Autonomous human-machine-interface in the form of a landing operation panel or a landing information panel for an elevator installation

A human-machine-interface being a landing operation panel or a landing information panel for an elevator installation, the human-machine-interface comprising:

• a panel facing a landing corridor, the panel having an air slot formed therein open to the landing corridor, the air slot being connected to a duct open to an elevator shaft of the elevator installation;
• an interaction unit at the panel that responds to actuation by a passenger by at least one of generating input signals and outputting output signals that can be perceived by the passenger;
• a communication unit that transmits the input signals to an elevator controller and/or receives the output signals from the elevator controller;
• a supply unit that supplies electrical energy to the interaction unit and to the communication unit;
• and
• wherein the supply unit has an energy conversion unit and an electricity storage unit, wherein the energy conversion unit converts kinetic energy from air flowing through the air slot and the duct into electrical energy, and wherein the electricity storage unit stores the electrical energy converted by the energy conversion unit.