Human-Machine Interface

HMI or Human-Machine Interface is the 'layer' that separates a human that is operating a machine from the machine itself.\nOne example of a HMI is the computer hardware and software that enables a single operator to monitor and control large machinery remotely. The HMI interface involves the flow of decision support information via \n* visual cues - generally provided by a computer monitor \n* audible cues - speakers, horns, walkie-talkies\n* control actions - keyboards, buttons, switches Multiple monitors, communication devices and control surfaces grouped together form a console or operator station. From a console, an operator scans information, receive notifications and make control actions. A control room may consist of one or more operator consoles. Control rooms and operator stations can be found in many different applications such as\n* Airport control tower\n* Police or ambulance dispatcher\n* Nucleur power plant The design of cockpits in airplanes and helicopters involve highly specialized HMI designs. However consumer appliances such as washing machines or dishwashers also have a HMI. \nHMI used to be called MMIs (man-machine interfaces) but were changed to be politically correct.

See also:

\n*Human factors\n*ergonomics\n*SCADA\n*Programmable logic controller\n*Human-computer interaction\n*Distributed Control System\n*Manufacturing