JBT Corporation automatic guided vehicle (AGV) systems operate safely at all times and meet or exceed the requirements of ANSI (B56.5), OSHA, and the European Machinery Directive.
360 degree obstacle detection on each automatic guided vehicle (AGV) is provided by front and rear laser bumpers, side safety bumpers, and optical sensors. One important aspect of the safety systems is the use of electronic/optical or mechanical bumpers which detect potential obstacles in the path of the guided vehicle and initiate action to bring the vehicle to safe stop before contacting any obstacle. These safety bumpers are active in all directions of vehicle travel
Electronic/Optical Laser Bumpers
Electronic bumpers are the most popular form of automatic guided vehicle (AGV) obstacle detection because they offer a flexible, maintenance free solution. When sharing halls and aisles with pedestrians and other mobile equipment, electronic bumpers allows users to define multiple programmable "slow-down" and "stop" fields (obstacle detection zone). The sizes and shapes of these bumper fields can be changed during operation of the automatic guided vehicle (AGV). It is typical to shrink down the bumper file and have the AGV operate slowly in tight area of the AGV road system. In wide open aisles, the bumper fields can be made large and the vehicle can operate at a higher speed. Similarly, when the AGV is preparing to make a turn, the bumper field can be offset to see obstacles in that direction of travel.
Mechanical bumpers are the traditional form of obstacle detection. They are typically made from flexible material (plastic, metal of foam) that collapses and trips a limit switch to stop AGV operation. The detection zone of a mechanical bumper is fixed and does not vary during vehicle operation.