Method, and associated system, of providing an operator access to a target storage position in an automated storage and retrieval system

Abstract

An automated storage and retrieval system includes a rail system for guiding a plurality of container handling vehicles. The rail system includes a first set of parallel rails arranged in a horizontal plane and extending in a first direction, and a second set of parallel rails arranged in the horizontal plane and extending in a second direction, which is orthogonal to the first direction. The first and second sets of rails form a grid pattern in the horizontal plane including a plurality of adjacent grid cells. Each grid cell includes a grid opening defined by a pair of neighboring rails of the first set of rails and a pair of neighboring rails of the second set of rails. The automated storage and retrieval system includes a storage volume beneath the rail system. The storage volume includes storage columns for storing storage containers and the container handling vehicles are operable to retrieve a storage container from a stack of storage containers within the storage volume. A method of providing an operator access to a target storage position in the automated storage and retrieval system includes operating a master control system to allocate and instruct at least one container handling vehicle to remove storage containers along a first path between a position at a side edge or a top surface of the storage volume and the target storage position such that an operator can access the target storage position through the first path when the at least one container handling vehicle has removed the storage containers along the first path.