Crane arrangement

Abstract

Crane arrangement arranged to be mounted on a vehicle, the crane arrangement comprising a movable arm comprising a plurality of crane booms; a crane manoeuvring unit arranged to generate crane operation commands, such as commands for movements of the movable arm, based on received inputs by an operator of the crane arrangement; a positioning arrangement configured to determine the position of the crane manoeuvring unit, and to generate positioning signals in dependence thereto, and a crane controller arranged to monitor and control the movements of the movable arm in response to operation commands received from the crane manoeuvring unit and received positioning signals from the positioning arrangement. The crane controller is arranged to define at least one predefined two-or three-dimensional working space on said vehicle and/or on a trailer of said vehicle, wherein said working space(s) encloses a loading space of the vehicle and/or a loading space of a trailer attached to the vehicle. The crane controller is further configured to determine the position of the crane manoeuvring unit in relation to said working space(s), based upon the received positioning signals, wherein, if it is determined that the position of the crane manoeuvring unit is within said working space(s), the crane controller is configured to enter a safety operating mode resulting in that movements of the movable arm is halted or restricted, according to a set of movement limitation rules.

Dependencies are inferred from the claim text.