Collision avoidance system for carriages.

摘要

A collision avoidance system for carriages (23) moving in series on a track (1) includes a light emitting element (51) mounted on a rear portion of each carriage (23) for emitting a light (P) backward, a first light detecting element (52) mounted on a front portion of each carriage (23) for detecting a light (P) emitted from the light emitting element (51) of a preceding carriage (23), and a controller (57) for decelerating a carriage (23) when the first light detecting element (52) of the carriage detects the light (P) emitted from the preceding carriage (23). The light emitting element (51) emits the light (P) at a first angle when the carriage moves in the straight sections (1b, 1c) whereas the light emitting element emits the light (P) at a second angle larger (150-180 degrees) than the first angle when the carriage moves in the corner section (1a). <IMAGE>