Patent ID: 8823951

Claim:
A mobile storage comprising: a mobile storage unit extending along a longitudinal axis, having a detection side; an opposing component extending substantially parallel to the longitudinal axis, having an aisle side facing the detection side of the mobile storage unit, the opposing component being one of a wall, a second mobile storage unit and a stationary storage unit; the mobile storage unit being movable between a closed position wherein the detection side of the mobile storage unit and the aisle side of the opposing component are juxtaposed and an open position wherein the mobile storage unit and the opposing component are spaced-apart and a longitudinally extending aisle is defined therebetween; the mobile storage having at least one detection module having an optical pulse emitter and an optical detector both provided at an end of one of the detection side of the mobile storage unit and the aisle side of the opposing component, facing the aisle, the optical pulse emitter emitting a light pulse in a field-of-illumination, the optical detector detecting a reflection of the light pulse in a field-of-view, the field-of-illumination and the field-of-view being adapted to at least partly overlap and to cover at least a portion of a width of the aisle.