System and method of automatic monitoring of linear ground targets for a remotely piloted aircraft

摘要

A system for monitoring linear ground targets (12), configured to be installed on an airplane (1) adapted to fly over a geographical area (10), including: - an image and / or video capture device (2) that can be operatively coupled to said aircraft (1); - a location device (4) suitable to be installed in the aircraft (1) and configured to provide first geographical coordinates (LATV, LONV) of said aircraft (1) that identify a current position of the aircraft (1) along a flight route address (dTRK); - a memory (16) that stores second (LATA, LONA), third (LATB, LONB) and fourth (LATC, LONC) default geographic coordinates of at least one first (A), one second (B) and one third (C ) terrestrial position respectively, defining said second and third respective geographic coordinates vertices (A, B) of a first straight target (14a) to be monitored, and defining said third and fourth respective geographical coordinates vertices (B and C) of a second straight target (14b), contiguous with the first straight objective, to be supervised so that the first and second straight objectives (14a and 14b) form a simple polygonal chain (14); - processing logic (6) operatively connected to the capture device (2), the location device (4) and the memory (16), and configured to: (i) acquire, from the location device (4), the first geographical coordinates that identify a current position of the aircraft along said flight travel direction (dTRK); (ii) acquire, from memory (16), the second, third and fourth predetermined geographical coordinates; (iii) subdivide the geographical area (10) into a first and a second geographical subzone (10a and 10b) separated from each other by said simple polygonal chain (14); (iv) determine if there is an ideal first straight line, passing the first ideal straight line through the first geographical coordinates and orthogonally intersecting the first straight objective (14a); (v) if said first ideal straight line exists, direct said capture device (2) towards the first straight target along the direction defined by said first ideal straight line, otherwise perform the operation (vi) to (vi ) determining a second ideal straight line that passes through the first geographical coordinates and orthogonally intersects the second straight target, and directing said capture device (2) towards the second straight target along the direction defined by said second straight line ideal, characterized in that the processing logic (6) is further configured to define a first operating zone (II) associated with the first straight target (14a), a second operating zone (V) associated with the second straight target (14b), and a third operative zone (III), said first operative zone (II) being included between a boundary line L4 orthogonal to the first straight target (14a) and passing through the second coor geographical denate (LATA, LONA), and a boundary line L1 orthogonal to the first straight target (14a) and passing through the third geographical coordinates (LATB, LONB), said second operational zone (V) being included between a boundary line L2 orthogonal to the second straight target (14b) and passing through the third geographical coordinates (LATB, LONB), and a boundary line L3 orthogonal to the second straight target (14b) and passing through the fourth geographic coordinates (LATC , LONC), and said third operational zone (III) being included between the limit line L2 and the limit line L1 and being defined by the partial overlapping of the first and second operational zones, where the processing logic (6) is further configured to: - control said capture device (2) to acquire images associated with the first straight target (14a) at a first acquisition speed when the aircraft (1) flies over said first operational zone (II), eg ro not said third operational zone (III); - controlling said capture device (2) to acquire images associated with the second straight target (14b) at a second acquisition speed when the aircraft (1) flies over said second operational zone (V), but not said third operative zone ( III); and - controlling said capture device (2) to acquire images associated with both the first straight lens (14a) and the second straight lens (14b) at a third acquisition rate, larger than the first and second acquisition rates, when the plane (1) flies over said third operational zone (III).