Patent ID: 6658365
Filing Date: 2003-12-02
Classification: G05D,G11B

Abstract:
A collision avoidance system which avoids a collision between a plurality of movers traveling on a path divided into sections of various lengths, said system comprising:a position/velocity calculator which estimates a position and velocity for each of the plurality of movers based upon one of a first position and first velocity for each of the plurality of movers which passes a boundary between adjacent sections and a second position and second velocity for each of the plurality of movers which are traveling within any of said sections based upon a previous of said first position and first velocity for each of the plurality of movers which are traveling within any of said sections; a collision-chance determiner which determines whether there is a chance that each two neighboring movers will collide with each other, using said estimates of position and velocity, and an emergency stopper which stops two neighboring movers when said collision-chance determiner determines that there is a chance of collision between the two neighboring movers.