Method of controlling a material transfer machine and/or a construction machine, in particular a crane, in which an image of a piece of working equipment, in particular of a lifting hook, and/or of an environment of the piece of working equipment is provided to a machine operator and/or to a machine control, characterized in that the image is provided by a remote controlled aerial drone that is equipped with at least one imaging sensor, wherein the aerial drone - is controlled in an automatic follow mode depending on a position of a piece of working equipment such that the aerial drone automatically follows movements of the piece of working equipment and maintains a desired position relative to the piece of working equipment, also in the case of downward movements of the piece of working equipment, and - is autonomously remote-controlled in an autonomous remote control mode such that different desired positions relative to the machine and/or to its piece of working equipment are flown to by the aerial drone, wherein a desired position for the aerial drone relative to the piece of working equipment is input into a position control module and the input desired position is then flown to by the aerial drone, characterized in that by means of a plurality of imaging sensors of different image categories provided at the aerial drone, comprising a camera and an infrared sensor, different images, comprising a camera image and an infrared image, are detected, wherein the different images comprising the camera image and the infrared image are superimposed by an image processing module and are shown as a common image on a display unit, wherein the drone is controlled by a position control apparatus depending on working area delimitations, wherein the automatic follow control is overridden and the automatic follow mode is invalidated when the areal drone reaches a working area delimitation. - is controlled in an automatic follow mode depending on a position of a piece of working equipment such that the aerial drone automatically follows movements of the piece of working equipment and maintains a desired position relative to the piece of working equipment, also in the case of downward movements of the piece of working equipment, and - is autonomously remote-controlled in an autonomous remote control mode such that different desired positions relative to the machine and/or to its piece of working equipment are flown to by the aerial drone, wherein a desired position for the aerial drone relative to the piece of working equipment is input into a position control module and the input desired position is then flown to by the aerial drone, by means of a plurality of imaging sensors of different image categories provided at the aerial drone, comprising a camera and an infrared sensor, different images, comprising a camera image and an infrared image, are detected, wherein the different images comprising the camera image and the infrared image are superimposed by an image processing module and are shown as a common image on a display unit, wherein the drone is controlled by a position control apparatus depending on working area delimitations, wherein the automatic follow control is overridden and the automatic follow mode is invalidated when the areal drone reaches a working area delimitation.