| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a computer for calculating a route to a changed landing position when change of the landing position of an unmanned aircraft is required during flying, and landing the unmanned aircraft at the changed landing position. Ž<P>SOLUTION: The computer 4 mounted on the unmanned aircraft 1 includes a storage part 43 in which a DEM database 431 is stored, and a landing route calculation part 110. The landing route calculation part 110 commands to change the landing position of the unmanned aircraft 1 during flying, receives the landing position change command including a two-dimensional coordinate of the changed landing position on an earth surface plane from a ground control device 9 through a wireless machine 7, and calculates the landing route to the changed landing position based on the two-dimensional coordinate included in the received landing position change command and the DEM database 431. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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