To satisfactorily prevent the collision of a conveyer or the like and to improve operation efficiency while reducing standstill time for avoiding the collision as little as possible concerning a collision prevention system for a device for conveying various articles, especially, automatically conveying them in the case of conveying panel products or molding dies in the production process of air bubble lightweight concrete (ALC) panel, for example.

In this collision prevention system for automatic conveyer having plural automatic conveying means for preventing the collision between these automatic conveying means or between these automatic conveying means and the other operating equipment, the automatic conveying means or operating equipment is provided with a computer control means such as a sequencer for controlling its operation and these control means are integrated and simultaneously managed.