Patent ID: 8583357
Filing Date: 2013-11-12
Classification: G05D,G08G

Abstract:
1. A target identification device installed in a user object, comprising: a user information obtaining part that obtains a position, a speed over ground and a course over ground of the user object; a target information obtaining part that obtains a position, a speed over ground and a course over ground of a target object; a processor in communication with the user information obtaining part and the target information obtaining part, wherein when the speed over ground of the user object is greater than a first low speed determination value, the processor calculates a closest point of approach, and a time to the closest point of approach with respect to the target object and the user object, based on the position, the speed over ground and the course over ground of the user object and the position, the speed over ground and the course over ground of the target object, when the speed over ground of the user object is equal to or less than the first low speed determination value, the processor replaces the course over ground of the user object with a direction oriented toward the target object and calculates the closest point of approach and the time to the closest point of approach.