| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a position specifying device and method for specifying the ground position of an autonomous vehicle on the ground of a planet or in the neighborhood of the ground. <P>SOLUTION: This system and method for position-specifying and navigating autonomous vehicles (102, 310) enable those vehicles (102, 310) to travel between those positions. The first position estimation (112) of the vehicles (102, 310) is derived from both or one of satellites (132-170, 200-206) and one or more pseudo satellites (105) of a global position specifying system (100A). One or more pseudo satellites (105) can be exclusively used when the satellites (132-170, 200-206) are not present in the field of view of the vehicles (102, 310). The second position estimation (114) is derived from both or one of an inertia reference unit (904) and a vehicle traveling distance meter (902). The first and second position estimation is combined and filtered so that the third position estimation (118) can be derived. The navigation of the vehicles (102, 310) is searched by using position information (414), obstacle detection and prevention data (416), and mounted vehicle data (908, 910). <P>COPYRIGHT: (C)2003,JPO |
