft, for transmitting the position data of the aircraft through the radio transceiver, for receiving position data of other aircraft through the radio transceiver, for calculating a first trajectory for the aircraft, for calculating other trajectories of the other aircraft, and for sending a warning through the interface if the first trajectory and any of the other trajectories indicate a potential collision.
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25. A method of warning of imminent air collisions between a first moving object and other moving objects, comprising the steps of:
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receiving Global Positioning System satellite data; receiving inertial navigation information; calculating the location and acceleration of the first moving object in three axes and for producing therefrom position data; transmitting the position data of the first moving object to all the other moving objects; receiving other position data of the other moving objects; calculating a first trajectory for the first moving object; calculating other trajectories of the other moving objects; and generating a warning if the first trajectory and any of the other trajectories indicate a potential collision. - View Dependent Claims (26)
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Specification