METHOD AND DEVICE FOR FORECASTING TRESPASS AND COLLISION AND RECORDING MEDIUM WITH TRESPASS AND COLLISION FORECASTING PROGRAM RECORDED

摘要

PROBLEM TO BE SOLVED: To shorten the processing time by simplifying the trespass forecast processing to a dangerous area of a moving body (an air plane or a vehicle) without sacrificing the forecasting ability. ;SOLUTION: This trespass forecasting device is provided with a trespass inhibition area circumscribed circle calculation part 1 which calculates a circle circumscribed to each dangerous area, a movement range calculation part 3 which calculates the movement range for a certain time of the moving body, a movement range circumscribed circle calculation part 4 which calculates a circle circumscribed to this movement range, an area selection processing part 5 which selects the dangerous area whose circumscribed circle crosses the circumscribed circle of the movement range out of dangerous areas, and an area overlap discrimination processing part 6 which discriminates whether the selected dangerous area and the movement range overlap or not. If it is discriminated that they overlap, trespass of the moving body to the dangerous area is forecast.;COPYRIGHT: (C)1999,JPO