Route Management Manual

The Truck

Zones

Zones allow the behavior of the automated truck to be altered for a predefined portion of a route. Zones identify area s requiring special behavior, such as: slow travel, intersections, ramps, uneven floors, or fire doors.

Slow Travel

When the Slow Travel Zone is progra mmed, the automated truck will do the following:

1.Travel at the specified spee d for the specified distance.

2.Resume normal speed.

This Behavior requires the following inpu ts (in metric values) from the trainer (with default values):

•Travel speed: 750 mm/s (1.68 mph)

•Travel distance: 3000 mm (9.8 feet)

NOTE: When training a slow behavior across multiple stations, the slow behavior must be added after each station. This is to make sure the slow behavior is recognized if the truck is restarted between stations.

This Behavior is particularly be neficial in situations such as:

•Doorways

•High-pedestrian-traffic areas

•Hazardous Zones and Restricted Areas (see “Hazardous Zones and Restricted Areas” on page43 )

•Route merge points with other automated trucks

NOTE: Travel speed must be reduced to no more than 300 mm/s (0.67 mph) in Hazardous Zones. The Slow Trav el Behavior should be used to make sure that the appropriate maximum speed is maintained throughout Hazardous Zones.

NOTE: Maximum speed for at least one truck approaching a route merge point should be <1073 m/s (2.4 mph; see “Multiple Automated Trucks on Intersecting Paths” on page110 ).

Intersection Zone

Intersection zones prevent multiple automated trucks from entering areas where paths cross or in tight areas where 2-way travel is required, but only one truck at a time can pass through. The Server manages traffic through areas along a route identified during training as Intersection Zones. The Server manages traffic based on the or der the requests were received. The exception to this is when a priority request is received. In that case, the automated truck with the priority is granted permission to enter the intersection ahead of anot her automated truck that is waiting to enter the intersection.

NOTE: During route training, all Intersection Zones must be trained for all possible pathways (entrances and exits) through the intersection. See Figure6 for an example.

NOTE: If multiple intersections are given the same identification number during training, then automated vehicles in any of the intersections are prohibited from entering if an automated vehicle is present in any other intersection with the sa me identification number.

See “Adding Zones” on page79 for details on how to program a zone.