Abstract: A system for transporting goods, includes a transport container for holding goods, a driverless transport vehicle for transporting the transport container, and a transfer station, on which the transport container is positionable. The transport container includes a locking device, which is lockable to a first locking unit of the driverless transport vehicle, and to a second locking unit of the transfer station. In a method for transporting goods: the locking device of the transport container is locked to the first locking unit; the transport container is transported by the driverless transport vehicle to the transfer station; the locking device of the transport container is unlocked from the first locking unit; and the locking device of the transport container is locked to the second locking unit.

Abstract: A method for operating a fluid meter, in particular a clamp-on fluid meter, in which a first measuring arrangement is arranged on a fluid-conducting pipe. Fluid flow quantity determination is carried out with the first measuring arrangement. A second measuring arrangement includes an ultrasound transducer that emits an ultrasound signal along a second measurement path. The signal is reflected at the pipe in the direction of the ultrasound transducer. The second measurement path is substantially orthogonal to the pipe and/or flow direction of the fluid. The time of flight of the ultrasound signal along the second measurement path is determined and changes in the flow cross section are found based on the time of flight of the ultrasound signal along the second measurement path. A correction of the first measuring arrangement is carried out with the aid of the changes in the flow cross section.